阅读说明：本技术 量子螺距同步反转螺旋桨组 (Quantum pitch synchronous reverse rotation propeller set ) 是由 江富余 于 2020-04-30 设计创作，主要内容包括：一种量子螺距同步反转螺旋桨组,由两个或两个以定距螺旋桨排列组成一组螺旋桨组,设置一条水平公共驱动轴,同时驱动各个定距螺旋桨转动,各个定距螺旋桨的转速相同,相邻两个定距螺旋桨的旋转中心距离相等,相邻两个定距螺旋桨的转向相反,即相邻两个定距螺旋桨同步反转,各个定距螺旋桨的桨叶数量相同,桨叶直径相同,定距螺旋桨的螺距由大到小排列,第一定距螺旋桨顺时针转时,量子螺距同步反转螺旋桨组的反扭矩等效为顺时针转的定距螺旋桨,第一定距螺旋桨逆时针转时,量子螺距同步反转螺旋桨组的反扭矩等效为逆时针转的定距螺旋桨,应用于多轴直升机,替代单个定距螺旋桨,提高多轴直升机的载重能力和抗风能力,提高效率,减少发动机的数量。(A quantum pitch synchronous reversal propeller group is composed of two or two propeller groups which are arranged by fixed pitch propellers, a horizontal common driving shaft is arranged, each fixed pitch propeller is driven to rotate simultaneously, the rotating speed of each fixed pitch propeller is the same, the rotating center distance of two adjacent fixed pitch propellers is equal, the rotating directions of two adjacent fixed pitch propellers are opposite, namely the two adjacent fixed pitch propellers synchronously reverse, the number of blades of each fixed pitch propeller is the same, the diameter of the blades is the same, the pitches of the fixed pitch propellers are arranged from large to small, when the first fixed pitch propeller rotates clockwise, the counter torque of the quantum pitch synchronous reversal propeller group is equivalent to the fixed pitch propeller rotating clockwise, when the first fixed pitch propeller rotates anticlockwise, the counter torque of the quantum pitch synchronous reversal propeller group is equivalent to the fixed pitch propeller rotating anticlockwise, the quantum pitch synchronous reversal propeller group is applied to a multi, the single fixed-distance propeller is replaced, the load-carrying capacity and the wind resistance of the multi-axis helicopter are improved, the efficiency is improved, and the number of engines is reduced.)

1. The utility model provides a synchronous reversal screw group of quantum pitch, by two or two with the distance screw arrange and constitute a set of screw group, characterized by: a horizontal common driving shaft is arranged and simultaneously drives each distance propeller to rotate, a group of bevel gears with the rotation angle of 90 degrees is arranged on the horizontal common driving shaft to drive a vertical branch shaft, the bevel gear on the horizontal common driving shaft is called a first horizontal bevel gear, the vertical branch shaft is called a first vertical branch shaft, the bevel gear on the first vertical branch shaft is called a first vertical bevel gear, a distance propeller with a horizontal rotating surface is arranged on the first vertical branch shaft and is called a first distance propeller, another group of bevel gears with the rotation angle of 90 degrees is arranged on the horizontal common driving shaft to drive another vertical branch shaft, the bevel gear on the horizontal common driving shaft is called a second horizontal bevel gear, the vertical branch shaft is called a second vertical branch shaft, the bevel gear on the second vertical branch shaft is called a second vertical bevel gear, and a distance propeller with a horizontal rotating surface is arranged on the second vertical branch shaft, the distance propeller is called as a second distance propeller, the distance between a first vertical sub-shaft and a second vertical sub-shaft is larger than the radius of the first distance propeller and smaller than the diameter of the first distance propeller, so that the projection parts of the rotating surfaces of the first distance propeller and the second distance propeller on the horizontal plane are overlapped, the number of teeth and the modulus of a first horizontal bevel gear and a second horizontal bevel gear are the same, the number of teeth and the modulus of a first vertical bevel gear and the modulus of a second vertical bevel gear are the same, the number of teeth is the same or different, so that the rotating speeds of the first distance propeller and the second distance propeller are the same, the first horizontal bevel gear and the second horizontal bevel gear are installed in a mirror image mode, the steering directions of the first distance propeller and the second distance propeller are opposite, and another group of bevel gears is arranged on a horizontal common driving shaft, the other group of bevel gears rotates 90 degrees to drive another vertical sub, a bevel gear on a horizontal common driving shaft is called a third horizontal bevel gear, the vertical split shaft is called a third vertical split shaft, the bevel gear on the third vertical split shaft is called a third vertical bevel gear, a fixed-pitch propeller with a horizontal rotating surface is arranged on the third vertical split shaft and called a third fixed-pitch propeller, the distance between the second vertical split shaft and the third vertical split shaft is larger than the radius of the first fixed-pitch propeller and smaller than the diameter of the first fixed-pitch propeller, so that the rotating surfaces of the second fixed-pitch propeller and the third fixed-pitch propeller are partially overlapped in the horizontal plane, the distance between the second vertical split shaft and the third vertical split shaft is equal to the distance between the first vertical split shaft and the second vertical split shaft, namely the distance between the adjacent vertical split shafts is equal, the teeth number and the modulus of the second horizontal bevel gear and the third horizontal bevel gear are equal, the teeth number and the modulus of the second vertical bevel gear and the third vertical bevel gear are equal, so second distance screw and third distance screw rotational speed are the same, be the mirror image installation with third horizontal bevel gear and second horizontal bevel gear, two adjacent horizontal bevel gears are the mirror image installation promptly, the turning to of third distance screw and second distance screw is opposite, owing to be gear drive, so, every distance screw synchronous rotation, two adjacent distance screw synchronous reversal, the pitch that sets up first distance screw is greater than the pitch of second distance screw, the pitch of second distance screw is greater than the pitch of third distance screw, so on and so forth, form the quantum pitch synchronous reversal screw group that arbitrary number even number distance screw constitutes or the quantum pitch synchronous reversal screw group that arbitrary number odd number distance screw constitutes, when the first distance screw of equivalent quantum pitch synchronous reversal screw group clockwise changes, quantum pitch synchronous reversal screw group is the quantity that the counter-torque equivalence is a clockwise distance screw When the first pitch propeller of the sub-pitch synchronous reverse propeller group rotates anticlockwise, the quantum pitch synchronous reverse propeller group is equivalent to a counter-torque quantum pitch synchronous reverse propeller group of a fixed-pitch propeller rotating anticlockwise, when the fixed-pitch propeller of the equivalent-pitch synchronous reverse-rotation propeller group is composed of two blades, the phase difference of the initial installation angles of two adjacent blades of two adjacent fixed-pitch propellers is set to be 90 degrees, when the fixed-pitch propellers of the equivalent-pitch synchronous reverse-rotation propeller group are composed of three blades, the phase difference of the initial installation angles of two adjacent blades of two adjacent fixed-pitch propellers is set to be 60 degrees, when the fixed-pitch propellers of the equivalent-pitch synchronous reverse-rotation propeller group are composed of three blades, the initial installation angle phase difference of two adjacent blades of two adjacent fixed-pitch propellers is set to be 45 degrees.

Technical Field

The invention relates to a quantum pitch synchronous reversal propeller group which is applied to the combination of propellers of a multi-axis helicopter and can improve the efficiency of the propellers.

Background

The propeller of the multi-shaft helicopter known at present adopts a propeller with a fixed pitch, hereinafter referred to as a fixed pitch propeller, and the fixed pitch propeller has the advantages of simple structure and high reliability.

The propellers of the multi-axis helicopter are fixed-distance propellers, one engine is needed to drive one propeller, the larger the load capacity is, the more propellers are needed, and the more engines are needed.

The screw of multiaxis helicopter adopts the distance screw, because of the distance screw plane of rotation level, when flying before can not overcoming the level, the paddle that moves ahead increases with higher speed, the paddle that moves back slows down the lift and reduces, the paddle that moves ahead is asymmetric with the paddle lift that moves back, produce great torsion to distance screw paddle root, the diameter of screw is big more, this torsion is big more, influence the intensity of screw, in order to reduce this torsion, the diameter of screw can not be too big, consequently, the power of screw has been restricted, the lift is limited.

Disclosure of Invention

In order to obtain the fixed-pitch propeller which has the advantages of simple structure and high reliability, overcomes the defects of lower efficiency and lower lift force of the fixed-pitch propeller,

the invention provides a quantum pitch synchronous reversal propeller group, and the aim is achieved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the method comprises the steps that two or two propeller groups are arranged with fixed-distance propellers to form a group of propeller groups, a horizontal common driving shaft is arranged, a group of bevel gears with the rotation angle of 90 degrees is arranged on the horizontal common driving shaft to drive a vertical split shaft, the bevel gear on the horizontal common driving shaft is called a first horizontal bevel gear, the vertical split shaft is called a first vertical split shaft, the bevel gear on the first vertical split shaft is called a first vertical bevel gear, a fixed-distance propeller with a horizontal rotating surface is arranged on the first vertical split shaft and is called a first fixed-distance propeller, another group of bevel gears with the rotation angle of 90 degrees is arranged on the horizontal common driving shaft to drive another vertical split shaft, the bevel gear on the horizontal common driving shaft is called a second horizontal bevel gear, the vertical split shaft is called a second vertical split shaft, the bevel gear on the second vertical split shaft is called a second vertical bevel gear, and a propeller with the horizontal rotating surface is arranged on the second, the distance propeller is called as a second distance propeller, the distance between a first vertical sub-shaft and a second vertical sub-shaft is larger than the radius of the first distance propeller and smaller than the diameter of the first distance propeller, so that the projection parts of the rotating surfaces of the first distance propeller and the second distance propeller on the horizontal plane are overlapped, the number of teeth and the modulus of a first horizontal bevel gear and a second horizontal bevel gear are the same, the number of teeth and the modulus of a first vertical bevel gear and the modulus of a second vertical bevel gear are the same, the number of teeth is the same or different, so that the rotating speeds of the first distance propeller and the second distance propeller are the same, the first horizontal bevel gear and the second horizontal bevel gear are installed in a mirror image mode, the steering directions of the first distance propeller and the second distance propeller are opposite, and another group of bevel gears is arranged on a horizontal common driving shaft, the other group of bevel gears rotates 90 degrees to drive another vertical sub, a bevel gear on a horizontal common driving shaft is called a third horizontal bevel gear, the vertical split shaft is called a third vertical split shaft, the bevel gear on the third vertical split shaft is called a third vertical bevel gear, a fixed-pitch propeller with a horizontal rotating surface is arranged on the third vertical split shaft and is called a third fixed-pitch propeller, the distance between the second vertical split shaft and the third vertical split shaft is larger than the radius of the first fixed-pitch propeller and smaller than the diameter of the first fixed-pitch propeller, so that the rotating surfaces of the second fixed-pitch propeller and the third fixed-pitch propeller are partially overlapped on the horizontal plane, the distance between the second vertical split shaft and the third vertical split shaft is equal to the distance between the first vertical split shaft and the second vertical split shaft, namely the distance between adjacent vertical split shafts is equal, the teeth and the modulus of the second horizontal bevel gear and the third horizontal bevel gear are equal, the teeth and the modulus of the second vertical bevel gear and the third vertical bevel gear are equal, so second distance screw is the same with third distance screw rotational speed, is the mirror image installation with third horizontal bevel gear and second horizontal bevel gear, and two adjacent horizontal bevel gears are the mirror image installation promptly, and the direction of turning to of third distance screw and second distance screw is opposite, owing to be gear drive, so, every distance screw synchronous rotation, two adjacent distance screw synchronous reversal, so analogize, the quantum pitch synchronous reversal screw group that forms of the even number distance screw of arbitrary quantity or the quantum pitch synchronous reversal screw group that forms of the odd number distance screw of arbitrary quantity.

The quantum pitch synchronous reversal propeller group may be composed of two or more than two fixed-pitch propellers, and for simplicity of description, the quantum pitch synchronous reversal propeller group composed of two fixed-pitch propellers represents the synchronous reversal propeller group composed of even fixed-pitch propellers, and the quantum pitch synchronous reversal propeller group composed of three fixed-pitch propellers represents the synchronous reversal propeller group composed of even fixed-pitch propellers.

The pitch propeller blades may be composed of two or more blades, and for simplicity of description, pitch propellers of two blades, three blades, and four blades are exemplified.

When the fixed-pitch propeller consists of two blades and the quantum pitch synchronous reverse propeller group consists of two fixed-pitch propellers, two groups of bevel gear rotating angles with rotating angles of 90 degrees and two vertical split shafts are arranged on a horizontal common driving shaft.

A horizontal common driving shaft is arranged, two groups of bevel gears are arranged on the horizontal common driving shaft, the bevel gears rotate 90 degrees to respectively drive two vertical branch shafts, a first horizontal bevel gear drives a first vertical bevel gear to drive a first pitch propeller on the first vertical branch shaft to rotate, a second horizontal bevel gear drives a second vertical bevel gear to drive a second pitch propeller on the second vertical branch shaft to rotate, the distance between the first vertical branch shaft and the second vertical branch shaft is larger than the radius of the first pitch propeller and smaller than the diameter of the first pitch propeller, the projection parts of the rotating surfaces of the first pitch propeller and the second pitch propeller on the horizontal plane are overlapped, the tooth number and the modulus of the first horizontal bevel gear and the modulus of the second horizontal bevel gear are the same, the tooth number and the modulus of the first vertical bevel gear and the modulus of the second vertical bevel gear are the same, and the moduli of the first horizontal bevel gear and the first vertical bevel gear are, the number of teeth is the same or inequality, so first distance screw and second distance screw rotational speed are the same, be the mirror image installation each other with first horizontal bevel gear and second horizontal bevel gear, the turning to of first distance screw and second distance screw is opposite, with two adjacent paddle initial installation angular phase differences 90 of first distance screw and second distance screw, because of reversing first distance screw and second distance screw synchronous, so, even the plane of rotation of first distance screw and second distance screw overlaps at the projection part on horizontal plane, the paddle of first distance screw and second distance screw also can not collide each other.

If the diameters of the blades of the first fixed-pitch propeller and the second fixed-pitch propeller are the same and the pitches are the same, the reaction torques of the first fixed-pitch propeller and the second fixed-pitch propeller are mutually offset due to the synchronous reverse rotation of the first fixed-pitch propeller and the second fixed-pitch propeller, and the fixed-pitch propeller group is called an even number congruent synchronous reverse rotation propeller group.

If the diameter of the blades of the first pitch propeller is slightly larger than that of the blades of the second pitch propeller, but the pitches are the same, because the first pitch propeller and the second pitch propeller synchronously rotate reversely, most of reactive torques of the first pitch propeller and the second pitch propeller are mutually offset, part of reactive torques are remained, the direction of the reactive torques is the same as that of the reactive torques of the first pitch propeller, and the pitch propeller group is called as an even number unequal diameter same pitch synchronous reverse propeller group.

If the blade diameter of first distance screw propeller and second distance screw propeller is the same, the pitch of first distance screw propeller is greater than the pitch of second distance screw propeller, because first distance screw propeller and the synchronous reversal of second distance screw propeller, therefore, the reaction torque of first distance screw propeller is greater than the reaction torque of second distance screw propeller, the reaction torque of first distance screw propeller and second distance screw propeller mostly offsets each other, still leave partial reaction torque, the direction is the same with the reaction torque direction of first distance screw propeller, because there are two kinds of pitches of big or small, two kinds of pitches are discontinuous, like quantum number, this kind of distance screw propeller group is called even quantum pitch synchronous reversal screw propeller group.

If the first fixed-pitch propeller in the even-number quantum pitch synchronous reversal propeller group rotates clockwise, the second fixed-pitch propeller rotates anticlockwise, and the reaction torque of the even-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating clockwise.

If the first fixed-pitch propeller in the even-number quantum pitch synchronous reversal propeller group rotates anticlockwise, the second fixed-pitch propeller rotates clockwise, and the reaction torque of the even-number quantum pitch synchronous reversal propeller group is equivalent to an anticlockwise rotating fixed-pitch propeller.

Even number of equal synchronous reverse propeller groups improve lift force compared with a single fixed-pitch propeller, but only have one pitch, so that the helicopter cannot fly at high efficiency in a large flight speed range, and reactive torques are mutually offset, so that the helicopter cannot be applied to a conventional multi-axis helicopter.

The even number of the propeller groups with unequal diameters and the same pitch synchronously and reversely rotate improves the lift force compared with a single fixed-distance propeller, but only one pitch can not fly at high efficiency in a larger flight speed range.

The even number of the quantum pitch synchronous reverse rotation propeller groups improve the lift force compared with a single fixed-distance propeller, and because the pitch of the first fixed-distance propeller is larger than that of the second fixed-distance propeller, the flight efficiency of the first fixed-distance propeller is high and the flight efficiency of the second fixed-distance propeller is low during high-speed flight; during low-speed flight, the flight efficiency of second distance screw is high, and the flight efficiency of first distance screw is low, and quantum pitch synchronous reversal screw group can have higher stable efficiency flight in great flying speed scope.

An engine drives a set of even-numbered quantum pitch synchronously-reversed propellers, reducing the number of engines compared with a single fixed pitch propeller.

When the fixed-pitch propeller consists of three blades and the quantum pitch synchronous reverse propeller group consists of two fixed-pitch propellers, two groups of bevel gear rotating angles with rotating angles of 90 degrees and two vertical split shafts are arranged on a horizontal common driving shaft.

A horizontal common driving shaft is arranged, two groups of bevel gears are arranged on the horizontal common driving shaft, the bevel gears rotate 90 degrees to respectively drive two vertical branch shafts, a first horizontal bevel gear drives a first vertical bevel gear to drive a first pitch propeller on the first vertical branch shaft to rotate, a second horizontal bevel gear drives a second vertical bevel gear to drive a second pitch propeller on the second vertical branch shaft to rotate, the distance between the first vertical branch shaft and the second vertical branch shaft is larger than the radius of the first pitch propeller and smaller than the diameter of the first pitch propeller, the projection parts of the rotating surfaces of the first pitch propeller and the second pitch propeller on the horizontal plane are overlapped, the tooth number and the modulus of the first horizontal bevel gear and the modulus of the second horizontal bevel gear are the same, the tooth number and the modulus of the first vertical bevel gear and the modulus of the second vertical bevel gear are the same, and the moduli of the first horizontal bevel gear and the first vertical bevel gear are, the number of teeth is the same or inequality, so first distance screw and second distance screw rotational speed are the same, be the mirror image installation each other with first horizontal bevel gear and second horizontal bevel gear, the turning to of first distance screw and second distance screw is opposite, with two adjacent paddle initial installation angular phase difference 60 of first distance screw and second distance screw, because of first distance screw and the synchronous reversal of second distance screw, so, even the plane of rotation of first distance screw and second distance screw overlaps at the projection part on horizontal plane, the paddle of first distance screw and second distance screw also can not collide each other.

If the diameters of the blades of the first fixed-pitch propeller and the second fixed-pitch propeller are the same and the pitches are the same, the reaction torques of the first fixed-pitch propeller and the second fixed-pitch propeller are mutually offset due to the synchronous reverse rotation of the first fixed-pitch propeller and the second fixed-pitch propeller, and the fixed-pitch propeller group is called an even number congruent synchronous reverse rotation propeller group.

If the diameter of the blades of the first pitch propeller is slightly larger than that of the blades of the second pitch propeller, but the pitches are the same, because the first pitch propeller and the second pitch propeller synchronously rotate reversely, most of reactive torques of the first pitch propeller and the second pitch propeller are mutually offset, part of reactive torques are remained, the direction of the reactive torques is the same as that of the reactive torques of the first pitch propeller, and the pitch propeller group is called as an even number unequal diameter same pitch synchronous reverse propeller group.

If the blade diameter of first distance screw propeller and second distance screw propeller is the same, the pitch of first distance screw propeller is greater than the pitch of second distance screw propeller, because first distance screw propeller and the synchronous reversal of second distance screw propeller, therefore, the reaction torque of first distance screw propeller is greater than the reaction torque of second distance screw propeller, the reaction torque of first distance screw propeller and second distance screw propeller mostly offsets each other, still leave partial reaction torque, the direction is the same with the reaction torque direction of first distance screw propeller, because there are two kinds of pitches of big or small, two kinds of pitches are discontinuous, like quantum number, this kind of distance screw propeller group is called even quantum pitch synchronous reversal screw propeller group.

If the first fixed-pitch propeller in the even-number quantum pitch synchronous reversal propeller group rotates clockwise, the second fixed-pitch propeller rotates anticlockwise, and the reaction torque of the even-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating clockwise.

If the first fixed-pitch propeller in the even-number quantum pitch synchronous reversal propeller group rotates anticlockwise, the second fixed-pitch propeller rotates clockwise, and the reaction torque of the even-number quantum pitch synchronous reversal propeller group is equivalent to an anticlockwise rotating fixed-pitch propeller.

Even number of equal synchronous reverse propeller groups improve lift force compared with a single fixed-pitch propeller, but only have one pitch, so that the helicopter cannot fly at high efficiency in a large flight speed range, and reactive torques are mutually offset, so that the helicopter cannot be applied to a conventional multi-axis helicopter.

The even number of the propeller groups with unequal diameters and the same pitch synchronously and reversely rotate improves the lift force compared with a single fixed-distance propeller, but only one pitch can not fly at high efficiency in a larger flight speed range.

The even number of the quantum pitch synchronous reverse rotation propeller groups improve the lift force compared with a single fixed-distance propeller, and because the pitch of the first fixed-distance propeller is larger than that of the second fixed-distance propeller, the flight efficiency of the first fixed-distance propeller is high and the flight efficiency of the second fixed-distance propeller is low during high-speed flight; during low-speed flight, the flight efficiency of second distance screw is high, and the flight efficiency of first distance screw is low, and quantum pitch synchronous reversal screw group can have higher stable efficiency flight in great flying speed scope.

When the fixed-pitch propeller consists of four blades and the quantum pitch synchronous reverse propeller group consists of two fixed-pitch propellers, two groups of bevel gear rotating angles with rotating angles of 90 degrees and two vertical split shafts are arranged on a horizontal common driving shaft.

A horizontal common driving shaft is arranged, two groups of bevel gears are arranged on the horizontal common driving shaft, the bevel gears rotate 90 degrees to respectively drive two vertical branch shafts, a first horizontal bevel gear drives a first vertical bevel gear to drive a first pitch propeller on the first vertical branch shaft to rotate, a second horizontal bevel gear drives a second vertical bevel gear to drive a second pitch propeller on the second vertical branch shaft to rotate, the distance between the first vertical branch shaft and the second vertical branch shaft is larger than the radius of the first pitch propeller and smaller than the diameter of the first pitch propeller, the projection parts of the rotating surfaces of the first pitch propeller and the second pitch propeller on the horizontal plane are overlapped, the tooth number and the modulus of the first horizontal bevel gear and the modulus of the second horizontal bevel gear are the same, the tooth number and the modulus of the first vertical bevel gear and the modulus of the second vertical bevel gear are the same, and the moduli of the first horizontal bevel gear and the first vertical bevel gear are, the number of teeth is the same or inequality, so first distance screw and second distance screw rotational speed are the same, be the mirror image installation each other with first horizontal bevel gear and second horizontal bevel gear, the turning to of first distance screw and second distance screw is opposite, with two adjacent paddle initial installation angular phase difference 45 of first distance screw and second distance screw, because of with first distance screw and the synchronous reversal of second distance screw, so, even the plane of rotation of first distance screw and second distance screw overlaps at the projection part on horizontal plane, the paddle of first distance screw and second distance screw also can not collide each other.

If the diameters of the blades of the first fixed-pitch propeller and the second fixed-pitch propeller are the same and the pitches are the same, the reaction torques of the first fixed-pitch propeller and the second fixed-pitch propeller are mutually offset due to the synchronous reverse rotation of the first fixed-pitch propeller and the second fixed-pitch propeller, and the fixed-pitch propeller group is called an even number congruent synchronous reverse rotation propeller group.

If the diameter of the blades of the first pitch propeller is slightly larger than that of the blades of the second pitch propeller, but the pitches are the same, because the first pitch propeller and the second pitch propeller synchronously rotate reversely, most of reactive torques of the first pitch propeller and the second pitch propeller are mutually offset, part of reactive torques are remained, the direction of the reactive torques is the same as that of the reactive torques of the first pitch propeller, and the pitch propeller group is called as an even number unequal diameter same pitch synchronous reverse propeller group.

If the blade diameter of first distance screw propeller and second distance screw propeller is the same, the pitch of first distance screw propeller is greater than the pitch of second distance screw propeller, because first distance screw propeller and the synchronous reversal of second distance screw propeller, therefore, the reaction torque of first distance screw propeller is greater than the reaction torque of second distance screw propeller, the reaction torque of first distance screw propeller and second distance screw propeller mostly offsets each other, still leave partial reaction torque, the direction is the same with the reaction torque direction of first distance screw propeller, because there are two kinds of pitches of big or small, two kinds of pitches are discontinuous, like quantum number, this kind of distance screw propeller group is called even quantum pitch synchronous reversal screw propeller group.

If the first fixed-pitch propeller in the even-number quantum pitch synchronous reversal propeller group rotates clockwise, the second fixed-pitch propeller rotates anticlockwise, and the reaction torque of the even-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating clockwise.

If the first fixed-pitch propeller in the even-number quantum pitch synchronous reversal propeller group rotates anticlockwise, the second fixed-pitch propeller rotates clockwise, and the reaction torque of the even-number quantum pitch synchronous reversal propeller group is equivalent to an anticlockwise rotating fixed-pitch propeller.

Even number of equal synchronous reverse propeller groups improve lift force compared with a single fixed-pitch propeller, but only have one pitch, so that the helicopter cannot fly at high efficiency in a large flight speed range, and reactive torques are mutually offset, so that the helicopter cannot be applied to a conventional multi-axis helicopter.

The even number of the propeller groups with unequal diameters and the same pitch synchronously and reversely rotate improves the lift force compared with a single fixed-distance propeller, but only one pitch can not fly at high efficiency in a larger flight speed range.

The even number of the quantum pitch synchronous reverse rotation propeller groups improve the lift force compared with a single fixed-distance propeller, and because the pitch of the first fixed-distance propeller is larger than that of the second fixed-distance propeller, the flight efficiency of the first fixed-distance propeller is high and the flight efficiency of the second fixed-distance propeller is low during high-speed flight; during low-speed flight, the flight efficiency of second distance screw is high, and the flight efficiency of first distance screw is low, and quantum pitch synchronous reversal screw group can have higher stable efficiency flight in great flying speed scope.

When the fixed-pitch propeller consists of two blades and the quantum pitch synchronous reverse propeller group consists of three fixed-pitch propellers, three groups of bevel gear rotating angles with rotating angles of 90 degrees and three vertical split shafts are arranged on a horizontal common driving shaft.

A horizontal common driving shaft is arranged, three groups of bevel gears are arranged on the horizontal common driving shaft, the bevel gears rotate 90 degrees to respectively drive three vertical branch shafts, a first horizontal bevel gear drives a first vertical bevel gear to drive a first fixed-distance propeller on the first vertical branch shaft to rotate, a second horizontal bevel gear drives a second vertical bevel gear to drive a second fixed-distance propeller on the second vertical branch shaft to rotate, and a third horizontal bevel gear drives a third vertical bevel gear to drive a third fixed-distance propeller on the third vertical branch shaft to rotate.

The distance between the first vertical split shaft and the second vertical split shaft is larger than the radius of the first fixed pitch propeller and smaller than the diameter of the first fixed pitch propeller, so that the projection parts of the rotating surfaces of the first fixed pitch propeller and the second fixed pitch propeller on the horizontal plane are overlapped, the distance between the second vertical split shaft and the third vertical split shaft is equal to the distance between the first vertical split shaft and the second vertical split shaft, and the projection parts of the rotating surfaces of the second fixed pitch propeller and the third fixed pitch propeller on the horizontal plane are overlapped.

The number of teeth and the modulus of the first horizontal bevel gear and the second horizontal bevel gear are the same, the number of teeth and the modulus of the first vertical bevel gear and the second vertical bevel gear are the same, the modulus of the first horizontal bevel gear and the modulus of the first vertical bevel gear are the same, and the number of teeth is the same or different, so that the rotating speeds of the first fixed-distance propeller and the second fixed-distance propeller are the same.

The number of teeth and the modulus of the second horizontal bevel gear and the third horizontal bevel gear are the same, and the number of teeth and the modulus of the second vertical bevel gear and the third vertical bevel gear are the same, so that the rotating speeds of the first pitch propeller and the second pitch propeller are the same, and the rotating speeds of the third pitch propeller are the same.

The first horizontal bevel gear and the second horizontal bevel gear are installed in a mirror image mode, the first pitch propeller and the second pitch propeller are installed in an opposite direction, the third horizontal bevel gear and the second horizontal bevel gear are installed in a mirror image mode, and the third pitch propeller and the second pitch propeller are installed in an opposite direction.

The initial installation angle phase difference of two adjacent blades of the first fixed-pitch propeller and the second fixed-pitch propeller is 90 degrees, and the first fixed-pitch propeller and the second fixed-pitch propeller synchronously rotate reversely, so that the blades of the first fixed-pitch propeller and the second fixed-pitch propeller cannot collide with each other even if the projection parts of the rotating surfaces of the first fixed-pitch propeller and the second fixed-pitch propeller on the horizontal plane are overlapped.

The two adjacent blades of the second distance propeller and the third distance propeller are initially installed at an angular phase difference of 90 degrees, and the second distance propeller and the third distance propeller are synchronously rotated reversely, so that the blades of the second distance propeller and the third distance propeller cannot collide with each other even if the projection parts of the rotating surfaces of the second distance propeller and the third distance propeller on the horizontal plane are overlapped.

If the diameters of the blades of the first fixed-pitch propeller, the second fixed-pitch propeller and the third fixed-pitch propeller are the same, and the screw pitches are the same, because the first fixed-pitch propeller and the second fixed-pitch propeller synchronously rotate reversely, the reactive torques of the first fixed-pitch propeller and the second fixed-pitch propeller are mutually offset, and the reactive torque of the third fixed-pitch propeller is left, and the fixed-pitch propeller group is called as an odd number congruent synchronous reverse propeller group.

If the diameters of the blades of the first fixed-pitch propeller, the second fixed-pitch propeller and the third fixed-pitch propeller are the same, the pitch of the first fixed-pitch propeller is greater than that of the second fixed-pitch propeller, the pitch of the second fixed-pitch propeller is greater than that of the third fixed-pitch propeller, and because the first fixed-pitch propeller and the second fixed-pitch propeller synchronously rotate reversely, most of the reactive torques of the first fixed-pitch propeller and the second fixed-pitch propeller are offset, and part of the reactive torques in the same direction as that of the first fixed-pitch propeller and that of the third fixed-pitch propeller are left, the left reactive torques are in the same direction as that of the third fixed-pitch propeller, the number of the reactive torques is equal to that of the third fixed-pitch propeller plus a little, and because of three pitches, three pitches are discontinuous, like the quantum number, this set of spaced propellers is called an odd set of quantum pitch synchronous contra-rotating propellers.

The odd number of the equal synchronous reverse rotation propeller groups improves the lift force compared with a single fixed-pitch propeller, but only has one pitch, and cannot fly at high efficiency in the whole flight speed range.

If the first fixed-pitch propeller in the odd-number quantum pitch synchronous reversal propeller group rotates clockwise, the second fixed-pitch propeller rotates anticlockwise, the third fixed-pitch propeller rotates clockwise, and the counter-torque of the odd-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating clockwise.

If the first fixed-pitch propeller in the odd-number quantum pitch synchronous reversal propeller group rotates anticlockwise, the second fixed-pitch propeller rotates clockwise, the third fixed-pitch propeller rotates anticlockwise, and the counter-torque of the odd-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating anticlockwise.

The odd number quantum pitch synchronous reverse rotation propeller group improves the lift force compared with a single fixed-distance propeller, and because the pitch of the first fixed-distance propeller is larger than that of the second fixed-distance propeller and the pitch of the second fixed-distance propeller is larger than that of the third fixed-distance propeller, the flight efficiency of the first fixed-distance propeller is high and the flight efficiencies of the second fixed-distance propeller and the third fixed-distance propeller are low during high-speed flight; when flying at a medium speed, the flying efficiency of the second fixed-distance propeller is high, and the flying efficiency of the first fixed-distance propeller and the third fixed-distance propeller is low; during low-speed flight, the flight efficiency of third distance screw is high, and the flight efficiency of first distance screw and second distance screw is lower, and odd number quantum pitch synchronous reversal screw group can have higher stable efficiency flight in great flying speed scope.

When the fixed-pitch propeller consists of three blades and the quantum pitch synchronous reverse propeller group consists of three fixed-pitch propellers, three groups of bevel gear rotating angles with rotating angles of 90 degrees and three vertical split shafts are arranged on a horizontal common driving shaft.

A horizontal common driving shaft is arranged, three groups of bevel gears are arranged on the horizontal common driving shaft, the bevel gears rotate 90 degrees to respectively drive three vertical branch shafts, a first horizontal bevel gear drives a first vertical bevel gear to drive a first fixed-distance propeller on the first vertical branch shaft to rotate, a second horizontal bevel gear drives a second vertical bevel gear to drive a second fixed-distance propeller on the second vertical branch shaft to rotate, and a third horizontal bevel gear drives a third vertical bevel gear to drive a third fixed-distance propeller on the third vertical branch shaft to rotate.

The distance between the first vertical split shaft and the second vertical split shaft is larger than the radius of the first fixed pitch propeller and smaller than the diameter of the first fixed pitch propeller, so that the projection parts of the rotating surfaces of the first fixed pitch propeller and the second fixed pitch propeller on the horizontal plane are overlapped, the distance between the second vertical split shaft and the third vertical split shaft is equal to the distance between the first vertical split shaft and the second vertical split shaft, and the projection parts of the rotating surfaces of the second fixed pitch propeller and the third fixed pitch propeller on the horizontal plane are overlapped.

The number of teeth and the modulus of the first horizontal bevel gear and the second horizontal bevel gear are the same, the number of teeth and the modulus of the first vertical bevel gear and the second vertical bevel gear are the same, the modulus of the first horizontal bevel gear and the modulus of the first vertical bevel gear are the same, and the number of teeth is the same or different, so that the rotating speeds of the first fixed-distance propeller and the second fixed-distance propeller are the same.

The number of teeth and the modulus of the second horizontal bevel gear and the third horizontal bevel gear are the same, the number of teeth and the modulus of the second vertical bevel gear and the third vertical bevel gear are the same, and the number of teeth and the modulus of the second horizontal bevel gear and the second vertical bevel gear are the same or different, so that the rotating speeds of the first pitch propeller and the second pitch propeller are the same and the rotating speed of the third pitch propeller is the same.

The first horizontal bevel gear and the second horizontal bevel gear are installed in a mirror image mode, the first pitch propeller and the second pitch propeller are installed in an opposite direction, the third horizontal bevel gear and the second horizontal bevel gear are installed in a mirror image mode, and the third pitch propeller and the second pitch propeller are installed in an opposite direction.

The two adjacent blades of the first fixed-pitch propeller and the second fixed-pitch propeller are initially installed at an angular phase difference of 60 degrees, and the first fixed-pitch propeller and the second fixed-pitch propeller are synchronously rotated reversely, so that the blades of the first fixed-pitch propeller and the second fixed-pitch propeller cannot collide with each other even if the projection parts of the rotating surfaces of the first fixed-pitch propeller and the second fixed-pitch propeller on the horizontal plane are overlapped.

The two adjacent blades of the second distance propeller and the third distance propeller are initially installed at an angular phase difference of 60 degrees, and the second distance propeller and the third distance propeller are synchronously rotated reversely, so that the blades of the second distance propeller and the third distance propeller cannot collide with each other even if the projection parts of the rotating surfaces of the second distance propeller and the third distance propeller on the horizontal plane are overlapped.

If the diameters of the blades of the first fixed-pitch propeller, the second fixed-pitch propeller and the third fixed-pitch propeller are the same, and the screw pitches are the same, because the first fixed-pitch propeller and the second fixed-pitch propeller synchronously rotate reversely, the reactive torques of the first fixed-pitch propeller and the second fixed-pitch propeller are mutually offset, and the reactive torque of the third fixed-pitch propeller is left, and the fixed-pitch propeller group is called as an odd number congruent synchronous reverse propeller group.

If the diameters of the blades of the first fixed-pitch propeller, the second fixed-pitch propeller and the third fixed-pitch propeller are the same, the pitch of the first fixed-pitch propeller is greater than that of the second fixed-pitch propeller, the pitch of the second fixed-pitch propeller is greater than that of the third fixed-pitch propeller, and because the first fixed-pitch propeller and the second fixed-pitch propeller synchronously rotate reversely, most of the reactive torques of the first fixed-pitch propeller and the second fixed-pitch propeller are offset, and part of the reactive torques in the same direction as that of the first fixed-pitch propeller and that of the third fixed-pitch propeller are left, the left reactive torques are in the same direction as that of the third fixed-pitch propeller, the number of the reactive torques is equal to that of the third fixed-pitch propeller plus a little, and because of three pitches, three pitches are discontinuous, like the quantum number, this set of spaced propellers is called an odd set of quantum pitch synchronous contra-rotating propellers.

The odd number of the equal synchronous reverse rotation propeller groups improves the lift force compared with a single fixed-pitch propeller, but only has one pitch, and cannot fly at high efficiency in the whole flight speed range.

If the first fixed-pitch propeller in the odd-number quantum pitch synchronous reversal propeller group rotates clockwise, the second fixed-pitch propeller rotates anticlockwise, the third fixed-pitch propeller rotates clockwise, and the counter-torque of the odd-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating clockwise.

If the first fixed-pitch propeller in the odd-number quantum pitch synchronous reversal propeller group rotates anticlockwise, the second fixed-pitch propeller rotates clockwise, the third fixed-pitch propeller rotates anticlockwise, and the counter-torque of the odd-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating anticlockwise.

The odd number quantum pitch synchronous reverse rotation propeller group improves the lift force compared with a single fixed-distance propeller, and because the pitch of the first fixed-distance propeller is larger than that of the second fixed-distance propeller and the pitch of the second fixed-distance propeller is larger than that of the third fixed-distance propeller, the flight efficiency of the first fixed-distance propeller is high and the flight efficiencies of the second fixed-distance propeller and the third fixed-distance propeller are low during high-speed flight; when flying at a medium speed, the flying efficiency of the second fixed-distance propeller is high, and the flying efficiency of the first fixed-distance propeller and the third fixed-distance propeller is low; during low-speed flight, the flight efficiency of third distance screw is high, and the flight efficiency of first distance screw and second distance screw is lower, and odd number quantum pitch synchronous reversal screw group can have higher stable efficiency flight in great flying speed scope.

When the fixed-pitch propeller consists of four blades and the quantum pitch synchronous reverse propeller group consists of three fixed-pitch propellers, three groups of bevel gear rotating angles with rotating angles of 90 degrees and three vertical split shafts are arranged on a horizontal common driving shaft.

A horizontal common driving shaft is arranged, three groups of bevel gears are arranged on the horizontal common driving shaft, the bevel gears rotate 90 degrees to respectively drive three vertical branch shafts, a first horizontal bevel gear drives a first vertical bevel gear to drive a first fixed-distance propeller on the first vertical branch shaft to rotate, a second horizontal bevel gear drives a second vertical bevel gear to drive a second fixed-distance propeller on the second vertical branch shaft to rotate, and a third horizontal bevel gear drives a third vertical bevel gear to drive a third fixed-distance propeller on the third vertical branch shaft to rotate.

The distance between the first vertical split shaft and the second vertical split shaft is larger than the radius of the first fixed pitch propeller and smaller than the diameter of the first fixed pitch propeller, so that the projection parts of the rotating surfaces of the first fixed pitch propeller and the second fixed pitch propeller on the horizontal plane are overlapped, the distance between the second vertical split shaft and the third vertical split shaft is equal to the distance between the first vertical split shaft and the second vertical split shaft, and the projection parts of the rotating surfaces of the second fixed pitch propeller and the third fixed pitch propeller on the horizontal plane are overlapped.

The number of teeth and the modulus of the first horizontal bevel gear and the second horizontal bevel gear are the same, the number of teeth and the modulus of the first vertical bevel gear and the second vertical bevel gear are the same, the modulus of the first horizontal bevel gear and the modulus of the first vertical bevel gear are the same, and the number of teeth is the same or different, so that the rotating speeds of the first fixed-distance propeller and the second fixed-distance propeller are the same.

The number of teeth and the modulus of the second horizontal bevel gear and the third horizontal bevel gear are the same, the number of teeth and the modulus of the second vertical bevel gear and the third vertical bevel gear are the same, and the number of teeth and the modulus of the second horizontal bevel gear and the second vertical bevel gear are the same or different, so that the rotating speeds of the first pitch propeller and the second pitch propeller are the same and the rotating speed of the third pitch propeller is the same.

The first horizontal bevel gear and the second horizontal bevel gear are installed in a mirror image mode, the first pitch propeller and the second pitch propeller are installed in an opposite direction, the third horizontal bevel gear and the second horizontal bevel gear are installed in a mirror image mode, and the third pitch propeller and the second pitch propeller are installed in an opposite direction.

The two adjacent blades of the first fixed-pitch propeller and the second fixed-pitch propeller are initially installed at an angular phase difference of 45 degrees, and the first fixed-pitch propeller and the second fixed-pitch propeller are synchronously rotated reversely, so that the blades of the first fixed-pitch propeller and the second fixed-pitch propeller cannot collide with each other even if the projection parts of the rotating surfaces of the first fixed-pitch propeller and the second fixed-pitch propeller on the horizontal plane are overlapped.

The angle phase difference between two adjacent blades of the second distance propeller and the third distance propeller is 45 degrees, and the second distance propeller and the third distance propeller synchronously rotate reversely, so that the blades of the second distance propeller and the third distance propeller cannot collide with each other even if the projection parts of the rotating surfaces of the second distance propeller and the third distance propeller on the horizontal plane are overlapped.

If the diameters of the blades of the first fixed-pitch propeller, the second fixed-pitch propeller and the third fixed-pitch propeller are the same, and the screw pitches are the same, because the first fixed-pitch propeller and the second fixed-pitch propeller synchronously rotate reversely, the reactive torques of the first fixed-pitch propeller and the second fixed-pitch propeller are mutually offset, and the reactive torque of the third fixed-pitch propeller is left, and the fixed-pitch propeller group is called as an odd number congruent synchronous reverse propeller group.

If the diameters of the blades of the first fixed-pitch propeller, the second fixed-pitch propeller and the third fixed-pitch propeller are the same, the pitch of the first fixed-pitch propeller is greater than that of the second fixed-pitch propeller, the pitch of the second fixed-pitch propeller is greater than that of the third fixed-pitch propeller, and because the first fixed-pitch propeller and the second fixed-pitch propeller synchronously rotate reversely, most of the reactive torques of the first fixed-pitch propeller and the second fixed-pitch propeller are offset, and part of the reactive torques in the same direction as that of the first fixed-pitch propeller and that of the third fixed-pitch propeller are left, the left reactive torques are in the same direction as that of the third fixed-pitch propeller, the number of the reactive torques is equal to that of the third fixed-pitch propeller plus a little, and because of three pitches, three pitches are discontinuous, like the quantum number, this set of spaced propellers is called an odd set of quantum pitch synchronous contra-rotating propellers.

The odd number of the equal synchronous reverse rotation propeller groups improves the lift force compared with a single fixed-pitch propeller, but only has one pitch, and cannot fly at high efficiency in the whole flight speed range.

If the first fixed-pitch propeller in the odd-number quantum pitch synchronous reversal propeller group rotates clockwise, the second fixed-pitch propeller rotates anticlockwise, the third fixed-pitch propeller rotates clockwise, and the counter-torque of the odd-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating clockwise.

If the first fixed-pitch propeller in the odd-number quantum pitch synchronous reversal propeller group rotates anticlockwise, the second fixed-pitch propeller rotates clockwise, the third fixed-pitch propeller rotates anticlockwise, and the counter-torque of the odd-number quantum pitch synchronous reversal propeller group is equivalent to a fixed-pitch propeller rotating anticlockwise.

The odd number quantum pitch synchronous reverse rotation propeller group improves the lift force compared with a single fixed-distance propeller, and because the pitch of the first fixed-distance propeller is larger than that of the second fixed-distance propeller and the pitch of the second fixed-distance propeller is larger than that of the third fixed-distance propeller, the flight efficiency of the first fixed-distance propeller is high and the flight efficiencies of the second fixed-distance propeller and the third fixed-distance propeller are low during high-speed flight; when flying at a medium speed, the flying efficiency of the second fixed-distance propeller is high, and the flying efficiency of the first fixed-distance propeller and the third fixed-distance propeller is low; during low-speed flight, the flight efficiency of third distance screw is high, and the flight efficiency of first distance screw and second distance screw is lower, and odd number quantum pitch synchronous reversal screw group can have higher stable efficiency flight in great flying speed scope.

The even quantum pitch synchronous reversal propeller group and the odd quantum pitch synchronous reversal propeller group are collectively called as a quantum pitch synchronous reversal propeller group.

The quantum pitch synchronous reversal propeller group has the advantages that the quantum pitch synchronous reversal propeller group has larger lifting force than a single fixed pitch propeller, the power increase of an engine is limited by the size of the single fixed pitch propeller, the quantum pitch synchronous reversal propeller group does not limit the power increase of the engine, the engine with higher power can be matched by adopting a plurality of fixed pitch propellers to form the quantum pitch synchronous reversal propeller group, the quantum pitch synchronous reversal propeller group formed by the plurality of fixed pitch propellers has more pitch types, can keep higher stable efficiency flight in a larger flight speed range, the projection parts of the rotating surfaces of two adjacent fixed pitch propellers on the horizontal plane are overlapped, the occupied space is reduced, the counter torque of the quantum pitch synchronous reversal propeller group is equivalent to a fixed pitch propeller rotating clockwise or equivalent to a fixed pitch propeller rotating clockwise, the wind-resistant and load-carrying helicopter is applied to a multi-shaft helicopter and the like, and the wind-resistant capability and load-carrying capability of the helicopter are improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is an oblique perspective view of a quantum pitch synchronous contra-rotating propeller set of the present invention, consisting of two fixed pitch propellers, the counter-torque equivalent being a clockwise rotating fixed pitch propeller.

Fig. 2 is an oblique perspective view of a quantum pitch synchronous contra-rotating propeller set of the present invention, consisting of two fixed pitch propellers, the counter-torque equivalent being a counter-clockwise rotating fixed pitch propeller.

Fig. 3 is an oblique perspective view of a quantum pitch synchronous contra-rotating propeller set of the present invention, consisting of three fixed pitch propellers, the counter-torque equivalent being a clockwise rotating fixed pitch propeller.

Fig. 4 is an oblique perspective view of a quantum pitch synchronous contra-rotating propeller set of the present invention, consisting of three fixed pitch propellers, the counter-torque equivalent being a counter-clockwise rotating fixed pitch propeller.

Fig. 5 is an oblique perspective view of an example of a quantum pitch synchronous contra-rotating propeller set of the present invention, consisting of three fixed-pitch propellers, applied to a multi-axis helicopter.

In the figure 1. a first pitch propeller using two blades, 2. a second pitch propeller using two blades, 3. a pitch propeller rotating clockwise, 4. a pitch propeller rotating counterclockwise, 5. a quantum pitch synchronous reverse propeller group whose reaction torque is equivalent to one pitch propeller rotating clockwise, 7. a rotation direction of a horizontal common drive shaft, 8. a horizontal common drive shaft, 9. a first vertical split shaft, 10. a second vertical split shaft, 11. an initial installation angle phase difference of two adjacent blades of two adjacent pitch propellers, 21. a third pitch propeller using two blades, 41. a motor driving the quantum pitch synchronous reverse propeller group on a front arm, 42. a motor driving the quantum pitch synchronous reverse propeller group on a rear arm, 43. a motor driving the quantum pitch synchronous reverse propeller group on a left arm, 45. a motor driving the set of quantum pitch synchronous contra-rotating propellers on the right arm, 55 a set of quantum pitch synchronous contra-rotating propellers whose reaction torque is equivalent to a counter-clockwise rotating pitch propeller, 61, a first horizontal bevel gear, 62, a second horizontal bevel gear, 63, a third horizontal bevel gear, 64, a first vertical bevel gear, 65, a second vertical bevel gear, 66, a third vertical bevel gear, 71, a front arm composed of a set of quantum pitch synchronous contra-rotating propellers whose reaction torque is equivalent to a counter-clockwise rotating pitch propeller, 72, a rear arm composed of a set of quantum pitch synchronous contra-rotating propellers whose reaction torque is equivalent to a counter-clockwise rotating pitch propeller, 73, a left arm composed of a set of quantum pitch synchronous contra-rotating propellers whose reaction torque is equivalent to a clockwise rotating pitch propeller, 74, a right arm composed of a set of quantum pitch synchronous contra-rotating propellers whose reaction torque is equivalent to a clockwise rotating pitch propeller, 88. the fuselage of the multiaxial helicopter, 91, the third vertical section, 99, the landing gear, 103, the first pitch propeller with three blades, 104, the first pitch propeller with four blades, 203, the second pitch propeller with three blades, 204, the second pitch propeller with four blades, 213, the third pitch propeller with three blades, 214, the third pitch propeller with four blades, s.

Detailed Description

In the embodiment shown in fig. 1, the upper diagram, the middle diagram and the lower diagram are included, the upper diagram is composed of two fixed pitch propellers of two blades, the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (5) of the fixed pitch propeller rotating clockwise, the middle diagram is composed of two fixed pitch propellers of three blades, the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (5) of the fixed pitch propeller rotating clockwise, the lower diagram is composed of two fixed pitch propellers of four blades, and the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (5) of the fixed pitch propeller rotating clockwise.

In the upper drawing of fig. 1, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a conical surface of the first horizontal bevel gear (61) is arranged to the left, a first vertical bevel gear (64) is arranged, a conical surface of the first vertical bevel gear (64) faces downwards, the right side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (1) adopting two blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate towards the reader direction from the paper surface in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate clockwise, the first pitch propellers (1) of the two blades are driven to rotate clockwise, and the first pitch propellers (1) of the two blades are pitch propellers (3) rotating clockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the left side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (2) adopting two blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate towards the reader from the paper surface in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate anticlockwise to drive the second fixed-pitch propellers (2) of the two blades to rotate anticlockwise, and the second fixed-pitch propellers (2) of the two blades are fixed-pitch propellers (4) rotating anticlockwise.

The number of teeth and the modulus of the second horizontal bevel gear (62) are the same as those of the first horizontal bevel gear (61), the number of teeth and the modulus of the first vertical bevel gear (64) are the same as those of the second vertical bevel gear (65), the moduli of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same as those of the first vertical bevel gear (64), the number of teeth is the same (or different from each other), when the vertical shaft rotates faster than the horizontal driving shaft, the number of teeth of the vertical bevel gear is smaller than that of the horizontal bevel gear, when the vertical shaft rotates slower than that of the horizontal driving shaft, the number of teeth of the vertical bevel gear is larger than that of the horizontal bevel gear, for drawing convenience, all bevel gears take the same number of teeth as an example), and the horizontal common driving shaft (8) drives the.

The diameter of the blade of the first fixed-pitch propeller (1) is the same as that of the blade of the second fixed-pitch propeller (2), and the pitch of the first fixed-pitch propeller (1) is greater than that of the second fixed-pitch propeller (2) (for example, the pitch of the first fixed-pitch propeller (1) is 10, and the pitch of the second fixed-pitch propeller (2) is 7). The distance that sets up first vertical minute axle (9) and vertical minute axle of second (10) is greater than the radius of first distance screw (1) and is less than the diameter of first distance screw (1), make the plane of rotation of first distance screw (1) and second distance screw (2) overlap at the projection part on horizontal plane, set up two adjacent paddle initial installation angle phase difference (11) of first distance screw (1) and second distance screw (2) to 90, because first distance screw (1) and second distance screw (2) synchronous reversal, so, even the plane of rotation of first distance screw (1) and second distance screw (2) overlaps at the projection part on horizontal plane, the paddle of first distance screw (1) and second distance screw (2) also can not collide with each other.

Because first pitch propeller (1) and the synchronous reversal of second pitch propeller (2), the reaction torque majority of first pitch propeller (1) and second pitch propeller (2) offsets each other, because the pitch of first pitch propeller (1) is greater than the pitch of second pitch propeller (2), so the reaction torque of first pitch propeller (1) is greater than the reaction torque of second pitch propeller (2), the partial reaction torque remains, the direction is the same with the reaction torque direction of first pitch propeller (1), because first pitch propeller (1) clockwise turns, so, the reaction torque equivalence of the synchronous reversal propeller group of quantum pitch in the upper drawing of figure 1 is the synchronous reversal propeller group of quantum pitch (5) of the pitch propeller that clockwise turns.

In the middle drawing of fig. 1, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a first vertical bevel gear (64) is arranged on the left side of the conical surface of the first horizontal bevel gear (61), the conical surface of the first vertical bevel gear (64) faces downwards, the right side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (103) adopting three blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate clockwise to drive the first pitch propellers (103) of the three blades to rotate clockwise, and the first pitch propellers (103) of the three blades are pitch propellers (3) rotating clockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the left side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (203) adopting three blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate anticlockwise to drive the second fixed-pitch propellers (203) of the three blades to rotate anticlockwise, and the second fixed-pitch propellers (203) of the three blades are fixed-pitch propellers (4) rotating anticlockwise.

As the number of teeth and the modulus of the second horizontal bevel gear (62) are the same as those of the first horizontal bevel gear (61), the number of teeth and the modulus of the first vertical bevel gear (64) and the second vertical bevel gear (65) are the same, the modulus and the number of teeth of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same, and the horizontal common driving shaft (8) drives the first fixed-pitch propellers (103) of the three blades and the second fixed-pitch propellers (203) of the three blades to synchronously rotate reversely.

The diameter of the blades of the first pitch propeller (103) is the same as the diameter of the blades of the second pitch propeller (203), and the pitch of the first pitch propeller (103) is greater than the pitch of the second pitch propeller (203) (for example, the pitch of the first pitch propeller (103) is 10, the pitch of the second pitch propeller (203) is 7, and the like). The distance between the first vertical split shaft (9) and the second vertical split shaft (10) is larger than the radius of the first fixed-distance propeller (103) and is smaller than the diameter of the first fixed-distance propeller (103), the projection parts of the rotating surfaces of the first fixed-distance propeller (103) and the second fixed-distance propeller (203) on the horizontal plane are overlapped, the initial installation angle phase difference (11) of two adjacent blades of the first fixed-distance propeller (103) and the second fixed-distance propeller (203) is set to be 60 degrees, and because the first fixed-distance propeller (103) and the second fixed-distance propeller (203) synchronously rotate reversely, even if the projection parts of the rotating surfaces of the first fixed-distance propeller (103) and the second fixed-distance propeller (203) on the horizontal plane are overlapped, the blades of the first fixed-distance propeller (103) and the second fixed-distance propeller (203) cannot collide with each.

Because the first pitch propeller (103) and the second pitch propeller (203) synchronously rotate reversely, most of the reaction torque of the first pitch propeller (103) and the second pitch propeller (203) are offset, because the pitch of the first pitch propeller (103) is greater than that of the second pitch propeller (203), the reaction torque of the first pitch propeller (103) is greater than that of the second pitch propeller (203), and the rest part of the reaction torque is in the same direction as that of the reaction torque of the first pitch propeller (103), and because the first pitch propeller (103) rotates clockwise, the reaction torque of the quantum pitch synchronous reverse propeller group in the middle diagram of fig. 1 is equivalent to that of the quantum pitch synchronous reverse propeller group (5) of the clockwise-rotating pitch propeller.

In the lower drawing of fig. 1, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a first vertical bevel gear (64) is arranged on the left of the conical surface of the first horizontal bevel gear (61), the conical surface of the first vertical bevel gear (64) faces downwards, the right of the conical surface of the first vertical bevel gear (64) is meshed with the upper part of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (104) adopting four blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate clockwise, the first pitch propellers (104) of the four blades are driven to rotate clockwise, and the first pitch propellers (104) of the four blades are pitch propellers (3) rotating clockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the left side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (204) with four blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate anticlockwise, the second fixed-pitch propellers (204) of the four blades are driven to rotate anticlockwise, and the second fixed-pitch propellers (204) of the four blades are fixed-pitch propellers (4) rotating anticlockwise.

Because the number of teeth and the modulus of the second horizontal bevel gear (62) are the same as those of the first horizontal bevel gear (61), the number of teeth and the modulus of the first vertical bevel gear (64) and the second vertical bevel gear (65) are the same, the modulus of the first horizontal bevel gear (61) is the same as that of the first vertical bevel gear (64), and the number of teeth of the first horizontal bevel gear (61) is the same as that of the first vertical bevel gear (64), the horizontal common driving shaft (8) drives the first fixed-pitch propellers (104) with four blades and the second fixed-pitch propellers (204) with four.

The diameter of the blades of the first pitch propeller (104) and the diameter of the blades of the second pitch propeller (204) are set to be the same, and the pitch of the first pitch propeller (104) is set to be greater than the pitch of the second pitch propeller (204) (for example, the pitch of the first pitch propeller (104) is set to 10, the pitch of the second pitch propeller (204) is set to 7, and the like). The distance between the first vertical split shaft (9) and the second vertical split shaft (10) is larger than the radius of the first fixed-distance propeller (104) and is smaller than the diameter of the first fixed-distance propeller (104), the projection parts of the rotating surfaces of the first fixed-distance propeller (104) and the second fixed-distance propeller (204) on the horizontal plane are overlapped, the initial installation angle phase difference (11) between two adjacent blades of the first fixed-distance propeller (104) and the second fixed-distance propeller (204) is set to be 45 degrees, and the first fixed-distance propeller (104) and the second fixed-distance propeller (204) synchronously rotate reversely, so that the blades of the first fixed-distance propeller (104) and the second fixed-distance propeller (204) cannot collide with each other even if the projection parts of the rotating surfaces of the first fixed-distance propeller (104) and the second fixed-distance propeller (204) on the horizontal plane are overlapped.

Because the first pitch propeller (104) and the second pitch propeller (204) synchronously rotate reversely, most of the reaction torque of the first pitch propeller (104) and the second pitch propeller (204) are offset, because the pitch of the first pitch propeller (104) is greater than that of the second pitch propeller (204), the reaction torque of the first pitch propeller (104) is greater than that of the second pitch propeller (204), and the rest part of the reaction torque is in the same direction as that of the first pitch propeller (104), and because the first pitch propeller (104) rotates clockwise, the reaction torque of the quantum pitch synchronous reverse propeller group in the lower diagram of fig. 1 is equivalent to the quantum pitch synchronous reverse propeller group (5) of the pitch propeller which rotates clockwise.

In the embodiment shown in fig. 2, the upper diagram, the middle diagram and the lower diagram are included, the upper diagram is composed of two fixed pitch propellers of two blades, the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (55) of the fixed pitch propeller rotating anticlockwise, the middle diagram is composed of two fixed pitch propellers of three blades, the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (55) of the fixed pitch propeller rotating anticlockwise, the lower diagram is composed of two fixed pitch propellers of four blades, and the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (55) of the fixed pitch propeller rotating anticlockwise.

In the upper drawing of fig. 2, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a first vertical bevel gear (64) is arranged on the left of the conical surface of the first horizontal bevel gear (61), the conical surface of the first vertical bevel gear (64) faces downwards, the right of the conical surface of the first vertical bevel gear (64) is meshed with the upper part of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (1) adopting two blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate anticlockwise to drive the first pitch propellers (1) of the two blades to rotate anticlockwise, and the first pitch propellers (1) of the two blades are pitch propellers (4) rotating anticlockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the left side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (2) adopting two blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate clockwise to drive the second fixed-pitch propellers (2) of the two blades to rotate clockwise, and the second fixed-pitch propellers (2) of the two blades are fixed-pitch propellers (3) rotating clockwise.

Because the number of teeth and the modulus of the second horizontal bevel gear (62) are the same as those of the first horizontal bevel gear (61), the number of teeth and the modulus of the first vertical bevel gear (64) and the second vertical bevel gear (65) are the same, the modulus and the number of teeth of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same, and the horizontal common driving shaft (8) drives the first fixed-pitch propeller (1) of the two blades and the second fixed-pitch propeller (2) of the second blade to synchronously rotate reversely.

The diameter of the blade of the first fixed-pitch propeller (1) is the same as that of the blade of the second fixed-pitch propeller (2), and the pitch of the first fixed-pitch propeller (1) is greater than that of the second fixed-pitch propeller (2) (for example, the pitch of the first fixed-pitch propeller (1) is 10, and the pitch of the second fixed-pitch propeller (2) is 7). The distance that sets up first vertical minute axle (9) and vertical minute axle of second (10) is greater than the radius of first distance screw (1) and is less than the diameter of first distance screw (1), make the plane of rotation of first distance screw (1) and second distance screw (2) overlap at the projection part on horizontal plane, set up two adjacent paddle initial installation angle phase difference (11) of first distance screw (1) and second distance screw (2) to 90, because first distance screw (1) and second distance screw (2) synchronous reversal, so, even the plane of rotation of first distance screw (1) and second distance screw (2) overlaps at the projection part on horizontal plane, the paddle of first distance screw (1) and second distance screw (2) also can not collide with each other.

Because first pitch propeller (1) and the synchronous reversal of second pitch propeller (2), the reaction torque majority of first pitch propeller (1) and second pitch propeller (2) offsets each other, because the pitch of first pitch propeller (1) is greater than the pitch of second pitch propeller (2), so the reaction torque of first pitch propeller (1) is greater than the reaction torque of second pitch propeller (2), the partial reaction torque remains, the direction is the same with the reaction torque direction of first pitch propeller (1), because first pitch propeller (1) anticlockwise rotation, so, the reaction torque equivalence of the synchronous reversal propeller group of quantum pitch in the upper graph of figure 2 is the synchronous reversal propeller group (55) of quantum pitch of the anticlockwise rotation pitch propeller.

In the middle drawing of fig. 2, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a first vertical bevel gear (64) is arranged on the left side of the conical surface of the first horizontal bevel gear (61), the conical surface of the first vertical bevel gear (64) faces downwards, the right side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (103) adopting three blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate anticlockwise to drive the first pitch propellers (103) of the three blades to rotate anticlockwise, and the first pitch propellers (103) of the three blades are pitch propellers (4) rotating anticlockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the left side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (203) adopting three blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate clockwise to drive the second fixed-pitch propellers (203) of the three blades to rotate clockwise, and the second fixed-pitch propellers (203) of the three blades are fixed-pitch propellers (3) rotating clockwise.

As the number of teeth and the modulus of the second horizontal bevel gear (62) are the same as those of the first horizontal bevel gear (61), the number of teeth and the modulus of the first vertical bevel gear (64) and the second vertical bevel gear (65) are the same, the modulus and the number of teeth of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same, and the horizontal common driving shaft (8) drives the first fixed-pitch propellers (103) of the three blades and the second fixed-pitch propellers (203) of the three blades to synchronously rotate reversely.

The diameter of the blades of the pitch propeller (103) is the same as the diameter of the blades of the second pitch propeller (203), and the pitch of the first pitch propeller (103) is greater than the pitch of the second pitch propeller (203) (for example, the pitch of the first pitch propeller (103) is 10, the pitch of the second pitch propeller (203) is 7, and the like). The distance between the first vertical split shaft (9) and the second vertical split shaft (10) is larger than the radius of the first fixed-distance propeller (103) and is smaller than the diameter of the first fixed-distance propeller (103), the projection parts of the rotating surfaces of the first fixed-distance propeller (103) and the second fixed-distance propeller (203) on the horizontal plane are overlapped, the initial installation angle phase difference (11) between two adjacent blades of the first fixed-distance propeller (103) and the second fixed-distance propeller (203) is set to be 60 degrees, and because the first fixed-distance propeller (103) and the second fixed-distance propeller (203) synchronously rotate reversely, even if the projection parts of the rotating surfaces of the first fixed-distance propeller (103) and the second fixed-distance propeller (203) on the horizontal plane are overlapped, the blades of the first fixed-distance propeller (103) and the second fixed-distance propeller (203) cannot collide with each other.

Because the first pitch propeller (103) and the second pitch propeller (203) synchronously rotate reversely, most of the reaction torque of the first pitch propeller (103) and the second pitch propeller (203) are offset, because the pitch of the first pitch propeller (103) is greater than that of the second pitch propeller (203), the reaction torque of the first pitch propeller (103) is greater than that of the second pitch propeller (203), and the rest part of the reaction torque is in the same direction as that of the first pitch propeller (103), and because the first pitch propeller (103) rotates anticlockwise, the reaction torque of the quantum pitch synchronous reverse propeller group in the middle diagram of fig. 2 is equivalent to that of the quantum pitch synchronous reverse propeller group (55) of the anticlockwise rotating pitch propeller.

In the lower drawing of fig. 2, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a first vertical bevel gear (64) is arranged on the left of the conical surface of the first horizontal bevel gear (61), the conical surface of the first vertical bevel gear (64) faces downwards, the right of the conical surface of the first vertical bevel gear (64) is meshed with the upper part of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (104) adopting four blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate anticlockwise to drive the first pitch propellers (104) of the four blades to rotate anticlockwise, and the first pitch propellers (104) of the four blades are pitch propellers (4) rotating anticlockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the left side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (204) with four blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate clockwise to drive the second fixed-pitch propellers (204) of the four blades to rotate clockwise, and the second fixed-pitch propellers (204) of the four blades are fixed-pitch propellers (3) rotating clockwise.

Because the number of teeth and the modulus of the second horizontal bevel gear (62) are the same as those of the first horizontal bevel gear (61), the number of teeth and the modulus of the first vertical bevel gear (64) and the second vertical bevel gear (65) are the same, the modulus and the number of teeth of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same, and the horizontal common driving shaft (8) drives the first pitch propeller (104) and the second pitch propeller (204) to synchronously rotate reversely.

The diameter of the blades of the first pitch propeller (104) and the diameter of the blades of the second pitch propeller (204) are set to be the same, and the pitch of the first pitch propeller (104) is set to be greater than the pitch of the second pitch propeller (204) (for example, the pitch of the first pitch propeller (104) is set to 10, the pitch of the second pitch propeller (204) is set to 7, and the like). The distance between the first vertical split shaft (9) and the second vertical split shaft (10) is larger than the radius of the first fixed-distance propeller (104) and is smaller than the diameter of the first fixed-distance propeller (104), the projection parts of the rotating surfaces of the first fixed-distance propeller (104) and the second fixed-distance propeller (204) on the horizontal plane are overlapped, the initial installation angle phase difference (11) between two adjacent blades of the first fixed-distance propeller (104) and the second fixed-distance propeller (204) is set to be 45 degrees, and the first fixed-distance propeller (104) and the second fixed-distance propeller (204) synchronously rotate reversely, so that the blades of the first fixed-distance propeller (104) and the second fixed-distance propeller (204) cannot collide with each other even if the projection parts of the rotating surfaces of the first fixed-distance propeller (104) and the second fixed-distance propeller (204) on the horizontal plane are overlapped.

Because the first pitch propeller (104) and the second pitch propeller (204) synchronously rotate reversely, most of the reaction torque of the first pitch propeller (104) and the second pitch propeller (204) are offset, because the pitch of the first pitch propeller (104) is greater than that of the second pitch propeller (204), the reaction torque of the first pitch propeller (104) is greater than that of the second pitch propeller (204), and the rest part of the reaction torque is in the same direction as that of the first pitch propeller (104), and because the first pitch propeller (104) rotates anticlockwise, the reaction torque of the quantum pitch synchronous reverse propeller group in the lower diagram of fig. 2 is equivalent to that of the quantum pitch synchronous reverse propeller group (55) of the anticlockwise rotating pitch propeller.

In the embodiment shown in fig. 3, the upper diagram, the middle diagram and the lower diagram are included, the upper diagram is composed of three fixed-pitch propellers with two blades, the counter-torque is equivalent to a quantum pitch synchronous reversal propeller group (5) of the fixed-pitch propeller rotating clockwise, the middle diagram is composed of three fixed-pitch propellers with three blades, the counter-torque is equivalent to a quantum pitch synchronous reversal propeller group (5) of the fixed-pitch propeller rotating clockwise, the lower diagram is composed of three fixed-pitch propellers with four blades, and the counter-torque is equivalent to a quantum pitch synchronous reversal propeller group (5) of the fixed-pitch propeller rotating clockwise.

In the upper drawing of fig. 3, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a conical surface of the first horizontal bevel gear (61) is arranged to the right, a first vertical bevel gear (64) is arranged, a conical surface of the first vertical bevel gear (64) is downward, the left side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (1) adopting two blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate clockwise to drive the first pitch propellers (1) of the two blades to rotate clockwise, and the first pitch propellers (1) of the two blades are pitch propellers (3) rotating clockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the right side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (2) adopting two blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate anticlockwise to drive the second fixed-pitch propellers (2) of the two blades to rotate anticlockwise, and the second fixed-pitch propellers (2) of the two blades are fixed-pitch propellers (4) rotating anticlockwise.

The third horizontal bevel gear (63) and the second horizontal bevel gear (62) are installed on a right horizontal common driving shaft (8) of the second horizontal bevel gear (62) in a mirror image mode, a third vertical bevel gear (66) is arranged, the conical surface of the third vertical bevel gear (66) faces downwards, the left side of the conical surface of the third vertical bevel gear (66) is meshed with the upper side of the conical surface of the third horizontal bevel gear (63), the third vertical bevel gear (66) is connected with a third vertical split shaft (91), and a third fixed-pitch propeller (21) adopting two blades is installed on the third vertical split shaft (91).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the third horizontal bevel gear (63) drives the third vertical bevel gear (66) to rotate clockwise to drive the third fixed-pitch propellers (21) of the two blades to rotate clockwise, and the third fixed-pitch propellers (21) of the two blades are fixed-pitch propellers (3) rotating clockwise.

The third horizontal bevel gear (63), the second horizontal bevel gear (62), the number of teeth and the modulus of the first horizontal bevel gear (61) are the same, the first vertical bevel gear (64), the second vertical bevel gear (65), the number of teeth and the modulus of the third vertical bevel gear (66) are the same, the modulus of the first horizontal bevel gear (61) and the modulus of the first vertical bevel gear (64) are the same, the number of teeth is the same (or different), when the vertical shaft rotates faster than the horizontal driving shaft, the number of teeth of the vertical bevel gear is smaller than that of the horizontal bevel gear, when the vertical shaft rotates slower than that of the horizontal driving shaft, the number of teeth of the vertical bevel gear is larger than that of the horizontal bevel gear, for convenience of drawing, all bevel gears take the same number of teeth as an example), the horizontal common driving shaft (8) drives the first pitch propeller (1) of the two blades and the second pitch propeller (2), The second pitch propellers (2) of the two blades and the third pitch propellers (21) of the two blades rotate reversely in synchronism.

The pitch that sets up first distance screw (1) of two paddles, second distance screw (2) of two paddles and third distance screw (21) of two paddles is the same, the pitch that sets up first distance screw (1) of two paddles is greater than the pitch of second distance screw (2) of two paddles, the pitch that the pitch of second distance screw (2) of two paddles is greater than the pitch of third distance screw (21) of two paddles (for example, the pitch that sets up first distance screw (1) of two paddles is 11, the pitch that sets up second distance screw (2) of two paddles is 8, the pitch that sets up third distance screw (21) of two paddles is 5 etc.).

The radius of a first distance propeller (1) with a first vertical sub-shaft (9) and a second vertical sub-shaft (10) is smaller than the diameter of the first distance propeller (1) with two blades, the projection parts of the rotating surfaces of the first distance propeller (1) with two blades and the second distance propeller (2) with two blades on the horizontal plane are overlapped, the distance of the second vertical sub-shaft (10) and a third vertical sub-shaft (91) is equal to the distance of the first vertical sub-shaft (9) and the second vertical sub-shaft (10), and the projection parts of the rotating surfaces of the second distance propeller (2) with two blades and the third distance propeller (21) with two blades on the horizontal plane are overlapped.

The initial installation angle phase difference (11) of two adjacent blades of a first fixed-pitch propeller (1) of two blades and a second fixed-pitch propeller (2) of two blades is set to be 90 degrees, and because the first fixed-pitch propeller (1) of two blades and the second fixed-pitch propeller (2) of two blades synchronously rotate reversely, even if the projection parts of the rotating surfaces of the first fixed-pitch propeller (1) of two blades and the second fixed-pitch propeller (2) of two blades on the horizontal plane are overlapped, the blades of the first fixed-pitch propeller (1) of two blades and the second fixed-pitch propeller (2) of two blades cannot collide with each other, the initial installation angle phase difference (11) of two adjacent blades of the second fixed-pitch propeller (2) of two blades and the third fixed-pitch propeller (21) of two blades is set to be 90 degrees, because the second fixed-pitch propeller (2) of two blades and the third fixed-pitch propeller (21) of two blades synchronously rotate reversely, therefore, even if the projection parts of the rotating surfaces of the second pitch propellers (2) and the third pitch propellers (21) of the two blades on the horizontal plane are overlapped, the blades of the second pitch propellers (2) and the third pitch propellers (21) of the two blades do not collide with each other.

Because the first pitch propellers (1) of the two blades and the second pitch propellers (2) of the two blades synchronously rotate reversely, the reactive torques of the first pitch propellers (1) of the two blades and the second pitch propellers (2) of the two blades are mostly offset, because the pitch of the first pitch propellers (1) of the two blades is greater than the pitch of the second pitch propellers (2) of the two blades, the reactive torque of the first pitch propellers (1) of the two blades is greater than the reactive torque of the second pitch propellers (2) of the two blades, part of the reactive torque is remained, the direction is the same as the direction of the reactive torque of the first pitch propellers (1) of the two blades, in addition, the reactive torque of the third pitch propellers (21) of the two blades is not offset, because the first pitch propellers (1) of the two blades and the third pitch propellers (21) of the two blades rotate clockwise, therefore, the counter-torque of the quantum pitch synchronous contra-rotating propeller group in the upper diagram of fig. 3 is equivalent to the quantum pitch synchronous contra-rotating propeller group (5) of the fixed pitch propeller rotating clockwise.

In the middle drawing of fig. 3, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a first vertical bevel gear (64) is arranged on the conical surface of the first horizontal bevel gear (61) towards the right, the conical surface of the first vertical bevel gear (64) faces downwards, the left side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (103) adopting three blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate clockwise to drive the first pitch propellers (103) of the three blades to rotate clockwise, and the first pitch propellers (103) of the three blades are pitch propellers (3) rotating clockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the right side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (203) adopting three blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate anticlockwise to drive the second fixed-pitch propellers (203) of the three blades to rotate anticlockwise, and the second fixed-pitch propellers (203) of the three blades are fixed-pitch propellers (4) rotating anticlockwise.

The third horizontal bevel gear (63) and the second horizontal bevel gear (62) are installed on a right horizontal common driving shaft (8) of the second horizontal bevel gear (62) in a mirror image mode, a third vertical bevel gear (66) is arranged, the conical surface of the third vertical bevel gear (66) faces downwards, the left side of the conical surface of the third vertical bevel gear (66) is meshed with the upper side of the conical surface of the third horizontal bevel gear (63), the third vertical bevel gear (66) is connected with a third vertical sub-shaft (91), and a third fixed-pitch propeller (213) adopting three blades is installed on the third vertical sub-shaft (91).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the third horizontal bevel gear (63) drives the third vertical bevel gear (66) to rotate clockwise, the third fixed-pitch propellers (213) of the three blades are driven to rotate clockwise, and the third fixed-pitch propellers (213) of the three blades are fixed-pitch propellers (3) rotating clockwise.

Because the number of teeth and the modulus of the third horizontal bevel gear (63), the second horizontal bevel gear (62) and the first horizontal bevel gear (61) are the same, the number of teeth and the modulus of the first vertical bevel gear (64), the second vertical bevel gear (65) and the third vertical bevel gear (66) are the same, the modulus and the modulus of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same, the horizontal common driving shaft (8) drives the first pitch propeller (103) of the three blades and the second pitch propeller (203) of the three blades to synchronously rotate reversely, and the second pitch propeller (203) of the three blades and the third pitch propeller (213) of the three blades to synchronously rotate reversely.

The diameters of the blades of the first fixed-pitch propeller (103) with three blades, the second fixed-pitch propeller (203) with three blades and the third fixed-pitch propeller (213) with three blades are the same, the pitch of the first fixed-pitch propeller (103) with three blades is larger than that of the second fixed-pitch propeller (203) with three blades, and the pitch of the second fixed-pitch propeller (203) with three blades is larger than that of the third fixed-pitch propeller (213) with three blades.

The radius of a first distance propeller (103) with a first vertical sub-shaft (9) and a second vertical sub-shaft (10) which are arranged at a distance larger than three blades is smaller than the diameter of the first distance propeller (103) with three blades, the projection parts of the rotating surfaces of the first distance propeller (103) with three blades and the second distance propeller (203) with three blades on the horizontal plane are overlapped, the distance of the second vertical sub-shaft (10) and the third vertical sub-shaft (91) is equal to the distance of the first vertical sub-shaft (9) and the second vertical sub-shaft (10), and the projection parts of the rotating surfaces of the second distance propeller (203) with three blades and the third distance propeller (213) with three blades on the horizontal plane are overlapped.

The initial installation angle phase difference (11) between two adjacent blades of the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) is set to be 60 degrees, and because the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) synchronously rotate reversely, even if the projection parts of the rotating surfaces of the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) on the horizontal plane are overlapped, the blades of the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) cannot collide with each other, the initial installation angle phase difference (11) between two adjacent blades of the three-blade second pitch propeller (203) and the three-blade third pitch propeller (213) is set to be 60 degrees, because the three-blade second pitch propeller (203) and the three-blade third pitch propeller (213) synchronously rotate reversely, therefore, even if the projection surfaces of the third pitch propeller (203) and the third pitch propeller (213) overlap in the horizontal plane, the blades of the third pitch propeller (203) and the third pitch propeller (213) do not collide with each other.

Since the three-bladed first pitch propeller (103) and the three-bladed second pitch propeller (203) are synchronously counter-rotating, the reaction torques of the three-bladed first pitch propeller (103) and the three-bladed second pitch propeller (203) are mostly cancelled out, since the pitch of the three-bladed first pitch propeller (103) is greater than the pitch of the three-bladed second pitch propeller (203), the reaction torque of the three-bladed first pitch propeller (103) is greater than the reaction torque of the three-bladed second pitch propeller (203), leaving a portion of the reaction torque in the same direction as the reaction torque of the three-bladed first pitch propeller (103), and further, the reaction torque of the three-bladed third pitch propeller (213) is not cancelled out, since both the three-bladed first pitch propeller (103) and the three-bladed third pitch propeller (213) are rotating clockwise, the counter-torque of the quantum pitch synchronous contra-rotating propeller set in the middle diagram of fig. 3 is equivalent to the quantum pitch synchronous contra-rotating propeller set (5) of the fixed pitch propeller rotating clockwise.

In the lower drawing of fig. 3, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a conical surface of the first horizontal bevel gear (61) is arranged to the right, a first vertical bevel gear (64) is arranged, a conical surface of the first vertical bevel gear (64) is downward, the left side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (104) adopting four blades is installed on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate clockwise to drive the first pitch propellers (104) of the four blades to rotate clockwise, and the first pitch propellers (104) of the four blades are pitch propellers (3) rotating clockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the right side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (204) with four blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate anticlockwise to drive the second fixed-pitch propellers (204) of the four blades to rotate anticlockwise, and the second fixed-pitch propellers (204) of the four blades are fixed-pitch propellers (4) rotating anticlockwise.

The third horizontal bevel gear (63) and the second horizontal bevel gear (62) are installed on a right horizontal common driving shaft (8) of the second horizontal bevel gear (62) in a mirror image mode, a third vertical bevel gear (66) is arranged, the conical surface of the third vertical bevel gear (66) faces downwards, the left side of the conical surface of the third vertical bevel gear (66) is meshed with the upper side of the conical surface of the third horizontal bevel gear (63), the third vertical bevel gear (66) is connected with a third vertical sub-shaft (91), and a third fixed-pitch propeller (214) with four blades is installed on the third vertical sub-shaft (91).

Because the horizontal common driving shaft (8) is driven to rotate towards the direction in the paper by a reader in the rotating direction (7) of the horizontal common driving shaft, the third horizontal bevel gear (63) drives the third vertical bevel gear (66) to rotate clockwise, the third fixed-pitch propellers (214) of the four blades are driven to rotate clockwise, and the third fixed-pitch propellers (214) of the four blades are fixed-pitch propellers (3) rotating clockwise.

Because the number of teeth and the modulus of the third horizontal bevel gear (63), the second horizontal bevel gear (62) and the first horizontal bevel gear (61) are the same, the number of teeth and the modulus of the first vertical bevel gear (64), the second vertical bevel gear (65) and the third vertical bevel gear (66) are the same, the modulus and the modulus of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same, the horizontal common driving shaft (8) drives the first pitch propeller (104) of the four blades and the second pitch propeller (204) of the four blades to synchronously rotate reversely, and the second pitch propeller (204) of the four blades and the third pitch propeller (214) of the four blades to synchronously rotate reversely.

The diameters of the blades of the first fixed-pitch propeller (104) with four blades, the second fixed-pitch propeller (204) with four blades and the third fixed-pitch propeller (214) with four blades are the same, the pitch of the first fixed-pitch propeller (104) with four blades is larger than that of the second fixed-pitch propeller (204) with four blades, and the pitch of the second fixed-pitch propeller (204) with four blades is larger than that of the third fixed-pitch propeller (214) with four blades.

The radius of a first distance propeller (104) with four blades is smaller than the diameter of the first distance propeller (104) with four blades when the distance between the first vertical split shaft (9) and the second vertical split shaft (10) is set, the projection parts of the rotating surfaces of the first distance propeller (104) with four blades and the second distance propeller (204) with four blades on the horizontal plane are overlapped, the distance between the second vertical split shaft (10) and the third vertical split shaft (91) is set to be equal to the distance between the first vertical split shaft (9) and the second vertical split shaft (10), and the projection parts of the rotating surfaces of the second distance propeller (204) with four blades and the third distance propeller (214) with four blades on the horizontal plane are overlapped.

The initial installation angle phase difference (11) between two adjacent blades of a first fixed-pitch propeller (104) of the four blades and a second fixed-pitch propeller (204) of the four blades is set to be 45 degrees, and because the first fixed-pitch propeller (104) of the four blades and the second fixed-pitch propeller (204) of the four blades synchronously rotate reversely, even if the projection parts of the rotating surfaces of the first fixed-pitch propeller (104) of the four blades and the second fixed-pitch propeller (204) of the four blades on the horizontal plane are overlapped, the blades of the first fixed-pitch propeller (104) of the four blades and the second fixed-pitch propeller (204) of the four blades do not collide with each other, the initial installation angle phase difference (11) between two adjacent blades of the second fixed-pitch propeller (204) of the four blades and the third fixed-pitch propeller (214) of the four blades is set to be 45 degrees, because the second fixed-pitch propeller (204) of the four blades and the third fixed-pitch propeller (214) of, therefore, even if the projection surfaces of the second pitch propeller (204) of the four blades and the third pitch propeller (214) of the four blades on the horizontal plane are partially overlapped, the blades of the second pitch propeller (204) of the four blades and the third pitch propeller (214) of the four blades do not collide with each other.

Since the first pitch propeller (104) of the four blades and the second pitch propeller (204) of the four blades are synchronously rotated reversely, the reaction torques of the first pitch propeller (104) of the four blades and the second pitch propeller (204) of the four blades are mostly offset each other, since the pitch of the first pitch propeller (104) of the four blades is greater than the pitch of the second pitch propeller (204) of the four blades, the reaction torque of the first pitch propeller (104) of the four blades is greater than the reaction torque of the second pitch propeller (204) of the four blades, and a part of the reaction torque is left, the direction is the same as the direction of the reaction torque of the first pitch propeller (104) of the four blades, and in addition, the reaction torque of the third pitch propeller (214) of the four blades is not offset, since the first pitch propeller (104) of the four blades and the third pitch propeller (214) of the four blades are both rotated clockwise, so that, the counter-torque of the quantum pitch synchronous contra-rotating propeller set in the lower diagram of fig. 3 is equivalent to the quantum pitch synchronous contra-rotating propeller set (5) of the fixed pitch propeller rotating clockwise.

In the embodiment shown in fig. 4, the upper diagram, the middle diagram and the lower diagram are included, the upper diagram is composed of three fixed-pitch propellers with two blades, the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (55) of the fixed-pitch propeller rotating anticlockwise, the middle diagram is composed of three fixed-pitch propellers with three blades, the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (55) of the fixed-pitch propeller rotating anticlockwise, the lower diagram is composed of three fixed-pitch propellers with four blades, and the reaction torque is equivalent to a quantum pitch synchronous reversal propeller group (55) of the fixed-pitch propeller rotating anticlockwise.

In the upper drawing of fig. 4, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a conical surface of the first horizontal bevel gear (61) is arranged to the right, a first vertical bevel gear (64) is arranged, a conical surface of the first vertical bevel gear (64) is downward, the left side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (1) adopting two blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate towards the reader from the paper surface in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate anticlockwise to drive the first pitch propellers (1) of the two blades to rotate anticlockwise, and the first pitch propellers (1) of the two blades are pitch propellers (4) rotating anticlockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the right side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (2) adopting two blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate towards the reader from the paper surface in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate clockwise, the second fixed-pitch propellers (2) of the two blades are driven to rotate clockwise, and the second fixed-pitch propellers (2) of the two blades are fixed-pitch propellers (3) rotating clockwise.

The third horizontal bevel gear (63) and the second horizontal bevel gear (62) are installed on a right horizontal common driving shaft (8) of the second horizontal bevel gear (62) in a mirror image mode, a third vertical bevel gear (66) is arranged, the conical surface of the third vertical bevel gear (66) faces downwards, the left side of the conical surface of the third vertical bevel gear (66) is meshed with the upper side of the conical surface of the third horizontal bevel gear (63), the third vertical bevel gear (66) is connected with a third vertical sub-shaft (91), and a third fixed-pitch propeller (21) adopting two blades is installed on the third vertical sub-shaft (91).

Because the horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the third horizontal bevel gear (63) drives the third vertical bevel gear (66) to rotate anticlockwise to drive the third fixed-pitch propellers (21) of the two blades to rotate anticlockwise, and the third fixed-pitch propellers (21) of the two blades are fixed-pitch propellers (4) rotating anticlockwise.

The third horizontal bevel gear (63), the second horizontal bevel gear (62), the number of teeth and the modulus of the first horizontal bevel gear (61) are the same, the first vertical bevel gear (64), the second vertical bevel gear (65), the number of teeth and the modulus of the third vertical bevel gear (66) are the same, the modulus of the first horizontal bevel gear (61) and the modulus of the first vertical bevel gear (64) are the same, the number of teeth is the same (or different), when the vertical shaft rotates faster than the horizontal driving shaft, the number of teeth of the vertical bevel gear is smaller than that of the horizontal bevel gear, when the vertical shaft rotates slower than that of the horizontal driving shaft, the number of teeth of the vertical bevel gear is larger than that of the horizontal bevel gear, for convenience of drawing, all bevel gears take the same number of teeth as an example), the horizontal common driving shaft (8) drives the first pitch propeller (1) of the two blades and the second pitch propeller (2), The second pitch propellers (2) of the two blades and the third pitch propellers (21) of the two blades rotate reversely in synchronism.

The pitch that sets up first distance screw (1) of two paddles, second distance screw (2) of two paddles and third distance screw (21) of two paddles is the same, the pitch that sets up first distance screw (1) of two paddles is greater than the pitch of second distance screw (2) of two paddles, the pitch that the pitch of second distance screw (2) of two paddles is greater than the pitch of third distance screw (21) of two paddles (for example, the pitch that sets up first distance screw (1) of two paddles is 11, the pitch that sets up second distance screw (2) of two paddles is 8, the pitch that sets up third distance screw (21) of two paddles is 5 etc.).

The radius of a first distance propeller (1) with a first vertical sub-shaft (9) and a second vertical sub-shaft (10) is smaller than the diameter of the first distance propeller (1) with two blades, the projection parts of the rotating surfaces of the first distance propeller (1) with two blades and the second distance propeller (2) with two blades on the horizontal plane are overlapped, the distance of the second vertical sub-shaft (10) and a third vertical sub-shaft (91) is equal to the distance of the first vertical sub-shaft (9) and the second vertical sub-shaft (10), and the projection parts of the rotating surfaces of the second distance propeller (2) with two blades and the third distance propeller (21) with two blades on the horizontal plane are overlapped.

The initial installation angle phase difference (11) of two adjacent blades of a first fixed-pitch propeller (1) of two blades and a second fixed-pitch propeller (2) of two blades is set to be 90 degrees, and because the first fixed-pitch propeller (1) of two blades and the second fixed-pitch propeller (2) of two blades synchronously rotate reversely, even if the projection parts of the rotating surfaces of the first fixed-pitch propeller (1) of two blades and the second fixed-pitch propeller (2) of two blades on the horizontal plane are overlapped, the blades of the first fixed-pitch propeller (1) of two blades and the second fixed-pitch propeller (2) of two blades cannot collide with each other, the initial installation angle phase difference (11) of two adjacent blades of the second fixed-pitch propeller (2) of two blades and the third fixed-pitch propeller (21) of two blades is set to be 90 degrees, because the second fixed-pitch propeller (2) of two blades and the third fixed-pitch propeller (21) of two blades synchronously rotate reversely, therefore, even if the projection parts of the rotating surfaces of the second pitch propellers (2) and the third pitch propellers (21) of the two blades on the horizontal plane are overlapped, the blades of the second pitch propellers (2) and the third pitch propellers (21) of the two blades do not collide with each other.

Because the first pitch propellers (1) of the two blades and the second pitch propellers (2) of the two blades synchronously rotate reversely, most of the reactive torques of the first pitch propellers (1) of the two blades and the second pitch propellers (2) of the two blades are offset, because the pitch of the first pitch propellers (1) of the two blades is greater than that of the second pitch propellers (2) of the two blades, the reactive torque of the first pitch propellers (1) of the two blades is greater than that of the second pitch propellers (2) of the two blades, part of the reactive torque is remained, the direction is the same as that of the reactive torque of the first pitch propellers (1) of the two blades, in addition, the reactive torque of the third pitch propellers (21) of the two blades is not offset, because the first pitch propellers (1) of the two blades and the third pitch propellers (21) of the two blades rotate anticlockwise, therefore, the counter torque of the quantum pitch synchronous contra-rotating propeller group in the upper diagram of fig. 4 is equivalent to the quantum pitch synchronous contra-rotating propeller group (55) of the counter-clockwise rotating fixed pitch propeller.

In the middle drawing of fig. 4, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a first vertical bevel gear (64) is arranged on the conical surface of the first horizontal bevel gear (61) towards the right, the conical surface of the first vertical bevel gear (64) faces downwards, the left side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (103) adopting three blades is arranged on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate anticlockwise to drive the first pitch propellers (103) of the three blades to rotate anticlockwise, and the first pitch propellers (103) of the three blades are pitch propellers (4) rotating anticlockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the right side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (203) adopting three blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate clockwise, the second fixed-pitch propellers (203) of the three blades are driven to rotate clockwise, and the second fixed-pitch propellers (203) of the three blades are fixed-pitch propellers (3) rotating clockwise.

The third horizontal bevel gear (63) and the second horizontal bevel gear (62) are installed on a right horizontal common driving shaft (8) of the second horizontal bevel gear (62) in a mirror image mode, a third vertical bevel gear (66) is arranged, the conical surface of the third vertical bevel gear (66) faces downwards, the left side of the conical surface of the third vertical bevel gear (66) is meshed with the upper side of the conical surface of the third horizontal bevel gear (63), the third vertical bevel gear (66) is connected with a third vertical sub-shaft (91), and a third fixed-pitch propeller (213) adopting three blades is installed on the third vertical sub-shaft (91).

Because the horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the third horizontal bevel gear (63) drives the third vertical bevel gear (66) to rotate anticlockwise to drive the third fixed-pitch propellers (213) of the three blades to rotate anticlockwise, and the third fixed-pitch propellers (213) of the three blades are fixed-pitch propellers (4) rotating anticlockwise.

Because the number of teeth and the modulus of the third horizontal bevel gear (63), the second horizontal bevel gear (62) and the first horizontal bevel gear (61) are the same, the number of teeth and the modulus of the first vertical bevel gear (64), the second vertical bevel gear (65) and the third vertical bevel gear (66) are the same, the modulus and the modulus of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same, the horizontal common driving shaft (8) drives the first pitch propeller (103) of the three blades and the second pitch propeller (203) of the three blades to synchronously rotate reversely, and the second pitch propeller (203) of the three blades and the third pitch propeller (213) of the three blades to synchronously rotate reversely.

The diameters of the blades of the first fixed-pitch propeller (103) with three blades, the second fixed-pitch propeller (203) with three blades and the third fixed-pitch propeller (213) with three blades are the same, the pitch of the first fixed-pitch propeller (103) with three blades is larger than that of the second fixed-pitch propeller (203) with three blades, and the pitch of the second fixed-pitch propeller (203) with three blades is larger than that of the third fixed-pitch propeller (213) with three blades.

The radius of a first distance propeller (103) with a first vertical sub-shaft (9) and a second vertical sub-shaft (10) which are arranged at a distance larger than three blades is smaller than the diameter of the first distance propeller (103) with three blades, the projection parts of the rotating surfaces of the first distance propeller (103) with three blades and the second distance propeller (203) with three blades on the horizontal plane are overlapped, the distance of the second vertical sub-shaft (10) and the third vertical sub-shaft (91) is equal to the distance of the first vertical sub-shaft (9) and the second vertical sub-shaft (10), and the projection parts of the rotating surfaces of the second distance propeller (203) with three blades and the third distance propeller (213) with three blades on the horizontal plane are overlapped.

The initial installation angle phase difference (11) between two adjacent blades of the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) is set to be 60 degrees, and because the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) synchronously rotate reversely, even if the projection parts of the rotating surfaces of the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) on the horizontal plane are overlapped, the blades of the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) cannot collide with each other, the initial installation angle phase difference (11) between two adjacent blades of the three-blade second pitch propeller (203) and the three-blade third pitch propeller (213) is set to be 60 degrees, because the three-blade second pitch propeller (203) and the three-blade third pitch propeller (213) synchronously rotate reversely, therefore, even if the projection surfaces of the third pitch propeller (203) and the third pitch propeller (213) overlap in the horizontal plane, the blades of the third pitch propeller (203) and the third pitch propeller (213) do not collide with each other.

Since the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) are synchronously rotated reversely, the reaction torques of the three-blade first pitch propeller (103) and the three-blade second pitch propeller (203) are mostly offset each other, since the pitch of the three-blade first pitch propeller (103) is greater than the pitch of the three-blade second pitch propeller (203), the reaction torque of the three-blade first pitch propeller (103) is greater than the reaction torque of the three-blade second pitch propeller (203), and a part of the reaction torque remains, and the direction is the same as the direction of the reaction torque of the three-blade first pitch propeller (103), and further, the reaction torque of the three-blade third pitch propeller (213) is not offset, since the three-blade first pitch propeller (103) and the three-blade third pitch propeller (213) are both rotated counterclockwise, the counter-torque of the quantum pitch synchronous contra-rotating propeller set in the middle diagram of fig. 4 is equivalent to the quantum pitch synchronous contra-rotating propeller set (55) of the counter-clockwise rotating fixed pitch propeller.

In the lower drawing of fig. 4, a first horizontal bevel gear (61) is arranged on a horizontal common driving shaft (8), a conical surface of the first horizontal bevel gear (61) is arranged to the right, a first vertical bevel gear (64) is arranged, a conical surface of the first vertical bevel gear (64) is downward, the left side of the conical surface of the first vertical bevel gear (64) is meshed with the upper side of the conical surface of the first horizontal bevel gear (61), the first vertical bevel gear (64) is connected with a first vertical sub-shaft (9), and a first pitch propeller (104) adopting four blades is installed on the first vertical sub-shaft (9).

The horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the first horizontal bevel gear (61) drives the first vertical bevel gear (64) to rotate anticlockwise to drive the first pitch propellers (104) of the four blades to rotate anticlockwise, and the first pitch propellers (104) of the four blades are pitch propellers (4) rotating anticlockwise.

The second horizontal bevel gear (62) and the first horizontal bevel gear (61) are installed on a right horizontal common driving shaft (8) of the first horizontal bevel gear (61) in a mirror image mode, a second vertical bevel gear (65) is arranged, the conical surface of the second vertical bevel gear (65) faces downwards, the right side of the conical surface of the second vertical bevel gear (65) is meshed with the upper side of the conical surface of the second horizontal bevel gear (62), the second vertical bevel gear (65) is connected with a second vertical sub-shaft (10), and a second fixed-pitch propeller (204) with four blades is installed on the second vertical sub-shaft (10).

Because the horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the second horizontal bevel gear (62) drives the second vertical bevel gear (65) to rotate clockwise, the second fixed-pitch propellers (204) of the four blades are driven to rotate clockwise, and the second fixed-pitch propellers (204) of the four blades are fixed-pitch propellers (3) rotating clockwise.

The third horizontal bevel gear (63) and the second horizontal bevel gear (62) are installed on a right horizontal common driving shaft (8) of the second horizontal bevel gear (62) in a mirror image mode, a third vertical bevel gear (66) is arranged, the conical surface of the third vertical bevel gear (66) faces downwards, the left side of the conical surface of the third vertical bevel gear (66) is meshed with the upper side of the conical surface of the third horizontal bevel gear (63), the third vertical bevel gear (66) is connected with a third vertical sub-shaft (91), and a third fixed-pitch propeller (214) with four blades is installed on the third vertical sub-shaft (91).

Because the horizontal common driving shaft (8) is driven to rotate from the paper surface to the reader direction in the rotating direction (7) of the horizontal common driving shaft, the third horizontal bevel gear (63) drives the third vertical bevel gear (66) to rotate anticlockwise to drive the third fixed-pitch propellers (214) of the four blades to rotate anticlockwise, and the third fixed-pitch propellers (214) of the four blades are fixed-pitch propellers (4) rotating anticlockwise.

Because the number of teeth and the modulus of the third horizontal bevel gear (63), the second horizontal bevel gear (62) and the first horizontal bevel gear (61) are the same, the number of teeth and the modulus of the first vertical bevel gear (64), the second vertical bevel gear (65) and the third vertical bevel gear (66) are the same, the modulus and the modulus of the first horizontal bevel gear (61) and the first vertical bevel gear (64) are the same, the horizontal common driving shaft (8) drives the first pitch propeller (104) of the four blades and the second pitch propeller (204) of the four blades to synchronously rotate reversely, and the second pitch propeller (204) of the four blades and the third pitch propeller (214) of the four blades to synchronously rotate reversely.

The four-blade pitch propeller (104), the four-blade pitch propeller (204) and the four-blade pitch propeller (214) are arranged to have the same blade diameter, the pitch of the first pitch propeller (104) is larger than the pitch of the second pitch propeller (204) and the pitch of the second pitch propeller (204) is larger than the pitch of the third pitch propeller (214).

The radius of a first distance propeller (104) with four blades is smaller than the diameter of the first distance propeller (104) with four blades when the distance between the first vertical split shaft (9) and the second vertical split shaft (10) is set, the projection parts of the rotating surfaces of the first distance propeller (104) with four blades and the second distance propeller (204) with four blades on the horizontal plane are overlapped, the distance between the second vertical split shaft (10) and the third vertical split shaft (91) is set to be equal to the distance between the first vertical split shaft (9) and the second vertical split shaft (10), and the projection parts of the rotating surfaces of the second distance propeller (204) with four blades and the third distance propeller (214) with four blades on the horizontal plane are overlapped.

The initial installation angle phase difference (11) between two adjacent blades of a first fixed-pitch propeller (104) of the four blades and a second fixed-pitch propeller (204) of the four blades is set to be 45 degrees, and because the first fixed-pitch propeller (104) of the four blades and the second fixed-pitch propeller (204) of the four blades synchronously rotate reversely, even if the projection parts of the rotating surfaces of the first fixed-pitch propeller (104) of the four blades and the second fixed-pitch propeller (204) of the four blades on the horizontal plane are overlapped, the blades of the first fixed-pitch propeller (104) of the four blades and the second fixed-pitch propeller (204) of the four blades do not collide with each other, the initial installation angle phase difference (11) between two adjacent blades of the second fixed-pitch propeller (204) of the four blades and the third fixed-pitch propeller (214) of the four blades is set to be 45 degrees, because the second fixed-pitch propeller (204) of the four blades and the third fixed-pitch propeller (214) of, therefore, even if the projection surfaces of the second pitch propeller (204) of the four blades and the third pitch propeller (214) of the four blades on the horizontal plane are partially overlapped, the blades of the second pitch propeller (204) of the four blades and the third pitch propeller (214) of the four blades do not collide with each other.

Since the first pitch propeller (104) of the four blades and the second pitch propeller (204) of the four blades are synchronously rotated reversely, the reaction torques of the first pitch propeller (104) of the four blades and the second pitch propeller (204) of the four blades are mostly offset each other, since the pitch of the first pitch propeller (104) of the four blades is greater than the pitch of the second pitch propeller (204) of the four blades, the reaction torque of the first pitch propeller (104) of the four blades is greater than the reaction torque of the second pitch propeller (204) of the four blades, and a part of the reaction torque is left, the direction is the same as the direction of the reaction torque of the first pitch propeller (104) of the four blades, and in addition, the reaction torque of the third pitch propeller (214) of the four blades is not offset, since the first pitch propeller (104) of the four blades and the third pitch propeller (214) of the four blades are both rotated counterclockwise, the counter-torque of the quantum pitch synchronous contra-rotating propeller set in the lower diagram of fig. 4 is equivalent to the quantum pitch synchronous contra-rotating propeller set (55) of the counter-clockwise rotating pitch propeller.

Fig. 5 is an oblique perspective view of an example of the quantum pitch synchronous contra-rotating propeller set of the present invention, consisting of three fixed-pitch propellers with three blades, applied to a multi-axis helicopter.

In fig. 5, four groups of three fixed pitch propellers, each fixed pitch propeller has three blades, the diameters of the blades are the same, and the pitch distribution is the same as that of the quantum pitch synchronous reversal propeller group, wherein two groups of reaction torques are equivalent to the quantum pitch synchronous reversal propeller group (5) of the fixed pitch propeller rotating clockwise, and the other two groups of reaction torques are equivalent to the quantum pitch synchronous reversal propeller group (55) of the fixed pitch propeller rotating counterclockwise.

An undercarriage (99) is arranged below the airframe (88), a front arm (71) is arranged in front of the airframe (88), a quantum pitch synchronous reversal propeller group (55) with counter-torque equivalent to a counter-clockwise rotating fixed pitch propeller and a quantum pitch synchronous reversal propeller group consisting of three fixed pitch propellers with three blades are arranged on the front arm (71), the front arm propeller group (71) is driven by an engine (41), a rear arm (72) is arranged behind a machine body (88), a quantum pitch synchronous reversal propeller group (55) with the reactive torque equivalent to a counter-clockwise fixed pitch propeller is arranged on the rear arm (72), and the quantum pitch synchronous reversal propeller group consisting of three fixed pitch propellers with three blades is adopted, hereinafter referred to as a rear arm propeller group (72), the rear arm propeller group (72) being driven by the engine (42); the left of fuselage (88), set up left arm (73), set up quantum pitch synchronous reversal screw group (5) that the anti-torque equivalence is a clockwise distance screw that changes on left arm (73), the quantum pitch synchronous reversal screw group that three distance screw that adopts three paddle constitutes, hereinafter be referred to left arm screw group (73) for short, left arm screw group (73) are driven by engine (43), the right-hand of fuselage (88), set up right arm (74), set up quantum pitch synchronous reversal screw group (5) that the anti-torque equivalence is a clockwise distance screw that changes on right arm (74), the quantum pitch synchronous reversal screw group that three distance screw that adopts three paddle constitutes, hereinafter be referred to right arm screw group (74), right arm screw group (74) is driven by engine (44).

The engine (41), the engine (42), the engine (43) and the engine (44) are engines with the same power, the throttle of four engines is enlarged identically, the lift force of the front arm propeller group (71), the rear arm propeller group (72), the left arm propeller group (73) and the right arm propeller group (74) is increased simultaneously, when the total lift force is larger than the weight of the helicopter, the helicopter rises vertically, and the heading direction is not influenced during vertical rising operation because the sum of the reaction torques of the front arm propeller group (71) and the rear arm propeller group (72) is equal to the sum of the reaction torques of the left arm propeller group (73) and the right arm propeller group (74) and the reaction torques of the front arm propeller group (71), the rear arm propeller group (72), the left arm propeller group (73) and the right arm propeller group (74) are opposite to each other.

The same reduces the four engine throttles, when the total lift equals the weight of the helicopter, the helicopter hovers, the same reduces the four engine throttles, when the total lift is less than the weight of the helicopter, the helicopter descends vertically.

When the helicopter is in the air, the accelerator of an engine (41) is increased, the lift force of a front arm propeller group (71) is increased, the reaction torque of a quantum pitch synchronous reversal propeller group (55) equivalent to a counter-clockwise rotating fixed-pitch propeller is increased, meanwhile, the accelerator of the engine (42) is reduced, the lift force of a rear arm propeller group (72) is reduced, the reaction torque of the quantum pitch synchronous reversal propeller group (55) equivalent to the counter-clockwise rotating fixed-pitch propeller is reduced, the lift forces of the front arm propeller group (71) and the rear arm propeller group (72) generate a backward pitching moment, the helicopter tilts backwards, the sum of the reaction torques of the quantum pitch synchronous reversal propeller group (55) equivalent to the counter-clockwise rotating fixed-pitch propeller of the front arm propeller group (71) and the rear arm propeller group (72) is unchanged, and the course of the backward pitching operation process does not; the accelerator of an engine (41) is reduced, the lift force of a front arm propeller group (71) is reduced, the reaction torque of a quantum pitch synchronous reversal propeller group (55) equivalent to a counter-clockwise rotating fixed-pitch propeller is reduced, meanwhile, the accelerator of the engine (42) is increased, the lift force of a rear arm propeller group (72) is increased, the reaction torque of the quantum pitch synchronous reversal propeller group (55) equivalent to the counter-clockwise rotating fixed-pitch propeller is increased, the lift forces of the front arm propeller group (71) and the rear arm propeller group (72) generate front pitching moment, the helicopter pitches forwards, the sum of the reaction torques of the quantum pitch synchronous reversal propeller group (55) equivalent to the counter-clockwise rotating fixed-pitch propeller of the front arm propeller group (71) and the rear arm propeller group (72) is unchanged, the course is not influenced in the pitching operation process, and the pitching operation of the helicopter is realized.

When the helicopter is in the air, the accelerator of an engine (43) is increased, the lift force of a left arm propeller group (73) is increased, the reaction torque of a quantum pitch synchronous reversal propeller group (5) equivalent to a clockwise rotating fixed pitch propeller is increased, meanwhile, the accelerator of an engine (44) is reduced, the lift force of a right arm propeller group (74) is reduced, the reaction torque of the quantum pitch synchronous reversal propeller group (5) equivalent to the clockwise rotating fixed pitch propeller is reduced, the lift forces of the left arm propeller group (73) and the right arm propeller group (74) generate a right roll moment, the helicopter rolls to the right, the sum of the reaction torques of the quantum pitch synchronous reversal propeller group (5) equivalent to the clockwise rotating fixed pitch propeller of the left arm propeller group (73) and the right arm propeller group (74) is unchanged, and the course is not influenced in the process of the right roll operation; the throttle of an engine (43) is reduced, the lift force of a left arm propeller group (73) is reduced, the reaction torque of a quantum pitch synchronous reversal propeller group (5) equivalent to a clockwise rotating fixed-pitch propeller is reduced, meanwhile, the throttle of the engine (44) is increased, the lift force of a right arm propeller group (74) is increased, the reaction torque of the quantum pitch synchronous reversal propeller group (5) equivalent to a clockwise rotating fixed-pitch propeller is increased, the lift forces of the left arm propeller group (73) and the right arm propeller group (74) generate a leftward roll moment, a helicopter rolls leftward, the sum of the reaction torques of the quantum pitch synchronous reversal propeller group (5) equivalent to the clockwise rotating fixed-pitch propeller of the left arm propeller group (73) and the right arm propeller group (74) is unchanged, the leftward roll operation process is not influenced, and the course control of the helicopter is realized.

When the helicopter is in the air, the accelerator of an engine (41) and an engine (42) is increased, the lift force of a front arm propeller group (71) and a rear arm propeller group (72) is increased, the reaction torque and the increase of a quantum pitch synchronous reversal propeller group (55) of two equivalent counter-clockwise rotating fixed pitch propellers are increased, simultaneously, the accelerator of an engine (43) and an engine (44) is reduced, the lift force of a left arm propeller group (73) and a right arm propeller group (74) is reduced, the reaction torque and the reduction of a quantum pitch synchronous reversal propeller group (5) of two equivalent clockwise rotating fixed pitch propellers are reduced, the reaction torque and the reaction torque of the quantum pitch synchronous reversal propeller group (55) of two equivalent counter-clockwise rotating fixed pitch propellers are greater than the reaction torque and the counter-torque of the quantum synchronous reversal propeller group (5) of two equivalent clockwise rotating fixed pitch propellers are reduced, and the helicopter rotates clockwise, the lifting mechanism is turned rightwards, the total lift sum of the front arm propeller group (71), the rear arm propeller group (72), the left arm propeller group (73) and the right arm propeller group (74) is unchanged, and the lifting is not influenced by the turning operation rightwards; reducing the throttle of the engine (41) and the engine (42), reducing the lift of the front arm propeller group (71) and the rear arm propeller group (72), reducing the reactive torque of the quantum pitch synchronous reversal propeller group (55) of the two equivalent counter-clockwise rotating pitch propellers, simultaneously increasing the throttle of the engine (43) and the engine (44), increasing the lift of the left arm propeller group (73) and the right arm propeller group (74), increasing the reactive torque of the quantum pitch synchronous reversal propeller group (5) of the two equivalent clockwise rotating pitch propellers and the reactive torque of the quantum pitch synchronous reversal propeller group (55) of the two equivalent counter-clockwise rotating pitch propellers, rotating the helicopter counter-clockwise, i.e. turning left, the total lift force sum of the front arm propeller group (71), the rear arm propeller group (72), the left arm propeller group (73) and the right arm propeller group (74) is unchanged, steering to the left does not affect lifting, and heading control is realized.

The pitching, rolling and course of the helicopter are effectively controlled, and the helicopter stably flies.