阅读说明：本技术 一种便于对扇叶角度调节的双风轮风动机 (Double-wind-wheel air-operated machine convenient for adjusting angle of fan blade ) 是由 杨中国 杨道彤 李威 孙正 蔡田芳 缑亚楠 张乃标 王梅 谢玉东 于春蕾 杨坤 于 2021-09-16 设计创作，主要内容包括：本发明涉及风动机技术领域,尤其涉及一种便于对扇叶角度调节的双风轮风动机,包括主轴、前风轮、后风轮、支撑杆、合力箱和机舱；前风轮和后风轮包括多个叶片和多组用于固定的连接杆和辅助杆；连接套上设置有安装槽,凸块卡在安装槽中；连接套中设置有吸引器,吸引器与凸块磁性相吸；连接杆上设置有套环,套环与连接杆转动连接；第一配重块安装在基座的顶部,第二配重块安装在基座的底部；活动板的一端插入基座的中空部；基座的内部设置有磁吸块；基座的中空部内设置有弹性件；本发明叶片的角度能够进行调节,降低启动时的力矩；待转速上升后活动板伸出,转动时产生的动能更大,使得主轴转速上升,从而提高发电效率。(The invention relates to the technical field of air motors, in particular to a double-wind-wheel air motor convenient for adjusting the angle of fan blades, which comprises a main shaft, a front wind wheel, a rear wind wheel, a supporting rod, a resultant force box and a cabin, wherein the main shaft is arranged on the front wind wheel; the front wind wheel and the rear wind wheel comprise a plurality of blades and a plurality of groups of connecting rods and auxiliary rods for fixing; the connecting sleeve is provided with an installation groove, and the convex block is clamped in the installation groove; an attractor is arranged in the connecting sleeve and magnetically attracted with the bump; a lantern ring is arranged on the connecting rod and is rotationally connected with the connecting rod; the first balancing weight is arranged at the top of the base, and the second balancing weight is arranged at the bottom of the base; one end of the movable plate is inserted into the hollow part of the base; a magnetic suction block is arranged inside the base; an elastic piece is arranged in the hollow part of the base; the angle of the blade can be adjusted, and the moment when the blade is started is reduced; after the rotating speed rises, the movable plate extends out, and kinetic energy generated during rotation is larger, so that the rotating speed of the main shaft rises, and the power generation efficiency is improved.)

1. A double-wind wheel wind motor convenient for adjusting the angle of fan blades comprises a main shaft (1), a front wind wheel (3), a rear wind wheel (5), a support rod, a resultant force box (6) and a cabin (7); the wind power generation device is characterized in that the front wind wheel (3) and the rear wind wheel (5) comprise a plurality of blades (9) and a plurality of groups of connecting rods (10) and auxiliary rods (12) for fixing; the connecting sleeve (2) is provided with an installation groove (21), the connecting rod (10) is provided with a convex bump (13), and the bump (13) is clamped in the installation groove (21); the connecting rod (10) is rotationally connected relative to the connecting sleeve (2); an aspirator (22) is arranged in the connecting sleeve (2), and the aspirator (22) is an electromagnet; the attractor (22) is magnetically attracted with the lug (13); a lantern ring (11) is arranged on the connecting rod (10), and the lantern ring (11) is rotatably connected with the connecting rod (10); one end of the auxiliary rod (12) is fixed on the connecting sleeve (2), and the other end is fixed on the lantern ring (11); the blade (9) is connected with the connecting sleeve (2) through a connecting rod (10);

the blade (9) comprises a base (92) in the middle, a first balancing weight (91), a second balancing weight (93) and a movable plate (94); the first balancing weight (91) is arranged at the top of the base (92), and the second balancing weight (93) is arranged at the bottom of the base (92); the first balancing weight (91) is a hollow block, and the second balancing weight (93) is a solid block; the middle part of the base (92) is hollow, and one end of the movable plate (94) is inserted into the hollow part of the base (92); a limit strip (95) is arranged on one side of the movable plate (94) extending out of the base (92); a magnetic attraction block (96) is arranged in the base (92), the magnetic attraction block (96) is an electromagnet, and the magnetic attraction block (96) and the movable plate (94) keep magnetic attraction; an elastic member (97) is arranged in the hollow part of the base (92), and the elastic member (97) stretches or contracts along the running direction of the movable plate (94).

2. A twin-impeller wind motor facilitating the adjustment of the angle of the blades as claimed in claim 1, wherein the auxiliary bar (12) cooperates with the connecting bar (10) to form a triangular stable structure.

3. The double-wind-wheel air motor convenient for adjusting the angle of the fan blades as claimed in claim 1, wherein the attractor (22) in the connecting sleeve (2) generates magnetism when being electrified and is kept fixed with the bump (13) in a magnetic attraction manner.

4. A twin-impeller wind motor facilitating fan blade angle adjustment according to claim 1, wherein the second weight block (93) weighs 3 times the first weight block (91).

5. A twin-impeller wind motor facilitating the adjustment of the angle of the blades as claimed in claim 1, wherein the auxiliary bar (12) and the connecting bar (10) are hollow bars.

6. The dual-wind-wheel wind motor convenient for adjusting the angle of the fan blades as claimed in claim 1, wherein the movable plate (94) is a hollow thin plate, and the limiting strips (95) on the movable plate (94) are elastic rubber members.

7. A twin-impeller wind motor facilitating the adjustment of the angle of the blades as claimed in claim 1, wherein the rotation range of the connecting rod (10) is 0-15 degrees.

8. The double-wind-wheel wind motor convenient for adjusting the angle of fan blades according to claim 1 is characterized in that a front wind wheel (3) is fixedly arranged on a connecting sleeve (2) of a main shaft (1), and the main shaft (1) is arranged on a supporting column (8); and drives the main shaft (1) to rotate; the rear wind wheel (5) is fixedly arranged on the sleeve shaft (4); the front wind wheel (3) is positioned above the rear wind wheel (5); the resultant force box (6) is arranged at the rear part of the sleeve shaft (4), the main shaft (1) penetrates through the resultant force box (6) to be connected with the engine room (7), the front wind wheel (3) rotates clockwise, and the rear wind wheel (5) rotates anticlockwise.

9. The double-wind-wheel wind motor convenient for adjusting the angle of the fan blades is characterized in that the sleeve shaft (4) is a hollow shaft and is sleeved on the main shaft (1) through a bearing, a reverse gear is arranged at the rear end of the sleeve shaft (4), a forward gear corresponding to the reverse gear is arranged on the main shaft (1) behind the reverse gear, two transmission gears are correspondingly arranged between the reverse gear and the forward gear, the reverse gear, the forward gear and the transmission gears are all sector gears, the two transmission gears are respectively fixed on the resultant force box (6) through fixed shafts, and the transmission gears are connected with the fixed shafts through bearings.

Technical Field

The invention relates to the technical field of air motors, in particular to a double-wind-wheel air motor convenient for adjusting the angle of fan blades.

Background

The wind driven generator is an important component of the wind driven generator and provides power for the generator, the efficiency of the wind driven generator is mainly determined by the wind driven generator, and the advancement of the wind driven generator is determined by one efficient wind driven generator. The existing wind driven generator mainly comprises three blades, a main shaft, a cabin and supporting columns, wherein the roots of the three blades are fixed at the front end of the main shaft, a gearbox and a generator are arranged in the cabin, the main shaft drives a rotor of the generator through the gearbox, and the blades, the main shaft and the cabin are arranged at the top ends of the supporting columns.

This existing three-bladed wind generator has two disadvantages: firstly, the requirement on wind speed is high, and the wind can rotate only under high wind speed; secondly, the main shaft has low rotating speed and the obtained power is small. Chinese patent application publication No. CN110630432A proposes a concentric shaft double-wind wheel wind motor, which comprises a support column, and a front wind wheel, a rear wind wheel, a main shaft, a sleeve shaft, a resultant force box, and a cabin mounted on the support column, wherein the front wind wheel is a clockwise rotation wind wheel, and is fixed at the front end of the main shaft through an end cap, a bolt, and a flange, so as to drive the main shaft to rotate clockwise. The rear wind wheel is a counter-clockwise rotating wind wheel and is fixedly arranged at the front end of the sleeve shaft through bolts, fixing plates, flanges and the like, so that the sleeve shaft is driven to rotate in the counter-clockwise direction. The resultant force box is arranged at the rear part of the sleeve shaft, and the main shaft penetrates through the resultant force box to be connected with the engine room. The invention has the beneficial effects that: the concentric shaft double-wind wheel air-operated machine adopts a double-wind wheel and double-shaft linkage structure capable of rotating in the positive and negative directions to generate electricity at a low wind speed, and is high in rotating speed, large in obtained power and high in generating efficiency. But the blade angle can not be adjusted, and the starting moment is larger when the wind power is smaller.

In order to solve the problems, the application provides a double-wind-wheel air-operated machine which is convenient for adjusting the angle of fan blades.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a double-wind-wheel air motor which is convenient for adjusting the angle of a fan blade, the angle of the fan blade can be adjusted, and the moment in starting is reduced; the movable plate extends out after the rotating speed rises, and kinetic energy generated during rotation is larger, so that the rotating speed of the main shaft rises, and the power generation efficiency is improved.

(II) technical scheme

In order to solve the technical problem, the invention provides a double-wind-wheel wind motor convenient for adjusting the angle of fan blades, which comprises a main shaft, a front wind wheel, a rear wind wheel, a support rod, a resultant force box and a cabin, wherein the main shaft is connected with the front wind wheel; the front wind wheel and the rear wind wheel comprise a plurality of blades and a plurality of groups of connecting rods and auxiliary rods for fixing; the connecting sleeve is provided with an installation groove, the connecting rod is provided with a convex lug, and the convex lug is clamped in the installation groove; the connecting rod is rotationally connected relative to the connecting sleeve; an aspirator is arranged in the connecting sleeve, and the aspirator is an electromagnet; the attractor is magnetically attracted with the lug; a lantern ring is arranged on the connecting rod and is rotationally connected with the connecting rod; one end of the auxiliary rod is fixed on the connecting sleeve, and the other end of the auxiliary rod is fixed on the lantern ring; the blades are connected with the connecting sleeve through connecting rods;

the blade comprises a base in the middle, a first balancing weight, a second balancing weight and a movable plate; the first balancing weight is arranged at the top of the base, and the second balancing weight is arranged at the bottom of the base; the first balancing weight block is a hollow block, and the second balancing weight block is a solid block; the middle part of the base is hollow, and one end of the movable plate is inserted into the hollow part of the base; one side of the movable plate extending out of the base is provided with a limiting strip; a magnetic attraction block is arranged in the base and is an electromagnet, and the magnetic attraction block and the movable plate keep magnetic attraction; an elastic piece is arranged in the hollow part of the base and stretches or stretches along the moving direction of the movable plate.

Preferably, the auxiliary rod cooperates with the connecting rod to form a triangular stabilizing structure.

Preferably, the attractor in the connecting sleeve generates magnetism when being electrified and is kept fixed with the lug in a magnetic suction mode.

Preferably, the second weight block weighs 3 times the first weight block.

Preferably, the auxiliary bar and the connecting bar are hollow bars.

Preferably, the movable plate is a hollow thin plate, and the limiting strips on the movable plate are elastic rubber pieces.

Preferably, the range of rotation of the connecting rod is 0-15 degrees.

Preferably, the front wind wheel is fixedly arranged on a connecting sleeve of the main shaft, and the main shaft is arranged on the supporting column; and drives the main shaft to rotate; the rear wind wheel is fixedly arranged on the sleeve shaft; the front wind wheel is positioned above the rear wind wheel; the resultant force box is arranged at the rear part of the sleeve shaft, the main shaft penetrates through the resultant force box to be connected with the engine room, the front wind wheel rotates clockwise, and the rear wind wheel rotates anticlockwise.

Preferably, the sleeve shaft is a hollow shaft, and is sleeved on the main shaft through a bearing, a reverse gear is arranged at the rear end of the sleeve shaft, a forward gear corresponding to the reverse gear is mounted on the main shaft behind the reverse gear, two transmission gears are correspondingly mounted between the reverse gear and the forward gear, the reverse gear, the forward gear and the transmission gears are all sector gears, the two transmission gears are respectively fixed on the resultant force box through a fixed shaft, and the transmission gears are connected with the fixed shaft through the bearing.

The technical scheme of the invention has the following beneficial technical effects:

1. the second balancing weight on the blade is a solid block, and the gravity of the second balancing weight is greater than that of the first balancing weight; the gravity center of the whole blade is concentrated at the lower part of the blade, and the blade is gradually inclined under the action of breeze; the starting moment is small in an inclined state compared with that in a vertical state, and the front wind wheel and the rear wind wheel rotate slowly under the action of breeze, so that the main shaft can be driven to rotate to generate electricity; after the rotating speed of the main shaft rises, the suction device sucks the lug to reset, so that the blade is kept in a vertical state; by the method, the starting torque in the initial state can be greatly reduced, and the power generation efficiency is improved.

2. After the wind wheel rotates to have a certain initial speed, the magnetic suction block loses power, and the movable plate is ejected out by the elasticity of the elastic piece; the movable plate is completely extended out under the influence of centrifugal force in the rotating process of the wind wheel; at the moment, the contact area between the blades and the air is larger, and the kinetic energy generated during rotation is larger, so that the rotating speed of the main shaft is increased, and the power generation efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the blade of the present invention in a tilted state;

FIG. 3 is a schematic view of the mounting structure of the auxiliary rod and the connecting rod according to the present invention;

FIG. 4 is a schematic view of the external structure of the blade of the present invention;

FIG. 5 is a schematic view of the internal structure of the blade of the present invention;

fig. 6 is a schematic view of an installation structure of the connecting rod and the connecting sleeve in the invention.

Reference numerals: 1. a main shaft; 2. connecting sleeves; 21. mounting grooves; 22. a suction apparatus; 3. a front wind wheel; 4. a sleeve shaft; 5. a rear wind wheel; 6. a resultant force box; 7. a nacelle; 8. a support pillar; 9. a blade; 91. a first weight block; 92. a base; 93. a second counterweight block; 94. a movable plate; 95. a limiting strip; 96. a magnetic block; 97. an elastic member; 10. a connecting rod; 11. a collar; 12. an auxiliary lever; 13. and (4) a bump.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-2, the double-wind-wheel wind turbine provided by the invention is convenient for adjusting the angle of the fan blades, and comprises a main shaft 1, a front wind wheel 3, a rear wind wheel 5, a support rod, a resultant force box 6 and a cabin 7;

in the embodiment, the spindle 1 is provided with a connecting sleeve 2; the front wind wheel 3 is arranged and fixed on the connecting sleeve 2 of the main shaft 1 and drives the main shaft 1 to rotate; the rear wind wheel 5 is fixedly arranged on the sleeve shaft 4; the front wind wheel 3 is positioned above the rear wind wheel 5; the resultant force box 6 is arranged at the rear part of the sleeve shaft 4, the main shaft 1 penetrates through the resultant force box 6 to be connected with the engine room 7, the front wind wheel 3 rotates clockwise, and the rear wind wheel 5 rotates anticlockwise; the sleeve shaft 4 is a hollow shaft and is sleeved and connected on the main shaft 1 through a bearing, a reverse gear is arranged at the rear end of the sleeve shaft 4, a forward gear corresponding to the reverse gear is installed on the main shaft 1 behind the reverse gear, two transmission gears are correspondingly installed between the reverse gear and the forward gear, the reverse gear, the forward gear and the transmission gears are all sector gears, the two transmission gears are respectively fixed on the resultant force box 6 through a fixed shaft, and the transmission gears are connected with the fixed shaft through the bearing.

As shown in fig. 3 and 6, the front rotor 3 and the rear rotor 5 comprise a plurality of blades 9 and connecting rods 10 and auxiliary rods 12 for fixing; the connecting sleeve 2 is provided with an installation groove 21, the connecting rod 10 is provided with a convex lug 13, and the lug 13 is clamped in the installation groove 21; the connecting rod 10 is rotatably connected relative to the connecting sleeve 2; the connecting sleeve 2 is internally provided with an aspirator 22, and the aspirator 22 is an electromagnet; the attractor 22 is magnetically attracted with the bump 13; a lantern ring 11 is arranged on the connecting rod 10, and the lantern ring 11 is rotatably connected with the connecting rod 10; one end of the auxiliary rod 12 is fixed on the connecting sleeve 2, and the other end is fixed on the lantern ring 11; the auxiliary bar 12 cooperates with the connecting bar 10 to form a triangular stable structure.

It should be noted that the blade 9 is connected with the connecting sleeve 2 through the connecting rod 10; the connecting rod 10 can rotate to adjust the angle, and the angle adjusting range is limited by the mounting groove 21 on the connecting sleeve 2; the attractor 22 in the connecting sleeve 2 generates magnetism when being electrified and is kept fixed with the lug 13 in a magnetic attraction way; at this time, the connecting rod 10 is located at the initial position, and the entire vane 9 is maintained in the vertical state as shown in fig. 1.

As shown in fig. 4-5, the blade 9 includes a central base 92, a first counterweight 91, a second counterweight 93, and a movable plate 94; the first counterweight 91 is arranged at the top of the base 92, and the second counterweight 93 is arranged at the bottom of the base 92; the first counterweight block 91 is a hollow block, and the second counterweight block 93 is a solid block; the base 92 is hollow in the middle, and one end of the movable plate 94 is inserted into the hollow of the base 92; a limit strip 95 is arranged at one side of the movable plate 94 extending out of the base 92; a magnetic block 96 is arranged inside the base 92, the magnetic block 96 is an electromagnet, and the magnetic block 96 and the movable plate 94 are magnetically attracted; an elastic member 97 is provided in the hollow portion of the base 92, and the elastic member 97 is extended or contracted in a direction in which the movable plate 94 travels.

It should be noted that when the wind force is small, the movable plate 94 is contracted in the hollow portion of the base 92, and at this time, the starting moment is small; after the wind wheel rotates to have a certain initial speed, the magnetic suction block 96 loses power, and the movable plate 94 is ejected out by the elasticity of the elastic piece 97; the movable plate 94 is completely extended out under the influence of centrifugal force in the rotation process of the wind wheel; at this time, the contact area of the blades 9 and the air is larger, and the kinetic energy generated during rotation is larger, so that the rotating speed of the main shaft 1 is increased, and the power generation efficiency is improved.

The working principle and the using process of the invention are as follows: in an initial state, as shown in fig. 1, the blades 9 on the front wind wheel 3 and the rear wind wheel 5 are kept in a vertical state; at the moment, if the starting cannot be realized by external wind power; controlling the suction apparatus 22 to lose power through the upper computer, and then the magnetic attraction force between the suction apparatus 22 and the lug 13 disappears; the second balancing weight 93 on the blade 9 is a solid block, and the gravity is greater than that of the first balancing weight 91; the center of gravity of the whole blade 9 is concentrated at the lower part of the blade 9, and the blade 9 is gradually inclined under the action of breeze; the connecting rod 10 rotates relative to the connecting sleeve 2, the lug 13 moves to a position far away from the suction device 22, and the blades 9 on the front wind wheel 3 keep an inclined state; similarly, the blades 9 on the rear wind wheel 5 keep an inclined state to form a state shown in fig. 2; the front wind wheel 3 and the rear wind wheel 5 slowly rotate under the action of breeze, so that the main shaft 1 can be driven to rotate to generate electricity; after the rotation speed of the main shaft 1 rises, the suction device 22 sucks the lug 13 to reset, so that the blade 9 is kept in a vertical state; by the method, the starting torque in the initial state can be greatly reduced, and the power generation efficiency is improved. When the wind power is small, the movable plate 94 is contracted in the hollow part of the base 92, and the starting moment is small; after the wind wheel rotates to have a certain initial speed, the magnetic suction block 96 loses power, and the movable plate 94 is ejected out by the elasticity of the elastic piece 97; the movable plate 94 is completely extended out under the influence of centrifugal force in the rotation process of the wind wheel; at this time, the contact area of the blades 9 and the air is larger, and the kinetic energy generated during rotation is larger, so that the rotating speed of the main shaft 1 is increased, and the power generation efficiency is improved. The angle of the blade 9 can be adjusted, so that the moment during starting is reduced; after the rotating speed rises, the movable plate 94 extends out, and the kinetic energy generated during rotation is larger, so that the rotating speed of the main shaft 1 rises, and the power generation efficiency is improved.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.