阅读说明：本技术 一种无人直升机用主旋翼桨叶固定组件 (Main rotor blade fixing assembly for unmanned helicopter ) 是由 陈罗丹 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种无人直升机用主旋翼桨叶固定组件,涉及直升机技术领域。包括桨叶本体、安装架、动力轴,所述桨叶本体设置有多个,且多个所述桨叶本体均卡入所述安装架内,所述安装架上安装有用于调节所述桨叶本体偏转方向的调节机构,所述调节机构包括球套、球体；所述安装架上安装有气泵、气体存储箱,所述安装架上安装有给所述球套与所述球体连接部分加润滑油的润滑机构；所述安装架上安装有用于保护所述调节机构的防冻机构。本发明使用时,通过可调节桨叶本体1的角度通过润滑机构内各部件的相互配合,可对调节机构内的球套、球体连接的部分处均匀的注入润滑油,可将加热后的气体吹至调节机构处,能够防止调节机构结冰。(The invention discloses a main rotor blade fixing assembly for an unmanned helicopter, and relates to the technical field of helicopters. The multi-blade type wind power generation device comprises a plurality of blade bodies, an installation frame and a power shaft, wherein the plurality of blade bodies are clamped in the installation frame, an adjusting mechanism for adjusting the deflection direction of the blade bodies is installed on the installation frame, and the adjusting mechanism comprises a ball sleeve and a ball body; the mounting frame is provided with an air pump and an air storage box, and a lubricating mechanism for adding lubricating oil to the connecting part of the ball sleeve and the ball body is arranged on the mounting frame; and the mounting frame is provided with an anti-freezing mechanism for protecting the adjusting mechanism. When the adjustable blade body 1 is used, lubricating oil can be uniformly injected into the connecting part of the ball sleeve and the ball body in the adjusting mechanism through the mutual matching of all parts in the lubricating mechanism by adjusting the angle of the blade body 1, heated gas can be blown to the adjusting mechanism, and the adjusting mechanism can be prevented from being frozen.)

1. A main rotor blade fixing assembly for an unmanned helicopter comprises a blade body (1), a mounting frame (2) and a power shaft (3), and is characterized in that a plurality of blade bodies (1) are arranged, the blade bodies (1) are clamped into the mounting frame (2), an adjusting mechanism for adjusting the deflection direction of the blade bodies (1) is installed on the mounting frame (2), and the adjusting mechanism comprises a ball sleeve (4) and a ball body (5);

an air pump (14) and an air storage box (15) are mounted on the mounting rack (2), and a lubricating mechanism for adding lubricating oil to the connecting part of the ball sleeve (4) and the ball body (5) is mounted on the mounting rack (2);

and the mounting frame (2) is provided with an anti-freezing mechanism for protecting the adjusting mechanism.

2. A main rotor blade fixing assembly for an unmanned helicopter according to claim 1 characterized in that said ball sleeve (4) is installed on said blade body (1), said ball sleeve (4) is provided with a plurality of ball sleeves, said ball sleeve (4) is sleeved outside of said ball body (5), said ball body (5) is connected with a fixing rod (6), said fixing rod (6) is inserted into said mounting bracket (2).

3. A main rotor blade attachment assembly for an unmanned helicopter according to claim 2 wherein the end of said attachment rod (6) is provided with a threaded portion, said threaded portion having a nut (7) mounted thereon, said attachment rod (6) being externally sleeved with a resilient washer, said resilient washer being located between said mounting bracket (2) and said nut (7).

4. The main rotor blade fixing assembly for the unmanned helicopter of claim 2 or 3, characterized in that the blade body (1) is connected with the rotating plate (8), the rotating plate (8) is clamped into the arc-shaped groove (9), the arc-shaped groove (9) is arranged on the mounting frame (2), the rotating plate (8) is connected with the adjusting rod (10), the adjusting rod (10) is sleeved with the adjusting plate (11), the adjusting plate (11) is rotatably connected with the adjusting frame (12), the electric telescopic rod (13) is installed at the lower end of the adjusting frame (12), and the electric telescopic rod (13) is installed on the mounting frame (2).

5. The main rotor blade fixing assembly for the unmanned helicopter of claim 1, wherein the lubricating mechanism is provided in plurality, the lubricating mechanism comprises an air outlet pipe (16), the air outlet pipe (16) is inserted into the gas storage tank (15), an air outlet valve (17) is installed on the air outlet pipe (16), the air outlet pipe (16) is inserted into an oil injection tank (18), the oil injection tank (18) is installed on the mounting rack (2), and annular fan blades (19) are clamped in the oil injection tank (18).

6. A main rotor blade retention assembly for an unmanned helicopter according to claim 5 wherein said outlet duct (16) is located directly above said annular fan (19), said annular fan (19) is connected to a divider plate (20), said divider plate (20) is snapped into said fuel tank (18) and is rotatably connected to said fuel tank (18), and said divider plate (20) is connected to a seal plate (21).

7. The main rotor blade fixing assembly for the unmanned helicopter of claim 6, characterized in that the sealing plate (21) is provided with a through hole, an oil filling pipe (22) is clamped in the through hole, and the oil filling pipe (22) is provided with an oil filling valve (23).

8. The main rotor blade fixing assembly for the unmanned helicopter according to claim 7, characterized in that an extension tube (24) is inserted into the oil injection tube (22), a spring (25) is sleeved outside the extension tube (24), the spring (25) is clamped into the oil injection tube (22), and a notch (26) is provided at one side of the extension tube (24) close to the ball sleeve (4).

9. A main rotor blade attachment assembly for an unmanned helicopter according to claim 1 wherein said freeze protection mechanism comprises a defrosting tube (27), said defrosting tube (27) being inserted into said gas storage tank (15), said defrosting tube (27) having an exhaust valve (28) mounted thereon.

10. A main rotor blade attachment assembly for an unmanned helicopter according to claim 9 wherein said defrosting tube (27) has a heating means (29) mounted therein and said defrosting tube (27) has a plurality of evenly distributed air outlets (30) disposed therein.

Technical Field

The invention relates to the technical field of helicopters, in particular to a main rotor blade fixing assembly for an unmanned helicopter.

Background

The helicopter mainly comprises a body, a lift force (including a rotor wing and a tail rotor), a power system, a transmission system, airborne flight equipment and the like. The rotor is generally driven by a turboshaft engine or a piston engine through a mechanical transmission system composed of a transmission shaft, a reducer and the like, and can also be driven by a reaction force generated by blade tip jet.

According to "a paddle fixed knot constructs and unmanned aerial vehicle" that chinese patent grant publication No. CN 107585290B provided, can be through the quick installation and the dismantlement of the paddle that can realize unmanned aerial vehicle's screw, simple structure, the operation is convenient, but the helicopter when the flight, generally need install paddle adjustment mechanism and adjust the angle of paddle to this adjusts the flight direction.

At present, a regulating mechanism of a helicopter blade is provided, wherein a ball sleeve is clamped at the inner side of the regulating mechanism, the ball sleeve is sleeved outside a sphere and can rotate around the sphere, and an electric telescopic rod drives the blade to rotate around the sphere so as to regulate the rotating angle of the helicopter blade;

1. lubricating oil cannot be automatically injected into the part, connected with the sphere, of the spherical sleeve, so that friction between the spherical sleeve and the sphere is blocked after the helicopter flies for a long time, the service life of the spherical sleeve and the sphere is influenced, and when the friction is large, the direction adjustment of the blades is inconvenient, and the helicopter is inconvenient to operate;

2. when some cold areas of the helicopter fly, water vapor in the air can freeze at the adjusting mechanism, so that the adjusting mechanism cannot work normally, and the normal flight of the helicopter is influenced.

Disclosure of Invention

The invention provides a main rotor blade fixing assembly for an unmanned helicopter, which solves the technical problems that the existing helicopter blade mounting mechanism cannot automatically inject lubricating oil and cannot prevent the mounting mechanism from icing.

In order to solve the technical problems, the invention provides a main rotor blade fixing assembly for an unmanned helicopter, which comprises a plurality of blade bodies, a mounting frame and a power shaft, wherein the plurality of blade bodies are clamped in the mounting frame, the mounting frame is provided with an adjusting mechanism for adjusting the deflection direction of the blade bodies, and the adjusting mechanism comprises a ball sleeve and a ball body;

the mounting frame is provided with an air pump and an air storage box, and a lubricating mechanism for adding lubricating oil to the connecting part of the ball sleeve and the ball body is arranged on the mounting frame;

and the mounting frame is provided with an anti-freezing mechanism for protecting the adjusting mechanism.

Preferably, the ball sleeve is installed on the paddle body, the ball sleeve is provided with a plurality of ball sleeves, the ball sleeve is sleeved on the outer side of the ball body, the ball body is connected with the fixing rod, and the fixing rod is inserted into the mounting rack.

Preferably, the dead lever end is provided with screw thread portion, the nut is installed to screw thread portion, the dead lever outside cover is equipped with the elastic washer, the elastic washer is located the mounting bracket with between the nut.

Preferably, this body coupling of paddle the rotor plate, in the arc wall was gone into to the rotor plate card, the arc wall setting was in on the mounting bracket, the regulation pole is connected to the rotor plate, it is equipped with the regulating plate to adjust pole outside cover, the regulating plate rotates and connects the alignment jig, electric telescopic handle is installed to the alignment jig lower extreme, electric telescopic handle installs on the mounting bracket.

Preferably, lubricated mechanism is provided with a plurality ofly, lubricated mechanism includes the outlet duct, the outlet duct inserts in the gas storage box, the air outlet valve is installed to the outlet duct, the outlet duct inserts in annotating the oil tank, annotate the oil tank and install on the mounting bracket, the card is equipped with annular flabellum in the oiling box.

Preferably, the air outlet pipe is located right above the annular fan blades, the annular fan blades are connected with a partition plate, the partition plate is clamped in the oil injection tank and is rotatably connected with the oil injection tank, and the partition plate is connected with the sealing plate.

Preferably, the sealing plate is provided with a through hole, an oil filling pipe is clamped in the through hole, and the oil filling pipe is provided with an oil filling valve.

Preferably, a telescopic pipe penetrates through the oil injection pipe, a spring is sleeved on the outer side of the telescopic pipe, the spring is clamped in the oil injection pipe, and a notch is formed in one side, close to the ball sleeve, of the telescopic pipe.

Preferably, the anti-freezing mechanism comprises a defrosting pipe, the defrosting pipe is inserted into the gas storage tank, and an exhaust valve is installed on the defrosting pipe.

Preferably, a heating device is installed in the defrosting pipe, and a plurality of uniformly distributed air outlets are formed in the defrosting pipe.

Compared with the prior art, the main rotor blade fixing assembly for the unmanned helicopter provided by the invention has the following beneficial effects:

the invention provides a main rotor blade fixing assembly for an unmanned helicopter, wherein when an adjusting mechanism works, an adjusting frame is driven by an electric telescopic rod to move up and down, the adjusting frame pulls or extrudes an adjusting plate and an adjusting rod to further drive a rotating plate to rotate along an arc-shaped groove, and further drive a blade body to rotate by the rotating plate, when the blade body rotates, the rotating angle of the blade body can be limited by the mutual matching of a ball sleeve, a ball body, a fixing rod and a nut, so that the flying angle of an unmanned aerial vehicle can be adjusted, and the blade body is more stable and convenient to use when rotating;

the invention provides a main rotor blade fixing component for an unmanned helicopter, wherein when a lubricating mechanism works, gas is injected into a gas storage box through a gas pump, the gas is injected into an oil injection box through a gas outlet valve and a gas outlet pipe, the outer wall of the oil injection box is provided with an exhaust hole, the gas blows an annular fan blade to rotate, lubricating oil is arranged on the inner wall of a separation plate and the oil injection box, namely on the upper side of a sealing plate, the lubricating oil is dripped into a part where a ball sleeve is connected with a ball body from the oil injection pipe, meanwhile, the gas blows the annular fan blade to rotate to drive the oil injection pipe to rotate around the ball body, the lubricating oil can be dripped into the part where the ball sleeve is connected with the ball body at multiple angles uniformly, and when the blade body rotates, the normal rotation of the blade body is not influenced, and the telescopic pipe can be abutted to the ball sleeve, so that the loss of the lubricating oil is reduced;

the invention provides a main rotor blade fixing assembly for an unmanned helicopter.

Drawings

Fig. 1 is a schematic structural view of a main rotor blade attachment assembly for an unmanned helicopter.

Figure 2 is a schematic view of the structure of a main rotor blade attachment assembly for an unmanned helicopter at point a in figure 1.

Fig. 3 is a schematic structural view of an adjustment mechanism in a main rotor blade attachment assembly for an unmanned helicopter.

Figure 4 is a schematic view of the structure of figure 3 at B of a main rotor blade retention assembly for an unmanned helicopter.

Fig. 5 is a schematic view of the internal structure of a mount in a main rotor blade attachment assembly for an unmanned helicopter.

Figure 6 is a schematic view of the structure of figure 5 at C of a main rotor blade retention assembly for an unmanned helicopter.

Figure 7 is a schematic view of the structure of figure 5 at C of a main rotor blade retention assembly for an unmanned helicopter.

Fig. 8 is a schematic structural view of an annular blade in a main rotor blade retention assembly for an unmanned helicopter.

Figure 9 is a schematic view of the structure of a main rotor blade retention assembly for an unmanned helicopter shown at D in figure 8.

Reference numbers in the figures: 1. a blade body; 2. a mounting frame; 3. a power shaft; 4. a ball sleeve; 5. a sphere; 6. fixing the rod; 7. a nut; 8. a rotating plate; 9. an arc-shaped slot; 10. adjusting a rod; 11. an adjusting plate; 12. an adjusting bracket; 13. an electric telescopic rod; 14. an air pump; 15. a gas storage tank; 16. an air outlet pipe; 17. an air outlet valve; 18. injecting an oil tank; 19. An annular fan blade; 20. a partition plate; 21. a sealing plate; 22. an oil filling pipe; 23. an oil injection valve; 24. a telescopic pipe; 25. A spring; 26. a notch; 27. thawing the frozen pipe; 28. an exhaust valve; 29. a heating device; 30. and an air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1-9, the invention comprises a plurality of paddle bodies 1, a mounting frame 2 and a power shaft 3, wherein the plurality of paddle bodies 1 are clamped in the mounting frame 2, an adjusting mechanism for adjusting the deflection direction of the paddle bodies 1 is arranged on the mounting frame 2, and the adjusting mechanism comprises a ball sleeve 4 and a ball body 5;

an air pump 14 and an air storage box 15 are installed on the installation frame 2, and a lubricating mechanism for adding lubricating oil to the connecting part of the ball sleeve 4 and the ball body 5 is installed on the installation frame 2;

and an anti-freezing mechanism for protecting the adjusting mechanism is arranged on the mounting frame 2.

Example two

On the basis of embodiment one, ball cover 4 is installed on paddle body 1, ball cover 4 is provided with a plurality ofly, 4 covers of ball cover are established in the spheroid 5 outside, the dead lever 6 is connected to spheroid 5, dead lever 6 inserts in the mounting bracket 2, the dead lever 6 end is provided with screw thread portion, nut 7 is installed to screw thread portion, 6 outside covers of dead lever are equipped with the elasticity packing ring, the elasticity packing ring is located between mounting bracket 2 and the nut 7, paddle body 1 connects rotor plate 8, rotor plate 8 card is gone into in the arc wall 9, arc wall 9 sets up on mounting bracket 2, rotor plate 8 connects regulation pole 10, it is equipped with regulating plate 11 to adjust pole 10 outside covers, regulating plate 11 rotates and connects regulating bracket 12, electric telescopic handle 13 is installed to regulating bracket 12 lower extreme, electric telescopic handle 13 installs on mounting bracket 2.

EXAMPLE III

On the basis of embodiment one, lubricating mechanism is provided with a plurality ofly, lubricating mechanism includes outlet duct 16, outlet duct 16 inserts in the gas storage box 15, outlet valve 17 is installed to outlet duct 16, outlet duct 16 inserts in annotating the oil tank 18, annotate the oil tank 18 and install on mounting bracket 2, the card is equipped with annular flabellum 19 in the oil tank 18, outlet duct 16 is located annular flabellum 19 directly over, annular flabellum 19 connects division board 20, division board 20 card is gone into annotate in the oil tank 18 and is connected with annotating oil tank 18 rotation, division board 20 connects closing plate 21, be provided with the through-hole on the closing plate 21, the card is equipped with notes oil pipe 22 in the through-hole, notes oil pipe 22 installs notes oil valve 23, flexible pipe 24 has been worn to insert in notes oil pipe 22, flexible pipe 24 outside cover is equipped with spring 25, spring 25 card is gone into annotating oil pipe 22, flexible pipe 24 is close to one side of ball cover 4 and is provided with breach 26.

Example four

On the basis of the first embodiment, the anti-freezing mechanism comprises a defrosting pipe 27, the defrosting pipe 27 is inserted into the gas storage tank 15, an exhaust valve 28 is installed on the defrosting pipe 27, a heating device 29 is installed in the defrosting pipe 27, and a plurality of air outlet holes 30 which are uniformly distributed are formed in the defrosting pipe 27.

EXAMPLE five

The invention comprises a blade body 1, a mounting frame 2 and a power shaft 3, wherein a plurality of blade bodies 1 are arranged, the plurality of blade bodies 1 are clamped into the mounting frame 2, an adjusting mechanism for adjusting the deflection direction of the blade body 1 is arranged on the mounting frame 2, the adjusting mechanism comprises a ball sleeve 4 and a ball body 5, the ball sleeve 4 is arranged on the blade body 1, the ball sleeve 4 is arranged in a plurality of numbers, the ball sleeve 4 is sleeved outside the ball body 5, the ball body 5 is connected with a fixed rod 6, the fixed rod 6 is inserted into the mounting frame 2, the tail end of the fixed rod 6 is provided with a threaded part, the threaded part is provided with a nut 7, the outside of the fixed rod 6 is sleeved with an elastic washer, the elastic washer is positioned between the mounting frame 2 and the nut 7, the blade body 1 is connected with a rotating plate 8, the rotating plate 8 is clamped into an arc-shaped groove 9, the arc-shaped groove 9 is arranged on the mounting frame 2, the rotating plate 8 is connected with an adjusting rod 10, the adjusting plate 11 is sleeved outside the adjusting rod 10, the adjusting plate 11 is rotatably connected with an adjusting frame 12, an electric telescopic rod 13 is installed at the lower end of the adjusting frame 12, and the electric telescopic rod 13 is installed on the installation frame 2;

an air pump 14 and a gas storage tank 15 are installed on the installation frame 2, a plurality of lubricating mechanisms for adding lubricating oil to the connection part of the ball sleeve 4 and the ball body 5 are installed on the installation frame 2, each lubricating mechanism comprises an air outlet pipe 16, the air outlet pipe 16 is inserted into the gas storage tank 15, an air outlet valve 17 is installed on the air outlet pipe 16, the air outlet pipe 16 is inserted into the oil injection tank 18, the oil injection tank 18 is installed on the installation frame 2, an annular fan blade 19 is clamped in the oil injection tank 18, the air outlet pipe 16 is positioned right above the annular fan blade 19, the annular fan blade 19 is connected with a partition plate 20, the partition plate 20 is clamped in the oil injection tank 18 and is rotatably connected with the oil injection tank 18, the partition plate 20 is connected with a sealing plate 21, a through hole is formed in the sealing plate 21, an oil injection pipe 22 is clamped in the through hole, an oil injection valve 23 is installed on the oil injection pipe 22, a spring 24 is sleeved outside the telescopic pipe 24, the spring 25 is clamped in the oil filling pipe 22, and one side of the telescopic pipe 24 close to the ball sleeve 4 is provided with a gap 26;

install the mechanism of preventing frostbite that is used for protecting adjustment mechanism on the mounting bracket 2, prevent frostbite the mechanism and include changing and freeze pipe 27, change and freeze pipe 27 and insert in the gas storage box 15, change and freeze and install exhaust valve 28 on the pipe 27, change and freeze and install heating device 29 in the pipe 27, change and freeze the venthole 30 that is provided with a plurality of evenly distributed on the pipe 27.

The working principle is as follows:

when the helicopter is used, the external power supply and the controller are used, the angle of the blade body 1 can be adjusted through the mutual matching of all the parts in the adjusting mechanism, the flight direction of the helicopter is further adjusted, lubricating oil can be uniformly injected into the part where the ball sleeve 4 and the ball body 5 in the adjusting mechanism are connected through the mutual matching of all the parts in the lubricating mechanism, the smooth rotation between the ball sleeve 4 and the ball body 5 is ensured, the friction resistance is reduced, the service lives of the ball sleeve 4 and the ball body 5 are prolonged, heated gas can be blown to the adjusting mechanism through the mutual matching of all the parts in the anti-freezing mechanism, the icing of the adjusting mechanism or the melting speed of the heated ice after the ice is partially frozen at the adjusting mechanism can be prevented, and the flight of the unmanned aerial vehicle is ensured;

when the adjusting mechanism works, the adjusting frame 12 is driven to move up and down through the electric telescopic rod 13, the adjusting frame 12 pulls or extrudes the adjusting plate 11 and the adjusting rod 10 to further drive the rotating plate 8 to rotate along the arc-shaped groove 9, and then the rotating plate 8 drives the paddle body 1 to rotate, and when the paddle body 1 rotates, the rotating angle of the paddle body 1 can be limited through the mutual matching of the ball sleeve 4, the ball body 5, the fixing rod 6 and the nut 7, so that the paddle body 1 can rotate more stably and is convenient to use;

when the lubricating mechanism works, gas is injected into the gas storage tank 15 through the gas pump 14, the gas is injected into the oil injection tank 18 through the gas outlet valve 17 and the gas outlet pipe 16, the outer wall of the oil injection tank 18 is provided with an exhaust hole, the gas blows the annular fan blade 19 to rotate, lubricating oil is arranged on the inner walls of the partition plate 20 and the oil injection tank 18, namely on the upper side of the sealing plate 21, the lubricating oil is dripped into the part where the ball sleeve 4 is connected with the ball body 5 from the oil injection pipe 22, meanwhile, the gas blows the annular fan blade 19 to rotate to drive the oil injection pipe 22 to rotate around the ball body 5, the lubricating oil can be dripped into the part where the ball sleeve 4 is connected with the ball body 5 uniformly in a plurality of angles, when the paddle body 1 rotates, the telescopic pipe 24 and the spring 25 are arranged, the normal rotation of the paddle body 1 is not influenced, and the telescopic pipe 24 is abutted to the ball sleeve 4, so that the loss of the lubricating oil is reduced;

when the anti-freezing mechanism works, gas is injected into the gas storage tank 15 through the air pump 14, the gas is heated by the heating device 29 after passing through the exhaust valve 28 and the defrosting pipe 27 and is exhausted from the air outlet 30, and the exhausted hot air can prevent the adjusting mechanism from being frozen or accelerate the defrosting process of the adjusting mechanism after being frozen.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.