Fixed-wing unmanned aerial vehicle tail wing adjusting device with windproof guide plate

Abstract

The utility model provides a fixed wing unmanned aerial vehicle tail wing adjusting device with windproof guide plate, relates to unmanned aerial vehicle technical field, including tail wing, still include: windproof guide component, windproof guide component includes the connecting plate of fixed connection in tail wing tail part, is provided with the wind baffle on the connecting plate, the utility model discloses, first electric push -rod telescopic drive the first rotating block of output end around the stopper, simultaneously its with the connecting place of first rotating block drive rotating rod push -and -pull mobile seat, make mobile seat along the connecting plate slide, complete position adjustment through the wind baffle of support rod drive, when needing to adjust the wind angle, the second electric push -rod telescopic on support rod, promote second rotating block around support rod top rotation, because the wind baffle is fixedly connected with second rotating block, further realizes the accurate control of the wind baffle windward angle, makes the wind baffle flexible adjustment position and angle to the realization adaptation different flight air current environment, improves unmanned aerial vehicle flight stability.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a tail wing adjustment device for a fixed-wing UAV with a wind deflector. Background Technology

[0002] The tail fin adjustment device for fixed-wing UAVs with wind deflectors is designed to improve flight stability and control precision. Traditional tail fin adjustment devices are easily affected by changes in wind speed, leading to unstable flight attitude. By using wind deflectors, the impact of wind disturbances on the tail fin can be effectively reduced, thereby enhancing flight stability and handling performance, especially in complex weather conditions.

[0003] However, in actual use, the following shortcomings still exist. For example, the existing tail fin adjustment device for fixed-wing UAVs cannot adapt to different airflow environments and improve the flight stability of UAVs. When the airflow is changeable, the device cannot adjust the wind direction attitude, which can easily lead to imbalance of forces on the fuselage, causing high-frequency shaking or even instability, resulting in a significant decrease in controllability. When facing complex airflows such as crosswinds and vortices, it is difficult to accurately adjust the flight trajectory, which reduces the accuracy of mission execution and deteriorates aerodynamic efficiency. The fixed tail fin attitude increases wind resistance, increases the energy consumption of UAVs, and shortens the flight range. In extreme cases, the failure of airflow adaptation may cause structural damage. If the tail fin cannot buffer the impact of airflow, it can easily lead to fatigue fracture of components.

[0004] Therefore, this utility model proposes a tail wing adjustment device for fixed-wing UAVs with a wind deflector to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tail wing adjustment device for fixed-wing UAVs with a wind deflector.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a tail fin adjustment device for a fixed-wing UAV with a wind deflector, including a tail fin, and further comprising:

[0007] A wind deflector assembly, comprising a connecting plate fixedly connected to the tail of the tail fin, wherein a wind deflector is provided on the connecting plate;

[0008] A deflection assembly includes a first electric push rod mounted on the tail fin, the output end of the first electric push rod being rotatably connected to a first rotating block, a limit block being connected to a connecting plate, the end of the first rotating block away from the first electric push rod being rotatably connected to the limit block, a rotating rod being rotatably connected at the connection between the first electric push rod and the first rotating block, and a movable seat being rotatably connected at the end of the rotating rod away from the first rotating block, the movable seat being slidably engaged with the connecting plate;

[0009] A support rod is connected to the movable base, and a second rotating block is rotatably connected to the top of the support rod. The air guide plate is connected to the second rotating block, and a second electric push rod is rotatably connected to the support rod. The output end of the second electric push rod is rotatably connected to the second rotating block.

[0010] Furthermore, the windward side of the air guide plate has microgrooves, the edge of the air guide plate has serrated notches, and the leeward side of the air guide plate is fixed with reinforcing ribs.

[0011] The beneficial effects of adopting the above-mentioned further solutions are: the micro-grooves on the windward side of the air guide plate can sort the airflow to form an orderly flow pattern, reduce airflow turbulence, the serrated notches on the edge can break the eddies, reduce wind resistance and noise, and the reinforcing ribs on the leeward side can increase the structural rigidity, prevent the air guide plate from deforming under strong airflow, ensure the stability of the airflow guiding posture, and ensure the continuous and reliable windproof and airflow guiding effect.

[0012] Furthermore, the windward side of the air guide plate is coated with a superhydrophobic anti-icing coating.

[0013] The beneficial effects of adopting the above-mentioned further solution are: the superhydrophobic anti-icing coating on the windward side of the wind deflector greatly reduces the adhesion of water molecules by utilizing the surface hydrophobic properties. When encountering low temperature and high humidity environments during flight, it can prevent water vapor from condensing into ice on the surface, avoid the ice layer from changing the aerodynamic shape of the wind deflector, prevent airflow failure caused by icing, and ensure the flight safety of the UAV in low temperature environments.

[0014] Furthermore, the windward surface of the air guide plate is provided with a wear-resistant and UV-resistant ceramic coating.

[0015] The beneficial effects of adopting the above-mentioned further solutions are: the wear-resistant and UV-resistant ceramic coating on the windward side of the air guide plate, through its dense structure, resists the scouring of particles in the airflow to achieve wear-resistant protection, while blocking the aging and corrosion of the substrate by ultraviolet rays. It can also form a lubricating protective film during high-temperature friction, and has self-lubricating properties, thus extending the service life of the air guide plate and making it suitable for complex flight environments.

[0016] Furthermore, a guide rail is connected to the bottom of the connecting plate corresponding to the movable seat, and a slider is connected to the side of the movable seat facing the guide rail, with the slider slidingly engaging with the guide rail.

[0017] The beneficial effects of adopting the above-mentioned further solution are: the guide rail of the connecting plate and the slider of the moving seat constitute a sliding mechanism, which provides precise guidance for the moving seat. When the rotating rod pushes and pulls the moving seat, the slider slides along the guide rail in a directional manner, limiting the offset of the moving seat, ensuring the linear accuracy of the position adjustment of the air guide plate during power transmission, and improving the reliability of the device operation.

[0018] Furthermore, a rubber limiting post is connected to the side of the support rod facing the second rotating block.

[0019] The beneficial effect of adopting the above-mentioned further solution is that when the second electric push rod drives the second rotating block to adjust the angle of the air guide plate to the inward limit position, the rubber limit post contacts the second rotating block, and the impact force is buffered by its own elasticity to limit excessive rotation, while avoiding damage to the components caused by rigid collision.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0021] In this invention, the first electric push rod extends and retracts, causing the first rotating block at the output end to rotate around the limiting block. Simultaneously, the connection between the first electric push rod and the first rotating block drives the rotating rod to push and pull the movable seat, causing the movable seat to slide along the connecting plate. The support rod drives the air guide plate to complete the position adjustment. When the air guide angle needs to be adjusted, the second electric push rod on the support rod extends and retracts, pushing the second rotating block to rotate around the top of the support rod. Since the air guide plate is fixedly connected to the second rotating block, the windward angle of the air guide plate can be precisely controlled, allowing the air guide plate to flexibly adjust its position and angle, thereby adapting to different flight airflow environments and improving the flight stability of the UAV. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the tail wing adjustment device for a fixed-wing UAV with a wind deflector according to the present invention.

[0023] Figure 2 This is a schematic diagram of the windproof guide component of the tail wing adjustment device for a fixed-wing UAV with a windproof guide plate according to this utility model.

[0024] Figure 3 This is a schematic diagram of the wind deflector structure of the tail wing adjustment device of the fixed-wing UAV with wind deflector according to this utility model;

[0025] Figure 4 This is a schematic diagram of the deflection component structure of the tail wing adjustment device for a fixed-wing UAV with a wind deflector plate according to this utility model.

[0026] Figure 5 This is a structurally disassembled schematic diagram of the deflection component of the tail wing adjustment device for a fixed-wing UAV with a wind deflector plate according to this utility model.

[0027] Figure label:

[0028] 1. Tail wing;

[0029] 2. Windproof and airflow guiding components; 21. Connecting plate; 22. Air guide plate; 23. Microgrooves; 24. Serrated notches; 25. Superhydrophobic and anti-icing coating; 26. Reinforcing ribs; 27. Wear-resistant and UV-resistant ceramic coating;

[0030] 3. Deflection assembly; 31. First electric push rod; 32. First rotating block; 33. Limiting block; 34. Rotating rod; 35. Moving seat; 36. Guide rail; 37. Slider; 38. Support rod; 39. Second rotating block; 310. Second electric push rod; 311. Rubber limiting post. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1-5 As shown, this embodiment provides a technical solution: a tail fin adjustment device for a fixed-wing UAV with a wind deflector, including a tail fin 1, and further comprising:

[0033] Windproof and airflow guiding component 2, the windproof and airflow guiding component 2 includes a connecting plate 21 fixed to the tail of the tail fin 1, and a wind guide plate 22 is provided on the connecting plate 21;

[0034] The deflection assembly 3 includes a first electric push rod 31 mounted on the tail fin 1. The output end of the first electric push rod 31 is rotatably connected to a first rotating block 32. A limit block 33 is connected to the connecting plate 21. The end of the first rotating block 32 away from the first electric push rod 31 is rotatably connected to the limit block 33. A rotating rod 34 is rotatably connected at the connection between the first electric push rod 31 and the first rotating block 32. A movable seat 35 is rotatably connected at the end of the rotating rod 34 away from the first rotating block 32. The movable seat 35 is slidably engaged with the connecting plate 21.

[0035] A support rod 38 is connected to the movable seat 35. A second rotating block 39 is rotatably connected to the top of the support rod 38. The air guide plate 22 is connected to the second rotating block 39. A second electric push rod 310 is rotatably connected to the support rod 38. The output end of the second electric push rod 310 is rotatably connected to the second rotating block 39. The extension and retraction of the first electric push rod 31 drives the first rotating block 32 at its output end to rotate around the limiting block 33. At the same time, the connection between the first electric push rod 31 and the first rotating block 32 drives the rotating rod 34 to push and pull the movable seat 35, causing the movable seat 35 to slide along the connecting plate 21. The position of the air guide plate 22 is adjusted by the support rod 38. When the air guide angle needs to be adjusted, the second electric push rod 310 on the support rod 38 extends and retracts, pushing the second rotating block 39 to rotate around the top of the support rod 38. Since the air guide plate 22 is fixedly connected to the second rotating block 39, the windward angle of the air guide plate 22 can be precisely controlled, allowing the air guide plate 22 to flexibly adjust its position and angle, thereby adapting to different flight airflow environments and improving the flight stability of the UAV.

[0036] like Figures 1-3 As shown, the windward side of the air guide plate 22 has microgrooves 23, and the edge of the air guide plate 22 has serrated notches 24. A reinforcing rib 26 is fixedly connected to the leeward side of the air guide plate 22. The microgrooves 23 on the windward side of the air guide plate 22 can organize the airflow into an orderly flow pattern, reducing airflow turbulence. The serrated notches 24 on the edge can break up eddies, reducing wind resistance and noise. The reinforcing rib 26 on the leeward side increases structural rigidity, preventing the air guide plate 22 from deforming under strong airflow, ensuring stable airflow orientation, and guaranteeing a continuous and reliable windproof and airflow guiding effect. The windward side of the air guide plate 22 is coated with a superhydrophobic anti-icing coating 25. The superhydrophobic anti-icing coating 25 on the windward side of the air guide plate 22 utilizes… The surface hydrophobic properties significantly reduce the adhesion of water molecules. When encountering low temperature and high humidity environments during flight, it can prevent water vapor from condensing into ice on the surface, avoid the ice layer from changing the aerodynamic shape of the air guide plate 22, prevent airflow failure caused by icing, and ensure the flight safety of the UAV in low temperature environments. The windward surface of the air guide plate 22 is provided with a wear-resistant and UV-resistant ceramic coating 27. The wear-resistant and UV-resistant ceramic coating 27 on the windward surface of the air guide plate 22 achieves wear resistance protection by resisting the scouring of particles in the airflow through a dense structure. At the same time, it blocks the aging and corrosion of the substrate by ultraviolet rays. It can also form a lubricating protective film during high temperature friction, and has self-lubricating properties, extending the service life of the air guide plate 22 and adapting to complex flight environments.

[0037] like Figures 1-2 as well as Figures 4-5 As shown, a guide rail 36 is connected to the bottom of the connecting plate 21 corresponding to the movable seat 35. A slider 37 is connected to the side of the movable seat 35 facing the guide rail 36. The slider 37 slides with the guide rail 36. The guide rail 36 of the connecting plate 21 and the slider 37 of the movable seat 35 form a sliding mechanism to provide precise guidance for the movable seat 35. When the rotating rod 34 pushes or pulls the movable seat 35, the slider 37 slides along the guide rail 36 in a directional manner, limiting the offset of the movable seat 35, ensuring the linear accuracy of the position adjustment of the air guide plate 22 during power transmission, and improving the reliability of the device operation. A rubber limiting post 311 is connected to the side of the support rod 38 facing the second rotating block 39. When the second electric push rod 310 drives the second rotating block 39 to adjust the angle of the air guide plate 22 to the inward limit position, the rubber limiting post 311 contacts the second rotating block 39, and buffers the impact force through its own elasticity to limit excessive rotation, while avoiding damage to the components caused by rigid collision.

[0038] Working principle:

[0039] like Figures 1-5As shown, in the deflection assembly 3, the first electric push rod 31 is fixed to the tail fin 1. Its extension and retraction drive the first rotating block 32 at the output end to rotate around the limiting block 33 on the connecting plate 21. At the same time, the connection between the first electric push rod 31 and the first rotating block 32 drives the rotating rod 34 to push and pull the moving seat 35. The guide rail 36 on the connecting plate 21 and the slider 37 of the moving seat 35 form a precise guiding mechanism, which limits the offset of the moving seat 35 and ensures that it slides linearly along the connecting plate 21. Then, the support rod 38 on the moving seat 35 drives the air guide plate 22 to complete the longitudinal position adjustment. The second rotating block 39 at the top of the support rod 38 is fixed to the air guide plate 22. When the second electric push rod 310 on the support rod 38 extends and retracts, it pushes the second rotating block 39 to rotate around the top of the support rod 38, directly changing the windward angle of the air guide plate 22. The rubber limiting post 311 on the support rod 38 can elastically move when the air guide plate 22 is retracted to the limit position. Contact with the second rotating block 39 buffers the impact force and avoids rigid damage, ensuring the safety and reliability of angle adjustment. This allows the air guide plate 22 to adapt to different flight airflow field requirements. The microgrooves 23 on the windward side of the air guide plate 22 can organize the airflow to form an orderly flow pattern and reduce turbulence. The serrated notches 24 on the edge can break up the wake vortex, reduce wind resistance and flight noise, and meet the aerodynamic optimization requirements. The reinforcing ribs 26 on the leeward side increase the structural rigidity and prevent the air guide plate 22 from deforming under strong airflow, ensuring the stability of the airflow orientation. The superhydrophobic anti-icing coating 25 on the windward side can reduce water molecule adhesion and prevent icing in low temperature and high humidity environments from changing the aerodynamic shape. The wear-resistant and UV-resistant ceramic coating 27 resists particle erosion and UV corrosion through a dense structure. At high temperatures, it forms a lubricating protective film to extend the service life. This allows for flexible adjustment of the position and angle of the air guide plate 22, adapting to various flight airflow environments and ensuring flight stability.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tail fin adjustment device for a fixed-wing unmanned aerial vehicle with a wind deflector, comprising a tail fin (1), characterized in that, Also includes: Windproof and airflow guiding component (2), the windproof and airflow guiding component (2) includes a connecting plate (21) fixed to the tail of the tail fin (1), and a wind guide plate (22) is provided on the connecting plate (21); A deflection assembly (3) includes a first electric push rod (31) mounted on the tail fin (1), the output end of the first electric push rod (31) is rotatably connected to a first rotating block (32), a limit block (33) is connected on the connecting plate (21), the end of the first rotating block (32) away from the first electric push rod (31) is rotatably connected to the limit block (33), a rotating rod (34) is rotatably connected at the connection between the first electric push rod (31) and the first rotating block (32), and a movable seat (35) is rotatably connected at the end of the rotating rod (34) away from the first rotating block (32), and the movable seat (35) is slidably engaged with the connecting plate (21); A support rod (38) is connected to the movable seat (35). A second rotating block (39) is rotatably connected to the top of the support rod (38). The air guide plate (22) is connected to the second rotating block (39). A second electric push rod (310) is rotatably connected to the support rod (38). The output end of the second electric push rod (310) is rotatably connected to the second rotating block (39).

2. The fixed-wing UAV tail fin adjustment device with wind deflector as described in claim 1, characterized in that: The windward side of the air guide plate (22) is provided with micro-grooves (23), the edge of the air guide plate (22) is provided with serrated notches (24), and the leeward side of the air guide plate (22) is fixed with reinforcing ribs (26).

3. The fixed-wing UAV tail fin adjustment device with wind deflector as described in claim 1, characterized in that: The windward side of the air guide plate (22) is coated with a superhydrophobic anti-icing coating (25).

4. The tail fin adjustment device for a fixed-wing UAV with a wind deflector as described in claim 1, characterized in that: The windward side of the air guide plate (22) is provided with a wear-resistant and UV-resistant ceramic coating (27).

5. The tail fin adjustment device for a fixed-wing UAV with a wind deflector as described in claim 1, characterized in that: A guide rail (36) is connected to the bottom of the connecting plate (21) corresponding to the movable seat (35). A slider (37) is connected to the side of the movable seat (35) facing the guide rail (36). The slider (37) slides with the guide rail (36).

6. The tail fin adjustment device for a fixed-wing UAV with a wind deflector as described in claim 1, characterized in that: The support rod (38) is connected to a rubber limiting post (311) on the side facing the second rotating block (39).

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