A front wheel turning electric rudder controller for a drone

Abstract

The utility model relates to electric servo control technical field discloses a kind of unmanned aerial vehicle front wheel turning electric steering gear controller, including protective cover, the top of protective cover is rotatably connected with rotating column, the inside fixed connection of rotating column has pneumatic cylinder, the top fixed connection of rotating column has fixed plate, the outside fixed connection of fixed plate has fixed block, the outside rotatably connected with follow-up plate of fixed block, the drive end fixed connection of pneumatic cylinder has top plate, the top fixed connection of top plate has a plurality of locating block, the one end rotatably connected of follow-up plate is in the outside of locating block.The utility model in, when running, need to adapt rotating plate, when rotating plate specification is different, start pneumatic cylinder and drive top plate to move, top plate is pulled follow-up plate and driven plate by locating block, fixed block limit follow-up plate fulcrum, top plate linear motion is converted into support plate symmetrical opening and closing, realize the self-adapting clamping of different rotating plate.

Description

Technical Field

[0001] This utility model relates to the field of electric servo control technology, and in particular to an electric servo controller for turning the front wheel of a drone. Background Technology

[0002] An electric servo controller for the front wheel steering of a drone is a core control device specifically designed for the front wheel steering of a drone landing gear. It is a key component in the intersection of electric servo control and drone landing gear technology. It receives commands from the drone's flight control system or ground control, and combines real-time feedback data from the front wheel steering angle sensor, drone speed, and attitude. Using built-in servo control algorithms (such as PID control), it precisely drives the electric servo to achieve dynamic adjustment and precise positioning of the front wheel steering angle.

[0003] Ensuring that UAVs can flexibly control their turning amplitude and response speed according to flight mission requirements (such as route correction and runway turning) during ground taxiing, takeoff taxiing, landing turning and parking adjustment scenarios, while ensuring the stability and safety of the turning process through overload protection, fault diagnosis and other functions, and avoiding ground accidents caused by over-turning, jamming or delay, is an important guarantee for the ground mobility and operational safety of UAVs.

[0004] Existing technologies generally suffer from insufficient compatibility and cumbersome operation in installation scenarios involving connectors of different diameters. They often require the design of special installation structures for specific diameters or the use of additional tools (such as wrenches and adjusting shims) for adaptation. During installation, repeated calibration of dimensions and adjustment of the position of fasteners are necessary, which is not only time-consuming and labor-intensive, but also prone to problems such as loose connections and positioning deviations due to size mismatch errors. It is difficult to achieve rapid and stable assembly of connectors of different diameters. Especially in scenarios with high requirements for installation efficiency and compatibility (such as UAV component assembly and modular docking of industrial equipment), this limitation will significantly affect the overall assembly efficiency and ease of use. To address these issues, a UAV front wheel turning electric servo controller is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an electric servo controller for the front wheel turning of a drone, which aims to improve the problem that the existing technology requires repeated calibration of dimensions and adjustment of the position of fixing parts during installation, which is not only time-consuming and laborious, but also prone to problems such as loose connection and positioning deviation due to size matching errors.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electric servo controller for turning the front wheel of a drone includes a protective cover. A rotating column is rotatably connected to the top of the protective cover. A pneumatic cylinder is fixedly connected inside the rotating column. A fixed plate is fixedly connected to the top of the rotating column. A fixed block is fixedly connected to the outside of the fixed plate. A follower plate is rotatably connected to the outside of the fixed block. A top plate is fixedly connected to the drive end of the pneumatic cylinder. Multiple positioning blocks are fixedly connected to the top of the top plate. One end of the follower plate is rotatably connected to the outside of the positioning blocks. A limit groove is formed at the bottom of the protective cover. A quick-installation assembly is fixedly connected inside the limit groove.

[0008] As a further description of the above technical solution:

[0009] The quick-installation assembly includes multiple protective posts, the tops of which are fixedly connected to the inside of the limiting groove. A rubber groove is fixedly connected inside the protective post, and a spring is fixedly connected to the other end of the rubber groove. A limiting ring is fixedly connected to the other end of the spring.

[0010] As a further description of the above technical solution:

[0011] The protective column is slidably connected to a support column inside, and the top of the support column is in contact with the bottom of the rubber groove.

[0012] As a further description of the above technical solution:

[0013] The inner part of the limiting ring is slidably connected to the inside of the support column, and the outer part of the support column is slidably connected to the inside of the spring.

[0014] As a further description of the above technical solution:

[0015] A base plate is fixedly connected to the bottom of the support column, and the top of the base plate is in contact with the bottom of the protective cover.

[0016] As a further description of the above technical solution:

[0017] The positioning block is rotatably connected to a driven plate at its outer end, and a support plate is rotatably connected to the other end of the driven plate.

[0018] As a further description of the above technical solution:

[0019] The other end of the follower plate is rotatably connected to the outside of the support plate, and the drive end of the pneumatic cylinder is slidably connected to the inside of the fixed plate.

[0020] As a further description of the above technical solution:

[0021] A connecting plate is fixedly connected to the outside of the support plate, and a rubber block is fixedly connected to the outside of the connecting plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the rotating plate needs to be adapted during operation. When the rotating plate specifications are different, the pneumatic cylinder is activated to drive the top plate to move. The top plate pulls the follower plate and the driven plate through the positioning block. The fixed block restricts the fulcrum of the follower plate, converting the linear motion of the top plate into the symmetrical opening and closing of the support plate, so as to realize the adaptive clamping of different rotating plates.

[0024] 2. In this utility model, during installation, the protective column of the protective cover is aligned with the support column and inserted. The support column first contacts the rubber groove, and the rubber groove elastically deforms to absorb the impact force. Then, the spring is compressed to provide buffering, and finally the limiting ring locks the support column, realizing the rapid fixing of the protective cover and the base plate. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an electric servo controller for turning the front wheel of a drone, as proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a protective cover for an electric servo controller for turning the front wheel of a drone, as proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Protective cover; 2. Rotating column; 3. Pneumatic cylinder; 4. Fixing plate; 5. Top plate; 6. Fixing block; 7. Positioning block; 8. Follower plate; 9. Driven plate; 10. Support plate; 11. Connecting plate; 12. Rubber block; 13. Limiting groove; 14. Protective column; 15. Rubber groove; 16. Spring; 17. Limiting ring; 18. Supporting column; 19. Base plate. 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] Reference Figures 1 to 3This utility model provides an embodiment of an electric servo controller for the front wheel turning of a drone, including a protective cover 1. A rotating column 2 is rotatably connected to the top of the protective cover 1, and its rotation axis is arranged coaxially with the steering axis of the drone's front wheel to ensure accurate transmission of steering torque. A pneumatic cylinder 3 is fixedly connected inside the rotating column 2, which achieves stepless speed regulation control through pneumatic drive. A fixed plate 4 is fixedly connected to the top of the rotating column 2 to form a rigid support base. A fixed block 6 is fixedly connected to the outside of the fixed plate 4 as the fulcrum of the follower mechanism. A follower plate 8 is rotatably connected to the outside of the fixed block 6 to form the active arm of the four-bar linkage. A top plate 5 is fixedly connected to the driving end of the pneumatic cylinder 3 to convert linear motion into planar displacement. Multiple positioning blocks 7 are fixedly connected to the top of the top plate 5 to form an adjustable clamping reference surface. One end of the follower plate 8 is rotatably connected to the outside of the positioning block 7 to form a closed loop of force transmission. A limit groove 13 is opened at the bottom of the protective cover 1 to provide installation guidance function. A quick installation component is fixedly connected inside the limit groove 13 to achieve compatible installation of rotating plates of different specifications.

[0033] The external rotatable connection of the positioning block 7 is the driven plate 9, which forms the driven arm of the four-bar linkage. The other end of the driven plate 9 is rotatably connected to the support plate 10, forming a variable geometry clamping port. When the pneumatic cylinder 3 pushes the top plate 5 to move, the positioning block 7 drives the driven plate 9 to deflect synchronously, causing the support plate 10 to produce radial displacement. The amount of displacement is linearly related to the stroke of the pneumatic cylinder 3.

[0034] The other end of the follower plate 8 is rotatably connected to the outside of the support plate 10 to form a motion coupling mechanism. The drive end of the pneumatic cylinder 3 is slidably connected to the inside of the fixed plate 4. The linear motion accuracy is ensured by the precision guide rail. The fixed block 6 limits the rotation range of the follower plate 8 to ensure the maximum angle of the support plate 10 and prevent the mechanism from dead point.

[0035] Reference Figure 2 and Figure 4 The quick-installation assembly includes multiple protective posts 14 made of high-rigidity alloy material to prevent deformation. The tops of the multiple protective posts 14 are fixedly connected to the inside of the limiting groove 13, forming a vertically downward installation force transmission path. The inside of the protective post 14 is fixedly connected to a rubber groove 15, providing radial elastic deformation space. The other end of the rubber groove 15 is fixedly connected to a spring 16, generating axial preload. The other end of the spring 16 is fixedly connected to a limiting ring 17, forming a self-locking buckle structure. When the support post 18 is inserted, the rubber groove 15 undergoes elastic deformation, which, in conjunction with the compression of the spring 16, causes the limiting ring 17 to generate radial clamping force, achieving the anti-loosening function after installation.

[0036] The protective column 14 is internally slidably connected to a support column 18. The top of the support column 18 contacts the bottom of the rubber groove 15, forming a bidirectional force transmission interface. This design allows the support column 18 to bear the weight of the rotating plate, and the pressure is evenly distributed to the inner wall of the protective column 14 through the rubber groove 15, avoiding stress concentration. The limiting ring 17 is internally slidably connected to the inside of the support column 18, forming a secondary guide structure. The support column 18 is externally slidably connected to the inside of the spring 16, realizing dynamic preload adjustment. When the rotating plate is subjected to vibration, the spring 16 can absorb high-frequency vibration energy, and the fit gap between the limiting ring 17 and the support column 18 can automatically compensate for thermal deformation.

[0037] Reference Figure 1 and Figure 2 The top of the base plate 19 contacts the bottom of the protective cover 1, and torque balance is achieved through surface contact. During the turning operation, the contact surface between the base plate 19 and the protective cover 1 generates frictional damping, which effectively suppresses the overshoot phenomenon during turning. The support plate 10 is externally fixedly connected to the connecting plate 11 as a modular interface. The connecting plate 11 is externally fixedly connected to the rubber block 12. When the rubber block 12 contacts the rotating plate, it undergoes moderate deformation, which ensures sufficient static friction without damaging the surface of the rotating plate. It can effectively suppress slippage when the UAV turns. When the turning torque increases, the deformation of the rubber block 12 increases accordingly. The torque is smoothly transmitted through the adaptive expansion of the contact area.

[0038] Working principle: Pick up the protective cover 1 and align the protective column 14 with the support column 18 and insert it into the rubber groove 15. During the insertion process, the support column 18 first contacts the rubber groove 15, and the rubber groove 15 undergoes elastic deformation to absorb the initial impact force. Then the spring 16 begins to compress, providing buffer damping. Finally, the limiting ring 17 locks the support column 18, achieving rapid fixation. This connection method can effectively isolate the high-frequency vibration generated during the flight of the drone.

[0039] When using the electric steering controller for front wheel turning, a rotating plate needs to be added. When the specifications of the rotating plate are different, the pneumatic cylinder 3 is activated to drive the top plate 5 to move. The top plate 5 pulls the follower plate 8 and the driven plate 9 through the positioning block 7. Since the fixed block 6 restricts the fulcrum position of the follower plate 8, the linear motion of the top plate 5 is accurately converted into the symmetrical opening or closing action of the support plate 10, realizing adaptive clamping for rotating plates of different specifications. The use of rubber block 12 not only increases the friction with the rotating plate, but also absorbs the impact energy during the rotation of the rotating plate, thus improving the rotational stability of the rotating plate.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A UAV front wheel steering electric servo controller, comprising a protective cover (1), characterized in that: The top of the protective cover (1) is rotatably connected to a rotating column (2), and a pneumatic cylinder (3) is fixedly connected inside the rotating column (2). A fixing plate (4) is fixedly connected to the top of the rotating column (2), and a fixing block (6) is fixedly connected to the outside of the fixing plate (4). A follower plate (8) is rotatably connected to the outside of the fixing block (6). A top plate (5) is fixedly connected to the driving end of the pneumatic cylinder (3). A plurality of positioning blocks (7) are fixedly connected to the top of the top plate (5). One end of the follower plate (8) is rotatably connected to the outside of the positioning block (7). A limit groove (13) is opened at the bottom of the protective cover (1), and a quick-installation assembly is fixedly connected inside the limit groove (13).

2. The electric servo controller for turning the front wheel of an unmanned aerial vehicle according to claim 1, characterized in that: The quick-installation assembly includes multiple protective posts (14), the tops of which are fixedly connected to the inside of the limiting groove (13). A rubber groove (15) is fixedly connected inside the protective post (14), and a spring (16) is fixedly connected to the other end of the rubber groove (15). A limiting ring (17) is fixedly connected to the other end of the spring (16).

3. The electric servo controller for turning the front wheel of an unmanned aerial vehicle according to claim 2, characterized in that: The protective column (14) is slidably connected to a support column (18), and the top of the support column (18) is in contact with the bottom of the rubber groove (15).

4. The electric servo controller for turning the front wheel of an unmanned aerial vehicle according to claim 3, characterized in that: The inner part of the limiting ring (17) is slidably connected to the inside of the support column (18), and the outer part of the support column (18) is slidably connected to the inside of the spring (16).

5. The electric servo controller for turning the front wheel of a UAV according to claim 4, characterized in that: The bottom of the support column (18) is fixedly connected to a base plate (19), and the top of the base plate (19) is in contact with the bottom of the protective cover (1).

6. The electric servo controller for turning the front wheel of an unmanned aerial vehicle according to claim 1, characterized in that: The positioning block (7) is rotatably connected to a driven plate (9), and the other end of the driven plate (9) is rotatably connected to a support plate (10).

7. A UAV front wheel steering electric servo controller according to claim 6, characterized in that: The other end of the follower plate (8) is rotatably connected to the outside of the support plate (10), and the driving end of the pneumatic cylinder (3) is slidably connected to the inside of the fixed plate (4).

8. A UAV front wheel steering electric servo controller according to claim 6, characterized in that: The support plate (10) is fixedly connected to the outside of a connecting plate (11), and the connecting plate (11) is fixedly connected to the outside of a rubber block (12).

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