Tilting mechanism of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle tilting mechanism. The unmanned aerial vehicle comprises a mounting frame, a rotating shaft rotationally connected to the mounting frame and a flying assembly arranged on the rotating shaft. The motor is fixed on the mounting frame, the screw rod is arranged on an output shaft of the motor, the sliding block is in threaded fit with the screw rod and is connected in the mounting frame in a sliding mode, the rotating block is rotationally connected to the sliding block, the connecting rod is connected with the rotating block and the rotating shaft, the motor is electrically connected with the controller, and when the motor works, the screw rod can be driven to rotate. The screw rotates to drive the sliding block to slide, the sliding block slides to drive the rotating block to rotate, and finally the rotating shaft is driven to rotate to achieve tilting. The tilting mechanism of the unmanned aerial vehicle is compact in structure and has a self-locking function.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV tilting mechanism. Background Technology

[0002] Drones are typically equipped with a tilt mechanism, which is a core device that switches between vertical take-off and landing and horizontal cruise modes by changing the direction of the rotor or wing.

[0003] The tilting mechanism in the existing technology is mainly controlled by a servo motor. However, the servo motor is mainly controlled by a motor driving a gear set. The overall size is not compact enough, and because the gear does not have a self-locking function, it is easy to tilt under the action of external force. Utility Model Content

[0004] The technical solution to be solved by this utility model is to provide a compact drone tilting mechanism with a self-locking function.

[0005] The technical solution adopted by this utility model is: a tilting mechanism for unmanned aerial vehicles (UAVs), comprising a mounting frame, a rotating shaft rotatably connected to the mounting frame, and a flight component mounted on the rotating shaft. It also includes a controller, a motor fixed to the mounting frame, a screw mounted on the motor's output shaft, a slider slidably connected to the screw within the mounting frame via a threaded connection, a rotating block rotatably connected to the slider, and a connecting rod connecting the rotating block and the rotating shaft. The motor is electrically connected to the controller.

[0006] When the motor is working, it can drive the screw to rotate, the screw rotation can drive the slider to slide, the slider sliding can drive the rotating block to rotate, and finally drive the shaft to rotate to achieve tilting.

[0007] Preferably, the mounting frame includes a base frame and side frames disposed on both sides of the base frame. The side frames are provided with rotating holes for the rotating shaft to pass through and rotate. The motor is mounted on the base frame, and the base frame is also provided with a sliding groove for the slider to slide.

[0008] Preferably, the slider has a threaded hole in the middle that mates with the screw thread, and a rotating seat is provided at the upper end of the slider, with the rotating block rotating vertically on the rotating seat.

[0009] Preferably, guide holes are provided on both sides of the slider, and guide rods for guiding the slider are inserted through the guide holes.

[0010] Preferably, the rotating shaft is provided with a mounting hole, one end of the connecting rod passes through the mounting hole, and the other end of the connecting rod is connected to the rotating block.

[0011] Preferably, the mounting bracket is also provided with a limit switch for limiting the movement position of the slider, and the limit switch is electrically connected to the controller.

[0012] Preferably, a baffle is provided on one side of the slider, and there are two limit switches, namely a first limit switch and a second limit switch.

[0013] When the slider moves to the first position, the stop triggers the first limit switch;

[0014] When the slider moves to the second position, the stop triggers the second limit switch.

[0015] Compared with the prior art, the present invention has the following advantages: the tilting is achieved by the linkage between the motor, screw, slider, rotating block and rotating shaft, the structure is relatively compact, and because the motor drives the screw instead of the gear set, it has a certain self-locking function, so it is not easy to tilt under the action of external force.

[0016] By setting guide holes and guide rods, the slider will only move in the set direction of movement, which can better achieve tilt control.

[0017] Setting a limit switch ensures that the slider's movement will not exceed the set range, resulting in more accurate control. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a drone tilting mechanism according to this utility model.

[0019] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0020] Figure 3 This is a schematic diagram of the structure of a UAV tilting mechanism after removing the rotating shaft and flight components.

[0021] Figure 4 This is a schematic diagram of the mounting frame in the tilting mechanism of a drone according to this utility model.

[0022] Figure 5 This is a schematic diagram of the slider in the tilting mechanism of a drone according to this utility model.

[0023] As shown in the figure: 1. Mounting bracket; 2. Rotating shaft; 3. Flight assembly; 4. Motor; 5. Screw; 6. Slider; 7. Rotating block; 8. Connecting rod; 9. Base frame; 10. Side frame; 11. Rotating hole; 12. Slide groove; 13. Threaded hole; 14. Rotating seat; 15. Guide hole; 16. Mounting hole; 17. Limit switch; 18. Baffle. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] Example 1:

[0026] A tilting mechanism for an unmanned aerial vehicle (UAV) includes a mounting frame 1, a rotating shaft 2, a flight assembly 3, a controller, a motor 4, a screw 5, a slider 6, a rotating block 7, and a connecting rod 8, wherein:

[0027] Mounting bracket 1 includes a base frame 9 and side frames 10 arranged on both sides of the base frame 9. The side frames 10 are fixed to both sides of the base frame 9. The side frames 10 are provided with rotating holes 11, and bearings are provided in the rotating holes 11, so that the rotating shaft 2 can be inserted into the rotating holes 11 and rotate freely.

[0028] The pivot 2 passes through the rotation holes 11 of the two side frames 10 and can rotate freely. Flight components 3 are provided on both sides of the pivot 2 to drive the entire drone to fly.

[0029] Flight component 3, in this embodiment, is a rotor assembly, which is a very conventional component in the prior art, so it is not described in detail here;

[0030] The controller, mainly a control board, is installed inside the base frame 9 and is used to control the operation of the flight component 3 and the motor 4;

[0031] Motor 4 is fixed inside the base frame 9. Motor 4 is fixed on both sides by fixing plates. A screw 5 is connected to the output shaft of motor 4. When motor 4 is working, it can drive screw 5 to rotate.

[0032] Screw 5 is fixed on the output shaft of motor 4, and can be driven to rotate when motor 4 is working;

[0033] The slider 6 is slidably connected in the groove 12 inside the base frame 9. A threaded hole 13 is provided in the middle, which is threaded to match the screw 5. When the screw 5 rotates, it can drive the slider 6 to move back and forth. A rotating seat 14 is provided at the upper end of the slider 6. The rotating seat 14 mainly includes two vertical rotating plates with rotating holes, which are used to vertically rotate the rotating block 7.

[0034] The rotating block 7 is vertically rotatably connected to the rotating seat 14 at the upper end of the slider 6. Its lower part is arc-shaped so that it will not contact the rotating seat 14 when rotating. Its upper part is connected to a connecting rod 8. When the rotating block 7 rotates, it can drive the connecting rod 8 to rotate together.

[0035] The connecting rod 8 is connected to the rotating block 7 at one end and passes through the mounting hole 16 on the rotating shaft 2 at the other end. In this way, when the connecting rod 8 rotates with the rotating block 7, it can drive the rotating shaft 2 to rotate together, thereby achieving tilting.

[0036] The working principle of this embodiment is as follows: the motor 4 drives the screw 5 to rotate, the screw 5 rotates and drives the slider 6 to move, the slider 6 moves and drives the rotating block 7 to rotate, and the rotating block 7 rotates and drives the rotating shaft 2 to rotate. In this way, the motor 4 drives the rotating shaft 2 to rotate, and the overall tilting of the UAV is achieved.

[0037] Example 2:

[0038] The difference from Embodiment 1 is that Embodiment 2 also includes two limit switches 17, namely a first limit switch and a second limit switch. These two limit switches 17 are installed inside the base frame 9, mainly to detect whether the slider 6 has reached the limit. In this embodiment, these two limit switches 17 are contact switches, and a stop extends from one side of the slider 6. When the slider 6 moves to the first limit position, the stop will trigger the first limit switch. When the slider 6 moves to the second limit position, the stop will trigger the second limit switch. In this way, the rotating shaft 2 will not rotate excessively when tilting.

[0039] Example 3:

[0040] The difference from Embodiment 1 is that in Embodiment 3, two guide holes 15 are provided on both sides of the slider 6, and a guide hole 15 is also provided at the corresponding position of the base frame 9. The guide rod passes through the guide hole 15 on the base frame 9 and the slider 6, so that the slider 6 can be guided. When the motor 4 is working, the slider 6 will move along the set movement trajectory, which is more stable.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0042] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be considered as covering all changes and modifications that encompass the true intent and scope of this utility model. Any and all equivalent scope and content within the scope of the claims should be considered as still falling within the intent and scope of this utility model.

Claims

1. A tilting mechanism for an unmanned aerial vehicle (UAV), comprising a mounting frame (1), a rotating shaft (2) rotatably connected to the mounting frame (1), and a flight assembly (3) disposed on the rotating shaft (2), characterized in that: It also includes a controller, a motor (4) fixed on a mounting bracket (1), a screw (5) mounted on the output shaft of the motor (4), a slider (6) slidably connected to the screw (5) within the mounting bracket (1), a rotating block (7) rotatably connected to the slider (6), and a connecting rod (8) connecting the rotating block (7) and the rotating shaft (2). The motor (4) is electrically connected to the controller. When the motor (4) is working, it can drive the screw (5) to rotate. The rotation of the screw (5) can drive the slider (6) to slide. The sliding of the slider (6) can drive the rotating block (7) to rotate. Finally, it drives the rotating shaft (2) to rotate to achieve tilting.

2. The unmanned aerial vehicle tilting mechanism of claim 1, wherein: The mounting frame (1) includes a base frame (9) and side frames (10) on both sides of the base frame (9). The side frames (10) are provided with a rotating hole (11) through which the rotating shaft (2) passes and rotates. The motor (4) is mounted on the base frame (9), and the base frame (9) is also provided with a sliding groove (12) for the slider (6) to slide.

3. The unmanned aerial vehicle tilting mechanism of claim 1, wherein: The slider (6) has a threaded hole (13) in the middle that is threaded to the screw (5), and a rotating seat (14) is provided at the upper end of the slider (6). The rotating block (7) rotates vertically on the rotating seat (14).

4. The unmanned aerial vehicle tilting mechanism of claim 3, wherein: The slider (6) is also provided with guide holes (15) on both sides, and a guide rod for guiding the slider (6) is inserted in the guide hole (15).

5. The unmanned aerial vehicle tilting mechanism of claim 3, wherein: The rotating shaft (2) is provided with a mounting hole (16), one end of the connecting rod (8) passes through the mounting hole (16), and the other end of the connecting rod (8) is connected to the rotating block (7).

6. The unmanned aerial vehicle tilting mechanism of claim 3, wherein: The mounting bracket (1) is also provided with a limit switch (17) for limiting the movement position of the slider (6), and the limit switch (17) is electrically connected to the controller.

7. The unmanned aerial vehicle tilting mechanism of claim 6, wherein: A baffle (18) is provided on one side of the slider (6), and there are two limit switches (17), namely a first limit switch and a second limit switch. When the slider (6) moves to the first position, the stop triggers the first limit switch; When the slider (6) moves to the second position, the stop triggers the second limit switch.

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