Gravity center adjusting device for unmanned aerial vehicle

Abstract

Rib plates are fixedly installed at the two ends of a cross beam, a second lead screw is installed between the lower ends of the two rib plates, a balance weight ball is connected to the second lead screw in a penetrating mode, and a displacement dial is fixedly installed at the front ends of the two rib plates together. The first lead screw is installed in the center of the cross beam, the upper end of the first lead screw is fixedly connected with a dial fixing block, a corner dial is arranged on the dial fixing block, and a rotating shaft is rotationally connected between the dial fixing block and the connecting block through a bearing. Adjustment of the gravity center of the unmanned aerial vehicle is achieved through horizontal movement of the balance weight ball and angle rotation of the rotating shaft, a pure mechanical gravity center changing structure reduces dependence of electronic elements, reduces long-term maintenance cost, simplifies the gravity center adjusting process, improves adjusting efficiency and accuracy, and is suitable for large-scale popularization and application. And powerful support is provided for flight control and stability of the unmanned aerial vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to a UAV center of gravity adjustment device. Background Technology

[0002] With the rapid development of technology, drone technology has advanced by leaps and bounds. Traditional drone flight control involves inputting commands via a remote controller, which are then interpreted by the drone's internal flight control system to adjust motor speeds, thereby changing the drone's flight attitude and position. The drone's center of gravity is crucial to its flight stability and maneuverability.

[0003] Therefore, conducting research on the impact of UAV center of gravity deviation on UAV battery energy consumption and dynamic performance is of great theoretical significance for the development of UAVs and UAV payload layout. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a drone center of gravity adjustment device. This device is used to test the dynamic performance of the drone under conditions of center of gravity deviation, providing theoretical support for drone design and payload arrangement. The device quantitatively changes the position of the drone's center of gravity by adjusting the counterweight ball, thereby conducting research on the impact of the drone's center of gravity on battery energy consumption and dynamic performance.

[0005] The technical problem solved by this utility model is achieved through the following technical solution:

[0006] A drone center of gravity adjustment device includes a horizontal adjustment unit and a rotation adjustment unit that are connected in conjunction. The horizontal adjustment unit includes a crossbeam, ribs, and a second lead screw. The ribs are fixedly installed at both ends of the crossbeam. The second lead screw is installed between the lower ends of the two ribs. A counterweight ball is threaded onto the second lead screw. A displacement scale is fixedly installed at the front ends of the two ribs. The displacement scale records the displacement of the counterweight ball sliding along the second lead screw. The rotation adjustment unit includes a first lead screw, a scale fixing block, a rotating shaft, and a connecting block. The first lead screw is installed at the center of the crossbeam. The upper end of the first lead screw is fixedly connected to the scale fixing block. An angle scale is provided on the scale fixing block. The rotating shaft is rotatably connected to the scale fixing block and the connecting block through a bearing. The top end of the connecting block is connected to the drone.

[0007] Moreover, the beam is an I-beam shaped beam.

[0008] Furthermore, the front and rear ends of the crossbeam are uniformly reinforced at the center position.

[0009] Furthermore, a locking ring is fixedly installed on the upper part of the dial fixing block, and a locking screw is radially positioned on the locking ring. The rotation of the locking screw locks the rotating shaft.

[0010] Furthermore, the first lead screw is connected to the crossbeam by a thread.

[0011] Moreover, the connecting block is connected to the drone by screws or adhesive.

[0012] The advantages and beneficial effects of this utility model are as follows:

[0013] 1. The purely mechanical center of gravity shifting structure of this utility model reduces reliance on electronic components and lowers long-term maintenance costs. It not only simplifies the center of gravity adjustment process but also improves the efficiency and accuracy of the adjustment, providing strong support for the flight control and stability of UAVs.

[0014] 2. This utility model can combine counterweight balls while keeping the center of mass coordinates unchanged, providing conditions for testing the center of mass deviation of different weights; it can quantitatively adjust the test position of the counterweight balls, providing conditions for studying the influence under different eccentric distance conditions; it can rotate around the center of mass line of the UAV, and can examine the influence relationship between the eccentric position and the rotor angle.

[0015] 3. This utility model is connected to the main structure of the drone and can move back and forth along a preset track and rotate at a certain angle. It is equipped with a precision measuring tool to display the specific position of the counterweight ball. When it is necessary to adjust the center of gravity of the drone, the user only needs to adjust the position of the counterweight ball to adjust the specific position of the center of gravity. The weight of the counterweight ball can be adjusted by the user to meet the specific requirements of different drone models.

[0016] 4. This utility model is used in the process of manufacturing drones to test the impact of the center of gravity on flight stability and safety. It simplifies the cumbersome process of disassembling and assembling parts to change the center of gravity of the drone, reduces the difficulty of operation, and can quickly adjust the center of gravity by changing the position of the counterweight ball, thereby improving work efficiency. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 for Figure 1 Top view;

[0019] Figure 3 for Figure 1 The left view;

[0020] Figure 4 It is a structural diagram of the utility model;

[0021] Figure 5 This is a schematic diagram showing the connection between this utility model and a drone.

[0022] Description of Reference Numerals

[0023] 1-Connecting block; 2-Rotating shaft; 3-Digital dial fixing block; 4-First lead screw; 5-Crossbeam; 6-Counterweight ball; 7-Rib plate; 8-Second lead screw; 9-Angle dial; 10-Displacement dial; 11-Locking ring; 12-Reinforcing rib; 13-Locking screw. Detailed Implementation

[0024] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0025] An innovative aspect of a drone center of gravity adjustment device is that it includes a horizontal adjustment unit and a rotation adjustment unit that are connected in conjunction. The horizontal adjustment unit includes a crossbeam 5, ribs 7, and a second lead screw 8. The ribs 7 are fixedly installed at both ends of the crossbeam 5. The second lead screw 8 is installed between the lower ends of the two ribs 7. A counterweight ball 6 is connected to the second lead screw 8. A displacement scale 10 is fixedly installed at the front ends of the two ribs 7. The displacement scale 10 records the displacement of the counterweight ball 6 sliding along the second lead screw 8. The rotation adjustment unit includes a first lead screw 4, a scale fixing block 3, a rotating shaft 2, and a connecting block 1. The first lead screw 4 is installed at the center of the crossbeam 5. The upper end of the first lead screw 4 is fixedly connected to the scale fixing block 3. An angle scale 9 is provided on the scale fixing block 3. The scale fixing block 3 and the connecting block 1 are rotatably connected to the rotating shaft 2 through a bearing. The top end of the connecting block 1 is connected to the drone.

[0026] The crossbeam 5 is an I-beam, which increases the connection area between the crossbeam and the rib plate, improves the connection strength, provides load-bearing strength, and ensures the stable horizontal movement of the counterweight ball.

[0027] The crossbeam 5 has uniform reinforcing ribs 12 at both the front and rear ends at the center position to improve the connection strength between the crossbeam and the first lead screw, and to ensure the stability and firmness of the adjustment device.

[0028] A locking ring 11 is fixedly installed on the upper part of the dial fixing block 3. A locking screw 13 is radially positioned on the locking ring 11. The locking screw 13 rotates to lock the rotating shaft 2. When the center of gravity angle needs to be adjusted, the rotating shaft is rotated at the corresponding angle according to the rotating angle dial. After the rotation is in place, the locking screw is turned to lock the rotating shaft, and the rotation angle is fixed.

[0029] The first lead screw 4 is connected to the crossbeam 5 by a thread, which enables the first lead screw to move up and down a small distance.

[0030] The connecting block 1 is connected to the drone by screws or adhesive, which improves the connection strength between the connecting block and the drone, and makes disassembly convenient, ensuring the operational accuracy of the adjustment device.

[0031] This adjustment device can be used by manufacturers to test the impact of the center of gravity on flight stability and safety during drone production. It simplifies the previously cumbersome process of disassembling and reassembling parts to change the drone's center of gravity, reducing operational difficulty. The center of gravity can be quickly adjusted by changing the position of the counterweight ball, improving work efficiency. The device employs a precision mechanical structure and transmission system to ensure the accuracy of the center of gravity adjustment. Its purely mechanical nature reduces reliance on electronic components, lowering long-term maintenance costs.

[0032] This invention utilizes the characteristic that the center of mass of a spherical part is located at the center of the sphere. The spherical part is symmetrically divided into several pieces, while the center of mass of the assembled spherical part remains constant. By adjusting its distance from the drone's center of gravity line, the flight status and battery consumption of the drone under different center of gravity deviations can be tested. Because the center of gravity of the counterweight ball can always be accurately determined during the adjustment process, it is very convenient to quantitatively analyze the drone's flight data under center of gravity deviation conditions.

[0033] This device has three main features: First, it allows for the combination of counterweight balls while maintaining a constant center of mass coordinate, providing conditions for testing center of gravity deviation under different weights. Second, it allows for quantitative adjustment of the counterweight ball's test position, enabling the study of the impact under different eccentricity distances. Third, it can rotate around the drone's center of gravity line, allowing for the examination of the relationship between eccentricity position and rotor angle. By quantitatively changing the position of the counterweight balls, different center of gravity positions can be studied. The device is connected to the main structure of the drone and can move back and forth along a preset track and rotate at a certain angle. The device is equipped with precise measuring instruments to display the specific position of the counterweight balls. When it is necessary to adjust the drone's center of gravity, the user only needs to adjust the position of the counterweight balls to achieve the specific position of the center of gravity. The weight of the counterweight balls can be adjusted by the user to meet the specific requirements of different drone models.

[0034] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A center of gravity adjustment device for an unmanned aerial vehicle (UAV), characterized in that: The system includes a horizontal adjustment unit and a rotation adjustment unit that are connected in conjunction. The horizontal adjustment unit includes a crossbeam (5), ribs (7), and a second lead screw (8). The ribs (7) are fixedly installed at both ends of the crossbeam (5). The second lead screw (8) is installed between the lower ends of the two ribs (7). A counterweight ball (6) is connected to the second lead screw (8). A displacement scale (10) is fixedly installed at the front ends of the two ribs (7). The displacement scale (10) records the movement of the counterweight ball (6) along the second lead screw (8). The sliding displacement; the rotation adjustment unit includes a first lead screw (4), a scale fixing block (3), a rotating shaft (2) and a connecting block (1). The first lead screw (4) is installed at the center of the crossbeam (5). The upper end of the first lead screw (4) is fixedly connected to the scale fixing block (3). An angle scale (9) is provided on the scale fixing block (3). The scale fixing block (3) and the connecting block (1) are rotatably connected to the rotating shaft (2) through a bearing. The top end of the connecting block (1) is connected to the UAV.

2. The UAV center of gravity adjustment device according to claim 1, characterized in that: The crossbeam (5) is an I-beam.

3. The UAV center of gravity adjustment device according to claim 1, characterized in that: The crossbeam (5) has uniform reinforcing ribs (12) at both the front and rear ends at the center position.

4. The UAV center of gravity adjustment device according to claim 1, characterized in that: A locking ring (11) is fixedly installed on the upper part of the dial fixing block (3). A locking screw (13) is installed radially on the locking ring (11). The locking screw (13) rotates to lock the rotating shaft (2).

5. The UAV center of gravity adjustment device according to claim 1, characterized in that: The first lead screw (4) is connected to the crossbeam (5) by a thread.

6. The UAV center of gravity adjustment device according to claim 1, characterized in that: The connecting block (1) is connected to the UAV by screws or adhesive.

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