A drone trimming device

Abstract

The utility model discloses a kind of unmanned vehicle trimming device, belong to unmanned vehicle technical field, including first weighing frame, second weighing frame and third weighing frame, first weighing frame and the second weighing frame are respectively equipped with first weighing mechanism and second weighing mechanism for weighing unmanned vehicle, the first weighing mechanism is used to weigh the head of unmanned vehicle, the second weighing mechanism is used to weigh the tail of unmanned vehicle, the third weighing frame is used to weigh the left and right sides of unmanned vehicle, the utility model is weighed by setting first weighing frame, second weighing frame and third weighing frame, head, tail and left and right sides of unmanned vehicle respectively, using unmanned vehicle arm as rotation center, according to the pressure value measured conversion head tail needs to increase or decrease the size of force, to make unmanned vehicle reach balanced state, avoid the problem that one end is raised and cannot be detected.

Description

Technical Field

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

[0002] Currently, in the mass production of small and medium-sized civilian drones, a "balancing" process must be completed before test flights. This involves adjusting the drone's center of gravity to achieve static torque balance on the horizontal plane, ensuring safety during the maiden flight and stability in subsequent flights. Due to cost and site constraints, domestic production lines generally cannot build large wind tunnels, thus making it impossible to use dynamic airflow for precise balancing.

[0003] The most common practice on existing production lines is the "rope visual inspection method": the operator uses ropes to suspend the drone on a simple bracket and visually observes whether the drone is tilted forward or backward or left or right. Then, by attaching counterweights inside the cabin or adding or removing nuts, batteries, etc., the operator repeatedly tries and fails until the drone is visually inspected as being basically level.

[0004] However, this method has obvious drawbacks: it is difficult to ensure that the suspension point is on the same vertical line as the center of gravity of the UAV, and the level is judged by the naked eye, resulting in poor repeatability. The trim results obtained by different operators for the same model often differ greatly, which directly leads to pitch drift or roll jitter in subsequent flights. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, this utility model provides a drone trimming device.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A drone balancing device includes a first weighing frame, a second weighing frame, and a third weighing frame. The first weighing frame and the second weighing frame are respectively provided with a first weighing mechanism and a second weighing mechanism for weighing the drone. The first weighing mechanism is used to weigh the head of the drone, the second weighing mechanism is used to weigh the tail of the drone, and the third weighing frame is used to weigh the left and right sides of the drone.

[0008] Preferably, the first weighing mechanism includes a first spring floating mechanism and a first pressure sensor, with the first spring floating mechanism disposed above the first pressure sensor.

[0009] Preferably, the first spring floating mechanism includes a first base plate, a first guide rod, and a first placement plate. The first base plate is disposed above the first pressure sensor. The first guide rod passes through both sides of the first base plate. The upper end of the first guide rod is fixedly connected to the first placement plate. A first spring is sleeved on the outside of the first guide rod and is disposed between the first base plate and the first placement plate.

[0010] Preferably, the second weighing mechanism includes a second spring floating mechanism and a second pressure sensor, with the second spring floating mechanism positioned above the second pressure sensor.

[0011] Preferably, the second spring floating mechanism includes a second base plate, a second guide rod, and a second placement plate. The second base plate is disposed above the second pressure sensor. The second guide rod passes through both sides of the second base plate. The upper end of the second guide rod is fixedly connected to the second placement plate. A second spring is sleeved on the outside of the second guide rod and is disposed between the second base plate and the second placement plate.

[0012] Preferably, the third weighing frame includes a first weighing platform and a second weighing platform, which are respectively disposed at both ends of the third weighing frame. A first adjusting plate is disposed on the first weighing platform, and the first adjusting plate and the first weighing platform are adjustablely connected by bolts. A weighing sensor is disposed on the side of the first adjusting plate near the second weighing platform. A second adjusting plate is disposed on the second weighing platform, and the second adjusting plate and the second weighing platform are adjustablely connected by bolts. A weighing sensor is disposed on the side of the second adjusting plate near the first weighing platform.

[0013] Preferably, the first adjusting plate has an elongated hole on the side connected to the first weighing platform, and the first weighing platform has a plurality of positioning holes at the corresponding positions of the elongated hole, and the bolt passes through the elongated hole and is threadedly connected to the positioning holes; the second adjusting plate has an elongated hole on the side connected to the second weighing platform, and the second weighing platform has a plurality of positioning holes at the corresponding positions of the elongated hole, and the bolt passes through the elongated hole and is threadedly connected to the positioning holes.

[0014] Preferably, the first weighing frame is equipped with a display.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model provides a drone balancing device. The device sets up a first weighing frame, a second weighing frame, and a third weighing frame to weigh the head, tail, and left and right sides of the drone respectively. Using the drone's arms as the rotation center, the device calculates the amount of force that needs to be added or removed at the head and tail based on the measured pressure values ​​to bring the drone to a balanced state, thus avoiding the problem of one end tilting up and being unable to be detected. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a drone trimming device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the first weighing frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second weighing frame of this utility model;

[0020] Figure 4 This is a partially enlarged view of part A of this utility model;

[0021] 1. First weighing frame; 2. Second weighing frame; 3. Third weighing frame; 4. First weighing mechanism; 5. Second weighing mechanism; 6. First spring floating mechanism; 601. First base plate; 602. First guide rod; 603. First placement plate; 604. First spring; 7. First pressure sensor; 8. Second spring floating mechanism; 801. Second base plate; 802. Second guide rod; 803. Second placement plate; 804. Second spring; 9. Second pressure sensor; 10. First weighing platform; 11. Second weighing platform; 12. First adjusting plate; 13. Bolt; 14. Weighing sensor; 15. Second adjusting plate; 16. Elongated hole; 17. Positioning hole; 18. Display; 19. Unmanned aerial vehicle (UAV). Detailed Implementation

[0022] 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.

[0023] like Figure 1-4This utility model is a drone balancing device, including a first weighing frame 1, a second weighing frame 2 and a third weighing frame 3. The first weighing frame 1 and the second weighing frame 2 are respectively provided with a first weighing mechanism 4 and a second weighing mechanism 5 for weighing the drone 19. The first weighing mechanism 4 is used to weigh the head of the drone 19, the second weighing mechanism 5 is used to weigh the tail of the drone 19, and the third weighing frame 3 is used to weigh the left and right sides of the drone 19.

[0024] Specifically, the first weighing frame 1 and the second weighing frame 2 are symmetrically arranged and are used to weigh the head and tail of the UAV 19, respectively. The third weighing frame 3 is arranged between the first weighing frame 1 and the second weighing frame 2, and is usually located under the wing of the UAV 19 to facilitate weighing the left and right sides of the UAV 19.

[0025] Furthermore, the first weighing mechanism 4 includes a first spring floating mechanism 6 and a first pressure sensor 7, with the first spring floating mechanism 6 disposed above the first pressure sensor 7.

[0026] Specifically, the first spring floating mechanism 6 includes a first base plate 601, a first guide rod 602, and a first placement plate 603. The first base plate 601 is disposed above the first pressure sensor 7. The first guide rod 602 passes through both sides of the first base plate 601. The upper end of the first guide rod 602 is fixedly connected to the first placement plate 603. A first spring 604 is sleeved on the outside of the first guide rod 602. The first spring 604 is disposed between the first base plate 601 and the first placement plate 603.

[0027] In this embodiment, when weighing and balancing the drone 19, the head of the drone 19 is placed on the first placement plate 603. Under the pressure of the head of the drone 19, the first spring floating mechanism 6 moves downward, generating pressure on the first pressure sensor 7, thereby weighing the head of the drone 19. The first spring 604 is provided to cushion the head of the drone 19 when it is placed on the first placement plate 603.

[0028] Furthermore, the second weighing mechanism 5 includes a second spring floating mechanism 8 and a second pressure sensor 9, with the second spring floating mechanism 8 positioned above the second pressure sensor 9.

[0029] Specifically, the second spring floating mechanism 8 includes a second base plate 801, a second guide rod 802, and a second placement plate 803. The second base plate 801 is disposed above the second pressure sensor 9. The second guide rod 802 passes through both sides of the second base plate 801. The upper end of the second guide rod 802 is fixedly connected to the second placement plate 803. A second spring 804 is sleeved on the outside of the second guide rod 802. The second spring 804 is disposed between the second base plate 801 and the second placement plate 803.

[0030] In this embodiment, when weighing and balancing the drone 19, the tail of the drone 19 is placed on the second placement plate 803. Under the pressure of the tail of the drone 19, the second spring floating mechanism 8 moves downward, generating pressure on the second pressure sensor 9, thereby weighing the tail of the drone 19. The second spring 804 is set so that the tail of the drone 19 plays a buffering role when it is placed on the second placement plate 803.

[0031] Furthermore, the third weighing frame 3 includes a first weighing platform 10 and a second weighing platform 11. The first weighing platform 10 and the second weighing platform 11 are respectively disposed at both ends of the third weighing frame 3. A first adjusting plate 12 is disposed on the first weighing platform 10. The first adjusting plate 12 and the first weighing platform 10 are tunably connected by bolts 13. A weighing sensor 14 is disposed on the side of the first adjusting plate 12 near the second weighing platform 11. A second adjusting plate 15 is disposed on the second weighing platform 11. The second adjusting plate 15 and the second weighing platform 11 are tunably connected by bolts 13. A weighing sensor 14 is disposed on the side of the second adjusting plate 15 near the first weighing platform 10.

[0032] Specifically, the first adjusting plate 12 has an elongated hole 16 on the side connected to the first weighing platform 10, and the first weighing platform 10 has a plurality of positioning holes 17 at the corresponding positions of the elongated hole 16. The bolt 13 passes through the elongated hole 16 and is threadedly connected to the positioning holes 17. The second adjusting plate 15 has an elongated hole 16 on the side connected to the second weighing platform 11, and the second weighing platform 11 has a plurality of positioning holes 17 at the corresponding positions of the elongated hole 16. The bolt 13 passes through the elongated hole 16 and is threadedly connected to the positioning holes 17.

[0033] In this embodiment, a space is left between the first weighing platform 10 and the second weighing platform 11 to fit the bottom of the drone 19. Since the bottom of the drone 19 is mostly curved and streamlined, placing it directly on the third weighing platform would cause the entire drone to be unbalanced, resulting in inaccurate measurement results. When the drone 19 is placed on the third weighing frame 3, the two wings of the drone 19 are respectively placed on the weighing sensors 14 set on the first adjustment plate 12 and the second adjustment plate 15 to weigh the left and right sides of the drone 19.

[0034] Furthermore, two elongated holes 16 are provided on the body of the vertical drone 19 on the first adjusting plate 12 as guide rails. The elongated holes 16 are respectively located on both sides of the first adjusting plate 12. Several positioning holes 17 are provided on the first weighing platform 10 below the elongated holes 16. The bolts 13 are passed through the elongated holes 16 and then tightened into the positioning holes 17 to fix the first adjusting plate 12. Two elongated holes 16 are provided on the body of the vertical drone 19 on the second adjusting plate 15 as guide rails. The elongated holes 16 are respectively located on both sides of the second adjusting plate 15. Several positioning holes 17 are provided on the second weighing platform 11 below the elongated holes 16. The bolts 13 are passed through the elongated holes 16 and then tightened into the positioning holes 17 to fix the second adjusting plate 15. The positions of the first adjusting plate 12 and the second adjusting plate 15 can be adjusted according to the actual width of the drone 19, so that this device can be used for various models of drones 19.

[0035] Furthermore, the first weighing frame 1 is equipped with a display 18, which is electrically connected to the first weighing mechanism 4, the second weighing mechanism 5 and the weighing sensor 14, and is used to display weighing data. The staff can adjust the fixed points of the drone 19 by adding or subtracting weights based on the weighing data.

[0036] The working principle of the drone trimming device provided by this utility model is as follows:

[0037] In use, the third weighing frame 3 is moved to the area below the wing of the drone 19. The positions of the first adjustment plate 12 and the second adjustment plate 15 are adjusted according to the width of the drone 19. The positions of the first weighing frame 1 and the second weighing frame are adjusted appropriately according to the length of the drone 19. The wing axis of the drone 19 is used as the rotation support point, and the fixed points set at the head and tail of the drone 19 are used as the front and rear balance measurement points. The lever principle is used to calculate the magnitude of the force that needs to be added or reduced at the head and tail. The staff adjusts the fixed points of the drone 19 by adding or subtracting weights according to the converted weighing data displayed on the monitor 18.

[0038] This utility model provides a drone balancing device. The device sets up a first weighing frame 1, a second weighing frame 2 and a third weighing frame 3 to weigh the head, tail and left and right sides of the drone 19 respectively. Using the drone 19's arm as the rotation center, the device calculates the amount of force that needs to be added or removed at the head and tail based on the measured pressure value, so as to make the drone 19 reach a balanced state and avoid the problem of one end tilting up and being unable to be detected.

[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A drone trimming device, characterized in that: It includes a first weighing frame (1), a second weighing frame (2) and a third weighing frame (3). The first weighing frame (1) and the second weighing frame (2) are respectively provided with a first weighing mechanism (4) and a second weighing mechanism (5) for weighing the drone (19). The first weighing mechanism (4) is used to weigh the head of the drone (19), the second weighing mechanism (5) is used to weigh the tail of the drone (19), and the third weighing frame (3) is used to weigh the left and right sides of the drone (19).

2. The UAV trim device according to claim 1, characterized in that: The first weighing mechanism (4) includes a first spring floating mechanism (6) and a first pressure sensor (7), with the first spring floating mechanism (6) positioned above the first pressure sensor (7).

3. The UAV trim device according to claim 2, characterized in that: The first spring floating mechanism (6) includes a first base plate (601), a first guide rod (602) and a first placement plate (603). The first base plate (601) is disposed above the first pressure sensor (7). The first guide rod (602) passes through both sides of the first base plate (601). The upper end of the first guide rod (602) is fixedly connected to the first placement plate (603). A first spring (604) is sleeved on the outside of the first guide rod (602). The first spring (604) is disposed between the first base plate (601) and the first placement plate (603).

4. The UAV trim device according to claim 1, characterized in that: The second weighing mechanism (5) includes a second spring floating mechanism (8) and a second pressure sensor (9), with the second spring floating mechanism (8) positioned above the second pressure sensor (9).

5. The UAV trim device according to claim 4, characterized in that: The second spring floating mechanism (8) includes a second base plate (801), a second guide rod (802), and a second placement plate (803). The second base plate (801) is disposed above the second pressure sensor (9). The second guide rod (802) passes through both sides of the second base plate (801). The upper end of the second guide rod (802) is fixedly connected to the second placement plate (803). A second spring (804) is sleeved on the outside of the second guide rod (802). The second spring (804) is disposed between the second base plate (801) and the second placement plate (803).

6. The UAV trim device according to claim 1, characterized in that: The third weighing frame (3) includes a first weighing platform (10) and a second weighing platform (11). The first weighing platform (10) and the second weighing platform (11) are respectively located at both ends of the third weighing frame (3). A first adjusting plate (12) is provided on the first weighing platform (10). The first adjusting plate (12) and the first weighing platform (10) are tunably connected by bolts (13). A weighing sensor (14) is provided on the side of the first adjusting plate (12) near the second weighing platform (11). A second adjusting plate (15) is provided on the second weighing platform (11). The second adjusting plate (15) and the second weighing platform (11) are tunably connected by bolts (13). A weighing sensor (14) is provided on the side of the second adjusting plate (15) near the first weighing platform (10).

7. The UAV trim device according to claim 6, characterized in that: The first adjusting plate (12) has an elongated hole (16) on the side connected to the first weighing platform (10). The first weighing platform (10) has several positioning holes (17) at the corresponding positions of the elongated hole (16). The bolt (13) passes through the elongated hole (16) and is threadedly connected to the positioning holes (17). The second adjusting plate (15) has an elongated hole (16) on the side connected to the second weighing platform (11). The second weighing platform (11) has several positioning holes (17) at the corresponding positions of the elongated hole (16). The bolt (13) passes through the elongated hole (16) and is threadedly connected to the positioning holes (17).

8. The UAV trim device according to claim 1, characterized in that: The first weighing frame (1) is equipped with a display (18).

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