A torque detection device for unmanned aerial vehicle rotating shaft and paddle

Abstract

This utility model discloses a torque detection device for drone shafts and propellers, comprising a base box, a lifting cylinder, and a swing motor. The lifting cylinder is located at the lower end of the base box, and its drive end is vertically connected to a lifting seat. The swing motor is located on the lifting seat, and a connecting shaft is provided in the middle of the lifting seat. The drive end of the swing motor drives the swing of the connecting shaft. A coupling and a torque sensor are respectively connected to the upper and lower ends of the connecting shaft. A column plate is connected to the upper end of the connecting shaft, and two columns are fixed to one end of the column plate. The upper ends of the columns extend out of the upper end of the base box, and a placement cavity is installed at the upper end of the base box. This torque detection device for drone shafts and propellers is used to detect the torque force of the propellers on the drone. The propellers are clamped on both sides by the raised columns, and the swing motor drives the propellers to swing back and forth, thereby detecting the force. The overall structure is compact and lightweight, and the operation is simple.

Description

Technical Field

[0001] This utility model relates to the technical field of detection, and in particular to a torque detection device for the shaft and propeller of a drone. Background Technology

[0002] During the rotation of a drone's propeller blades, the torque affects the moment of inertia, which in turn affects the drone's performance, flight stability, and safety. Therefore, when manufacturing drone propeller shafts, it is necessary to test the torque of the propeller blades on the shaft. Utility Model Content

[0003] One objective of this invention is to provide a torque detection device for the shaft and propellers of a drone, which automatically detects the magnitude of torque by oscillating the propellers on the shaft back and forth.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A torque detection device for a drone's rotor shaft and propeller includes a base box, a lifting cylinder, and a swing motor. The lifting cylinder is located at the lower end of the base box, and its drive end is vertically connected to a lifting seat. The swing motor is located on the lifting seat, and a connecting shaft is provided in the middle of the lifting seat. The drive end of the swing motor drives the swing of the connecting shaft. A coupling and a torque sensor are respectively connected to the upper and lower ends of the connecting shaft. A column plate is connected to the upper end of the connecting shaft, and two columns are fixed to one end of the column plate. The upper ends of the columns extend out of the upper end of the base box, and a placement cavity is installed at the upper end of the base box.

[0006] As a preferred technical solution, a guide column is provided inside the base box along the vertical direction, and a linear bearing is installed on the outside of the lifting seat, the linear bearing sliding on the guide column.

[0007] As a preferred technical solution, both the drive end of the swing motor and the lower end of the connecting shaft are equipped with synchronous pulleys, and a synchronous belt is used to drive the synchronous pulleys together.

[0008] As a preferred technical solution, a photoelectric sensor is fixed to the upper end of the lifting seat, and a sensing plate is fixed to the column plate. The photoelectric sensor is connected to the sensing plate for signal transmission.

[0009] As a preferred technical solution, the upper end of the base box is provided with an arc-shaped groove, and the upper end of the column extends out after passing through the arc-shaped groove.

[0010] As a preferred technical solution, the upper end of the base box is provided with a mounting groove, the mounting groove is located outside the arc-shaped groove, and a sensor is installed in the mounting groove.

[0011] As a preferred technical solution, the front side of the base box is equipped with a touch screen and control buttons.

[0012] The beneficial effects of this utility model are as follows: It provides a torque detection device for the shaft and propeller of a drone. This torque detection device is used to detect the torque force of the propeller on the drone. The propeller is clamped on both sides by a raised column, and the propeller is driven by a swing motor to swing left and right to detect the force. The overall structure is small and lightweight, and the operation is simple. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of a torque detection device for a drone shaft and propeller, as described in the embodiment.

[0015] Figure 2 This is a first internal structure diagram of a torque detection device for a drone shaft and propeller, as described in the embodiment.

[0016] Figure 3 This is a second internal structure diagram of a torque detection device for a drone shaft and propeller, as described in the embodiment.

[0017] Figure 4 This is a third internal structural diagram of a torque detection device for a drone shaft and propeller, as described in the embodiment.

[0018] Figures 1 to 4 middle:

[0019] 1. Base box; 2. Lifting cylinder; 3. Swing motor; 4. Lifting seat; 5. Coupling; 6. Column plate; 7. Column; 8. Guide column; 9. Linear bearing; 10. Synchronous pulley; 11. Synchronous belt; 12. Photoelectric sensor; 13. Sensor plate; 14. Arc groove; 15. Mounting groove; 16. Sensor; 17. Touch screen; 18. Control button; 19. Rotating shaft; 20. Blade; 21. Coupling; 22. Torque sensor. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 4As shown in this embodiment, a torque detection device for a drone shaft and propeller includes a base box 1, a lifting cylinder 2, and a swing motor 3. The lifting cylinder 2 is located at the lower end of the base box 1. The driving end of the lifting cylinder 2 is vertically connected to a lifting seat 4. The swing motor 3 is located on the lifting seat 4. A connecting shaft 5 is provided in the middle of the lifting seat 4. The driving end of the swing motor 3 drives the swing of the connecting shaft 5. The upper and lower ends of the connecting shaft 5 are respectively connected to a coupling 21 and a torque sensor 22. The upper end of the connecting shaft 5 is connected to a column plate 6. Two columns 7 are fixed at one end of the column plate 6. The upper end of the columns 7 extends out of the upper end of the base box 1. A placement cavity is installed at the upper end of the base box 1.

[0022] The rotating shaft 19 with blades 20 is placed into the placement cavity. The blades 20 on the rotating shaft 19 unfold to both sides. The lifting cylinder 2 controls the lifting seat 4 to move upward as a whole. The two columns 7 on the column plate 6 rise above the base box 1. The two columns 7 are respectively located on both sides of one side of the blade 20, clamping and limiting the blade 20. Then the swing motor 3 is started, driving the torque sensor 22, the connecting shaft 5 and the coupling 21, the column 7 and the column plate 6, thereby driving the blade 20 to rotate. When the blade 20 rotates, the torque generated by its own resistance is collected and detected by the torque sensor 22. The detection data is input into the PLC to judge OK / NG. After the blade 20 on one side is detected, the rotating shaft 19 of the UAV is picked up and rotated 180°. Then the blade 20 on the other side can be measured.

[0023] Inside the base box 1, a guide column 8 is arranged vertically, and a linear bearing 9 is installed on the outside of the lifting seat 4. The linear bearing 9 slides on the guide column 8, and the vertical movement of the lifting seat 4 is guided vertically by the guide column 8. The linear bearing 9 reduces friction during movement.

[0024] Both the drive end of the swing motor 3 and the lower end of the connecting shaft 5 are equipped with synchronous pulleys 10. A synchronous belt 11 is connected between the synchronous pulleys 10. The swing motor 3 causes the connecting shaft 5 to rotate in the vertical direction through the rotation of the synchronous pulleys 10 and the transmission of the synchronous belt 11.

[0025] A photoelectric sensor 12 is fixed to the upper end of the lifting platform 4, and a sensor plate 13 is fixed on the column plate 6. The photoelectric sensor 12 and the sensor plate 13 are connected by a signal. When the column plate 6 moves back and forth, the photoelectric sensor 12 senses the sensor plate 13 to control the extreme movement position.

[0026] The upper end of the base box 1 is provided with an arc-shaped groove 14. The upper end of the column 7 extends out after passing through the arc-shaped groove 14. Under the action of the arc-shaped groove 14, it is more convenient for the column 7 to swing left and right after penetrating the thickness.

[0027] The upper end of the base box 1 is provided with a mounting groove 15, which is located outside the arc groove 14. A sensor 16 is installed in the mounting groove 15. With the presence of the mounting groove 15, the sensor 16 can sense the presence of the blade 20 and prevent the coupling shaft 5 from spinning idly.

[0028] The front of the base box 1 is equipped with a touch screen 17 and control buttons 18, which can be used by the user to control the detection action.

[0029] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A torque detection device for unmanned aerial vehicle (UAV) shafts and propellers, characterized in that, The device includes a base box, a lifting cylinder, and a swing motor. The lifting cylinder is located at the lower end of the base box. The driving end of the lifting cylinder is vertically connected to a lifting seat. The swing motor is located on the lifting seat. A connecting shaft is provided in the middle of the lifting seat. The driving end of the swing motor drives the swing of the connecting shaft. A coupling and a torque sensor are respectively connected to the upper and lower ends of the connecting shaft. A column plate is connected to the upper end of the connecting shaft. Two columns are fixed at one end of the column plate. The upper ends of the columns extend out of the upper end of the base box. A placement cavity is installed at the upper end of the base box.

2. The torque detection device for UAV shafts and propellers according to claim 1, characterized in that, The base box has guide columns arranged vertically inside, and a linear bearing is installed on the outside of the lifting seat, with the linear bearing sliding on the guide columns.

3. The torque detection device for UAV shafts and propellers according to claim 1, characterized in that, Both the drive end of the swing motor and the lower end of the connecting shaft are equipped with synchronous pulleys, and a synchronous belt is connected between the synchronous pulleys.

4. The torque detection device for UAV shafts and propellers according to claim 1, characterized in that, A photoelectric sensor is fixed to the upper end of the lifting platform, and a sensing plate is fixed to the column plate. The photoelectric sensor is connected to the sensing plate for signal transmission.

5. The torque detection device for UAV shafts and propellers according to claim 1, characterized in that, The upper end of the base box is provided with an arc-shaped groove, and the upper end of the column extends out after passing through the arc-shaped groove.

6. The torque detection device for UAV shafts and propellers according to claim 5, characterized in that, The upper end of the base box is provided with a mounting groove, which is located outside the arc-shaped groove, and a sensor is installed in the mounting groove.

7. The torque detection device for UAV shafts and propellers according to claim 1, characterized in that, The front of the base box is equipped with a touch screen and control buttons.

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