Rotation actuator load performance testing device

Abstract

The invention relates to the field of actuator detection devices, in particular to a rotating actuator load performance testing device which comprises a rotating actuator. The tooth part of the input gear is pre-provided with a vacancy in the circumferential direction, and an output shaft of the rotating actuator is in transmission connection with the input gear; the transmission gear is in meshing transmission with the input gear, and when the input gear rotates to a vacant position right opposite to the transmission gear, meshing transmission of the input gear and the transmission gear fails; the wire coil is rotationally arranged and is in transmission connection with the transmission gear, and the rope body is wound on the wire coil in the rotating process of the wire coil; one end of the rope body is connected to the wire coil; and the counterweight body is connected to one end, far away from the wire coil, of the rope body and tensions the rope body. The automatic resetting of the wire coil can be realized before the actuator switches and turns, so that the rotary actuator can be ensured to bear stable load in both forward and reverse rotation.

Description

Technical Field

[0001] The present invention relates to the field of actuator detection devices, and in particular to a rotation actuator load performance testing device. Background Art

[0002] With the rapid development of industrial products and intelligence, the performance and life of rotary actuators, as core components for realizing intelligent product control, are very important. The problem with the load verification form in the existing technology during the development of actuators is that during the process of switching the actuator forward and reverse, the rotating component that is suspended with counterweights and connected to the actuator transmission cannot automatically reset. As a result, after the forward rotation is completed, during the reverse process, the rotating component will reset with the weight of the suspended counterweight, resulting in unstable load. Summary of the Invention

[0003] To overcome the above-mentioned deficiencies of the prior art, the present invention provides a load performance testing device for a rotary actuator, which can realize automatic resetting of the rotating component and ensure the stability of the load during the forward and reverse rotation of the test actuator.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions: A rotary actuator load performance testing device, comprising: Rotate the actuator; An input gear, wherein the teeth of the input gear are preset with notches in the circumferential direction, and the output shaft of the rotary actuator is drivingly connected to the input gear; The transmission gear meshing with the input gear is driven. When the input gear rotates to the position where it is not in the right position and faces the transmission gear, the meshing transmission between the input gear and the transmission gear fails. The wire drum is rotatably connected to the transmission gear, and the rope is wound around the wire drum during its rotation; A rope body, one end of which is connected to the reel; The counterweight body is connected to one end of the rope body away from the wire drum and tensions the rope body.

[0005] Furthermore, in a rotary actuator load performance testing device disclosed herein, the cable drum is provided with a cable groove concentric with the cable drum's rotation center, within which the cable is wound during cable drum rotation. This is a preferred embodiment of the present invention, ensuring that the force arm exerted by the counterweight on the cable drum is stable during cable drum rotation.

[0006] Furthermore, a rotary actuator load performance testing device in the present application also includes a frame, and the counterweight body is slidably connected to the frame along the vertical direction.

[0007] Furthermore, a rotary actuator load performance testing device in the present application also includes a guide wheel rotatably mounted on a frame, a rope extending from a wire drum passes around the guide wheel and is connected to a counterweight, and the rope segment between the corresponding guide wheel and the counterweight extends vertically.

[0008] Furthermore, in the present application, a rotary actuator load performance testing device is provided with a connecting column on the rotating wire drum, the rope body is connected to the connecting column, the trajectory of the wire groove is an open C shape, and the connecting column is arranged on the outer extension trajectory of the arc corresponding to the wire groove.

[0009] Furthermore, in a rotary actuator load performance testing device in the present application, a pair of limit rods are provided on the frame, and the rope section between the guide wheel and the wire drum corresponding to the rope body is between the pair of limit rods; When the reel is in the reset position, the counterweight body drops to the lowest position, and there is a gap between the rope body and the limit rod; When the wire drum rotates to a preset angle relative to the reset position, the rope body fits on the limit rod on the side corresponding to the rotation direction of the wire drum; When the meshing transmission between the input gear and the transmission gear fails, the limit rod is used to suppress the reciprocating rotation of the wire drum relative to the reset position due to inertia during the process of the wire drum rotating to the reset position.

[0010] Furthermore, in the present application, a rotary actuator load performance testing device is provided, wherein a first rotating shaft and a second rotating shaft are rotatably mounted on the frame, the input gear is mounted on the first rotating shaft, and the first rotating shaft is coaxially connected to the rotary actuator; the wire drum and the transmission gear are mounted on the second rotating shaft.

[0011] It can be seen from the above technical solution that the present invention has the following beneficial effects: The present invention provides a load performance test device for a rotary actuator, and its method of use is as follows: the output shaft of the rotary actuator rotates and drives the input gear, transmission gear, and wire drum to rotate in sequence. During the rotation of the wire drum, the rope pulls the counterweight body upward, and the weight of the counterweight body provides a load for the rotary actuator to test the performance and life of the rotary actuator. When the input gear rotates to the missing position facing the transmission gear, the meshing transmission between the input gear and the transmission gear fails, and the counterweight body falls and drives the wire drum to quickly reset. After the wire drum is reset, the input gear switches the rotation direction, and this cycle is repeated to perform load tests in both forward and reverse directions. Therefore, the actuator can automatically reset the wire drum before switching the direction, so as to ensure that the rotary actuator is subjected to a stable load in both forward and reverse rotations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the three-dimensional structure of a rotary actuator load performance testing device in an embodiment of the present application; Figure 2A top view of a rotary actuator load performance testing device according to an embodiment of the present application; Figure 3 for Figure 2 Cross-sectional view in the AA direction; Figure 4 for Figure 2 Cross-sectional view along the BB direction.

[0013] In the figure: 1-input gear; 10-missing position; 2-transmission gear; 3-wire drum; 31-wire slot; 32-connecting column; 4-rotating actuator; 5-rope body; 6-counterweight body; 7-frame; 71-guide rod; 72-limit rod; 73-first rotating shaft; 74-second rotating shaft; 8-guide wheel. DETAILED DESCRIPTION

[0014] The existing technologies for load verification devices in the actuator development process and the problems they face include: 1. Magnetic powder brake test device: The torque of the magnetic powder brake will be severely attenuated at a high temperature of 120℃, and it cannot meet the output of constant torque load.

[0015] 2. Swing arm load test device: The swing arm load is because the actuator's lever arm is constantly changing within the operating angle range. When the actuator switches between clockwise and counterclockwise rotation, the torque applied to the actuator cannot meet the constant torque.

[0016] This embodiment provides a rotary actuator load performance testing device, comprising: Rotate actuator 4; An input gear 1, wherein the teeth of the input gear 1 are preset with a notch 10 in the circumferential direction, and the output shaft of the rotary actuator 4 is in transmission connection with the input gear 1; The transmission gear 2 meshes with the input gear 1 and when the input gear 1 rotates to the missing position 10 facing the transmission gear 2, the meshing transmission between the input gear 1 and the transmission gear 2 fails; The wire drum 3 is rotatably arranged, and the wire drum 3 is in transmission connection with the transmission gear 2. During the rotation of the wire drum 3, the rope 5 is wound around the wire drum 3; Rope 5, one end of which is connected to the wire drum 3; The counterweight 6 is connected to one end of the rope 5 away from the drum 3 and tensions the rope 5.

[0017] Based on the above structure, a method of using a rotary actuator load performance test device is as follows: the output shaft of the rotary actuator 4 rotates and drives the input gear 1, the transmission gear 2, and the wire drum 3 to rotate in sequence. During the rotation of the wire drum 3, the rope body 5 pulls the counterweight body 6 upward. The weight of the counterweight body 6 provides a load for the rotary actuator 4 to test the performance and life of the rotary actuator 4. When the input gear 1 rotates to the missing position 10 facing the transmission gear 2, the meshing transmission between the input gear 1 and the transmission gear 2 fails, and the counterweight body 6 falls and drives the wire drum 3 to quickly reset. After the wire drum 3 is reset, the input gear 1 switches the rotation direction, and this cycle is repeated to perform load tests in both forward and reverse directions. Therefore, the actuator can automatically reset the wire drum 3 before switching the direction, ensuring that the rotary actuator 4 is subjected to a stable load in both forward and reverse rotations.

[0018] Furthermore, in this embodiment, the wire drum 3 is provided with a wire groove 31 which is concentric with the rotation center of the wire drum 3 , and the rope body 5 is wound in the wire groove 31 during the rotation of the wire drum 3 .

[0019] This ensures that the force arm of the counterweight 6 acting on the wire drum 3 is stable during the rotation of the wire drum 3.

[0020] Furthermore, in this embodiment, a frame 7 is further included, and the counterweight body 6 is slidably connected to the frame 7 in the vertical direction. Specifically, a pair of guide rods 71 are provided on the frame 7, and the counterweight body 6 is slidably sleeved on the guide rods 71.

[0021] Furthermore, this embodiment also includes a guide wheel 8 rotatably mounted on the frame 7. The rope body 5 extending from the wire drum 3 passes around the guide wheel 8 and is connected to the counterweight body 6. The rope body 5 extends vertically corresponding to the rope segment between the guide wheel 8 and the counterweight body 6.

[0022] Furthermore, in this embodiment, a connecting post 32 is rotatably mounted on the cable drum 3, to which the rope 5 is connected. The trajectory of the cable trough 31 is open C-shaped, and the connecting post 32 is positioned along the arc-shaped extension of the cable trough 31. The rotatable connecting post 32 effectively prevents the rope from being repeatedly bent and worn due to the reciprocating rotation of the rope.

[0023] Furthermore, in this embodiment, a pair of limiting rods 72 are provided on the frame 7, and the rope section between the corresponding guide wheel 8 and the wire drum 3 of the rope body 5 is between the pair of limiting rods 72; When the cable drum 3 is in the reset position, the counterweight 6 drops to the lowest position, and there is a gap between the cable body 5 and the limiting rod 72; When the wire drum 3 rotates by a preset angle relative to the reset position, the rope body 5 is attached to the limiting rod 72 on the side corresponding to the rotation direction of the wire drum 3; When the meshing transmission between the input gear 1 and the transmission gear 2 fails, during the process of the bobbin 3 rotating to the reset position, the limit rod 72 is used to suppress the bobbin 3 from reciprocatingly rotating relative to the reset position due to inertia.

[0024] Furthermore, in this embodiment, a first rotating shaft 73 and a second rotating shaft 74 are rotatably mounted on the frame 7, the input gear 1 is mounted on the first rotating shaft 73, and the first rotating shaft 73 is coaxially connected to the rotating actuator 4; the wire drum 3 and the transmission gear 2 are mounted on the second rotating shaft 74.

[0025] In summary, compared with the existing magnetic powder brake type test device and the swing arm load type test device, the rotary actuator load performance test device of this embodiment can apply a constant torque load to the tested component in the forward and reverse rotation, and at the same time can meet the test scenarios in high and low temperature environments.

[0026] The technical principles of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A rotary actuator load performance test device, characterized by: include: Rotating the actuator (4); An input gear (1), wherein the tooth portion of the input gear (1) is preset with a notch (10) in the circumferential direction, and the output shaft of the rotary actuator (4) is in transmission connection with the input gear (1); The transmission gear (2) meshes with the input gear (1) for transmission, and when the input gear (1) rotates to the missing position (10) facing the transmission gear (2), the meshing transmission between the input gear (1) and the transmission gear (2) fails; A wire drum (3) is arranged to rotate, the wire drum (3) is in transmission connection with the transmission gear (2), and the rope body (5) is wound around the wire drum (3) during the rotation of the wire drum (3); A rope body (5), one end of which is connected to the wire drum (3); The counterweight body (6) is connected to one end of the rope body (5) away from the wire drum (3) and tensions the rope body (5).

2. A rotary actuator load performance testing device according to claim 1, characterized in that: The wire drum (3) is provided with a wire groove (31) which is concentric with the rotation center of the wire drum (3), and the rope body (5) is wound in the wire groove (31) during the rotation of the wire drum (3).

3. The rotary actuator load performance testing device according to claim 2, characterized in that: It also includes a frame (7), and the counterweight body (6) is slidably connected to the frame (7) in a vertical direction.

4. The rotary actuator load performance testing device according to claim 3, characterized in that: The invention also includes a guide wheel (8) rotatably mounted on a frame (7), wherein a rope (5) extending from a wire drum (3) passes over the guide wheel (8) and is connected to a counterweight (6), and a rope section between the guide wheel (8) and the counterweight (6) of the rope (5) extends vertically.

5. The rotary actuator load performance testing device according to claim 4, characterized in that: A connecting column (32) is rotatably provided on the wire drum (3), the rope body (5) is connected to the connecting column (32), the track of the wire groove (31) is open C-shaped, and the connecting column (32) is arranged on the extended track of the wire groove (31) corresponding to the arc.

6. The rotary actuator load performance testing device according to claim 5, characterized in that: A pair of limiting rods (72) are provided on the frame (7), and the rope section between the corresponding guide wheel (8) and the wire drum (3) of the rope body (5) is between the pair of limiting rods (72); When the wire drum (3) is in the reset position, the counterweight body (6) drops to the lowest position, and a gap exists between the rope body (5) and the limiting rod (72); When the wire drum (3) rotates by a preset angle relative to the reset position, the rope body (5) fits onto the limiting rod (72) on the side corresponding to the rotation direction of the wire drum (3); When the meshing transmission between the input gear (1) and the transmission gear (2) fails, the limiting rod (72) is used to suppress the reciprocating rotation of the reel (3) relative to the reset position due to inertia during the rotation of the reel (3) to the reset position.

7. The rotary actuator load performance testing device according to claim 1, characterized in that: A first rotating shaft (73) and a second rotating shaft (74) are rotatably mounted on the frame (7); the input gear (1) is mounted on the first rotating shaft (73); the first rotating shaft (73) is coaxially connected to the rotating actuator (4); and the wire drum (3) and the transmission gear (2) are mounted on the second rotating shaft (74).

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