Constant load loading device for linear output steering engine

Abstract

The present application relates to the technical field of rudder engine load detection, and discloses a kind of linear output rudder engine constant load loading device, comprising: mounting plate, for installing the rudder engine to be detected;Load plate, set on the surface of the mounting plate;Fixed component, set on the load plate.The present application can realize the adjustment of the installation angle of rudder engine, so that the load capacity of rudder engine under different installation angles can be tested, the comprehensiveness of detection is improved, the whole adjustment process is simple and easy to operate, and the position of rudder engine and pulley is adjusted synchronously, so that the relative position between rudder engine and pulley will not deviate, so that the axial load can be provided for rudder engine at all times, the level of mounting plate can be maintained when used in the state of uneven ground, so that the position of rudder engine will not be inclined, the accuracy of subsequent detection is guaranteed, and the output shaft of motor used for adjusting angle can be protected, so that the output shaft of motor will not be subjected to the torque generated by pulling, so that the motor can be protected.

Description

Technical Field

[0001] This invention belongs to the field of servo motor load detection technology, and specifically relates to a constant load loading device for a linear output servo motor. Background Technology

[0002] Linear servos are high-precision actuators that convert rotary motion into linear displacement. Their core applications include automation equipment, robotics, aerospace, and smart homes (such as robot joint drives, valve control, precision positioning platforms, and drone landing gear deployment and retraction). Their key advantages are high integration, high positioning accuracy, and rapid response; they directly output linear thrust / pull without requiring additional transmission mechanisms.

[0003] Existing linear output servos require load capacity testing before leaving the factory, necessitating the use of a load loading device. These devices typically consist of a weight, a rope, and a pulley. One end of the rope is connected to the load end of the servo, and after passing over the pulley, it is connected to the weight. The weight, combined with the pulley and rope, provides axial force to the load end of the servo. However, due to the varying installation angles of servos in reality, testing their load performance at multiple angles requires adjusting the servo angle, necessitating corresponding pulley adjustments. This adjustment process is inconvenient and prone to causing misalignment between the servo and the pulley after adjustment (see attached diagram). Figure 5 This affects the accuracy of the test.

[0004] Therefore, it is necessary to invent a constant load loading device for a linear output servo motor to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a constant load loading device for a linear output servo motor, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a constant load loading device for a linear output servo motor, comprising: Mounting plate, used to mount the servo motor to be tested; A carrier plate is disposed on the surface of the mounting plate; A fixing component, mounted on the carrier plate, is used to fix the servo motor; A pulley is provided on the surface of the mounting plate; An adjustment component, mounted on the mounting plate, is used to adjust the angles of the carrier plate and the pulleys; The scale lines are set on the surface of the mounting plate and are used to adjust the angle of the carrier plate and the pulley in conjunction with the adjustment component.

[0007] Furthermore, the adjustment component includes: A mounting bracket is fixedly installed on the back of the mounting plate; The motor is fixedly mounted on the mounting bracket; A rotating rod is rotatably mounted on the mounting plate, with one end of the rotating rod fixedly connected to the carrier plate and the other end fixedly connected to the output shaft of the motor; A connecting plate is attached to the outside of the rotating rod; The mounting shaft is rotatably mounted on one side of the connecting plate. The mounting plate has an arc-shaped opening through which the mounting shaft passes. The pulley is rotatably sleeved on the mounting shaft.

[0008] Furthermore, the fixing component includes: Clamping plates are symmetrically arranged on the outer side of the carrier plate; A groove is formed on the outer side of the carrier plate; A lead screw is rotatably mounted in the slide groove, with one end of the lead screw extending outside the slide groove; The clamping plate is threaded onto the outside of the lead screw.

[0009] Furthermore, the mounting plate is provided with a bracket on its exterior, a ball head sleeve is fixedly installed at the top center of the bracket, a ball head rod is provided inside the ball head sleeve, the bottom of the ball head rod is fixedly connected to the mounting plate, a counterweight is fixedly installed at the bottom of the mounting plate, and a positioning component for fixing the ball head rod is provided on the bracket.

[0010] Furthermore, the positioning component includes: The mounting bracket is fixedly installed on the top of the support. The first electric push rod is fixedly installed at the bottom of the mounting bracket; A positioning plate is attached to the bottom of the first electric push rod; The first rubber pad is located at the bottom of the positioning plate.

[0011] Furthermore, a second electric push rod is symmetrically fixedly installed on the back of the mounting plate, and a limit plate is fixedly installed on one end of the second electric push rod near the rotating rod. A second rubber pad is fixedly installed on the inner side of the limit plate.

[0012] Furthermore, the weight of the counterweight can adjust the mounting plate to a vertical position under the action of gravity.

[0013] Furthermore, the mounting plate is circular, and the carrier plate is located at the center of the mounting plate.

[0014] Furthermore, the angle adjustment range of the carrier plate is 0-90 degrees.

[0015] The technical effects and advantages of this invention are as follows: 1. This invention enables the adjustment of the servo motor installation angle, allowing for testing of the servo motor's load capacity under different installation angles, thus improving the comprehensiveness of the test. The entire adjustment process is simple and easy to operate, and the servo motor and pulley are adjusted synchronously, ensuring that the relative positions between the servo motor and pulley do not deviate, thereby always providing axial load to the servo motor. 2. This invention can keep the mounting plate level when used on uneven ground, thereby ensuring that the servo motor position will not tilt and ensuring the accuracy of subsequent testing; 3. This invention can protect the output shaft of the motor used for adjusting the angle, so that the output shaft of the motor will not be subjected to the torque generated by pulling, thus protecting the motor. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the linear output servo motor constant load loading device according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of a portion of the structure of an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure of the adjustment component according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the structure of the bracket according to an embodiment of the present invention is shown; Figure 5 A comparison diagram of the servo motor's adjusted state according to an embodiment of the present invention is shown; In the diagram: 1. Mounting plate; 2. Carrier plate; 3. Pulley; 4. Fixing frame; 5. Motor; 6. Rotating rod; 7. Connecting plate; 8. Mounting shaft; 9. Scale line; 10. Clamping plate; 11. Lead screw; 12. Bracket; 13. Ball head sleeve; 14. Ball head rod; 15. Counterweight; 16. Mounting frame; 17. First electric push rod; 18. Positioning plate; 19. Second electric push rod; 20. Limiting plate; 21. Second rubber pad. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] This invention provides a constant load loading device for a linear output servo motor, such as... Figures 1 to 4 As shown, it includes: mounting plate 1, carrier plate 2, fixing components, pulleys 3, adjustment components, and scale lines 9; Mounting plate 1 is used to mount the servo motor to be tested. Carrier plate 2 is set on the surface of mounting plate 1. Fixing component is set on carrier plate 2 for fixing the servo motor. Pulley 3 is set on the surface of mounting plate 1. Adjustment component is set on mounting plate 1 for adjusting the angle of carrier plate 2 and pulley 3. Scale line 9 is set on the surface of mounting plate 1 for adjusting the angle of carrier plate 2 and pulley 3 in conjunction with adjustment component.

[0019] In use, the servo motor is fixed to the carrier plate 2 using the fixing components. The output end of the servo motor is connected to a pull rope, and the other end of the pull rope is connected to a weight. The pull rope is passed around the pulley 3. The pulley 3 ensures that the pull rope and the weight can provide axial load to the servo motor. The servo motor is started, and its output end is activated, causing the pull rope to pull the weight up and down for load testing. The weight can provide a constant load. When the angle of the servo motor needs to be adjusted, the angle of the carrier plate 2 and the pulley 3 is adjusted using the adjustment components, allowing the servo motor to be adjusted in angle. The scale line 9 makes it easy to adjust the servo motor to the required installation angle. Through the above operations, the installation angle of the servo motor can be adjusted, allowing the load capacity of the servo motor at different installation angles to be tested, improving the comprehensiveness of the test. The entire adjustment process is simple and easy to operate, and the position of the servo motor and the pulley 3 are adjusted synchronously, so that the relative position between the servo motor and the pulley 3 will not deviate, ensuring that the servo motor is always provided with axial load.

[0020] like Figures 2 to 3 As shown, the adjustment assembly includes: a fixed frame 4, a motor 5, a rotating rod 6, a connecting plate 7, and a mounting shaft 8; The mounting bracket 4 is fixedly installed on the back of the mounting plate 1. The motor 5 is fixedly installed on the mounting bracket 4. The motor 5 is a motor with a self-locking output shaft in the prior art. The rotating rod 6 is rotatably installed on the mounting plate 1. One end of the rotating rod 6 is fixedly connected to the carrier plate 2, and the other end is fixedly connected to the output shaft of the motor 5. The connecting plate 7 is fixedly connected to the outside of the rotating rod 6. The mounting shaft 8 is rotatably installed on one side of the connecting plate 7. The mounting plate 1 has an arc-shaped opening. The mounting shaft 8 passes through the arc-shaped opening, and the pulley 3 is rotatably sleeved on the mounting shaft 8.

[0021] Start motor 5 to make its output shaft drive the rotating rod 6, connecting plate 7, mounting shaft 8, pulley 3, and carrier plate 2 to rotate synchronously, so that the servo on carrier plate 2 and pulley 3 rotate synchronously to adjust the angle.

[0022] like Figure 1 As shown, the fixing assembly includes: a clamping plate 10, a sliding groove, and a lead screw 11; The clamping plates 10 are symmetrically arranged on the outside of the carrier plate 2. The slide groove is opened on the outside of the carrier plate 2. The lead screw 11 is rotatably installed in the slide groove. One end of the lead screw 11 extends to the outside of the slide groove. The clamping plates 10 are threaded on the outside of the lead screw 11. The lead screw 11 is symmetrically provided with threads in opposite directions.

[0023] The servo is placed between a pair of clamping plates 10. Rotating the screw 11 forward causes the pair of clamping plates 10 to move closer to each other, thereby clamping and fixing the servo. By adjusting the distance between the pair of clamping plates 10, it can accommodate servos of different sizes. Reversing the screw 11 causes the pair of clamping plates 10 to move away from each other, thereby canceling the clamping and fixing of the servo.

[0024] like Figure 1 As shown, a bracket 12 is provided on the outside of the mounting plate 1. A ball head sleeve 13 is fixedly installed at the top center of the bracket 12. A ball head rod 14 is provided inside the ball head sleeve 13. The bottom of the ball head rod 14 is fixedly connected to the mounting plate 1. A counterweight block 15 is fixedly installed at the bottom of the mounting plate 1. A positioning component for fixing the ball head rod 14 is provided on the bracket 12.

[0025] If the area where the mounting plate 1 is located is uneven, it will cause the fixed servo motor above to tilt, and it will also cause the load direction provided by the servo motor to be deviated by the weight and the pull rope, affecting the accuracy of the detection. Therefore, under the action of gravity, the counterweight 15 adjusts the mounting plate 1 to keep it vertical, thus completing the straightening of the mounting plate 1. Then, the ball joint rod 14 is fixed by the positioning component, so that the adjusted mounting plate 1 can be fixed, thus completing the straightening of the mounting plate 1. At this time, the mounting plate 1 is in a vertical state, and the position of the servo motor installed on its surface will not tilt, ensuring the accuracy of subsequent testing.

[0026] like Figure 1 As shown, the positioning assembly includes: a mounting bracket 16, a first electric push rod 17, a positioning plate 18, and a first rubber pad; Mounting bracket 16 is fixedly mounted on top of bracket 12, first electric push rod 17 is fixedly mounted on bottom of mounting bracket 16, positioning plate 18 is fixedly connected to bottom of first electric push rod 17, and first rubber pad is set at bottom of positioning plate 18.

[0027] Activating the first electric push rod 17 causes it to descend along with the positioning plate 18 and the first rubber pad, making the first rubber pad come into contact with the ball joint rod 14. The friction force is used to fix the ball joint rod 14, thereby fixing the mounting plate 1. Activating the first electric push rod 17 causes it to rise along with the positioning plate 18 and the first rubber pad. Conversely, it can cancel the fixing of the mounting plate 1.

[0028] like Figure 2 As shown, a second electric push rod 19 is symmetrically fixedly installed on the back of the mounting plate 1. A limit plate 20 is fixedly installed at one end of the second electric push rod 19 near the rotating rod 6. A second rubber pad 21 is fixedly installed on the inner side of the limit plate 20.

[0029] Since the fixed positions of the adjusted carrier plate 2, servo motor, pulley 3 and rotating rod 6 rely on the self-locking component inside the motor 5 with output shaft self-locking function, the gravity of the weight will provide a downward pull on the pulley 3, carrier plate 2 and servo motor. This force will generate torque at the output shaft of the motor 5, which will damage the output shaft of the motor 5 in the long run. Therefore, by activating the second electric push rod 19, it moves the limiting plate 20 and the second rubber pad 21 towards the rotating rod 6. The pair of limiting plates 20, together with the second rubber pad 21, clamp and fix the rotating rod 6, so that the rotating rod 6 can be fixed, so that the output shaft of the motor 5 will not be subjected to the torque generated by the pull, thus protecting the output shaft of the motor 5.

[0030] like Figure 1 As shown, the weight of the counterweight 15 can adjust the mounting plate 1 to a vertical position under the action of gravity.

[0031] This allows the counterweight 15 to adjust the mounting plate 1 and the components and servo motor above it under the action of gravity, ultimately adjusting the mounting plate 1 to be vertical.

[0032] like Figure 1 As shown, the mounting plate 1 is circular, and the carrier plate 2 is located at the center of the mounting plate 1.

[0033] This allows the carrier plate 2 to rotate around the center of the mounting plate 1, and the angle can be adjusted in conjunction with the scale line 9.

[0034] like Figure 1 As shown, the angle adjustment range of carrier plate 2 is 0-90 degrees.

[0035] This enables testing of various servo motor installation angles, improving the accuracy of the results.

[0036] Working principle: In use, the servo is placed between a pair of clamping plates 10. Rotating the screw 11 forward causes the clamping plates 10 to move closer together, thus clamping and fixing the servo. A pull rope is connected to the output end of the servo, and a weight is connected to the other end of the rope. The pull rope passes over a pulley 3, which ensures that the rope and weight provide axial load to the servo. Starting the servo activates its output end, causing the pull rope to pull the weight up and down for load testing. The weight provides a constant load. When the angle of the servo needs to be adjusted, the motor 5 is started, causing its output shaft to rotate... The rod 6, connecting plate 7, mounting shaft 8, pulley 3, and carrier plate 2 rotate synchronously, causing the servo on carrier plate 2 and pulley 3 to rotate synchronously to adjust the angle. With the help of the scale line 9, the servo can be easily adjusted to the required mounting angle. Through the above operation, the mounting angle of the servo can be adjusted, which allows the load capacity of the servo under different mounting angles to be tested, improving the comprehensiveness of the test. The whole adjustment process is simple and easy to operate, and the synchronous adjustment of the position of the servo and pulley 3 ensures that there will be no deviation in the relative position between the servo and pulley 3, so that the axial load can always be provided to the servo. If the area where the mounting plate 1 is located is uneven, it will cause the fixed servo motor above to tilt, and it will also cause the load direction provided by the servo motor to be deviated by the weight and the pull rope, affecting the accuracy of the detection. The first electric push rod 17 is activated to raise the positioning plate 18 and the first rubber pad, thus releasing the fixation of the ball joint rod 14 and the mounting plate 1. Under the action of gravity, the counterweight block 15 adjusts the mounting plate 1 to keep it in a vertical state, completing the straightening of the mounting plate 1. Then, the first electric push rod 17 is activated to lower the positioning plate 18 and the first rubber pad, so that the first rubber pad comes into contact with the ball joint rod 14. The ball joint rod 14 is fixed by friction, thus fixing the mounting plate 1 and completing the straightening of the mounting plate 1. At this time, the mounting plate 1 is in a vertical state, and the position of the servo motor installed on its surface will not tilt, ensuring the accuracy of subsequent testing. Since the fixed positions of the adjusted carrier plate 2, servo motor, pulley 3 and rotating rod 6 rely on the self-locking component inside the motor 5 with output shaft self-locking function, the gravity of the weight will provide a downward pull on the pulley 3, carrier plate 2 and servo motor. This force will generate torque at the output shaft of the motor 5, which will damage the output shaft of the motor 5 in the long run. Therefore, by activating the second electric push rod 19, it moves the limiting plate 20 and the second rubber pad 21 towards the rotating rod 6. The pair of limiting plates 20, together with the second rubber pad 21, clamp and fix the rotating rod 6, so that the rotating rod 6 can be fixed, so that the output shaft of the motor 5 will not be subjected to the torque generated by the pull, thus protecting the output shaft of the motor 5.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A constant load loading device for a linear output servo motor, characterized in that, include: Mounting plate (1) is used to mount the servo motor to be tested; Carrier plate (2) is disposed on the surface of the mounting plate (1); A fixing component is provided on the carrier plate (2) for fixing the servo motor; A pulley (3) is disposed on the surface of the mounting plate (1); An adjustment component is provided on the mounting plate (1) for adjusting the angles of the carrier plate (2) and the pulley (3); The scale line (9) is set on the surface of the mounting plate (1) to cooperate with the adjustment component to adjust the angle of the carrier plate (2) and the pulley (3).

2. The linear output servo motor constant load loading device according to claim 1, characterized in that: The adjustment components include: The mounting bracket (4) is fixedly installed on the back of the mounting plate (1); The motor (5) is fixedly mounted on the fixed frame (4); Rotary rod (6) is rotatably mounted on the mounting plate (1). One end of the rotating rod (6) is fixedly connected to the carrier plate (2), and the other end is fixedly connected to the output shaft of the motor (5). Connecting plate (7) is attached to the outside of the rotating rod (6); The mounting shaft (8) is rotatably mounted on one side of the connecting plate (7). The mounting plate (1) has an arc-shaped opening, through which the mounting shaft (8) passes. The pulley (3) is rotatably mounted on the mounting shaft (8).

3. The linear output servo motor constant load loading device according to claim 2, characterized in that: The fixing component includes: Clamping plates (10) are symmetrically arranged on the outside of the carrier plate (2); A groove is formed on the outer side of the carrier plate (2); A lead screw (11) is rotatably installed in the slide groove, with one end of the lead screw (11) extending outside the slide groove; The clamp (10) is threaded onto the outside of the lead screw (11).

4. The linear output servo motor constant load loading device according to claim 3, characterized in that: The mounting plate (1) is provided with a bracket (12) on the outside. A ball head sleeve (13) is fixedly installed at the top center of the bracket (12). A ball head rod (14) is provided inside the ball head sleeve (13). The bottom of the ball head rod (14) is fixedly connected to the mounting plate (1). A counterweight block (15) is fixedly installed at the bottom of the mounting plate (1). A positioning component for fixing the ball head rod (14) is provided on the bracket (12).

5. The linear output servo motor constant load loading device according to claim 4, characterized in that: The positioning component includes: Mounting bracket (16) is fixedly mounted on the top of the bracket (12); The first electric push rod (17) is fixedly installed at the bottom of the mounting bracket (16); The positioning plate (18) is connected to the bottom of the first electric push rod (17); The first rubber pad is disposed at the bottom of the positioning plate (18).

6. The linear output servo motor constant load loading device according to claim 5, characterized in that: The second electric push rod (19) is symmetrically fixedly installed on the back of the mounting plate (1). A limit plate (20) is fixedly installed on one end of the second electric push rod (19) near the rotating rod (6). A second rubber pad (21) is fixedly installed on the inner side of the limit plate (20).

7. The linear output servo motor constant load loading device according to claim 6, characterized in that: The weight of the counterweight (15) is sufficient to adjust the mounting plate (1) to a vertical position under the action of gravity.

8. The linear output servo motor constant load loading device according to claim 7, characterized in that: The mounting plate (1) is circular, and the carrier plate (2) is located at the center of the mounting plate (1).

9. The linear output servo motor constant load loading device according to claim 8, characterized in that: The angle adjustment range of the carrier plate (2) is 0-90 degrees.

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