A rudder load simulation device and simulation method

Abstract

The application belongs to the technical field of simulation test, and particularly discloses a rudder motor load simulation device and a simulation method. The rudder motor load simulation device comprises a base, a mounting platform arranged on the top of the base and used for mounting a rudder motor, and a load component arranged on the top of the base and used for connecting the rudder motor for testing. A support component is arranged on the top of the mounting platform, and the support structure comprises two support seats, a moving plate, an extension rod and a limiting structure. The two support seats are arranged on the top of the mounting platform, and the top of each support seat is provided with a mounting groove for placing the rudder motor. The rudder motor is limited by the support seats and the limiting structure during installation, and the rudder motor under test can be cooled by the heat dissipation structure, thereby improving the stability of the rudder motor installation and preventing the continuous high load or poor heat dissipation during the load process from triggering the overheat protection inside the rudder motor, stopping the work automatically and affecting the load test effect.

Description

Technical Field

[0001] This invention belongs to the field of simulation testing technology, and specifically relates to a servo motor load simulation device and simulation method. Background Technology

[0002] A servo is an actuator in an autopilot that controls the rotation of the control surfaces (rudder surfaces) of an aircraft. A servo mainly consists of a housing, circuit board, drive motor, reducer, and position detection element. Its working principle is as follows: a receiver sends a signal to the servo, which is then driven by an IC on the circuit board to start the coreless motor. Power is transmitted to the control arm through a reduction gear, while a position detector sends back a signal to determine if the desired position has been reached. During flight, the servo encounters resistance from the surrounding environment (water for underwater navigation, air for flight), i.e., a load effect. The faster the flight speed, the more pronounced the load effect. Load is a necessary design input for servo design. The normal force and torque acting on the control blades under different flight conditions are typically provided as the load design input for the servo. A servo load simulation device is a device that can simulate the load effect experienced by a servo during flight under land conditions. It is generally used to verify servo designs and for equipment delivery testing of servos.

[0003] In existing technologies, load testing of servos is performed using load components. However, during use, if the servo is under continuous high load or has poor heat dissipation, it may trigger the servo's internal overheat protection and automatically stop working, thus affecting the effectiveness of the load test.

[0004] Therefore, it is necessary to invent a servo motor load simulation device and simulation method to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a servo motor load simulation device and method to solve the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a servo motor load simulation device and simulation method, comprising a base and a mounting platform on top for mounting servos; The load assembly, located on top of the base, is used to connect the servo motor for testing; Support components, positioned on top of the mounting platform, include the following support structure: The system includes two support bases, a movable plate, a telescopic rod, and a limiting structure. The two support bases are located on the top of the mounting platform. The top of the support bases has a mounting slot for placing the servo motor. The movable plate is installed in the mounting slot. The bottom of the movable plate is connected to the two support bases via the telescopic rod. The two support bases are equipped with limiting structures on the inner walls of both sides of the mounting slot to limit the servo motor.

[0007] Furthermore, the base is arranged in a cross shape, the mounting platform is located at the center of the base, the load component is located on the outside of the mounting platform, and the load component and the support component are arranged in a ring array around the center of the mounting platform. The two support seats are attached to each other on one side, and the top of the two support seats has a groove, and the limiting structure is located in the groove.

[0008] Furthermore, the load assembly includes a movable base, a first motor, a telescopic shaft, a support plate, a slider, a guide rail, a threaded rod, and a rotating wheel. The movable base is located on the top of the base, and the first motor is fixedly connected to one side of the movable base. The output end of the first motor passes through the movable base and is fixedly connected to the telescopic shaft. One end of the telescopic shaft is rotatably connected to the support plate. The slider is fixedly connected to the bottom of the movable base, and the guide rail is slidably connected to the bottom of the slider. The bottom of the guide rail is fixedly connected to the top of the base. A threaded rod is located in the middle of the guide rail, and mounting plates are rotatably connected to both ends of the threaded rod. A rotating wheel is fixedly connected to the end of the threaded rod away from the mounting platform.

[0009] Furthermore, a support plate is set on one side of the support base, the bottom of the support plate is fixedly connected to the top of the mounting platform, the guide rail and the slider are both located at the bottom ends of the movable base, the bottom of the mounting plate is fixedly connected to the top of the base, the threaded rod is threadedly connected to the bottom of the movable base, a scale is set on the side of the movable base away from the first motor, a pointer is set on the end of the telescopic shaft close to the first motor corresponding to the scale, and a torque sensor is set on the output shaft.

[0010] Furthermore, the limiting structure includes a baffle, a connecting frame, a connecting rod, an electric push rod, and a limiting plate. Two baffles are provided in the groove, and a connecting frame is provided at the bottom of the two baffles. The connecting frame is fixedly connected to the bottom of the movable plate through the connecting rod. A limiting plate is provided on the side of the baffle near the movable plate, and an electric push rod is fixedly connected to both the upper and lower ends of the limiting plate.

[0011] Furthermore, the inner walls at both ends of the bottom of the groove and inside the support are provided with movable slots, the bottom ends of the two baffles are located in the movable slots, the bottom end of the connecting rod extends through the mounting slot into the movable slot, the limiting plate is located inside the groove, and the inner walls at both the upper and lower ends of the groove are provided with placement slots, the electric push rod is fixedly connected to the placement slot, and the telescopic rod is sleeved with a spring on the outside.

[0012] Furthermore, a heat dissipation structure is also provided in the groove. The heat dissipation structure includes a cooling fan, a cooling block, and heat dissipation holes. The cooling fan is installed inside the groove through a first fixing block. The cooling fan is located between the baffle and the limiting plate. Heat dissipation holes are provided on the limiting plate. A cooling block is provided between two adjacent heat dissipation holes. The cooling block and the limiting plate are fixedly connected to the side of the limiting plate near the baffle. The limiting plate is located between the cooling fan and the baffle.

[0013] Furthermore, the two support bases are equipped with an adjustment structure, which includes a second fixing block and a gear and rack structure. The tops of the two support bases are slidably connected to the mounting platform. A fixing groove is opened on the side of the two support bases that are in contact with each other. The second fixing block is located in the fixing groove and is equipped with a gear and rack structure. The top of the second fixing block is opened with an installation port. The telescopic rod passes through the inner wall of the bottom of the installation groove and is fixedly connected to the installation port. A movable plate is slidably connected to the middle of the movable plate, and the movable plate is located at the bottom of the telescopic shaft.

[0014] A simulation method for a servo motor load simulation device, applied to the aforementioned servo motor load simulation device, includes the following steps: Step 1: Rotate the rotating wheel to make the threaded rod drive the moving seat and slider to move along the guide rail. This causes the moving seat to drive the first motor and the telescopic shaft to move and extend on the top of the base, thereby adapting to the length of the servo motor to be tested. By activating the gear and rack structure, the two support seats move along the top of the mounting platform. At the same time, the connecting action of the telescopic rod drives the moving plate to move along the movable plate, so that the two support seats move to the width that matches the servo motor to be tested. Step 2: Move the moving plate downwards to retract the telescopic rod and spring. Through the action of the connecting rod and connecting frame, the two baffles move into the moving slot. When the moving plate moves to the bottom of the inner wall of the mounting slot, the two baffles move into the moving slot, exposing the limiting plate. Then, install the output shaft of the servo motor with the telescopic shaft on one side of the support plate, and use the electric push rod to push the limiting plate to limit both sides of the servo motor. Step 3: Once the baffle no longer obstructs the groove and the servo is installed and fixed in the mounting slot, start the first motor to drive the telescopic shaft to rotate, which in turn drives the output shaft of the servo to rotate. At the same time, the torque sensor senses the load data and displays it on the dial and pointer. Step 4: During the load process, activate the heat dissipation structure to cool both sides of the servo. After the load is completed, remove the servo.

[0015] The technical effects and advantages of this invention are as follows: 1. This invention limits the installation of the servo motor through the support base and the limiting structure, while also cooling the servo motor during testing through the heat dissipation structure, thereby improving the stability of the servo motor installation. This helps to prevent the servo motor from automatically stopping its operation due to overheating protection caused by continuous high load or poor heat dissipation during the load test, which could affect the load test results.

[0016] 2. This invention allows the two support seats to move by adjusting the structure, thereby enabling the support seats to support and fix servos of different sizes. This facilitates load testing of servos of different sizes, improves adaptability, and avoids wobbling or displacement of servos due to unstable fixing during debugging or load testing. At the same time, the height of the servo can be adjusted according to testing or installation requirements to adapt to different connection and testing scenarios, thereby improving the overall flexibility and adaptability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a structural diagram of the base and load assembly according to an embodiment of the present invention; Figure 3 This is a structural diagram of the load component according to an embodiment of the present invention; Figure 4 This is a structural diagram of the support base, movable plate, and telescopic rod according to an embodiment of the present invention; Figure 5 This is a structural diagram of the heat dissipation structure, the limiting structure, and the adjustment structure according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the support base according to an embodiment of the present invention; Figure 7 This is a structural diagram of the support base and heat dissipation structure according to an embodiment of the present invention.

[0018] In the diagram: 1. Base; 2. Mounting platform; 3. Support base; 4. Movable plate; 5. Telescopic rod; 6. Movable seat; 7. First motor; 8. Telescopic shaft; 9. Support plate; 10. Slider; 11. Guide rail; 12. Threaded rod; 13. Rotating wheel; 14. Baffle; 15. Connecting frame; 16. Electric push rod; 17. Limiting plate; 18. Cooling fan; 19. Cooling block; 20. Heat dissipation hole; 21. Movable plate; 22. Second fixed block; 23. Third motor; 24. Gear; 25. First rack; 26. Second rack. Detailed Implementation

[0019] 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.

[0020] This invention provides a servo motor load simulation device and simulation method, such as Figures 1 to 3As shown, the system includes a base 1, a mounting platform 2, a load assembly, and a support assembly. The mounting platform 2 is located on top of the base 1 for mounting servos. The load assembly is located on top of the base 1 for connecting servos for testing. The support assembly is located on top of the mounting platform 2. The support structure includes two support seats 3, a movable plate 4, a telescopic rod 5, and a limiting structure. The two support seats 3 are located on top of the mounting platform 2, and the top of the support seats 3 has a mounting groove for placing the servo. The movable plate 4 is located in the mounting groove, and the bottom of the movable plate 4 is connected to the two support seats 3 via the telescopic rod 5. The two support seats 3 have limiting structures on the inner walls of both sides of the mounting groove for limiting the servo. The base 1 is arranged in a cross shape, the mounting platform 2 is located at the center of the base 1, and the load assembly is located on the outside of the mounting platform 2. The load assembly and the support assembly are arranged in a circular array around the center of the mounting platform 2. The two support seats 3 are attached to each other on one side, and the top of the two support seats 3 has a groove, and the limiting structure is located in the groove.

[0021] The cross-shaped base 1 enhances the overall structure's anti-overturning stability. The load components are arranged in a ring array around the outside of the mounting platform 2, ensuring the comparability of multi-channel test data. The support base 3, moving plate 4, and limiting structure facilitate the improvement of servo motor installation stability and test accuracy. After the servo motor is installed and fixed, the equipment enters the load test phase. The control system generates load commands according to the test requirements and sends them synchronously to the four load components. The load components located outside the mounting platform 2 are precisely connected to the servo motor's output shaft via couplings. During the connection process, the center positioning of the mounting platform 2 ensures the coaxiality of the load component's telescopic shaft and the servo motor's output shaft, reducing off-center load errors. The first motor 7 in the load component outputs the corresponding simulated load torque according to the command, which is transmitted to the servo motor's output shaft through the telescopic shaft 8 and couplings. The torque sensor collects the actual loading torque in real time, and the angle sensor simultaneously monitors the servo motor's rotation angle and speed, thus facilitating monitoring during the load test of the servo motor.

[0022] like Figures 1 to 3As shown, the load assembly includes a movable seat 6, a first motor 7, a telescopic shaft 8, a support plate 9, a slider 10, a guide rail 11, a threaded rod 12, and a rotating wheel 13. The movable seat 6 is mounted on the top of the base 1. The first motor 7 is fixedly connected to one side of the movable seat 6. The output end of the first motor 7 passes through the movable seat 6 and is fixedly connected to the telescopic shaft 8. One end of the telescopic shaft 8 is rotatably connected to the support plate 9. The slider 10 is fixedly connected to the bottom of the movable seat 6. The guide rail 11 is slidably connected to the bottom of the slider 10. The bottom of the guide rail 11 is fixedly connected to the top of the base 1. A threaded rod 12 is mounted in the middle of the guide rail 11. The threaded rod 12 has two... Each end is rotatably connected to a mounting plate. The threaded rod 12 is fixedly connected to a rotating wheel 13 at the end away from the mounting platform 2. The support plate 9 is set on one side of the support base 3. The bottom of the support plate 9 is fixedly connected to the top of the mounting platform 2. The guide rail 11 and the slider 10 are both located at the bottom ends of the movable seat 6. The bottom of the mounting plate is fixedly connected to the top of the base 1. The threaded rod 12 is threadedly connected to the bottom of the movable seat 6. An angle sensor is set inside the movable seat 6. A scale is set on the side of the movable seat 6 away from the first motor 7. A pointer is set on the end of the telescopic shaft 8 near the first motor 7 corresponding to the scale. A torque sensor is set on the output shaft.

[0023] The threaded rod 12 is mounted on the base 1 via a mounting plate. The mounting plate provides stable support for the threaded rod 12, ensuring transmission accuracy. Rotating the rotating wheel 13 drives the threaded rod 12 to rotate. Since the threaded rod 12 is threadedly connected to the bottom of the movable seat 6, the slider 10 restricts the rotation of the movable seat 6, causing the slider 10 to drive the movable seat 6 to move linearly along the guide rail 11. When the movable seat 6 moves, the telescopic shaft 8 extends and retracts, changing the distance between the support plate 9 and the movable seat 6, thereby adjusting the horizontal position of the load component to accommodate servos of different lengths. The first motor 7 drives the telescopic shaft 8 to rotate relative to the support plate 9. With the help of the dial and pointer on one side of the movable seat 6, the operator can intuitively read the rotation angle and accurately control the attitude angle of the load. The torque sensor on the telescopic shaft 8 collects the torque data during load operation in real time. The sensor feedback data can be used to monitor the load stress state and avoid malfunctions caused by overload or uneven stress.

[0024] like Figures 4 to 5As shown, the limiting structure includes baffles 14, connecting frames 15, connecting rods, electric push rods 16, and limiting plates 17. Two baffles 14 are provided in the groove, and connecting frames 15 are provided at the bottom of the two baffles 14. The connecting frames 15 are fixedly connected to the bottom of the movable plate 4 through the connecting rods. A limiting plate 17 is provided on the side of the baffles 14 near the movable plate 4. Electric push rods 16 are fixedly connected to both the upper and lower ends of the limiting plate 17. Movable slots are opened on the inner walls of both ends of the bottom of the groove and inside the support. The bottom ends of the two baffles 14 are located in the movable slots and are slidably connected to the movable slots. The bottom of the two baffles 14 are connected by the connecting frames 15. The connecting frames 15 are U-shaped. The top of the connecting rod is fixedly connected to the movable plate 4, and the bottom end of the connecting rod extends through the mounting slot into the movable slot. The limiting plate 17 is located inside the groove, and placement slots are opened on the inner walls of both the upper and lower ends of the groove. The electric push rods 16 are fixedly connected to the placement slots. The telescopic rod 5 is located in the middle of the two connecting rods, and a spring is sleeved on the outside of the telescopic rod 5.

[0025] The baffle 14 can shield the two sides of the groove to prevent dust from entering the groove and affecting the use of the limiting plate 17 and the heat dissipation structure. When the moving plate 4 moves, it drives the connecting rod to move into the moving groove. Through the action of the connecting frame 15, it drives the two baffles 14 to move into the moving groove, and at the same time, it causes the telescopic rod 5 and the spring to retract, so as to facilitate the exposure of the groove. The electric push rods 16 at the upper and lower ends of the limiting plate 17 are fixed in the mounting grooves on the upper and lower inner walls of the groove of the support base 3. After receiving the control system signal, the electric push rod 16 drives the limiting plate 17 to move horizontally into the mounting groove, so that after the servo is installed, the limiting plate 17 can fix the servo again, improving the installation stability of the servo.

[0026] like Figures 4 to 6 As shown, a heat dissipation structure is also provided in the groove. The heat dissipation structure includes a heat dissipation fan 18, a cooling block 19 and heat dissipation holes 20. The heat dissipation fan 18 is installed in the groove through a first fixing block. The heat dissipation fan 18 is located between the baffle 14 and the limiting plate 17. The limiting plate 17 has heat dissipation holes 20. A cooling block 19 is provided between two adjacent heat dissipation holes 20. The cooling block 19 and the limiting plate 17 are fixedly connected to the side of the limiting plate 17 near the baffle 14. The limiting plate 17 is located between the heat dissipation fan 18 and the baffle 14.

[0027] During load testing, the heat generated by the motor of the servo motor is conducted through the housing to the closely fitted limiting plate 17, causing the temperature of the limiting plate 17 to rise synchronously. The cooling block 19 is made of a high thermal conductivity material such as copper or aluminum. The cooling block 19 has channels inside, and coolant is placed in the channels. The cooling block 19 is closely fitted to the limiting plate 17 on the side near the cooling fan 18. By contacting the servo motor housing, it quickly conducts the heat on the servo motor housing to its own interior, using the cooling block 19 for heat dissipation to prevent overheating inside the servo motor. After the cooling fan 18 is fixed by the first fixing block, its airflow direction is directed towards the cooling block 19 and the limiting plate 17, activating the cooling function. Fan 18 draws in air from outside the groove and blows it onto the surface of the limiting plate 17, carrying away the heat from the limiting plate 17. Since the cooling block 19 and the limiting plate 17 maintain heat conduction, the heat on the limiting plate 17 is continuously transferred to the cooling block 19. Some airflow passes through the heat dissipation holes 20 on the limiting plate 17 and acts directly on the contact area on the side of the servo. On the one hand, it carries away the heat around the heat dissipation holes 20 on the limiting plate 17, and on the other hand, it blows directly onto the surface of the servo, accelerating the heat dissipation of the servo housing. This prevents the servo from being overheated during the load test due to continuous high load or poor heat dissipation, which could trigger the servo's internal overheat protection and cause it to automatically stop working, thus affecting the load test results.

[0028] like Figures 4 to 7 As shown, the two support bases 3 are equipped with an adjustment structure, which includes a second fixing block 22 and a gear and rack structure. The tops of the two support bases 3 are slidably connected to the mounting platform 2. A fixing groove is provided on the side of the two support bases 3 that is in contact with each other. The second fixing block 22 is located within the fixing groove. The gear and rack structure is provided within the second fixing block 22. The gear and rack structure includes a third motor 23, a rotating rod, a gear 24, a first rack 25, and a second rack 26. The third motor 23 is fixedly connected to the inner wall of the second fixing block 22. The output shaft of the third motor 23 is fixedly connected to... A rotating rod is rotatably connected at one end to the inner wall of the second fixed block 22. A gear 24 is fixedly connected to the rotating rod. A first rack 25 and a second rack 26 are respectively meshed on the upper and lower sides of the gear 24. Movable openings are provided on both sides of the second fixed block 22. The first rack 25 and the second rack 26 pass through the movable openings and are fixedly connected to the two support seats 3. An installation opening is provided on the top of the second fixed block 22. The telescopic rod 5 passes through the bottom inner wall of the installation groove and is fixedly connected to the installation opening. A movable plate 21 is slidably connected to the middle of the movable plate 4. The movable plate 4 is located at the bottom of the telescopic shaft 8.

[0029] When the size of the mounting slot needs to be adjusted, the third motor 23 is started to drive the rotating rod and gear 24 to rotate, so that the meshing first rack 25 and second rack 26 drive the support base 3 to move away from each other. At the same time, the moving plate 4 moves away from each other along the movable plate 21, so that the support base 3 moves along the mounting platform 2 to a suitable position. Then the third motor 23 is stopped, so that the moved support base 3 can support and fix servos of different sizes, thereby improving the comprehensiveness of servo installation, improving the stability of testing, and facilitating use.

[0030] A simulation method for a servo motor load simulation device, applied to the aforementioned servo motor load simulation device, includes the following steps: Step 1: Rotate the rotating wheel 13, so that the threaded rod 12 drives the moving seat 6 and the slider 10 to move along the guide rail 11, so that the moving seat 6 drives the first motor 7 and the telescopic shaft 8 to move and extend on the top of the base 1, thereby adapting to the length of the servo motor to be tested. By activating the gear rack structure, the two support seats 3 move along the top of the mounting platform 2, and at the same time, the connecting action of the telescopic rod 5 drives the moving plate 4 to move along the movable plate 21, so that the two support seats 3 move to the width that is compatible with the servo motor to be tested. Step 2: Move the moving plate 4 downwards, causing the telescopic rod 5 and the spring to retract. Through the action of the connecting rod and the connecting frame 15, the two baffles 14 are driven to move into the moving groove. When the moving plate 4 moves to the bottom of the inner wall of the mounting groove, the two baffles 14 move into the moving groove, exposing the limiting plate 17. Then, install the output shaft of the servo motor with the telescopic shaft 8 on one side of the support plate 9, and push the limiting plate 17 with the electric push rod 16 to limit the two sides of the servo motor. Step 3: When the baffle 14 no longer covers the groove and the servo is installed and fixed in the mounting slot, start the first motor 7 to drive the telescopic shaft 8 to rotate, so that the telescopic shaft 8 drives the output shaft of the servo to rotate. At the same time, the torque sensor senses the load data and displays the load data through the dial and pointer. Step 4: Simultaneously, during the load process, activate the heat dissipation structure to cool both sides of the servo. After the load is completed, remove the servo.

[0031] Working principle of this invention: Reference Figures 1 to 7As shown, during use, rotating the rotating wheel 13 drives the threaded rod 12 to rotate. Since the threaded rod 12 is threadedly connected to the bottom of the movable seat 6, the slider 10 restricts the rotation of the movable seat 6, causing the slider 10 to drive the movable seat 6 to move linearly along the guide rail 11. When the movable seat 6 moves, the telescopic shaft 8 extends and retracts, changing the distance between the support plate 9 and the movable seat 6, thereby adjusting the horizontal position of the load component to adapt to servos of different lengths. After the movable seat 6 is adjusted, the third motor 23 is started to drive the rotating rod and gear 24 to rotate, causing the first rack 25 and the second rack 26 meshing on the upper and lower sides of the gear 24 to drive the support seats 3 to move away from each other. At the same time, the movable plate 4 moves away from each other along the movable plate 21, so that the support seats 3 move to the appropriate position along the mounting platform 2, and then the two support seats 3 move to the width that matches the servo under test. Then the third motor 23 is stopped.

[0032] Moving the moving plate 4 downwards causes the telescopic rod 5 and spring to retract. Through the action of the connecting rod and connecting bracket 15, the two baffles 14 move into the moving groove. When the moving plate 4 moves to the bottom of the inner wall of the mounting groove, the two baffles 14 move into the moving groove, exposing the groove. Then, the output shaft of the servo is installed with the telescopic shaft 8 on one side of the support plate 9. The electric push rod 16 pushes the limiting plate 17 into the mounting groove, so that the limiting plate 17 fits against the outside of the servo, limiting both sides of the servo. When the baffle 14 no longer blocks the groove, the servo is installed and fixed in the mounting groove. The first motor 7 is started to drive the telescopic shaft 8 to rotate, so that the telescopic shaft 8 drives the output shaft of the servo to rotate. At the same time, the torque sensor senses and collects the torque data during load operation in real time. With the help of the dial and pointer on one side of the moving seat 6, the operator can intuitively read the rotation angle and accurately control the attitude angle of the load. The data fed back by the sensor can be used to monitor the load stress state.

[0033] When the limiting plate 17 is attached to both sides of the servo, the cooling block 19 is attached to both sides of the servo. When the servo is under load, the cooling block 19 contacts the servo housing, quickly transferring the heat from the servo housing to its interior. The cooling block 19 is used for heat dissipation to prevent overheating inside the servo. After the cooling fan 18 is fixed by the first fixing block, its air outlet direction is directed towards the cooling block 19 and the limiting plate 17. When the cooling fan 18 is started, it draws air from outside the groove and blows it onto the surface of the limiting plate 17, carrying away the heat from the limiting plate 17. Since the cooling block 19 and the limiting plate 17 maintain heat conduction, the heat from the limiting plate 17 is continuously transferred to the cooling block 19. Some airflow passes through the heat dissipation holes 20 on the limiting plate 17 and directly acts on the contact area on the side of the servo. On the one hand, it carries away the heat around the heat dissipation holes 20 on the limiting plate 17, and on the other hand, it directly blows on the surface of the servo, accelerating the heat dissipation of the servo housing, thereby improving the stability of the servo installation and also improving the stability and effect of the test.

[0034] 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 servo motor load simulation device, characterized in that, include: The base (1) has a mounting platform (2) on top for mounting the servo motor; The load assembly is set on top of the base (1) and is used to connect the servo motor for testing; A support assembly is set on the top of the mounting platform (2). The support assembly includes: two support seats (3), a movable plate (4), a telescopic rod (5), and a limiting structure. The two support seats (3) are set on the top of the mounting platform (2). The top of the support seats (3) is provided with a mounting groove for placing the servo motor. The movable plate (4) is provided in the mounting groove. The bottom of the movable plate (4) is connected to the two support seats (3) through the telescopic rod (5). The two support seats (3) are provided with limiting structures on both sides of the mounting groove for limiting the servo motor. The base (1) is arranged in a cross shape, the mounting platform (2) is located at the center of the base (1), the load component is located on the outside of the mounting platform (2), the load component and the support component are arranged in a ring array around the center of the mounting platform (2), the two support seats (3) are attached to each other on one side, and the top of the two support seats (3) is provided with a groove, and the limiting structure is located in the groove. The limiting structure includes a baffle (14), a connecting frame (15), a connecting rod, an electric push rod (16), and a limiting plate (17). Two baffles (14) are provided in the groove. A connecting frame (15) is provided at the bottom of the two baffles (14). The connecting frame (15) is fixedly connected to the bottom of the moving plate (4) through the connecting rod. A limiting plate (17) is provided on the side of the baffle (14) near the moving plate (4). An electric push rod (16) is fixedly connected to both the upper and lower ends of the limiting plate (17). The groove is also provided with a heat dissipation structure, which includes a heat dissipation fan (18), a cooling block (19) and heat dissipation holes (20). The heat dissipation fan (18) is installed inside the groove by a first fixing block. The heat dissipation fan (18) is located between the baffle (14) and the limiting plate (17). The limiting plate (17) is provided with heat dissipation holes (20). A cooling block (19) is provided between two adjacent heat dissipation holes (20). The cooling block (19) and the limiting plate (17) are fixedly connected on the side near the baffle (14). The limiting plate (17) is located between the heat dissipation fan (18) and the baffle (14).

2. The servo motor load simulation device according to claim 1, characterized in that: The load assembly includes a movable seat (6), a first motor (7), a telescopic shaft (8), a support plate (9), a slider (10), a guide rail (11), a threaded rod (12), and a rotating wheel (13). The movable seat (6) is provided on the top of the base (1). The first motor (7) is fixedly connected to one side of the movable seat (6). The output end of the first motor (7) passes through the movable seat (6) and is fixedly connected to the telescopic shaft (8). The support plate (9) is rotatably connected to one end of the telescopic shaft (8). The slider (10) is fixedly connected to the bottom of the movable seat (6). The guide rail (11) is slidably connected to the bottom of the slider (10). The bottom of the guide rail (11) is fixedly connected to the top of the base (1). The threaded rod (12) is provided in the middle of the guide rail (11). Mounting plates are rotatably connected to both ends of the threaded rod (12). The rotating wheel (13) is fixedly connected to the end of the threaded rod (12) away from the mounting platform (2).

3. The servo motor load simulation device according to claim 2, characterized in that: The support plate (9) is set on one side of the support base (3). The bottom of the support plate (9) is fixedly connected to the top of the mounting platform (2). The guide rail (11) and the slider (10) are both located at the bottom ends of the movable seat (6). The bottom of the mounting plate is fixedly connected to the top of the base (1). The threaded rod (12) is threadedly connected to the bottom of the movable seat (6). A scale is set on the side of the movable seat (6) away from the first motor (7). A pointer is set on the end of the telescopic shaft (8) close to the first motor (7) corresponding to the scale. A torque sensor is set on the telescopic shaft (8).

4. The servo load simulation device according to claim 3, characterized in that: The inner walls at both ends of the bottom of the groove and inside the support are provided with movable slots. The bottom ends of the two baffles (14) are located in the movable slots. The bottom end of the connecting rod extends through the mounting slot into the movable slot. The limiting plate (17) is located inside the groove. Placement slots are provided on the inner walls at both the top and bottom ends of the groove. The electric push rod (16) is fixedly connected to the placement slot. A spring is sleeved on the outside of the telescopic rod (5).

5. The servo load simulation device according to claim 4, characterized in that: An adjustment structure is provided in each of the two support seats (3). The adjustment structure includes a second fixing block (22) and a gear rack structure. The top of the two support seats (3) is slidably connected to the mounting platform (2). A fixing groove is provided on the side of the two support seats (3) that are in contact with each other. The second fixing block (22) is located in the fixing groove. A gear rack structure is provided in the second fixing block (22). An installation port is provided on the top of the second fixing block (22). The telescopic rod (5) passes through the inner wall of the bottom of the mounting groove and is fixedly connected to the installation port. A movable plate (21) is slidably connected in the middle of the movable plate (4). The movable plate (4) is located at the bottom of the telescopic shaft (8).

6. A simulation method for a servo motor load simulation device, characterized in that, The simulation method, using the servo motor load simulation device of claim 5, includes the following steps: Step 1: Rotate the rotating wheel (13) so that the threaded rod (12) drives the moving seat (6) and the slider (10) to move along the guide rail (11), so that the moving seat (6) drives the first motor (7) and the telescopic shaft (8) to move and extend on the top of the base (1) to adapt to the length of the servo motor to be tested. By activating the gear rack structure, the two support seats (3) move along the top of the mounting platform (2), and at the same time, the connecting action of the telescopic rod (5) drives the moving plate (4) to move along the movable plate (21), so that the two support seats (3) move to the width that is compatible with the servo motor to be tested; Step 2: Move the moving plate (4) downwards, so that the telescopic rod (5) and the spring retract. Through the action of the connecting rod and the connecting frame (15), the two baffles (14) are driven to move into the moving slot. When the moving plate (4) moves to the bottom of the inner wall of the mounting slot, the two baffles (14) move into the moving slot, exposing the limiting plate (17). Then, install the output shaft of the servo motor with the telescopic shaft (8) on one side of the support plate (9), and push the limiting plate (17) with the electric push rod (16) to limit the two sides of the servo motor. Step 3: When the baffle (14) no longer covers the groove and the servo is installed and fixed in the mounting slot, start the first motor (7) to drive the telescopic shaft (8) to rotate, so that the telescopic shaft (8) drives the output shaft of the servo to rotate. At the same time, the torque sensor senses the load data through the dial and pointer. Step 4: During the load process, activate the heat dissipation structure to cool both sides of the servo. After the load is completed, remove the servo.

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