Servo motor test platform

Abstract

The utility model relates to the technical field of servo motor test platforms, and discloses a servo motor test platform comprising a pedestal, the top of the pedestal is provided with a mounting seat, the mounting seat is rotatably provided with a test shaft, the test shaft is connected with an output shaft of a servo motor to be tested, and the test shaft is also movably provided with a plurality of load rings. The inner side of the load ring is provided with a guide strip, and the guide strip is in sliding connection with a mounting groove formed in the test shaft. According to the test platform, through the structural arrangement of the test shaft and the load ring, the disassembly and assembly process of the load ring is effectively simplified, and even if more load rings are added, the installation of the load ring can be easily realized. The problems that a traditional test platform is complex in load disassembly and assembly, so that the test preparation time is prolonged; and parts are easy to wear due to frequent assembly and disassembly of the load, so that the test precision is influenced.

Description

Technical Field

[0001] This utility model belongs to the technical field of servo motor testing platform, specifically, it relates to a servo motor testing platform. Background Technology

[0002] Servo motor torque detection is a crucial step in evaluating its driving capability, typically accomplished by setting up a test platform. The specific process involves aligning the motor, torque sensor, and load device via a coupling, and then sequentially performing no-load tests (measuring foundation losses), load tests (simulating actual operating conditions), and dynamic tests (analyzing transient response). During the load test, different operating conditions are simulated by adding or removing external loads to test the motor's torque output performance under varying loads. During the test, the torque sensor directly measures the torque on the motor's output shaft. Combined with parameters such as speed and current, a torque-speed curve is plotted, and indicators such as efficiency and fluctuation rate are calculated to comprehensively verify the motor's load adaptability and stability.

[0003] Currently, load testing of motors primarily involves simulating conditions by installing a ring-shaped load in a slotted section on a rotating column. However, repeatedly disassembling and reassembling the load during load adjustments not only prolongs test preparation time but also increases the manufacturing cost and structural complexity of the rotating column due to the need for multiple slots. Furthermore, frequent load disassembly and reassembly can easily cause component wear, affecting test accuracy. This is especially problematic in scenarios requiring rapid switching between various load combinations, where traditional mechanical load adjustment methods severely limit testing efficiency.

[0004] Based on this, the present invention provides a servo motor testing platform to solve the problems existing in the prior art. Utility Model Content

[0005] In view of this, the main objective of this utility model is to provide a servo motor testing platform to solve the problems of complex load disassembly and assembly in traditional testing platforms, which leads to extended test preparation time; and frequent load disassembly and assembly, which easily causes component wear and affects test accuracy.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A servo motor testing platform includes a base, a mounting seat on the top of the base, a test shaft rotatably mounted on the mounting seat, the test shaft being connected to the output shaft of the servo motor under test, and a plurality of load rings movably mounted on the test shaft, with guide bars on the inner side of the load rings, and the guide bars being slidably connected to mounting grooves formed on the test shaft.

[0008] In a preferred embodiment, the mounting groove is symmetrically arranged on the test shaft along the length direction of the test shaft.

[0009] In a preferred embodiment, the mounting groove is a trapezoidal groove structure with a small opening and a large inner cavity, and it fits snugly against the guide strip.

[0010] In a preferred embodiment, a plurality of positioning strips may be detachably provided in the mounting groove, the positioning strips being movably disposed in the mounting groove and matching the guide strips.

[0011] In a preferred embodiment, a mounting box is provided on the top outer side of the base, and the servo motor is installed inside the mounting box; a cover plate is provided on the top of the mounting box, and a ventilation opening is provided on the cover plate, and a dustproof net is provided inside the ventilation opening.

[0012] In a preferred embodiment, a transverse block is slidably disposed on the top of the base. The transverse block is slidably disposed in the movable groove on the top of the base, and a lifting groove is provided on the transverse block. A wedge-shaped limiting block is slidably disposed in the lifting groove, and the limiting block is in contact with the load ring.

[0013] In a preferred embodiment, a spring is also provided inside the lifting groove, and the top end of the spring is connected to the bottom outer wall of the limiting block.

[0014] In a preferred embodiment, a threaded rod is rotatably disposed within the movable groove, the transverse block is threadedly connected to the threaded rod, and the threaded rod extends to the outside of the movable groove, with a knob disposed at the end of the threaded rod located outside the movable groove.

[0015] In a preferred embodiment, the transverse block has an opening on one side that communicates with the lifting groove.

[0016] In a preferred embodiment, a connecting rod is slidably disposed within the movable opening, and the connecting rod is disposed on one outer wall of the limiting block.

[0017] Compared with the prior art, this utility model provides a servo motor testing platform, which has the following beneficial effects:

[0018] This testing platform simplifies the assembly and disassembly of load rings through its structural design of the test shaft and load rings. Even with a large number of load rings added, installation is easy. Furthermore, the load ring limiting structure allows for easy installation of several load rings onto the test shaft via mounting slots and guide bars. During installation, the load rings press against a limiting block, which moves into a lifting slot until the load ring is mounted on the test shaft. At this point, a spring returns the limiting block to its initial position. The number of load rings can be adjusted to simulate the actual operation of a servo motor under different working conditions. After all load rings are installed, a lateral movement block moves, causing the limiting block to move until it contacts the side of the load ring, thus limiting its movement and preventing it from falling off. This solves the problems of complex load assembly and disassembly in traditional testing platforms, which leads to prolonged test preparation time, and the wear and tear on components caused by frequent load assembly and disassembly, affecting test accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the servo motor testing platform of this utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the mounting box of the servo motor testing platform of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the test axis and the load ring of the servo motor test platform of this utility model;

[0023] Figure 4 This is a schematic diagram of the load loop structure of the servo motor testing platform of this utility model;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the transverse block of the servo motor testing platform of this utility model;

[0025] Figure 6 This is a schematic diagram of the positioning strip of this utility model.

[0026] [Explanation of Key Component Symbols]

[0027] 1. Base; 2. Mounting base; 3. Test shaft; 4. Mounting box; 5. Load ring; 6. Transverse block; 7. Cover plate; 8. Dustproof net; 9. Limit block; 10. Threaded rod; 11. Servo motor; 12. Movable slot; 13. Knob; 14. Mounting slot; 15. Guide bar; 16. Lifting slot; 17. Spring; 18. Movable opening; 19. Connecting rod; 20. Positioning bar. Detailed Implementation

[0028] The structure of the servo motor testing platform will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 9 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] As per the instruction manual Figures 1-6 As shown, this utility model provides a technical solution:

[0034] A servo motor testing platform includes a base 1, a load ring 5 mounted on the base 1, and a servo motor 11. The base 1 forms the foundation of the entire testing platform. A mounting seat 2 is fixedly mounted on the top of the base 1. The mounting seat 2 has mounting holes, and a test shaft 3 for performing motor load testing is rotatably mounted inside the mounting holes. The test shaft 3 is connected to the output shaft of the servo motor 11 under test via a coupling. The load ring 5 is movably mounted on the test shaft 3. The load ring 5 is detachably mounted on the test shaft 3, and its number can be flexibly increased or decreased according to testing requirements. By adjusting the combination of load rings 5, multi-level testing of the load capacity of the servo motor 11 can be achieved. Simultaneously, this structure, through the linkage between the test shaft 3 and the load ring 5, converts the rated output of the servo motor 11 into mechanical drive of the load ring, thereby quantitatively evaluating the torque output performance of the servo motor 11 under different load conditions.

[0035] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, symmetrically arranged guide bars 15 are also fixedly connected to the inner wall of the load ring 5. The guide bars 15 are slidably connected in the mounting groove 14 on the test shaft 3. The mounting groove 14 is symmetrically arranged on the test shaft 3 and is arranged along the length direction of the test shaft 3. During use, the cooperation of the guide bars 15 and the mounting groove 14 facilitates the installation of the load ring 5, effectively improving the installation efficiency of the load ring 5 and avoiding wear during the installation process. It also avoids eccentricity problems during motor testing.

[0036] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the mounting groove 14 is a trapezoidal groove structure with a small opening and a large inner cavity, and it fits tightly with the guide strip 15 so that the guide strip 15 is guided and limited by the pressure of the trapezoidal inclined surface of the mounting groove 14, thus ensuring the accuracy of the test results.

[0037] In the above description, the installation groove 14 adopts a trapezoidal cross-section design with a small opening and a large inner cavity. This trapezoidal slope applies radial constraint to the guide strip 15 through mechanical pressure, automatically correcting the positional deviation of the load ring 5 during axial sliding and ensuring its concentricity with the test shaft 3. This self-centering function effectively eliminates installation gaps and prevents additional vibration or uneven load distribution caused by eccentricity during testing.

[0038] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the test platform also includes several positioning bars 20, which are movably installed in the mounting groove 14 and closely fit the inner wall of the mounting groove 14. They are used to control the relative distance between the two load rings 5 ​​during use to meet the test requirements.

[0039] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a transverse block 6 is slidably mounted on the top of the base 1. The transverse block 6 is slidably connected in the movable groove 12 on the top of the base 1, and a lifting groove 16 is provided on the transverse block 6. A wedge-shaped limiting block 9 is slidably mounted in the lifting groove 16, and the limiting block 9 contacts one side of the outer wall of the load ring 5. This is used to limit the load ring 5 during use, preventing the load ring 5 from slipping out when the test shaft 3 rotates.

[0040] Specifically, such as Figure 5 As shown, a spring 17 is also installed on the inner bottom side of the lifting groove 16, and the top end of the spring 17 is connected to the bottom outer wall of the limiting block 9. In use, several load rings 5 ​​are installed on the test shaft 3 through the set mounting groove 14 and guide bar 15. During the installation of the load rings 5, the load rings 5 ​​press against the inclined surface of the limiting block 9, and the limiting block 9 moves into the lifting groove 16 under the pressure until the load rings 5 ​​are installed on the test shaft 3. At this time, the limiting block 9 returns to the initial position under the action of the spring 17. Then, by increasing or decreasing the number of load rings 5, the actual use of the servo motor 11 under different working conditions can be simulated.

[0041] In a preferred embodiment, such as Figure 1 and Figure 5 As shown, a threaded rod 10 is rotatably mounted on one inner wall of the movable groove 12. A threaded hole is provided on the transverse block 6, and the threaded rod 10 is screwed onto the inner wall of the threaded hole. The threaded rod 10 extends to the outside of the movable groove 12, and a knob 13 is fixedly connected to one end of the threaded rod 10 located outside the movable groove 12. In use, after installing several load rings 5, the threaded rod 10 is rotated by the knob 13. The threaded rod 10 drives the transverse block 6 to move, and the transverse block 6 drives the limiting block 9 to move until the limiting block 9 contacts the side of the load ring 5, thereby limiting the load ring 5 and preventing it from falling off. Then, the servo motor 11 is started to drive the test shaft 3 to rotate, thus completing the load capacity test of the servo motor 11.

[0042] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, a mounting box 4 is fixedly installed on the top outer wall of the base 1. A cover plate 7 is detachably installed on the top of the mounting box 4. A ventilation opening is provided on the cover plate 7, and a dustproof net 8 is detachably installed on the inner wall of the ventilation opening. In use, the servo motor 11 to be tested is installed inside the mounting box 4. The output shaft of the servo motor 11 is connected to the end of the test shaft 3 through a coupling. The mounting box 4 can effectively protect the servo motor 11 to be tested, and the dustproof net 8 can play a role in dust prevention and heat dissipation of the servo motor 11 during operation.

[0043] In a preferred embodiment, such as Figure 5 As shown, a movable opening 18 is provided on one side of the transverse block 6. The movable opening 18 communicates with the lifting groove 16. A connecting rod 19 is slidably provided on the inner wall of the movable opening 18. The connecting rod 19 is fixedly connected to the outer wall of one side of the limiting block 9. When it is necessary to remove the load ring 5 from the test shaft 3, the connecting rod 19 is pulled to move it. The connecting rod 19 drives the limiting block 9 to move into the lifting groove 16, so that the limiting block 9 does not contact the side of the load ring 5. Then the load ring 5 can be slid out from the test shaft 3.

[0044] The implementation principle of the servo motor testing platform described in this embodiment is as follows:

[0045] In use, several load rings 5 ​​are first installed on the test shaft 3 through the mounting slots 14 and guide bars 15. During the installation of the load rings 5, the load rings 5 ​​press against the limiting block 9, causing the limiting block 9 to move into the lifting slot 16 until the load rings 5 ​​are installed on the test shaft 3. At this point, the limiting block 9 returns to its initial position under the action of the spring 17. Then, by increasing or decreasing the number of load rings 5, the actual usage of the servo motor 11 under different working conditions is simulated. After several load rings 5 ​​are installed, the threaded rod 10 is rotated by the knob 13, and the threaded rod 10 drives the transverse block 6. The lateral block 6 moves, driving the limiting block 9 to move until the limiting block 9 contacts the side of the load ring 5, thus limiting the load ring 5 and preventing it from falling off. Then, the servo motor 11 is started to drive the test shaft 3 to rotate, which completes the test of the load capacity of the servo motor 11. When it is necessary to remove the load ring 5 from the test shaft 3, the connecting rod 19 is pulled to move. The connecting rod 19 drives the limiting block 9 to move into the lifting groove 16, so that the limiting block 9 does not contact the side of the load ring 5. Then the load ring 5 can be slid out of the test shaft 3.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A servo motor test platform, characterized by, The utility model provides a servo motor test device, including base (1), the top of base (1) is provided with mounting seat (2), the test shaft (3) is rotatably arranged on mounting seat (2), the test shaft (3) is connected with the output shaft of the servo motor (11) to be measured, and a plurality of load rings (5) are movably arranged on the test shaft (3), the inner side of load ring (5) is provided with guide bar (15), and guide bar (15) is slidably connected with mounting groove (14) on test shaft (3).

2. A servo motor test platform as claimed in claim 1, wherein, The mounting groove (14) is symmetrically arranged on the test shaft (3) along the length direction of the test shaft (3).

3. A servo motor test platform as claimed in claim 1, wherein, The mounting groove (14) is a trapezoidal groove structure with a small opening and a large inner cavity, and is fitted with the guide bar (15).

4. A servo motor test platform as claimed in claim 1, wherein, A plurality of positioning bars (20) are detachably arranged in the mounting groove (14), and the positioning bars (20) are movably arranged in the mounting groove (14) and matched with the guide bar (15).

5. A servo motor test platform as claimed in claim 1, wherein, The top outer side of the base (1) is further provided with a mounting box (4), and the servo motor (11) is arranged in the mounting box (4); the top of the mounting box (4) is provided with a cover plate (7), the cover plate (7) is provided with a ventilation opening, and a dust screen (8) is arranged in the ventilation opening.

6. A servo motor test platform as claimed in claim 1, wherein, The top of the base (1) is further provided with a transverse block (6), the transverse block (6) is slidably arranged in the movable groove (12) on the top of the base (1), and a lifting groove (16) is formed in the transverse block (6), a wedge-shaped limiting block (9) is slidably arranged in the lifting groove (16), and the limiting block (9) is in contact with the load ring (5).

7. A servo motor test platform as claimed in claim 6, wherein, The inner side of the lifting groove (16) is further provided with a spring (17), and the top end of the spring (17) is connected to the bottom outer wall of the limiting block (9).

8. A servo motor test platform as claimed in claim 6, wherein, The movable groove (12) is further provided with a threaded rod (10), the transverse block (6) is threadedly connected to the threaded rod (10), and the threaded rod (10) extends to the outside of the movable groove (12) and is provided with a knob (13) at one end of the threaded rod (10) located outside the movable groove (12).

9. A servo motor test platform as claimed in claim 6, wherein, One side of the transverse block (6) is provided with a movable opening (18), and the movable opening (18) is communicated with the lifting groove (16).

10. A servo motor test platform as claimed in claim 9, wherein The movable opening (18) is slidably provided with a connecting rod (19), and the connecting rod (19) is arranged on one side outer wall of the limiting block (9).

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