Motor test bench

Abstract

The utility model belongs to the technical field of inspection of control systems or components thereof, and relates to a motor test bench, which comprises a mounting table, and further comprises a permanent magnet synchronous motor, a torque sensor, a magnetic powder brake and a magnetic powder brake regulator which are mounted on the mounting table, the output end of the permanent magnet synchronous motor is detachably connected with the input end of the torque sensor through a first coupler, the output end of the torque sensor is detachably connected with the input end of the magnetic powder brake through a second coupler, and baffles are detachably installed on the outer side of the first coupler and the outer side of the second coupler. The motor test bench can rapidly test the torque, the rotating speed, the power and other performances of the permanent magnet synchronous motor, and the baffle plates are arranged on the outer sides of the first coupling and the second coupling, so that a protection effect can be achieved, and the couplings are prevented from loosening, rotating, separating and hurting people.

Description

Technical Field

[0001] This utility model relates to a motor test bench, belonging to the field of inspection technology for control systems or their components. Background Technology

[0002] Motor test benches are performance testing devices used in new energy vehicle motors, playing a crucial role in motor testing and evaluation. These test benches can accurately measure key performance indicators of motors under operating conditions, such as torque output, speed performance, and power consumption. Simultaneously, they can simulate long-term motor operating conditions to assess motor durability, ensuring that the motor meets the high standards required for new energy vehicles. Therefore, motor test benches are indispensable on new energy vehicle motor production lines and are widely used in various production and usage scenarios, providing a solid guarantee for the reliability and performance of new energy vehicles.

[0003] However, despite the relatively complete functionality of existing motor test benches, some shortcomings still exist in practical use: First, to facilitate operators' inspection of connections and ensure the accuracy and reliability of testing, the couplings of existing test benches are exposed. However, in actual operation, if the connection between the couplings becomes loose and is not detected in time, the loose coupling may detach during high-speed rotation when the test bench starts running. This not only affects the accuracy of the test, but more importantly, the detached coupling has extremely high kinetic energy. If it impacts nearby personnel or equipment, it could cause serious injury accidents, posing a serious threat to the lives of test personnel. In addition, exposed couplings are prone to accumulating dust and debris. These impurities may not only affect the normal operation of the coupling and reduce the accuracy of the test, but may also accelerate the wear of the coupling, shorten its service life, and thus increase the maintenance costs of the test bench.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present invention, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a new technical solution to improve or solve the technical problems existing in the prior art as described above.

[0006] The technical solution provided by this utility model is as follows: a motor test bench, including a mounting platform, and further including a permanent magnet synchronous motor, a torque sensor, a magnetic powder brake, and a magnetic powder brake adjuster mounted on the mounting platform. The output end of the permanent magnet synchronous motor is detachably connected to the input end of the torque sensor through a first coupling, and the output end of the torque sensor is detachably connected to the input end of the magnetic powder brake through a second coupling. Both the first coupling and the second coupling are detachably equipped with baffles on their outer sides.

[0007] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: When the magnetic powder brake stops, the permanent magnet synchronous motor rotates under no-load. The rotation speed at the output end of the permanent magnet synchronous motor is detected by the torque sensor, and the signal is transmitted to the processor for processing, and finally the maximum speed and power are displayed. When the magnetic powder brake is running, the permanent magnet synchronous motor rotates under load. The rotation torque at the output end of the permanent magnet synchronous motor is detected by the torque sensor, and the signal is transmitted to the processor for processing, and finally the load torque and load power are displayed. Using the motor test bench of this utility model, the torque, speed and power of the permanent magnet synchronous motor can be quickly tested. By setting baffles on the outside of the first coupling and the second coupling, a protective function can be played to prevent the coupling from loosening and rotating and detaching, causing injury.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, a motor mounting bracket is installed at one end of the mounting platform, and the permanent magnet synchronous motor is detachably installed on the side of the motor mounting bracket. The mounting platform is also provided with a sensor mounting base and an adjuster base. The torque sensor is installed on the mounting platform through the sensor mounting base, and the magnetic powder brake adjuster is installed on the mounting platform through the adjuster base.

[0010] The beneficial effect of adopting the above-mentioned further solutions is that the motor mounting bracket, sensor fixing seat and regulator base can provide precise installation position and stable support, ensuring the stability and accuracy of the permanent magnet synchronous motor, torque sensor and magnetic powder brake regulator during operation, thereby improving the testing accuracy of the entire test bench.

[0011] Furthermore, it also includes a plate base, and both baffles are detachably mounted on the mounting platform via their respective plate bases.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the baffle can be detachably installed on the mounting platform via the plate base, which facilitates the quick replacement and cleaning of the baffle, while improving the flexibility and convenience of installation.

[0013] Furthermore, it also includes a drive control board, the torque sensor is signal-connected to the drive control board, the drive control board is signal-connected to the permanent magnet synchronous motor, the magnetic powder brake and the magnetic powder brake adjuster respectively, and the magnetic powder brake and the magnetic powder brake adjuster are signal-connected.

[0014] The beneficial effect of adopting the above-mentioned further solution is that by integrating the drive control board, the signal connection between the torque sensor, permanent magnet synchronous motor, magnetic powder brake and magnetic powder brake regulator is realized, which simplifies the structure of the test system and improves the degree of automation and control accuracy of the test.

[0015] Furthermore, the output shafts of the permanent magnet synchronous motor, the torque sensor, and the magnetic powder brake are coaxially arranged.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the output shafts of the permanent magnet synchronous motor, torque sensor and magnetic powder brake are set coaxially, which ensures the continuity and accuracy of power transmission during the test and reduces the error caused by shaft misalignment.

[0017] Furthermore, the baffle is U-shaped.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the U-shaped baffle can cover and protect the coupling, prevent external factors from interfering with the testing process, and at the same time provide better protection and visual effect.

[0019] Furthermore, the baffle is made of a transparent material.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the use of a baffle made of transparent material allows testers to clearly observe the operating status of the test component and the test results, thereby improving the transparency and observability of the test.

[0021] Furthermore, an observation window is provided on the baffle.

[0022] The advantage of adopting the above-mentioned further solution is that by opening an observation window on the baffle, the tester can more intuitively monitor the working status of the test component and promptly identify and resolve problems.

[0023] Furthermore, the bottom of the mounting platform is equipped with adjustable support feet for adjusting the height and level of the entire test platform.

[0024] The advantage of adopting the above-mentioned further solution is that the adjustable support feet at the bottom of the mounting platform allow the height and level of the test platform to be adjusted as needed, ensuring the accuracy and stability of the test.

[0025] Furthermore, the motor mounting bracket is equipped with a vibration damping device.

[0026] The beneficial effect of adopting the above-mentioned further solution is that the vibration damping device installed on the motor mounting bracket effectively reduces the impact of motor vibration during operation on the test results, thereby improving the accuracy and reliability of the test. Attached Figure Description

[0027] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of the motor test bench of this utility model;

[0029] Figure 2 This is a three-dimensional structural schematic diagram of the motor test bench of this utility model from another perspective;

[0030] Figure 3 This is a schematic diagram of the structure of the motor test bench of this utility model without the baffle installed;

[0031] Figure 4 This is a cross-sectional structural diagram of the motor test bench of this utility model.

[0032] In the diagram: 1. Mounting platform; 2. Support leg; 3. Mounting frame; 4. Permanent magnet synchronous motor; 5. Sensor mounting base; 6. Torque sensor; 7. Magnetic powder brake; 8. Regulator base; 9. Magnetic powder brake regulator; 11. First coupling; 12. Second coupling; 13. Plate base; 14. Baffle. Detailed Implementation

[0033] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and do not imply any priority in order or any specific technical meaning. Furthermore, the concepts of "connection" and "linkage" mentioned in this application, unless otherwise specified, are considered to include both direct connection (linkage) and indirect connection (linkage).

[0034] When interpreting the description of this application, it should be clarified that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating directions or positional relationships, are based on the perspective and layout shown in the accompanying drawings. They are intended to facilitate explanation and simplify the description process, and are not absolute limitations on the actual location, construction method, or operating mode of the described device or element. Therefore, these terms should not be construed as restrictive interpretations of the content of this application.

[0035] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0036] like Figure 1 - Figure 4 As shown, a motor test bench includes a mounting platform 1, with support legs 2 fixedly mounted on the bottom of the mounting platform 1. A motor mounting bracket 3 is fixedly mounted on the right side of the top of the mounting platform 1. A permanent magnet synchronous motor 4 is detachably mounted on the side of the motor mounting bracket 3. A sensor mounting base 5 is fixedly mounted on the top of the mounting platform 1 and on the left side of the motor mounting bracket 3. A torque sensor 6 is fixedly mounted on the top of the sensor mounting base 5. The torque sensor 6 is a collection that also includes a speed sensor, a pressure sensor, etc., and has a display screen that can display torque, speed, and power in real time.

[0037] A magnetic powder brake 7 is fixedly installed on the top of the mounting platform 1 and to the left of the sensor mounting base 5. An adjuster base 8 is fixedly installed on the top of the mounting platform 1 and to the left of the magnetic powder brake 7. A magnetic powder brake adjuster 9 is fixedly installed on the top of the adjuster base 8. The magnetic powder brake adjuster 9 controls the load force of the magnetic powder brake 7 to facilitate the simulation of the load borne by the motor during operation.

[0038] The output shafts of the permanent magnet synchronous motor 4, torque sensor 6, and magnetic powder brake 7 are on the same horizontal line. The output end of the permanent magnet synchronous motor 4 is detachably connected to the input end of the torque sensor 6 via a first coupling 11, and the output end of the torque sensor 6 is detachably connected to the input end of the magnetic powder brake 7 via a second coupling 12. In this embodiment, the first coupling 11 and the second coupling 12 are lamellar couplings, which have high torque transmission capacity, good compensation performance, and are easy to install and maintain. However, the selection of couplings is not limited to lamellar couplings; other types of couplings can be considered depending on the specific application scenario and testing requirements.

[0039] The torque sensor 6 is connected to the drive control board, which is connected to the permanent magnet synchronous motor 4, the magnetic powder brake 7, and the magnetic powder brake adjuster 9. The magnetic powder brake 7 and the magnetic powder brake adjuster 9 are connected to each other.

[0040] A plate base 13 is fixedly installed on the top of the mounting platform 1, located between the motor mounting bracket 3 and the sensor mounting base 5, and between the sensor mounting base 5 and the magnetic powder brake 7. A baffle 14 is detachably installed on the outer side of the plate base 13. In this embodiment, the baffle 14 is made of transparent acrylic material and is U-shaped. The baffle 14 is positioned on the first coupling 11 and the second coupling 12, allowing observation of the rotating couplings and providing protection against the risk of injury from loosening and rotating of the couplings. In another embodiment, the baffle 14 has an observation window, eliminating the need to restrict the transparency of the baffle 14 material. Test personnel can monitor the operation of the test components through the observation window.

[0041] The working principle of this utility model's motor test bench is as follows:

[0042] When in use, when the magnetic powder brake 7 stops, the permanent magnet synchronous motor 4 rotates under no-load. The rotation speed at the output end of the permanent magnet synchronous motor 4 is detected by the torque sensor 6, and the signal is transmitted to the processor for processing. Finally, the maximum speed and power are displayed.

[0043] When the magnetic powder brake 7 is running, the permanent magnet synchronous motor 4 rotates under load. The rotational torque at the output end of the permanent magnet synchronous motor 4 is detected by the torque sensor 6, and the signal is transmitted to the processor for processing. Finally, the load torque and load power are displayed, thereby quickly testing the torque, speed and power of the permanent magnet synchronous motor 4.

[0044] By installing a U-shaped and transparent acrylic baffle 14 above the first coupling 11 and the second coupling 12, not only can the rotating coupling be observed, but it also serves as a protective measure to prevent the coupling from loosening and rotating, thus avoiding the risk of injury.

[0045] Using the motor test bench of this utility model, the torque, speed and power of the permanent magnet synchronous motor 4 can be tested quickly. By setting baffles 14 on the outside of the first coupling 11 and the second coupling 12, a protective function can be provided to prevent the coupling from loosening and rotating and causing injury.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor test bench, comprising a mounting platform (1), characterized in that, It also includes a permanent magnet synchronous motor (4), a torque sensor (6), a magnetic powder brake (7), and a magnetic powder brake adjuster (9) mounted on the mounting platform (1). The output end of the permanent magnet synchronous motor (4) is detachably connected to the input end of the torque sensor (6) through a first coupling (11), and the output end of the torque sensor (6) is detachably connected to the input end of the magnetic powder brake (7) through a second coupling (12). Both the first coupling (11) and the second coupling (12) are detachably equipped with baffles (14) on their outer sides.

2. The motor test bench according to claim 1, characterized in that, The mounting platform (1) is equipped with a motor mounting bracket (3) at one end. The permanent magnet synchronous motor (4) is detachably mounted on the side of the motor mounting bracket (3). The mounting platform (1) is also provided with a sensor mounting base (5) and an adjuster base (8). The torque sensor (6) is mounted on the mounting platform (1) through the sensor mounting base (5). The magnetic powder brake adjuster (9) is mounted on the mounting platform (1) through the adjuster base (8).

3. The motor test bench according to claim 1, characterized in that, It also includes a plate base (13), and both of the baffles (14) are detachably mounted on the mounting platform (1) via their respective plate bases (13).

4. The motor test bench according to claim 1, characterized in that, It also includes a drive control board, the torque sensor (6) is signal-connected to the drive control board, the drive control board is signal-connected to the permanent magnet synchronous motor (4), the magnetic powder brake (7) and the magnetic powder brake adjuster (9) respectively, and the magnetic powder brake (7) and the magnetic powder brake adjuster (9) are signal-connected.

5. The motor test bench according to claim 1, characterized in that, The output shafts of the permanent magnet synchronous motor (4), torque sensor (6) and magnetic powder brake (7) are arranged coaxially.

6. The motor test bench according to claim 1, characterized in that, The baffle (14) is U-shaped.

7. The motor test bench according to claim 6, characterized in that, The baffle (14) is made of transparent material.

8. The motor test bench according to claim 6, characterized in that, An observation window is provided on the baffle (14).

9. The motor test bench according to claim 6, characterized in that, The mounting platform (1) is equipped with adjustable support feet at the bottom for adjusting the height and level of the entire test platform.

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