Motor load testing device

Abstract

The utility model relates to the technical field of motor testing, in particular to a motor load testing device, which comprises a base and a testing assembly, the testing assembly comprises a hysteresis brake, a torque sensor, a rotary fixing element and a testing platform deck which are sequentially arranged on the base, one end of the hysteresis brake is connected with the torque sensor, and the other end of the hysteresis brake is connected with the rotary fixing element. One end of the torque sensor is connected with the rotary fixing element, the rotary fixing element is provided with a fixing jig, the fixing jig is used for being connected with the output end of a motor, and the test platform deck is used for installing the fixed end of the motor; according to the utility model, the space utilization rate is optimized, the occupied area of a test environment is reduced, the daily maintenance and calibration work of operators is facilitated, and the smoothness and convenience of the whole test process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor test technical field especially relates to a motor load testing device. BACKGROUND

[0002] A brushless motor is a type of motor, also known as a brushless DC motor or electronic speed control motor. Compared with traditional brush DC motors, brushless motors do not need to use brushes and collector rings for commutation, so they have higher efficiency, longer life and lower maintenance requirements. The working principle of the brushless motor is to use an electronic controller to achieve timely switching of the current, thereby driving the motor rotor to rotate. It is usually composed of a stator and a rotor. The stator contains several coils that generate a rotating magnetic field through current switching. The rotor is installed with permanent magnets or magnets, which rotate under the action of the rotating magnetic field.

[0003] During the production process of the motor, its load needs to be tested. Load testing is a key link for evaluating the performance and reliability of the motor. It simulates actual working conditions by applying a predetermined load on the motor shaft to detect the running status of the motor. This test aims to ensure that the motor can work efficiently and stably within the designed range, while verifying its ability to withstand load changes. The existing motor load testing equipment has a relatively complex structure and occupies a large space, which is not conducive to operation. Therefore, new improvements need to be made to the existing motor load testing. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model discloses an integrated structure design, which arranges the hysteresis brake, torque sensor, rotating fixed element and test platform in order on the base, forming a compact and efficient test system. Not only optimizes the space utilization, reduces the floor area of the test environment, but also facilitates the daily maintenance and calibration work of the operator, improves the smoothness and convenience of the overall test process of the motor load testing device.

[0005] The technical scheme adopted by the utility model is: a motor load testing device, comprising a base and a test assembly, the test assembly comprising a hysteresis brake, a torque sensor, a rotating fixed element and a test platform arranged in order on the base, one end of the hysteresis brake being connected with the torque sensor, one end of the torque sensor being connected with the rotating fixed element, the rotating fixed element being provided with a fixing jig, the fixing jig being used for connecting the output end of the motor, the test platform being used for installing the fixed end of the motor.

[0006] Further improvement of the above scheme is that a plurality of test installation grooves are arranged on the base, and each test installation groove is provided with a test assembly; one side of the test installation groove is provided with a positioning end plate, and the test platform is arranged on the positioning end plate.

[0007] Further improvement of the above scheme is that the base is provided with sliding rails on both sides, the sliding rails are provided with sliding blocks, the sliding blocks are provided with protective covers, the protective covers are located above the test assembly, and the protective covers are slidably arranged on the sliding rails through the sliding blocks.

[0008] Further improvement of the above scheme is that the base is provided with through grooves on both sides of the torque sensor, the lower surface of the base is provided with support columns, the support columns are used for supporting the base, and the lower surface of the base is suspended, and the through grooves penetrate through the thickness direction of the base.

[0009] Further improvement of the above scheme is that one end of the hysteresis brake is provided with a first coupling shaft, the hysteresis brake is connected with the torque sensor through the first coupling shaft, one end of the torque sensor is provided with a second coupling shaft, and the torque sensor is connected with the rotary fixing element through the second coupling shaft.

[0010] Further improvement of the above scheme is that one end of the hysteresis brake is provided with a first connecting shaft, both ends of the torque sensor are respectively provided with a first torque shaft and a second torque shaft, the first coupling shaft is used for connecting the first connecting shaft and the first torque shaft, and the rotary fixing element is provided with a second connecting shaft.

[0011] Further improvement of the above scheme is that the rotary fixing disc is provided on the rotary fixing element, and the fixing jig is opposite to the test table.

[0012] Further improvement of the above scheme is that the rotary fixing disc is provided with a rotary support seat on one side, and the rotary fixing disc is rotatably arranged on the rotary support seat through a bearing.

[0013] Further improvement of the above scheme is that the fixing jig is provided with a mounting positioning groove, the fixing jig is provided with a mounting positioning hole at the outer periphery of the mounting positioning groove, and the mounting positioning groove and the mounting positioning hole are used for positioning and mounting the output end of the motor.

[0014] Further improvement of the above scheme is that the test table comprises a mounting base plate and a motor connecting seat, the motor connecting seat is provided with a base mounting table, the mounting base plate is used for mounting the motor connecting seat on the base, and the base mounting table is used for mounting the fixed end of the motor.

[0015] The utility model has the advantages of:

[0016] Compared with the existing motor load test, the utility model discloses a compact and efficient test system through the integrated structure design, orderly arrangement hysteresis brake, torque sensor, rotating fixed element and test platform etc. on the base, not only optimize the space utilization, reduce the test environment's area of land, still facilitate the daily maintenance and calibration work of operating personnel, improve the smoothness and convenience of overall test procedure. Hysteresis brake can stably provide adjustable load resistance, and hysteresis brake can accurately simulate various load conditions encountered by motor in actual operation according to test demand. Make the test process more close to real working condition, effectively improve the accuracy and reliability of test result. Meanwhile, the response speed of hysteresis brake is fast, and the control precision is high, can realize the quick response to the load change, thereby satisfying the high standard requirement of motor dynamic performance evaluation. Torque sensor as the key component of connecting hysteresis brake and rotating fixed element, its high-precision measurement ability ensures the accurate capture of motor output torque data. Torque sensor can not only monitor the torque output condition of motor under different loads in real time, but also can transmit data to control system for analysis and processing, provides detailed data support for motor performance evaluation. The design of rotating fixed element and its built-in fixed jig fully considers the universality and flexibility of motor test. The fixed jig can be adapted according to the output end specifications of different motors, ensures the stable installation and accurate centering of motor in the test process. Test platform is used for supporting motor fixed end, and its stable structure design ensures the stability and safety of motor in the test process. Test platform also facilitates the quick installation and dismounting of motor, further shortens the test cycle and improves the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-dimensional schematic view of motor load test device of the utility model,

[0018] Figure 2 It is the three-dimensional schematic view of motor load test device of the utility model, Figure 1 It is the three-dimensional schematic view of motor load test device of the utility model,

[0019] Figure 3 It is the three-dimensional schematic view of motor load test device of the utility model, Figure 1 It is the three-dimensional schematic view of motor load test device of the utility model,

[0020] Figure 4 It is the three-dimensional schematic view of motor load test device of the utility model, Figure 1 It is the three-dimensional schematic view of motor load test device of the utility model,

[0021] Explanation of reference signs: base 1, test installation groove 11, positioning end plate 12, sliding rail 13, sliding block 14, protective cover 15, through groove 16, support column 17, test assembly 2, hysteresis brake 3, first coupling 31, first connecting shaft 32, torque sensor 4, second coupling 41, first torque shaft 42, second torque shaft 43, rotary fixing element 5, second connecting shaft 51, rotary fixing disc 52, rotary support seat 521, test platform 6, installation base plate 61, motor connecting seat 62, base installation table 63, fixing jig 7, installation positioning groove 71, installation positioning hole 72. DETAILED DESCRIPTION

[0022] For the purpose of facilitating the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. In the drawings, preferred embodiments of the present application are shown. However, the present application can be realized in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be apparent, however, to one of ordinary skill in the art that the present application can be practiced without these specific details.

[0023] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety. Figures 1-4As shown, an embodiment of the utility model relates to a motor load testing device, including base 1 and test assembly 2, test assembly 2 includes the hysteresis brake 3, torque sensor 4, rotation fixed element 5 and test platform 6 that are sequentially arranged on base 1, one end of hysteresis brake 3 is connected with torque sensor 4, one end of torque sensor 4 is connected with rotation fixed element 5, rotation fixed element 5 is provided with fixed jig 7, fixed jig 7 is used to connect the output end of motor, test platform 6 is used to install the fixed end of motor. This embodiment is arranged orderly by integrated structure design, hysteresis brake 3, torque sensor 4, rotation fixed element 5 and test platform 6 etc. on base 1, forms a compact and efficient test system. Not only optimize the space utilization, reduce the land area of test environment, still facilitate the routine maintenance and calibration work of operator, improve the smoothness and convenience of overall test procedure. Hysteresis brake 3 can stably provide adjustable load resistance, hysteresis brake 3 can accurately simulate various load conditions encountered by motor in actual operation according to test demand. Make the test process more close to real working condition, effectively improve the accuracy and reliability of test result. Meanwhile, the response speed of hysteresis brake 3 is fast, control precision is high, can realize the quick response to load change, to meet the high standard requirement of motor dynamic performance evaluation. Torque sensor 4 as the key component of connecting hysteresis brake 3 and rotation fixed element 5, its high-precision measurement ability ensures the accurate capture of motor output torque data. Torque sensor 4 can not only monitor the torque output condition of motor under different loads in real time, but also can transmit data to control system for analysis and processing, provides detailed data support for motor performance evaluation. Rotation fixed element 5 and the built-in fixed jig 7 design, fully consider the universality and flexibility of motor test. Fixed jig 7 can be adapted according to the output end specifications of different motors, ensure the stable installation and accurate centering of motor in the test process. Test platform 6 is used to support motor fixed end, and its stable structure design ensures the stability and safety of motor in the test process. Test platform 6 also facilitates the quick installation and disassembly of motor, further shortens the test cycle, improves the test efficiency.

[0025] A plurality of test installation slots 11 are arranged on the base 1, and each test installation slot 11 is provided with a test assembly 2; one side of the test installation slot 11 is provided with a positioning end plate 12, and the test platform 6 is arranged on the positioning end plate 12. In this embodiment, each test installation slot 11 is precisely installed with a test assembly 2 to cope with simultaneous testing of multiple motors or testing of multiple different types of motors. Through the positioning end plate 12 on one side of the test installation slot 11, stable support and precise positioning of the test platform 6 are achieved, effectively avoiding shaking and deviation during testing, and improving the stability and reliability of the test.

[0026] The base 1 is provided with sliding rails 13 on both sides, the sliding rails 13 are provided with sliding blocks 14, the sliding blocks 14 are provided with protective covers 15, the protective covers 15 are located above the test assemblies 2, and the protective covers 15 are slidably arranged on the sliding rails 13 through the sliding blocks 14. In this embodiment, the combination of the sliding rails 13 and the sliding blocks 14 provides a stable and flexible movement path for the protective covers 15, so that the protective covers 15 can be easily adjusted by sliding above the test assemblies 2. Not only does it enhance the operation convenience of the test device, but it also ensures that the protective cover 15 can quickly reach the position when needed, forming an effective protective barrier for the test assembly 2. At the same time, the sliding protective cover 15 design also facilitates quick opening and closing during testing, thereby facilitating the test personnel to observe the real-time state of the test assembly 2, improving the accuracy and efficiency of the test. In addition, this structure also has good durability and stability, and can withstand the vibration and impact that may occur during testing, ensuring the reliability of the test results.

[0027] The base 1 is provided with a through slot 16 on both sides of the torque sensor 4, and the lower surface of the base 1 is provided with a support column 17 for supporting the base 1 and suspending the lower surface of the base 1, and the through slot 16 penetrates along the thickness direction of the base 1. In this embodiment, the through slot 16 penetrates along the thickness direction of the base 1, which not only optimizes the heat dissipation performance of the structure, effectively reducing the heat accumulation caused by long-term load testing, but also improves the stability and durability of the entire test device. Secondly, the arrangement of the support column 17 suspends the lower surface of the base 1, which not only reduces the direct contact between the base 1 and the test platform, reduces friction and wear, but also facilitates maintenance and adjustment of the test device. The design of the through slot 16 also facilitates the wiring of each component.

[0028] One end of the hysteresis brake 3 is provided with a first coupling 31, and the hysteresis brake 3 is connected with the torque sensor 4 through the first coupling 31. One end of the torque sensor 4 is provided with a second coupling 41, and the torque sensor 4 is connected with the rotation fixing element 5 through the second coupling 41. Specifically, one end of the hysteresis brake 3 is provided with a first connecting shaft 32, both ends of the torque sensor 4 are respectively provided with a first torque shaft 42 and a second torque shaft 43, and the first coupling 31 is used to connect the first connecting shaft 32 with the first torque shaft 42. The rotation fixing element 5 is provided with a second connecting shaft 51, and the second coupling 41 is used to connect the second torque shaft 43 with the second connecting shaft 51. In the embodiment, the hysteresis brake 3 is closely connected with the torque sensor 4 through the first coupling 31, which ensures that the power transmission between the two is efficient and stable. The hysteresis brake 3 can provide controllable resistance according to test requirements, simulate load changes in actual working conditions, and thus provide an accurate load test environment for the motor. Secondly, as a key element in the test process, the torque sensor 4 is connected with the hysteresis brake 3 and the rotation fixing element 5 through the first torque shaft 42 and the second torque shaft 43 respectively. Not only does it improve the accuracy of torque measurement, but also enables the sensor to capture the torque changes of the motor under load in real time, providing a reliable basis for subsequent data analysis and fault diagnosis. Furthermore, the rotation fixing element 5 is connected with the second torque shaft 43 of the torque sensor 4 through the second coupling 41, which ensures the stability and reliability of the rotating parts during the test process. The design of the rotation fixing element 5 usually takes into account various working conditions in actual tests, such as speed and load size, thereby ensuring the accuracy and practicality of the test results.

[0029] The rotation fixing element 5 is provided with a rotation fixing disc 52, and the fixing jig 7 is arranged on the rotation fixing disc 52, and the fixing jig 7 is opposite to the test platform 6. Specifically, one side of the rotation fixing disc 52 is provided with a rotation support seat 521, and the rotation fixing disc 52 is rotationally arranged on the rotation support seat 521 through a bearing. In the embodiment, the fixing jig 7 is arranged on the rotation fixing disc 52, and forms an opposite layout with the test platform 6, which greatly improves the flexibility and accuracy of the test. Specifically, the rotation fixing disc 52 is stably and reliably rotated through a bearing by means of the rotation support seat 521 arranged on one side thereof, which ensures the smoothness and stability of the rotation action during the test process. This design not only simplifies the test process, but also effectively reduces the test errors that may be caused by unstable rotation. It is also helpful to realize multi-angle and all-around load testing, which meets the performance testing requirements of the motor under different working conditions. The close combination of the rotation fixing disc 52 and the fixing jig 7 ensures the stable fixation of the test object during the rotation process, thereby further improving the accuracy and reliability of the test.

[0030] The fixing jig 7 is provided with a mounting positioning groove 71, and the outer periphery of the mounting positioning groove 71 is provided with a mounting positioning hole 72, and the mounting positioning groove 71 and the mounting positioning hole 72 are used for positioning and mounting the output end of the motor. In the embodiment, the mounting positioning groove 71 provides an accurate and stable positioning reference for the output end of the motor, ensuring the positional accuracy and repeat positioning accuracy of the motor during installation, thereby improving the consistency and reliability of the test. The mounting positioning hole 72 located at the outer periphery of the mounting positioning groove 71 further enhances the connection stability and firmness of the fixing jig 7 and the output end of the motor. These positioning holes not only facilitate the use of fasteners to firmly mount the motor on the fixing jig 7, but also effectively prevent the motor from shaking or moving during the test, ensuring the accuracy and safety of the test.

[0031] The test platform 6 includes a mounting base plate 61 and a motor connecting seat 62, and the motor connecting seat 62 is provided with a base mounting table 63, the mounting base plate 61 is used for mounting the motor connecting seat 62 on the base 1, and the base mounting table 63 is used for mounting the fixed end of the motor. In the embodiment, the mounting base plate 61 serves as a bridge connecting the motor connecting seat 62 and the base 1, ensuring the stability of the entire test platform 6 and providing a solid foundation for subsequent motor load testing. The base mounting table 63 provided on the motor connecting seat 62 accurately positions the fixed end of the motor, effectively improving the stability and accuracy of the motor during testing.

[0032] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An electrical machine load testing apparatus, characterized by: The application relates to a motor testing device, which comprises a base and a testing assembly, wherein the testing assembly comprises, in sequence, a hysteresis brake, a torque sensor, a rotating fixing element and a testing platform, one end of the hysteresis brake is connected with the torque sensor, one end of the torque sensor is connected with the rotating fixing element, the rotating fixing element is provided with a fixing jig for connecting the output end of a motor, and the testing platform is used for mounting the fixed end of the motor.

2. The motor load testing device of claim 1, wherein: A plurality of testing installation grooves are arranged on the base, and each testing installation groove is provided with a testing assembly; one side of the testing installation groove is provided with a positioning end plate, and the testing platform is arranged on the positioning end plate.

3. The motor load testing device of claim 1, wherein: Both sides of the base are provided with sliding rails, sliding blocks are arranged on the sliding rails, protective covers are arranged on the sliding blocks, the protective covers are located above the testing assemblies, and the protective covers are slidably arranged on the sliding rails through the sliding blocks.

4. The motor load testing device of claim 1, wherein: Grooves are arranged on both sides of the base at the torque sensor, a supporting column is arranged on the lower surface of the base, the supporting column is used for supporting the base, and the lower surface of the base is suspended, and the grooves penetrate through the thickness direction of the base.

5. The motor load testing device of claim 1, wherein: One end of the hysteresis brake is provided with a first coupling shaft, and the hysteresis brake is connected with the torque sensor through the first coupling shaft; one end of the torque sensor is provided with a second coupling shaft, and the torque sensor is connected with the rotating fixing element through the second coupling shaft.

6. The motor load testing device of claim 5, wherein: One end of the hysteresis brake is provided with a first connecting shaft, both ends of the torque sensor are respectively provided with a first torque shaft and a second torque shaft, and the first coupling shaft is used for connecting the first connecting shaft with the first torque shaft; the rotating fixing element is provided with a second connecting shaft, and the second coupling shaft is used for connecting the second torque shaft with the second connecting shaft.

7. The motor load testing device of claim 1, wherein: The rotating fixing element is provided with a rotating fixing disc, the fixing jig is arranged on the rotating fixing disc, and the fixing jig is opposite to the testing platform.

8. The motor load testing device of claim 7, wherein: One side of the rotating fixing disc is provided with a rotating support seat, and the rotating fixing disc is rotatably arranged on the rotating support seat through a bearing.

9. The motor load testing device of claim 1, wherein: The fixing jig is provided with a mounting positioning groove, mounting positioning holes are arranged on the outer periphery of the fixing jig, and the mounting positioning groove and the mounting positioning holes are used for positioning and mounting the output end of the motor.

10. The motor load testing device of claim 1, wherein: The testing platform comprises a mounting base plate and a motor connecting seat, a base mounting table is arranged on the motor connecting seat, the mounting base plate is used for mounting the motor connecting seat on the base, and the base mounting table is used for mounting the fixed end of the motor.

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