Motor torque test equipment

Abstract

The utility model discloses motor torque test equipment, which comprises a bottom frame, a torque sensor and a magnetic powder brake, the torque sensor and the magnetic powder brake are arranged on the bottom frame, a lifting plate is arranged on the bottom frame in a lifting manner, a moving plate is arranged on the lifting plate in a sliding manner, and the moving plate is used for mounting a motor to be tested. The moving plate can be close to or away from the torque sensor in the axial direction of the torque sensor, the input end of the torque sensor is fixedly connected with a first coupler used for being connected with a motor to be tested, and the output end of the torque sensor is fixedly connected with a second coupler. The second coupler is connected to the input end of the magnetic powder brake, and the bottom frame is provided with a photoelectric sensing assembly used for measuring the actual rotating speed of the motor to be measured. The motor testing device has the advantages of being wide in testing power range, suitable for testing different types of motors, simple in structure, easy and convenient to operate and capable of guaranteeing safety, diversity and flexibility of motor testing.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor torque testing device. Background Technology

[0002] With the global trend towards carbon neutrality and the rapid growth of new energy vehicles, the lithium battery industry is booming, and the application prospects of lithium battery equipment are broad. However, lithium battery equipment has high requirements for motor performance, especially motor torque and response speed, which directly determine the operating status of the equipment. Therefore, testing newly introduced motors has become a crucial part of the industry.

[0003] Existing electrode testing devices typically employ a clamping and fixing mechanism to hold and fix the motor, then adjust the position of the test chamber to mate with the motor under test for performance testing. However, in this application, the clamping and fixing mechanism primarily serves to hold the motor, leaving the motor head exposed, posing a safety hazard due to accidental contact. Furthermore, the operation of the test chamber is relatively independent of the clamping and fixing mechanism, making docking and debugging difficult and time-consuming, resulting in relatively low work efficiency. Additionally, the test chamber has a defined power load range, offering limited compatibility for testing motors with different power ratings.

[0004] In view of this, the purpose of this utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a motor torque testing device, which solves the problem of difficult docking and debugging between the testing device and the motor under test, which requires a lot of time.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A motor torque testing device includes a base frame and a torque sensor and a magnetic powder brake mounted on the base frame. A lifting plate is movably mounted on the base frame, and a movable plate is slidably mounted on the lifting plate. The movable plate is used to mount the motor under test. The movable plate can move closer to or further away from the torque sensor along its axial direction. A first coupling for connecting the motor under test is fixedly connected to the input end of the torque sensor, and a second coupling is fixedly connected to the output end of the torque sensor. The second coupling is connected to the input end of the magnetic powder brake. A photoelectric sensing component for measuring the actual rotational speed of the motor under test is mounted on the base frame.

[0008] In the above structure, a first slider is fixedly connected to the bottom perimeter of the movable plate, and a first groove is opened on the side of the lifting plate facing the movable plate. The first slider is slidably connected to the first groove, and the first slider has a "T" shape. The cross-section of the first groove also has a "T" shape. The length direction of the first groove is parallel to the axial direction of the torque sensor.

[0009] In the above structure, a lifting base plate is fixedly connected to the base frame, and a worm gear screw lifting mechanism is provided on the lifting base plate. The worm gear screw lifting mechanism is connected to the lifting plate to drive the lifting plate to rise and fall.

[0010] The input end of the worm gear screw lifting mechanism is connected to a drive shaft, and the end of the drive shaft is fixedly connected to a rotary handwheel. Rotating the rotary handwheel can drive the worm gear screw lifting mechanism to lift. A clamping block is fixedly connected to the lifting base plate to restrict the rotation of the drive shaft.

[0011] In the above structure, the lifting base plate has sliding holes around its perimeter, and a sliding sleeve is fixedly installed on the lifting base plate within the sliding holes. Guide rods corresponding to the sliding sleeves are fixed around the lifting plate, and the guide rods are slidably connected to the sliding sleeves.

[0012] In the above structure, a scale for measuring the lifting distance is fixedly installed on one side of the lifting plate, and a pointer pointing to the scale is fixedly connected to the lifting base plate.

[0013] In the above structure, a mounting base plate is fixedly connected to the base frame, a mounting plate is slidably connected to the mounting base plate, and the torque sensor and magnetic powder brake are fixedly connected to the mounting plate.

[0014] The mounting plate has a second slider fixedly installed on both sides of its bottom. The second slider has a "T" shaped structure. The mounting base plate has a second groove with a "T" shaped cross-section. The length of the second groove is parallel to the axial direction of the torque sensor. The second slider is slidably connected to the second groove.

[0015] In the above structure, a mounting platform is fixedly connected to the movable plate, the bottom of the motor under test is detachably fixed to the mounting platform, and an anti-rotation block located on the periphery of the bottom of the motor under test is detachably fixed to the mounting platform; or

[0016] A mounting bracket is fixedly connected to the movable plate. One end of the output shaft of the motor under test is detachably fixed to the mounting bracket, and the output shaft of the motor under test extends out from the mounting bracket.

[0017] In the above structure, the photoelectric sensing component includes a U-shaped photoelectric switch and a sensing plate. The U-shaped photoelectric switch is fixedly mounted on the base frame, and the sensing plate is located at the input end of the magnetic powder brake. During the rotation of the sensing plate, it will pass through the sensing range of the U-shaped photoelectric switch. The U-shaped photoelectric switch is used to sense the sensing plate.

[0018] In the above structure, a transparent cover is fixedly installed on the base frame, the torque sensor and the magnetic powder brake are installed inside the transparent cover, and the transparent cover is equipped with a switch door.

[0019] The above structure also includes a liquid crystal display screen, which is connected to the torque sensor, magnetic powder brake and photoelectric sensing component. The liquid crystal display screen is mounted on a transparent cover to display various measurement values ​​in real time.

[0020] The beneficial effects of this utility model are: by setting a magnetic powder brake to directly simulate the load, it meets the diverse and accurate requirements of motor torque testing; and the motor torque testing equipment of this utility model can adjust the height and axial distance of the motor under test, making the equipment applicable to motors of different specifications. The connection and debugging between the testing equipment and the motor under test is simple and convenient, effectively improving the testing efficiency. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a front view of the utility model;

[0024] Figure 3 This is a schematic diagram of the installation structure of the motor to be tested in this utility model;

[0025] Figure 4 This is a schematic diagram of another installation structure of the motor to be tested in this utility model;

[0026] Figure 5 This is a schematic diagram of the installation structure of the torque sensor and magnetic powder brake of this utility model.

[0027] Figure label:

[0028] 1. Base frame; 11. Lifting base plate; 12. Lifting plate; 121. Moving plate; 1211. First slider; 122. First slide rail; 123. Mounting platform; 124. Anti-rotation block; 125. Mounting bracket; 13. Mounting base plate; 131. Mounting plate; 1311. Second slider; 132. Second slide rail; 14. Transparent cover; 141. Opening and closing door; 15. Ruler; 16. Pointer;

[0029] 2. Torque sensor; 21. First coupling; 22. Second coupling;

[0030] 3. Magnetic powder brake;

[0031] 4. Worm gear screw lifting mechanism; 41. Drive shaft; 411. Clamping block; 42. Rotary handwheel; 43. Sliding sleeve; 44. Guide rod;

[0032] 5. Photoelectric sensing component; 51. U-shaped photoelectric switch; 52. Sensing sheet;

[0033] 6. LCD screen;

[0034] 7. The motor to be tested. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described below.

[0036] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0037] Reference Figures 1 to 5This utility model provides a motor torque testing device that can test motors with different torques. It includes a base frame 1, a torque sensor 2, a magnetic powder brake 3, and a photoelectric sensing component 5. The base frame 1 serves as the foundation of the entire device, supporting all components. It can be a frame structure, a tabletop structure, or any other structure that achieves the above functions. In this embodiment, the base frame 1 is a frame structure. The torque sensor 2 detects the output torque of the motor, and the magnetic powder brake 3 simulates the load. The photoelectric sensing component 5 is mounted on the base frame 1 and detects the actual rotational speed of the motor under test 7 under different loads. A lifting plate 12 is vertically adjustable on the base frame 1, and a sliding plate 121 is slidably mounted on the lifting plate 12. The sliding plate 121 is used to mount the motor under test 7 and can move closer to or further away from the torque sensor 2 along the axial direction of the motor under test 7. The input end of torque sensor 2 is fixedly connected to a first coupling 21, the output end of the motor under test 7 is fixedly connected to the first coupling 21, and the output end of torque sensor 2 is fixedly connected to a second coupling 22. The input end of magnetic powder brake 3 is connected to torque sensor 2 via the second coupling 22. The motor torque testing equipment of this invention can adjust the height of the motor under test 7 by adjusting the height of the lifting plate 12, making the output shaft of the motor under test 7 coaxial with the torque sensor 2. Simultaneously, by adjusting the distance between the moving plate 121 and the torque sensor 2, the motor under test 7 can be moved closer to or further away from the torque sensor 2 in its axial direction, thus achieving connection and disconnection between the motor under test 7 and the torque sensor 2. Through the height adjustment of the lifting plate 12 and the axial adjustment of the moving plate 121, the motor torque testing equipment can adapt to the loading conditions of different motors, effectively improving the applicability of the equipment.

[0038] Reference Figures 1 to 3 Furthermore, a first slider 1211 is fixedly connected to the bottom of the movable plate 121, and a first groove 122 is provided on the side of the lifting plate 12 facing the movable plate 121. The first groove 122 is correspondingly provided with the first slider 1211, and the length direction of the first groove 122 is parallel to the axial direction of the motor 7 under test. The first slider 1211 is slidably connected to the first groove 122. Specifically, the first slider 1211 has a "T" shaped structure, and the cross-section of the corresponding first groove 122 is set to a "T" shaped structure. The first slider 1211 and the first groove 122 cooperate to guide the sliding of the movable plate 121, so as to ensure that the sliding of the movable plate 121 can be coaxial with the motor 7 under test. Both the first slider 1211 and the first groove 122 are set to a "T" shaped structure, which effectively limits the movable plate 121 and effectively reduces the possibility of the movable plate 121 disengaging from the lifting plate 12 during the movement.

[0039] In this embodiment, first sliders 1211 are fixedly provided around the bottom of the movable plate 121. The first sliders 1211 are provided around the bottom to effectively ensure the sliding stability of the movable plate 121 and reduce the possibility that the movable plate 121 will deflect along with the motor 7 under test during the torque detection process.

[0040] Reference Figure 3 In this embodiment, a mounting platform 123 is fixedly connected to the movable plate 121. The bottom of the motor under test 7 is detachably mounted on the mounting platform 123 for testing. Specifically, the bottom of the motor under test 7 and the mounting platform 123 can be connected and fixed with common fasteners such as screws. An anti-rotation block 124 is detachably fixed on the mounting platform 123. The anti-rotation block 124 is disposed on the periphery of the bottom of the motor under test 7. The anti-rotation block 124 can also be detachably fixed to the mounting platform 123 with common fasteners such as screws. The anti-rotation block 124 is provided to reduce the possibility of relative deflection between the motor under test 7 and the mounting platform 123 under its torque during operation.

[0041] Reference Figure 4 In other embodiments, a mounting bracket 125 is fixedly connected to the movable plate 121. The end face of the motor under test 7 is mounted on the mounting bracket 125, and the output shaft of the motor under test 7 extends from the mounting bracket 125 and connects to the torque sensor 2 for testing. Specifically, one end face of the output shaft of the motor under test 7 is detachably mounted on the mounting bracket 125, and the end face of the motor under test 7 and the mounting bracket 125 can be connected and fixed with common fasteners such as screws. Connecting and fixing the end face of the motor under test 7 to the mounting bracket 125 with fasteners can also effectively reduce the possibility of the motor under test 7 twisting during operation.

[0042] Reference Figure 1 , Figure 2 and Figure 5The lifting plate 12 is elliptical and can be mounted on the base frame 1. Specifically, a lifting base plate 11 is fixedly connected to the base frame 1, and a worm gear screw lifting mechanism 4 is mounted on the lifting base plate 11. The worm gear screw lifting mechanism 4 is connected to the lifting plate 12 to drive the lifting plate 12 to rise and fall. Using a worm gear screw lifting mechanism 4 to achieve the lifting of the structure is a well-known and feasible technique among those skilled in the art. Its specific structural form can be found in the prior art and will not be described in detail here. The input end of the worm gear screw lifting mechanism 4 is connected to a transmission shaft 41, and the end of the transmission shaft 41 is fixedly connected to a rotating handwheel 42. The rotating handwheel 42 is used to drive the rotating transmission shaft 41 to rotate, thereby driving the worm gear in the worm gear screw lifting mechanism 4 to rotate, which in turn drives the screw in the worm gear screw lifting mechanism 4 to rise and fall, ultimately realizing the lifting of the lifting plate 12. A clamping block 411 is also fixedly connected to the lifting base plate 11. The clamping block 411 is used to restrict the rotation of the transmission shaft 41. In this embodiment, a clamping block 411 with a fixed handle is used. Rotating the rotating handwheel 42 drives the worm gear screw lifting mechanism 4 to lift and lower. After adjusting the lifting plate 12 to the required height, tightening the fixed handle on the clamping block 411 locks the transmission shaft 41 to restrict the rotation of the transmission shaft 41, so that the lifting plate 12 is kept at the required height.

[0043] Furthermore, the lifting base plate 11 has sliding holes around its perimeter, and a sliding sleeve 43 is fixedly installed on the lifting base plate 11 within the sliding holes. Guide rods 44 are fixedly connected around the lifting plate 12, and the guide rods 44 correspond one-to-one with the sliding sleeves 43 and are slidably connected to the sliding sleeves 43. The guide rods 44 and the sliding sleeves 43 work together to guide and support the lifting of the lifting plate 12, effectively ensuring the stability of the lifting plate 12 during lifting and reducing the possibility of deflection or swaying of the lifting plate 12 during lifting.

[0044] Furthermore, a scale 15 for measuring the lifting distance of the lifting plate 12 is fixedly installed on one side of the lifting plate 12, and a pointer 16 pointing to the scale 15 is fixedly connected to the lifting base plate 11. For easy observation, the scale 15 and the rotating handwheel 42 are located on the same side. When using the lifting plate 12, the value pointed to by the pointer 16 can be viewed by rotating the rotating handwheel 42 to adjust the height of the lifting plate 12, so as to ensure the accuracy of the lifting distance.

[0045] The torque sensor 2 and the magnetic powder brake 3 are mounted on the base frame 1. Specifically, a mounting base plate 13 is fixedly connected to the base frame 1, and a mounting plate 131 is slidably connected to the mounting base plate 13. The torque sensor 2 and the magnetic powder brake 3 are respectively fixedly mounted on the mounting plate 131. Second sliders 1311 are fixedly connected to opposite sides of the bottom of the mounting plate 131. A second sliding groove 132 is provided on the mounting base plate 13, and the length direction of the second sliding groove 132 is parallel to the axial direction of the motor 7 under test. The second sliders 1311 are slidably connected to the second sliding groove 132, realizing the sliding connection between the mounting plate 131 and the mounting base plate 13. In this embodiment, the second slider 1311 has a "T" shaped structure, and correspondingly, the second sliding groove 132 is also set as a "T" shaped structure, that is, the cross-section of the second sliding groove 132 is a "T" shaped structure that matches the second slider 1311. The second slider 1311 cooperates with the second slide groove 132 to guide and limit the sliding of the mounting plate 131, effectively ensuring the sliding stability of the mounting plate 131.

[0046] The torque sensor 2 and the magnetic powder brake 3 can also be slidably set, and the distance between the motor under test 7 and the torque sensor 2 can be adjusted by dragging the mounting plate 131, which reduces the installation difficulty of the motor under test 7.

[0047] Reference Figure 1 and Figure 3 The photoelectric sensing component 5 is used to detect the actual rotational speed of the motor under test 7 under different loads. Specifically, the photoelectric sensing component 5 includes a U-shaped photoelectric switch 51 and a sensing plate 52. The U-shaped photoelectric switch 51 is fixedly mounted on the base frame 1, and the sensing plate 52 is located at the input end of the magnetic powder brake 3. During rotation, the sensing plate 52 will pass through the sensing range of the U-shaped photoelectric switch 51, and the U-shaped photoelectric switch 51 is used to sense the sensing plate 52. During the test, the actual rotational speed of the motor under test 7 can be calculated by recording the number of times the sensing plate 52 passes through the U-shaped photoelectric switch 51 per unit time.

[0048] Reference Figure 1 Furthermore, the base frame 1 is equipped with a transparent cover 14, and the torque sensor 2 and magnetic powder brake 3, among other detection structures, are all housed within the transparent cover 14. The transparent cover 14 also features a switch door 141. The transparent cover 14 protects the simulated load portion, effectively preventing accidental contact by personnel or foreign objects with the simulated load during testing, ensuring the safety of the testing process. Its transparent design also allows personnel to directly observe the operation within the transparent cover 14. The switch door 141 facilitates maintenance or relocation of the structures within the transparent cover 14.

[0049] Furthermore, the motor torque testing equipment also includes an LCD screen 6, which is mounted on a transparent cover 14 and is connected to the torque sensor 2, magnetic powder brake 3, and photoelectric sensing component 5 to display various measurement values ​​in real time.

[0050] The implementation process of this utility model is as follows:

[0051] The motor under test 7 is fixedly mounted onto the mounting platform 123 with screws. Then, the rotary handwheel 42 is rotated to drive the worm gear screw lifting mechanism 4 to move up and down until the output shaft of the motor under test 7 is coaxial with the input end of the torque sensor 2. At this time, the clamping block 411 is locked to fix the height of the motor under test 7. Then, the moving plate 121 is dragged to move the motor under test 7 axially closer to or away from the torque sensor 2, so that the output shaft of the motor under test 7 is aligned with the first coupling 21, and the two are connected and fixed, thus completing the installation of the motor under test 7. Next, the torque of the motor under test 7 can be tested, and the torque value can be read in real time from the LCD screen 6. After the test is completed, the output shaft of the motor under test 7 is disconnected from the first coupling 21, and then the motor under test 7 is removed from the mounting platform 123.

[0052] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A motor torque testing device, characterized in that: The device includes a base frame and a torque sensor and a magnetic powder brake mounted on the base frame. A lifting plate is movably mounted on the base frame, and a movable plate is slidably mounted on the lifting plate. The movable plate is used to mount the motor under test. The movable plate can move closer to or further away from the torque sensor along the axial direction of the torque sensor. The input end of the torque sensor is fixedly connected to a first coupling for connecting the motor under test, and the output end of the torque sensor is fixedly connected to a second coupling. The second coupling is connected to the input end of the magnetic powder brake. A photoelectric sensing component for measuring the actual speed of the motor under test is mounted on the base frame.

2. The motor torque testing device according to claim 1, characterized in that: The bottom of the movable plate is fixedly connected to the first slider around its perimeter. The lifting plate is provided with a first groove on the side facing the movable plate. The first slider is slidably connected to the first groove. The first slider has a "T" shape. The cross-section of the first groove also has a "T" shape. The length direction of the first groove is parallel to the axial direction of the torque sensor.

3. The motor torque testing device according to claim 1, characterized in that: A lifting base plate is fixedly connected to the base frame. A worm gear screw lifting mechanism is provided on the lifting base plate. The worm gear screw lifting mechanism is connected to the lifting plate and is used to drive the lifting plate to rise and fall. The input end of the worm gear screw lifting mechanism is connected to a drive shaft, and the end of the drive shaft is fixedly connected to a rotary handwheel. Rotating the rotary handwheel can drive the worm gear screw lifting mechanism to lift. A clamping block is fixedly connected to the lifting base plate to restrict the rotation of the drive shaft.

4. The motor torque testing device according to claim 3, characterized in that: The lifting base plate has sliding holes around its perimeter, and a sliding sleeve is fixedly installed on the lifting base plate within the sliding holes. Guide rods corresponding to the sliding sleeves are fixed around the lifting base plate, and the guide rods are slidably connected to the sliding sleeves.

5. The motor torque testing device according to claim 3, characterized in that: A scale for measuring the lifting distance is fixedly installed on one side of the lifting plate, and a pointer pointing to the scale is fixedly connected to the lifting base plate.

6. The motor torque testing device according to claim 1, characterized in that: A mounting base plate is fixedly connected to the base frame, and a mounting plate is slidably connected to the mounting base plate. The torque sensor and the magnetic powder brake are fixedly connected to the mounting plate. The mounting plate has a second slider fixedly installed on both sides of its bottom. The second slider has a "T" shaped structure. The mounting base plate has a second groove with a "T" shaped cross-section. The length of the second groove is parallel to the axial direction of the torque sensor. The second slider is slidably connected to the second groove.

7. The motor torque testing device according to claim 1, characterized in that: A mounting platform is fixedly connected to the movable plate, and the bottom of the motor under test is detachably fixed to the mounting platform. Anti-rotation blocks located around the bottom of the motor under test are detachably fixed to the mounting platform; or A mounting bracket is fixedly connected to the movable plate. One end of the output shaft of the motor under test is detachably fixed to the mounting bracket, and the output shaft of the motor under test extends out from the mounting bracket.

8. The motor torque testing device according to claim 1, characterized in that: The photoelectric sensing component includes a U-shaped photoelectric switch and a sensing plate. The U-shaped photoelectric switch is fixedly mounted on the base frame, and the sensing plate is located at the input end of the magnetic powder brake. During the rotation of the sensing plate, it will pass through the sensing range of the U-shaped photoelectric switch. The U-shaped photoelectric switch is used to sense the sensing plate.

9. The motor torque testing device according to claim 1, characterized in that: A transparent cover is fixedly installed on the base frame. The torque sensor and the magnetic powder brake are installed inside the transparent cover. The transparent cover is equipped with a switch door.

10. The motor torque testing device according to claim 9, characterized in that: It also includes an LCD screen, which is connected to the torque sensor, magnetic powder brake and photoelectric sensing component. The LCD screen is mounted on a transparent cover to display various measurement values ​​in real time.

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