Rapid load test equipment for motor

Abstract

The utility model relates to the technical field of motor detection, and especially relates to a motor rapid load test device comprising a rack and a load test machine arranged on the rack, the rack is provided with a material placing assembly used for placing a tested motor; the discharging assembly comprises a discharging disc rotationally connected to the rack, a plurality of mounting grooves formed in the discharging disc and a discharging motor used for driving the discharging disc to rotate, the mounting grooves are evenly formed in the circumferential direction of the discharging disc at intervals, and a mounting ring is arranged on the load testing machine; the installation ring is provided with a connecting groove used for being connected with an output shaft of a tested motor, and the connecting groove is of an arc-shaped structure. The motor detection device has the effect of improving the detection efficiency of the motor.

Description

Technical Field

[0001] This utility model relates to the technical field of motor testing, and in particular to a rapid load testing device for motors. Background Technology

[0002] A brushless motor mainly consists of three components: an electronic switching circuit, a permanent magnet synchronous motor, and a position sensor. When a phase of the stator winding is energized, the current interacts with the magnetic field generated by the rotor poles to produce torque, driving the rotor to rotate. With the development of electronic technology and control theory, brushless DC motors have gradually improved and are widely used in various fields. Motor load testing equipment is one of the important means of evaluating motor performance. By simulating the actual load conditions of the motor during operation, the performance of the motor can be comprehensively and accurately tested and evaluated. This helps ensure that the motor can operate stably under various operating conditions and meet design requirements. At the same time, motor load testing equipment can also provide strong support for motor design optimization and fault diagnosis. Therefore, a brushless motor load detection device is needed.

[0003] For example, the announcement number CN220730380U describes a motor load testing device, which includes a testing platform and a testing motor placed on the testing platform. It also includes a positioning assembly, comprising a positioning groove formed on the testing platform, two positioning frames slidably mounted in the positioning groove, a positioning hole between the two relatively sliding positioning frames, a wedge block slidably mounted in the positioning hole, and a transmission component between the wedge block and the positioning frames. When the wedge block moves downward, the two positioning frames move closer together. The motor's own gravity presses against the wedge block, driving the two positioning frames to move closer together, clamping and fixing the motor. Then, the testing device tests the motor under test.

[0004] While the aforementioned technologies can detect motor loads, the testing process requires fixing the motor on a testing platform, connecting the output shaft of the motor under test to the testing device, and then testing the motor. After the test is completed, the testing device needs to be stopped, the tested motor removed from the testing platform, and then the untested motor installed on the testing platform. Only after installation can subsequent tests continue, which reduces the efficiency of motor testing. Utility Model Content

[0005] In order to improve the testing efficiency of motors, this application provides a rapid load testing device for motors.

[0006] The rapid load testing device for motors provided in this application adopts the following technical solution:

[0007] A rapid load testing device for motors includes a frame and a load testing machine mounted on the frame. The frame is provided with a feeding assembly for placing the motor under test. The feeding assembly includes a feeding tray rotatably connected to the frame, multiple mounting slots formed on the feeding tray, and a feeding motor for driving the feeding tray to rotate. The multiple mounting slots are evenly spaced along the circumference of the feeding tray. The load testing machine is provided with a mounting ring, and the mounting ring is provided with a connecting slot for connecting with the output shaft of the motor under test. The connecting slot is configured as an arc-shaped structure.

[0008] Optionally, the mounting ring is provided with a fixing component for connecting to the output shaft of the motor under test. The fixing component is rotatably connected to a fixing rod on the mounting ring, a fixing block for connecting to the spline groove on the output shaft of the motor under test, and a torsion spring for driving the fixing rod to a vertical position.

[0009] Optionally, the feeding tray is provided with multiple positioning components for positioning the spline groove on the output shaft of the motor under test. After positioning, the spline groove on the output shaft of the motor under test corresponds to the fixing block. The positioning components correspond one-to-one with the mounting slots. The positioning components include a positioning rod rotatably connected to the feeding tray and a positioning block fixed on the positioning rod. The positioning block is used to insert into the spline groove on the output shaft of the motor under test. The feeding tray is provided with a drive component for driving the positioning rod to rotate.

[0010] Optionally, the drive assembly includes a drive shaft rotatably connected to the feeding tray, a drive gear fixed to the drive shaft, and a drive rack fixed to the frame. The drive shaft is fixed to a positioning rod, the drive gear and the drive rack mesh, and multiple drive gears are provided, with each drive gear corresponding to a different positioning rod.

[0011] Optionally, the feeding tray is provided with a clamping assembly for clamping and fixing the motor under test. The clamping assembly includes a sliding rod slidably connected to the feeding tray, a pressure plate fixed on the sliding rod, and a clamping spring sleeved on the sliding rod. One end of the clamping spring is fixed to the feeding tray, and the other end is fixed to the sliding rod. The clamping spring is used to drive the pressure plate to move closer to the feeding tray.

[0012] Optionally, the clamping plate is provided with an inclined surface.

[0013] Optionally, the clamping plate is provided with a limiting groove for engaging the motor under test.

[0014] Optionally, an elastic clamping block is provided in the limiting groove.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] 1. During the inspection, the motor that has completed the inspection can be removed from the feeding tray, thereby achieving the purpose of feeding and unloading while inspecting, thus improving the inspection efficiency of the motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the driver component structure according to an embodiment of this application.

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the fixed component structure according to an embodiment of this application.

[0021] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0022] Reference numerals: 1. Frame; 11. Load testing machine; 12. Inclined surface; 13. Limiting groove; 14. Elastic clamping block; 2. Feeding assembly; 21. Feeding tray; 22. Mounting groove; 23. Feeding motor; 3. Clamping assembly; 31. Sliding rod; 32. Pressure plate; 33. Clamping spring; 4. Mounting ring; 41. Connecting groove; 5. Fixing assembly; 51. Fixing rod; 52. Fixing block; 53. Torsion spring; 54. Fixing shaft; 6. Positioning assembly; 61. Positioning rod; 62. Positioning block; 7. Drive assembly; 71. Drive shaft; 72. Drive gear; 73. Drive rack. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This utility model embodiment provides a rapid load testing device for motors, referring to... Figures 1-5 The motor rapid load testing equipment includes a frame 1 and a load testing machine 11 mounted on the frame 1. The frame 1 is also equipped with a feeding assembly 2 for mounting the motor under test. After the motor under test is mounted on the feeding assembly 2, the load testing machine 11 can be used to test the motor fixed on the feeding assembly 2.

[0027] The feeding assembly 2 includes a feeding disc 21 rotatably connected to the frame 1, a plurality of mounting slots 22 formed on the feeding disc 21, and a feeding motor 23 fixed to the frame 1. The output shaft of the feeding motor 23 is fixedly connected to the feeding disc 21. The rotation of the feeding motor 23 can drive the feeding disc 21 to rotate. In this embodiment, the plurality of mounting slots 22 are evenly spaced along the circumference of the feeding disc 21. The mounting slots 22 are set as C-shaped slots, and the output shaft of the motor under test can be snapped into the mounting slot 22.

[0028] Multiple clamping components 3 for clamping and fixing the motor under test are provided on the feeding tray 21, and the multiple clamping components 3 correspond one-to-one with multiple mounting slots 22. The clamping component 3 includes a sliding rod 31 slidably connected to the feeding tray 21, a pressure plate 32 fixed to the sliding rod 31, and a clamping spring 33 sleeved on the sliding rod 31. One end of the clamping spring 33 is fixed to the feeding tray 21, and the other end is fixed to the sliding rod 31. The sliding rod 31 slides in the vertical direction, and the clamping spring 33 is used to pull the pressure plate 32 to move closer to the feeding tray 21. The pressure plate 32 is set above the mounting slot 22. When the output shaft of the motor under test is engaged in the mounting slot 22, the clamping spring 33 causes the pressure plate 32 to abut against the end face of the motor under test, thereby fixing the motor under test. This makes the motor under test more stable during the load tester 11 test.

[0029] An inclined surface 12 is provided on the clamping plate 32, which gradually slopes towards the feed tray 21 from the direction near the sliding rod 31. A limiting groove 13 is also provided on the clamping plate 32, and an elastic clamping block 14 is installed within the limiting groove 13. When installing the motor under test, the output shaft of the motor under test is aligned with the opening of the mounting groove 22, and then the end face of the motor under test abuts against the inclined surface 12. Pushing the motor under test causes its output shaft to engage within the mounting groove 22. Simultaneously, the motor under test pushes the clamping plate 32 upwards, stretching the clamping spring 33 and moving the motor into the limiting groove 13. The elastic clamping block 14 is compressed, thus better securing the motor under test within the limiting groove 13. Because the elastic clamping block 14 is in a compressed state, the motor under test is more effectively secured.

[0030] A mounting ring 4 is provided on the load testing machine 11, and a connecting groove 41 is provided on the mounting ring 4. As the feeding plate 21 rotates, the connecting groove 41 is set into an arc structure, which facilitates the output shaft of the motor under test to rotate into the connecting groove 41 on the mounting ring 4, and then facilitates the load testing machine 11 to drive the motor under test to rotate.

[0031] During testing, multiple motors to be tested need to be placed into the mounting slot 22 in sequence, and the motors to be tested are fixed by the clamping plate 32. Then, the feeding motor 23 rotates. When the output shaft of the motor to be tested rotates into the connecting slot 41 on the mounting ring 4, the load testing machine 11 drives the motor to be tested on the feeding plate 21 to rotate.

[0032] The mounting ring 4 is provided with a fixing component 5 for fixing the output shaft of the motor under test that rotates into the connecting groove 41, and the feeding tray 21 is provided with a positioning component 6 for positioning the spline groove on the output shaft of the motor under test.

[0033] The fixing assembly 5 includes a fixing rod 51 rotatably connected to the mounting ring 4, a fixing block 52 for connecting with the spline groove on the output shaft of the motor under test, and a torsion spring 53 for driving the fixing rod 51 to a vertical state. A fixing shaft 54 ​​is fixedly mounted on the fixing rod 51. The torsion spring 53 is sleeved on the fixing shaft 54, with one end of the torsion spring 53 fixed to the fixing shaft 54 ​​and the other end fixed to the mounting ring 4. The torsion spring 53 keeps the fixing rod 51 in a vertical state. When the output shaft of the motor under test rotates to the connecting groove 41 and is coaxial with the mounting ring 4, the fixing block 52 is located in the spline groove of the output shaft of the motor under test. Then, the output shaft of the motor under test is fixed to the mounting ring 4 by the fixing block 52, thereby improving the connection strength between the output shaft of the motor under test and the mounting ring 4. After the test motor in the connecting groove 41 is completed, the feeding tray 21 rotates. During the rotation, it will push the fixing rod 51 to rotate, and the fixing block 52 will disengage from the spline groove of the output shaft of the test motor. At the same time, the torsion spring 53 is in a charged state. After the motor output shaft is disengaged from the connecting groove 41 after the test is completed, the fixing rod 51 and the fixing block 52 will be reset under the action of the torsion spring 53, which will facilitate the fixing of the output shaft of the subsequent test motor.

[0034] The positioning component 6 includes a positioning rod 61 rotatably connected to the feeding tray 21 and a positioning block 62 fixed on the positioning rod 61. The positioning block 62 is used to position the spline groove on the output shaft of the motor under test, and then rotates the spline groove into the connecting groove 41 to correspond with the fixing block 52. In this embodiment, multiple positioning components 6 are provided, and multiple positioning components 6 correspond one-to-one with multiple mounting grooves 22. At the same time, a drive component 7 is provided on the frame 1 to drive the positioning rod 61 to rotate. When the output shaft of the motor under test rotates into the connecting groove 41, the drive component 7 disengages the positioning block 62 from the spline groove, and then the fixing block 52 is in the spline groove.

[0035] The drive assembly 7 includes a drive shaft 71 rotatably connected to the feeding disc 21, a drive gear 72 fixed on the drive shaft 71, and a drive rack 73 fixed on the frame 1. Multiple drive gears 72 are provided, and each drive gear 72 corresponds to a multiple positioning assembly 6. The drive rack 73 meshes with the drive gears 72.

[0036] When installing the motor under test on the feeding tray 21, adjust the position of the motor under test so that the spline groove on the output shaft of the motor under test corresponds to the positioning block 62, and the positioning block 62 is placed in the spline groove. Then the feeding tray 21 rotates. When it rotates, it will drive the drive gear 72 on the feeding tray 21 to rotate. Then, when the drive gear 72 and the drive rack 73 mesh, the drive rack 73 will drive the drive gear 72 to rotate. The drive gear 72 will drive the drive shaft 71, the positioning rod 61 and the positioning block 62 to rotate. During the rotation, the positioning block 62 will disengage from the spline groove. Then, as the feeding tray 21 continues to rotate, the fixing block 52 can be placed in the fixing groove, thereby improving the connection strength between the mounting ring 4 and the output shaft of the motor under test.

[0037] The implementation principle of the motor rapid load testing device in this application embodiment is as follows: multiple motors under test are installed on the feeding tray 21, and the positioning block 62 is placed in the spline groove. At this time, the position of the output shaft on the motor under test is positioned. Then, the feeding tray rotates, which drives the drive gear 72 on the feeding tray 21 to rotate. When the drive gear 72 and the drive rack 73 mesh, the drive rack 73 drives the drive gear 72 to rotate. The drive gear 72 drives the drive shaft 71, the positioning rod 61 and the positioning block 62 to rotate. During the rotation, the positioning block 62 will disengage from the spline groove. Then, as the feeding tray 21 continues to rotate, the fixing block 52 can be placed in the fixing groove, thereby improving the connection strength between the mounting ring 4 and the output shaft of the motor under test.

[0038] After the motor under test on the mounting ring 4 is tested, the mounting ring 4 is in the initial position, and the connecting groove 41 rotates to the initial position. Then the feeding tray 21 continues to rotate. At this time, the motor output shaft in the connecting groove 41 will push the fixing rod 51 to rotate, and the fixing block 52 will disengage from the spline groove. Then the adjacent motor that has not been tested moves to the connecting groove 41. At this time, the motor under test can continue to be tested. While testing, the motor that has been tested can be removed from the feeding tray 21, thereby achieving the purpose of feeding and unloading while testing, and thus improving the testing efficiency of the motor.

[0039] The above embodiments illustrate only one implementation method of this disclosure, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the utility model concept of this disclosure, and these all fall within the protection scope of this disclosure.

Claims

1. A rapid load testing device for an electric motor, comprising a frame (1) and a load testing machine (11) mounted on the frame (1), characterized in that: The frame (1) is provided with a feeding assembly (2) for placing the motor under test. The feeding assembly (2) includes a feeding plate (21) rotatably connected to the frame (1), a plurality of mounting slots (22) opened on the feeding plate (21), and a feeding motor (23) for driving the feeding plate (21) to rotate. The plurality of mounting slots (22) are evenly spaced along the circumference of the feeding plate (21). The load testing machine (11) is provided with a mounting ring (4). The mounting ring (4) is provided with a connecting slot (41) for connecting with the output shaft of the motor under test. The connecting slot (41) is set with an arc-shaped structure.

2. The motor rapid load testing device according to claim 1, characterized in that: The mounting ring (4) is provided with a fixing component (5) for connecting to the output shaft of the motor under test. The fixing component (5) is rotatably connected to a fixing rod (51) on the mounting ring (4), a fixing block (52) for connecting to the spline groove on the output shaft of the motor under test, and a torsion spring (53) for driving the fixing rod (51) to be in a vertical state.

3. The rapid load testing device for motors according to claim 2, characterized in that: The feeding tray (21) is provided with multiple positioning components (6) for positioning the spline groove on the output shaft of the motor under test. After positioning, the spline groove on the output shaft of the motor under test corresponds to the fixing block (52). The positioning components (6) correspond one-to-one with the mounting slots (22). The positioning components (6) include a positioning rod (61) rotatably connected to the feeding tray (21) and a positioning block (62) fixed on the positioning rod (61). The positioning block (62) is used to insert into the spline groove on the output shaft of the motor under test. The feeding tray (21) is provided with a drive component (7) for driving the positioning rod (61) to rotate.

4. The motor rapid load testing device according to claim 3, characterized in that: The drive assembly (7) includes a drive shaft (71) rotatably connected to the feeding tray (21), a drive gear (72) fixed on the drive shaft (71), and a drive rack (73) fixed on the frame (1). The drive shaft (71) is fixed on the positioning rod (61). The drive gear (72) and the drive rack (73) mesh with each other. Multiple drive gears (72) are provided, and multiple drive gears (72) correspond one-to-one with multiple positioning rods (61).

5. The rapid load testing device for a motor according to claim 4, characterized in that: The feeding tray (21) is provided with a clamping assembly (3) for clamping and fixing the motor under test. The clamping assembly (3) includes a sliding rod (31) slidably connected to the feeding tray (21), a pressure plate (32) fixed on the sliding rod (31), and a clamping spring (33) sleeved on the sliding rod (31). One end of the clamping spring (33) is fixed on the feeding tray (21), and the other end is fixed on the sliding rod (31). The clamping spring (33) is used to drive the pressure plate (32) to move closer to the feeding tray (21).

6. The motor rapid load testing device according to claim 5, characterized in that: The clamping plate (32) is provided with a slope (12).

7. The rapid load testing device for a motor according to claim 6, characterized in that: The clamping plate (32) is provided with a limiting groove (13) for engaging the motor under test.

8. The rapid load testing device for a motor according to claim 7, characterized in that: An elastic clamping block (14) is provided inside the limiting groove (13).

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