Motor load testing device

Abstract

The utility model relates to the technical field of motor load testing, in particular to a motor load testing device, which is characterized in that a bottom plate is provided with a movable holder assembly, the movable holder assembly is connected with a self-centering clamping jaw vice, the self-centering clamping jaw vice is used for clamping a motor, the bottom plate is provided with a hysteresis load assembly, the hysteresis load assembly comprises a hysteresis load main shaft, and the hysteresis load main shaft is connected with the movable holder assembly. The hysteresis load main shaft is connected with a motor shaft of the motor through a coupler, a first one-way bearing and a second one-way bearing are arranged in the coupler, the motor shaft penetrates through the first one-way bearing and the second one-way bearing, and the first one-way bearing and the second one-way bearing are arranged in opposite directions. Compared with the prior art, the motor load testing device is simple in structure and convenient to use, solves the problem of rapid clamping during motor load detection, can be applied to large-batch load detection in the production process, can rapidly clamp and detect motors, and can effectively detect potential risk or bad motors.

Description

[Technical field]

[0001] The utility model relates to the technical field of motor load testing, in particular to a motor load testing device. [Background technology]

[0002] Because in the production line process, the electrical performance of the motor is mainly tested under no-load conditions, or some motors are randomly inspected under load in the laboratory, without a full load inspection of the motors. Therefore, a certain proportion of defective motors will still appear during the use of end customers, which may involve recalls and other large economic losses.

[0003] The motor load sampling inspection equipment in the existing technology is large and bulky, with slow motor clamping and detection speed. It is generally used for data testing in the design and development process, in the laboratory, or only for small-quantity testing. The testing cost is high and cannot meet the full inspection needs in the production process. [Contents of the utility model]

[0004] In order to overcome the above problems, the utility model provides a motor load testing device which can effectively solve the above problems.

[0005] The utility model provides a technical solution to solve the above technical problems: a motor load testing device is provided, comprising a base plate, a mobile pan-tilt assembly is arranged on the base plate, a self-centering clamping vise is connected to the mobile pan-tilt assembly, and the self-centering clamping vise is used to clamp the motor; a hysteresis load assembly is arranged on the base plate, and the hysteresis load assembly includes a hysteresis load main shaft, and the hysteresis load main shaft is connected to the motor shaft of the motor through a coupling; a first one-way bearing and a second one-way bearing are arranged in the coupling, and the motor shaft passes through the first one-way bearing and the second one-way bearing, and the first one-way bearing and the second one-way bearing are arranged in opposite directions.

[0006] Preferably, a first connecting hole and a second connecting hole are provided in the coupling, the hysteresis load main shaft is fixed in the first connecting hole, and the first one-way bearing and the second one-way bearing are fixed in the second connecting hole.

[0007] Preferably, the first connecting hole and the second connecting hole are arranged concentrically.

[0008] Preferably, a fixing hole is provided on the side of the coupling, which is connected to the first connecting hole and the second connecting hole respectively, and is used to fix the hysteresis load main shaft to the first connecting hole by screws, and to fix the first one-way bearing and the second one-way bearing to the second connecting hole by screws.

[0009] Preferably, the movable pan-tilt assembly includes a left-right movable pan-tilt assembly and an up-and-down movable pan-tilt assembly, the up-and-down movable pan-tilt assembly is connected to the top of the left-and-right movable pan-tilt assembly, and the self-centering clamping vise is connected to the top of the up-and-down movable pan-tilt assembly through a connecting plate.

[0010] Preferably, the left-right movable pan-tilt assembly includes left-right pan-tilt adjustment knobs and left-right pan-tilt position fixing knobs.

[0011] Preferably, the up and down moving pan-tilt assembly includes up and down pan-tilt adjustment knobs and up and down pan-tilt position fixing knobs.

[0012] Preferably, a pan-tilt slide is connected below the mobile pan-tilt assembly, a hysteresis load slide is connected below the hysteresis load assembly, a slide groove is provided on the bottom plate, and the pan-tilt slide and the hysteresis load slide are respectively slidably connected to the slide groove.

[0013] Preferably, the self-centering clamping vise comprises two oppositely arranged V-blocks, the opposite inner sides of the two V-blocks are provided with symmetrical V-grooves, and the inner sides of the V-grooves are covered with soft glue.

[0014] Preferably, the self-centering clamping vise comprises a screw knob, the screw knob is connected to two connecting blocks, and the two V-blocks are respectively connected to the two connecting blocks.

[0015] Compared with the prior art, the motor load testing device of the utility model can realize the rapid clamping and disassembly of the motor during the load test. The design of the pan / tilt and the slide slot enables rapid adjustment in three dimensions. The double one-way bearings can realize quick disassembly and quick withdrawal without the need for additional actions, making the motor loading and unloading process easy to operate. The motor has a short usage time from clamping to the end of the load test and is easy to operate. It can be used for rapid load testing in the production process to control production quality.

Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional diagram of the motor load testing device of the utility model;

[0017] Figure 2 It is a top view of the motor load testing device of the utility model;

[0018] Figure 3 This is a first side view of the motor load testing device of the utility model;

[0019] Figure 4 It is a second side view of the motor load testing device of the utility model;

[0020] Figure 5 This is an axial cross-sectional view of the coupling of the motor load testing device of the utility model. [Specific implementation method]

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are limited to relative positions on the specified view rather than absolute positions.

[0023] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] See also Figures 1 to 5 The motor load testing device of the utility model includes a base plate 10, on which a mobile pan-tilt assembly 20 is arranged, and a self-centering clamping vise 30 is connected to the mobile pan-tilt assembly 20, and the self-centering clamping vise 30 is used to clamp the motor 80.

[0025] A hysteresis load assembly 60 is also disposed on the base plate 10 . The hysteresis load assembly 60 includes a hysteresis load main shaft 61 . The hysteresis load main shaft 61 is connected to a motor shaft 81 of a motor 80 via a coupling 70 .

[0026] The coupling 70 is provided with a first one-way bearing 90 and a second one-way bearing 91 . The motor shaft 81 passes through the first one-way bearing 90 and the second one-way bearing 91 . The first one-way bearing 90 and the second one-way bearing 91 are provided in opposite directions.

[0027] The coupling 70 is provided with a first connecting hole 71 and a second connecting hole 72 . The hysteresis load main shaft 61 is fixed in the first connecting hole 71 , and the first one-way bearing 90 and the second one-way bearing 91 are fixed in the second connecting hole 72 .

[0028] The first connecting hole 71 and the second connecting hole 72 are concentrically arranged to ensure that the hysteresis load main shaft 61 and the motor shaft 81 are consistent in concentricity.

[0029] The coupling 70 is provided with a fixing hole 73 on the side thereof, which is connected to the first connecting hole 71 and the second connecting hole 72 respectively, and is used to fix the hysteresis load main shaft 61 to the first connecting hole 71 by screws, and to fix the first one-way bearing 90 and the second one-way bearing 91 to the second connecting hole 72 by screws.

[0030] The effect of the one-way bearing is that the inner ring of the bearing can only rotate in one direction relative to the outer ring, and the motor shaft 81 can be inserted into the inner ring of the one-way bearing and can be pulled out along the axial direction. After being inserted into the one-way bearing, it can rotate in one direction. The two one-way bearings are installed in reverse, so that after the motor shaft 81 is inserted into the one-way bearing, the motor shaft 81 cannot rotate relative to the outer ring of the bearing. The outer ring of the one-way bearing is fixed to the hysteresis load main shaft 61 through the coupling 70. The motor shaft 81 rotates with the coupling 70 and the hysteresis load main shaft 61. When the motor 80 is powered on to rotate, the motor 80 has been loaded. After the hysteresis load component 60 is powered on, it can generate a torque. The power supply may be adjusted to control the torque of the hysteresis load. This torque prevents the motor 80 from rotating.

[0031] During the test, an oscilloscope, current clamp and other equipment may be used to check the data of the current waveform size of the motor 80 to determine whether the motor 80 is OK.

[0032] The movable pan-tilt assembly 20 includes a left-right movable pan-tilt assembly 22 and a vertical movable pan-tilt assembly 23 . The vertical movable pan-tilt assembly 23 is connected to the top of the left-right movable pan-tilt assembly 22 . The self-centering clamping vise 30 is connected to the top of the vertical movable pan-tilt assembly 23 via a connecting plate 40 .

[0033] The left-right movable pan-tilt assembly 22 can realize the left-right movement of the motor 80, and can quickly calibrate the concentricity of the motor shaft 81 under test and the hysteresis load main shaft 61 in the left-right direction, so that the motor rotor will not get stuck due to concentricity problems during the test. For the same model of motors in production, the left-right position only needs to be adjusted and fixed, and there is no need to adjust the position of a single motor.

[0034] The left-right movable pan-tilt assembly 22 includes a left-right pan-tilt adjustment knob 221 and a left-right pan-tilt position fixing knob 222 . The left-right pan-tilt adjustment knob 221 is used to adjust the left-right position of the left-right movable pan-tilt assembly 22 , and the left-right pan-tilt position fixing knob 222 is used to fix the left-right position of the left-right movable pan-tilt assembly 22 .

[0035] The up-and-down pan-tilt assembly 23 can realize the up-and-down movement of the motor 80, and can quickly calibrate the concentricity of the motor shaft 81 under test with the hysteresis load main shaft 61 in the up-and-down direction. For the same model of motors in production, the up-and-down position only needs to be adjusted and fixed, and there is no need to adjust the position of a single motor.

[0036] The up and down moving pan-tilt assembly 23 includes an up and down pan-tilt adjustment knob 231 and an up and down pan-tilt position fixing knob 232. The up and down pan-tilt adjustment knob 231 is used to adjust the up and down position of the up and down moving pan-tilt assembly 23, and the up and down pan-tilt position fixing knob 232 is used to fix the up and down position of the up and down moving pan-tilt assembly 23.

[0037] A pan-tilt slide 21 is connected to the bottom of the mobile pan-tilt assembly 20, a hysteresis load slide 50 is connected to the bottom of the hysteresis load assembly 60, a slide groove 11 is provided on the bottom plate 10, and the pan-tilt slide 21 and the hysteresis load slide 50 are slidably connected to the slide groove 11 respectively.

[0038] The pan / tilt slide plate 21 and the hysteresis load slide plate 50 of the present invention can slide in the slide groove 11, so as to realize the movement of the motor under test and the hysteresis load along the length direction on the bottom plate 10. For the same model of motors in production, the length direction position only needs to be adjusted and fixed, and there is no need to adjust the position for a single motor.

[0039] The slide groove 11 is provided with rows of pan-tilt slide fixing holes 12, and the slide groove 11 is provided with strip-shaped hysteresis load slide fixing holes 13. When the positions of the pan-tilt slide 21 and the hysteresis load slide 50 are adjusted, they are fixed to the pan-tilt slide fixing holes 12 and the hysteresis load slide fixing holes 13 by screws respectively.

[0040] The self-centering clamping vise 30 includes two V-blocks 31 arranged opposite to each other. Symmetrical V-grooves 311 are arranged on the opposite inner sides of the two V-blocks 31. Soft glue can be attached to the inner sides of the V-grooves 311 to prevent the motor 80 from being clamped and to have a certain centering effect.

[0041] The self-centering clamping vise 30 includes a screw knob 33, and the screw knob 33 is connected to two connecting blocks 32, and the two V blocks 31 are respectively connected to the two connecting blocks 32. By turning the screw knob 33, the two V blocks 31 can be simultaneously moved toward the middle to clamp the motor 80, or simultaneously moved away to loosen the motor 80. This design effect avoids back-and-forth interference with the left and right pan / tilt adjustment, and repeatedly adjusts the left and right directions. During the test, you only need to loosen the screws and install the motor 80 to clamp and test.

[0042] Compared with the prior art, the motor load testing device of the utility model has a simple structure and is easy to use. It solves the problem of quick clamping during motor load detection and can be applied to large-scale load detection in the production process. The motor can be quickly clamped and tested, and can effectively detect potential risks or defective motors.

[0043] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.

Claims

1. Motor load testing device, characterized in that, It comprises a bottom plate, on which a mobile platform assembly is arranged, on which a self-centering clamping vise is connected, and the self-centering clamping vise is used to clamp the motor; A hysteresis load assembly is arranged on the bottom plate, and the hysteresis load assembly includes a hysteresis load main shaft, and the hysteresis load main shaft is connected to the motor shaft of the motor through a coupling; The coupling is provided with a first one-way bearing and a second one-way bearing, the motor shaft passes through the first one-way bearing and the second one-way bearing, and the first one-way bearing and the second one-way bearing are arranged in opposite directions.

2. The motor load testing device according to claim 1, characterized in that: A first connecting hole and a second connecting hole are provided in the coupling, the hysteresis load main shaft is fixed in the first connecting hole, and the first one-way bearing and the second one-way bearing are fixed in the second connecting hole.

3. The motor load testing device according to claim 2, characterized in that: The first connecting hole and the second connecting hole are arranged concentrically.

4. The motor load testing device according to claim 2, characterized in that: The coupling side is provided with fixing holes, which are respectively connected to the first connecting hole and the second connecting hole, and are used to fix the hysteresis load main shaft to the first connecting hole by screws, and to fix the first one-way bearing and the second one-way bearing to the second connecting hole by screws.

5. The motor load testing device according to claim 1, characterized in that: The movable platform assembly comprises a left-right movable platform assembly and an up-and-down movable platform assembly, the up-and-down movable platform assembly is connected to the top of the left-and-right movable platform assembly, and the self-centering clamping vise is connected to the top of the up-and-down movable platform assembly through a connecting plate.

6. The motor load testing device according to claim 5, characterized in that: The left and right moving pan-tilt assembly includes left and right pan-tilt adjustment knobs and left and right pan-tilt position fixing knobs.

7. The motor load testing device according to claim 5, characterized in that: The up and down moving pan-tilt assembly includes up and down pan-tilt adjustment knobs and up and down pan-tilt position fixing knobs.

8. The motor load testing device according to claim 1, characterized in that: A pan head slide plate is connected to the bottom of the mobile pan head assembly, a hysteresis load slide plate is connected to the bottom of the hysteresis load assembly, a slide groove is arranged on the bottom plate, and the pan head slide plate and the hysteresis load slide plate are respectively slidably connected to the slide groove.

9. The motor load testing device according to claim 1, characterized in that: The self-centering clamping vise comprises two V-blocks arranged opposite to each other, the opposite inner sides of the two V-blocks are provided with symmetrical V-grooves, and the inner sides of the V-grooves are pasted with soft glue.

10. The motor load testing device according to claim 9, characterized in that: The self-centering clamping vise comprises a screw knob, the screw knob is connected with two connecting blocks, and the two V blocks are respectively connected to the two connecting blocks.

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