Motor life test tooling

Abstract

The invention discloses a motor life testing tool, which comprises: a base for placing the motor; a pressing mechanism, including a connecting rod and a tension spring, for pressing the motor on the upper surface of the base; a detection circuit connected to the motor The input and output ends are used to monitor the speed and working current of the motor in real time; the fixed end of the connecting rod is rotatably fixed on the base, one end of the extension spring is fixed, and the other end of the extension spring is fixed on the On the connecting rod, have the free end of the connecting rod press the motor towards the base. The invention designs a motor life testing tool, which can reliably fix the motor, and monitor the speed and working current of the motor in real time, and can accurately analyze the working performance of the motor through the detection data, so as to judge the working life of the motor, and can Effectively avoid the inaccurate test caused by noise interference caused by non-motor body vibration or welding wire falling off during the motor life test.

Description

technical field [0001] The invention relates to performance testing of motors, in particular to tooling for life testing of motors. Background technique [0002] The most important parameter of the motor is the life of the motor. In actual use, the relatively vague fault judgment standard is that the motor will not produce noise after running for a certain period of time. Usually, workers only judge whether the motor exists by perceiving the vibration amplitude of the motor based on experience. Malfunction requires replacement. [0003] Usually, the main reason for the noise of the motor is that the gap between the bearing and the shaft becomes larger, which leads to an increase in the speed and noise, etc. Workers can detect such problems based on experience. However, the reason for the noise is not entirely due to the problem of the motor itself in the life test, it may also be the result of the motor body breaking away from the fixation during the vibration process, the ...

AI Technical Summary

Problems solved by technology

However, the reason for the noise is not entirely due to the problem of the motor itself in the life test, it may also be the result of the motor body breaking away from the fixation during the vibration process, the motor and the fixed structure resonate and collide with the noise, and various other reasons will also affect it. Workers' judgment on motor faults, however, this method of judging faults based on experience cannot detect minor faults and cannot predict the service life of the motor. Once a fault occurs, it can only be replaced immediately. Therefore, how to make an accurate estimate of the motor life Judgment is especially important

Images