Motor service life testing tool

Abstract

The invention discloses a motor service life testing tool. The motor service life testing tool comprises a base for positioning a motor, a pressing mechanism which consists of a connecting rod and a tension spring and is used for pressing the motor on the upper surface of the base, and a detecting circuit is connected to the input and the input end of the motor and used for monitoring the rotating speed and working current of the motor on real time; the fixing end of the connecting rod can be rotatably fixed on the base; one end of the tension spring is fixed and while the other end of the tension spring is fixed on the connecting rod; the free end of the connecting rod faces the base to press the motor. According to the motor service life testing tool, the motor can be reliably fixed, and the rotating speed and the working current of the motor can be monitored on real time; the working performance of the motor can be accurately analyzed according to the detection data, so that the service life of the motor can be determined; in addition, the inaccurate test caused by noise interface or falling of a welding wire due to the vibration of a motor body during testing the service life of the motor can be effectively avoided.

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

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