1.前言由于MT52型牵引电动机直接安装在转向架上,容易受到运行时的振动,因此,会产生电刷损坏、整流不良等故障。于是,在实验室对电刷振动测定的方法进行了研究,结合过去进行整流火花的测定方法对电刷振动和整流火花的相互关系进行了试验,同时还对电刷的温度进行了测定。 1. Introduction Since the MT52 traction motor is mounted directly on the bogie and is susceptible to vibration during operation, it can cause damage such as brush damage and poor rectification. Therefore, the method of brush vibration measurement in the laboratory was studied, and the correlation between brush vibration and rectification spark was tested in the past with the method of measuring the rectified spark. At the same time, the temperature of the brush was also measured.