重庆地铁6号线列车拖车接地轴端轴箱温度异常升高故障的分析

Analysis of Abnormal Temperature Increase Failure of Grounding Axle End Box for Train Trailer on Chongqing Metro Line 6

分析重庆地铁6号线列车拖车接地轴端轴箱温升异常故障,分别从接地轴端的作用、接地炭刷异常磨耗、接地电流大小、列车接地回流电路各方面进行深入分析,并进行接地回流电路试改,整改后验证效果良好。

Analysis of abnormal temperature rise failure of grounding axle end of train trailer on Chongqing Metro Line 6,This paper analyzes the function of grounding shaft end,the abnormal wear of grounding carbon brush,the size of grounding current,and the train grounding reflux circuit.Finally,exploratory modification is carried out from ground reflux circuit.