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分析了４１０电机刷架系统故障的原因．介绍了刷握的改进措施，采用压缩弹簧结构取代原拉伸弹簧结构，试验与计算结果接近。这一改进的全面推广应用，将使刷架系统的故障率大大下降．
The reason of failure of 410 motor brush holder system was analyzed. The improvement measures of the brush holder are introduced. The structure of the compression spring is replaced by the structure of the original tension spring, and the test and calculation results are close. The comprehensive application of this improvement will greatly reduce the failure rate of the brush holder system.