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将牵引电动机换向器损伤的原因分为两类 :一类为电灼伤 ;另一类为机械拉伤。分析了最常见的刷握压指弹簧折断的原因 ,指出了其后果 ,并提出了几种改进方案。
The traction motor commutator is divided into two types of injury: one for electric burns; the other for mechanical strain. The causes of the most common breakage of the pressure finger of the brush holder are analyzed. The consequences are pointed out and several improvements are proposed.