电力机车车辆牵引电动机运行可靠性很大程度上取决于电刷-整流子环节的工作状态。在牵引电动机整流子电刷上除了刷握加压装置产生的静压力外,还有由电刷-整流子环节振动和整流子机械作用引起的各种动压力。自然,这就恶化了换向条件并使无火花工作范围缩小。因此,研究动力因素对电刷-整流子环节工作的影响以及它的抗震性,就成为提高 Electric locomotive traction motor running reliability depends largely on the brush - commutator part of the working condition. In traction motor commutator brush on the brushes in addition to the static pressure generated by the pressure device, there are brush-commutator vibration and commutator mechanical effects caused by a variety of dynamic pressure. Naturally, this worsens the commutation conditions and narrows the scope of non-sparking work. Therefore, the study of dynamic factors on the brush-commutator part of the work and its impact resistance, it has become