探讨掘进机在井下工作过程中截割电机常见的几种故障,对引发每一故障的原因进行了细致的分析,并提出了有针对性的改进方案,提高了部件的可靠性,为今后电机设计提供参考。 This paper discusses several common faults of cutting motor during the downhole work, analyzes the causes of each fault in detail and puts forward the targeted improvement scheme to improve the reliability of the components. In the future, Design for reference.