This paper has a discussion on the dissipated heat, vibration proof and maintenance of variable frequency speed regulating device in AC electrical haulage shearer, and puts forward some basis of design and methods of maintenance.

• 分析了变频调速装置在交流电牵引采煤机上使用时关于散热、抗震和维护的几个问题 ,并提出一些设计的依据和维护的方法。