我公司各生产的MG300系列是矿井煤炭开采的主要设备。但是,由于综采工作面采场煤层夹矸夹石厚度大,硬度高,截深增加,加之工作面坡度20°左右,使得采煤机在仰采时,牵引阻力大,行走困难,而目前所用的摆线马达寿命小,易损坏,造成采煤机故障率增加,影响生产。为解决上述的问题,笔者 MG300 series produced by our company is the main equipment of mine coal mining. However, due to the large thickness of coal gangue sandstone, the high hardness and the increase of cut-off depth, the slope of the working face is about 20 °, which makes the shearer have big traction resistance and difficulty in walking when the coal mining machine adopts sublevel mining. However, The cycloid motor used for life is small, easily damaged, resulting in increased failure rate shearer, affecting production. To solve the above problems, the author