对于采煤机的维修,我国企业目前仍多采用事后维修和定期维修两种方式。前者不仅影响生产,而且需要大量库存备件;后者则往往出现维修不足或维修过剩,造成人力、物力的浪费和设备寿命的缩短。而采用预知性维修方法,既可以保证采煤机安全运行,延长设备寿命,充分发挥设备潜能,也可以减少库存备件, For the maintenance of shearer, our country enterprises are still using more after-service and regular maintenance of two ways. The former not only affects the production but also requires a large inventory of spare parts. The latter often has under-repaired or over-repaired, resulting in the waste of human and material resources and the shortening of equipment life. The use of predictive maintenance methods, not only can guarantee the safe operation of shearer, extend equipment life, give full play to the potential of equipment, can also reduce inventory of spare parts,