Coal mining machine (coalwinningmachine) is one of the main equipments of comprehensive mining equipment. Coal mining machine is evolved from the development of coal interceptor. Coal mining machine is a set of mechanical, electrical and hydraulic as one of the large complex system, the working environment is harsh, if there is a failure will lead to the interruption of the entire coal mining work, resulting in huge economic losses.
Coal mining machine is one of the important equipments to realize the mechanization and modernization of coal mine production. Mechanized coal mining can reduce physical labor, improve safety, and achieve the purpose of high output and low consumption.