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随着我国四化建设的发展,煤炭工业的机械化程度不断提高。目前,不少煤矿都使用了滚筒式采煤机组;也有不少地方煤矿因地制宜使用了各种型式的土采煤机组。但是,由于受煤层赋存条件的限制,各种地质条件的影响,以及循环方式的变更,需要变换滚筒的截深、直径等基本参数,这样就带来了重新制造滚筒的问题。再者,滚筒是割煤机落煤与装煤的主要机构,承载较大,尤
With the development of the four modernizations in our country, the degree of mechanization of the coal industry continues to increase. At present, many coal mines use drum-type coal-mining units; and many local mines use various types of coal-mining units according to local conditions. However, due to the restriction of the coalbed conditions, the influence of various geological conditions and the change of the circulation method, it is necessary to change the basic parameters such as the cut-off depth and diameter of the drum, which brings about the problem of remanufacturing the drum. Furthermore, the drum is the main mechanism of coal cutting and coal loading, carrying a larger, especially