In order to solve the lap problem between the bridge transfer machine and the belt conveyor in the underground coal mine excavation face and realize the rapid movement,the self-moving technology of the BS800 stepping self-moving tail was studied,and the structural composition,mechanism principle,hydraulic system and so on were analyzed.Through the application of BS800 stepping self-moving tail,the effectiveness and feasibility of this self-moving tail were verified,so as to meet the need of efficient production of coal mine working face.
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