Section of mining sliding support

摘要

A section of mining sliding support enables extract coal from the roof with two supports situated in tunnelled road. To a base frame is by means of drawing rods and hydraulic props connected a sliding bar, which is linked with the base frame, caving shield and frame beam. On the sliding bar is connected a sliding cantilevered bar with abutment. The base frame has on one side connected metal plate against spillage and on opposite side hydraulic operated cover of the conveyor. In the middle of the base frame is connected a move device. The caving shield consists of fixed and withdrawable part. On the one side of the caving shield is situated hydraulic operated hinged wing against spillage of coal. On the opposite side is situated hydraulic operated discharge wing. The sliding bar has on one side hydraulic operated sealing strip and on opposite side hydraulic operated swinging wing.