Coal mining process and apparatus for coal mining

摘要

Method of coal mining apparatus that includes coal planer (7) is carried out so that the coal planer (7) via a chain (5), the plow moves back and forth reversibly between the drive station and the deflection station. The deflection chain wheel (6) to prevent the occurrence of sag in the chain (5) plow (7) moves depending on the position of the coal plow (7) in the direction of movement of the coal planer (7). In the device for mining coal deflection chain wheel (6) mounted on the carriage (21) which are by the tensioning device (30) sliding in the direction of movement of the coal planer (7).