NARROW-CUT MACHINE FOR COAL EXTRACTION FROM STEEPLY INCLINED BED Russian patent published in 2004 - IPC

FIELD: coal producing industry.

SUBSTANCE: machine has traction-towing device, sprinkling device, two height-adjustable operational tools with horizontal axis of rotation, two swiveling arms and case in which two cutting unit reducers and electrical drive are installed. Machine case is arranged on guide beam and may reciprocate along thereof. Machine case is connected to guide beam by hydraulic jack. Traction-towing device is fixed to guide beam end. Operational tools are formed as augers with cutters. Auger nearest to traction-towing device is arranged on swiveling arm and provides cutter movement from ground to bed top in area of contact thereof with coal formation when machine follows traction rope. Rib of above auger is coiled in direction which provides broken coal pieces movement from guide beam. Outermost auger is arranged so that cutters move in opposite direction. Rib of outermost auger is coiled in direction which provides broken coal pieces displacement towards guide beam. Guide beam has raised floor, grab handle and fence.

EFFECT: increased efficiency due to guide beam provision.

6 dwg