FLIGHT CONVEYOR TELESCOPIC DRIVE Russian patent published in 2004 - IPC

FIELD: mining industry. SUBSTANCE: invention relates to flight conveyors of breakage faces and it can be used in end and similar head drives or drives of flight reloaders operating in collieries. Invention is aimed at enlarging sphere of application of telescopic drive of conveyors operating in this seams, mainly, conveyors with chains centrally brought out of guides. Proposed telescopic drive of flight conveyor includes fixed movable frames installed on common plate, flight chain engaging with drive sprocket, movable frame travel-motion hydraulic cylinders, guide chute for idle strand of flight chain hinge secured in end face seats of fixed frame sides and arranged in direction of flight chain movement with possibility of longitudinal displacement relative to movable frame. Flight chain meshes with drive sprocket from at outlet of guide chute. EFFECT: simplified design, improved reliability, increased service life. 4 cl, 10 dwg