FEED MECHANISM FOR CONTINUOUS MINER Russian patent published in 1997 - IPC

FIELD: mining machinery and equipment. SUBSTANCE: this gives higher number of feed speeds. Feed mechanism has electric motor, speed reducer, and gearbox with parallel shafts: input, output, and at least one intermediate shaft. Stationary mounted on input shaft are gears, and mounted on each of intermediate and output shafts are controlled friction clutches according to number of gears. Corresponding gear wheels of clutches of intermediate shafts and output shaft are kinematically connected with corresponding own gear. Intermediate shafts are kinematically connected with output shaft of gearbox directly or through kinematic link between them. Distance of intermediate shafts and output shaft from input shaft can be either various or equal. EFFECT: high efficiency. 1 cl, 5 dwg