CHAIN CONVEYOR DRIVE Russian patent published in 1995 - IPC

FIELD: mining industry. SUBSTANCE: chain conveyor drive has reduction gears with slotted couplings fitted on output shafts with sprocket placed in between. Sprocket is secured on intermediate shaft with flats on both ends, fixing members and bolts. Ends of intermediate shaft and inner surface of couplings are inclined. Angle of inclination of mated surfaces is less than angle of friction between surface. Intermediate shaft has through holes whose axes are located in planes passing through centers of spheres square to axis of intermediate shaft, and clearances between bolts connecting intermediate shaft with couplings and walls of holes exceed clearances set for size of bolt by value found from formula given in description of invention. EFFECT: enlarged operating capabilities.