CHANGE-TEETH GEAR Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: change teeth are provided with projections at their roots and are mounted in slots of cage secured on disk. Inner surface of cage is provided with chamfer on side of one of faces. Change teeth are rigidly secured on disk by means of hub connected with disk by means of screws, nuts and cotter pins. Taper outer surface of hub is engageable with chamfer of cage and projections of teeth. Taper shape of outer surface of hub makes it possible to retighten teeth in case of their loosening. EFFECT: enhanced reliability. 7 dwg