REDUCTION GEAR

摘要

FIELD: obtaining four ratios at different senses of rotation of output shaft with input shaft rotating in one direction. SUBSTANCE: reduction gear includes two coaxial differential wave gear trains linked kinematically; each gear train includes wave generator, flexible wheel and two rigid gear wheels. Wave generators of both gear trains are connected with input shaft. One rigid wheel of first differential wave gear train is immovably connected with housing; other rigid wheel is connected with rigid wheel of other differential wave gear train whose second rigid wheel is immovably connected with output shaft. EFFECT: enhanced reliability. 1 dwg øøø1