Full rolling movable teeth one tooth difference planetary reducer

Abstract

The invention discloses a planetary reducer with full rolling movable teeth and one tooth difference, comprising a rolling input mechanism and an eccentric ring output mechanism, wherein the input mechanism and the eccentric ring output mechanism are reduced in speed through a planetary transmission mechanism with one tooth difference. The invention combines a swing arm bearing and a tooth seat ring into one, wherein the input shaft drives the eccentric sleeve to rotate eccentrically and pushes the swing arm bearing without an outer ring, so that the movable teeth mesh with the inner arc tooth profile of the inner gear ring to cooperate in planetary motion, and the concentric bearing between the eccentric ring and the output shaft has the functions of decomposition, balance, deviation compensation of the planetary motion, and conversion of the eccentric motion into fixed axis rotation, wherein the outer ring of the concentric bearing carries high-speed revolution, and the inner ring carries low-speed rotation and the resultant force is the same as the eccentric distance, so that the output shaft generates a reduction transmission with low speed and large torque, and rolling replaces sliding, so that the transmission efficiency is higher, and there is no guide groove or pin hole on the eccentric ring entity, so that the strength of the entire structure is fully guaranteed to adapt to high-efficiency and high-power reducers.