Patent ID: 9121479
Filing Date: 2015-09-01
Classification: F16H

Abstract:
1. A cycloidal pinwheel speed reducer, comprising: a first housing defining a gear portion at an inner wall thereof; a second housing defining an inner gear ring at an inner sidewall thereof; a mounting frame comprising a mounting portion received in the first housing, a first eccentric portion and a second eccentric portion, the first eccentric portion connected to the mounting portion, the second eccentric portion connected to the first eccentric portion and located at an axial side of the first eccentric portion away from the mounting portion; two cycloidal gears received in the second housing, each of the two cycloidal gears comprising an outer gear portion, the two cycloidal gears sleeved on the first eccentric portion and the second eccentric portion, respectively; a plurality of rollers sandwiched between the outer gear portions of the two cycloidal gears and the inner gear ring of the second housing; an output shaft connected to the two cycloidal gears, an axis of the output shaft overlapped with a center axis of the mounting portion; an input gear coaxially mounted on the mounting portion; a transmission gear received in the mounting portion, and meshing with the input gear and the gear portion of the first housing; and a first transmission shaft rotatably connecting the transmission gear to the mounting portion.