Cam speed reducer with small teeth difference

Abstract

The invention discloses a cam speed reducer with small teeth difference. The cam speed reducer is characterized in that two groups of cam speed reducing mechanisms with small teeth difference and the same shapes and sizes are arranged between an input shaft and an output shaft in parallel; in the cam speed reducing mechanism with small teeth difference, a rolling bearing is arranged on an eccentric bushing, a shock wave wheel is arranged on the rolling bearing, the periphery of the shock wave wheel is uniformly distributed with a group of shaft pins with rolling bushings, the outer ring of the shock wave wheel is provided with an inner cam ring, the number of the shaft pins is less one than the number of the cams in the inner cam ring; and in the two parallel groups of cam speed reducing mechanisms with small teeth difference, the eccentric bushings which are intersected with each other with a phase angle of 180 DEG are of an integral structure, and the eccentric bushings with the integral structure are fixedly connected with the input shaft. The cam speed reducer with small teeth difference, provided by the invention, can be set as one stage or multi-stage, and is compact in structure, large in reduction ratio, great in contact ratio, high in reliability and stability, good in process, small in volume, and particularly strong in shock resistance and vibration resistance.

Description

technical field [0001] The invention relates to a cam reducer with a small tooth difference, which belongs to a reduction transmission device with a small tooth difference. Background technique [0002] At present, the known reducers with relatively compact structure and large reduction ratio mainly include: worm reducer, planetary gear reducer, involute gear reducer with small tooth difference, hydraulic motor reducer, harmonic gear reducer and cycloidal pinwheel Reducer, the first few structures are more complex, have higher requirements for materials and processes, and the cost is also higher: the shaft pin span of the pin gear of the cycloidal pin gear reducer is large, the bending strength is low, and the impact resistance, anti-corrosion Vibration ability is weak. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the present invention provides a compact structure, large reduction ratio, large coincidence, high reliability and...

AI Technical Summary

Problems solved by technology

[0002] At present, the known reducers with relatively compact structure and large reduction ratio mainly include: worm reducer, planetary gear reducer, involute gear reducer with small tooth difference, hydraulic motor reducer, harmonic gear reducer and cycloidal pinwheel Reducer, the first few structures are more complex, have higher requirements for materials and processes, and the cost is also higher: the shaft pin span of the pin gear of the cycloidal pin gear reducer is large, the bending strength is low, and the impact resistance, anti-corrosion weak vibration

Images