Efficiency of non-pin wheel cycloid reducer concept

Abstract

Defining new concepts is of vital importance for the further development of cycloid reducers, which are increasingly used in industry. In order to reduce shock loads, backslash, noise, vibrations, and production costs, a new, non-pin wheel concept was developed. However, the use of stationary circular segments instead of rotating ring gear rollers significantly affects the amount of friction. Therefore, this paper aims to analyze the power losses in the contacts of elements of the non-pin wheel cycloid reducer concept. The test was made for different sizes of cycloid reducers, and one of the most acceptable models proposed by Malhotra was used to determine the non-pin wheel concept efficiency. For the calculation of the forces occurring on the basic components, the assumption that it is an ideal meshing case was used. The simulation results show that the greatest power losses occur precisely in the contact between the teeth of the cycloid disc and the stationary circular segments, where sliding friction is dominant.