Gears with Intermediate Rolling Bodies: Elements of Theory and Classification

Abstract

The article investigates the mechanical transmission, in which the load is transmitted through the intermediate rolling bodies. Axes (centers of mass) of rolling bodies are not fixed on a common base and are able to move relatively to each other. The models of transmissions are given, in which race tracks are presented in the form of closed periodic curve lines (pivot profiles of cam surfaces); and the rolling elements are the points of intersection of these curves. The requirements of pivot profiles to ensure consistency of the instantaneous transmission ratio are established. The classification of this group of mechanisms is developed. As an example of the practical implementation of the results of theoretical studies, the design of the developed experimental prototype transmission of the spherical type is examined.