Design of the gearing special forms

Abstract

In this paper is analyzed the special forms of gearing generated by the different combination of the rolling and base circles of the kinematic pair in contact. Characteristic form of the gear tooth based profiles is trochoid. The advance of these profiles in relation to the standard involute profile is the convex-concave contact of the meshing profiles. To the aim of obtaining better characteristics of the special gearing is done the equidistant modification of the based profiles. It is also defined the geometrical constrains to the equidistant modification. Based on obtained analyzing are generated different gear pairs and given their application by some mechanical construction: rotary piston motors (Wankel engine), gerotor pumps and transmission of power (cyclo reductor), and these profiles can be used also for the other special applications.