Specific Sliding of Trochoidal Gearing Profile in the Gerotor Pumps

Abstract

The present paper considers the kinematic parameters of the trochoidal gearing in gerotor pumps. The equations for the rolling and sliding velocity at the contact point of the meshing gear profiles were first determined and then the equations which define specific sliding of the trochoidal profile were derived. After that, the conditions for the phenomenon of the singular points of the specific sliding distribution were analyzed. Based on the graphic interpretation of kinematic parameters of trochoidal gear pair profiles in contact, conclusions can be drawn about the influence of geometrical parameters on the sliding size, and accordingly on the wear intensity of the tooth profiles too.