Loading of satellite bearing of planetary cycloid gear by forces acting in meshing

Abstract

The main feature of planetary cycloid gears is the multi-pair contact of the pin-rollers and teeth of the cycloidal disk. To establish liaisons in the gear, mathematical models of the satellite’s force interaction with pin-rollers are used. The dependences of the total forces in meshing, which occur under the action of a torque applied to the output shaft, from the gear parameters, clearances in gear and the relative position of gear elements are given. The results of calculations performed in Mathcad using the proposed model show how the forces change in the direction of the inter-axis line of gear with increasing clearances at a constant torque on the output shaft. This solution allows estimating the forces acting on the satellite bearings at the specified manufacturing accuracy at the design stage of the gear.