Dynamic contact finite element analysis of cycloidal wheel based on needle roller connection without cage

In this study, the cycloidal wheel of RV reducer is taken as the research object. Firstly, the contact stress and deformation among cycloidal wheel, crank and bearing are deduced by Hertz formula. Then, the simulation analysis of the transient structure under the specified working conditions is carried out with the help of ANSYS Workbench to analyze the contact stress and deformation of each part during the working process. By comparing the theoretical calculation and the simulation results, it is found that there is a good agreement between them. The research results show that the force and deformation of each component connected by needle roller bearings can be accurately reflected in the simulation analysis of cycloidal wheel motion using ANSYS Workbench. Therefore, the finite element analysis method provides an important method for the rational planning of stress distribution and reliability design of cycloidal wheel drive.