Influence of Cycloidal Gear Linear Shape on Contact Equivalent Stress

Abstract

The robot arm makes noise during the operation, the reason that of the cycloid gear and the pin wheel are pre-compressed, a single part is extremely high demand of accuracy and assembly accuracy, and besides, that will produces some noise when the cycloidal gear line shape was slightly disturbances or has a chink in operation. This study is aimed at the core transmission part cycloidal gear of the high torque RV reducer (Rotate Vector Reducer) used in the general six-axis manipulator Jl-J3 shaft, Shape modification of gear profile. To proceed and design, even to using two-factor and the multi-level of equidistance modification, distance modification, moreover, using finite element analysis software LS-Dyna to calculate the effect of shape modification on effective stress such as tooth surface, the purpose is to make the tooth surface contact stress It is evenly distributed to increase the service life of the gear, and to explored that influence of the two factors on the tooth profile, after that optimum parameter numerical value.