永磁齿轮, 行星传动, 转矩；参数设计

A permanent magnetic epicyclic gear drive was presented, and its geometry and kinematics were analysed by applying the principles of epicyclic gear drive and electromagnetics integratively. The torque equations between the sun gear and the epicyclic gear and that between ring gear and epicyclic gear were deduced using equivalent current model. The calculation and analysis of driving torque was achieved. Changes of the driving torque along with the number of pole-pairs on magnetic gear, center distance, axial thickenss, radial thickenss were discussed. Based on the results analysed above, the parameters of this permanent magnetic epicyclic gear drive were selected rationally.