Research on Three-Shaft Ring-Plate Permanent Magnetic Gear Variable Speed Transmission Device

In order to solve the existing complex output mechanism of cycloidal permanent magnet gear transmission device, this paper proposes a design scheme of Three-Shaft Ring-Plate Permanent Magnetic Gear (TRPMG) based on permanent magnet gear and ring plate transmission device. Using FEM analysis and control variable method, the relationship between parameters of each key component and the output torque of structure is studied and optimized by TRPMG simulation model. The results show that the parameters such as thickness of yoke iron, thickness of permanent magnet and length of air gap have a great influence on the output torque of structure under the same total volume, and the torque density can be improved effectively after optimization.