可调速异步磁力联轴器, 三维有限元, 瞬态分析, 转矩

A novel adjustable speed asynchronous disk magnetic coupling was proposed,of which conductor on driven plate adopted a deep slot teeth shape structure. While the length of air gap between drive and driven plate is changed, the strength of magnetic field is increased or reduced accordingly, then its run speed adjustment is available. It can be used in some high pulling torque and excess vibration of mechanical equipment to avoid vibration, or also realize the motor soft start when in load. Its configuration characteristics and main magnetic circuit characteristics were discussed herein and a deep slot asynchronous magnetic coupling with 9 pole-pairs and 16 slots was analyzed by three-dimensional FEM under static and transient state, the distribution of magnetic field and current were obtained. The performance parameters of the new coupling including torque, power loss and axial force were calculated, and their corresponding curves in the transient conditions were obtained.

adjustable speed asynchronous disk magnetic coupling, 3D-FEM(finite element method), transient analysis, torque