High-efficiency permanent-magnet coupling transmission device

The invention discloses a high-efficiency permanent-magnet coupling transmission device, and the device comprises a conductor rotor, a permanent-magnet rotor, and a conductor rotor/permanent-magnet rotor spacing adjustment mechanism. The permanent-magnet rotor comprises permanent magnet rings and a yoke. There are a plurality of groups of permanent magnet rings, and the radial sections of the permanent magnet rings are circular, and are concentric. The adjacent permanent magnet rings form a first cavity therebetween, and a magnetic force line passes through interior of the first cavity. Each permanent magnet ring is connected to one surface of the disc-shaped yoke. The yoke is fixedly connected to a transmission shaft, and an axis of the transmission shaft passes through the center of the permanent magnet rings. The transmission shaft is connected with a transmission bearing. The conductor rotor and the permanent-magnet rotor are opposite to each other, and a drive shaft and the transmission shaft share one a