Axial fixing structure of permanent magnet motor rotor

The utility model discloses an axial fixing structure of a permanent magnet motor rotor. The axial fixing structure is characterized by comprising an end plate I, an end plate II, a rotor core, a fixing plate and a rotating shaft, the end plate I and the end plate II are coaxially arranged at the two ends of the rotor core, the fixing plate and the rotor core are coaxially arranged close to the end plate II, the end plate I, the end plate II, the rotor core and the fixing plate are connected into a whole through a plurality of locking screws and then sleeve a rotating shaft, and the end plate I is positioned through a shaft shoulder; the end plate II and the fixing plate are positioned through an annular key, the annular key comprises two semi-ring keys, and the two semi-ring keys are embedded in an annular key groove in the rotating shaft. According to the utility model, the structure is simple and light, in the rotor installation process, welding equipment or a drying oven required in the old technology is