Motor rotor fastening structure and high-rotating-speed motor

Abstract

The invention discloses a motor rotor fastening structure and a high-rotation-speed motor, and aims to solve the problem that the use performance of the motor is affected due to the fact that the air gap of a motor rotor in the prior art is relatively large and the magnetic density is reduced. The technical problem is solved through the following technical scheme that the motor rotor comprises a rotor lamination, a plurality of convex ribs are arranged on the outer side wall of the rotor lamination, the convex ribs are arranged in the axis direction of the rotor lamination, and clamping grooves are formed in the two sides of the convex ribs; the magnet is arranged on the outer side wall of the rotor lamination, and the two sides of the magnet are matched with the clamping grooves; the locking bodies are filled between the magnets and the convex ribs; the outer surface of the convex rib, the outer surface of the magnet and the outer surface of the clavicle body are on the same cylindrical surface. The overall strength of the motor rotor can be guaranteed, the motor rotor can adapt to a high-speed running state, meanwhile, an air gap formed after the motor rotor is matched with a motor stator is very small, and the magnetic density of a motor is guaranteed.

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