High-speed magnetic suspension motor protection device and protection method

The invention belongs to the technical field of magnetic levitation motors, and particularly relates to a high-speed magnetic levitation motor protection device and method, the high-speed magnetic levitation motor protection device comprises a motor shaft, a bearing, a plurality of clamping devices, a magnetic device and a plurality of connecting rod mechanisms, the clamping devices are installed on the inner side of the bearing, and the motor shaft is installed on the inner sides of the clamping devices; the multiple connecting rod mechanisms are hinged into the clamping device, and arc-shaped grooves matched with the periphery of the motor shaft are formed in the sides, close to the motor shaft, of the multiple connecting rod mechanisms. The magnetic device is mounted outside the bearing; the magnetic device is matched with the plurality of clamping devices and is externally connected with a motor power supply; compared with the prior art, the motor shaft clamping device has the advantages that the clamping