Magnetic suspension bearing system, protection device and detection control method of protection device

• Main Authors: SUN JIANDONG, HU DAOFU, HE YONGLING, ZHAO KEJIE
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2019
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a magnetic suspension bearing system protection device and a detection control method of the protection device. In an existing magnetic suspension bearing, a rotor can deflectpossibly, a protection bearing is usually additionally arranged on the periphery of the rotor for protection, and the protection bearing can be damaged when the rotor deviates too much. According to the protection device, the protection bearing is not used as first-stage protection, a first-stage protection device is additionally arranged in front of the protection bearing, the protection device has soft and self-lubricating characteristics, and a ball bearing is used as second-stage protection. Compared with the material structure of the rotor, the first-stage protection device is soft and has a self-lubricating property, and the rotor cannot be damaged even if the rotor collides with the protection device. According to the protection device, the special protection device can be used as first-stage protection to