Magnetic suspension motor without thrust collar

The invention discloses a magnetic suspension motor without a thrust collar. The magnetic suspension motor is mainly composed of three-degree-of-freedom integrated hybrid magnetic bearing, a protective bearing, radial and axial displacement sensors, an alloy steel rotor, a high-speed motor, a housing, a locking thread ring. The high-speed motor is located at the center and is successively followed by the radial displacement sensor, the three-degree-of-freedom integrated hybrid magnetic bearing, the protective bearings, and the axial sensor outwards. The entire system is sealed inside the housing. The magnetic suspension motor has high rotor critical speed, improves rotor safety margin, and is small in volume, light in weight, high in efficiency, high in reliability and high in power density. 本发明公开了种无推力盘磁悬浮电机，该磁悬浮电机主要由三自由度体化混合磁轴承，保护轴承，径向、轴向位移传感器，合金钢转子，高速电机，壳体，锁紧螺纹环等部件组成。高速电机处于中部，向外依次是径向位移传感器，三自由度体化混合磁轴承，保护轴承、轴向传感器等，整个系统密封在壳体内部。本发明具有转子临界转速高、提高转子安全裕度、体积小、质量轻、效率高、可靠性高、功率密度大等优点。