Asymmetric electromagnetic bearing

• Main Authors: YANG RUNLAN, WANG LIXIN, QIU FENGYI, ZHANG XIN
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• 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

An asymmetric electromagnetic bearing comprises a rotor and a stator, the stator is provided with a plurality of magnetic poles, the magnetic poles are divided into four groups and are sequentially distributed in a first quadrant, a second quadrant, a third quadrant and a fourth quadrant, the cross sectional areas of the magnetic poles in the first quadrant and the magnetic poles in the second quadrant are the same and are S, and the cross sectional areas of the magnetic poles in the third quadrant and the magnetic poles in the fourth quadrant are the same and are s, s is larger than s, each group of magnetic poles is wound with a coil, the number of turns of the coils wound on the magnetic poles in the first quadrant and the second quadrant is N, the number of turns of the coils wound on the magnetic poles in the third quadrant and the fourth quadrant is M, N is larger than M. The rotor is arranged among the four groups of magnetic poles, and the four groups of magnetic poles are combined to form the asymmet