Passive type permanent magnet repulsion type magnetic bearing structure

The invention discloses a passive type permanent magnet repulsion type magnetic bearing structure. The passive type permanent magnet repulsion type magnetic bearing structure comprises a rotor and a stator. A plurality of first rotor grooves are formed in the outer wall of the front half portion of the rotor. First rotor magnetism isolating sheets and first rotor permanent magnets are arranged inthe first rotor grooves. A plurality of second rotor grooves are formed in the outer wall of the rear half portion of the rotor. Second rotor magnetism isolating sheets and second rotor permanent magnets are arranged in the second rotor grooves. The stator sleeves the rotor. A gap is formed between the stator and the rotor. A first stator groove is formed in the upper inner end wall of the stator.A first stator magnetism isolating sheet and a first stator permanent magnet are arranged in the first stator groove. Second stator grooves are formed in the left inner end wall, right inner end walland lower inner end wall o