Multi-magnetic-circuit high-performance field modulation magnetic gear

The invention discloses a multi-magnetic-circuit high-performance field modulation magnetic gear which comprises a high-speed rotor, an inner magnetic adjusting ring, an outer magnetic adjusting ring and a low-speed rotor, a multi-magnetic-flux loop is formed in the axial direction and the transverse direction, the magnetic leakage and the magnetic saturation resisting effect can be effectively utilized, and the magnetic field modulation magnetic gear can be effectively applied by changing the topological structure of a permanent magnet, a rotor iron yoke and the magnetic adjusting rings. Based on a magnetic field modulation principle, a magnetizing mode of high-speed and low-speed rotor permanent magnets is matched, so that the rotor has an axial magnetic flux path and a transverse magnetic flux path at the same time, and the axial magnetizing permanent magnets and the radial magnetizing permanent magnets select different magnetic pole logarithm ratios; a fundamental wave generated by the number of pole pair