Composite magnetism gathering type permanent magnet guide rail mechanism applicable to high-speed superconductivity magnetic suspension system

Abstract

The invention discloses a composite magnetism gathering type permanent magnet guide rail mechanism applicable to a high-speed superconductivity magnetic suspension system. The composite magnetism gathering type permanent magnet guide rail mechanism comprises a main magnetism gathering pole formed by a plurality of ferromagnetic materials, a permanent magnet contraposition combination formed by a plurality of permanent magnets, and a permanent magnet guide combination formed by a plurality of permanent magnets. The composite magnetism gathering type permanent magnet guide rail mechanism is characterized in that the main magnetism gathering pole can gather the main magnetic circuit or the main magnetic energy of the permanent magnet guide rail and diffuses towards the space, and the high magnetic conductivity is favorable for inhibiting longitudinal magnetic field gradient; the permanent magnet contraposition combination generates strong magnetic pressure by utilizing the mutual repulsion effect between the magnetic poles of each permanent magnet; and the permanent magnet guide combination has the effects of auxiliarily gathering magnetism and guiding the magnetic circuit, and guides and diffuses the magnetic energy of the permanent magnets to the upper surface of the guide rail and the above region by utilizing the magnetization directionality of the permanent magnets. The composite magnetism gathering type permanent magnet guide rail mechanism obviously improves the utilization ratio of the permanent magnet guide rail magnetic field on the basis of guaranteeing the requirement of the magnetic suspension system on the magnetic field intensity, effectively stabilizes the longitudinal magnetic field gradient caused by the errors or defects of the permanent magnets, and guarantees the safety and the stability of the high-temperature superconductivity magnetic suspension system during operation at high speed and ultrahigh speed.

Description

technical field [0001] The invention belongs to the high-temperature superconducting magnetic levitation technology, and relates to a compound magnetism-concentrating permanent magnet guide rail mechanism suitable for a high-speed superconducting magnetic levitation system. Background technique [0002] Compared with the electromagnetic levitation (EMS) and electric levitation (EDS) technologies based on electromagnetic attraction and electromagnetic induction repulsion respectively, the high-temperature superconducting magnetic levitation technology relies on the electromagnetic induction between the high-temperature superconducting bulk material and the external magnetic field excitation. The permanent current realizes stable self-suspension without active control, simple structure, and reliable principle. It has become one of the ideal choices for practical magnetic levitation technology. The field has broad application prospects, and its low energy consumption, high reli...

AI Technical Summary

Problems solved by technology

Under the current technical conditions, the lower surface of the permanent magnet guide rail needs to be connected with the basic bearing parts, so only the magnetic field energy on the upper surface can be used by high-temperature ultra-high block materials, and the overall magnetic energy utilization rate is low, resulting in redundant permanent magnet guide rail structure , increasing its cost

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