Fulcrum-equipped frictionless radial permanent magnetic suspension bearing

Abstract

A radial permanent magnet floating bearing, comprising: a horizontal shaft (2), a support bearing (4), and a radial permanent magnet floating bearing (3); the permanent magnet floating bearing (3) comprises a stator pull-push magnet (31) disposed on a stator casing (1) via a magnetic substrate (322), and a rotor pull-push magnet (32) disposed on the horizontal shaft (2) correspondingly via an annular magnetic substrate (322), having a radial gap and forming an axial pull-push magnetic circuit with the stator pull-push magnet (31); the rotor pull-push magnet (32) consists of two or more annular permanent magnets axially and closely attached, with magnetic poles alternately arranged in the axial direction; the stator pull-push magnet (31) consists of two or more annular permanent magnets axially and closely attached, with magnetic poles alternately arranged in the axial direction, disposed over the horizontal panel where the axle center of the horizontal shaft (2) is located, and being symmetrical about the perpendicular bisection plane of the horizontal axis. The bearing has a simple structure and greatly reduces energy consumption, without wear or bearing maintenance.

Description

Technical field: [0001] The invention relates to a bearing, in particular to a radial permanent magnetic suspension bearing with a fulcrum. Background technique: [0002] The invention patent 01136634.6 "Magnetic suspension bearing" applied by the first inventor of this application in 2001 involves the use of permanent magnets to form a pull-push magnetic circuit to form a fulcrum-free magnetic suspension bearing, and the invention patent 200710099004. "Magnetic full suspension bearing and combined wind power photovoltaic power generation system" also uses permanent magnets to form a pull-push magnetic circuit to form a fulcrum-free magnetic suspension bearing. For radial bearings, the combined structure of the pull-push magnetic circuit used in patent No. 01136634.6 full-permanent magnetic full-suspension radial bearings is complex, and it is difficult to debug to achieve suspension. However, the existing technology usually adopts partial permanent magnetic suspension (non...

AI Technical Summary

Problems solved by technology

[0003] The invention solves the technical problem that the existing full permanent magnetic suspension radial bearing has a complex structure and is difficult to assemble, and the proportion of the permanent magnetic suspension bearing in the non-full permanent magnetic suspension radial bearing is not large, the supporting force is not large, and the volume and weight of the entire bearing are large. , providing a fulcrum radial permanent magnetic suspension bearing with a simple structure, easy production and assembly, a large proportion of the permanent magnetic suspension bearing, large support force, and frictionless

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