CN203308913U

CN203308913U - Radial-axial magnetic levitation bearing for replacing angular contact

Info

Publication number: CN203308913U
Application number: CN2012206879432U
Authority: CN
Inventors: 张玉宝; 李德亮
Original assignee: Luoyang Run Huan Motor Bearings Co Ltd
Current assignee: LUOYANG RUNHUAN BEARING TECHNOLOGY CO., LTD.
Priority date: 2012-12-13
Filing date: 2012-12-13
Publication date: 2013-11-27
Anticipated expiration: 2022-12-13

Abstract

The utility model discloses a radial-axial magnetic levitation bearing for replacing angular contact. The radial and axial magnetic levitation bearing is formed by two permanent magnet assemblies (13, 14 and 15, 16) with L-shaped radial cross sections, formed by tightly sleeving two magnetic rings with different axial lengths, the permanent magnet assemblies are respectively fixed inside non-magnetic-conduction bearing end covers (17, 18) with one L-shaped radial cross sections to form combining components with always L-shaped integral radial cross sections, the combining components are inserted inside a bearing outer ring (19) to form an outer ring combining part with a radial opening annular groove in the middle position, a radial-axial air gap inside the outer ring combining part and an annular permanent magnet (21) fixed on the middle position of a bearing inner ring (20) form an inner combining part, an annular permanent magnet of the inner ring combining part adopts a magnetic ring (21) oriented and magnetized by inside and outside single-pole radiation, and the magnetic flux inside the magnetic ring is mutually consistent with the magnetic flux inside a magnetic ring with a smaller axial direction in each permanent magnet assembly.

Description

The axial magnetic suspension bearing in a kind of alternative angle contacting footpath

Technical field:

The utility model relates to magnetic suspension bearing, especially relates to the axial magnetic suspension bearing in permanent magnetism repulsion type footpath.，

Background technique:

Current a kind of possess simultaneously the axial stable suspersion ability in footpath and can realize that the monomer-type magnetic suspension bearing achievements of technology innovation of standardized production takes the lead in being proposed by China's invention circle, especially since 2011, the magnetic suspension bearing technological scheme of this type is among swift and violent increase always.

The model utility content:

The utility model is exactly that a kind of technological innovation that possesses simultaneously the axial stable suspersion ability in footpath and can realize the monomer-type magnetic suspension bearing of standardized production will be provided, and scheme is as follows:

The axial magnetic suspension bearing in a kind of alternative angle contacting footpath, it is by the different magnet ring of two axial lengths and the magnet ring rear permanent-magnet component that parting face radially is shown as " L " shape that forms that closely connects together, described permanent-magnet component be separately fixed at one radially the parting face for the non-magnetic bearing (ball) cover of " L " shape is inner, form the combiner that the overall radial cutting plane still is shown as " L " shape; Described combiner is plugged in the inside of bearing outer ring jointly, is formed on neutral position the combination section, outer ring with the radial port annular groove; The axial air gap in footpath of this inside, combination section, outer ring and the annular permanent magnet be fixed on the bearing inner race intermediate portion form the inner ring combination section; Between described Internal and external cycle combination section, become the side direction structure that convex-concave is intersected; In the middle of described permanent-magnet component, the magnet ring that axial length is larger adopts axial charging, and the magnet ring that axial length is less adopts by the radially oriented magnet ring magnetized of inside and outside monopole type; Between the relative magnetic pole pole-face of low coverage between two combiners in the middle of combination section, described outer ring, isolated by air gap or non-magnet material; The annular permanent magnet of described inner ring combination section adopts by the radially oriented magnet ring magnetized of inside and outside monopole type, and makes the interior flux of the magnet ring that the central axial length of its interior flux direction and described permanent-magnet component is less consistent with each other.

The accompanying drawing explanation:

Fig. 1 is the cut-away view of the axial magnetic suspension bearing in the utility model permanent magnetism repulsion type footpath.

Wherein: (13,14,15 and 16) magnet ring, (13 and 14,15 and 16) permanent-magnet component, (17,18) non-magnetic bearing (ball) cover, (19) bearing outer ring, (20) bearing inner race, (21) annular permanent magnet.

Embodiment:

Below with concrete mode of execution, the axial magnetic suspension bearing in the utility model footpath is further described in detail:

Shown in accompanying drawing, the axial magnetic suspension bearing in this footpath, be by two by two different magnet rings of axial length closely connect together rear form permanent-

magnet component

13,14 and 15,16 that parting face radially is shown as " L " shape be separately fixed at one radially the overall radial cutting plane that forms for non-magnetic bearing (ball)

cover

17,18 inside of " L " shape of the parting face combiner that still is shown as " L " shape jointly be plugged in behind the inside of bearing outer ring 19 combination section, outer ring be formed on neutral position with the radial port annular groove; And this combination section, outer ring is formed by the inner ring combination section that the axial air gap in inner footpath and annular permanent magnet (21) be fixed on bearing inner race 20 intermediate portions form; And make between described Internal and external cycle combination section to become the side direction structure that convex-concave is intersected; In the middle of described permanent-

magnet component

13,14 and 15,16, the magnet ring that axial length is larger adopts axial charging, and the magnet ring that axial length is less adopts by the radially oriented magnet ring magnetized of inside and outside monopole type; Between the relative magnetic pole pole-face of low coverage between two combiners in the middle of combination section, described outer ring, isolated by air gap or non-magnet material; The annular permanent magnet of described inner ring combination section adopts by the radially oriented magnet ring magnetized 21 of inside and outside monopole type, and makes the interior flux of the magnet ring that the central axial length of its interior flux direction and described permanent-magnet component is less consistent with each other.

Claims

1. axial magnetic suspension bearing in alternative angle contacting footpath, it is by two different magnet rings of axial length rear permanent-magnet component that parting face radially is shown as " L " shape that forms that closely connects together, described permanent-magnet component be separately fixed at one radially the parting face for the non-magnetic bearing (ball) cover (17,18) of " L " shape is inner, form the combiner that the overall radial cutting plane still is shown as " L " shape; Described combiner is plugged in the inside of bearing outer ring (19) jointly, is formed on neutral position the combination section, outer ring with the radial port annular groove; The axial air gap in footpath of this inside, combination section, outer ring and the annular permanent magnet (21) be fixed on bearing inner race (20) intermediate portion form the inner ring combination section; Between described Internal and external cycle combination section, become the side direction structure that convex-concave is intersected; In the middle of described permanent-magnet component, the magnet ring that axial length is larger adopts axial charging, and the magnet ring that axial length is less adopts by the radially oriented magnet ring magnetized of inside and outside monopole type; Between the relative magnetic pole pole-face of low coverage between two combiners in the middle of combination section, described outer ring, isolated by air gap or non-magnet material; The annular permanent magnet of described inner ring combination section adopts by the radially oriented magnet ring magnetized of inside and outside monopole type (21), and makes the interior flux of the magnet ring that the central axial length of its interior flux direction and described permanent-magnet component is less consistent with each other.