CN101625013A - Magnetic suspension bearing with conical suspended ring - Google Patents
Magnetic suspension bearing with conical suspended ring Download PDFInfo
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- CN101625013A CN101625013A CN200810130385A CN200810130385A CN101625013A CN 101625013 A CN101625013 A CN 101625013A CN 200810130385 A CN200810130385 A CN 200810130385A CN 200810130385 A CN200810130385 A CN 200810130385A CN 101625013 A CN101625013 A CN 101625013A
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- bearing
- plane
- conical
- ring
- suspension bearing
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Abstract
The invention relates to a magnetic suspension bearing with a conical suspended ring. The bearing uses two groups of magnetic block groups of which the magnetizing directions are vertical to conical surfaces of the suspended ring to extrude the suspended ring of which the both ends are provided with the conical surfaces so as to realize the axial and radial suspension of the suspended ring and form the magnetic suspension bearing.
Description
Affiliated technical field
The present invention relates to a kind of magnetic suspension bearing with conical suspended ring, this bearing is the both sides at a tapered collar, two groups of magnetic patch parallel with the suspended ring conical surface are installed, the magnetizing direction of magnetic patch vertically with magnet ring axis (also can perpendicular to magnet ring inclined-plane or relative) perpendicular to the inclined-plane.Make tapered collar be subjected to the axial-radial magnetic suspension force, taper magnet ring is suspended, become magnetic suspension bearing.Belong to the magnetic suspension field.
Background technique
At present, the permanent-magnet suspension bearing that does not also have appearance really to suspend on the market, electromagnetic suspension bearing is used for the restriction of its inner self power generation system, so rotating speed can't reach more than 100,000 rev/mins, the conventional rolling bearing rotating speed is low excessively, is easy to damage, and can't satisfy the requirement of high rotating speed equipment.
Summary of the invention
The technological scheme that the present invention will solve is: at the defective of traditional electrical magnetic suspension bearing and the existence of rolling bearing technology, design a kind of permanent-magnet suspension bearing that can carry big load and adapt to high speed rotating.
In order to address the above problem, magnetic suspension bearing with conical suspended ring of the present invention comprises that conical suspended ring and two ends are used for the suspended ring tapered slope is pushed, the magnetic patch group that compressive plane is parallel with the tapered collar inclined-plane.This moment, magnetic patch group inclined-plane pushed the conical surface of tapered collar.Because the same polar effect of near-end, the proximal part of tapered collar is identical with magnetic fidle of end, so when suspended ring conical surface magnetic field is subjected to the extruding of magnetic patch group inclined-plane, produce axial and radial suspension force, rotating shaft is suspended.
Through overtesting, we know that the ring outside of extreme face of common axial charging magnet ring N and the extreme face of S all presents the polarity identical with end face with the inboard proximal part of ring, and continuous state ringwise, the height in each polar ring shape magnetic field is about 1/2nd of magnet ring height, and we are called near-end homopolarity phenomenon.We have just obtained a radial-sealing toroidal magnetic field like this, and we are processed into cone structure with magnet ring, as long as face area is greater than half of processed front-end face area, still there is near-end homopolarity phenomenon in its taper oblique angle face.
This moment, we pushed conical surface with the radial magnetizing magnetic patch, can obtain lateral extrusion power and axial compression power simultaneously.
According to test, find the magnetic intensity maximum at outstanding position in the Nd-Fe-B permanent magnet.The magnetic intensity at all the other positions obviously a little less than.We are called outstanding effect.This moment, outstanding effect also appearred in the end face of tapered collar.
This bearing can only whole use, and can not bar structure splits to come to be installed on other equipment to use.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Figure one is the sectional view of tapered collar of the present invention at the intermediate magnetic suspension bearing;
Figure two is the sectional view of tapered collar of the present invention at the both sides magnetic suspension bearing;
Figure three is the sectional view of semi-magnetic suspension bearing of the present invention.
Embodiment
As shown in Figure 1, conical suspended ring 3 is positioned at the centre of bearing, and main shaft 1 is fixed together with suspended ring 3, and two conical surfaces of tapered collar are outside.Two groups of inclined-plane extruding magnetic patch groups 2 are fixed in the overcoat 4, form two horn mouths that symmetry is inside.The magnetic patch inclined-plane is parallel with the magnet ring inclined-plane.During bearing working, the conical surface of suspended ring 3 in the middle of the horn mouth inclined-plane extruding that both sides magnetic patch group 2 produces, this moment, suspended ring 3 was subjected to radial and axial extruding force simultaneously.Tapered collar is just suspended.
Fig. 2 is that tapered collar of the present invention is at the both sides magnetic suspension bearing.Wherein the conical suspended magnet ring 2 on both sides is installed in the rotating shaft 1, and two groups of inclined-plane extruding magnetic patch groups 3 are installed on the bearing housing 4, and magnetic patch extruding inclined-plane is parallel with the tapered collar inclined-plane.Working principle and figure one are identical.
Fig. 3 is a semi-magnetic suspension bearing of the present invention.Under vertical state, inclined-plane that one of them horn mouth makes progress extruding magnetic patch group 2 is fixed on the shell, and a conical suspended magnet ring 2 is installed in the rotating shaft 3, and rotating shaft 3 radially is fixed on the bearing housing by two mechanical bearings 4 up and down, but can endwisely slip.Bearing is in when work, and the thrust load that rotating shaft 3 is subjected to just can be suspended by the extruding force that the inclined-plane pushes 2 generations of 2 pairs of tapered collars of magnetic patch group.But radially support by mechanical bearing.So just formed the semi-magnetic suspension bearing.
Except that above embodiment, the present invention also has other mode of executions.All employings are equal to the technological scheme of replacement, equivalent deformation formation, all drop in protection scope of the present invention.
Claims (6)
1. magnetic suspension bearing with conical suspended ring, it is characterized in that: conical suspended ring 3 is positioned at the centre of bearing, and main shaft 1 is fixed together with suspended ring 3, and the both sides tapered slope is outside.Two groups of inclined-plane extruding magnetic patch groups 2 are fixed in the overcoat 4, form two horn mouths that symmetry is inside.The magnetic patch inclined-plane is parallel with the magnet ring inclined-plane.During bearing working, the conical surface of suspended ring 3 in the middle of the loudspeaker inclined-plane extruding that both sides magnetic patch group 2 produces, this moment, suspended ring 3 was subjected to radial and axial extruding force simultaneously.Tapered collar is just suspended.
2. magnetic suspension bearing with conical suspended ring according to claim 1 is characterized in that: two groups of inclined-plane extruding magnetic patch groups can be installed in the middle of the bearing.This moment, magnet ring was installed in the both sides of bearing.
3. magnetic suspension bearing with conical suspended ring according to claim 1 is characterized in that: under vertical state, only with one group of inclined-plane extruding magnetic patch extruding one side magnet ring conical surface, just can form the semi-magnetic suspension bearing.
4. magnetic suspension bearing with conical suspended ring according to claim 1 is characterized in that: rotating part can be a magnet ring, also can be the magnetic patch group.
5. magnetic suspension bearing with conical suspended ring according to claim 1 is characterized in that: the magnetizing direction of inclined-plane extruding magnetic patch is not limit.Can be consistent with the inclined-plane, also can be inconsistent.
6. aforesaid right requires formed magnetic suspension bearing whole to use, and can not split comes is installed on other equipment and uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810130385A CN101625013A (en) | 2008-07-13 | 2008-07-13 | Magnetic suspension bearing with conical suspended ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810130385A CN101625013A (en) | 2008-07-13 | 2008-07-13 | Magnetic suspension bearing with conical suspended ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101625013A true CN101625013A (en) | 2010-01-13 |
Family
ID=41520958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810130385A Pending CN101625013A (en) | 2008-07-13 | 2008-07-13 | Magnetic suspension bearing with conical suspended ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101625013A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275991A (en) * | 2015-11-27 | 2016-01-27 | 俱子研 | Novel self-stabilization passive magnetic bearing for generator of power grid |
| CN107327488A (en) * | 2017-08-29 | 2017-11-07 | 南京磁谷科技有限公司 | A kind of mounting seat for being used to tilt magnetic pole in magnetic bearing |
| CN113523324A (en) * | 2021-09-15 | 2021-10-22 | 常州勇前机电科技有限公司 | Gap adjustable magnetic suspension electric spindle |
| WO2023155891A1 (en) * | 2022-02-17 | 2023-08-24 | 深磁科技(深圳)有限公司 | Magnetic levitation device |
-
2008
- 2008-07-13 CN CN200810130385A patent/CN101625013A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275991A (en) * | 2015-11-27 | 2016-01-27 | 俱子研 | Novel self-stabilization passive magnetic bearing for generator of power grid |
| CN105275991B (en) * | 2015-11-27 | 2018-10-16 | 呈磁科技股份有限公司 | A kind of novel self-stabilization passive magnetic bearing of grid generator |
| CN107327488A (en) * | 2017-08-29 | 2017-11-07 | 南京磁谷科技有限公司 | A kind of mounting seat for being used to tilt magnetic pole in magnetic bearing |
| CN113523324A (en) * | 2021-09-15 | 2021-10-22 | 常州勇前机电科技有限公司 | Gap adjustable magnetic suspension electric spindle |
| CN113523324B (en) * | 2021-09-15 | 2021-12-03 | 常州勇前机电科技有限公司 | Gap adjustable magnetic suspension electric spindle |
| WO2023155891A1 (en) * | 2022-02-17 | 2023-08-24 | 深磁科技(深圳)有限公司 | Magnetic levitation device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100113 |