CN208619522U - Permanent magnetism magnetic suspension bearing - Google Patents
Permanent magnetism magnetic suspension bearing Download PDFInfo
- Publication number
- CN208619522U CN208619522U CN201820647016.5U CN201820647016U CN208619522U CN 208619522 U CN208619522 U CN 208619522U CN 201820647016 U CN201820647016 U CN 201820647016U CN 208619522 U CN208619522 U CN 208619522U
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- China
- Prior art keywords
- magnetic
- stator
- pole
- magnetizer
- rotor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 230000005389 magnetism Effects 0.000 title claims abstract description 10
- 235000000396 iron Nutrition 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract description 7
- 230000004907 flux Effects 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model is mainly by the same pole opposing compression of two pieces of permanent magnetic irons to small distance, reduce original magnetic flux area, thus improve magnetic induction intensity, then it by one piece of special magnetizer of folder lining between two blocks of magnet, exhales the magnetic line of force with magnetizer and floats magnetic source as the magnetic of stator；Again using an oblong magnetic pole as rotor, and another short round magnetic pole of installation is squeezed in the opposite mode of homopolarity respectively at its both ends, to improve the magnetic induction intensity at the oblong magnetic pole both ends as rotor, and configures axial limiter.Using the permanent magnetism magnetic suspension bearing of the strengthened stator of magnetic force and rotor engagement composition, load-bearing capacity and radially, axially stability can be increased.
Description
Technical field
The utility model relates to technical field of bearings, specifically a kind of structure is simple, stability is strong full permanent-magnet magnetic
Suspension bearing.
Background technique
Magnetic suspension bearing be using the magneticaction that identical charges repel each other by rotor suspension in stator, make between rotor and stator
There is no Mechanical Contact.Therefore mechanical wear is not present, with low energy consumption, generate heat less, noise is small, the service life is long, is not necessarily to lubrication, oil-free
The advantages that pollution.Magnetic suspension bearing can be divided into active, passive type and combined type by suspended pattern.Active and combined magnetic
The magnetic field of suspension bearing is mainly provided by electromagnet, and system includes sensor, control circuit etc., and structure is complicated, operating cost is high.
Passive type magnetic suspension bearing uses permanent magnet to provide suspending power completely, has many advantages, such as that structure is simple, reliable for operation, the service life is long.
But the magnetic force of permanent magnetism magnetic suspension bearing is relatively low, when being acted on by larger radial force, can generate biggish radial deflection, shadow
The stability and running accuracy when using are rung, and load-bearing capacity is also limited by magnetic force.
Summary of the invention
The purpose of this utility model is that:
Magnetic induction intensity is also known as magnetic flux density, it indicate pass perpendicularly through unit area the magnetic line of force number.Magnetic flux is close
Degree reflects the density degree of the magnetic line of force or the power in magnetic field in quantity, and where the magnetic line of force is closeer, and where magnetic field is stronger.Cause
This, we can improve magnetic induction intensity in a manner of reducing magnetic flux area in the case where the magnetic line of force is constant.
Principles above is applied on the stator of bearing and rotor respectively, design the stator that can increase magnetic induction intensity and is turned
Son, the load-bearing capacity of Lai Zengjia magnetic suspension bearing and radial stability.
Purpose of the utility model is realized as follows:
In the present invention: the stator of magnetic suspension bearing part is achieved in that two pieces of rectangular stereo magnetic irons,
Add magnetic surface to add magnetic on biggish two sides, is on one side the pole S for the pole N another side.In a manner of homopolar-repulsion, N is extremely with respect to the pole N or S
It is extremely extremely adjacent to each other with respect to S, the mutual extrusion in the case where fighting repulsive force.The magnetic line of force quantity of two blocks of magnet will not at this time
Become, but the magnetic flux area between two blocks of magnet becomes smaller, therefore is equivalent to the magnetic line of force passed through in unit magnetic flux area and increases
, that is, so-called magnetic induction intensity strengthens.When two blocks of magnet are sufficiently close together, because the effect of repulsive force can be very unstable
It is fixed, therefore one piece of special magnetizer of folder lining between two blocks of magnet, a magnetic group is formed, special magnetizer is vertical for rectangular slab-like
Body, three sides are concordant with rectangular stereo magnetic iron, protrude and slightly expand outwardly on one side, are in arc curved surface at top, form permanent-magnet stator
Magnetic pole cambered surface.Stator magnet group flush segments periphery is fixed with stainless steel casing with rivet, magnetic pole cambered surface is only exposed, forms one
Permanent magnetism magnetic suspension bearing stator element.
In the present invention: with the magnetic pole cambered surface of the stator component of 4 pole N, being surrounded by a circle towards the same center of circle, make
Surrounding is filled with N pole field in enclosing, and is fixed and just constitutes the stator that N polar axis is held, can do a S polar axis again in the same way
The stator held.
In the present invention: the rotor of magnetic suspension bearing part be achieved in that with an oblong magnetic pole as
The shaft of rotor, one end of oblong magnetic pole is that the pole the N other end is the pole S, in addition, in order to reinforce the magnetic strength at oblong magnetic pole both ends
Intensity is answered, one section short round magnetic pole, the diameter and oblong of short circle magnetic pole are respectively set again respectively at the both ends of oblong magnetic pole
Magnetic pole is identical, and length is then shorter, and one end is that the pole the N other end is the pole S, and mounting means is, N opposite with homopolarity with oblong magnetic pole
The direction that the pole N, S extremely correspond to the pole S is extremely corresponded to, and a piece of round magnetizer is set therebetween, it will be round in a manner of extruding
Magnetizer clamping is mounted in stainless pipe.Oblong magnetic pole and short round magnetic pole are squeezed because of mutual homopolarity at this time, in the two
Between round magnetizer on form high magnetic region, this area be magnetic suspension bearing assembling when rotor region corresponding with stator, because
It is identical for magnetic pole, repulsive force can be generated, thus generate magnetic and float effect.
In the present invention: oblong magnetic pole is equipped with radial flange close at both ends, because magnetic pole is also identical as stator,
Via the repulsive force of the two, axial limiter when can be as rotor motion collectively constitutes the rotor of permanent magnetism magnetic suspension bearing
Assembly.
In the present invention: by rotor assembly both ends circle magnetizer position according to the corresponding mode of homopolarity, insertion is forever
Circular space composed by four permanent-magnet stator magnetic pole cambered surfaces, that is, constitute the utility model permanent magnetism magnetic suspension in magnetic field frame assembly
Bearing.
Utility model has the advantages that 1. can form the magnetic induction intensity of stronger stator and rotor, thus can be with
It carries heavier load and resists radial direction and axial dipole field.2. utilizing permanent magnetism, simple structure, failure rate is low.3. manufacture is easy, at
This is lower, is easy to the marketization.
Detailed description of the invention
Fig. 1 is the structural decomposition diagram of the utility model stator
Fig. 2 is the structural profile illustration of the utility model rotor
Fig. 3 is the utility model fragmentary sectional schematic diagram
It wherein indicates: 1, rectangular stereo magnetic iron；2, stator magnetizer；3, magnetic pole of the stator cambered surface；4, stainless steel casing；5, magnetic
Group pilot hole；6, shell pilot hole；7, rivet；8, stator component；9, stator fixing piece；10, field frame assembly；11, oblong magnetic
Column；12, short round magnetic pole；13, round magnetizer；14, stainless pipe；15, axial limiter；16, rotor assembly.
Specific embodiment
Attached drawing discloses the specific structure of the embodiment of the utility model without limitation, practical to this with reference to the accompanying drawing
It is novel to be further described.
As shown in Figure 1, the utility model stator body includes rectangular stereo magnetic iron 1, stator magnetizer 2, stainless steel casing
4.Rectangular stereo magnetic iron 1 is to add magnetic on maximum surface, is on one side the pole S for the pole N another side.Stator magnetizer 2 is rectangular sheet
Shape is three-dimensional, and before and after size shape and three face of bottom is flushed with rectangular stereo magnetic iron 1, and the more rectangular stereo magnetic iron 1 of height is high, is higher by
Part slightly expands outwardly, and is in arc curved surface at top, forms magnetic pole of the stator cambered surface 3,2 front and back two sides center of stator magnetizer is opened
There is magnetic group pilot hole 5.There are shell pilot hole 6, size position and stator magnetizer 2 in 4 front and back two sides center of stainless steel casing
Magnetic group pilot hole 5 is consistent.
When combined stator, first by two pieces of rectangular stereo magnetic irons 1 in a manner of the extremely opposite pole N N, with special tool(s) squeeze to
Small distance, is clipped in 2 two sides of stator magnetizer, forms magnetic group, then 4 sets of stainless guiding principle shell that size is coincide are in magnetic group, this
When stator magnetizer 2 on magnetic group pilot hole 5 be just aligned with the shell pilot hole 6 on stainless steel casing 4, finally surface is pressed
Colored rivet 7 hammers into pilot hole and fixes, and just completes the utility model stator component 8.
The magnetic pole of the stator cambered surface 3 of four stator components 8 is surrounded into circle relatively, bottom is separately fixed at square framework type
9 inside of stator fixing piece, four sides, just complete the assembly of field frame assembly 10.
As shown in Fig. 2, the utility model rotor subject includes oblong magnetic pole 11, short round magnetic pole 12, round magnetizer
13.When combined rotor, by long one round magnetic pole 11 and short round magnetic pole 12 in the opposite mode of homopolarity, extruding is to compared with narrow spacing mutually
From round magnetizer 13 being clamped in centre, then cover and sealed with stainless pipe 14, then in 11 both ends of oblong magnetic pole
Side appropriate location welds annulus sheet magnetizer as axial limiter 15, just constitutes rotor assembly 16.
When practical application, it is only necessary to which, by 16 both ends of rotor assembly, point pole N processed is inserted between the pole N field frame assembly 10, S is inserted into the pole S
Between the field frame assembly of pole, then field frame assembly 10 is fixed.Due to 16 both ends of rotor assembly axial limiter 15 with it is corresponding
3 homopolarity of magnetic pole of the stator cambered surface can play the effect of axial limiting under the action of repulsive force.16 liang of rotor assembly at this time
Also because with 3 homopolarity of magnetic pole of the stator cambered surface, it is floating to generate magnetic in the stator at end, can free friction-free rotary, can also hold
Load with lotus.
Claims (1)
1. a kind of permanent magnetism magnetic suspension bearing, including permanent-magnet stator assembly and p-m rotor assembly, it is characterized in that: wherein permanent-magnet stator
Assembly is to add magnetic on biggish two sides by two pieces of rectangular stereo magnetic irons, the mutual extrusion in a manner of homopolar-repulsion, and in two blocks of magnetic
One piece of stator magnetizer of folder lining between iron forms a stator magnet group, and stator magnetizer is that rectangular slab-like is three-dimensional, three Bian Yuchang
Square stereo magnetic iron is concordant, protrudes and slightly expands outwardly on one side, is in arc curved surface at top, forms magnetic pole of the stator cambered surface, stator magnet
Group is fixed with stainless steel casing with rivet, and a magnetic suspension bearing stator component is formed, by the magnetic pole of the stator of four stator components
Cambered surface is opposite, and bottom is separately fixed at four sides on the inside of square frame, completes permanent-magnet stator assembly, wherein p-m rotor assembly be with
For one oblong magnetic pole as the shaft of rotor, one end is that the pole the N other end is the pole S, each again respectively at the both ends of oblong magnetic pole
One section short round magnetic pole is set, one end is that the pole the N other end is the pole S, and mounting means is opposite with homopolarity with oblong magnetic pole, and
A piece of round magnetizer is set therebetween, the clamping of round magnetizer is mounted in stainless pipe in a manner of extruding,
Oblong magnetic pole is equipped with radial flange close at both ends and collectively constitutes p-m rotor assembly as the axial limiter of rotor, will
Four pole arcs in permanent-magnet stator assembly are inserted into according to the corresponding mode of homopolarity in p-m rotor assembly both ends circle magnetizer position
Circular space composed by face forms permanent magnetism magnetic suspension bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820647016.5U CN208619522U (en) | 2018-05-03 | 2018-05-03 | Permanent magnetism magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820647016.5U CN208619522U (en) | 2018-05-03 | 2018-05-03 | Permanent magnetism magnetic suspension bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619522U true CN208619522U (en) | 2019-03-19 |
Family
ID=65700062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820647016.5U Withdrawn - After Issue CN208619522U (en) | 2018-05-03 | 2018-05-03 | Permanent magnetism magnetic suspension bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361280A (en) * | 2018-05-03 | 2018-08-03 | 南京高明环保科技有限公司 | Permanent magnetism magnetic suspension bearing |
-
2018
- 2018-05-03 CN CN201820647016.5U patent/CN208619522U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361280A (en) * | 2018-05-03 | 2018-08-03 | 南京高明环保科技有限公司 | Permanent magnetism magnetic suspension bearing |
| CN108361280B (en) * | 2018-05-03 | 2024-06-14 | 南京高明环保科技有限公司 | Permanent magnetic suspension bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190319 Effective date of abandoning: 20240614 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190319 Effective date of abandoning: 20240614 |