CN106369053A - Magnetic suspension rotating shaft - Google Patents
Magnetic suspension rotating shaft Download PDFInfo
- Publication number
- CN106369053A CN106369053A CN201611108828.4A CN201611108828A CN106369053A CN 106369053 A CN106369053 A CN 106369053A CN 201611108828 A CN201611108828 A CN 201611108828A CN 106369053 A CN106369053 A CN 106369053A
- Authority
- CN
- China
- Prior art keywords
- rotor core
- magnetic suspension
- stator
- suspension bearing
- rotating shaft
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
- F16C32/0489—Active magnetic bearings for rotary movement with active support of five degrees of freedom, e.g. two radial magnetic bearings combined with an axial bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2204/00—Metallic materials; Alloys
- F16C2204/60—Ferrous alloys, e.g. steel alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention provides a magnetic suspension bearing. The magnetic suspension bearing comprises a stator, a rotor core, a rotating shaft, axial control windings and radial control windings, wherein a gap is reserved between the stator and the rotor core, and an axial control air gap and a radial control air gap are respectively formed in the gap. The magnetic suspension bearing is an axial-radial magnetic suspension bearing, and the traditional magnetic suspension bearing system is replaced with one bearing, so that a rotor can suspend stably at five degrees of freedom; the magnetic suspension rotating shaft is small in size and less in power consumption, thus being suitable for miniaturized application occasions with small volumes.
Description
Technical field
The present invention relates to mechanical equipment technical field, in particular to a kind of axial direction-radial magnetic bearing.
Background technology
Magnetic suspension bearing is that rotor suspension in stator space and is stablized the novel high-performance rotating by a kind of utilization magnetic field force
Bearing.There is no any Mechanical Contact between its rotor and stator, have no frictional dissipation, need not lubricate, the plain shaft such as life-span length
Hold the advantage hardly matching.The mechanical part of magnetic suspension bearing has cod and two kinds of journal bearing, and cod has stator
(electric magnet) and thrust disc are constituted, and journal bearing is made up of stator (electric magnet) and rotor.
Traditional magnetic levitation bearing system typically to realize rotor using two radial direction magnetic bearings and an axial magnetic bearing
The stable suspersion of five degree of freedom, these three magnetic bearings are axially occupying suitable space, limit the critical speed of motor.
Content of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of axial direction-radial magnetic bearing device to realize
The stable suspersion of five degree of freedom, reduction radial dimension are to be applied to miniaturization；Eliminate the coupling axially controlling and radially controlling.
In a first aspect, embodiments providing a kind of magnetic suspension bearing it is characterised in that including, stator, rotor ferrum
Core, rotating shaft, axial controling winding, radially control winding, wherein: described rotating shaft is cylindrical；Described rotor core is around described
Rotating shaft is arranged；Described stator is arranged on outside described rotor core, and described stator does not contact with described rotor core；Described axially control
Winding processed and described radially control winding are respectively positioned on described stator, the axis of wherein said axial controling winding and described rotating shaft
It is arranged in parallel, described radially control winding is vertically arranged with the axis of described rotating shaft；Described stator, the two pairs of radially control windings,
A pair axial controling winding constitutes one group of magnetic pole.
In conjunction with a first aspect, embodiments providing the first possible embodiment of first aspect, described turn
Sub- iron core is by the way of shaft shoulder positioning around described rotating shaft setting.
In conjunction with the first possible embodiment of first aspect or first aspect, the invention provides the second of first aspect
Outwards there is bossing at the symmetrical position of the possible embodiment of kind, described rotor core and spindle central；The shape of described stator
Shape is spill, and the notch part of described stator adopts cordless sheathed with the bossing of described rotor core.
In conjunction with a first aspect, the invention provides the third possible embodiment of first aspect, described stator adopts
Electrical pure iron or stalloy are made, and described rotor core is made using electrical pure iron or stalloy.
In conjunction with a first aspect, the invention provides the 4th of first aspect the kind of possible embodiment, described stator and institute
State to be formed in the axial direction between rotor core and axially control air gap；Perpendicular to axis between described stator and described rotor core
Direction forms and radially controls air gap.
In conjunction with a first aspect, the invention provides the 5th of first aspect the kind of possible embodiment, described stator, described
Rotor core and described axially control air gap form axial magnetic path；Described stator, described rotor core and described radial direction control
Air gap forms radial flux road.
In conjunction with the 5th kind of possible embodiment of first aspect, the invention provides the 6th of first aspect the kind possible
Embodiment, described axial magnetic path and described radial flux road are separate, eliminate axial control and radial direction from structure
The coupling controlling.
In conjunction with the 4th kind of possible embodiment of first aspect and first aspect, the invention provides the of first aspect
Seven kinds is probably embodiment, described magnetic suspension bearing, when its rotor core offsets equilbrium position, axially control air gap to diminish or
When becoming big, by adjusting the electric current being passed through in axial controling winding so that rotor core bears extra axial force of magnetic field and returns to
Equilbrium position, realizes rotating shaft and stablizes stable suspersion rotation；When rotor displacement equilbrium position, air gap is radially controlled to diminish or become big
When, by adjusting the electric current being passed through in radially control winding so that when rotor core diminishes or becomes big, footpath is passed through by adjustment
To the electric current in controling winding so that rotor core bears additional radial magnetic field force and returns to equilbrium position, realize rotating shaft stable
Suspend rotation.
In conjunction with a first aspect, the invention provides the 8th of first aspect the kind of possible embodiment, described magnetic suspension shaft
Angle determination mode between the two groups of magnetic poles holding is: m=360o/(2*2n), wherein, m is the angle between two groups of magnetic poles, and n is
Integer more than or equal to 1.
In conjunction with a first aspect, the invention provides the 9th of first aspect the kind of possible embodiment, described magnetic suspension is adopted
Substitute conventional maglev bearing arrangement with bearing it is achieved that the stable suspersion of five degree of freedom.
By adopting technique scheme, there is provided a kind of magnetic suspension bearing, comprising: stator, rotor core, rotating shaft, axle
To controling winding, radially control winding, wherein: rotating shaft is cylindrical；Rotor core is arranged around described rotating shaft；Stator is arranged on
Outside rotor core, stator does not contact with rotor core；Axial controling winding and radially control winding are respectively positioned on stator, its axis
To the diameter parallel setting of controling winding and rotating shaft, controling winding is vertically arranged with the axis of described rotating shaft；Stator, two to radially
Controling winding, a pair axial controling winding constitute one group of magnetic pole, when realizing the stable suspersion of five degree of freedom of rotor it is not necessary to
Take larger space, small volume, power consumption are relatively low.
For enabling the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of axial direction-radial magnetic bearing sectional view that the embodiment of the present invention is provided；
Fig. 2 shows a kind of axial end figure with 2 groups of magnetic poles that the embodiment of the present invention is provided；
Fig. 3 shows a kind of axial end figure with 4 groups of magnetic poles that the embodiment of the present invention is proposed.
Main element symbol description: 101- stator；102- rotor core；103- rotating disk；104- axial direction controling winding；105-
Radially control winding；106- axially controls air gap；107- radially controls air gap；Mono- group of magnetic pole of 110-；111- magnetic suspension bearing.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
Middle accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment only
It is a part of embodiment of the present invention, rather than whole embodiments.The present invention generally described and illustrated in accompanying drawing herein is real
The assembly applying example can be arranged with various different configurations and design.Therefore, below to the present invention's providing in the accompanying drawings
The detailed description of embodiment is not intended to limit the scope of claimed invention, but is merely representative of the selected reality of the present invention
Apply example.Based on embodiments of the invention, the institute that those skilled in the art are obtained on the premise of not making creative work
There is other embodiment, broadly fall into the scope of protection of the invention.
Present invention is generally directed to a kind of magnetic suspension bearing.It is described below by embodiment one.
The embodiment of the present invention proposes a kind of magnetic suspension bearing, as shown in figure 1, being the axial, cross-sectional view of magnetic suspension bearing, should
Magnetic suspension bearing includes stator 101, rotor core 102, rotating shaft 103, axially controls 104, radially control winding 105.
In one embodiment, rotating shaft 103 can be cylindrical.
Wherein, cylindrical can be the cylindrical of even thickness or the uneven cylinder of upper and lower thickness
Shape, here does not do specific restriction.
Rotor core 102 twisted rotary shaft 103 is arranged, and stator 101 is arranged on outside rotor core 102, stator 101 and rotor ferrum
Core 102 does not contact.Permanent magnet 106 is embedded in stator 101, and axial controling winding 104 and radially control winding 105 are respectively positioned on and determine
On son 101, wherein axial controling winding 104 is the controling winding with the diameter parallel of rotating shaft 103, radially control winding 105 with
It is the vertical controling winding of the axis of rotating shaft 103.
In the technical scheme that the embodiment of the present invention proposes, 101, two pairs of radially control windings 105 of stator, a pair axially control
Winding 104 processed constitutes a pair of magnetic pole 110.
Rotor core 102 twisted rotary shaft by the way of shaft shoulder positioning in the technical scheme that the embodiment of the present invention proposes
Described rotor core 102 is wherein referred to as rotor 200 with described rotating shaft 103 by 103 settings.
In embodiments of the present invention, outwards there is bossing at rotor core 102 and the symmetrical position of spindle central；Stator
101 be shaped as spill, the concave portions of stator 101 adopt cordless sheathed with the bossing of rotor core 102.
Wherein, stator 101 can be made using the good material of magnetic property, such as electrical pure iron or stalloy.Phase
Ying Di, rotor core 102 can be made with the good material of magnetic property, such as electrical pure iron or stalloy.Stator 101 and turning
The material of sub- iron core 102 can equally can also be different, or using the good material of other magnetic properties, here is not done to be had
Body requires.
In embodiments of the present invention, formed in the axial direction between stator 101 and rotor core 102 and axially control air gap
106；Radially control air gap 107 along being formed perpendicular to axis direction.
In embodiments of the present invention, stator 101, rotor core 102 and axially control air gap 106 form axial magnetic path,
Stator 101, rotor core 102 and radially control air gap 107 form radial flux road.
In embodiments of the present invention, axial magnetic path and radial flux road are separate, eliminate axial control from structure
System and the coupling radially controlling.
In embodiments of the present invention, wherein, the rotor 200 skew equilbrium position in magnetic suspension bearing, axially controls air gap
106 when diminishing or becoming big, is passed through the electric current in axial controling winding 104 so that rotor 200 bears extra axial magnetic by adjustment
Field force and return to equilbrium position, realize rotating shaft 103 stable suspersion rotation.
Wherein, the rotor 200 skew equilbrium position in magnetic suspension bearing, when radially controlling air gap 107 to diminish or become big, leads to
Cross and adjust the electric current being passed through in radially control winding 105 so that rotor 200 bears extra axial force of magnetic field and returns to balance position
Put, realize the rotation of rotating shaft 103 stable suspersion.
In embodiments of the present invention, the angle between two groups of magnetic poles of magnetic suspension bearing 111 is m=360o/(2*2n), its
Middle n is the integer more than or equal to 1, and Fig. 2 is the axial end figure of the permanent magnetism off-set magnetic suspension bearing having 2 groups of magnetic poles when n takes 1,
Fig. 3 is the axial end figure of the permanent magnetism off-set magnetic suspension bearing having 4 groups of magnetic poles when n is equal to 2.
In embodiments of the present invention, this magnetic suspension bearing bearing is axial direction-radial magnetic bearing, and this magnetic suspension bearing is adopted
Replace conventional maglev bearing arrangement with a bearing, it is possible to achieve the stable suspersion of five degree of freedom of rotor, wherein five certainly
Refer to rotor by spending respectively along the one-movement-freedom-degree of three rectangular coordinate direction of principal axis of x, y, z and the rotation around x coordinate axle and y-coordinate axle
Degree of freedom.
This magnetic bearing structure is compact, radial dimension less it is adaptable to miniaturization, the application scenario of small volume.
It should also be noted that similar label and letter expression similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, or should
Orientation or position relationship that invention product is usually put when using, are for only for ease of the description present invention and simplify description, and not
It is instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve as indicating or implying relative importance.
In describing the invention in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or one
Body ground connects；Can be to be mechanically connected or electrically connect；Can be joined directly together it is also possible to by intermediary indirect
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
Last it is noted that the specific embodiment of embodiment described above, the only present invention, in order to the present invention to be described
Technical scheme, be not intended to limit, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this
Bright be described in detail, it will be understood by those within the art that: any those familiar with the art
The invention discloses technical scope in, it still can be modified to the technical scheme described in previous embodiment or can be light
It is readily conceivable that change, or equivalent is carried out to wherein some technical characteristics；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of embodiment of the present invention technical scheme.The protection in the present invention all should be covered
Within the scope of.Therefore, protection scope of the present invention should described be defined by scope of the claims.
Claims (9)
1. a kind of magnetic suspension bearing is it is characterised in that include:
Stator, rotor core, rotating shaft, axial controling winding, radially control winding, wherein:
Described rotating shaft is cylindrical；
Described rotor core is arranged around described rotating shaft；
Described stator is arranged on outside described rotor core, and described stator does not contact with described rotor core；
Described axial controling winding and described radially control winding are respectively positioned on described stator, wherein said axial controling winding with
The diameter parallel setting of described rotating shaft, described radially control winding is vertically arranged with the axis of described rotating shaft；
Described stator, two pairs of radially control windings, a pair axial controling winding constitute one group of magnetic pole.
2. magnetic suspension bearing according to claim 1 is it is characterised in that described rotor core is by the way of shaft shoulder positioning
Around described rotating shaft setting.
3. magnetic suspension bearing according to claim 1 and 2 is it is characterised in that described rotor core and spindle central are symmetrical
Position outwards have bossing；Described stator be shaped as spill, the notch part of described stator and described rotor core
Bossing adopts cordless sheathed.
4. magnetic suspension bearing according to claim 1 is it is characterised in that the material of described stator comprises:
Electrical pure iron；Or
Stalloy.
5. magnetic suspension bearing according to claim 1 is it is characterised in that the material of described rotor core comprises:
Electrical pure iron；Or
Stalloy.
6. magnetic suspension bearing according to claim 1 is it is characterised in that also include:
The axial direction being formed in the axial direction between described stator and described rotor core controls air gap；
Control air gap perpendicular to the radial direction that axis direction is formed between described stator and described rotor core.
7. magnetic suspension bearing according to claim 1 is it is characterised in that described stator, described rotor core and described axle
Form axial magnetic path to controlling between air gap；
Described stator, described rotor core and described radial direction control and form radial flux road between air gap.
8. magnetic suspension bearing according to claim 6 is it is characterised in that described axial magnetic path and described radial flux road
Between separate.
9. magnetic suspension bearing according to claim 1 is it is characterised in that between two groups of magnetic poles of described magnetic suspension bearing
Angle determination mode is:
M=360 °/(2*2n), wherein, m is the angle between two groups of magnetic poles, and n is the integer more than or equal to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108828.4A CN106369053A (en) | 2016-12-06 | 2016-12-06 | Magnetic suspension rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108828.4A CN106369053A (en) | 2016-12-06 | 2016-12-06 | Magnetic suspension rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106369053A true CN106369053A (en) | 2017-02-01 |
Family
ID=57892284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611108828.4A Pending CN106369053A (en) | 2016-12-06 | 2016-12-06 | Magnetic suspension rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106369053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135581A (en) * | 2021-11-15 | 2022-03-04 | 西安航天精密机电研究所 | Magnetic suspension bearing system and control method thereof |
| CN117329157A (en) * | 2023-10-07 | 2024-01-02 | 广东省安佳空调制冷有限公司 | Compressor manufacturing method, direct dual-phase transformation liquid cooling, cooling and natural cooling method |
| CN117588493A (en) * | 2024-01-19 | 2024-02-23 | 山东天瑞重工有限公司 | Radial-axial integrated magnetic suspension bearing and magnetic suspension motor for air compressor |
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| CN201696489U (en) * | 2010-05-24 | 2011-01-05 | 山东科技大学 | Permanent-magnet offset conical inner rotor mixing governing magnetic bearing |
| US20140210289A1 (en) * | 2012-10-08 | 2014-07-31 | Active Power, Inc. | Apparatus and methods for passive magnetic reductionof thrust force in rotating machines |
| CN204186801U (en) * | 2014-09-01 | 2015-03-04 | 江苏大学 | A kind of low power consumption axial hybrid magnetic bearing |
| CN106015331A (en) * | 2016-06-08 | 2016-10-12 | 淮阴工学院 | Low-power-consumption permanent-magnet bias five-degree-of-freedom integrated magnetic bearing |
| CN206397930U (en) * | 2016-12-06 | 2017-08-11 | 中国工程物理研究院材料研究所 | A kind of magnetic suspension rotating shaft |
-
2016
- 2016-12-06 CN CN201611108828.4A patent/CN106369053A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201696489U (en) * | 2010-05-24 | 2011-01-05 | 山东科技大学 | Permanent-magnet offset conical inner rotor mixing governing magnetic bearing |
| US20140210289A1 (en) * | 2012-10-08 | 2014-07-31 | Active Power, Inc. | Apparatus and methods for passive magnetic reductionof thrust force in rotating machines |
| CN204186801U (en) * | 2014-09-01 | 2015-03-04 | 江苏大学 | A kind of low power consumption axial hybrid magnetic bearing |
| CN106015331A (en) * | 2016-06-08 | 2016-10-12 | 淮阴工学院 | Low-power-consumption permanent-magnet bias five-degree-of-freedom integrated magnetic bearing |
| CN206397930U (en) * | 2016-12-06 | 2017-08-11 | 中国工程物理研究院材料研究所 | A kind of magnetic suspension rotating shaft |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135581A (en) * | 2021-11-15 | 2022-03-04 | 西安航天精密机电研究所 | Magnetic suspension bearing system and control method thereof |
| CN114135581B (en) * | 2021-11-15 | 2023-10-20 | 西安航天精密机电研究所 | Magnetic suspension bearing system and control method thereof |
| CN117329157A (en) * | 2023-10-07 | 2024-01-02 | 广东省安佳空调制冷有限公司 | Compressor manufacturing method, direct dual-phase transformation liquid cooling, cooling and natural cooling method |
| CN117588493A (en) * | 2024-01-19 | 2024-02-23 | 山东天瑞重工有限公司 | Radial-axial integrated magnetic suspension bearing and magnetic suspension motor for air compressor |
| CN117588493B (en) * | 2024-01-19 | 2024-04-16 | 山东天瑞重工有限公司 | Radial-axial integrated magnetic suspension bearing and magnetic suspension motor for air compressor |
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