CN108006069A - A kind of magnetic suspension bearing rotor and magnetic suspension rotor system - Google Patents
A kind of magnetic suspension bearing rotor and magnetic suspension rotor system Download PDFInfo
- Publication number
- CN108006069A CN108006069A CN201711463075.3A CN201711463075A CN108006069A CN 108006069 A CN108006069 A CN 108006069A CN 201711463075 A CN201711463075 A CN 201711463075A CN 108006069 A CN108006069 A CN 108006069A
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- CN
- China
- Prior art keywords
- magnetic suspension
- magnetic
- guiding loop
- bearing rotor
- suspension bearing
- 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.)
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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
- F16C32/0459—Details of the magnetic circuit
- F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
-
- 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
- F16C32/0459—Details of the magnetic circuit
- F16C32/0468—Details of the magnetic circuit of moving parts of the magnetic circuit, e.g. of the rotor
-
- 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
- F16C32/0476—Active magnetic bearings for rotary movement with active support of one degree of freedom, e.g. axial magnetic bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The present invention relates to magnetic levitation technology field, more particularly to a kind of magnetic suspension bearing rotor and magnetic suspension rotor system.Magnetic suspension bearing rotor includes monoblock type magnetic guiding loop, multiple annular recess is arranged at intervals with along the axial direction of the magnetic guiding loop magnetic guiding loop, the opening of the annular recess is towards the outside of the magnetic guiding loop.Magnetic suspension bearing rotor magnetic guiding loop provided by the invention uses monolithic construction, and annular recess of the opening towards outside is provided with magnetic guiding loop, both solved existing magnetic suspension bearing rotor and used eddy current problem caused by complete metal ring, also solve the problems, such as that existing magnetic suspension bearing rotor is difficult to be applicable in the environment to run at high speed using lamination assembling formula structure, process and assemble is simple.Magnetic guiding loop can take larger value of interference fit since structural strength is high with shaft so that magnetic guiding loop is connected more reliable, to run at high speed with use environment with shaft.
Description
Technical field
The present invention relates to magnetic levitation technology field, more particularly to a kind of magnetic suspension bearing rotor and magnetic suspension rotor system
System.
Background technology
Magnetic bearing rotor can produce eddy-current loss when high speed rotates, and in order to reduce eddy-current loss, traditional method is to adopt
Magnetic bearing rotor is formed with silicon steel plate packing.One side silicon steel sheet preparation process is complicated；Another aspect silicon sheet core and rotor
Cooperation between axis can not realize effective interference fit, so under ultrahigh rotating speed, iron core and the close journey of armature spindle cooperation
Degree can destroy, this easily leads to the loosening that structure connects during equipment operation, and if the bonding between silicon steel sheet produce loosening and make
Obvious vibration and larger noise when forming apparatus operates.Also, since silicon steel blade technolgy limits the molding thickness of silicon steel sheet,
The preparation of silicon sheet core can not realize miniaturization.
In conclusion silicon steel sheet magnetic bearing rotor core can not adapt to, ultrahigh rotating speed, miniature requirement.
The content of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is solving, magnetic bearing rotor preparation process in the prior art is complicated, existing silicon
Steel disc folds the problem of rotor can not be suitable under high velocity environment.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of magnetic suspension bearing rotor, including monoblock type magnetic guiding loop,
Multiple annular recess, the equal direction of opening of the annular recess are arranged at intervals with along the axial direction of the magnetic guiding loop magnetic guiding loop
The outside of the magnetic guiding loop.
According to the present invention, the depth of the annular recess is the 1/2~1/5 of the magnetic conduction ring radial thickness.
According to the present invention, it is filled with insulating materials in the annular recess.
According to the present invention, the minimum spacing between the two neighboring annular recess is 0.2~0.5mm.
According to the present invention, the width of the annular recess is 4~20 μm.
According to the present invention, the annular recess is molded by laser etching process.
According to the present invention, the material of the magnetic guiding loop is permeability alloys steel or ingot iron.
Present invention also offers a kind of magnetic suspension rotor system, including shaft and above-mentioned magnetic suspension bearing rotor, institute
The outside that magnetic suspension bearing rotor is set in the shaft is stated, the shaft is interference fitted with the magnetic suspension bearing rotor.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the following advantages that compared with prior art：Magnetic suspension shaft provided in this embodiment
Forward sub- magnetic guiding loop and use monolithic construction, and annular recess of the opening towards outside is provided with magnetic guiding loop, both solved
Existing magnetic suspension bearing rotor uses eddy current problem caused by complete metal ring, also solves existing magnetic suspension bearing rotor
The problem of being difficult to be applicable in the environment to run at high speed using lamination assembling formula structure, process and assemble is simple.Magnetic conduction in the present embodiment
Ring can take larger value of interference fit since structural strength is high with shaft so that magnetic guiding loop be connected with shaft it is more reliable,
To use the environment to run at high speed.
Brief description of the drawings
Fig. 1 is the sectional view of magnetic suspension bearing rotor provided in an embodiment of the present invention；
Fig. 2 is the structural solid figure of the magnetic suspension rotor system provided in an embodiment of the present invention with magnetic suspension bearing；
Fig. 3 is the enlarged drawing at A in Fig. 2.
In figure：1：Magnetic guiding loop；2：Annular recess；3：Shaft.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained on the premise of creative work is not made, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of magnetic suspension bearing rotor provided in an embodiment of the present invention, including monoblock type magnetic guiding loop 1, along institute
State and multiple annular recess 2 are arranged at intervals with the axial direction magnetic guiding loop 1 of magnetic guiding loop 1, the equal direction of opening of the annular recess 2
The outside of the magnetic guiding loop 1.Magnetic suspension bearing rotor magnetic guiding loop 1 provided in this embodiment uses monolithic construction, and magnetic conduction
Annular recess 2 of the opening towards outside is provided with ring 1, existing magnetic suspension bearing rotor had both been solved and has used complete metal ring
Caused eddy current problem, also solves existing magnetic suspension bearing rotor and is difficult to applicable run at high speed using lamination assembling formula structure
Environment the problem of, process and assemble is simple.Magnetic guiding loop 1 in the present embodiment since structural strength is high, can be taken with shaft compared with
Big value of interference fit so that magnetic guiding loop 1 is connected more reliable, to run at high speed with use environment with shaft.
Preferably, the depth of annular recess 2 described in the present embodiment is the 1/2~1/5 of 1 radial thickness of magnetic guiding loop.
Since eddy-current loss mainly concentrates ability material surface, so less etching depth can effectively reduce vortex, therefore, by ring
The depth of shape groove 2 is arranged to the 1/2~1/5 of 1 radial thickness of magnetic guiding loop, can not only ensure to reduce vortex, but also can protect
Demonstrate,prove the structural strength of magnetic guiding loop 1.
Preferably, it is filled with insulating materials in annular recess 2 described in the present embodiment.Insulation material is filled in annular groove
Material, 2 both sides of annular recess can contact when power is squeezed in avoiding, and influence to reduce the effect of vortex.
Preferably, the minimum spacing a in the present embodiment between the two neighboring annular recess 2 is 0.2~0.5mm.Phase
The thickness of the tablet formed between minimum spacing, that is, two neighboring annular recess 2 between adjacent two annular recess 2
Degree, the thickness of tablet is unsuitable too small, avoids the structural strength of tablet too low, is produced fracture under high velocity environment.Preferably, originally
The width b of annular recess 2 described in embodiment is 4~20 μm.Annular recess 2 sets lesser width to ensure magnetic conduction ring cutting
Surface area after groove is smaller compared to the magnetic guiding loop surface area reduction of non-grooving, does not influence the output of magnetic bearing.Preferably, this reality
Annular recess 2 described in example is applied to be molded by laser etching process.Laser etching process high precision machining, error is small, Neng Gouman
The process requirements of sufficient small size magnetic guiding loop 1.The magnetic guiding loop of reduced size is set to be advantageously implemented the miniaturization of magnetic suspension bearing, into
One step is conducive to use of the magnetic suspension bearing on small household appliance.
Preferably, the material of magnetic guiding loop 1 described in the present embodiment is permeability alloys steel or ingot iron.With preferably leading
The material of magnetic energy power and structural strength can be employed as magnetic guiding loop.
As shown in Figures 2 and 3, the embodiment of the present invention additionally provides a kind of magnetic suspension rotor system, including shaft 3 and on
The magnetic suspension bearing rotor stated, the magnetic suspension bearing rotor are set in the outside of the shaft 3, the shaft 3 and the magnetic
Suspension bearing rotor is interference fitted.Make it that magnetic suspension rotor system process and assemble is simple using above-mentioned magnetic suspension bearing rotor,
Interference fit connection is reliable, can be suitable for the annular to run at high speed.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (8)
- A kind of 1. magnetic suspension bearing rotor, it is characterised in that：Including monoblock type magnetic guiding loop, along being led described in the axial direction of the magnetic guiding loop Multiple annular recess are arranged at intervals with magnet ring, the opening of the annular recess is towards the outside of the magnetic guiding loop.
- 2. magnetic suspension bearing rotor according to claim 1, it is characterised in that：The depth of the annular recess is led to be described The 1/2~1/5 of magnet ring radial thickness.
- 3. magnetic suspension bearing rotor according to claim 1, it is characterised in that：Insulation material is filled with the annular recess Material.
- 4. magnetic suspension bearing rotor according to claim 1, it is characterised in that：Between the two neighboring annular recess Minimum spacing is 0.2~0.5mm.
- 5. magnetic suspension bearing rotor according to claim 1, it is characterised in that：The width of the annular recess is 4~20 μ m。
- 6. magnetic suspension bearing rotor according to claim 1, it is characterised in that：The annular recess passes through laser ablation work Skill is molded.
- 7. magnetic suspension bearing rotor according to claim 1, it is characterised in that：The material of the magnetic guiding loop is permeability alloys Steel or ingot iron.
- A kind of 8. magnetic suspension rotor system, it is characterised in that：Including shaft and such as claim 1-7 any one of them magnetcisuspensions Floating bearing rotor, the magnetic suspension bearing rotor are set in the outside of the shaft, and the shaft is forwarded with the magnetic suspension shaft Son interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463075.3A CN108006069A (en) | 2017-12-28 | 2017-12-28 | A kind of magnetic suspension bearing rotor and magnetic suspension rotor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463075.3A CN108006069A (en) | 2017-12-28 | 2017-12-28 | A kind of magnetic suspension bearing rotor and magnetic suspension rotor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108006069A true CN108006069A (en) | 2018-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711463075.3A Pending CN108006069A (en) | 2017-12-28 | 2017-12-28 | A kind of magnetic suspension bearing rotor and magnetic suspension rotor system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108006069A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010017877A1 (en) * | 2000-02-21 | 2001-08-30 | Ebara Corporation | Magnetic bearing and circulation fan apparatus |
| CN101761454A (en) * | 2009-10-30 | 2010-06-30 | 北京航空航天大学 | Vertical shaft maglev wind power generator |
| CN102434587A (en) * | 2011-09-19 | 2012-05-02 | 北京航空航天大学 | Permanent-magnetic passive axial magnetic suspension bearing with passive damping effect |
| CN102518664A (en) * | 2011-12-07 | 2012-06-27 | 清华大学 | Device used for reducing ring vortex of axial electromagnetic bearing |
| US20130293051A1 (en) * | 2010-12-23 | 2013-11-07 | Siemens Aktiengesellschaft | Radial magnetic bearing for magnetic support of a rotor |
| US20150233421A1 (en) * | 2011-12-19 | 2015-08-20 | Siemens Aktiengesellschaft | Magnetic radial bearing with a rotor laminated in a star-shaped manner |
| CN207961272U (en) * | 2017-12-28 | 2018-10-12 | 苏州麦格奈迪磁悬浮技术有限公司 | A kind of magnetic suspension bearing rotor and magnetic suspension rotor system |
-
2017
- 2017-12-28 CN CN201711463075.3A patent/CN108006069A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010017877A1 (en) * | 2000-02-21 | 2001-08-30 | Ebara Corporation | Magnetic bearing and circulation fan apparatus |
| CN101761454A (en) * | 2009-10-30 | 2010-06-30 | 北京航空航天大学 | Vertical shaft maglev wind power generator |
| US20130293051A1 (en) * | 2010-12-23 | 2013-11-07 | Siemens Aktiengesellschaft | Radial magnetic bearing for magnetic support of a rotor |
| CN102434587A (en) * | 2011-09-19 | 2012-05-02 | 北京航空航天大学 | Permanent-magnetic passive axial magnetic suspension bearing with passive damping effect |
| CN102518664A (en) * | 2011-12-07 | 2012-06-27 | 清华大学 | Device used for reducing ring vortex of axial electromagnetic bearing |
| US20150233421A1 (en) * | 2011-12-19 | 2015-08-20 | Siemens Aktiengesellschaft | Magnetic radial bearing with a rotor laminated in a star-shaped manner |
| CN207961272U (en) * | 2017-12-28 | 2018-10-12 | 苏州麦格奈迪磁悬浮技术有限公司 | A kind of magnetic suspension bearing rotor and magnetic suspension rotor system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200703 Address after: 100095 Unit 301-B146, Building 17, No. 3 Gaolizhang Road, Haidian District, Beijing Applicant after: Beijing Kuntengmig Technology Co.,Ltd. Address before: 215151 Room 203, 2 building, 148 business building, 148 Hwang Road, Jiangsu hi tech Zone. Applicant before: SUZHOU MAIGE NAIDI MAGNETIC SUSPENSION TECHNOLOGY Co.,Ltd. |
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| TA01 | Transfer of patent application right |