CN107327485A - A kind of monoblock type radial direction magnetic bearing magnetic pole of band every magnetic bridge - Google Patents
A kind of monoblock type radial direction magnetic bearing magnetic pole of band every magnetic bridge Download PDFInfo
- Publication number
- CN107327485A CN107327485A CN201710755171.9A CN201710755171A CN107327485A CN 107327485 A CN107327485 A CN 107327485A CN 201710755171 A CN201710755171 A CN 201710755171A CN 107327485 A CN107327485 A CN 107327485A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- bridge
- magnetic pole
- pole
- 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.)
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/02—Cores, Yokes, or armatures made from sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a kind of band every magnetic bridge monoblock type radial direction magnetic bearing magnetic pole, the magnetic pole is made up of stamping silicon steel plate stacking, including an annular body, the body is provided with four every magnetic bridge, two teeth portion are provided between magnetic bridge adjacent two, teeth portion is located on the inner peripheral wall of body, adjacent two two teeth portion formation magnetic poles between magnetic bridge.It is joined directly together between four groups of magnetic poles, therefore relative position is fixed, the uniformity and stability of magnetic bearing product will not change because of position of magnetic pole deviation；Magnetic pole component outline is cylinder, therefore installation positioning in the housing is simple and reliable；It can greatly reduce leakage field, reduction interference every magnetic bridge structure, therefore magnetic bearings control is relatively simple, the control system for the magnetic pole magnetic bearing that can follow conventional lines.
Description
Technical field：
The present invention relates to a kind of band every magnetic bridge monoblock type radial direction magnetic bearing magnetic pole.
Background technology：
Magnetic bearing is to make bearing of the rotor in suspended state using controlled magnetic field.Hanged because the rotor in magnetic bearing is in
Floating state, is not physically contacted with retaining element, therefore, it is possible to can not be high-revolving turn of load suitable for conventional scroll bearing
Son.
But conventional magnetic bearing field structure also has some defects and problem：
1st, the uniformity and less stable of conventional magnetic bearing field structure；Common magnetic bearing magnetic pole is four separated
U-shaped electromagnet, due to not being connected with each other between four magnetic poles, it is therefore desirable to by other structures part by between four magnetic poles in succession
Pick up and.But due to the presence of structural member mismachining tolerance itself and fit-up gap, the relative position between magnetic pole has small
Deviation and loosening；And the size in gap is larger to magnetic bearing performance impact between magnetic bearing magnetic pole and rotor.Therefore conventional magnetic axis
The uniformity and less stable of magnetic bearing product can be caused by holding this separate structure of magnetic pole, generally require to be rectified repeatedly
Just and fine setting.
2nd, monoblock type magnetic bearing polar leakage is serious, and control difficulty is big；Monoblock type magnetic bearing magnetic pole is by by four magnetic poles
An annulus is connected as, the uniformity and stability problem of magnetic bearing product is solved.But it is due to be interconnected between magnetic pole,
So when rotor physical location is off-center, flux path can it is smaller from air gap, while being produced in the less inoperative magnetic pole of magnetic resistance
Raw leakage field.The presence of leakage field path causes the suction direction of magnetic bearing to glance off, i.e. actual suction direction and control system institute
Desired suction direction is inconsistent.For the suction deflection interference for overcoming this leakage field to produce, it is necessary in magnetic bearings control system
Extra increase recognizes and resists the function of this interference in system, so as to increase the difficulty of magnetic bearings control.
The content of the invention：
The present invention is the monoblock type radial direction that a kind of band is provided to solve the problem of above-mentioned prior art is present every magnetic bridge
Magnetic bearing magnetic pole.
The technical solution adopted in the present invention has：A kind of band is every the monoblock type radial direction magnetic bearing magnetic pole of magnetic bridge, the magnetic pole
Be made up of stamping silicon steel plate stacking, including an annular body, the body provided with four every magnetic bridge, adjacent two every
Provided with two teeth portion between magnetic bridge, teeth portion is located on the inner peripheral wall of body, and adjacent two two teeth portion between magnetic bridge are formed
Magnetic pole.
Further, it is described every magnetic bridge be the U-shaped groove-like structure with two side walls and a bottom wall.
Further, the width every magnetic bridge is much smaller than ring body and magnet pole widths.
The present invention has the advantages that：
1) it is joined directly together between four groups of magnetic poles, therefore relative position is fixed, the uniformity and stability of magnetic bearing product are not
It can change because of position of magnetic pole deviation；
2) magnetic pole component outline is cylinder, therefore installation positioning in the housing is simple and reliable；
3) leakage field, reduction interference can be greatly reduced every magnetic bridge structure, therefore magnetic bearings control is relatively simple, can continue to use
The control system of conventional magnetic pole magnetic bearing.
Brief description of the drawings：
Fig. 1 is structure chart of the present invention.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention discloses a kind of monoblock type radial direction magnetic bearing magnetic pole of band every magnetic bridge, the magnetic pole is by punching press
Silicon steel plate stacking composition, including an annular body 1 are shaped, body 1 is provided with four every magnetic bridge 11, adjacent two every magnetic bridge 11
Between be located at provided with two teeth portion 12, teeth portion 12 on the inner peripheral wall of body 1, adjacent two two teeth portion 12 between magnetic bridge 11
Form magnetic pole.
Every magnetic bridge 11 be the U-shaped groove-like structure with two side walls and a bottom wall.Ring is much smaller than every the width of magnetic bridge 11
The width of shape body 1, and every width of the width much smaller than magnetic pole of magnetic bridge 11.
It can mitigate the leakage field phenomenon between magnetic pole significantly every magnetic bridge 11 in the present invention.Due to the attachment structure between magnetic pole
It is only used for ensureing the accurate of magnetic pole relative position with stably, and larger loading force need not be born, therefore can be made very thin,
Only need to consider the precision that silicon steel sheet punching die can reach.
Due to every the width of magnetic bridge 11 only have magnet pole widths 1/tens, it is even more thin, so producing between the magnetic pole
During raw leakage field, minimal amount of leakage field magnetic flux will reach magnetic saturation in magnetic bridge, so that magnetic flux can not continue increase.Therefore band
The interference of leakage field is more much lower than monoblock type magnetic pole in the monoblock type magnetic pole of magnetic bridge, and magnetic bearings control can ignore this error,
Directly using the control method of conventional magnetic pole magnetic bearing.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (3)
1. a kind of band is made up of every the monoblock type radial direction magnetic bearing magnetic pole of magnetic bridge, the magnetic pole stamping silicon steel plate stacking, its
It is characterised by：Including an annular body (1), the body (1) is provided with four every magnetic bridge (11), adjacent two every magnetic bridge
(11) provided with two teeth portion (12) between, teeth portion (12) is located on the inner peripheral wall of body (1), and adjacent two between magnetic bridge (11)
Two teeth portion (12) formed magnetic pole.
2. band as claimed in claim 1 is every the monoblock type radial direction magnetic bearing magnetic pole of magnetic bridge, it is characterised in that：It is described every magnetic bridge
(11) it is the U-shaped groove-like structure with two side walls and a bottom wall.
3. band as claimed in claim 2 is every the monoblock type radial direction magnetic bearing magnetic pole of magnetic bridge, it is characterised in that：It is described every magnetic bridge
(11) width is much smaller than ring body (1) and magnet pole widths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755171.9A CN107327485A (en) | 2017-08-29 | 2017-08-29 | A kind of monoblock type radial direction magnetic bearing magnetic pole of band every magnetic bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755171.9A CN107327485A (en) | 2017-08-29 | 2017-08-29 | A kind of monoblock type radial direction magnetic bearing magnetic pole of band every magnetic bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107327485A true CN107327485A (en) | 2017-11-07 |
Family
ID=60204590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710755171.9A Pending CN107327485A (en) | 2017-08-29 | 2017-08-29 | A kind of monoblock type radial direction magnetic bearing magnetic pole of band every magnetic bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107327485A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114960A (en) * | 1973-01-18 | 1978-09-19 | Societe Europeenne De Propulsion | Radial displacement detector device for a magnetic bearing |
| JPS5834226A (en) * | 1981-08-21 | 1983-02-28 | Seiko Instr & Electronics Ltd | Electromagnet for magnetic bearing and its manufacturing method |
| JPS59122426U (en) * | 1983-02-04 | 1984-08-17 | 株式会社安川電機 | Split core holding device |
| JPH07301235A (en) * | 1994-05-06 | 1995-11-14 | Daikin Ind Ltd | Magnetic pole structure of magnetic bearing |
| KR0152975B1 (en) * | 1994-12-07 | 1998-12-01 | 한동철 | Magnetic bearing and manufacturing process |
| JP2001041239A (en) * | 1999-07-28 | 2001-02-13 | Seiko Seiki Co Ltd | Magnetic bearing device |
| CN1707127A (en) * | 2004-12-30 | 2005-12-14 | 北京航空航天大学 | A low power consumption permanent magnet bias hybrid radial magnetic bearing |
| CN101482144A (en) * | 2009-01-20 | 2009-07-15 | 武汉理工大学 | Magnetic field coupling-eliminating magnetic bearing and manufacturing method thereof |
| CN101886670A (en) * | 2010-07-13 | 2010-11-17 | 清华大学 | Radial magnetic bearing with independent electromagnet structure |
| CN207111712U (en) * | 2017-08-29 | 2018-03-16 | 南京磁谷科技有限公司 | A kind of monoblock type radial direction magnetic bearing magnetic pole with magnetic bridge |
-
2017
- 2017-08-29 CN CN201710755171.9A patent/CN107327485A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114960A (en) * | 1973-01-18 | 1978-09-19 | Societe Europeenne De Propulsion | Radial displacement detector device for a magnetic bearing |
| JPS5834226A (en) * | 1981-08-21 | 1983-02-28 | Seiko Instr & Electronics Ltd | Electromagnet for magnetic bearing and its manufacturing method |
| JPS59122426U (en) * | 1983-02-04 | 1984-08-17 | 株式会社安川電機 | Split core holding device |
| JPH07301235A (en) * | 1994-05-06 | 1995-11-14 | Daikin Ind Ltd | Magnetic pole structure of magnetic bearing |
| KR0152975B1 (en) * | 1994-12-07 | 1998-12-01 | 한동철 | Magnetic bearing and manufacturing process |
| JP2001041239A (en) * | 1999-07-28 | 2001-02-13 | Seiko Seiki Co Ltd | Magnetic bearing device |
| CN1707127A (en) * | 2004-12-30 | 2005-12-14 | 北京航空航天大学 | A low power consumption permanent magnet bias hybrid radial magnetic bearing |
| CN101482144A (en) * | 2009-01-20 | 2009-07-15 | 武汉理工大学 | Magnetic field coupling-eliminating magnetic bearing and manufacturing method thereof |
| CN101886670A (en) * | 2010-07-13 | 2010-11-17 | 清华大学 | Radial magnetic bearing with independent electromagnet structure |
| CN207111712U (en) * | 2017-08-29 | 2018-03-16 | 南京磁谷科技有限公司 | A kind of monoblock type radial direction magnetic bearing magnetic pole with magnetic bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4201462A1 (en) | Proportional flow valve | |
| CN207111712U (en) | A kind of monoblock type radial direction magnetic bearing magnetic pole with magnetic bridge | |
| CN107327485A (en) | A kind of monoblock type radial direction magnetic bearing magnetic pole of band every magnetic bridge | |
| CN202091454U (en) | Ultraprecise air flotation lead screw structure | |
| CN104455652B (en) | Discharging type magnetic valve | |
| CN204131258U (en) | A kind of permanent magnetic servo motor rotor dynamic balancing mud fixed form | |
| CN203348634U (en) | Moving coil two-stage slide valve type flow control electro-hydraulic servo valve | |
| US20230155429A1 (en) | Stator core, magnetic levitation bearing, and motor | |
| CN207961272U (en) | A kind of magnetic suspension bearing rotor and magnetic suspension rotor system | |
| CN202906591U (en) | Fan-shaped magnetic pole used in motor | |
| CN100406760C (en) | A design method of permanent magnetic bias axial magnetic bearing | |
| CN107070127A (en) | Rotor guider is used in the assembling of internal rotor traction machine | |
| CN203250611U (en) | Electromagnet buckle point structure | |
| CN209249231U (en) | A kind of high-performance aluminum nickel cobalt permanent magnetism magnetic assembly | |
| CN207212945U (en) | A kind of crossed roller bearing connected with locating snap ring | |
| CN209545263U (en) | A kind of yoke assembly | |
| CN204934291U (en) | A kind of integral type punch press turret | |
| CN202274012U (en) | Electromagnetic clutch | |
| CN204558180U (en) | Novel combination type high-speed electro-magnet iron core | |
| CN201902363U (en) | Angle adjusting and aligning device for blade of axial-flow pump | |
| CN209118865U (en) | The magnet structure that magnetic is combined in non-stop layer hole | |
| CN216216139U (en) | Permanent magnet synchronous motor rotor assembly | |
| CN211687893U (en) | Electromagnetic crane | |
| CN203466634U (en) | Motor stator core | |
| CN202309462U (en) | Outer rotor assembly device of DC brushless motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171107 |