CN110285142A - The thrust magnetic suspension bearing of semi-open type - Google Patents
The thrust magnetic suspension bearing of semi-open type Download PDFInfo
- Publication number
- CN110285142A CN110285142A CN201910482868.2A CN201910482868A CN110285142A CN 110285142 A CN110285142 A CN 110285142A CN 201910482868 A CN201910482868 A CN 201910482868A CN 110285142 A CN110285142 A CN 110285142A
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- CN
- China
- Prior art keywords
- magnetic pole
- pole
- magnetic
- semi
- open type
- 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
- F16C32/0408—Passive magnetic bearings
- F16C32/041—Passive magnetic bearings with permanent magnets on one part attracting the other part
- F16C32/0412—Passive magnetic bearings with permanent magnets on one part attracting the other part for radial load mainly
Abstract
The invention discloses a kind of thrust magnetic suspension bearings of semi-open type, the bearing includes first to third magnet ring, wherein, first is stacked to third magnet ring annular, form annular magnetic pole, and the magnetic pole of each magnet ring is different from the magnetic pole of adjacent magnet ring, and the first winding and the second winding of annular magnetic pole carry out coiling according to default semi-open type mode, wherein, the lower part indent of consequent pole, the winding space for meeting preset condition is generated, and magnetic pole extension is carried out to the magnetic pole of upper end, forms the magnetic pole of whole circle after being spliced.The bearing remain substantially it is half-open after axial thrust magnetic bearing magnetic pole on magnetic field strength it is continuous consistent, can be used in high-speed rotating machine, and more flexible mounting means can be obtained, for large rotating machinery equipment.
Description
Technical field
The present invention relates to high-speed rotating machine technical field, in particular to the thrust magnetic suspension bearing of a kind of semi-open type.
Background technique
The bearing of large high-speed rotating machinery is often designed to the structure of semi-open type, the rotor of especially horizontal arrangement, half
The largest benefit of open architecture is exactly to be easily installed and overhaul.For magnetic suspension bearing, radial direction magnetic bearing is easy to be made into half
Open architecture, and the bearing of axial thrust, then due to keep the continuity and consistency of magnetic circuit on axial circular annular magnetic pole
Otherwise problem can generate huge eddy current effect and form shaft " brake " effect, so far never design very well
With high speed practical value semi-open type structure design.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, it is an object of the invention to propose a kind of thrust magnetic suspension bearing of semi-open type.
In order to achieve the above objectives, the invention proposes the thrust magnetic suspension bearing of semi-open type, including first to third magnet ring,
Wherein, it described first is stacked to third magnet ring annular, forms annular magnetic pole, and the magnetic pole of each magnet ring and adjacent magnet ring
Magnetic pole is different, and the first winding of the annular magnetic pole and the second winding carry out coiling according to default semi-open type mode, wherein
The lower part indent of consequent pole generates the winding space for meeting preset condition, and carries out magnetic pole extension to the magnetic pole of upper end, obtains
The magnetic pole of whole circle is formed after splicing.
The thrust magnetic suspension bearing of the semi-open type of the embodiment of the present invention, by using the structure of three magnet rings, using inside and outside
The magnetic induction intensity of intermediate ring magnetic pole, Yi Jizeng are suitably sacrificed in the direction of the winding current opposite design after progress semi-open type design
Add the mode of pole shoe to carry out the smooth of magnetic field, thus obtains a kind of semi-open type thrust magnetic that can effectively solve the problem that magnetic circuit continuous problem
Suspension bearing design scheme so that retain substantially it is half-open after axial thrust magnetic bearing magnetic pole on magnetic field strength continuous one
It causes.
In addition, the thrust magnetic suspension bearing of semi-open type according to the above embodiment of the present invention can also have it is following additional
Technical characteristic:
Further, in one embodiment of the invention, the polarity row of the magnetic pole from inside to outside of the annular magnetic pole
Column are respectively NSN.
Further, in one embodiment of the invention, the polarity row of the magnetic pole from inside to outside of the annular magnetic pole
Column are respectively SNS.
Further, in one embodiment of the invention, bottom indent at the consequent pole half-open connection, and retain
Pole shoe.
Further, in one embodiment of the invention, the consequent pole and pole shoe shape meet preset condition, with
The fringe magnetic field of the uniform consequent pole and neutral magnetic field.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the thrust magnetic bearing structure schematic diagram according to the semi-open type of the embodiment of the present invention, wherein 100 be the
One magnet ring, 200 be the second magnet ring, and 300 be third magnet ring, and 400 be coil windings.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The thrust magnetic suspension bearing of the semi-open type proposed according to embodiments of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the thrust magnetic bearing structure schematic diagram of the semi-open type of one embodiment of the invention.
As shown in Figure 1, the thrust magnetic suspension bearing 10 of the semi-open type includes: the first magnet ring 100, the second magnet ring 200 and
Three magnet rings 300, wherein first to third magnet ring annular is stacked, formed annular magnetic pole, and the magnetic pole of each magnet ring with it is adjacent
The magnetic pole of magnet ring is different, and the first winding of annular magnetic pole and the second winding carry out coiling according to default semi-open type mode,
In, the lower part indent of consequent pole generates the winding space for meeting preset condition, and carries out magnetic pole extension to the magnetic pole of upper end,
The magnetic pole of whole circle is formed after being spliced.The thrust magnetic suspension bearing 10 of the embodiment of the present invention can obtain more flexible installation
Mode, for large rotating machinery equipment.
It is understood that in attached drawing of the embodiment of the present invention first to the sequence of third magnet ring be example, herein not
Do specific order restriction.
Optionally, in one embodiment of the invention, the polar alignment difference of the magnetic pole from inside to outside of annular magnetic pole
Polar alignment for NSN or the magnetic pole from inside to outside of annular magnetic pole is respectively SNS.
The embodiment of the present invention can be according to the half of the half-open magnet ring composition that pole polarity NSN from inside to outside or SNS mode are arranged
Open axial thrust bearing.
Further, in one embodiment of the invention, bottom indent at consequent pole half-open connection, and retain pole
Boots.
Specifically, the embodiment of the present invention carries out coiling winding 400, bottom at half-open connection centered on consequent pole
Portion's indent, and retain pole shoe, to reduce the uneven of magnetic induction intensity, keep magnetic field continuous on an annulus.
Further, in one embodiment of the invention, consequent pole and pole shoe shape meet preset condition, with uniform
The fringe magnetic field of consequent pole and neutral magnetic field.
Specifically, consequent pole can suitably increase, pole shoe shape can also carry out design appropriate, to keep intermediate
Pole edge and intermediate magnetic field are as uniform as possible.Wherein, for the ease of the assembly of winding, pole shoe can be with post-production fit on
It goes, it can also be with the mounting means of the Design assistant two half-open smooth connections of magnetic bearing in structure.
To sum up, thrust magnetic bearing is designed to the annular magnetic pole of three rings by the embodiment of the present invention, from inside to outside magnetic pole
Polar alignment is respectively NSN or SNS, and winding is also divided into two groups of inner ring and outer ring.It, will in order to be made into the thrust bearing of half-open mode
The mode of windings section as illustrated carries out coiling, wherein and the lower part of consequent pole wants indent and reserves enough winding spaces,
Upper end passes through the same magnetic pole of similar pole shoe and extends, and keeps continuous in structure, and the magnetic pole of whole circle is formed after guarantee splicing
On, magnetic field is consistent and continuously in one week.
The thrust magnetic suspension bearing of the semi-open type proposed according to embodiments of the present invention, by using the structure of three magnet rings,
Using the opposite design of inner-outer coil current direction, the magnetic induction that intermediate ring magnetic pole is suitably sacrificed after progress semi-open type design is strong
Thus degree, and increase the mode of pole shoe and carry out the smooth of magnetic field obtains a kind of can effectively solve the problem that the half of magnetic circuit continuous problem
Open type thrust magnetic suspension bearing design scheme so that retain substantially it is half-open after axial thrust magnetic bearing magnetic pole on magnetic field strength
It is continuous consistent.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (5)
1. a kind of thrust magnetic suspension bearing of semi-open type, which is characterized in that including first to third magnet ring, wherein
Described first is stacked to third magnet ring annular, forms annular magnetic pole, and the magnetic pole of each magnet ring and adjacent magnet ring
Magnetic pole is different, and the first winding of the annular magnetic pole and the second winding carry out coiling according to default semi-open type mode, wherein
The lower part indent of consequent pole generates the winding space for meeting preset condition, and carries out magnetic pole extension to the magnetic pole of upper end, obtains
The magnetic pole of whole circle is formed after splicing.
2. the thrust magnetic suspension bearing of semi-open type according to claim 1, which is characterized in that the annular magnetic pole from interior
Polar alignment to outer magnetic pole is respectively NSN.
3. the thrust magnetic suspension bearing of semi-open type according to claim 1, which is characterized in that the annular magnetic pole from interior
Polar alignment to outer magnetic pole is respectively SNS.
4. the thrust magnetic suspension bearing of semi-open type according to claim 1, which is characterized in that the half-open company of consequent pole
Place's bottom indent is connect, and retains pole shoe.
5. the thrust magnetic suspension bearing of semi-open type according to claim 1, which is characterized in that the consequent pole and pole shoe
Shape meets preset condition, with the fringe magnetic field of the uniform consequent pole and neutral magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910482868.2A CN110285142A (en) | 2019-06-04 | 2019-06-04 | The thrust magnetic suspension bearing of semi-open type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910482868.2A CN110285142A (en) | 2019-06-04 | 2019-06-04 | The thrust magnetic suspension bearing of semi-open type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110285142A true CN110285142A (en) | 2019-09-27 |
Family
ID=68003223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910482868.2A Pending CN110285142A (en) | 2019-06-04 | 2019-06-04 | The thrust magnetic suspension bearing of semi-open type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110285142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623319A (en) * | 2021-07-08 | 2021-11-09 | 安徽华驰动能科技有限公司 | Magnetic suspension bearing with safety braking protection function |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471105A (en) * | 1992-09-25 | 1995-11-28 | Magnetic Bearing Technologies, Inc. | Null flux magnetic bearing with cross-connected loop portions |
| CN101054997A (en) * | 2007-04-26 | 2007-10-17 | 北京航空航天大学 | Permanent-magnetic biased axial magnetic bearing |
| US20110016376A1 (en) * | 2009-07-16 | 2011-01-20 | David Hinson | Web Page Hot Spots |
| CN102392852A (en) * | 2011-11-03 | 2012-03-28 | 贾新涛 | Axial magnetic bearing |
| CN102414463A (en) * | 2009-04-23 | 2012-04-11 | 皇家飞利浦电子股份有限公司 | A magnetic bearing, a rotary stage, and a reflective electron beam lithography apparatus |
| US20150354627A1 (en) * | 2014-06-10 | 2015-12-10 | Skf Magnetic Mechatronics | Active magnetic bearing coils rolled in series |
| CN205533760U (en) * | 2016-02-18 | 2016-08-31 | 徐工集团工程机械有限公司 | A footstep bearing for cone crusher |
| EP3049682B1 (en) * | 2013-12-30 | 2019-03-06 | Siemens Aktiengesellschaft | Split axial magnetic bearing for the mounting of a rotor of a thermal turbomachine |
| CN109681525A (en) * | 2018-12-10 | 2019-04-26 | 南京磁之汇电机有限公司 | Magnetic suspension bearing and motor |
-
2019
- 2019-06-04 CN CN201910482868.2A patent/CN110285142A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471105A (en) * | 1992-09-25 | 1995-11-28 | Magnetic Bearing Technologies, Inc. | Null flux magnetic bearing with cross-connected loop portions |
| CN101054997A (en) * | 2007-04-26 | 2007-10-17 | 北京航空航天大学 | Permanent-magnetic biased axial magnetic bearing |
| CN102414463A (en) * | 2009-04-23 | 2012-04-11 | 皇家飞利浦电子股份有限公司 | A magnetic bearing, a rotary stage, and a reflective electron beam lithography apparatus |
| US20110016376A1 (en) * | 2009-07-16 | 2011-01-20 | David Hinson | Web Page Hot Spots |
| CN102392852A (en) * | 2011-11-03 | 2012-03-28 | 贾新涛 | Axial magnetic bearing |
| EP3049682B1 (en) * | 2013-12-30 | 2019-03-06 | Siemens Aktiengesellschaft | Split axial magnetic bearing for the mounting of a rotor of a thermal turbomachine |
| US20150354627A1 (en) * | 2014-06-10 | 2015-12-10 | Skf Magnetic Mechatronics | Active magnetic bearing coils rolled in series |
| CN205533760U (en) * | 2016-02-18 | 2016-08-31 | 徐工集团工程机械有限公司 | A footstep bearing for cone crusher |
| CN109681525A (en) * | 2018-12-10 | 2019-04-26 | 南京磁之汇电机有限公司 | Magnetic suspension bearing and motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623319A (en) * | 2021-07-08 | 2021-11-09 | 安徽华驰动能科技有限公司 | Magnetic suspension bearing with safety braking protection function |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190927 |