CN102852975A - Multilayer series-connected axial magnetic bearing structure - Google Patents
Multilayer series-connected axial magnetic bearing structure Download PDFInfo
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- CN102852975A CN102852975A CN2012103432578A CN201210343257A CN102852975A CN 102852975 A CN102852975 A CN 102852975A CN 2012103432578 A CN2012103432578 A CN 2012103432578A CN 201210343257 A CN201210343257 A CN 201210343257A CN 102852975 A CN102852975 A CN 102852975A
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- magnetic bearing
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- downward
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Abstract
The invention provides a multilayer series-connected axial magnetic bearing structure used for a vertical magnetic bearing system. The multilayer series-connected axial magnetic bearing structure comprises axial magnetic bearings (2 and 4) upward in attraction, axial magnetic bearings (7 and 9) downward in attraction and thrust discs (3, 5, 6 and 8), wherein the magnetic bearings upward in attraction, the axial magnetic bearings downward in attraction and the thrust discs are arranged in series connection. By the axial magnetic bearing structure, the axial bearing capacity of the vertical magnetic bearing system can be improved, and the multilayer series-connected axial magnetic bearing structure is particularly applicable to systems asymmetrical in axial load.
Description
Technical field
The present invention relates to field of bearings, relate in particular to a kind of multilayer series connection axial magnetic bearing structure for the vertical magnetic bearing arrangement.
Background technique
Magnetic suspension bearing is again referred to as magnetic bearing, magnetic bearing be utilize magnetic force between stator and the rotor with rotor suspension in the space, make a kind of novel high-performance bearing that does not have Mechanical Contact between stator and the rotor.Because there be not contacting mechanically in stator and rotor, so the rotor of magnetic bearing can reach very high running rotating speed, and have the advantages such as mechanical wear is little, energy consumption is low, the life-span is long, unlubricated, pollution-free, be particularly suitable at a high speed, vacuum and the super special application such as clean.
At present, the mode that provides according to magnetic force of magnetic bearing is divided into active magnetic bearings system, passive magnetic bearing system and hybrid magnetic bearing system.Wherein, the active magnetic bearings system be utilize controllable magnetic between electromagnet and the ferromagnetic material realize to rotor do not contact supporting system, the active magnetic bearings system comprises radial direction magnetic bearing and axial magnetic bearing, and radial force and axial force are provided respectively.The rotor of some vertical magnetic bearing arrangement is heavier, or the rotor axial load is larger, need larger axial electromagnetic force, yet owing to be subject to the restriction of spatial structure or heat radiation requirement, the magnetic pole area of axial magnetic bearing and coil turn all can not be too large, that is to say that the maximum axial electromagnetic force is restricted.
In addition, also have some magnetic bearing systems, the thrust load of its rotor both direction differs greatly, and therefore requires the axial magnetic of certain direction larger.
Summary of the invention
The technical problem that (one) will solve
The object of the present invention is to provide a kind of multilayer series connection axial magnetic bearing structure that can improve the axial carrying capacity of vertical magnetic bearing arrangement and be applicable to asymmetric thrust load.
(2) technological scheme
For achieving the above object, the invention provides a kind of multilayer series connection axial magnetic bearing structure, this multilayer series connection axial magnetic bearing structure comprises downward axial magnetic bearing and the thrust disc of axial magnetic bearing, suction that suction makes progress, wherein, downward axial magnetic bearing and the thrust disc tandem arrangement of axial magnetic bearing, suction that make progress of suction.
Further, the quantity of described thrust disc equals axial magnetic bearing and the downward axial magnetic bearing quantity sum of suction that suction makes progress.
Further again, the active force of the axial magnetic bearing that the axial magnetic bearing that every layer of suction makes progress and suction are downward all is unidirectional.
Wherein, the downward axial magnetic bearing quantity of the axial magnetic bearing that makes progress of described suction and suction equates or does not wait.
Perhaps, described multilayer is axial magnetic bearing and the downward axial magnetic bearing of one deck suction that two-layer suction makes progress.
Perhaps, described multilayer is axial magnetic bearing and the downward axial magnetic bearing of two-layer suction that two-layer suction makes progress.
(3) beneficial effect
Multilayer provided by the invention series connection axial magnetic bearing structure, the axial magnetic bearing that axial magnetic bearing, the suction that makes progress by suction is downward and the tandem arrangement of thrust disc can reach the effect that improves vertical magnetic bearing arrangement axial carrying capacity.The present invention is particularly useful for the asymmetric magnetic bearing system of thrust load.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of the embodiment of the invention 2.
Among the figure, 1: rotor; 2,4: the axial magnetic bearing that suction makes progress; 7,9: the axial magnetic bearing that suction is downward; 3,5,6,8: thrust disc; 10: the magnetic material.
Embodiment
Be described in further detail below in conjunction with the embodiment of accompanying drawing to multilayer series connection axial magnetic bearing structure of the present invention.These mode of executions only are used for explanation the present invention, and are not limitation of the present invention.
In description of the invention, need to prove, term " " center "; " vertically "; " laterally "; " on "; D score; " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, need to prove that unless clear and definite regulation and restriction are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
In addition, in description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more.
Multilayer series connection axial magnetic bearing structure provided by the invention comprises downward axial magnetic bearing and the thrust disc of axial magnetic bearing, suction that suction makes progress.The active force of the axial magnetic bearing that the axial magnetic bearing that every layer of suction makes progress and suction are downward all is unidirectional; The downward axial magnetic bearing quantity of the axial magnetic bearing that suction makes progress and suction can not wait.
As shown in Figure 1, present embodiment adopts axial magnetic bearing 2 that two-layer suction makes progress, 4 and the downward axial magnetic bearing 7 of one deck suction.Multilayer series connection axial magnetic bearing structure among this embodiment comprises downward axial magnetic bearing 7, the thrust disc 3,5 and 6 of axial magnetic bearing 2 and 4, suction that suction makes progress.Wherein, axial magnetic bearing 2,4 belows that suction makes progress are provided with groove, place magnetic material 10 in the groove, and thrust disc 3,5 lays respectively at the axial magnetic bearing 2 that suction makes progress, 4 below; Downward axial magnetic bearing 7 tops of suction are provided with groove, place magnetic material 10 in the groove, and thrust disc 6 is positioned at the top of the downward axial magnetic bearing of suction 7.
The quantity of described thrust disc equals axial magnetic bearing and the downward axial magnetic bearing quantity sum of suction that suction makes progress.Rotor 1 is connected with thrust disc 3,5 and 6, and the magnetic force by magnetic bearing is suspended in fixing axial position.
Axial magnetic bearing and the downward axial magnetic bearing of one deck suction that present embodiment uses two-layer suction to make progress, this structure is applicable to the overweight vertical magnetic bearing of rotor, and perhaps downward thrust load is greater than the vertical magnetic bearing arrangement of the thrust load that makes progress.
As shown in Figure 2, present embodiment adopts axial magnetic bearing 2 that two-layer suction makes progress, 4 and the downward axial magnetic bearing 7,9 of two-layer suction.Multilayer series connection axial magnetic bearing structure among this embodiment comprises downward axial magnetic bearing 7 and 9, the thrust disc 3,5,6,8 of axial magnetic bearing 2 and 4, suction that suction makes progress.Wherein, axial magnetic bearing 2,4 belows that suction makes progress are provided with groove, place magnetic material 10 in the groove, and thrust disc 3,5 lays respectively at the axial magnetic bearing 2 that suction makes progress, 4 below; Downward axial magnetic bearing 7,9 tops of suction are provided with groove, place magnetic material 10 in the groove, and thrust disc 6,8 lays respectively at the top of the downward axial magnetic bearing of suction 7,9.The quantity of described thrust disc equals axial magnetic bearing and the downward axial magnetic bearing quantity sum of suction that suction makes progress.Rotor 1 is connected with thrust disc 3,5,6 and 8, and the magnetic force by magnetic bearing is suspended in fixing axial position.
The thrust load that axial magnetic bearing and the downward axial magnetic bearing of two-layer suction that present embodiment uses two-layer suction to make progress, this structure are applicable to both direction is very large situation all.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (6)
1. multilayer series connection axial magnetic bearing structure, this multilayer series connection axial magnetic bearing structure comprises the axial magnetic bearing (2 that suction makes progress, 4), the downward axial magnetic bearing (7 of suction, 9) and thrust disc (3,5,6,8), it is characterized in that the axial magnetic bearing that suction makes progress, downward axial magnetic bearing and the thrust disc tandem arrangement of suction.
2. multilayer series connection axial magnetic bearing structure according to claim 1 is characterized in that the quantity of described thrust disc equals axial magnetic bearing and the downward axial magnetic bearing quantity sum of suction that suction makes progress.
3. the described multilayer of any one series connection axial magnetic bearing structure is characterized in that according to claim 1-2, and the active force of the axial magnetic bearing that the axial magnetic bearing that every layer of suction makes progress and suction are downward all is unidirectional.
4. multilayer series connection axial magnetic bearing structure according to claim 3 is characterized in that the downward axial magnetic bearing quantity of the axial magnetic bearing that described suction makes progress and suction equates or do not wait.
5. multilayer series connection axial magnetic bearing structure according to claim 1 is characterized in that described multilayer is axial magnetic bearing and the downward axial magnetic bearing of one deck suction that two-layer suction makes progress.
6. multilayer series connection axial magnetic bearing structure according to claim 1 is characterized in that described multilayer is axial magnetic bearing and the downward axial magnetic bearing of two-layer suction that two-layer suction makes progress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103432578A CN102852975A (en) | 2012-09-14 | 2012-09-14 | Multilayer series-connected axial magnetic bearing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103432578A CN102852975A (en) | 2012-09-14 | 2012-09-14 | Multilayer series-connected axial magnetic bearing structure |
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| CN102852975A true CN102852975A (en) | 2013-01-02 |
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| CN2012103432578A Pending CN102852975A (en) | 2012-09-14 | 2012-09-14 | Multilayer series-connected axial magnetic bearing structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322044A (en) * | 2013-06-08 | 2013-09-25 | 清华大学 | Axial magnetic bearing with annular heat radiation structure |
| CN106438697A (en) * | 2016-11-21 | 2017-02-22 | 南京磁谷科技有限公司 | Axial magnetic bearing structure |
| CN107387562A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of coaxial electromagnet structure of thrust magnetic bearing |
| US10330148B2 (en) | 2014-02-26 | 2019-06-25 | Airbus Helicopters Deutschland GmbH | Bearing arrangement with a first bearing layer and a second bearing layer |
| CN111319000A (en) * | 2020-04-29 | 2020-06-23 | 西峡县飞龙汽车部件有限公司 | Bearing series connection device and use method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0025954A1 (en) * | 1979-09-25 | 1981-04-01 | Siemens Aktiengesellschaft | Magnetic suspension bearing |
| JPS56113825A (en) * | 1980-02-07 | 1981-09-08 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic bearing |
| JPS571832A (en) * | 1980-05-31 | 1982-01-07 | Sumitomo Electric Ind Ltd | Disc brake |
| JPH03153919A (en) * | 1989-11-10 | 1991-07-01 | Murata Mach Ltd | Magnetic bearing |
| WO2009111909A1 (en) * | 2008-03-13 | 2009-09-17 | Wang Yuyen | A vertical pivotal rotary system with a magnetic suspension device |
| CN101764460A (en) * | 2008-10-28 | 2010-06-30 | 卓向东 | Outer roller axial magnetic suspension motor |
-
2012
- 2012-09-14 CN CN2012103432578A patent/CN102852975A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0025954A1 (en) * | 1979-09-25 | 1981-04-01 | Siemens Aktiengesellschaft | Magnetic suspension bearing |
| JPS56113825A (en) * | 1980-02-07 | 1981-09-08 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic bearing |
| JPS571832A (en) * | 1980-05-31 | 1982-01-07 | Sumitomo Electric Ind Ltd | Disc brake |
| JPH03153919A (en) * | 1989-11-10 | 1991-07-01 | Murata Mach Ltd | Magnetic bearing |
| WO2009111909A1 (en) * | 2008-03-13 | 2009-09-17 | Wang Yuyen | A vertical pivotal rotary system with a magnetic suspension device |
| CN101764460A (en) * | 2008-10-28 | 2010-06-30 | 卓向东 | Outer roller axial magnetic suspension motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322044A (en) * | 2013-06-08 | 2013-09-25 | 清华大学 | Axial magnetic bearing with annular heat radiation structure |
| CN103322044B (en) * | 2013-06-08 | 2016-01-20 | 清华大学 | A kind of axial magnetic bearing with annular heat radiation structure |
| US10330148B2 (en) | 2014-02-26 | 2019-06-25 | Airbus Helicopters Deutschland GmbH | Bearing arrangement with a first bearing layer and a second bearing layer |
| CN106438697A (en) * | 2016-11-21 | 2017-02-22 | 南京磁谷科技有限公司 | Axial magnetic bearing structure |
| CN107387562A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of coaxial electromagnet structure of thrust magnetic bearing |
| CN111319000A (en) * | 2020-04-29 | 2020-06-23 | 西峡县飞龙汽车部件有限公司 | Bearing series connection device and use method |
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Application publication date: 20130102 |