CN202451603U - Combined magnetic suspension bearing - Google Patents
Combined magnetic suspension bearing Download PDFInfo
- Publication number
- CN202451603U CN202451603U CN2012200628375U CN201220062837U CN202451603U CN 202451603 U CN202451603 U CN 202451603U CN 2012200628375 U CN2012200628375 U CN 2012200628375U CN 201220062837 U CN201220062837 U CN 201220062837U CN 202451603 U CN202451603 U CN 202451603U
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- magnetic ring
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Abstract
The utility model discloses a combined magnetic suspension bearing which comprises an inner ring and an outer ring which are arranged in a coaxial and inserting mode and matched in a rotary mode. A radial internal magnetic ring is fixed on the outer periphery surface of the inner ring, a radial external magnetic ring is fixed oppositely on the inner wall surface of the outer ring, and an air gap is arranged between the radial internal magnetic ring and the radial external magnetic ring. Two retaining end faces are arranged in the axial direction of the inner ring, annular end caps are oppositely fixed at the two ends of the outer ring respectively, two axial internal magnetic rings are fixed on the two retaining end faces of the inner ring respectively, two axial external magnetic rings are fixed correspondingly on the two annular end caps, and air gaps are arranged between the opposite axial internal magnetic rings and axial external magnetic rings, and the opposite axial internal magnetic rings and axial external magnetic rings are arranged in a mode of 'like charges repel but opposite charges attract'. The combined magnetic suspension bearing has the advantages of compact structure, small size and low cost, and is convenient to mount and adjust, besides, the interchangeability is good, standardized production is available, and the bearing can be widely used in precision machinery or large equipment field of high-speed numerical control machine tools, molecular vortex pumps, turbine engines and the like.
Description
Technical field
The utility model relates to a kind of bearing, and definite saying so relates to a kind of magnetic suspension bearing.
Background technique
Magnetic suspension bearing be utilize the same sex to repel each other, the magnetic force that there is a natural attraction between the sexes is suspended in rotor in the stator; It is compared with traditional mechanical type bearings such as rolling bearing, sliding bearing and joint shaft bearing; There is not Mechanical Contact in magnetic suspension bearing; Thereby have that mechanical wear is little, energy consumption is low, noise is little, the life-span is long, need not to lubricate, advantage such as no oil pollution, be specially adapted in the particular surroundingss such as high speed, vacuum, ultra-clean.
The conventional magnetic levitation bearing mainly contains Active Magnetic Suspending Bearing, passive magnetic suspension bearing and hybrid magnetic suspension bearing; Magnetic field is mainly produced by electromagnet in Active Magnetic Suspending Bearing and the hybrid magnetic suspension bearing; It needs a whole set of monitoring and control system such as supporting sensor installation, controller and final controlling element; Thereby overall structure is comparatively complicated, and cost is higher.And passive magnetic suspension bearing adopts permanent magnet, and its structure is simple relatively, cost is lower.The Chinese patent open file discloses a kind of radial suspension structure of magnetic suspension bearing; It comprises big magnet ring and bead; Big magnet ring is enclosed within the outside of bead; Same polarity is oppositely arranged between big magnet ring and the bead, when receiving footpath outward force effect, can utilize the principle of same-sex repulsion of magnetic force to make big magnet ring and bead keep state of suspension.But this magnetic suspension bearing receiving the axial force effect is, owing to lack the axial limiting structure, make can produce axial float between the large and small magnet ring, thereby this magnetic suspension bearing less stable in use.
The model utility content
The purpose of the utility model is: the high combined magnetic suspension bearing of stability when a kind of the use is provided.
The technological scheme of the utility model is: a kind of combined magnetic suspension bearing; Comprise coaxial sleeve setting and inner ring that is rotatably assorted and outer ring; On the outer circumferential face of inner ring, be fixed with radially internal magnetic ring; Relative fixed has radially outer magnetic ring on the internal face of outer ring; Internal magnetic ring and radially be provided with air gap between the outer magnetic ring radially; Described inner ring has in the axial direction towards two opposite Thrust Faces; Be fixed with the annular end cap that is provided with said inner ring two Thrust Faces relative spacings respectively at the two ends of outer ring; On two Thrust Faces of said inner ring, be fixed with the first axial internal magnetic ring and the second axial internal magnetic ring respectively, and the second axial outer magnetic ring that on the interior edge face of corresponding Thrust Faces, is fixed with the first axial outer magnetic ring that is oppositely arranged with the first axial internal magnetic ring respectively and is oppositely arranged at two annular end caps, between the first axial internal magnetic ring and the first axial outer magnetic ring that is oppositely arranged, be installed with air gap respectively between the second axial internal magnetic ring and the second axial outer magnetic ring and be the same sex the repel each other setting or the setting that is that there is a natural attraction between the sexes with the second axial internal magnetic ring.
Described radially internal magnetic ring and radially outer magnetic ring be contained on inner ring and the outer ring through the corresponding stop collar of axial limiting structure respectively; Described radial-axial limit structure is located at the step surface on the said inside and outside circle for dividing; Described radially internal magnetic ring and radially an end of outer magnetic ring cooperate with corresponding step surface axial limiting block respectively, radially internal magnetic ring and radially the other end of outer magnetic ring fixed by the locking nut axial limiting of corresponding spinning respectively.
The described first axial internal magnetic ring and the second axial internal magnetic ring are inlaid in respectively on the corresponding Thrust Faces of inner ring in the coaxial annular groove of offering, and the said first axial outer magnetic ring and the second axial outer magnetic ring are inlaid in respectively on the corresponding end ring cover in the coaxial annular groove of offering.
To a Thrust Faces that is less than said inner ring, axially convex with the boss that passes corresponding annular end cap endoporus.
Described each magnet ring and its fill up respectively between the relative installation place on inner ring or the outer ring and are provided with the magnetic partiting ring of being processed by NULL.
Described outer ring and one of them annular end cap are wholely set, and another annular end cap passes through screw on the end face of outer ring, thereby makes the outer ring be parallel to L-shaped structure on the cross section of its axis.
Pad is provided with the adjustment pad between the corresponding end face of said another annular end cap and outer ring.
The combined magnetic suspension bearing of the utility model adopts thrust magnetic suspension bearing that two covers are made up of the axial internal magnetic ring of correspondence setting and axial outer magnetic ring and one by internal magnetic ring radially and integrated the forming of entad magnetic suspension bearing formed of outer magnetic ring radially; Being the same sex between two thrust magnetic suspension bearings repels each other and is provided with or is that there is a natural attraction between the sexes is provided with; Make this magnetic suspension bearing can form axial limiting through two thrust magnetic suspension bearings in use; Make it have higher running accuracy, improved the stability of magnetic suspension bearing, this magnetic suspension bearing has compact structure, volume is little, cost is low characteristics; Be convenient to install and adjustment; And interchangeability is good, can standardized production, can be widely used in precision optical machinery or main equipment fields such as high-speed numeric control lathe, grinding machine, centrifugal compressor, molecular eddy current pump, steam turbine engine.
Description of drawings
Fig. 1 is the structural representation of the utility model combined magnetic suspension bearing specific embodiment.
Embodiment
The combined magnetic suspension bearing of the utility model mainly by two thrust magnetic suspension bearings and one entad magnetic suspension bearing combine.Its specific embodiment is as shown in Figure 1; Inner ring 6 and outer ring 1 that this magnetic suspension bearing contains coaxial sleeve setting and is rotatably assorted; On the outer circumferential face of inner ring 6, be axially arranged with the limit dais terrace; On inner ring 6, to stop collar radially internal magnetic ring 8 is housed through this limited step over glaze, this is an end and this spacing cooperation of limit dais terrace block of internal magnetic ring 8 radially, and the other end is fixed by the locking nut 3 of spinning on inner ring 6 outer circumferential faces; Limited step over glaze through the correspondence setting on the inwall of outer ring 1 is to the spacing radially outer magnetic ring 2 that is fixed with radially internal magnetic ring 8 relative engagement that are with inner ring 6; This is an end and corresponding step surface limit block cooperation of outer magnetic ring 2 radially; The other end is locked by the locking nut 15 of corresponding spinning on 2 inwalls of outer ring, at internal magnetic ring 7 radially and radially be provided with air gap between the outer magnetic ring 2 and form entad magnetic suspension bearing.Between the mounting point on the inner ring 6, be provided with first magnetic partiting ring 7 radially at internal magnetic ring 8 radially and its; Between the mounting point of outer ring 1, be provided with second magnetic partiting ring 17 radially at outer magnetic ring 2 radially and its; Utilize magnetic partiting ring can reduce radially internal magnetic ring 8 and the radially diffusion of outer magnetic ring 2; Make radially internal magnetic ring 8 and radially between the outer magnetic ring 2 magnetic line of force more concentrated, thereby improve radially internal magnetic ring 8 and the radially active force between the outer magnetic ring 2.
The two ends of inner ring 6 also have in the axial direction towards two opposite Thrust Faces; On two Thrust Faces, be embedded with the first axial internal magnetic ring 18 and the second axial internal magnetic ring 19 respectively through the coaxial annular groove of offering of correspondence; 1 axial two ends are fixed with the annular end cap that is provided with inner ring 6 two ends Thrust Faces relative spacings respectively in the outer ring; On the interior edge face of inner ring 6 corresponding Thrust Faces, be fixed with the second axial outer magnetic ring 13 that first axial outer magnetic ring 5, the second axial internal magnetic ring 19 that is oppositely arranged with the first axial internal magnetic ring 18 is oppositely arranged respectively at two annular end caps; The first axial internal magnetic ring 18 and the first axial outer magnetic ring 5 are formed the first thrust magnetic suspension bearing, and the second axial internal magnetic ring 19 and the second axial outer magnetic ring 13 are formed the second thrust magnetic suspension bearing.For improving the active force between the two thrust magnetic suspension bearings; Between the first axial internal magnetic ring 18 and the second axial internal magnetic ring 19 and its annular groove on inner ring 6 corresponding Thrust Faces respectively pad be provided with by first axially in magnetic partiting ring 9 with second axially in magnetic partiting ring 16, between the annular groove on the first axial outer magnetic ring 5 and the second axial outer magnetic ring 13 and the corresponding annular end cap, fill up respectively be provided with first axial outside magnetic partiting ring 4 and second axial outside magnetic partiting ring 12.
In the present embodiment; Each magnetic partiting ring all adopts NULL to process to be groove structure; Each magnet ring all is inlaid in the annular groove of corresponding magnetic partiting ring; Between the first axial internal magnetic ring 18 and the first axial outer magnetic ring 5 that is oppositely arranged, be installed with air gap respectively between the second axial internal magnetic ring 19 and the second axial outer magnetic ring 13 and be the same sex setting that repels each other, it can be also that there is a natural attraction between the sexes is provided with in concrete the application, thereby in the axial direction that inner ring is spacing in the outer ring; In addition, in the present embodiment, inner ring 6, outer ring 1 and each end cap all adopt no magnetic or non-ferromagnetic material manufacturing, like 7Mn15Cr2Al3V2WMo, 25Cr18Ni10WN, 70Mn18Cr4V2WMoV or pottery etc., to reduce its influence to each magnet ring; And; One of them annular end cap and outer ring 1 are wholely set; Thereby make outer ring 1 be parallel to L-shaped structure on the cross section of bearing axis; And on inner ring 6 Thrust Faces relative, axially convexing with the annular boss 60 that stretches into this annular end cap endoporus with this annular end cap, another annular end cap 14 is fixedly connected with outer ring 1 through screw 10, and between the corresponding end face of this annular end cap 14 and outer ring 1, is provided with and adjusts pad 11; Quantity or thickness through adjusting this adjustment pad can be adjusted the gap between each corresponding axially interior outer magnetic ring in the two thrust magnetic suspension bearings, thereby adjust the axial force between the two thrust magnetic suspension bearings.
The utility model with two thrust magnetic suspension bearings and one entad magnetic suspension bearing be combined into an integral body; Little, the compact structure of its volume; Thereby inner ring and outer ring all are suspended in the outer ring by the same sex spacing inner ring that makes of magnet ring that is provided with that repels each other on radial and axial, make this combined magnetic suspension bearing have higher running accuracy.
Claims (7)
1. combined magnetic suspension bearing; Comprise coaxial sleeve setting and inner ring that is rotatably assorted and outer ring; On the outer circumferential face of inner ring, be fixed with radially internal magnetic ring; Relative fixed has radially outer magnetic ring on the internal face of outer ring; Internal magnetic ring and radially be provided with air gap between the outer magnetic ring radially; It is characterized in that; Described inner ring has in the axial direction towards two opposite Thrust Faces, is fixed with the annular end cap that is provided with said inner ring two Thrust Faces relative spacings respectively at the two ends of outer ring, on two Thrust Faces of said inner ring, is fixed with the first axial internal magnetic ring and the second axial internal magnetic ring respectively; And the second axial outer magnetic ring that on the interior edge face of corresponding Thrust Faces, is fixed with the first axial outer magnetic ring that is oppositely arranged with the first axial internal magnetic ring respectively and is oppositely arranged with the second axial internal magnetic ring at two annular end caps, between the first axial internal magnetic ring and the first axial outer magnetic ring that is oppositely arranged, be installed with air gap respectively between the second axial internal magnetic ring and the second axial outer magnetic ring and be the same sex the repel each other setting or the setting that is that there is a natural attraction between the sexes.
2. combined magnetic suspension bearing according to claim 1; It is characterized in that; Described radially internal magnetic ring and radially outer magnetic ring be contained on inner ring and the outer ring through the corresponding stop collar of axial limiting structure respectively; Described radial-axial limit structure is located at the step surface on the said inside and outside circle for dividing; Described radially internal magnetic ring and radially an end of outer magnetic ring cooperate with corresponding step surface axial limiting block respectively, radially internal magnetic ring and radially the other end of outer magnetic ring fixed by the locking nut axial limiting of corresponding spinning respectively.
3. combined magnetic suspension bearing according to claim 1; It is characterized in that; The described first axial internal magnetic ring and the second axial internal magnetic ring are inlaid in respectively on the corresponding Thrust Faces of inner ring in the coaxial annular groove of offering, and the said first axial outer magnetic ring and the second axial outer magnetic ring are inlaid in respectively on the corresponding end ring cover in the coaxial annular groove of offering.
4. combined magnetic suspension bearing according to claim 1 is characterized in that, to a Thrust Faces that is less than said inner ring, axially convexes with the boss that passes corresponding annular end cap endoporus.
5. according to claim 1 or 2 or 3 described combined magnetic suspension bearings, it is characterized in that described each magnet ring and its fill up respectively and be provided with the magnetic partiting ring of being processed by NULL between the relative installation place on inner ring or the outer ring.
6. combined magnetic suspension bearing according to claim 5; It is characterized in that; Described outer ring and one of them annular end cap are wholely set, and another annular end cap passes through screw on the end face of outer ring, thereby makes the outer ring be parallel to L-shaped structure on the cross section of its axis.
7. combined magnetic suspension bearing according to claim 6 is characterized in that, pad is provided with the adjustment pad between the corresponding end face of said another annular end cap and outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200628375U CN202451603U (en) | 2012-02-24 | 2012-02-24 | Combined magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200628375U CN202451603U (en) | 2012-02-24 | 2012-02-24 | Combined magnetic suspension bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451603U true CN202451603U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200628375U Expired - Lifetime CN202451603U (en) | 2012-02-24 | 2012-02-24 | Combined magnetic suspension bearing |
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| CN (1) | CN202451603U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104602A (en) * | 2012-12-11 | 2013-05-15 | 吴江兰瑞特纺织品有限公司 | Anti-flying suspension roll shaft |
| CN103697062A (en) * | 2013-12-12 | 2014-04-02 | 洛阳轴研科技股份有限公司 | Precise integrated magnetic floating bearing |
| WO2015035871A1 (en) * | 2013-09-13 | 2015-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing and centrifugal compressor |
| CN105840430A (en) * | 2016-06-01 | 2016-08-10 | 河南理工大学 | Small vertical shaft magnetic suspension wind driven generator |
| CN106979226A (en) * | 2017-04-25 | 2017-07-25 | 陕西科技大学 | A kind of combined magnetic suspension bearing |
| WO2017157107A1 (en) * | 2016-03-16 | 2017-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial magnetic levitation bearing |
| WO2017166911A1 (en) * | 2016-03-31 | 2017-10-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic levitation bearing assembly and compressor |
| CN107646078A (en) * | 2015-05-21 | 2018-01-30 | 蒂森克虏伯罗特艾德有限公司 | Radial-axial magnetic bearing with integral type bearing support and the method for operating the magnetic bearing |
| CN108443321A (en) * | 2018-05-08 | 2018-08-24 | 山东锋钢机械设备有限公司 | A kind of permanent magnetism type magnetic suspension bearing pair |
| CN109058296A (en) * | 2018-10-09 | 2018-12-21 | 珠海格力电器股份有限公司 | Stator module and the hybrid magnetic-suspension axial bearing arrangement of suction and repulsion |
| CN109340258A (en) * | 2018-11-21 | 2019-02-15 | 珠海格力电器股份有限公司 | A kind of electrically driven, magnetically levitated bearing arrangement of novel permanent magnetic |
| CN110056574A (en) * | 2019-04-17 | 2019-07-26 | 山东天瑞重工有限公司 | A kind of magnetic bearing of high speed magnetic suspension motor |
| CN112303120A (en) * | 2020-10-21 | 2021-02-02 | 驻马店职业技术学院 | Permanent magnet bearing for electric automobile |
-
2012
- 2012-02-24 CN CN2012200628375U patent/CN202451603U/en not_active Expired - Lifetime
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104602A (en) * | 2012-12-11 | 2013-05-15 | 吴江兰瑞特纺织品有限公司 | Anti-flying suspension roll shaft |
| WO2015035871A1 (en) * | 2013-09-13 | 2015-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing and centrifugal compressor |
| US10190628B2 (en) | 2013-09-13 | 2019-01-29 | Green Refrigeration Equipment Engineering Research Center Of Zhuhai Gree Co., Ltd. | Magnetic bearing and centrifugal compressor |
| CN103697062A (en) * | 2013-12-12 | 2014-04-02 | 洛阳轴研科技股份有限公司 | Precise integrated magnetic floating bearing |
| CN103697062B (en) * | 2013-12-12 | 2017-01-18 | 洛阳轴研科技股份有限公司 | Precise integrated magnetic floating bearing |
| US10578157B2 (en) | 2015-05-21 | 2020-03-03 | Thyssenkrupp Rothe Erde Gmbh | Radial-axial magnetic bearing having an integrated back-up bearing and method for operating the magnetic bearing |
| CN107646078A (en) * | 2015-05-21 | 2018-01-30 | 蒂森克虏伯罗特艾德有限公司 | Radial-axial magnetic bearing with integral type bearing support and the method for operating the magnetic bearing |
| CN107646078B (en) * | 2015-05-21 | 2020-01-17 | 蒂森克虏伯罗特艾德有限公司 | Radial-axial magnetic bearing with integrated support bearing and method for operating the same |
| US10690184B2 (en) | 2016-03-16 | 2020-06-23 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Axial magnetic bearing having a protective device |
| WO2017157107A1 (en) * | 2016-03-16 | 2017-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial magnetic levitation bearing |
| US10767692B2 (en) | 2016-03-31 | 2020-09-08 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Magnetic levitation bearing assembly and compressor |
| WO2017166911A1 (en) * | 2016-03-31 | 2017-10-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic levitation bearing assembly and compressor |
| CN105840430A (en) * | 2016-06-01 | 2016-08-10 | 河南理工大学 | Small vertical shaft magnetic suspension wind driven generator |
| CN106979226A (en) * | 2017-04-25 | 2017-07-25 | 陕西科技大学 | A kind of combined magnetic suspension bearing |
| CN106979226B (en) * | 2017-04-25 | 2023-04-18 | 陕西科技大学 | Combined magnetic suspension bearing |
| CN108443321A (en) * | 2018-05-08 | 2018-08-24 | 山东锋钢机械设备有限公司 | A kind of permanent magnetism type magnetic suspension bearing pair |
| CN109058296A (en) * | 2018-10-09 | 2018-12-21 | 珠海格力电器股份有限公司 | Stator module and the hybrid magnetic-suspension axial bearing arrangement of suction and repulsion |
| CN109058296B (en) * | 2018-10-09 | 2024-03-05 | 珠海格力电器股份有限公司 | Stator assembly and repulsive force combined magnetic suspension axial bearing structure |
| CN109340258A (en) * | 2018-11-21 | 2019-02-15 | 珠海格力电器股份有限公司 | A kind of electrically driven, magnetically levitated bearing arrangement of novel permanent magnetic |
| CN110056574A (en) * | 2019-04-17 | 2019-07-26 | 山东天瑞重工有限公司 | A kind of magnetic bearing of high speed magnetic suspension motor |
| CN112303120A (en) * | 2020-10-21 | 2021-02-02 | 驻马店职业技术学院 | Permanent magnet bearing for electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180717 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |