CN107588111A - A kind of thrust disc structure of magnetic suspension rotor - Google Patents
A kind of thrust disc structure of magnetic suspension rotor Download PDFInfo
- Publication number
- CN107588111A CN107588111A CN201711030643.0A CN201711030643A CN107588111A CN 107588111 A CN107588111 A CN 107588111A CN 201711030643 A CN201711030643 A CN 201711030643A CN 107588111 A CN107588111 A CN 107588111A
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- CN
- China
- Prior art keywords
- bar portion
- top bar
- thrust disc
- stepped down
- down part
- 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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Abstract
The invention discloses a kind of thrust disc structure of magnetic suspension rotor, including a body, top bar portion and stepped down part are respectively equipped with the upper and lower ends face of the body, top bar portion and stepped down part are coaxially disposed with body, it is provided with axis hole on the axis direction of body, the axis hole is through top bar portion and stepped down part；The diameter in the top bar portion and the diameter of stepped down part are equal；The thickness of the body is 1~2 times of top bar portion thickness.The present invention only relies on the assembling that interference fit realizes thrust disc without extra thrust disc attachment structure；The effective buckling deformation for reducing thrust disc, by the Bit andits control of axial direction in rational scope.
Description
Technical field：
The present invention relates to a kind of thrust disc structure of magnetic suspension rotor.
Background technology：
In magnetic suspension rotor system, rotor propulsion disc is an indispensable part, by with thrust magnetic bearing effect pair
Rotor axial enters row constraint.It is main following two including two kinds in existing magnetic suspension：
1) thrust disc profile is close to uniform thickness Thin Disk (Fig. 1)：When on-line velocity is higher, for the thrust disc of the structure, by
It is limited in thrust disc and axle mating surface, in order that thrust disc still keeps tight fit with rotor, then need to increase initial interference, or
Fixed indirectly by other cover parts on axle.And increasing initial interference means that assembling is more difficult, with other sets on axle
Class part, which is connected, to be intended to be threaded hole or other structures.
2) T-shaped thrust disc (Fig. 2)：For the thrust disc of this kind of structure, mating surface effectively increases, but " L " type in Fig. 2
Section at high speed, can make thrust disc outer ring occur warpage.When thrust disc key dimension is larger, buckling deformation amount meeting
Have influence on thrust magnetic bearing normal work.Thrust disc at high speed, the centrifugal force because suffered by, diametrically can be deformed outwards, such as
Fruit uses T-shaped thrust disc, will also produce the displacement component of an axial direction, i.e. resultant displacement reaction is upturned (dotted line in Fig. 2
It is shown).Radial deformation is inevitable, except having been influenceed for thrust disc material limits, does not influence thrust magnetic bearing
Normal work, but excessive axial deformation can then influence the normal work of thrust magnetic bearing, so the deflection of axial direction needs
Control.
The content of the invention：
The present invention is to provide a kind of thrust disc knot of magnetic suspension rotor to solve the above-mentioned problems of the prior art
Structure.
The technical solution adopted in the present invention has：A kind of thrust disc structure of magnetic suspension rotor, including a body, the body
Upper and lower ends face on be respectively equipped with top bar portion and stepped down part, top bar portion and stepped down part are coaxially disposed with body,
It is provided with axis hole on the axis direction of body, the axis hole is through top bar portion and stepped down part；
The diameter in the top bar portion and the diameter of stepped down part are equal；
The thickness of the body is 1~2 times of top bar portion thickness.
Further, the thickness in the top bar portion is 1~2 times of stepped down part thickness.
Further, the diameter of the body is 2 times of the diameter in top bar portion.
The present invention has the advantages that：
1) present invention only relies on the assembling that interference fit realizes thrust disc without extra thrust disc attachment structure；
2) buckling deformation of thrust disc is effectively reduced, by the Bit andits control of axial direction in rational scope.
Brief description of the drawings：
Fig. 1 and Fig. 2 is the structure chart of thrust disc in the prior art.
Fig. 3 is thrust disc structure figure of the present invention.
Fig. 4 is thrust disc of the present invention diametrically deflection schematic diagram when by centrifugal force.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 3 and Figure 4, a kind of thrust disc structure of magnetic suspension rotor of the present invention, including a body 1, the body 1
Top bar portion 11 and stepped down part 12 are respectively equipped with upper and lower ends face, top bar portion 11 and stepped down part 12 are same with body 1
Axle is set, and the diameter of the diameter in top bar portion 11 and stepped down part 12 is equal, and the diameter of body 1 is the diameter in top bar portion 11
2 times.
It is provided with axis hole on the axis direction of body 1, the axis hole is through top bar portion 11 and stepped down part 12.
The thickness of body 1 in the present invention is 1~2 times of the thickness of top bar portion 11.The thickness in top bar portion 11 is to leave office
1~2 times of the thickness of rank portion 12.The thickness of top bar portion 11 is the half of the thickness of body 1 in Fig. 3, and the thickness of stepped down part 12 is to appear on the stage
The half of the thickness of rank portion 11.
Such as Fig. 4, using the structure of upper and lower stage portion, it is increased that the deformation of body 1 in the axial direction is limited by stepped down part 12
Quality, therefore axial displacement can control within the acceptable range., will when top bar portion 11 is equal with the thickness of stepped down part 12
There is no axial displacement component.
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)
- A kind of 1. thrust disc structure of magnetic suspension rotor, it is characterised in that：Including a body (1), the upper and lower ends of the body (1) Be respectively equipped with top bar portion (11) and stepped down part (12) on face, top bar portion (11) and stepped down part (12) with body (1) It is coaxially disposed, is provided with axis hole on the axis direction of body (1), the axis hole is through top bar portion (11) and stepped down part (12)；The diameter of the top bar portion (11) and the diameter of stepped down part (12) are equal；The thickness of the body (1) is 1~2 times of top bar portion (11) thickness.
- 2. the thrust disc structure of magnetic suspension rotor as claimed in claim 1, it is characterised in that：The thickness of the top bar portion (11) Degree is 1~2 times of stepped down part (12) thickness.
- 3. the thrust disc structure of magnetic suspension rotor as claimed in claim 1, it is characterised in that：The diameter of the body (1) is 2 times of the diameter in top bar portion (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030643.0A CN107588111A (en) | 2017-10-30 | 2017-10-30 | A kind of thrust disc structure of magnetic suspension rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030643.0A CN107588111A (en) | 2017-10-30 | 2017-10-30 | A kind of thrust disc structure of magnetic suspension rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107588111A true CN107588111A (en) | 2018-01-16 |
Family
ID=61044011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711030643.0A Pending CN107588111A (en) | 2017-10-30 | 2017-10-30 | A kind of thrust disc structure of magnetic suspension rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107588111A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425608A (en) * | 2011-11-23 | 2012-04-25 | 清华大学 | Assembling structure of magnetic suspension bearing rotor and shaft |
| WO2015197750A1 (en) * | 2014-06-27 | 2015-12-30 | Thermodyn Sas | A cooling system for magnetic axial bearing |
| CN106438691A (en) * | 2016-10-13 | 2017-02-22 | 中国人民解放军海军工程大学 | Permanent magnet bias hybrid axial magnetic bearing |
| JP2017040357A (en) * | 2015-08-17 | 2017-02-23 | 財團法人工業技術研究院Ｉｎｄｕｓｔｒｉａｌ Ｔｅｃｈｎｏｌｏｇｙ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ | Magnetic levitation rotor mechanism |
| CN106640964A (en) * | 2016-12-19 | 2017-05-10 | 四川宏华电气有限责任公司 | Method capable of eliminating temperature influence on suspension force of permanent-magnet suspension bearings |
| CN206397930U (en) * | 2016-12-06 | 2017-08-11 | 中国工程物理研究院材料研究所 | A kind of magnetic suspension rotating shaft |
| CN107100932A (en) * | 2017-06-12 | 2017-08-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial magnetic suspension bearing, magnetic suspension system and compressor |
| CN207421159U (en) * | 2017-10-30 | 2018-05-29 | 南京磁谷科技有限公司 | A kind of thrust disc structure of magnetic suspension rotor |
-
2017
- 2017-10-30 CN CN201711030643.0A patent/CN107588111A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425608A (en) * | 2011-11-23 | 2012-04-25 | 清华大学 | Assembling structure of magnetic suspension bearing rotor and shaft |
| WO2015197750A1 (en) * | 2014-06-27 | 2015-12-30 | Thermodyn Sas | A cooling system for magnetic axial bearing |
| JP2017040357A (en) * | 2015-08-17 | 2017-02-23 | 財團法人工業技術研究院Ｉｎｄｕｓｔｒｉａｌ Ｔｅｃｈｎｏｌｏｇｙ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ | Magnetic levitation rotor mechanism |
| CN106438691A (en) * | 2016-10-13 | 2017-02-22 | 中国人民解放军海军工程大学 | Permanent magnet bias hybrid axial magnetic bearing |
| CN206397930U (en) * | 2016-12-06 | 2017-08-11 | 中国工程物理研究院材料研究所 | A kind of magnetic suspension rotating shaft |
| CN106640964A (en) * | 2016-12-19 | 2017-05-10 | 四川宏华电气有限责任公司 | Method capable of eliminating temperature influence on suspension force of permanent-magnet suspension bearings |
| CN107100932A (en) * | 2017-06-12 | 2017-08-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial magnetic suspension bearing, magnetic suspension system and compressor |
| CN207421159U (en) * | 2017-10-30 | 2018-05-29 | 南京磁谷科技有限公司 | A kind of thrust disc structure of magnetic suspension rotor |
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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 |
Application publication date: 20180116 |
|
| WD01 | Invention patent application deemed withdrawn after publication |