CN2447583Y - Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling - Google Patents
Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling Download PDFInfo
- Publication number
- CN2447583Y CN2447583Y CN 00225901 CN00225901U CN2447583Y CN 2447583 Y CN2447583 Y CN 2447583Y CN 00225901 CN00225901 CN 00225901 CN 00225901 U CN00225901 U CN 00225901U CN 2447583 Y CN2447583 Y CN 2447583Y
- Authority
- CN
- China
- Prior art keywords
- pole shoe
- transmission shaft
- vacuum equipment
- cooling
- magnetic fluid
- 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.)
- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a magnetic fluid sealing device with forced cooling function for a driving shaft of a vacuum device, composed of a driving shaft, a supporting shell body, a pole shoe, a permanent magnet, etc. The utility model is characterized in that an annular cooling channel which surrounds the driving shaft and communicates with a cooling source is formed by a hollow joint and a through hole which are matched with a cooling channel arranged on the pole shoe, wherein, the hollow joint and the through hole are arranged on the supporting shell body, and the pole shoe is used for forming a magnetic core assembly. The utility model can be used for sealing under high-heat condition produced by the high-speed rotation of the driving shaft, or under high-temperature operational environment, and can smoothly and reliably keep sealing performance.
Description
The utility model relates to a kind of vacuum equipment transmission shaft device for sealing magnetic fluid that can force cooling, belongs to the magnet fluid sealing member in the sealing component class.
The vacuum equipment of domestic production at present, the sealing of its transmission shaft adopts rubber seal person that it is arranged; Adopt the end face static seal to power up secret sealing cover person it is also arranged.Though the former is simple in structure, cheap, its fatal shortcoming is because wearing out of contact wear that the mutual motion between sealing component and the rotating shaft produces and rubber parts very easily makes seal failure; Though latter's sealing is reliable, but because drive motor places in the seal closure, in fact drive motor is equivalent to be in the vacuum chamber, its unsurmountable shortcoming is the not only possible damage equipment of vacuum discharge phenomenon that electrical conductor produces under certain vacuum degree condition, and the material that electric system discharges under vacuum condition easily pollutes vacuum environment, influences equipment performance.Because magnet fluid sealing can overcome above-mentioned defective effectively, thereby this sealing configuration more and more is widely adopted in the transmission shaft sealing of vacuum equipment.But, this medium-sized magnet fluid sealing shaft drive structure, higher at the transmission shaft rotating speed, though when perhaps the not high sealing part works environment of rotating speed surpasses 80 ℃, this magnetic fluid sealing structure then can lose efficacy, thereby the degree of vacuum that causes requiring in the working environment can't guarantee.
The purpose of the present utility model: aim to provide and a kind ofly under high rotating speed or higher operating ambient temperature, still can keep vacuum-packed magnetic fluid sealing structure.
Above-mentioned goal of the invention realizes by following design proposal:
The design of this technological scheme is that the sealing configuration in the magnetic fluid sealing structure is forced cooling, makes it to keep sealability constant.
The vacuum equipment transmission shaft device for sealing magnetic fluid of this pressure cooling by transmission shaft (1), support housing (2), and be made up of jointly the core assembly that pole shoe (3) and permanent magnet (4) make up, is characterized in that:
Through hole (6) and cooling channel (7) that link to each other with through hole, that be located on the pole shoe (3) that A, described cooling structure are gone up setting by support housing (2) are formed, and through hole and the extraneous low-temperature receiver medium through being located on the support housing (2) constitutes a cooling heat dissipation structure simultaneously;
B, described core assembly are made up of pole shoe (3) and permanent magnet (4), the utmost point mark of mouth groove (8) of described pole shoe (3) is by being located at that transmission shaft (1) is gone up and going up depression with the corresponding axle in pole shoe (3) position and take on, and magnetic liquid in filling in the micro-gap of utmost point tooth (9) and pole shoe (3).
Described permanent magnet (4) is an annular monomer, also can be by circular groups zoarium cylindric or the single magnet of disk shape.
In the circular groups zoarium of being made up of single magnet, the polarity orientation of its single magnet should be consistent.
Described cooling channel (7) also can be located at the corresponding support housing of core assembly (3) on.
This vacuum equipment transmission shaft magnetic current seal arrangement that can force cooling according to above technological scheme design, its advantage is not only to have general magnetic fluid transmission seal device sealability, and, make it can adapt to the working condition of higher rotation speed or higher operating ambient temperature owing to set up after the pressure cooling mechanism.
Accompanying drawing is the utility model structural representation.
Among the figure: 1. transmission shaft, 2. support housing, 3. pole shoe, 4. permanent magnet, 5. joint, 6. through hole, 7. cooling channel, 8. utmost point mark of mouth groove, 9. utmost point tooth.
Further describe the utility model below in conjunction with accompanying drawing, and provide embodiment.
The vacuum equipment transmission shaft device for sealing magnetic fluid that can force cooling shown in the drawings, form by transmission shaft (1), support housing (2), pole shoe (3), permanent magnet (4) etc., wherein said magnet fluid sealing interval is made up of transmission shaft (1), support housing (2), pole shoe (3), permanent magnet (4), be the corresponding section that described utmost point mark of mouth groove (8) is opened in the transmission shaft (1) corresponding with pole shoe (3), filling magnetic liquid between the micro-gap of the utmost point tooth (9) that forms on pole shoe (3) and the transmission shaft.Utmost point mark of mouth groove (8) is decided on its degree of vacuum or requirement of withstand voltage with utmost point number of teeth amount; But utmost point mark of mouth groove total length generally should be corresponding with width of pole shoe.
Described cooling structure then is made up of support housing (2), pole shoe (3) and the joint (5) be located on the support housing (2), specific practice is to go up at support housing (2) through hole (6) corresponding with pole shoe (3) number and position is set, and on the pole shoe corresponding, offer cooling channel (7) with through hole, by being located at the hollow joint (5) on the support housing, make the cooling channel (7) on the pole shoe (3) form the but annular pass of medium help heat radiation of some coolings by through hole (6).The sectional shape of this cooling channel (7) is not limit, and can be that circle, triangle, rectangle, trapezoidal, used heat eliminating medium can not limit yet.By the pressure cooling of medium, can make magnetic fluid seal adapt to the requirement of the transmission shaft of higher speed running, make it can guarantee to be higher than 80 ℃ of (reliable and stable operations of the magnetic seal under 2 conditions too at working environment.
Described utmost point mark of mouth groove (8), its cross section can be rectangle, trapezoidal, triangle or other shape.
Claims (5)
1, a kind of vacuum equipment transmission shaft device for sealing magnetic fluid that can force cooling by transmission shaft (1), support housing (2), and be made up of jointly the core assembly that pole shoe (3) and permanent magnet (4) make up, is characterized in that:
Through hole (6) and cooling channel (7) that link to each other with through hole, that be located on the pole shoe (3) that A, described cooling structure are gone up setting by support housing (2) are formed, and through hole and the extraneous low-temperature receiver medium through being located on the support housing (2) constitutes a cooling heat dissipation structure simultaneously;
B, described core assembly are made up of pole shoe (3) and permanent magnet (4), the utmost point mark of mouth groove (8) of described pole shoe (3) is by being located at that transmission shaft (1) is gone up and going up depression with the corresponding axle in pole shoe (3) position and take on, and magnetic liquid in filling in the micro-gap of utmost point tooth (9) and pole shoe (3).
2, a kind of vacuum equipment transmission shaft device for sealing magnetic fluid that can force cooling according to claim 1 is characterized in that described permanent magnet (4) is an annular monomer.
3, a kind of vacuum equipment transmission shaft device for sealing magnetic fluid that can force cooling according to claim 1 is characterized in that described permanent magnet is by circular groups zoarium cylindric or the single magnet of disk shape.
4, according to claim 1 and the 3 described a kind of vacuum equipment transmission shaft device for sealing magnetic fluid that can force cooling, it is characterized in that in the circular groups zoarium of described single magnet composition, the polarity orientation of its single magnet should be consistent.
5, a kind of vacuum equipment transmission shaft device for sealing magnetic fluid that can force cooling according to claim 1, it is characterized in that described cooling channel (7) also can be located at the corresponding support housing of magnet assembly (3) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225901 CN2447583Y (en) | 2000-11-03 | 2000-11-03 | Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225901 CN2447583Y (en) | 2000-11-03 | 2000-11-03 | Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2447583Y true CN2447583Y (en) | 2001-09-12 |
Family
ID=33589888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00225901 Expired - Fee Related CN2447583Y (en) | 2000-11-03 | 2000-11-03 | Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2447583Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458243C (en) * | 2007-04-29 | 2009-02-04 | 浙江工业大学 | Magnetofluid seal driving device for vacuum equipment driving shaft |
| CN101776146A (en) * | 2010-03-02 | 2010-07-14 | 北京交通大学 | Large-diameter large-gap magnetic liquid static seal structure |
| CN101776150A (en) * | 2010-03-08 | 2010-07-14 | 北京交通大学 | Combined reciprocating sealing device of magnetic liquid, C-shaped slip ring and Y x type seal ring |
| CN102588606A (en) * | 2012-03-14 | 2012-07-18 | 无锡康力电子有限公司 | Magnetic fluid sealing device for vacuum coating drive mechanism |
| CN103511470A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | Transmission shaft with torque and turn angle measurement functions for thermal vacuum environment |
| CN103511469A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | Friction-free sealing shaft with torque and angle measurement |
| CN103527643A (en) * | 2013-09-18 | 2014-01-22 | 浙江工业大学 | Magnetic fluid sealing shaft with torque measurement |
| CN103527644A (en) * | 2013-09-18 | 2014-01-22 | 浙江工商大学 | Magnetic fluid sealing shaft capable of accurately measuring angles under hot vacuum condition |
| CN104864100A (en) * | 2015-05-14 | 2015-08-26 | 自贡兆强密封制品实业有限公司 | Combined sealing system of refrigerating compressor |
| CN106015584A (en) * | 2016-07-28 | 2016-10-12 | 广西科技大学 | Magnetic-source-series magnetic fluid sealing device |
| CN106402388A (en) * | 2016-10-25 | 2017-02-15 | 北京交通大学 | Copper-ring water-cooling type magnetic liquid sealing device |
| CN106972398A (en) * | 2017-04-18 | 2017-07-21 | 嘉兴市恒创电力设备有限公司 | A kind of environmentally friendly ring main unit magnet fluid sealing reel |
| CN108351031A (en) * | 2015-11-11 | 2018-07-31 | 日本伊格尔博格曼有限公司 | Magnetic fluid seal |
-
2000
- 2000-11-03 CN CN 00225901 patent/CN2447583Y/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458243C (en) * | 2007-04-29 | 2009-02-04 | 浙江工业大学 | Magnetofluid seal driving device for vacuum equipment driving shaft |
| CN101776146A (en) * | 2010-03-02 | 2010-07-14 | 北京交通大学 | Large-diameter large-gap magnetic liquid static seal structure |
| CN101776150A (en) * | 2010-03-08 | 2010-07-14 | 北京交通大学 | Combined reciprocating sealing device of magnetic liquid, C-shaped slip ring and Y x type seal ring |
| CN101776150B (en) * | 2010-03-08 | 2013-05-08 | 北京交通大学 | Combined reciprocating sealing device of magnetic liquid, C-shaped slip ring and Y x type seal ring |
| CN102588606A (en) * | 2012-03-14 | 2012-07-18 | 无锡康力电子有限公司 | Magnetic fluid sealing device for vacuum coating drive mechanism |
| CN103527644B (en) * | 2013-09-18 | 2015-10-28 | 浙江工商大学 | A kind of magnet fluid sealing axle of energy Measurement accuracy hot vacuum environment lower angle |
| CN103527643B (en) * | 2013-09-18 | 2016-01-27 | 浙江工业大学 | With the magnet fluid sealing axle of torque measurement |
| CN103527643A (en) * | 2013-09-18 | 2014-01-22 | 浙江工业大学 | Magnetic fluid sealing shaft with torque measurement |
| CN103527644A (en) * | 2013-09-18 | 2014-01-22 | 浙江工商大学 | Magnetic fluid sealing shaft capable of accurately measuring angles under hot vacuum condition |
| CN103511469A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | Friction-free sealing shaft with torque and angle measurement |
| CN103511470A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | Transmission shaft with torque and turn angle measurement functions for thermal vacuum environment |
| CN103511470B (en) * | 2013-09-18 | 2015-10-28 | 浙江工业大学 | A kind of transmission shaft of hot vacuum environment band torque outer corner measurement |
| CN103511469B (en) * | 2013-09-18 | 2015-12-30 | 浙江工业大学 | A kind of seal shaft without friction belt moment of torsion and angle measurement |
| CN104864100A (en) * | 2015-05-14 | 2015-08-26 | 自贡兆强密封制品实业有限公司 | Combined sealing system of refrigerating compressor |
| CN104864100B (en) * | 2015-05-14 | 2016-09-21 | 自贡兆强密封制品实业有限公司 | Refrigerant condenser combination sealing system |
| CN108351031A (en) * | 2015-11-11 | 2018-07-31 | 日本伊格尔博格曼有限公司 | Magnetic fluid seal |
| US10378587B2 (en) | 2015-11-11 | 2019-08-13 | EagleBurgmann Japan Co., Ltd. | Magnetic fluid seal |
| CN106015584A (en) * | 2016-07-28 | 2016-10-12 | 广西科技大学 | Magnetic-source-series magnetic fluid sealing device |
| CN106402388A (en) * | 2016-10-25 | 2017-02-15 | 北京交通大学 | Copper-ring water-cooling type magnetic liquid sealing device |
| CN106402388B (en) * | 2016-10-25 | 2018-02-13 | 北京交通大学 | Copper ring water-cooled magnetic fluid seal device |
| CN106972398A (en) * | 2017-04-18 | 2017-07-21 | 嘉兴市恒创电力设备有限公司 | A kind of environmentally friendly ring main unit magnet fluid sealing reel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |