CN201149091Y - Magnetic fluid sealing device for reciprocating movement - Google Patents
Magnetic fluid sealing device for reciprocating movement Download PDFInfo
- Publication number
- CN201149091Y CN201149091Y CNU2007200655545U CN200720065554U CN201149091Y CN 201149091 Y CN201149091 Y CN 201149091Y CN U2007200655545 U CNU2007200655545 U CN U2007200655545U CN 200720065554 U CN200720065554 U CN 200720065554U CN 201149091 Y CN201149091 Y CN 201149091Y
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- China
- Prior art keywords
- magnetic fluid
- sealing
- motion
- magnetic
- magnet
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- 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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Abstract
A magnetic fluid sealing device for reciprocating motion comprises a pair of sliding bearings, a pair of mechanical sealing parts, and a magnetic fluid reciprocating sealing part which is positioned between the sliding bearings and the mechanical sealing parts. The magnetic fluid reciprocating sealing part is formed by connecting three magnetic fluid sealing components in series, the magnetic fluid sealing components which are positioned on the both sides are attached to magnetic fluid storage banks, wherein, the magnetic fluid sealing component on the left side is further provided with an exhaust channel which passes through a magnet and a pole piece outer circle. When in reciprocating motion, the magnetic fluid in a sealing area can be collected to the magnetic fluid storage bank on one side along with the motion of a shaft, and the magnetic fluid in the magnetic fluid storage bank at the other side is driven to the middle sealing area along with the motion of the shaft, thus maintaining the stability of the magnetic fluid and keeping the normal working state of the magnetic fluid sealing device. In addition, as the constraint of a strong magnetic field and the existence of the twisted exhaust channel, the unnecessary loss of the magnetic fluid can be avoided during the motion.
Description
Technical field
The utility model relates to a kind of to-and-fro motion device for sealing magnetic fluid.
Background technique
Achievement was a lot of since device for sealing magnetic fluid emerged, and successively obtained outstanding achievement in a plurality of fields; But because on the details, it is but producing little effect aspect the seal aspect of reciprocating mechanism, not seeing so far has structural reduction and this type of seal arrangement appearance of obvious results.
Summary of the invention
The purpose of this utility model will provide a kind of to-and-fro motion device for sealing magnetic fluid exactly, and it should be able to solve the constrained two-way transportation problem of magnetic fluid in the reciprocating motion preferably, can separate the gaseous emission problem that will never cause the magnetic fluid loss simultaneously again preferably.
The so-called a kind of to-and-fro motion device for sealing magnetic fluid of the utility model, it comprise a pair of sliding bearing 1,1 in the housing ', a pair of mechanical sealing element 2,2 ', and the magnetic fluid reciprocation sealing spare between sliding bearing and mechanical sealing element, it is characterized in that: described magnetic fluid reciprocation sealing spare is in series by three magnet fluid sealing assemblies, and the magnet fluid sealing assembly that is positioned at both sides set up magnetic fluid thesaurus 8,8 ', wherein Zuo Ce magnet fluid sealing assembly also is provided with the exhaust passage 5 by magnet 4 and pole shoe 3 cylindricals.
The beneficial effects of the utility model are: along with the motion of axle, magnetic fluid in the seal area can be brought in the magnetic fluid thesaurus of a side, seal area in the middle of magnetic fluid in the opposite side magnetic fluid storehouse then is brought into, thereby remain the stable of the interior magnetic fluid of seal area, keep the proper functioning of sealing; In addition because all magnetic fluids are all under the constraint of three black boies, and gas circuit via the slit of magnet and pole shoe cylindrical mistake, so can not cause the loss of magnetic fluid.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure, 1,1 '---sliding bearing, 2,2 '---mechanical sealing element, 3,6---pole shoe, 4---magnet, 5---the exhaust passage, 7---the magnetic line of force, 8,8 '---the magnetic fluid thesaurus.
Embodiment
As figure, a kind of to-and-fro motion with device for sealing magnetic fluid comprise a pair of sliding bearing 1,1 in the housing ', a pair of mechanical sealing element 2,2 ', and magnetic fluid reciprocation sealing spare between sliding bearing and mechanical sealing element, that be in series by three magnet fluid sealing assemblies, and the magnet fluid sealing assembly that is positioned at both sides set up magnetic fluid thesaurus 8,8 ', wherein Zuo Ce magnet fluid sealing assembly also is provided with the exhaust passage 5 by magnet 4 and pole shoe 3 cylindricals.In the magnetic fluid reciprocation sealing that is in series by three magnet fluid sealing assemblies, the black box one of both sides seals, and second half is by magnetic fluid thesaurus 8,8 ' rise the collection storage and the output action of magnetic fluid; The collection of magnetic fluid adopts mechanical sealing element to realize, and be collected in magnetic fluid thesaurus 8,8 ' in magnetic fluid all be under the constraint of magnetic loop high magnetic fields.When to-and-fro motion, magnetic fluid in the seal area can be brought in the magnetic fluid thesaurus of a side along with the motion of axle and be collected under the effect of mechanical sealing element, magnetic fluid in the opposite side magnetic fluid thesaurus is then along with the motion of axle is brought into the intermediate seal district, thereby it is stable that magnetic fluid in the seal area is remained, and keeps the normal working of this device.
Claims (1)
1. to-and-fro motion device for sealing magnetic fluid, it comprises a pair of sliding bearing (1), (1 ') in the housing, a pair of mechanical sealing element (2), (2 '), and the magnetic fluid reciprocation sealing spare between sliding bearing and mechanical sealing element, it is characterized in that: described magnetic fluid reciprocation sealing spare is in series by three magnet fluid sealing assemblies, and the magnet fluid sealing assembly that is positioned at both sides has been set up magnetic fluid thesaurus (8), (8 '), and wherein Zuo Ce magnet fluid sealing assembly also is provided with the exhaust passage (5) by magnet (4) and pole shoe (3) cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200655545U CN201149091Y (en) | 2007-12-26 | 2007-12-26 | Magnetic fluid sealing device for reciprocating movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200655545U CN201149091Y (en) | 2007-12-26 | 2007-12-26 | Magnetic fluid sealing device for reciprocating movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149091Y true CN201149091Y (en) | 2008-11-12 |
Family
ID=40116859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200655545U Expired - Fee Related CN201149091Y (en) | 2007-12-26 | 2007-12-26 | Magnetic fluid sealing device for reciprocating movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149091Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101776149A (en) * | 2010-03-01 | 2010-07-14 | 北京交通大学 | Low-temperature and small-diameter magnetic fluid seal device |
| CN101832843A (en) * | 2010-03-12 | 2010-09-15 | 北京交通大学 | Reciprocating sealing performance test bed for magnetic liquid sealing device |
| CN103343822A (en) * | 2013-07-05 | 2013-10-09 | 北京交通大学 | Magnetic liquid rotating sealing device suitable for space station |
| CN107816553A (en) * | 2017-12-13 | 2018-03-20 | 广西科技大学 | A kind of ladder shaft type device for sealing magnetic fluid |
| CN108061163A (en) * | 2017-12-13 | 2018-05-22 | 广西科技大学 | A kind of staged device for sealing magnetic fluid |
| CN108869751A (en) * | 2018-08-13 | 2018-11-23 | 广西科技大学 | A kind of combined magnetic fluid reciprocation sealing structure |
-
2007
- 2007-12-26 CN CNU2007200655545U patent/CN201149091Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776149A (en) * | 2010-03-01 | 2010-07-14 | 北京交通大学 | Low-temperature and small-diameter magnetic fluid seal device |
| 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 |
| CN101832843A (en) * | 2010-03-12 | 2010-09-15 | 北京交通大学 | Reciprocating sealing performance test bed for magnetic liquid sealing device |
| CN103343822A (en) * | 2013-07-05 | 2013-10-09 | 北京交通大学 | Magnetic liquid rotating sealing device suitable for space station |
| CN107816553A (en) * | 2017-12-13 | 2018-03-20 | 广西科技大学 | A kind of ladder shaft type device for sealing magnetic fluid |
| CN108061163A (en) * | 2017-12-13 | 2018-05-22 | 广西科技大学 | A kind of staged device for sealing magnetic fluid |
| CN108061163B (en) * | 2017-12-13 | 2019-06-25 | 广西科技大学 | A kind of staged device for sealing magnetic fluid |
| CN108869751A (en) * | 2018-08-13 | 2018-11-23 | 广西科技大学 | A kind of combined magnetic fluid reciprocation sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20101226 |