CN106884988A - Magnetic fluid seal device magnetic liquid air pressure injection method - Google Patents
Magnetic fluid seal device magnetic liquid air pressure injection method Download PDFInfo
- Publication number
- CN106884988A CN106884988A CN201710027930.XA CN201710027930A CN106884988A CN 106884988 A CN106884988 A CN 106884988A CN 201710027930 A CN201710027930 A CN 201710027930A CN 106884988 A CN106884988 A CN 106884988A
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- China
- Prior art keywords
- pole shoe
- magnetic
- magnetic liquid
- sealing
- air pressure
- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
Abstract
Magnetic fluid seal device magnetic liquid air pressure injection method, belongs to sealing field of mechanical engineering.Magnetic fluid sealing technology has zero leakage due to it, without abrasion, long lifespan, advantages of simple structure and simple is gradually used by increasing industry, solves the response to magnetic field due to magnetic liquid, and magnetic liquid is uniformly injected into problem during magnetic fluid sealing.The method is sealing device top plus a regulator, regulator is made up of seal closure (12) and regulation component (13), rubber ring (11) is placed in the groove of end cap (10) upper surface, seal closure (12) is placed on end cap (10) upper surface, and threaded connection is fixed；Magnetic liquid (15) is injected in gap of the end cap (10) with axle (14)；Axle (14) is slowly rotated, and regulation air pressure makes magnetic liquid (15) flow downward, and magnetic liquid (15) reached and be adsorbed at the tooth of pole, forms sealing structure.
Description
Technical field
The present invention relates to a kind of magnetic fluid seal device magnetic liquid air pressure injection method, belong to mechanical engineering sealing neck
Domain.
Background technology
Magnetic liquid is under the cladding of surfactant, nano level magnetic-particle to be dispersed in into shape in base load liquid
Into stable colloid, the presence that maintains a long-term stability is remained under gravitational field and magnetic fields, do not reunited, do not precipitated.Magnetic liquid is made
It is a kind of new function material, with special physicochemical properties.The sealing means of current main flow are mechanical seal, but single
Zero leakage is not accomplished in pure mechanical seal, and big easily the generation to sealing medium or working environment of wear extent is polluted, magnetic
Fluid sealing techniques have zero leakage due to it, without abrasion, long lifespan, advantages of simple structure and simple is gradually by increasing industry
Used, yet with magnetic liquid to the response problem in magnetic field, magnetic liquid is uniformly injected into always during magnetic fluid sealing
It is a difficult point.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of magnetic liquid air pressure injection method.Propose close
Sealing assembly top plus a regulator, by the gap of magnetic liquid injection end cap and axle, regulation air pressure make magnetic liquid to
Lower flowing.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of magnetic liquid air pressure injection method, step is as follows：
Step one：The first pole shoe sealing ring, the second pole shoe sealing ring, the 3rd pole shoe sealing ring are separately mounted to first
In the cylindrical groove of pole shoe, the second pole shoe, the 3rd pole shoe, constitute the first pole shoe with sealing ring, the second pole shoe with sealing ring,
The 3rd pole shoe with sealing ring；First pole shoe with sealing ring, the first permanent magnet, the second pole shoe, second with sealing ring
Permanent magnet, the 3rd pole shoe with sealing ring, axle and end cap are sequentially placed into shell, and completing component with the threaded connection on end cap determines
Position, constitutes sealing device；
Step 2：Sealing device top plus a regulator, regulator is made up of seal closure and regulation component, by rubber
Cushion rubber is placed in the groove of end cap upper surface, and seal closure is placed on end cap upper surface, and threaded connection is fixed；
Step 3：The sealing device perpendicularly to the axis place by face, magnetic liquid is injected in gap of the end cap with axle, axle
Slow rotation, regulation air pressure makes magnetic liquid flow downward, and magnetic liquid reached and be adsorbed at the tooth of pole, forms sealing structure.
In order that magnetic liquid reach below pole tooth at, increase air pressure and break through magnetic fluid sealing, form a passage,
Magnetic liquid flows downward at the pole tooth below reaching, and forms complete sealing structure.Axle slowly rotarily drives magnetic liquid shifting
It is dynamic, it is distributed magnetic liquid more uniform, rotary speed is 10-20 revolutions per minute.The magnetic liquid is in surfactant
Under cladding, nano level magnetic-particle forms to be remained under gravitational field and magnetic fields holding length in being dispersed in base load liquid
The colloid of phase stable existence；The magnetic-particle is magnetic particles of ferroferric oxide or other magnetic-particles, and the base load liquid is
Machine oil base base load liquid or other base load liquid.
The present invention is had the advantage that compared with prior art：
Simple structure of the present invention, it is simple to operate, add magnetic liquid to be reached using air pressure injection method and be uniformly injected into magnetic
The purpose of property liquid, makes every one-level pole tooth be magnetic liquid distribution；And the actual pressure voltage of seal assembly can be verified.
Brief description of the drawings
Fig. 1 is the schematic device that the inventive method is used.
In Fig. 1：Shell 1, the first pole shoe sealing ring 2, the first pole shoe 3, the first permanent magnet 4, the second pole shoe sealing ring 5,
Diode boot 6, the second permanent magnet 7, the 3rd pole shoe sealing ring 8, the 3rd pole shoe 9, end cap 10, rubber ring 11, seal closure 12, pressure regulation group
Part 13, axle 14, magnetic liquid 15.
Specific embodiment
With accompanying drawing, as specific embodiment, the present invention will be further described：
Magnetic fluid seal device magnetic liquid air pressure injection method, the method includes：
Step one：The first pole shoe sealing ring 2, the second pole shoe sealing ring 5, the 3rd pole shoe sealing ring 8 are separately mounted to
In the cylindrical groove of first pole shoe 3, the second pole shoe 6, the 3rd pole shoe 9, the first pole shoe with sealing ring, with sealing ring the are constituted
Diode boot, the 3rd pole shoe with sealing ring；First pole shoe with sealing ring, the first permanent magnet 4, the second pole with sealing ring
Boots, the second permanent magnet 7, the 3rd pole shoe with sealing ring, axle 14 and end cap 10 are sequentially placed into shell 1, with the screw thread on end cap
Connection completes component positioning, constitutes sealing device；
Step 2：Sealing device top plus a regulator, regulator are made up of seal closure 12 and regulation component 13,
Rubber ring 11 is placed in the groove of the upper surface of end cap 10, seal closure 12 is placed on the upper surface of end cap 10, threaded connection is solid
It is fixed；
Step 3：The sealing device perpendicularly to the axis placed by face, and magnetic liquid 15 is injected between end cap 10 and axle 14
In gap；Axle 14 is slowly rotated, and regulation air pressure makes magnetic liquid 15 flow downward, and magnetic liquid 15 reached and be adsorbed at the tooth of pole, shape
Into sealing structure.
Pole shoe, axle 14 are from the good material of magnetic conductivity, such as electrical pure iron；
Permanent magnet selects neodymium iron boron；
The species of magnetic liquid 15 according to the magnetic liquid of the different choice of use environment difference base load liquid, magnetic as described
Particle is magnetic particles of ferroferric oxide or other magnetic-particles, and the base load liquid is machine oil base base load liquid or other base load liquid；
Shell 1 selects non-magnetic material, such as non-magnetic stainless steel.
Claims (3)
1. magnetic fluid seal device magnetic liquid air pressure injection method, it is characterised in that：The method includes：
Step one：The first pole shoe sealing ring (2), the second pole shoe sealing ring (5), the 3rd pole shoe sealing ring (8) are respectively mounted
In the cylindrical groove of the first pole shoe (3), the second pole shoe (6), the 3rd pole shoe (9), constitute the first pole shoe with sealing ring, with close
Second pole shoe of seal, the 3rd pole shoe with sealing ring；First pole shoe with sealing ring, the first permanent magnet (4), band sealing
The second pole shoe, the second permanent magnet (7), the 3rd pole shoe with sealing ring, axle (14) and the end cap (10) for enclosing are sequentially placed into shell (1)
In, complete component with the threaded connection on end cap and position, constitute sealing device；
Step 2：Sealing device top plus a regulator, regulator are made up of seal closure (12) and regulation component (13),
Rubber ring (11) is placed in the groove of end cap (10) upper surface, seal closure (12) is placed on end cap (10) upper surface, spiral shell
Line is connected；
Step 3：The sealing device perpendicularly to the axis placed by face, and magnetic liquid (15) is injected into end cap (10) with axle (14)
In gap；Axle (14) slowly rotates, and regulation air pressure makes magnetic liquid (15) flow downward, and magnetic liquid (15) reaches quilt at the tooth of pole
Absorption, forms sealing structure.
2. magnetic fluid seal device magnetic liquid air pressure injection method according to claim 1, it is characterised in that：Axle (14) delays
Slow rotation, rotary speed is 10-20 revolutions per minute.
3. magnetic fluid seal device magnetic liquid air pressure injection method according to claim 1, it is characterised in that：Institute is with air pressure capable of being increased
Equal to the pressure voltage of seal assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710027930.XA CN106884988B (en) | 2017-01-16 | 2017-01-16 | The air pressure method for implanting of the magnetic liquid of magnetic fluid seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710027930.XA CN106884988B (en) | 2017-01-16 | 2017-01-16 | The air pressure method for implanting of the magnetic liquid of magnetic fluid seal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884988A true CN106884988A (en) | 2017-06-23 |
| CN106884988B CN106884988B (en) | 2018-09-21 |
Family
ID=59176586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710027930.XA Expired - Fee Related CN106884988B (en) | 2017-01-16 | 2017-01-16 | The air pressure method for implanting of the magnetic liquid of magnetic fluid seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884988B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980359A (en) * | 2018-08-13 | 2018-12-11 | 广西科技大学 | A kind of novel magnetic fluid sealing structure |
| CN108980360A (en) * | 2018-08-13 | 2018-12-11 | 广西科技大学 | A kind of magnetic source parallel connection type magnetic fluid sealing structure |
| CN109027249A (en) * | 2018-08-13 | 2018-12-18 | 广西科技大学 | A kind of magnetic fluid sealing structure with dentation magnetic source |
| CN112112970A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Magnetic liquid sealing device |
| CN112524256A (en) * | 2020-11-30 | 2021-03-19 | 北京交通大学 | Magnetic liquid gradual-moving filling method for magnetic liquid sealing device |
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|---|---|---|---|---|
| CN1184906A (en) * | 1997-12-05 | 1998-06-17 | 中国矿业大学 | Magnetic fluid sealing device |
| JP2009115122A (en) * | 2007-11-02 | 2009-05-28 | Kazufumi Ogawa | Seal mechanism and device with the same |
| CN102072326A (en) * | 2011-01-24 | 2011-05-25 | 北京交通大学 | Magnetic liquid sealing process researching device |
| CN103256392A (en) * | 2013-04-11 | 2013-08-21 | 北京交通大学 | Magnetic fluid dust-proofing and sealing method for wind sensor |
| CN104455461A (en) * | 2013-09-15 | 2015-03-25 | 南京大五教育科技有限公司 | Longitudinal magnetofluid sealing device |
| CN104454990A (en) * | 2013-09-15 | 2015-03-25 | 南京大五教育科技有限公司 | Novel magnetic fluid bearing sealing device |
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2017
- 2017-01-16 CN CN201710027930.XA patent/CN106884988B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184906A (en) * | 1997-12-05 | 1998-06-17 | 中国矿业大学 | Magnetic fluid sealing device |
| JP2009115122A (en) * | 2007-11-02 | 2009-05-28 | Kazufumi Ogawa | Seal mechanism and device with the same |
| CN102072326A (en) * | 2011-01-24 | 2011-05-25 | 北京交通大学 | Magnetic liquid sealing process researching device |
| CN103256392A (en) * | 2013-04-11 | 2013-08-21 | 北京交通大学 | Magnetic fluid dust-proofing and sealing method for wind sensor |
| CN104455461A (en) * | 2013-09-15 | 2015-03-25 | 南京大五教育科技有限公司 | Longitudinal magnetofluid sealing device |
| CN104454990A (en) * | 2013-09-15 | 2015-03-25 | 南京大五教育科技有限公司 | Novel magnetic fluid bearing sealing device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980359A (en) * | 2018-08-13 | 2018-12-11 | 广西科技大学 | A kind of novel magnetic fluid sealing structure |
| CN108980360A (en) * | 2018-08-13 | 2018-12-11 | 广西科技大学 | A kind of magnetic source parallel connection type magnetic fluid sealing structure |
| CN109027249A (en) * | 2018-08-13 | 2018-12-18 | 广西科技大学 | A kind of magnetic fluid sealing structure with dentation magnetic source |
| CN108980360B (en) * | 2018-08-13 | 2020-05-05 | 广西科技大学 | Magnetic source parallel type magnetic fluid sealing structure |
| CN109027249B (en) * | 2018-08-13 | 2020-05-05 | 广西科技大学 | Magnetic fluid sealing structure with tooth-shaped magnetic source |
| CN108980359B (en) * | 2018-08-13 | 2020-05-05 | 广西科技大学 | Magnetic fluid sealing structure |
| CN112112970A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Magnetic liquid sealing device |
| CN112112970B (en) * | 2020-10-30 | 2021-04-20 | 清华大学 | Magnetic liquid sealing device |
| CN112524256A (en) * | 2020-11-30 | 2021-03-19 | 北京交通大学 | Magnetic liquid gradual-moving filling method for magnetic liquid sealing device |
| CN112524256B (en) * | 2020-11-30 | 2022-07-12 | 北京交通大学 | Magnetic liquid gradual-moving filling method for magnetic liquid sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106884988B (en) | 2018-09-21 |
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Granted publication date: 20180921 Termination date: 20210116 |