CN107956883A - A kind of radial direction socket type labyrinth type device for sealing magnetic fluid - Google Patents
A kind of radial direction socket type labyrinth type device for sealing magnetic fluid Download PDFInfo
- Publication number
- CN107956883A CN107956883A CN201711333747.9A CN201711333747A CN107956883A CN 107956883 A CN107956883 A CN 107956883A CN 201711333747 A CN201711333747 A CN 201711333747A CN 107956883 A CN107956883 A CN 107956883A
- Authority
- CN
- China
- Prior art keywords
- pole shoe
- ring
- pole
- shoe ring
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
- F16J15/4476—Labyrinth packings with radial path
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The present invention relates to a kind of radial direction socket type labyrinth type device for sealing magnetic fluid, including axis, shell, left pole shoe ring, right pole shoe ring, sleeve, magnet ring；The left pole shoe ring and right pole shoe central spacer are arranged in shell；The sleeve is set on axis, between left pole shoe ring and right pole shoe ring；The magnet ring is arranged in shell, between left pole shoe ring and right pole shoe ring；Gap is left between the periphery of the sleeve and the inner headed face of magnet ring；Pole tooth I is arranged at intervals on the right side of the left pole shoe ring；Pole tooth II is arranged at intervals on the left side of the sleeve, pole tooth III is arranged at intervals on right side；Pole tooth IV is arranged at intervals on the left side of the right pole shoe ring.Present invention aim to address the relatively low problem of pressure-resistant performance existing for existing sealing device so that the sealing technique is successfully applied in the fields such as high-speed overload.
Description
Technical field
The invention belongs to sealing field of mechanical engineering, and in particular to a kind of radial direction socket type labyrinth type magnet fluid sealing dress
Put.
Background technology
When magnetic fluid seal technology is applied in major diameter, high speed and heavily loaded sealed environment, the magnetism in seal clearance
Fluid often fails because seal clearance is excessive, therefore the pressure-resistant performance for improving wide arc gap magnetic fluid seal is current research
One of hot issue.
One of the method for improving the pressure-resistant performance of wide arc gap magnetic Fluid Sealing be by improving magnetic fluid seal structure,
Sealing device as described in documents 1 (patent of Publication No. CN 103115152A).It is although close described in document above
The relatively common magnetic fluid seal performance of seal apparatus is greatly improved, but its sealing performance does not reach high-speed overload etc. still
The high sealing performance requirement of special operation condition.
The content of the invention
The object of the present invention is to provide a kind of radial direction socket type labyrinth type device for sealing magnetic fluid, so as to solve existing sealing
The relatively low problem of pressure-resistant performance existing for device so that the sealing technique is successfully applied in the fields such as high-speed overload.
Technical scheme is as follows：
The radial direction socket type labyrinth type device for sealing magnetic fluid, including axis, shell, left pole shoe ring, right pole shoe ring, sleeve,
Magnet ring；
The left pole shoe ring and right pole shoe central spacer are arranged in shell, the periphery and shell of left pole shoe ring and right pole shoe ring
Inner wall is in contact, and the inner headed face of left pole shoe ring and right pole shoe ring radially extends to the periphery of axis, between the periphery of axis
Leave gap；
The sleeve is set on axis, between left pole shoe ring and right pole shoe ring；The magnet ring is arranged in shell,
Between left pole shoe ring and right pole shoe ring, contacted respectively with left pole shoe ring and right pole shoe ring, the periphery of magnet ring with it is outer
The inner wall contact of shell；Gap is left between the periphery of the sleeve and the inner headed face of magnet ring；
Pole tooth I is arranged at intervals on the right side of the left pole shoe ring；Pole tooth II is arranged at intervals on the left side of the sleeve,
Pole tooth III is arranged at intervals on right side；Pole tooth IV is arranged at intervals on the left side of the right pole shoe ring；
The pole tooth I extends to the left side of sleeve vertically, and gap is left between the left side of sleeve, is set in the gap
There is magnetic fluid；The pole tooth II right side extensions of pole shoe ring to the left vertically, leave between the right side of left pole shoe ring
Gap, is equipped with magnetic fluid in the gap；The pole tooth I and pole tooth II is interspersed, and does not contact between each other；
The pole tooth IV extends to the right side of sleeve vertically, gap is left between the right side of sleeve, in the gap
Equipped with magnetic fluid；The pole tooth III left side extensions of pole shoe ring to the right vertically, are stayed between the left side of right pole shoe ring
There is gap, magnetic fluid is equipped with the gap；The pole tooth IV and pole tooth III is interspersed, and does not contact between each other.
The left pole shoe ring and the periphery of right pole shoe ring are equipped with annular groove, are equipped with the annular groove I
Sealing ring.
The magnet ring is axial charging permanent magnet.
The radial direction socket type labyrinth type device for sealing magnetic fluid, further includes left magnetism-isolating loop and right magnetism-isolating loop；Described
Left magnetism-isolating loop is arranged on the left side of left pole shoe, and the inner wall for being close to shell is set；The right magnetism-isolating loop is arranged on the right side of right pole shoe, tightly
The inner wall for pasting shell is set.
The radial direction socket type labyrinth type device for sealing magnetic fluid, further includes left bearing and right bearing, the left axle
Hold and be set with right bearing on axis, the left bearing is arranged on the left side of left magnetism-isolating loop, the right bearing be arranged on it is right every
The right side of magnet ring.
The pole tooth I is arranged at intervals 1-10, and the pole tooth II corresponds to pole tooth I and is arranged at intervals 1-10.
The pole tooth IV is arranged at intervals 1-10；The pole tooth III corresponds to pole tooth IV and is arranged at intervals 1-10
Magnet fluid sealing is to produce magnetic field force in seal clearance using permanent magnet magnetic fluid is secured firmly in seal clearance,
The pressure difference of both sides is resisted, so as to reach the effect of sealing.
The present invention is by designing a kind of labyrinth type sleeve, by the pole tooth design on pole shoe in radial directions, in labyrinth type
Injection magnetic fluid in the radial clearance of sleeve and pole shoe, so as to fulfill a kind of radial direction socket type labyrinth type device for sealing magnetic fluid.
The present invention overcomes existing sealing device can not realize the problem of the special operation condition high sealing performance requirement such as high-speed overload, using labyrinth
Formula sleeve arrangement structure design, makes to form maze spatial between labyrinth type sleeve and pole shoe, realizes labyrinth seal and magnetic fluid
The combination of sealing, while non-magnetic axis is used, the magnetic flux in magnetic circuit is considerably increased, is greatly reduced in seal failure
The loss of magnetic fluid, improves the voltage endurance capability and sealing reliability of magnetic fluid seal under the conditions of wide arc gap, expands it
Range of safety operation.
Brief description of the drawings
Fig. 1 is the structure diagram of sealing device of the present invention;
Each sequence number sign and corresponding title are as follows in figure：
1- axis, 2- shells, the left pole shoe rings of 3-, the right pole shoe rings of 4-, 5- sleeves, 6- magnet rings, 7- poles tooth I, 8- poles tooth II, 9- poles
IV I of tooth III, 10- poles tooth, 11- annular grooves, 12- sealing rings, the left magnetism-isolating loops of 13-, the right magnetism-isolating loops of 14-, 15- left bearings, 16-
Right bearing.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, the radial direction socket type labyrinth type device for sealing magnetic fluid, including axis 1, shell 2, left pole shoe ring
3rd, right pole shoe ring 4, sleeve 5, magnet ring 6；
The left pole shoe ring 3 and right pole shoe ring 4 interval be arranged on shell 2 in, the periphery of left pole shoe ring 3 and right pole shoe ring 4 with
The inner wall of shell 2 is in contact, and the inner headed face of left pole shoe ring 3 and right pole shoe ring 4 radially extends to the periphery of axis 1, with axis 1
Gap is left between periphery；
The sleeve 5 is set on axis 1, between left pole shoe ring 3 and right pole shoe ring 4；The magnet ring 6 is arranged on outer
In shell 2, between left pole shoe ring 3 and right pole shoe ring 4, contacted respectively with left pole shoe ring 3 and right pole shoe ring 4, magnet ring 6
Periphery is contacted with the inner wall of shell 2；Gap is left between the periphery of the sleeve 5 and the inner headed face of magnet ring 6；
Pole tooth I7 is arranged at intervals on the right side of the left pole shoe ring 3；Pole tooth is arranged at intervals on the left side of the sleeve 5
II8, pole tooth III9 is arranged at intervals on right side；Pole tooth IV 10 is arranged at intervals on the left side of the right pole shoe ring 4；
The pole tooth I7 extends to the left side of sleeve 5 vertically, leaves gap between the left side of sleeve 5, the gap
In be equipped with magnetic fluid；The pole tooth II8 right side extensions of pole shoe ring 3 to the left vertically, with the right side of left pole shoe ring 3 it
Between leave gap, magnetic fluid is equipped with the gap；The pole tooth I7 and pole tooth II8 is interspersed, and does not connect between each other
Touch；
The pole tooth IV 10 extends to the right side of sleeve 5 vertically, and gap is left between the right side of sleeve 5, between being somebody's turn to do
Magnetic fluid is equipped with gap；The pole tooth III9 left side extensions of pole shoe ring 4 to the right vertically, the left end with right pole shoe ring 4
Gap is left between face, magnetic fluid is equipped with the gap；The pole tooth IV 10 and pole tooth III9 is interspersed, and mutually it
Between do not contact.
The left pole shoe ring 3 and the periphery of right pole shoe ring 4 are equipped with annular groove 11, the annular groove I11
It is interior to be equipped with sealing ring 12.
The magnet ring 6 is axial charging permanent magnet.
The radial direction socket type labyrinth type device for sealing magnetic fluid, further includes left magnetism-isolating loop 13 and right magnetism-isolating loop 14；Institute
The left magnetism-isolating loop 13 stated is arranged on the left side of left pole shoe 3, and the inner wall for being close to shell 2 is set；The right magnetism-isolating loop 14 is arranged on right pole
The right side of boots 5, the inner wall for being close to shell 2 are set.
The radial direction socket type labyrinth type device for sealing magnetic fluid, further includes left bearing 15 and right bearing 16, described
Left bearing 15 and right bearing 16 are set with axis 1, and the left bearing 15 is arranged on the left side of left magnetism-isolating loop 13, the right side
Bearing 16 is arranged on the right side of right magnetism-isolating loop 14.
The pole tooth I7 is arranged at intervals 1-10, and the pole tooth II8 corresponds to pole tooth I7 and is arranged at intervals 1-10.
The pole tooth IV 10 is arranged at intervals 1-10；The pole tooth III9 corresponds to pole tooth IV 10 and is arranged at intervals 1-10
It is a.
Claims (7)
1. a kind of radial direction socket type labyrinth type device for sealing magnetic fluid, including axis（1）, shell（2）, left pole shoe ring（3）, right pole shoe
Ring（4）, sleeve（5）, magnet ring（6）, it is characterised in that：
The left pole shoe ring（3）With right pole shoe ring（4）Interval is arranged on shell（2）It is interior, left pole shoe ring（3）With right pole shoe ring（4）
Periphery and shell（2）Inner wall be in contact, left pole shoe ring（3）With right pole shoe ring（4）Inner headed face radially to axis（1）'s
Periphery extends, with axis（1）Periphery between leave gap；
The sleeve（5）It is set in axis（1）On, positioned at left pole shoe ring（3）With right pole shoe ring（4）Between；The permanent magnet
Ring（6）Arranged on shell（2）It is interior, positioned at left pole shoe ring（3）With right pole shoe ring（4）Between, respectively with left pole shoe ring（3）With right pole shoe
Ring（4）Contact, magnet ring（6）Periphery and shell（2）Inner wall contact；The sleeve（5）Periphery and permanent magnetism
Body ring（6）Inner headed face between leave gap；
The left pole shoe ring（3）Right side on be arranged at intervals pole tooth I（7）；The sleeve（5）Left side on be spaced and set
Put pole tooth II（8）, pole tooth III is arranged at intervals on right side（9）；The right pole shoe ring（4）Left side on be arranged at intervals pole
Tooth IV（10）；
The pole tooth I（7）Vertically to sleeve（5）Left side extension, with sleeve（5）Left side between leave gap,
Magnetic fluid is equipped with the gap；The pole tooth II（8）Pole shoe ring to the left vertically（3）Right side extension, with left pole shoe ring
（3）Right side between leave gap, magnetic fluid is equipped with the gap；The pole tooth I（7）With pole tooth II（8）It is interspersed,
And do not contact between each other；
The pole tooth IV（10）Vertically to sleeve（5）Right side extension, with sleeve（5）Right side between leave between
Gap, is equipped with magnetic fluid in the gap；The pole tooth III（9）Pole shoe ring to the right vertically（4）Left side extension, with right pole
Boots ring（4）Left side between leave gap, magnetic fluid is equipped with the gap；The pole tooth IV（10）With pole tooth III（9）Hand over
Mistake distribution, and do not contact between each other.
2. radial direction socket type labyrinth type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：The left pole shoe
Ring（3）With right pole shoe ring（4）Periphery be equipped with annular groove（11）, the annular groove I（11）It is interior to be equipped with sealing ring
（12）.
3. radial direction socket type labyrinth type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：The permanent magnet
Ring（6）For axial charging permanent magnet.
4. radial direction socket type labyrinth type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：A left side is further included every magnetic
Ring（13）With right magnetism-isolating loop（14）；The left magnetism-isolating loop（13）Arranged on left pole shoe（3）Left side, be close to shell（2）Inner wall
Set；The right magnetism-isolating loop（14）Arranged on right pole shoe（5）Right side, be close to shell（2）Inner wall set.
5. radial direction socket type labyrinth type device for sealing magnetic fluid as claimed in claim 4, it is characterised in that：Further include left bearing
（15）And right bearing（16）, the left bearing（15）And right bearing（16）It is set with axis（1）On, the left bearing
（15）Arranged on left magnetism-isolating loop（13）Left side, the right bearing（16）Arranged on right magnetism-isolating loop（14）Right side.
6. radial direction socket type labyrinth type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：The pole tooth I
（7）1-10 are arranged at intervals, the pole tooth II（8）Corresponding pole tooth I（7）It is arranged at intervals 1-10.
7. radial direction socket type labyrinth type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：The pole tooth IV
（10）It is arranged at intervals 1-10；The pole tooth III（9）Corresponding pole tooth IV（10）It is arranged at intervals 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711333747.9A CN107956883A (en) | 2017-12-14 | 2017-12-14 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711333747.9A CN107956883A (en) | 2017-12-14 | 2017-12-14 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107956883A true CN107956883A (en) | 2018-04-24 |
Family
ID=61958810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711333747.9A Withdrawn CN107956883A (en) | 2017-12-14 | 2017-12-14 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107956883A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869754A (en) * | 2018-08-13 | 2018-11-23 | 广西科技大学 | A kind of leakproof magnetic-type magnetic fluid sealing structure |
| CN109027251A (en) * | 2018-09-03 | 2018-12-18 | 广西科技大学 | A kind of plagiodont device for sealing magnetic fluid |
| CN109210205A (en) * | 2018-10-24 | 2019-01-15 | 广西科技大学 | A kind of telescopic device for sealing magnetic fluid of magnetic guiding loop |
| CN109780218A (en) * | 2019-01-31 | 2019-05-21 | 广西科技大学 | A kind of pair of tooth punching staged device for sealing magnetic fluid |
| CN110748647A (en) * | 2019-10-30 | 2020-02-04 | 北京交通大学 | Boss type magnetic liquid sealing device |
| CN110762224A (en) * | 2019-11-25 | 2020-02-07 | 广西科技大学 | Divergent split-tooth stepped magnetic fluid rotary sealing device |
| CN112178204A (en) * | 2020-10-26 | 2021-01-05 | 清华大学 | Labyrinth type magnetic liquid sealing device |
| CN114251369A (en) * | 2021-11-25 | 2022-03-29 | 广西科技大学 | Magnetic fluid sealing device for bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0596269A1 (en) * | 1992-10-08 | 1994-05-11 | Ferrofluidics Corporation | Ferrofluidic seal centering ring |
| JPH0663966U (en) * | 1993-02-16 | 1994-09-09 | 西芝電機株式会社 | Magnetic fluid sealing device |
| CN2447582Y (en) * | 2000-11-03 | 2001-09-12 | 罗喜梅 | Magnetofluid seal driving device for vacuum equipment driving shaft |
| CN103148220A (en) * | 2013-03-27 | 2013-06-12 | 北京交通大学 | Magnetic liquid rotary sealing device |
| CN205841774U (en) * | 2016-07-29 | 2016-12-28 | 广西科技大学 | A kind of zigzag tooth end-surface type magnetic fluid seal device |
| CN207634700U (en) * | 2017-12-14 | 2018-07-20 | 广西科技大学 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
-
2017
- 2017-12-14 CN CN201711333747.9A patent/CN107956883A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0596269A1 (en) * | 1992-10-08 | 1994-05-11 | Ferrofluidics Corporation | Ferrofluidic seal centering ring |
| JPH0663966U (en) * | 1993-02-16 | 1994-09-09 | 西芝電機株式会社 | Magnetic fluid sealing device |
| CN2447582Y (en) * | 2000-11-03 | 2001-09-12 | 罗喜梅 | Magnetofluid seal driving device for vacuum equipment driving shaft |
| CN103148220A (en) * | 2013-03-27 | 2013-06-12 | 北京交通大学 | Magnetic liquid rotary sealing device |
| CN205841774U (en) * | 2016-07-29 | 2016-12-28 | 广西科技大学 | A kind of zigzag tooth end-surface type magnetic fluid seal device |
| CN207634700U (en) * | 2017-12-14 | 2018-07-20 | 广西科技大学 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869754A (en) * | 2018-08-13 | 2018-11-23 | 广西科技大学 | A kind of leakproof magnetic-type magnetic fluid sealing structure |
| CN109027251A (en) * | 2018-09-03 | 2018-12-18 | 广西科技大学 | A kind of plagiodont device for sealing magnetic fluid |
| CN109210205A (en) * | 2018-10-24 | 2019-01-15 | 广西科技大学 | A kind of telescopic device for sealing magnetic fluid of magnetic guiding loop |
| CN109210205B (en) * | 2018-10-24 | 2020-07-21 | 广西科技大学 | Magnetic conductive ring sleeve type magnetic fluid sealing device |
| CN109780218A (en) * | 2019-01-31 | 2019-05-21 | 广西科技大学 | A kind of pair of tooth punching staged device for sealing magnetic fluid |
| CN110748647A (en) * | 2019-10-30 | 2020-02-04 | 北京交通大学 | Boss type magnetic liquid sealing device |
| CN110748647B (en) * | 2019-10-30 | 2021-02-12 | 北京交通大学 | Boss type magnetic liquid sealing device |
| CN110762224A (en) * | 2019-11-25 | 2020-02-07 | 广西科技大学 | Divergent split-tooth stepped magnetic fluid rotary sealing device |
| CN112178204A (en) * | 2020-10-26 | 2021-01-05 | 清华大学 | Labyrinth type magnetic liquid sealing device |
| CN112178204B (en) * | 2020-10-26 | 2022-02-25 | 清华大学 | Labyrinth type magnetic liquid sealing device |
| CN114251369A (en) * | 2021-11-25 | 2022-03-29 | 广西科技大学 | Magnetic fluid sealing device for bearing |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180424 |
|
| WW01 | Invention patent application withdrawn after publication |