CN107830178A - A kind of mixed type reciprocating sealing device - Google Patents
A kind of mixed type reciprocating sealing device Download PDFInfo
- Publication number
- CN107830178A CN107830178A CN201711327703.5A CN201711327703A CN107830178A CN 107830178 A CN107830178 A CN 107830178A CN 201711327703 A CN201711327703 A CN 201711327703A CN 107830178 A CN107830178 A CN 107830178A
- Authority
- CN
- China
- Prior art keywords
- ring
- pole shoe
- flux sleeve
- shell
- annular groove
- 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.)
- Pending
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
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
Abstract
The present invention relates to a kind of mixed type reciprocating sealing device, including axle, shell, outer ring flux sleeve, inner ring flux sleeve, left pole shoe ring, middle pole shoe, right pole shoe ring, magnet ring, described axle to extend across whole shell from the end wall of shell；Described outer ring flux sleeve is in shell；Described inner ring flux sleeve is set in axle, within the scope of the flux sleeve of outer ring；The outer wall both ends of described inner ring flux sleeve are respectively equipped with left pole shoe ring and right pole shoe ring；The axially spaced middle pole shoe for setting more than one group, is provided with magnet ring on the outer wall of inner ring flux sleeve between described left pole shoe ring and right pole shoe ring between described left pole shoe ring, middle pole shoe, right pole shoe ring.Described left pole shoe ring, middle pole shoe, the periphery of right pole shoe ring are provided with pole tooth.The purpose of the present invention solves the low problem of pressure-resistant performance existing for existing single magnetic source device for sealing magnetic fluid and more magnetic source device for sealing magnetic fluid.
Description
Technical field
The invention belongs to sealing field of mechanical engineering, and in particular to a kind of mixed type reciprocating sealing device.
Background technology
Many defects also be present due to technology also imperfection in reciprocation sealing:Magnetic liquid easily leaks out.Moved back and forth in axle
In, vigorous attached, formation liquid film can occur for partially liq；When magnetic field force is not enough to fetter this tunic, magnetic liquid will press
Difference effect is lower to enter secret room, pollutes；Operating temperature range is smaller.Because liquid viscosity declines under high temperature, resistance to pressure declines,
So refrigeration measure should be coordinated；Voltage endurance capability is caused to reduce by leakage.As a whole, this technological merit is exclusive, and
As people are studied its further inquires into, these drawbacks can be addressed.Therefore magnetic liquid reciprocating shaft seal technology
With very high value and broader development prospect.
One of method for improving the pressure-resistant performance of magnetic fluid seal is the number by increasing magnetic source in magnet fluid sealing magnetic circuit
Measure and improve the shape of pole shoe, sealing device as described in documents 1 (Publication No. CN105003654A patent) and right
Than the sealing device described in document 2 (Publication No. CN206617583U patent).Although two kinds of sealings described in document above
The relatively common magnetic fluid seal performance of device is greatly improved, but existing sealing structure not only can be used for rotatory sealing
The sealing of reciprocal axle is additionally operable to, its sealing property still has the space further improved.
The content of the invention
It is an object of the invention to provide a kind of mixed type reciprocating sealing device, so as to solve existing single magnetic source magnet fluid sealing
The low problem of pressure-resistant performance existing for device and more magnetic source device for sealing magnetic fluid, while reduce stress concentration so that the sealing
Technology is successfully applied in the fields such as engineering machinery reciprocating shaft seal.
Technical scheme is as follows：
Described mixed type reciprocating sealing device, including axle, shell, outer ring flux sleeve, inner ring flux sleeve, left pole shoe ring, centre
Pole shoe, right pole shoe ring, magnet ring, described axle extend across whole shell, the end of described shell from the end wall of shell
The inner headed face of wall is in contact with the periphery of axle；
In shell, the outer wall of outer ring flux sleeve is in contact described outer ring flux sleeve with the inwall of shell；Described inner ring
Flux sleeve is set with and axle, within the scope of the flux sleeve of outer ring；
The outer wall both ends of described inner ring flux sleeve are respectively equipped with left pole shoe ring and right pole shoe ring, described left pole shoe ring and right pole
The inner headed face of boots ring is in contact with the periphery of inner ring flux sleeve；Inner ring magnetic conduction between described left pole shoe ring and right pole shoe ring
The axially spaced middle pole shoe for setting more than one group on the outer wall of set, inner headed face and the inner ring flux sleeve of described middle pole shoe
Periphery be in contact；Be provided with magnet ring between described left pole shoe ring and adjacent middle pole shoe, it is described it is adjacent in
Between be provided with magnet ring between pole shoe, magnet ring is provided between described right pole shoe ring and adjacent middle pole shoe；
Described left pole shoe ring, middle pole shoe, the periphery of right pole shoe ring are provided with pole tooth, and described pole tooth radially encloses
The inner headed face extension of flux sleeve, leaves gap between the inner headed face of outer ring flux sleeve, magnetic fluid is provided with the gap.
Described left pole shoe ring, middle pole shoe, the inner headed face of right pole shoe ring are provided with annular groove I, and described is annular recessed
Sealing ring I is provided with groove I.
Described magnet ring periphery is provided with more than one spaced annular groove II, and described is annular recessed
Y-type seal ring I is provided with groove II.
The centre of the periphery of described middle pole shoe is provided with annular groove III, and described pole tooth position is in annular groove III
Both sides；Y-type seal ring II is provided with described annular groove III.
The inner headed face of the end wall of described shell is provided with more than one spaced annular groove IV, described annular
Y-type seal ring III is provided with groove IV.
Described magnet ring is axial charging permanent magnet, is arranged at intervals 2-10.
The described adjacent magnet ring magnetic line of force is in opposite direction.
Present invention seek to address that existing technological deficiency, there is provided a kind of mixed type reciprocating sealing device, the sealing device
Can solve past motion seal condition lower sealing device voltage endurance capability deficiency, reliability is low and the problem such as short life.Pass through design one
The structure that kind y-type seal ring organically combines with magnet fluid sealing, pole shoe inner ring surface opens up pole tooth, permanent magnet outer ring surface opens up pole
Tooth, y-type seal ring be arranged on pole shoe inner ring surface on on the outer ring surface of permanent magnet, so as to realize a kind of magnet fluid sealing and rubber
The combination sealing mode of glue sealing.The present invention is on the basis of single magnet fluid sealing, by setting multistage magnetic source and improving pole shoe
The distribution of upper y-type seal ring, while the form on permanent magnet is placed on, so that magnet fluid sealing voltage endurance capability increases
By force；The loss of magnetic fluid when the sealing structure of y-type seal ring can reduce seal failure, while maximumlly improve sealing ring
Service life, convenient production and processing, while add the secondary bearing capacity and self-reparing capability of sealing device.Magnetic fluid
Zero leakage function can be realized with auxiliary seal ring, the effect of uniqueness is respectively provided with simultaneously for the dust-proof of sealing ring and lubrication, enters one
Step improves existing reciprocating sealing device and sealing reliability, expands its range of safety operation.
Magnet fluid sealing is to produce magnetic field force in seal clearance using permanent magnet magnetic fluid is secured firmly between sealing
In gap, the pressure difference of both sides is resisted, so as to reach the effect of sealing；Lip packing may be used as bar sealing, and to be also used as piston close
Envelope, this seal are type sealings of energizing, and Fluid pressure is automatically loaded on seal lip, so the Fluid pressure sealed
During increase, sealing effectiveness also can guarantee that.
Brief description of the drawings
Fig. 1 is the structural representation of sealing device of the present invention;
Each sequence number sign and corresponding title are as follows in figure：
1- axles, 2- shells, 3- outer rings flux sleeve, 4- inner ring flux sleeves, the left pole shoe rings of 5-, 6- centres pole shoe, the right pole shoe rings of 7-, 8-
Magnet ring, 9- poles tooth, 10- annular grooves I, 11- sealing ring I, 12- annular groove II, 13-Y type sealing ring II, 14- annular
Groove III, 15-sealing ring II, 16-- annular groove IV, 17-Y type sealing rings III.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, described mixed type reciprocating sealing device, including axle 1, shell 2, outer ring flux sleeve 3, inner ring magnetic conduction
Set 4, left pole shoe ring 5, middle pole shoe 6, right pole shoe ring 7, magnet ring 8, the end wall of described axle 1 from shell 2 extend across
Whole shell 2, the inner headed face of the end wall of described shell 2 are in contact with the periphery of axle 1；
In shell 2, the outer wall of outer ring flux sleeve 3 is in contact described outer ring flux sleeve 3 with the inwall of shell 2；Described
Inner ring flux sleeve 4 is set on axle 1, within the scope of outer ring flux sleeve 3；
The outer wall both ends of described inner ring flux sleeve 4 are respectively equipped with left pole shoe ring 4 and right pole shoe ring 5, the described He of left pole shoe ring 4
The inner headed face of right pole shoe ring 5 is in contact with the periphery of inner ring flux sleeve 4；Between described left pole shoe ring 3 and right pole shoe ring 5
The axially spaced middle pole shoe 6 for setting more than one group, the inner headed face of described middle pole shoe 6 on the outer wall of inner ring flux sleeve 4
It is in contact with the periphery of inner ring flux sleeve 4；Magnet ring is provided between described left pole shoe ring 4 and adjacent middle pole shoe 6
8, magnet ring 8 is provided between described adjacent middle pole shoe 6, between described right pole shoe ring 5 and adjacent middle pole shoe 6
Provided with magnet ring 8；
Described left pole shoe ring 5, middle pole shoe 6, the periphery of right pole shoe ring 7 are provided with pole tooth 9, and described pole tooth 9 is radially
Extend to the inner headed face of outer ring flux sleeve 3, leave gap between the inner headed face of outer ring flux sleeve 3, magnetic current is provided with the gap
Body.
Described left pole shoe ring 5, middle pole shoe 6, the inner headed face of right pole shoe ring 7 are provided with annular groove I10, described ring
Sealing ring I11 is provided with connected in star I10.
The described periphery of magnet ring 8 is provided with more than one spaced annular groove II12, described ring
Y-type seal ring I13 is provided with connected in star II12.
The centre of the periphery of described middle pole shoe 6 is provided with annular groove III14, and described pole tooth 9 is recessed positioned at annular
Groove III14 both sides；Y-type seal ring II15 is provided with described annular groove III14.
The inner headed face of the end wall of described shell 2 is provided with more than one spaced annular groove IV 16, described
Y-type seal ring III17 is provided with annular groove IV 16.
Described magnet ring 8 is that axial charging permanent magnet is arranged at intervals 2-10.
The described adjacent magnetic line of force of magnet ring 8 is in opposite direction.
Claims (7)
1. a kind of mixed type reciprocating sealing device, including axle（1）, shell（2）, outer ring flux sleeve（3）, inner ring flux sleeve（4）, it is left
Pole shoe ring（5）, middle pole shoe（6）, right pole shoe ring（7）, magnet ring（8）, described axle（1）From shell（2）End wall extension
And pass through whole shell（2）, described shell（2）End wall inner headed face and axle（1）Periphery be in contact, its feature exists
In：
Described outer ring flux sleeve（3）Located at shell（2）It is interior, outer ring flux sleeve（3）Outer wall and shell（2）Inwall connect
Touch；Described inner ring flux sleeve（4）It is set in axle（1）On, positioned at outer ring flux sleeve（3）Within the scope of；
Described inner ring flux sleeve（4）Outer wall both ends be respectively equipped with left pole shoe ring（5）With right pole shoe ring（7）, described left pole
Boots ring（5）With right pole shoe ring（7）Inner headed face and inner ring flux sleeve（4）Periphery be in contact；Described left pole shoe ring（5）With
Right pole shoe ring（7）Between inner ring flux sleeve（4）Outer wall on axially spaced more than one group of middle pole shoe is set（6）, institute
The middle pole shoe stated（6）Inner headed face and inner ring flux sleeve（4）Periphery be in contact；Described left pole shoe ring（5）With it is adjacent
Middle pole shoe（6）Between be provided with magnet ring（8）, described adjacent middle pole shoe（6）Between be provided with magnet ring（8）,
Described right pole shoe ring（7）With adjacent middle pole shoe（6）Between be provided with magnet ring（8）；
Described left pole shoe ring（5）, middle pole shoe（6）, right pole shoe ring（7）Periphery be provided with pole tooth（9）, described pole tooth
（9）Radially enclose flux sleeve（3）Inner headed face extension, with outer ring flux sleeve（3）Inner headed face between leave gap, should between
Magnetic fluid is provided with gap.
2. mixed type reciprocating sealing device as claimed in claim 1, it is characterised in that：Described left pole shoe ring（5）, dynode
Boots（6）, right pole shoe ring（7）Inner headed face be provided with annular groove I（10）, described annular groove I（10）It is interior to be provided with sealing ring I
（11）.
3. mixed type reciprocating sealing device as claimed in claim 1, it is characterised in that：Described magnet ring（8）Periphery
Be provided with more than one spaced annular groove II（12）, described annular groove II（12）It is interior to be provided with y-type seal ring I
（13）.
4. mixed type reciprocating sealing device as claimed in claim 1, it is characterised in that：Described middle pole shoe（6）It is cylindrical
The centre in face is provided with annular groove III（14）, described pole tooth（9）Positioned at annular groove III（14）Both sides；Described annular
Groove III（14）It is interior to be provided with y-type seal ring II（15）.
5. mixed type reciprocating sealing device as claimed in claim 1, it is characterised in that：Described shell（2）End wall it is interior
Disc is provided with more than one spaced annular groove IV（16）, described annular groove IV（16）The interior Y types that are provided with seal
Enclose III（17）.
6. mixed type reciprocating sealing device as claimed in claim 1, it is characterised in that：Described magnet ring（8）For axial direction
Charging permanent magnet, it is arranged at intervals 2-10.
7. mixed type reciprocating sealing device as claimed in claim 6, it is characterised in that：Described adjacent magnet ring（8）
The magnetic line of force is in opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327703.5A CN107830178A (en) | 2017-12-13 | 2017-12-13 | A kind of mixed type reciprocating sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327703.5A CN107830178A (en) | 2017-12-13 | 2017-12-13 | A kind of mixed type reciprocating sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107830178A true CN107830178A (en) | 2018-03-23 |
Family
ID=61644298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711327703.5A Pending CN107830178A (en) | 2017-12-13 | 2017-12-13 | A kind of mixed type reciprocating sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830178A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214194A1 (en) * | 2018-05-08 | 2019-11-14 | 清华大学 | Combined seal of magnetic fluid and lip seal |
| CN111422046A (en) * | 2020-04-22 | 2020-07-17 | 东风汽车集团有限公司 | Magnetic glass guide groove sealing strip and sealing system |
| CN111963688A (en) * | 2020-08-12 | 2020-11-20 | 清华大学 | Multistage multipolar magnetic powder sealing device |
| CN112112973A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Combined sealing device of magnetorheological fluid and magnetic liquid |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51120354A (en) * | 1975-04-14 | 1976-10-21 | Shimazaki Seisakusho:Kk | Axis sealer device |
| JPH05149443A (en) * | 1991-11-27 | 1993-06-15 | Tokyo Electron Ltd | Magnetic fluid seal device |
| CN2389259Y (en) * | 1999-09-24 | 2000-07-26 | 甘肃工业大学 | Spiral tooth magnetic fluid sealing mechanism |
| CN104455462A (en) * | 2014-09-29 | 2015-03-25 | 北京交通大学 | Magnetic liquid sealing device with labyrinth structure formed in pole shoes |
| CN204267737U (en) * | 2014-09-29 | 2015-04-15 | 北京交通大学 | A kind of magnet is opened the magnetic fluid seal device of labyrinth structure |
| CN204852354U (en) * | 2015-07-21 | 2015-12-09 | 北京交通大学 | New installation of sealed heat transfer of reinforcing magnetic fluid |
-
2017
- 2017-12-13 CN CN201711327703.5A patent/CN107830178A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51120354A (en) * | 1975-04-14 | 1976-10-21 | Shimazaki Seisakusho:Kk | Axis sealer device |
| JPH05149443A (en) * | 1991-11-27 | 1993-06-15 | Tokyo Electron Ltd | Magnetic fluid seal device |
| CN2389259Y (en) * | 1999-09-24 | 2000-07-26 | 甘肃工业大学 | Spiral tooth magnetic fluid sealing mechanism |
| CN104455462A (en) * | 2014-09-29 | 2015-03-25 | 北京交通大学 | Magnetic liquid sealing device with labyrinth structure formed in pole shoes |
| CN204267737U (en) * | 2014-09-29 | 2015-04-15 | 北京交通大学 | A kind of magnet is opened the magnetic fluid seal device of labyrinth structure |
| CN204852354U (en) * | 2015-07-21 | 2015-12-09 | 北京交通大学 | New installation of sealed heat transfer of reinforcing magnetic fluid |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214194A1 (en) * | 2018-05-08 | 2019-11-14 | 清华大学 | Combined seal of magnetic fluid and lip seal |
| CN111422046A (en) * | 2020-04-22 | 2020-07-17 | 东风汽车集团有限公司 | Magnetic glass guide groove sealing strip and sealing system |
| CN111963688A (en) * | 2020-08-12 | 2020-11-20 | 清华大学 | Multistage multipolar magnetic powder sealing device |
| CN112112973A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Combined sealing device of magnetorheological fluid and magnetic liquid |
| CN112112973B (en) * | 2020-10-30 | 2021-06-04 | 清华大学 | Combined sealing device of magnetorheological fluid and magnetic liquid |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180323 |