CN109210205A - A kind of telescopic device for sealing magnetic fluid of magnetic guiding loop - Google Patents
A kind of telescopic device for sealing magnetic fluid of magnetic guiding loop Download PDFInfo
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- CN109210205A CN109210205A CN201811241396.3A CN201811241396A CN109210205A CN 109210205 A CN109210205 A CN 109210205A CN 201811241396 A CN201811241396 A CN 201811241396A CN 109210205 A CN109210205 A CN 109210205A
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- magnet ring
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- magnet
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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
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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 telescopic device for sealing magnetic fluid of magnetic guiding loop, including shell, it is made of more than one magnet fluid sealing unit, the magnet fluid sealing unit includes left sleeve, right sleeve, intermediate sleeve, left magnetic guiding loop, right magnetic guiding loop, the first from left magnet ring, the second from left magnet ring, intermediate magnet ring, a right magnet ring, right two magnet rings.Of the invention solves the problems, such as assembly difficulty in existing apparatus, the lower problem of pressure resistance performance existing for existing sealing device is solved simultaneously, the design of its middle sleeve saves space, while increasing magnetic conduction ability, 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 telescopic device for sealing magnetic fluid of magnetic guiding loop.
Background technique
Traditional sealing technique of the Magneticfluid Seal Technique in static seal and high pressure dynamic sealing has obtained mature
Using being less than or equal in the dynamic sealing occasion of 100mm and radial seal clearance height less than or equal to 0.3mm in shaft diameter, magnetic
Fluid seals technology is also mature to be used.But when radial seal clearance height is greater than 0.4mm, sealing performance can be with the increasing in gap
It fails greatly and gradually, therefore the leakage of mechanical equipment has great importance under the conditions of solution wide arc gap.
Therefore by improving magnetic fluid seal structure as the side for improving wide arc gap magnetic Fluid Sealing pressure resistance performance
Method, the sealing device as described in documents (patent of Publication No. CN 103115152A) is although close as described in document above
The relatively common magnetic fluid seal performance of seal apparatus is greatly improved, but the sealing performance of existing sealing structure still has into one
Walk the space improved.
The structure design of magnet fluid sealing is affected to sealing voltage endurance capability, rationally designs the sealing knot of magnetic fluid
Structure can effectively improve sealing voltage endurance capability；Magnet fluid sealing is to generate magnetic field force in seal clearance using permanent magnet to incite somebody to action
Magnetic fluid is secured firmly in seal clearance, resists the pressure difference of two sides, to achieve the effect that sealing.
Summary of the invention
The object of the present invention is to provide a kind of telescopic device for sealing magnetic fluid of magnetic guiding loop, solve in existing apparatus and assemble
Difficult problem, while the lower problem of pressure resistance performance existing for existing sealing device is solved, the design of middle sleeve saves
Space, while magnetic conduction ability is increased, so that the sealing technique is successfully applied in the fields such as high-speed overload.
Technical scheme is as follows:
The telescopic device for sealing magnetic fluid of the magnetic guiding loop, including shell；
It is made of more than one magnet fluid sealing unit, the magnet fluid sealing unit includes left sleeve, right sleeve, centre
Sleeve, left magnetic guiding loop, right magnetic guiding loop, the first from left magnet ring, the second from left magnet ring, intermediate magnet ring, right a magnet ring, the right side
Two magnet rings；
The left sleeve, right sleeve are threadedly coupled mode loaded on axis；Centre is equipped between the left sleeve, right sleeve
Magnet ring, the intermediate magnet ring are set on axis；The intermediate sleeve is set in centre forever by interference fit
On the periphery of magnet ring；
The left magnetic guiding loop, right magnetic guiding loop are respectively arranged on the inner wall of shell, and left magnetic guiding loop, right magnetic guiding loop phase mutual connection
Touching；
The left end of the left magnetic guiding loop is equipped with the bulge loop I radially axially extended；On the right side of the bulge loop I
Part close to its inner headed face is corresponded to each other with the part on intermediate sleeve left side close to its periphery, and is stayed between the two
There is spacing；The left side of the intermediate sleeve is equipped with annular groove I；The second from left magnet ring is set in annular groove I, the second from left
Magnet ring extends along axial direction to the right side of bulge loop I, there are gap between the right side of bulge loop I, fills magnetic in the gap
Fluid is sealed；
The right end of the right magnetic guiding loop is equipped with the bulge loop II radially axially extended；The left side of the bulge loop II
The upper part close to its inner headed face is corresponded to each other with the part on intermediate sleeve right side close to its periphery, and between the two
There are spacing；The right side of the intermediate sleeve is equipped with annular groove II；Two magnet ring of the right side is set in annular groove II,
Right two magnet rings extend along axial direction to the left side of bulge loop II, there are gap between the left side of bulge loop II, in the gap
Filling magnetic fluid is sealed；
The left end of the left sleeve is equipped with the bulge loop III radially axially extended；The right side of the bulge loop III
Paraxial part is leaned on to correspond to each other on intermediate sleeve left side, and there are spacing between the two；The right side of the bulge loop III
End face is equipped with annular groove III；The first from left magnet ring is set in annular groove III, and the first from left magnet ring is along axial direction to centre
The left side of sleeve extends, and there are gap between the left side of intermediate sleeve, filling magnetic fluid is sealed in the gap；
The right end of the right sleeve is equipped with the bulge loop IV radially axially extended；The left side of the bulge loop IV with
It is corresponded to each other on intermediate sleeve right side by paraxial part, and there are spacing between the two；The left end of the bulge loop IV
Face is equipped with annular groove IV；One magnet ring of the right side is set in the annular groove IV, and a right magnet ring is along axial direction to intermediate sleeve
The right extension in left end, there are gap between the right side of intermediate sleeve, filling magnetic fluid is sealed in the gap.
The magnet fluid sealing unit is equipped with 1-5 group.
Quantity of the left side of the intermediate sleeve equipped with annular groove I is 4-8, and the second from left permanent magnet correspondence is set
Set 4-8；Quantity of the right side of the intermediate sleeve 5 equipped with annular groove II is 4-8, two magnet ring pair of the right side
4-8 should be arranged；Quantity of the right side of the bulge loop III equipped with annular groove III is 4-8, the first from left permanent magnet
Ring is correspondingly arranged 4-8；The quantity that the left side of the bulge loop IV is equipped with annular groove IV is 4-8, one permanent magnetism of the right side
Body ring is correspondingly arranged 4-8.
The sum of the left magnetic guiding loop, right magnetic guiding loop axial length are greater than the axis of left sleeve, right sleeve, intermediate magnet ring
To the sum of length.
The axial length of the intermediate sleeve is identical as the intermediate axial length of magnet ring.
The size in the gap between the right side of the second from left magnet ring and bulge loop I is 0.05 ~ 3mm；The right side
The size in the gap between two magnet rings and the left side of bulge loop II is 0.05 ~ 3mm；The first from left magnet ring and centre
The size in the gap between the left side of sleeve is 0.05 ~ 3mm；The right side of the right side one magnet ring and intermediate sleeve
Between gap size be 0.05 ~ 3mm.
The first from left magnet ring, the second from left magnet ring, intermediate magnet ring, a right magnet ring, right two permanent magnets
Ring is axial charging type magnet ring；
The first from left magnet ring, the magnetic line of force of the second from left magnet ring are contrary, a right magnet ring, right two permanent magnetism
The magnetic line of force of body ring is contrary, and the first from left magnet ring, the magnetic line of force direction of a right magnet ring are identical；The left side
Two magnet rings, the magnetic line of force direction of right two magnet rings are identical；The magnetic force of the intermediate magnet ring, the second from left magnet ring
Line direction is identical.
The telescopic device for sealing magnetic fluid of the magnetic guiding loop further includes left magnetism-isolating loop, right magnetism-isolating loop；The left side is every magnetic
Ring and right magnetism-isolating loop are set on the inner wall of shell, and left magnetism-isolating loop is located at the left side of left magnetic guiding loop, and right magnetism-isolating loop is located at right magnetic guiding loop
Right side.
The telescopic device for sealing magnetic fluid of the magnetic guiding loop, further includes left bearing and right bearing, the left bearing and
Right bearing is set on axis, and the left bearing is set on the left of left magnetism-isolating loop, is contacted with left magnetism-isolating loop；The right bearing
Set on the right side of right magnetism-isolating loop, contacted with right magnetism-isolating loop.
The present invention is axially grooved by sleeve, is embedded in the permanent magnet of axial charging in groove in an interference fit, set
It is put into multiple permanent magnets in the groove of cylinder, recycles magnetic guiding loop, makes the circuit for forming closure between all permanent magnets, thus shape
At a kind of telescopic magnetic fluid sealing structure of magnetic guiding loop.The present invention uses the telescopic device for sealing magnetic fluid structure of magnetic guiding loop, increases
Magnetic flux in big closed circuit, effectively reduces the loss of the magnetic fluid in seal failure, while reducing answering for axis
Power is concentrated, and fairly simple convenience is assembled, to substantially increase under the conditions of wide arc gap the voltage endurance capability of magnetic fluid seal and close
Reliability is sealed, while increasing the secondary bearing capacity and self-reparing capability of sealing device again, expands its range of safety operation.
The present invention passes through the first from left magnet ring, the second from left magnet ring, intermediate magnet ring, a right magnet ring, the right side two forever
Layout is arranged in the magnetic line of force direction of magnet ring, it is ensured that the formation of multilayer magnetic loop enables magnetic fluid in corresponding gap
It is more firm to exist.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the telescopic device for sealing magnetic fluid of magnetic guiding loop provided in an embodiment of the present invention；
Each serial number mark and corresponding title are as follows in figure:
1- axis, 2- shell, 3- left sleeve, the right sleeve of 4-, 5- intermediate sleeve, the left magnetic guiding loop of 6-, the right magnetic guiding loop of 7-, 8- the first from left permanent magnetism
Body ring, 9- the second from left magnet ring, the centre 10- magnet ring, one magnet ring of the right side 11-, two magnet rings of the right side 12-, 13- bulge loop I,
14- bulge loop II, 15- bulge loop III, 16- bulge loop IV, the left magnetism-isolating loop of 17-, the right magnetism-isolating loop of 18-, 19- left bearing, 20- right bearing,
21- end cap.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, the telescopic device for sealing magnetic fluid of the magnetic guiding loop, including shell 2；
Be made of more than one magnet fluid sealing unit, the magnet fluid sealing unit include left sleeve 3, right sleeve 4, in
Between sleeve 5, left magnetic guiding loop 6, right magnetic guiding loop 7, the first from left magnet ring 8, the second from left magnet ring 9, intermediate magnet ring 10, the right side one forever
Magnet ring 11, right two magnet rings 12；
The left sleeve 3, right sleeve 4 are threadedly coupled mode loaded on axis 1；It is set between the left sleeve 3, right sleeve 4
There is intermediate magnet ring 10, the intermediate magnet ring 10 is set on axis 1；The intermediate sleeve 5 passes through interference fit
It is set on the periphery of intermediate magnet ring 10；
The left magnetic guiding loop 6, right magnetic guiding loop 7 are respectively arranged on the inner wall of shell 2, and left magnetic guiding loop 6,7 phase of right magnetic guiding loop
Mutually contact；
The left end of the left magnetic guiding loop 6 is equipped with the bulge loop I13 radially extended to 1 direction of axis；The right side of the bulge loop I13
It is corresponded to each other close to the part of its inner headed face with the part on 5 left side of intermediate sleeve close to its periphery on end face, and two
There are spacing between person；The left side of the intermediate sleeve 5 is equipped with annular groove I；The second from left magnet ring 9 is set to the ring
In slot I, the second from left magnet ring 9 extends along axial direction to the right side of bulge loop I13, there are gap between the right side of bulge loop I13,
Magnetic fluid is filled in the gap to be sealed；
The right end of the right magnetic guiding loop 7 is equipped with the bulge loop II14 radially extended to 1 direction of axis；The bulge loop II14's
It is corresponded to each other close to the part of its inner headed face with the part on 5 right side of intermediate sleeve close to its periphery on left side, and
There are spacing between the two；The right side of the intermediate sleeve 5 is equipped with annular groove II；Two magnet ring 12 of the right side is set to
In annular groove II, right two magnet rings 12 extend along axial direction to the left side of bulge loop II14, between the left side of bulge loop II14
Magnetic fluid is filled there are gap, in the gap to be sealed；
The left end of the left sleeve 3 is equipped with the bulge loop III15 radially extended to 1 direction of axis；The bulge loop III15's
Right side leans on paraxial 1 part to correspond to each other on 5 left side of intermediate sleeve, and there are spacing between the two；Described is convex
The right side of ring III15 is equipped with annular groove III；The first from left magnet ring 8 is set in annular groove III, the first from left magnet ring 8
Extend along axial direction to the left side of intermediate sleeve 5, there are gap between the left side of intermediate sleeve 5, fills magnetic in the gap
Fluid is sealed；
The right end of the right sleeve 4 is equipped with the bulge loop IV 16 radially extended to 1 direction of axis；A left side for the bulge loop IV 16
End face leans on paraxial 1 part to correspond to each other on 5 right side of intermediate sleeve, and there are spacing between the two；The bulge loop
IV 16 left side is equipped with annular groove IV；One magnet ring 11 of the right side is set in the annular groove IV, 11 edge of a right magnet ring
It is axial to the right extension in the left end of intermediate sleeve 5, there are gap between the right side of intermediate sleeve 5, fill magnetic current in the gap
Body is sealed.
The magnet fluid sealing unit is equipped with 1-5 group.
Quantity of the left side of the intermediate sleeve 5 equipped with annular groove I is 4-8, and the second from left magnet ring 9 is right
4-8 should be arranged；Quantity of the right side of the intermediate sleeve 5 equipped with annular groove II is 4-8, two permanent magnet of the right side
Ring 12 is correspondingly arranged 4-8；Quantity of the right side of the bulge loop III15 equipped with annular groove III is 4-8, the left side
One magnet ring 8 is correspondingly arranged 4-8；The quantity that the left side of the bulge loop IV 16 is equipped with annular groove IV is 4-8, described
One magnet ring 11 of the right side be correspondingly arranged 4-8.
The sum of the left magnetic guiding loop 6,7 axial length of right magnetic guiding loop are greater than left sleeve 3, right sleeve 4, intermediate magnet ring
The sum of 10 axial length.
The axial length of the intermediate sleeve 5 is identical as the intermediate axial length of magnet ring 10.
The size in the gap between the right side of the second from left magnet ring 9 and bulge loop I13 is 0.05 ~ 3mm；Described
The size in the gap between right two magnet rings 12 and the left side of bulge loop II14 is 0.05 ~ 3mm；The first from left magnet ring
The size in the gap between 8 and the left side of intermediate sleeve 5 is 0.05 ~ 3mm；One magnet ring 11 of the right side and intermediate sleeve
The size in the gap between the right side of cylinder 5 is 0.05 ~ 3mm.
The first from left magnet ring 8, the second from left magnet ring 9, intermediate magnet ring 10, a right magnet ring 11, the right side two
Magnet ring 12 is axial charging type magnet ring；
The first from left magnet ring 8, the magnetic line of force of the second from left magnet ring 9 are contrary, a right magnet ring 11, the right side two
The magnetic line of force of magnet ring 12 is contrary, the magnetic line of force direction phase of the first from left magnet ring 8, a right magnet ring 11
Together；The second from left magnet ring 9, the magnetic line of force direction of right two magnet rings 12 are identical；It is the intermediate magnet ring 10, left
The magnetic line of force direction of two magnet rings 9 is identical.
The telescopic device for sealing magnetic fluid of the magnetic guiding loop further includes left magnetism-isolating loop 17, right magnetism-isolating loop 18；The left side
Magnetism-isolating loop 17 and right magnetism-isolating loop 18 are set on the inner wall of shell 2, and left magnetism-isolating loop 17 is located at the left side of left magnetic guiding loop 6, right magnetism-isolating loop
18 are located at the right side of right magnetic guiding loop 7.
The telescopic device for sealing magnetic fluid of the magnetic guiding loop further includes left bearing 19 and right bearing 20, the left axle
Hold 19 and right bearing 20 be set on axis 1, the left bearing 19 is set to left 17 left side of magnetism-isolating loop, connects with left magnetism-isolating loop 17
Touching；The right bearing 20 is set to the right side of right magnetism-isolating loop 18, contacts with right magnetism-isolating loop 18.
Claims (9)
1. a kind of telescopic device for sealing magnetic fluid of magnetic guiding loop, including shell (2), it is characterised in that:
It is made of more than one magnet fluid sealing unit, the magnet fluid sealing unit includes left sleeve (3), right sleeve
(4), intermediate sleeve (5), left magnetic guiding loop (6), right magnetic guiding loop (7), the first from left magnet ring (8), the second from left magnet ring (9), centre
Magnet ring (10), a right magnet ring (11), right two magnet rings (12)；
The left sleeve (3), right sleeve (4) are threadedly coupled mode loaded on axis (1)；The left sleeve (3), right sleeve
(4) intermediate magnet ring (10) are equipped between, the intermediate magnet ring (10) is set on axis (1)；The intermediate sleeve
Cylinder (5) is set on the periphery of intermediate magnet ring (10) by interference fit；
The left magnetic guiding loop (6), right magnetic guiding loop (7) are respectively arranged on the inner wall of shell (2), and left magnetic guiding loop (6), the right side are led
Magnet ring (7) contacts with each other；
The left end of the left magnetic guiding loop (6) is equipped with the bulge loop I(13 radially extended to axis (1) direction)；The bulge loop I
(13) mutually right close to the part of its inner headed face and the part on intermediate sleeve (5) left side close to its periphery on right side
It answers, and there are spacing between the two；The left side of the intermediate sleeve (5) is equipped with annular groove I；The second from left permanent magnet
Ring (9) is set in annular groove I, and the second from left magnet ring (9) extends along axial direction to the right side of bulge loop I(13), with bulge loop I's)
There are gap between right side, filling magnetic fluid is sealed in the gap；
The right end of the right magnetic guiding loop (7) is equipped with the bulge loop II(14 radially extended to axis (1) direction)；The bulge loop
II(14 mutual close to the part of its inner headed face and the part on intermediate sleeve (5) right side close to its periphery on left side)
It is corresponding, and there are spacing between the two；The right side of the intermediate sleeve (5) is equipped with annular groove II；The right side two is forever
Magnet ring (12) is set in annular groove II, and right two magnet rings (12) extend along axial direction to the left side of bulge loop II(14), and convex
Ring II(14) left side between there are gap, filling magnetic fluid is sealed in the gap；
The left end of the left sleeve (3) is equipped with the bulge loop III(15 radially extended to axis (1) direction)；The bulge loop
III(15 right side) on intermediate sleeve (5) left side lean on paraxial (1) part correspond to each other, and between the two there are
Spacing；The bulge loop III(15) right side be equipped with annular groove III；The first from left magnet ring (8) is set to the annular groove
In III, the first from left magnet ring (8) extends along axial direction to the left side of intermediate sleeve (5), with the left side of intermediate sleeve (5) it
Between there are gap, filling magnetic fluid is sealed in the gap；
The right end of the right sleeve (4) is equipped with the bulge loop IV (16) radially extended to axis (1) direction；The bulge loop IV
(16) left side on intermediate sleeve (5) right side lean on paraxial (1) part correspond to each other, and between the two there are
Away from；The left side of the bulge loop IV (16) is equipped with annular groove IV；One magnet ring of the right side (11) is set in the annular groove IV,
Left end right extension of the right magnet ring (11) along axial direction to intermediate sleeve (5), between the right side of intermediate sleeve (5) there are
Gap, filling magnetic fluid is sealed in the gap.
2. the telescopic device for sealing magnetic fluid of magnetic guiding loop as described in claim 1, it is characterised in that: the magnet fluid sealing
Unit is equipped with 1-5 group.
3. the telescopic device for sealing magnetic fluid of magnetic guiding loop as described in claim 1, it is characterised in that: the intermediate sleeve
(5) quantity of the left side equipped with annular groove I is 4-8, and the second from left magnet ring (9) is correspondingly arranged 4-8；Described
Quantity of the right side of intermediate sleeve (5) equipped with annular groove II is 4-8, and two magnet ring of the right side (12) is correspondingly arranged 4-
8；The bulge loop III(15) quantity of the right side equipped with annular groove III be 4-8, the first from left magnet ring (8)
It is correspondingly arranged 4-8；The quantity that the left side of the bulge loop IV (16) is equipped with annular groove IV is 4-8, and the right side one is forever
Magnet ring (11) is correspondingly arranged 4-8.
4. the telescopic device for sealing magnetic fluid of magnetic guiding loop as described in claim 1, it is characterised in that:
The sum of the left magnetic guiding loop (6), right magnetic guiding loop (7) axial length are greater than left sleeve (3), right sleeve (4), intermediate permanent magnetism
The sum of the axial length of body ring (10).
5. the telescopic device for sealing magnetic fluid of magnetic guiding loop as described in claim 1, it is characterised in that: the intermediate sleeve
(5) axial length is identical as the axial length of intermediate magnet ring (10).
6. the telescopic device for sealing magnetic fluid of magnetic guiding loop as described in claim 1, it is characterised in that: the second from left permanent magnet
Ring (9) and bulge loop I(13) right side between gap size be 0.05 ~ 3mm；Two magnet ring of the right side (12) with it is convex
Ring II(14) left side between gap size be 0.05 ~ 3mm；The first from left magnet ring (8) and intermediate sleeve (5)
Left side between gap size be 0.05 ~ 3mm；The right end of one magnet ring of the right side (11) and intermediate sleeve (5)
The size in the gap between face is 0.05 ~ 3mm.
7. the telescopic device for sealing magnetic fluid of magnetic guiding loop as described in claim 1, it is characterised in that: the first from left permanent magnet
Ring (8), the second from left magnet ring (9), intermediate magnet ring (10), a right magnet ring (11), right two magnet rings (12) are
Axial charging type magnet ring；
The first from left magnet ring (8), the magnetic line of force of the second from left magnet ring (9) are contrary, a right magnet ring
(11), the magnetic line of force of right two magnet rings (12) is contrary, the first from left magnet ring (8), a right magnet ring (11)
Magnetic line of force direction it is identical；The second from left magnet ring (9), the magnetic line of force direction of right two magnet rings (12) are identical；It is described
Intermediate magnet ring (10), the magnetic line of force direction of the second from left magnet ring (9) it is identical.
8. the telescopic device for sealing magnetic fluid of magnetic guiding loop as described in claim 1, it is characterised in that: further include left magnetism-isolating loop
(17), right magnetism-isolating loop (18)；The left magnetism-isolating loop (17) and right magnetism-isolating loop (18) is set on the inner wall of shell (2), and a left side is every magnetic
Ring (17) is located at the left side of left magnetic guiding loop (6), and right magnetism-isolating loop (18) is located at the right side of right magnetic guiding loop (7).
9. the telescopic device for sealing magnetic fluid of magnetic guiding loop as described in claim 1, it is characterised in that: further include left bearing (19)
With right bearing (20), the left bearing (19) and right bearing (20) are set on axis (1), and the left bearing (19) is set
On the left of left magnetism-isolating loop (17), contacted with left magnetism-isolating loop (17)；The right bearing (20) is set to the right side of right magnetism-isolating loop (18),
It is contacted with right magnetism-isolating loop (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241396.3A CN109210205B (en) | 2018-10-24 | 2018-10-24 | Magnetic conductive ring sleeve type magnetic fluid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241396.3A CN109210205B (en) | 2018-10-24 | 2018-10-24 | Magnetic conductive ring sleeve type magnetic fluid sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN109210205A true CN109210205A (en) | 2019-01-15 |
| CN109210205B CN109210205B (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811241396.3A Active CN109210205B (en) | 2018-10-24 | 2018-10-24 | Magnetic conductive ring sleeve type magnetic fluid sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642377A (en) * | 2020-12-28 | 2021-04-13 | 牡丹江师范学院 | Dynamic sealing device for chemical reaction kettle |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09317899A (en) * | 1996-05-31 | 1997-12-12 | Nippon Steel Corp | Magnetic fluid seal device |
| CN105221753A (en) * | 2015-09-09 | 2016-01-06 | 北京交通大学 | Radial magnetic liquid rotating sealing device |
| CN105465373A (en) * | 2016-01-28 | 2016-04-06 | 自贡兆强环保科技股份有限公司 | High-performance magnetic liquid sealing structure |
| PL221563B1 (en) * | 2011-12-08 | 2016-04-29 | Akademia Górniczo Hutnicza Im Stanisława Staszica W Krakowie | Multistage sealing using a magnetic fluid |
| CN105889519A (en) * | 2016-06-13 | 2016-08-24 | 上海舜拓电机有限公司 | Magneticfluid sealing device applied to electric push rod |
| CN107725785A (en) * | 2017-10-30 | 2018-02-23 | 广西科技大学 | A kind of new staged device for sealing magnetic fluid |
| CN107882999A (en) * | 2017-12-13 | 2018-04-06 | 广西科技大学 | A kind of embedded device for sealing magnetic fluid of magnetic source |
| CN107956883A (en) * | 2017-12-14 | 2018-04-24 | 广西科技大学 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
| CN108006232A (en) * | 2017-12-14 | 2018-05-08 | 广西科技大学 | A kind of mixed type labyrinth type device for sealing magnetic fluid |
| CN108006231A (en) * | 2017-12-13 | 2018-05-08 | 广西科技大学 | A kind of parallel connection type magnetic fluid reciprocating sealing device |
| CN108006233A (en) * | 2017-12-14 | 2018-05-08 | 广西科技大学 | A kind of telescopic device for sealing magnetic fluid of trapezoidal pole shoe |
-
2018
- 2018-10-24 CN CN201811241396.3A patent/CN109210205B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09317899A (en) * | 1996-05-31 | 1997-12-12 | Nippon Steel Corp | Magnetic fluid seal device |
| PL221563B1 (en) * | 2011-12-08 | 2016-04-29 | Akademia Górniczo Hutnicza Im Stanisława Staszica W Krakowie | Multistage sealing using a magnetic fluid |
| CN105221753A (en) * | 2015-09-09 | 2016-01-06 | 北京交通大学 | Radial magnetic liquid rotating sealing device |
| CN105465373A (en) * | 2016-01-28 | 2016-04-06 | 自贡兆强环保科技股份有限公司 | High-performance magnetic liquid sealing structure |
| CN105889519A (en) * | 2016-06-13 | 2016-08-24 | 上海舜拓电机有限公司 | Magneticfluid sealing device applied to electric push rod |
| CN107725785A (en) * | 2017-10-30 | 2018-02-23 | 广西科技大学 | A kind of new staged device for sealing magnetic fluid |
| CN107882999A (en) * | 2017-12-13 | 2018-04-06 | 广西科技大学 | A kind of embedded device for sealing magnetic fluid of magnetic source |
| CN108006231A (en) * | 2017-12-13 | 2018-05-08 | 广西科技大学 | A kind of parallel connection type magnetic fluid reciprocating sealing device |
| CN107956883A (en) * | 2017-12-14 | 2018-04-24 | 广西科技大学 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
| CN108006232A (en) * | 2017-12-14 | 2018-05-08 | 广西科技大学 | A kind of mixed type labyrinth type device for sealing magnetic fluid |
| CN108006233A (en) * | 2017-12-14 | 2018-05-08 | 广西科技大学 | A kind of telescopic device for sealing magnetic fluid of trapezoidal pole shoe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642377A (en) * | 2020-12-28 | 2021-04-13 | 牡丹江师范学院 | Dynamic sealing device for chemical reaction kettle |
| CN112642377B (en) * | 2020-12-28 | 2022-09-30 | 牡丹江师范学院 | Dynamic sealing device for chemical reaction kettle |
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