CN106015584A - Magnetic-source-series magnetic fluid sealing device - Google Patents
Magnetic-source-series magnetic fluid sealing device Download PDFInfo
- Publication number
- CN106015584A CN106015584A CN201610599773.5A CN201610599773A CN106015584A CN 106015584 A CN106015584 A CN 106015584A CN 201610599773 A CN201610599773 A CN 201610599773A CN 106015584 A CN106015584 A CN 106015584A
- Authority
- CN
- China
- Prior art keywords
- pole shoe
- shoe ring
- permanent magnet
- ring
- 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.)
- Granted
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
Abstract
The invention belongs to the field of mechanical engineering sealing, and particularly relates to a magnetic-source-series magnetic fluid sealing device. The magnetic-source-series magnetic fluid sealing device comprises a shell, a left pole shoe ring, a middle pole shoe ring, a right pole shoe ring, first permanent magnets and second permanent magnets. The middle pole shoe ring is installed in the middle of a shaft, and a plurality of first annular grooves and a plurality of second annular grooves are formed in the left end face and the right end face of the middle pole shoe ring respectively; the left pole shoe ring is located on the left side of the middle pole shoe ring, and sealing media are injected into the positions, corresponding to the first permanent magnets, of the right end face of the left pole shoe ring; the first permanent magnets are circular ring bodies, the wall thickness of the first permanent magnets is coincident with the height of the first annular grooves, and the first permanent magnets are embedded into the first annular grooves in a sleeving mode; the right pole shoe ring is located on the right side of the middle pole shoe ring, and sealing media are injected into the portions, corresponding to the second permanent magnets, of the left end face of the right pole shoe ring; the second permanent magnets are circular ring bodies, and embedded into the second annular grooves in a sleeving mode. By means of the magnetic-source-series magnetic fluid sealing device of the sealing structure, the stability of sealing performance can be improved.
Description
Technical field
The invention belongs to sealing field of mechanical engineering, be specifically related to the magnetic fluid seal device of a kind of magnetic source tandem type.
Background technology
Along with economical growing, sealing property is required more and more higher by the association areas such as industrial equipment, traditional sealing means has been difficult to meet the seal request of some special occasions, the development of magnetic fluid technique has promoted the development of Magneticfluid Seal Technique, and Magneticfluid Seal Technique just plays an increasingly important role in field of sealing technology.Magnetic fluid seal is to use local high-intensity magnetic field and a kind of advanced dynamic sealing method of magnetic fluid closure seal clearance, existing magnetic fluid seal typically uses sleeve structure, mainly be made up of parts such as pole shoe ring, permanent magnet, magnetic conductive axis or magnetic guiding loops, and seal its magnetism-collected structure of structure mainly by single-side pole teeth, to flute profile magnetic fluid movable sealing structure, Multi-level sealing structure, centrifugal magnetic fluid seal structure.nullExisting these seal structure，Its sealing ring is all to offer pole tooth in pole shoe ring or permanent magnet，Make between pole tooth and rotating shaft, to form axial ring packing gap，And rotating shaft can produce circular runout in rotation process，The bias of rotating shaft can change the symmetry in axial ring packing gap，If the offset of rotating shaft is excessive，It is also possible to generation rigid contact between rotating shaft and sealing pole tooth can be caused to cause rigidity to be worn and torn，Axial ring packing gap radial dimension is made to significantly increase，Owing to magnetic fluid shaft seal pressure-bearing value is the most sensitive to ring packing gap length，Magnetic fluid shaft seal pressure-bearing value can be made to reduce by more than 10% if ring packing gap increases 0.1mm，Therefore，The a little increase in ring packing gap may result in being decreased obviously of magnetic fluid shaft seal pressure-bearing value，It is unfavorable for the stability of sealing device sealing property，Sealing device is made to be difficult to meet the requirement of the special operation conditions such as high-speed overload.
Summary of the invention
The present invention is directed to the deficiency of present technology, it is provided that the magnetic fluid seal device of the magnetic source tandem type of a kind of good sealing effect.
Technical scheme is as follows:
The magnetic fluid seal device of a kind of magnetic source tandem type, including shell, left pole shoe ring, middle pole shoe ring, right pole shoe ring, the first permanent magnet, the second permanent magnet；Described middle pole shoe ring is installed on the middle part of axle, and the left side of middle pole shoe ring offers more than one annular groove I, and the right side of middle pole shoe ring offers more than one annular groove II；
Described left pole shoe ring is positioned at the left side of middle pole shoe ring, leaves gap between left pole shoe ring and middle pole shoe ring；The first described permanent magnet is torus, and its wall thickness is highly consistent with the annular groove I on the left side of middle pole shoe ring, and in the annular groove I of the left side that the first permanent magnet is nested in middle pole shoe ring, the first permanent magnet pole shoe ring to the left extends；Gap is left between the first described permanent magnet and the right side of left pole shoe ring；Sealing medium is injected in position corresponding with the first permanent magnet on the right side of left pole shoe ring, and under the action of a magnetic force, sealing medium is adsorbed on the first permanent magnet；
Described right pole shoe ring is positioned at the right side of middle pole shoe ring, leaves gap between right pole shoe ring and middle pole shoe ring；The second described permanent magnet is torus, its wall thickness is highly consistent with the annular groove II on the right side of middle pole shoe ring, in the annular groove II of the right side that the second permanent magnet is placed on middle pole shoe ring, second permanent magnet pole shoe ring to the right extends, and leaves gap between the second described permanent magnet and the left side of right pole shoe ring；Injecting sealing medium on position corresponding with the second permanent magnet on the left side of right pole shoe ring, under the action of a magnetic force, sealing medium is adsorbed on the second permanent magnet.
The opposite polarity of two the first permanent magnets adjacent on the left side of described middle pole shoe ring.
Described annular groove I is consistent with annular groove II quantity, and they are at middle pole shoe ring position one_to_one corresponding radially, and geomery is the most consistent；The first permanent magnet installed in described corresponding annular groove I and annular groove II and the polarity of the second permanent magnet are identical.
Also include that pole tooth I, described pole tooth I are respectively arranged on the right side of left pole shoe ring and the left side of right pole shoe ring；On the right side of described left pole shoe ring, pole tooth I is located between each first permanent magnet；On the left side of described right pole shoe ring, pole tooth I is located between each second permanent magnet.
On the right side of left pole shoe ring and on the left side of right pole shoe ring, the position near outer casing inner wall is respectively provided with equivalently-sized pole tooth II, and the right side of the pole tooth II in described left pole shoe ring contacts with the left side of the pole tooth II in right pole shoe ring.
Also including two jump rings, described jump ring is separately mounted on the axle of middle pole shoe ring left and right both ends of the surface, is close to the both sides of middle pole shoe ring.
Also include two groups of magnetism-isolating loops and two bearings, two groups of described magnetism-isolating loops are separately mounted on left pole shoe ring left side and right pole shoe ring right side, two bearings are installed on axle, are respectively provided at the right side of magnetism-isolating loop on the left side of magnetism-isolating loop on left pole shoe ring left side and right pole shoe ring right side.
Described magnetism-isolating loop includes that outer magnetism-isolating loop and interior magnetism-isolating loop, described outer magnetism-isolating loop are arranged on the inwall of shell, and described interior magnetism-isolating loop is installed on axle, there is gap between outer magnetism-isolating loop and interior magnetism-isolating loop, and outer magnetism-isolating loop is equal with the axial length of interior magnetism-isolating loop.
Described permanent magnet is axial charging type permanent magnet.
The quantity of described annular groove I is 1-7, and annular groove I axial depth is 1-5mm, and radial height is 2-8mm.
The installation process of the present invention is as follows: be arranged on by the first permanent magnet in the annular groove I of middle pole shoe ring left side, second permanent magnet is arranged in the annular groove II of middle pole shoe ring right side, middle pole shoe ring is arranged on the middle part of axle again, the middle left side of pole shoe ring and the axle on right side are respectively mounted jump ring, sealing medium is injected in the left side of the first permanent magnet, sealing medium is magnetic fluid, injects sealing medium in the right side of the second permanent magnet, and sealing medium is magnetic fluid；Rubber ring is installed in the annular groove III of left pole shoe ring and right pole shoe ring outer ring surface, on the axle in the left side that more left pole shoe ring is arranged on middle pole shoe ring, on the axle on the right side that right pole shoe ring is arranged on middle pole shoe ring, make the right side of left pole shoe ring contact with the sealing medium of the first permanent magnet left side, make right pole shoe ring left side contact with the sealing medium of the second permanent magnet right side；In the left side of left pole shoe ring, magnetism-isolating loop and bearing are installed successively, magnetism-isolating loop and bearing are installed on the right side of right pole shoe ring successively；Shell is mounted on an axle, makes jacket live in state the part being mounted on an axle, make the inner side of shell left end be close to be positioned at the bearing in left side；Finally by threadeding of end cap and shell right-hand member, compress the outer ring of the bearing being positioned at right side.
The present invention offers annular groove respectively in the left side of middle pole shoe ring and right side, the axial charging type permanent magnet of series connection is installed in annular groove, permanent magnet matches with the pole tooth in left pole shoe ring and right pole shoe ring, thus realize the magnetic fluid seal of magnetic source tandem type, the loss of magnetic fluid when the sealing structure of magnetic source tandem type can effectively reduce seal failure；Arranging pole tooth on the end face of left pole shoe ring and right pole shoe ring, pole tooth cooperatively forms radial labyrinth with the permanent magnet in middle pole shoe ring and seals structure, and the seal clearance of labyrinth seal structure radially is not affected by rotating shaft circular runout, makes the more stable property of sealing property；The present invention overcomes existing sealing device cannot realize a difficult problem for the special operation condition high sealing performance requirements such as high-speed overload, the magnetic fluid seal device using magnetic source tandem type decreases the stress of original multidiameter and concentrates, improve the voltage endurance capability of magnetic fluid seal under the conditions of wide arc gap, expand its range of safety operation.
Accompanying drawing explanation
Fig. 1 is the magnetic fluid seal device of magnetic source tandem type
In figure, each sequence number indicates and the structure title of correspondence is as follows: 1-axle, 2-shell, 3-bearing, magnetism-isolating loop in 4-, the outer magnetism-isolating loop of 5-, the left pole shoe ring of 6-, pole shoe ring in the middle of 7-pole tooth I, 8-, 9-pole tooth II, 10-jump ring, the right pole shoe ring of 11-, 12-end cap, 13-annular groove III, 14-the second permanent magnet, 15-annular groove II, 16-annular groove I, 17-the first permanent magnet.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
As described in Figure 1, the magnetic fluid seal device of a kind of magnetic source tandem type, including shell 2, left pole shoe ring 6, middle pole shoe ring 8, right pole shoe ring the 11, first permanent magnet the 17, second permanent magnet 14；Described middle pole shoe ring 8 is installed on the middle part of axle 1, and the left side of middle pole shoe ring 8 offers more than one annular groove I16, and the right side of middle pole shoe ring 8 offers more than one annular groove II15；
Described left pole shoe ring 6 is positioned at the left side of middle pole shoe ring 8, leaves gap between left pole shoe ring 6 and middle pole shoe ring 8；The first described permanent magnet 17 is torus, and its wall thickness is highly consistent with the annular groove I16 on the left side of middle pole shoe ring 8, and in the annular groove I16 of the left side that the first permanent magnet 17 is nested in middle pole shoe ring 8, the first permanent magnet 17 pole shoe ring 6 to the left extends；Sealing medium is injected in position corresponding with the first permanent magnet 17 on the right side of left pole shoe ring 6, and under the action of a magnetic force, sealing medium is adsorbed on the first permanent magnet 17；
Described right pole shoe ring 11 is positioned at the right side of middle pole shoe ring 8, leaves gap between right pole shoe ring 11 and middle pole shoe ring 8；The second described permanent magnet 14 is torus, its wall thickness is highly consistent with the annular groove II15 on the right side of middle pole shoe ring 8, in the annular groove II15 of the right side that the second permanent magnet 14 is nested in middle pole shoe ring 8, the second permanent magnet 14 pole shoe ring 11 to the right extends；Injecting sealing medium on position corresponding with the second permanent magnet 14 on the left side of right pole shoe ring 11, under the action of a magnetic force, sealing medium is adsorbed on the second permanent magnet 14.
The opposite polarity of two the first permanent magnets 17 adjacent on the left side of described middle pole shoe ring 8.
Described annular groove I16 is consistent with annular groove II15 quantity, and they are at middle pole shoe ring 8 position one_to_one corresponding radially, and geomery is the most consistent；The first permanent magnet 17 installed in described corresponding annular groove I16 and annular groove II15 is identical with the polarity of the second permanent magnet 14.
Also include that pole tooth I7, described pole tooth I7 are respectively arranged on the right side of left pole shoe ring 6 and the left side of right pole shoe ring 11；On the right side of described left pole shoe ring 6, pole tooth I7 is located between each first permanent magnet 17；On the left side of described right pole shoe ring 11, pole tooth I7 is located between each second permanent magnet 14.
On the right side of left pole shoe ring 6 and on the left side of right pole shoe ring 11, the position near shell 2 inwall is respectively provided with equivalently-sized pole tooth II9, and the right side of the pole tooth II9 in described left pole shoe ring 6 contacts with the left side of the pole tooth II9 in right pole shoe ring 11.
Also include that two jump rings 10, described jump ring 10 are separately mounted on the axle 1 of middle pole shoe ring about 8 both ends of the surface, be close to the both sides of middle pole shoe ring 8.
Also include two groups of magnetism-isolating loops and two bearings 3, two groups of described magnetism-isolating loops are separately mounted on left pole shoe ring 6 left side and right pole shoe ring 11 right side, two bearings 3 are installed on axle 1, are respectively provided at the right side of magnetism-isolating loop on the left side of magnetism-isolating loop on left pole shoe ring 6 left side and right pole shoe ring 11 right side.
Described magnetism-isolating loop includes outer magnetism-isolating loop 5 and interior magnetism-isolating loop 4, described outer magnetism-isolating loop 5 is arranged on the inwall of shell 2, described interior magnetism-isolating loop 4 is installed on axle 1, there is gap between outer magnetism-isolating loop 5 and interior magnetism-isolating loop 4, and outer magnetism-isolating loop 5 is equal with the axial length of interior magnetism-isolating loop 4.
The first described permanent magnet 17 and the second permanent magnet 14 are axial charging type permanent magnet.
The quantity of described annular groove I16 is 1-7, and annular groove I16 axial depth is 1-5mm, and radial height is 2-8mm.
The installation process of the present invention is as follows: be arranged on by the first permanent magnet 17 in the annular groove I16 of middle pole shoe ring 8 left side, second permanent magnet 14 is arranged in the annular groove II15 of middle pole shoe ring 8 right side, middle pole shoe ring 8 is arranged on the middle part of axle 1 again, the middle left side of pole shoe ring 8 and the axle 1 on right side are respectively mounted jump ring 10, sealing medium is injected in the left side of the first permanent magnet 17, sealing medium is magnetic fluid, inject sealing medium in the right side of the second permanent magnet 14, sealing medium is magnetic fluid；Rubber ring is installed in the annular groove III13 of left pole shoe ring 6 and right pole shoe ring 11 outer ring surface, on the axle 1 in the left side that more left pole shoe ring 6 is arranged on middle pole shoe ring 8, on the axle 1 on the right side that right pole shoe ring 11 is arranged on middle pole shoe ring 8, there is gap with the first permanent magnet 17 left side in the right side making left pole shoe ring 6, makes right pole shoe ring 11 left side and the second permanent magnet 14 right side there is gap；In the left side of left pole shoe ring 6, magnetism-isolating loop and bearing 3 are installed successively, magnetism-isolating loop and bearing 3 are installed on the right side of right pole shoe ring 11 successively；Shell 2 is arranged on axle 1, makes shell 2 cover the above-mentioned part being mounted on an axle, make the inner side of shell 2 left end be close to be positioned at the bearing 3 in left side；Finally by threadeding of end cap 12 and shell 2 right-hand member, compress the outer ring of the bearing 3 being positioned at right side.
Claims (10)
1. a magnetic fluid seal device for magnetic source tandem type, including shell (2), left pole shoe ring (6), middle pole shoe ring (8), right pole shoe ring (11), the first permanent magnet (17), the second permanent magnet (14)；It is characterized in that: described middle pole shoe ring (8) is installed on the middle part of axle (1), the left side of middle pole shoe ring (8) offers more than one annular groove I(16), the right side of middle pole shoe ring (8) offers more than one annular groove II(15)；
Described left pole shoe ring (6) is positioned at the left side of middle pole shoe ring (8), leaves gap between left pole shoe ring (6) and middle pole shoe ring (8)；Described the first permanent magnet (17) is torus, its wall thickness and the annular groove I(16 on the left side of middle pole shoe ring (8)) highly consistent, first permanent magnet (17) is nested in the annular groove I(16 of the left side of middle pole shoe ring (8)) in, first permanent magnet (17) pole shoe ring to the left (6) extends, and leaves gap between described the first permanent magnet (17) and the right side of left pole shoe ring (6)；
Described right pole shoe ring (11) is positioned at the right side of middle pole shoe ring (8), leaves gap between right pole shoe ring (11) and middle pole shoe ring (8)；Described the second permanent magnet (14) is torus, its wall thickness and the annular groove II(15 on the right side of middle pole shoe ring (8)) highly consistent, second permanent magnet (14) is nested in the annular groove II(15 of the right side of middle pole shoe ring (8)) in, second permanent magnet (14) pole shoe ring to the right (11) extends, and leaves gap between described the second permanent magnet (14) and the left side of right pole shoe ring (11).
2. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 1, it is characterised in that: the opposite polarity of two the first permanent magnets (17) adjacent on the left side of described middle pole shoe ring (8).
3. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 1 or 2, it is characterized in that: described annular groove I(16) with annular groove II(15) quantity is consistent, they are at middle pole shoe ring (8) position one_to_one corresponding radially, and geomery is the most consistent；Described corresponding annular groove I(16) and annular groove II(15) in first permanent magnet (17) of installation identical with the polarity of the second permanent magnet (14).
4. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 3, it is characterised in that: also include pole tooth I(7), described pole tooth I(7) it is respectively arranged on the right side of left pole shoe ring (6) and the left side of right pole shoe ring (11)；On the right side of described left pole shoe ring (6), pole tooth I(7) it is located between each first permanent magnet (17)；On the left side of described right pole shoe ring (11), pole tooth I(7) it is located between each second permanent magnet (14).
5. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 4, it is characterized in that: on the right side of left pole shoe ring (6) and on the left side of right pole shoe ring (11), be respectively provided with equivalently-sized pole tooth II(9 near the position of shell (2) inwall), the described pole tooth II(9 in left pole shoe ring (6)) right side and the pole tooth II(9 in right pole shoe ring (11)) left side contact.
6. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 1, it is characterized in that: also include two jump rings (10), described jump ring (10) is separately mounted on the axle (1) of middle pole shoe ring (8) left and right both ends of the surface, is close to the both sides of middle pole shoe ring (8).
7. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 1, it is characterized in that: also include two groups of magnetism-isolating loops and two bearings (3), two groups of described magnetism-isolating loops are separately mounted on left pole shoe ring (6) left side and right pole shoe ring (11) right side, two bearings (3) are installed on axle (1), are respectively provided at the right side of magnetism-isolating loop on the left side of magnetism-isolating loop on left pole shoe ring (6) left side and right pole shoe ring (11) right side.
8. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 7, it is characterized in that: described magnetism-isolating loop includes outer magnetism-isolating loop (5) and interior magnetism-isolating loop (4), described outer magnetism-isolating loop (5) is arranged on the inwall of shell (2), described interior magnetism-isolating loop (4) is installed on axle (1), there is gap between outer magnetism-isolating loop (5) and interior magnetism-isolating loop (4), outer magnetism-isolating loop (5) is equal with the axial length of interior magnetism-isolating loop (4).
9. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 1, it is characterised in that: described the first permanent magnet (17) and the second permanent magnet (14) are axial charging type permanent magnet.
10. the magnetic fluid seal device of magnetic source tandem type as claimed in claim 1, it is characterised in that: quantity described annular groove I(16) is 1-7, annular groove I(16) axial depth is 1-5mm, radial height is 2-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599773.5A CN106015584B (en) | 2016-07-28 | 2016-07-28 | A kind of magnetic fluid seal device of magnetic source tandem type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599773.5A CN106015584B (en) | 2016-07-28 | 2016-07-28 | A kind of magnetic fluid seal device of magnetic source tandem type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015584A true CN106015584A (en) | 2016-10-12 |
| CN106015584B CN106015584B (en) | 2017-09-29 |
Family
ID=57114701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610599773.5A Active CN106015584B (en) | 2016-07-28 | 2016-07-28 | A kind of magnetic fluid seal device of magnetic source tandem type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015584B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906207A (en) * | 2017-12-13 | 2018-04-13 | 广西科技大学 | A kind of series parallel type device for sealing magnetic fluid |
| CN108006230A (en) * | 2017-12-13 | 2018-05-08 | 广西科技大学 | A kind of hybrid magnetic fluid seal apparatus |
| CN109282041A (en) * | 2018-11-19 | 2019-01-29 | 广西科技大学 | A kind of more magnetic hybrid type device for sealing magnetic fluid |
| CN112815097A (en) * | 2021-02-08 | 2021-05-18 | 清华大学 | Magnetic liquid sealing device adopting multiple magnetic sources |
| CN112928854A (en) * | 2021-02-07 | 2021-06-08 | 武汉波依迈科技有限公司 | Hub motor |
| CN113090760A (en) * | 2021-04-07 | 2021-07-09 | 北京交通大学 | Magnetic liquid sealing device |
| CN114198504A (en) * | 2021-10-09 | 2022-03-18 | 温州大学 | Magnetic source compensation magnetic liquid sealing device for eccentric working condition and de-eccentricity method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089490A (en) * | 1996-09-12 | 1998-04-07 | Nok Corp | Sealing device utilized with magnetic fluid |
| CN2447583Y (en) * | 2000-11-03 | 2001-09-12 | 罗喜梅 | Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling |
| JP2003314705A (en) * | 2002-04-25 | 2003-11-06 | Nok Corp | Sealing device utilizing magnetic fluid |
| CN1544834A (en) * | 2003-11-18 | 2004-11-10 | 北京交通大学 | Low-temperature large diameter magnetic liquid sealing arrangement |
| CN101737497A (en) * | 2010-02-11 | 2010-06-16 | 北京交通大学 | Magnetic liquid and triclinic mouth packing ring combined reciprocating shaft sealing device |
| CN101769381A (en) * | 2010-03-01 | 2010-07-07 | 北京交通大学 | Magnetic liquid and C-shaped slip ring combination type reciprocating shaft sealing device |
| CN103574041A (en) * | 2013-11-08 | 2014-02-12 | 北京交通大学 | Cooling groove and centrifugal combined magnetic liquid rotating and sealing device |
| CN205824188U (en) * | 2016-07-28 | 2016-12-21 | 广西科技大学 | A kind of magnetic fluid seal device of magnetic source tandem type |
-
2016
- 2016-07-28 CN CN201610599773.5A patent/CN106015584B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089490A (en) * | 1996-09-12 | 1998-04-07 | Nok Corp | Sealing device utilized with magnetic fluid |
| CN2447583Y (en) * | 2000-11-03 | 2001-09-12 | 罗喜梅 | Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling |
| JP2003314705A (en) * | 2002-04-25 | 2003-11-06 | Nok Corp | Sealing device utilizing magnetic fluid |
| CN1544834A (en) * | 2003-11-18 | 2004-11-10 | 北京交通大学 | Low-temperature large diameter magnetic liquid sealing arrangement |
| CN101737497A (en) * | 2010-02-11 | 2010-06-16 | 北京交通大学 | Magnetic liquid and triclinic mouth packing ring combined reciprocating shaft sealing device |
| CN101769381A (en) * | 2010-03-01 | 2010-07-07 | 北京交通大学 | Magnetic liquid and C-shaped slip ring combination type reciprocating shaft sealing device |
| CN103574041A (en) * | 2013-11-08 | 2014-02-12 | 北京交通大学 | Cooling groove and centrifugal combined magnetic liquid rotating and sealing device |
| CN205824188U (en) * | 2016-07-28 | 2016-12-21 | 广西科技大学 | A kind of magnetic fluid seal device of magnetic source tandem type |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906207A (en) * | 2017-12-13 | 2018-04-13 | 广西科技大学 | A kind of series parallel type device for sealing magnetic fluid |
| CN108006230A (en) * | 2017-12-13 | 2018-05-08 | 广西科技大学 | A kind of hybrid magnetic fluid seal apparatus |
| CN108006230B (en) * | 2017-12-13 | 2020-05-05 | 广西科技大学 | Mixed type magnetic fluid sealing device |
| CN107906207B (en) * | 2017-12-13 | 2023-05-02 | 广西科技大学 | Series-parallel magnetic fluid sealing device |
| CN109282041A (en) * | 2018-11-19 | 2019-01-29 | 广西科技大学 | A kind of more magnetic hybrid type device for sealing magnetic fluid |
| CN109282041B (en) * | 2018-11-19 | 2023-09-29 | 广西科技大学 | Multi-magnetic series-parallel magnetic fluid sealing device |
| CN112928854A (en) * | 2021-02-07 | 2021-06-08 | 武汉波依迈科技有限公司 | Hub motor |
| CN112815097A (en) * | 2021-02-08 | 2021-05-18 | 清华大学 | Magnetic liquid sealing device adopting multiple magnetic sources |
| CN113090760A (en) * | 2021-04-07 | 2021-07-09 | 北京交通大学 | Magnetic liquid sealing device |
| CN114198504A (en) * | 2021-10-09 | 2022-03-18 | 温州大学 | Magnetic source compensation magnetic liquid sealing device for eccentric working condition and de-eccentricity method |
| CN114198504B (en) * | 2021-10-09 | 2024-01-16 | 温州大学 | Magnetic source compensation magnetic liquid sealing device for eccentric working condition and eccentric removing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106015584B (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106015584A (en) | Magnetic-source-series magnetic fluid sealing device | |
| CN205824188U (en) | A kind of magnetic fluid seal device of magnetic source tandem type | |
| CN103498939B (en) | A kind of seal arrangement improving magnetic fluid sealing voltage endurance capability and sealing reliability | |
| CN108006230B (en) | Mixed type magnetic fluid sealing device | |
| CN106015586B (en) | A kind of stepped end-surface type magnetic fluid seal device | |
| CN105570465B (en) | A kind of labyrinth type magnetic fluid seal device | |
| CN205877200U (en) | Cascaded device for sealing magnetic fluid of magnetic source tandem type | |
| CN107882999B (en) | Magnetic source embedded magnetic fluid sealing device | |
| CN106090238B (en) | A kind of staggered device for sealing magnetic fluid of split-type | |
| CN205841774U (en) | A kind of zigzag tooth end-surface type magnetic fluid seal device | |
| CN205824190U (en) | A kind of notch cuttype end-surface type magnetic fluid seal device | |
| CN106015585A (en) | Floating ring-magnetofluid sealing device | |
| CN108374894B (en) | Embedded magnetic fluid sealing device | |
| CN105546123A (en) | Device and method for reducing eccentricity of rotating shaft of large-gap magnetic fluid sealing system | |
| CN106151527B (en) | A kind of magnetic source tandem type staged device for sealing magnetic fluid | |
| CN113790270B (en) | Embedded sleeve type magnetic liquid sealing device | |
| CN105221753B (en) | Radial direction magnetic liquid rotating sealing device | |
| CN109268507A (en) | A kind of more ring-like device for sealing magnetic fluid of magnetic source magnetic conduction | |
| CN106224557B (en) | One kind mixing supplies magnetic-type end-surface type magnetic fluid seal device | |
| CN108266533A (en) | A kind of staggered magnetic fluid sealing structure | |
| CN106015583B (en) | A kind of symmetric form bayonet-type magnetic fluid seal device | |
| CN105822768B (en) | A kind of tandem type end-surface type magnetic fluid seal device | |
| CN205663889U (en) | Tandem type terminal surface formula magnetic fluid seal device | |
| CN205663886U (en) | Mix and supply magnetism type terminal surface formula magnetic fluid seal device | |
| CN205663888U (en) | Many magnetic sources terminal surface formula magnetic fluid seal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |