CN206054549U - A kind of circular cone type device for sealing magnetic fluid - Google Patents
A kind of circular cone type device for sealing magnetic fluid Download PDFInfo
- Publication number
- CN206054549U CN206054549U CN201621045347.9U CN201621045347U CN206054549U CN 206054549 U CN206054549 U CN 206054549U CN 201621045347 U CN201621045347 U CN 201621045347U CN 206054549 U CN206054549 U CN 206054549U
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- China
- Prior art keywords
- permanent magnet
- interior
- pole shoe
- annular groove
- magnetism
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
This utility model is related to mechanical engineering technical field of sealing technology, refer specifically to a kind of circular cone type device for sealing magnetic fluid, the device includes outer pole shoe, interior pole shoe, outer permanent magnet, interior permanent magnet, interior pole shoe is set on axle, the outer wall of interior pole shoe is taper seat, the multiple annular groove I of interval setting on the taper seat, the part between two adjacent annular groove I are pole tooth I；Permanent magnet in installing in annular groove I；Outer pole shoe is installed on the inwall of shell, the inwall of outer pole shoe is taper seat, the inwall of outer pole shoe is parallel to each other with interior pole shoe outer wall, and on the inwall of outer pole shoe, the position of correspondence annular groove I opens up multiple annular groove II, and the part between two adjacent annular groove II is pole tooth II；Outer permanent magnet is respectively mounted in annular groove II；Pole tooth I is mutually corresponding with pole tooth II, and gap is left between them.The sealing device voltage endurance capability is strong, the difficult problem for overcoming existing wide arc gap device for sealing magnetic fluid sealing property reliability poor.
Description
Technical field
This utility model is related to mechanical engineering technical field of sealing technology, refers specifically to a kind of circular cone type device for sealing magnetic fluid.
Background technology
Magnet fluid sealing has zero leakage, the advantages of friction without rigidity, is widely used in all trades and professions.But magnetic fluid
Sealing pressure-bearing value is very sensitive to seal clearance size, if seal clearance increase 0.1mm can make magnetic fluid shaft seal pressure-bearing value
Reduce by more than 10%.When Magneticfluid Seal Technique is applied in major diameter, high speed and heavily loaded sealed environment, the larger footpath of rotating shaft
Require that seal clearance is also larger to jerk value, magnet fluid sealing performance is significantly reduced with the increase of seal clearance, is unfavorable for
Sealing property is stablized, so as to limit Magneticfluid Seal Technique in wide arc gap and application at a high speed, in fully loaded transportation condition.Therefore carry
Under tall and big gap condition, magnet fluid sealing performance has great importance, and existing device for sealing magnetic fluid is under the conditions of wide arc gap
There is the relatively low difficult problem of voltage endurance capability.
The content of the invention
This utility model aims to solve the problem that the defect of prior art, there is provided a kind of strong circular cone type magnet fluid sealing of voltage endurance capability
Device.
The technical solution of the utility model is as follows：A kind of circular cone type device for sealing magnetic fluid, including outer pole shoe, interior pole shoe,
Outer permanent magnet, interior permanent magnet, described interior pole shoe are set on axle, and the outer wall of interior pole shoe is taper seat, on the taper seat between
Every multiple annular groove I are arranged, the part between two adjacent annular groove I is pole tooth I；Peace in described annular groove I
Permanent magnet in dress；
Described outer pole shoe is installed on the inwall of shell, and the inwall of outer pole shoe is taper seat, the inwall of outer pole shoe with it is interior
Pole shoe outer wall is parallel to each other, and on the inwall of outer pole shoe, correspondence annular groove I positions open up multiple annular groove II, and adjacent two
Part between individual annular groove II is pole tooth II；Outer permanent magnet is respectively mounted in described annular groove II；
Described pole tooth I is mutually corresponding with pole tooth II, and gap is left between them.
Bottom surface of the bottom surface of described annular groove I and annular groove II in taper seat, annular groove I and annular groove II
With the outside wall parallel of interior pole shoe, mutually corresponding annular groove I and annular groove II be located at axle it is same radially.
Permanent magnet of the described interior permanent magnet for split-type, by the tapered set of permanent magnets of the equal semicircle of two block sizes into interior
The parallel bottom surface with annular groove I of the inner surface and outer surface of permanent magnet；Described outer permanent magnet is split-type permanent magnet, by
The equal a quarter pyramid type set of permanent magnets of four block sizes is into the inner surface and outer surface of outer permanent magnet is recessed each parallel to annular
The bottom surface of groove II；Depth of the height of described interior permanent magnet less than annular groove I, the height of outer permanent magnet are less than annular groove
The depth of II.
Described interior permanent magnet and outer permanent magnet are axial charging type permanent magnet, in the same interior permanent magnetism radially of axle
The magnetic line of force of body and outer permanent magnet is in opposite direction；On interior pole shoe, the adjacent interior permanent magnet magnetic line of force is in opposite direction, phase on outer pole shoe
The magnetic line of force of adjacent outer permanent magnet is in opposite direction.
The axial length of described interior pole shoe and outer pole shoe is equal.
Also include magnetism-isolating loop and bearing, magnetism-isolating loop and bearing are installed successively in the left side of interior pole shoe and outer pole shoe, in interior pole
The right side of boots and outer pole shoe is installed by magnetism-isolating loop and bearing successively.
Described magnetism-isolating loop includes outer magnetism-isolating loop and interior magnetism-isolating loop, and described outer magnetism-isolating loop is installed on the inwall of shell, interior
Magnetism-isolating loop is installed on axle, and the internal diameter of outer magnetism-isolating loop is more than the external diameter of interior magnetism-isolating loop, and outer magnetism-isolating loop is long with the axial direction of interior magnetism-isolating loop
Degree is equal.
The outer wall of described outer pole shoe opens up an annular groove III respectively near the position of left and right end portions, recessed in annular
Rubber seal is installed in groove III.
The quantity of described interior permanent magnet is 2-10, and the quantity of outer permanent magnet is equal with the quantity of interior permanent magnet.
Gap length between described pole tooth I and pole tooth II is 0.1mm-5mm.
The installation process of sealing device described in the utility model is as follows：
Interior permanent magnet is installed in the annular groove I of interior pole shoe outer wall, interior pole shoe is installed on into the middle part of axle, in interior pole
The outer wall injection magnetic fluid of boots；Outer permanent magnet is installed in the annular groove II of outer pole shoe inwall, in outer pole shoe outer wall
Installation rubber ring in annular groove III, then outer pole shoe is installed on the inwall of shell, make the end face pair of outer pole shoe and interior pole shoe
Together, annular groove I and annular groove II are mutually aligned, and pole tooth I and pole tooth II are mutually aligned；Pacify in the left side of interior pole shoe successively
Dress magnetism-isolating loop and bearing, install magnetism-isolating loop and bearing successively on the right side of interior pole shoe；End cap is finally installed on the right-hand member of shell,
The outer wall of end cap is attached by screw thread with the inwall of shell, makes end cap compress the outer ring of the bearing positioned at right side.
The inwall of the outer wall of interior pole shoe and outer pole shoe is arranged to taper seat by this utility model, and is opened up on taper seat recessed
Groove, installs permanent magnet in groove, injects magnetic fluid, realize circular cone type magnetic current on the inwall of the outer wall and outer pole shoe of interior pole shoe
Body is sealed, and the sealing structure can effectively prolong the leakage of resistance magnet fluid sealing；In the circle of the pyramid type outer wall and outer pole shoe of interior pole shoe
Multiple permanent magnets are respectively mounted on tapered walls, the magnetic source abundance of the sealing structure is made, the magnetic field force that magnetic fluid is subject to is strong, improves
The overall voltage endurance capability of sealing device, expands its range of safety operation；This utility model overcomes existing wide arc gap magnetic fluid close
The poor difficult problem of seal apparatus sealing property reliability；Sealing device structure described in the utility model is simple, it is easy to install.
Description of the drawings
Fig. 1 is schematic diagram of sealing device described in the utility model
In figure, each sequence number and corresponding structure title are as follows：1- axles, 2- shells, 3- bearings, magnetism-isolating loop in 4-, 5- are outer every magnetic
Ring, the outer pole shoe of 6- annular groove II, 7- annular groove I, 8-, pole shoe in 9-, the outer permanent magnets of 10-, permanent magnet in 11-, 12- ends
Lid, 13- annular groove III, 14- poles tooth II, 15- poles tooth I.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is further described.
A kind of circular cone type device for sealing magnetic fluid as described in Figure 1, including it is outer pole shoe 8, interior pole shoe 9, outer permanent magnet 10, interior
Permanent magnet 11, described interior pole shoe 9 are set on axle 1, and the outer wall of interior pole shoe 9 is taper seat, the interval setting on the taper seat
Multiple annular groove I7, the part between two adjacent annular groove I7 are pole tooth I15；Peace in described annular groove I7
Permanent magnet 11 in dress；
Described outer pole shoe 8 is installed on the inwall of shell 2, and the inwall of outer pole shoe 8 is taper seat, the inwall of outer pole shoe 8
It is parallel to each other with 9 outer wall of interior pole shoe, on the inwall of outer pole shoe 8, correspondence annular groove I7 positions open up multiple annular groove II6,
Part between two adjacent annular groove II6 is pole tooth II14；Outer permanent magnet is respectively mounted in described annular groove II6
10；
Described pole tooth I15 is mutually corresponding with pole tooth II14, and gap is left between them.
The bottom surface of described annular groove I7 and annular groove II6 is in taper seat, annular groove I7 and annular groove II6's
The outside wall parallel of bottom surface and interior pole shoe 9, mutually corresponding annular groove I7 and annular groove II6 be located at axle 1 it is same radially.
Described interior permanent magnet 11 for split-type permanent magnet, by the tapered set of permanent magnets of the equal semicircle of two block sizes into,
The parallel bottom surface with annular groove I7 of the inner surface and outer surface of interior permanent magnet 11；Described outer permanent magnet 10 be split-type forever
Magnet, by the equal a quarter pyramid type set of permanent magnets of four block sizes into the inner surface and outer surface of outer permanent magnet 10 are put down
Row is in the bottom surface of annular groove II6；Depth of the height of described interior permanent magnet 11 less than annular groove I7, outer permanent magnet 10
Depth highly less than annular groove II6.
Described interior permanent magnet 11 and outer permanent magnet 10 be axial charging type permanent magnet, axle 1 it is same radially
The magnetic line of force of interior permanent magnet 11 and outer permanent magnet 10 is in opposite direction；11 magnetic line of force direction phase of interior permanent magnet adjacent on interior pole shoe 9
Instead, the magnetic line of force of outer permanent magnet 10 adjacent on outer pole shoe 8 is in opposite direction.
The axial length of described interior pole shoe 9 and outer pole shoe 8 is equal.
Also include magnetism-isolating loop and bearing 3, magnetism-isolating loop and bearing 3 are installed successively in the left side of interior pole shoe 9 and outer pole shoe 8,
The right side of interior pole shoe 9 and outer pole shoe 8 is installed by magnetism-isolating loop and bearing 3 successively.
Described magnetism-isolating loop includes outer magnetism-isolating loop 5 and interior magnetism-isolating loop 4, and described outer magnetism-isolating loop 5 is installed on the interior of shell 2
Wall, interior magnetism-isolating loop 4 are installed on axle 1, and the internal diameter of outer magnetism-isolating loop 5 is more than the external diameter of interior magnetism-isolating loop 4, and outer magnetism-isolating loop 5 is with interior every magnetic
The axial length of ring 4 is equal.
The outer wall of described outer pole shoe 8 opens up an annular groove III13 respectively near the position of left and right end portions, in annular
Rubber seal is installed in groove III13.
The quantity of described interior permanent magnet 11 is 2-10, the quantity phase of the quantity of outer permanent magnet 10 and interior permanent magnet 11
Deng.
Gap length between described pole tooth I15 and pole tooth II14 is 0.1mm-5mm.
The installation process of sealing device described in the utility model is as follows：
Interior permanent magnet 11 is installed in the annular groove I7 of 9 outer wall of interior pole shoe, interior pole shoe 9 is installed on into the middle part of axle 1,
In the outer wall injection magnetic fluid of interior pole shoe 9；Outer permanent magnet 10 is installed in the annular groove II6 of 8 inwall of outer pole shoe, outside
Installation rubber ring in the annular groove III13 of 8 outer wall of pole shoe, then outer pole shoe 8 is installed on the inwall of shell 2, make 8 He of outer pole shoe
The end face alignment of interior pole shoe 9, annular groove I7 and annular groove II6 are mutually aligned, and pole tooth I15 and pole tooth II14 are mutually aligned；
Magnetism-isolating loop and bearing 3 are installed successively in the left side of interior pole shoe 9, magnetism-isolating loop and bearing 3 are installed successively on the right side of interior pole shoe 9；Most
End cap 12 is installed on the right-hand member of shell 2 afterwards, outer wall and the inwall of shell 2 of end cap 12 are attached by screw thread, make end cap
12 outer rings for compressing the bearing positioned at right side.
Claims (10)
1. a kind of circular cone type device for sealing magnetic fluid, including outer pole shoe（8）, interior pole shoe（9）, outer permanent magnet（10）, interior permanent magnet
（11）, it is characterised in that：Described interior pole shoe（9）It is set in axle（1）On, interior pole shoe（9）Outer wall is taper seat, in the taper seat
The multiple annular groove I of upper interval setting（7）, adjacent two annular groove I（7）Between part be pole tooth I（15）；It is described
Annular groove I（7）Permanent magnet in interior installation（11）；
Described outer pole shoe（8）It is installed on shell（2）Inwall on, outer pole shoe（8）Inwall be taper seat, outer pole shoe（8）'s
Inwall and interior pole shoe（9）Outer wall is parallel to each other, in outer pole shoe（8）Inwall on correspondence annular groove I（7）Position opens up multiple rings
Connected in star II（6）, adjacent two annular groove II（6）Between part be pole tooth II（14）；Described annular groove II（6）
Outer permanent magnet is respectively mounted inside（10）；
Described pole tooth I（15）With pole tooth II（14）Mutually correspondence, leaves gap between them.
2. circular cone type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described annular groove I（7）And ring
Connected in star II（6）Bottom surface be in taper seat, annular groove I（7）With annular groove II（6）Bottom surface and interior pole shoe（9）Outer wall
It is parallel, mutually corresponding annular groove I（7）With annular groove II（6）Positioned at axle（1）It is same radially.
3. circular cone type device for sealing magnetic fluid as claimed in claim 2, it is characterised in that：Described interior permanent magnet（11）To divide
The permanent magnet of flap-type, by the tapered set of permanent magnets of the equal semicircle of two block sizes into interior permanent magnet（11）Inner surface and outer surface
Parallel and annular groove I（7）Bottom surface；Described outer permanent magnet（10）It is for split-type permanent magnet, equal by four block sizes
A quarter pyramid type set of permanent magnets is into outer permanent magnet（10）Inner surface and outer surface each parallel to annular groove II（6）'s
Bottom surface；Described interior permanent magnet（11）Height be less than annular groove I（7）Depth, outer permanent magnet（10）Height be less than ring
Connected in star II（6）Depth.
4. circular cone type device for sealing magnetic fluid as claimed in claim 3, it is characterised in that：Described interior permanent magnet（11）With it is outer
Permanent magnet（10）Axial charging type permanent magnet is, in axle（1）Same interior permanent magnet radially（11）With outer permanent magnet
（10）The magnetic line of force it is in opposite direction；Interior pole shoe（9）Upper adjacent interior permanent magnet（11）The magnetic line of force is in opposite direction, outer pole shoe（8）On
Adjacent outer permanent magnet（10）The magnetic line of force it is in opposite direction.
5. circular cone type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described interior pole shoe（9）With outer pole
Boots（8）Axial length it is equal.
6. circular cone type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Also include magnetism-isolating loop and bearing（3）,
In interior pole shoe（9）With outer pole shoe（8）Left side magnetism-isolating loop and bearing are installed successively（3）, in interior pole shoe（9）With outer pole shoe（8）'s
Right side is installed by magnetism-isolating loop and bearing successively（3）.
7. circular cone type device for sealing magnetic fluid as claimed in claim 6, it is characterised in that：Described magnetism-isolating loop includes outer every magnetic
Ring（5）With interior magnetism-isolating loop（4）, described outer magnetism-isolating loop（5）It is installed on shell（2）Inwall, interior magnetism-isolating loop（4）It is installed on axle
（1）On, outer magnetism-isolating loop（5）Internal diameter be more than interior magnetism-isolating loop（4）External diameter, outer magnetism-isolating loop（5）With interior magnetism-isolating loop（4）Axial direction it is long
Degree is equal.
8. circular cone type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described outer pole shoe（8）Outer wall
Position near left and right end portions opens up an annular groove III respectively（13）, in annular groove III（13）Interior installation rubber seal
Circle.
9. circular cone type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described interior permanent magnet（11）Number
Measure as 2-10, outer permanent magnet（10）Quantity and interior permanent magnet（11）Quantity it is equal.
10. circular cone type device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described pole tooth I（15）With pole tooth
II（14）Between gap length be 0.1mm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621045347.9U CN206054549U (en) | 2016-09-09 | 2016-09-09 | A kind of circular cone type device for sealing magnetic fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621045347.9U CN206054549U (en) | 2016-09-09 | 2016-09-09 | A kind of circular cone type device for sealing magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054549U true CN206054549U (en) | 2017-03-29 |
Family
ID=58371167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621045347.9U Withdrawn - After Issue CN206054549U (en) | 2016-09-09 | 2016-09-09 | A kind of circular cone type device for sealing magnetic fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054549U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122285A (en) * | 2016-09-09 | 2016-11-16 | 广西科技大学 | A kind of circular cone type device for sealing magnetic fluid |
| CN107620799A (en) * | 2017-10-30 | 2018-01-23 | 广西科技大学 | A kind of high vacuum device for sealing magnetic fluid |
| CN107816553A (en) * | 2017-12-13 | 2018-03-20 | 广西科技大学 | A kind of ladder shaft type device for sealing magnetic fluid |
| CN109268507A (en) * | 2018-10-29 | 2019-01-25 | 广西科技大学 | A kind of more ring-like device for sealing magnetic fluid of magnetic source magnetic conduction |
-
2016
- 2016-09-09 CN CN201621045347.9U patent/CN206054549U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122285A (en) * | 2016-09-09 | 2016-11-16 | 广西科技大学 | A kind of circular cone type device for sealing magnetic fluid |
| CN106122285B (en) * | 2016-09-09 | 2018-03-20 | 广西科技大学 | A kind of circular cone type device for sealing magnetic fluid |
| CN107620799A (en) * | 2017-10-30 | 2018-01-23 | 广西科技大学 | A kind of high vacuum device for sealing magnetic fluid |
| CN107620799B (en) * | 2017-10-30 | 2023-05-05 | 广西科技大学 | Magnetic fluid sealing device for high vacuum |
| CN107816553A (en) * | 2017-12-13 | 2018-03-20 | 广西科技大学 | A kind of ladder shaft type device for sealing magnetic fluid |
| CN107816553B (en) * | 2017-12-13 | 2019-06-28 | 广西科技大学 | A kind of ladder shaft type device for sealing magnetic fluid |
| CN109268507A (en) * | 2018-10-29 | 2019-01-25 | 广西科技大学 | A kind of more ring-like device for sealing magnetic fluid of magnetic source magnetic conduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170329 Effective date of abandoning: 20180320 |
|
| AV01 | Patent right actively abandoned |