CN106090238A - A kind of staggered device for sealing magnetic fluid of split-type - Google Patents
A kind of staggered device for sealing magnetic fluid of split-type Download PDFInfo
- Publication number
- CN106090238A CN106090238A CN201610666381.6A CN201610666381A CN106090238A CN 106090238 A CN106090238 A CN 106090238A CN 201610666381 A CN201610666381 A CN 201610666381A CN 106090238 A CN106090238 A CN 106090238A
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- type
- split
- permanent magnet
- pole shoe
- interior
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Classifications
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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 mechanical engineering technical field of sealing technology, refer specifically to a kind of staggered device for sealing magnetic fluid of split-type, this device includes permanent magnet, the outer permanent magnet of split-type in interior pole shoe ring, split-type outer pole shoe, split-type；The outer pole shoe of split-type is positioned at the outside of pole shoe ring, and the internal diameter of the outer pole shoe of split-type is more than the external diameter of interior pole shoe ring；Multiple annular groove I is offered at the periphery interval of interior pole shoe ring, installs permanent magnet in split-type in annular groove I；On the inner headed face of the outer pole shoe of split-type, multiple annular groove II is offered at interval, installs the outer permanent magnet of split-type in annular groove II；Annular groove I is positioned on the center line of annular groove II distance two-by-two, and annular groove II is positioned on the center line of annular groove I distance two-by-two；In in split-type, permanent magnet stretches into the space between the outer permanent magnet of split-type, the outer permanent magnet of split-type stretches in split-type in the space between permanent magnet.Sealing device of the present invention improves the pressure performance of split-type device for sealing magnetic fluid.
Description
Technical field
The present invention relates to mechanical engineering technical field of sealing technology, refer specifically to a kind of simple in construction, sealing property divides lobe reliably
The staggered device for sealing magnetic fluid of formula.
Background technology
Magnet fluid sealing has the advantages such as zero leakage, long-life, high reliability and is widely used in all trades and professions,
But traditional device for sealing magnetic fluid is overall structure, during assembling sealing device, need first at the axle of equipment
End loads sealing device, is connected, when the axle of magnet fluid sealing place rotary shaft with complicated equipment by equipment axle head the most again
End connection equipment is complicated, the inconvenient situation even not allowing dismounting of mounting or dismounting, and not only assembling process needs to take a substantial amount of time,
Assembling effect is affected, and is difficult to change when seal failure and seals parts accordingly.For this defect, utilize a point lobe
The sealing structure of formula, makes device for sealing magnetic fluid become possibility, convenient maintenance and replacement, but existing point for complex device
There is the difficult problem that sealing voltage endurance capability is relatively low in flap-type device for sealing magnetic fluid, makes the sealing device of split-type be difficult to be used in high pressure etc.
Under operating mode.
Summary of the invention
The present invention is directed to the defect of prior art, relate to a kind of simple in construction, it is simple to installation and maintenance, dividing of good pressure-resistant performance
Flap-type device for sealing magnetic fluid.
Technical scheme is as follows:
A kind of staggered device for sealing magnetic fluid of split-type, including in axle, shell, interior pole shoe ring, split-type outer pole shoe, split-type
The outer permanent magnet of permanent magnet, split-type, described axle is installed in shell, and described axle and the cross section of inboard wall of shell are the most concentric
Circle, described interior pole shoe ring is sleeved on axle, and on the periphery of interior pole shoe ring, multiple annular groove I is offered at interval；
The outer pole shoe of described split-type is the most corresponding with interior pole shoe ring, and their axial length is equal, and outside split-type, pole shoe is interior
Footpath is more than the external diameter of interior pole shoe ring；The outer pole shoe of described split-type includes outside upper half pole shoe and outside lower half pole shoe, outside upper half pole shoe
Being installed on the inwall of shell with outside lower half pole shoe, outside upper half pole shoe and outside lower half pole shoe are spliced into the outer pole of split-type of annular
Boots, on the inner headed face of the outer pole shoe of described split-type, interval arranges annular groove II；
The periphery of the interior pole shoe ring between corresponding two the annular groove I in the position of described annular groove II；
In described split-type, permanent magnet includes interior upper half permanent magnet and interior lower half permanent magnet, and interior upper half permanent magnet and interior lower half are forever
Magnet forms complete annular permanent magnet and is installed in annular groove I；Described interior upper half permanent magnet and interior lower half permanent magnet to
The outer pole shoe of split-type extends, and has gap between the inner headed face of the outer pole shoe of split-type；
The outer permanent magnet of described split-type includes outer upper half permanent magnet and outer lower half permanent magnet, and outer upper half permanent magnet and outer lower half are forever
Magnet forms complete annular permanent magnet and is installed in annular groove II；Described outer upper half permanent magnet and outer lower half permanent magnet to
Interior pole shoe ring extends, and has gap between the periphery of interior pole shoe ring.
Sealing device of the present invention also includes that bearing, described bearing are respectively arranged in outside interior pole shoe ring and split-type
On the axle at two ends, pole shoe left and right.
Described outside upper half pole shoe and the periphery of the left and right sides of outside lower half pole shoe are provided with annular groove III, are used for
Rubber seal is installed.
In the outer permanent magnet of described split-type and split-type, permanent magnet is radial magnetizing type permanent magnet, in each split-type
The magnetic line of force direction of permanent magnet is identical, and the magnetic line of force direction of the outer permanent magnet of each split-type is identical, in split-type permanent magnet and point
The magnetic line of force of the outer permanent magnet of flap-type is in opposite direction.
In described split-type, the gap of permanent magnet pole shoe inner headed face outer with split-type is 0.1mm-5mm；Described point lobe
The outer permanent magnet of formula is 0.1mm-5mm with the gap of interior pole shoe ring.
In described split-type, the number of permanent magnet is 3-10.
The number of the outer permanent magnet of described split-type is 2-9.
The installation process of sealing device of the present invention is as follows: interior pole shoe ring be installed on axle, outside interior pole shoe ring
In installing in the annular groove I of disc, upper half permanent magnet and interior lower half permanent magnet, make interior upper half permanent magnet and interior lower half permanent magnet
It is combined into permanent magnet in overall split-type, in split-type two-by-two, injects magnetic fluid in gap between permanent magnet；By outside upper
Half permanent magnet is installed in the annular groove II of outside upper half pole shoe inner headed face, is installed in outside lower half pole shoe by outer lower half permanent magnet
In the annular groove II of disc, in the gap between outer upper half permanent magnet and outer lower half permanent magnet, inject magnetic flow
Body, installs rubber ring in the annular groove III of upper half pole shoe and outside lower half pole shoe periphery outside；Will be with rubber ring and outside upper
Outside upper half pole shoe of half permanent magnet is installed on the outside of interior upper half permanent magnet periphery, will be with rubber ring and outer lower half permanent magnet
Outside lower half pole shoe be installed on the outside of interior lower half permanent magnet periphery, make outer upper half permanent magnet and outer lower half permanent magnet be combined into
The outer permanent magnet of split-type is overall, makes outside upper half pole shoe and the outer pole shoe of outside lower half pole shoe binding constituents flap-type overall；In interior pole shoe ring
It is respectively mounted bearing on the axle at two ends, pole shoe left and right outer with split-type；Installing shell on axle, jacket is lived in state and is installed on axle
On sealing parts, the inwall of shell left end is close to be positioned at the bearing in left side, and the right-hand member of shell is threaded connection with end cap
Fastening, end cap compresses the outer ring of the bearing being positioned at right side.
Device for sealing magnetic fluid of the present invention, is all provided with being set to by permanent magnet in outer for formula pole shoe, formula and the outer permanent magnet of formula
The structure of split-type, is particularly suited for the sealing of the equipment that structure complexity should not dismount, makes the sealing of baroque equipment fill
That puts is easy to maintenance feasible；The outer permanent magnet of the split-type of the present invention stretches into the space in split-type two-by-two between permanent magnet, point lobe
The inner headed face of the outer permanent magnet of formula and interior pole shoe ring form multiple inner seal ring, and in split-type, permanent magnet stretches into two-by-two outside split-type
Space between permanent magnet, in split-type, the periphery of permanent magnet pole shoe outer with split-type forms multiple outer seal ring, so exists
Axle is upwardly formed inside and outside labyrinth seal structure alternately, substantially increases the pressure performance of split-type magnetic fluid sealing structure, expands
Its range of safety operation big；Sealing device structure of the present invention is simple, it is easy to dismounting, reduces the maintenance of sealing device
Cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of sealing device of the present invention
In figure, the structure title of each sign and correspondence is as follows: 1-axle, 2-shell, pole shoe ring in 3-, upper half permanent magnet in 4-, 5-ring
Outside upper half pole shoe of connected in star I, 6-, the outer upper half permanent magnet of 7-, 8-annular groove II, 9-bearing, 10-end cap, 11-annular groove
Outside lower half pole shoe of III, 12-, the outer lower half permanent magnet of 13-, lower half permanent magnet in 14-.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
The staggered device for sealing magnetic fluid of a kind of split-type as described in Figure 1, including axle 1, shell 2, interior pole shoe ring 3, divides
Permanent magnet, the outer permanent magnet of split-type in flap-type outer pole shoe, split-type, described axle 1 is installed in shell, and described axle 1 is with outer
The cross section of inboard wall of shell 2 concentric circular each other, described interior pole shoe ring 3 is sleeved on axle 1, and the periphery of interior pole shoe ring 3 is spaced
Offer multiple annular groove I5；
The outer pole shoe of described split-type is the most corresponding with interior pole shoe ring 3, and their axial length is equal, and outside split-type, pole shoe is interior
Footpath is more than the external diameter of interior pole shoe ring 3；The outer pole shoe of described split-type includes outside upper half pole shoe 6 and outside lower half pole shoe 12, outer upper half
Pole shoe 6 and outside lower half pole shoe 12 are installed on the inwall of shell, and outside upper half pole shoe 6 and outside lower half pole shoe 12 are spliced into annular
The outer pole shoe of split-type, on the inner headed face of the outer pole shoe of described split-type, interval arranges annular groove II8；
The periphery of the interior pole shoe ring 3 between corresponding two the annular groove I5 in the position of described annular groove II8；
In described split-type, permanent magnet includes interior upper half permanent magnet 4 and interior lower half permanent magnet 14, interior upper half permanent magnet 4 and interior under
Half permanent magnet 14 forms complete annular permanent magnet and is installed in annular groove I5；Described interior upper half permanent magnet 4 and interior lower half
Permanent magnet 14 pole shoe outside split-type extends, and has gap between the inner headed face of the outer pole shoe of split-type；
The outer permanent magnet of described split-type includes outer upper half permanent magnet 7 and outer lower half permanent magnet 13, outer upper half permanent magnet 7 and outside lower
Half permanent magnet 13 forms complete annular permanent magnet and is installed in annular groove II8；Described outer upper half permanent magnet 7 and outer lower half
The inside pole shoe ring 3 of permanent magnet 13 extends, and has gap between the periphery of interior pole shoe ring 3.
Sealing device of the present invention also includes that bearing 10, described bearing 10 are respectively arranged in interior pole shoe ring 3 and divide
On the axle 1 at the outer two ends, pole shoe left and right of flap-type.
Described outside upper half pole shoe 6 and the periphery of the left and right sides of outside lower half pole shoe 12 are provided with annular groove III11,
For installing rubber seal.
In the outer permanent magnet of described split-type and split-type, permanent magnet is radial magnetizing type permanent magnet, in each split-type
The magnetic line of force direction of permanent magnet is identical, and the magnetic line of force direction of the outer permanent magnet of each split-type is identical, in split-type permanent magnet and point
The magnetic line of force of the outer permanent magnet of flap-type is in opposite direction.
In described split-type, the gap of permanent magnet pole shoe inner headed face outer with split-type is 0.1mm-5mm；Described point lobe
The outer permanent magnet of formula is 0.1mm-5mm with the gap of interior pole shoe ring.
In described split-type, the number of permanent magnet is 3-10.
The number of the outer permanent magnet of described split-type is 2-9.
The installation process of sealing device of the present invention is as follows: interior pole shoe ring 3 be installed on axle 1, in interior pole shoe ring 3
In installing in the annular groove I5 of periphery, upper half permanent magnet 4 and interior lower half permanent magnet 14, make interior upper half permanent magnet 4 and interior lower half
Permanent magnet 14 is combined into permanent magnet in overall split-type, injects magnetic flow in split-type two-by-two in gap between permanent magnet
Body；Outer upper half permanent magnet 7 is installed in the annular groove II8 of outside upper half pole shoe 6 inner headed face, outer lower half permanent magnet 13 is installed
In the annular groove II8 of outside lower half pole shoe 12 inner headed face, outer upper half permanent magnet 7 and outer lower half permanent magnet 14 it
Between gap in inject magnetic fluid, install in the annular groove III11 of upper half pole shoe 6 and outside lower half pole shoe 12 periphery outside
Rubber ring；To be installed on outside interior upper half permanent magnet 4 periphery with outside upper half pole shoe 6 of rubber ring and outer upper half permanent magnet 7
Side, will be installed on outside interior lower half permanent magnet 14 periphery with outside lower half pole shoe 12 of rubber ring and outer lower half permanent magnet 13
Side, makes outer upper half permanent magnet 7 and the outer permanent magnet of outer lower half permanent magnet 13 binding constituents flap-type overall, makes outside upper half pole shoe 6 with outer
The outer pole shoe of lower half pole shoe 12 binding constituents flap-type is overall；On the axle at the outer two ends, pole shoe left and right of interior pole shoe ring 3 and split-type respectively
Bearing 9 is installed；Installing shell 2 on axle 1, shell 2 covers the above-mentioned sealing parts being installed on axle 1, shell 2 left end interior
Wall is close to be positioned at the bearing 9 in left side, and the right-hand member of shell 2 is threaded connection with end cap 10 and fastens, and end cap 10 compresses and is positioned at
The outer ring of the bearing 9 on right side.
Claims (7)
1. the staggered device for sealing magnetic fluid of split-type, including axle (1), shell (2), interior pole shoe ring (3), the outer pole of split-type
Permanent magnet, the outer permanent magnet of split-type in boots, split-type, described axle (1) is installed in shell (2), described axle (1) and shell
(2) cross section of inboard wall concentric circular each other, it is characterised in that:
Described interior pole shoe ring (3) is sleeved on axle (1), and on the periphery of interior pole shoe ring (3), multiple annular groove I is offered at interval
(5)；
The outer pole shoe of described split-type is the most corresponding with interior pole shoe ring (3), and their axial length is equal, the outer pole shoe of split-type
Internal diameter is more than the external diameter of interior pole shoe ring (3)；The outer pole shoe of described split-type includes outside upper half pole shoe (6) and outside lower half pole shoe
(12), outside upper half pole shoe (6) and outside lower half pole shoe (12) are installed on the inwall of shell, outside upper half pole shoe (6) and outside lower half-shadow
Boots (12) are spliced into the outer pole shoe of split-type of annular, and on the inner headed face of the outer pole shoe of described split-type, interval arranges annular groove
II(8)；
Described annular groove II(8) corresponding two the annular groove I(5 in position) between the periphery of interior pole shoe ring (3)；
In described split-type, permanent magnet includes interior upper half permanent magnet (4) and interior lower half permanent magnet (14), interior upper half permanent magnet (4)
Form complete annular permanent magnet with interior lower half permanent magnet (14) and be installed on annular groove I(5) in；Described interior upper half permanent magnetism
Body (4) and interior lower half permanent magnet (14) pole shoe outside split-type extends, and has gap between the inner headed face of the outer pole shoe of split-type；
The outer permanent magnet of described split-type includes outer upper half permanent magnet (7) and outer lower half permanent magnet (13), outer upper half permanent magnet (7)
Form complete annular permanent magnet with outer lower half permanent magnet (13) and be installed on annular groove II(8) in；Described outer upper half permanent magnetism
Body (7) and outer lower half permanent magnet (13) inwardly pole shoe ring (3) extends, and has gap between the periphery of interior pole shoe ring (3).
2. the staggered device for sealing magnetic fluid of split-type as claimed in claim 1, it is characterised in that: also include bearing (10),
Described bearing (10) is respectively arranged on the axle (1) at interior pole shoe ring (3) and the outer two ends, pole shoe left and right of split-type.
3. the staggered device for sealing magnetic fluid of split-type as claimed in claim 1, it is characterised in that: described outside upper half pole shoe
(6) and the periphery of the left and right sides of outside lower half pole shoe (12) is provided with annular groove III(11), be used for rubber seal is installed
Circle.
4. the staggered device for sealing magnetic fluid of split-type as claimed in claim 1, it is characterised in that: outside described split-type forever
In magnet and split-type, permanent magnet is radial magnetizing type permanent magnet, and in each split-type, the magnetic line of force direction of permanent magnet is identical,
The magnetic line of force direction of the outer permanent magnet of each split-type is identical, permanent magnet and the magnetic line of force direction of the outer permanent magnet of split-type in split-type
On the contrary.
5. the staggered device for sealing magnetic fluid of split-type as claimed in claim 1, it is characterised in that: in described split-type forever
The gap of magnet pole shoe inner headed face outer with split-type is 0.1mm-5mm；Described split-type is outer between permanent magnet and interior pole shoe ring
Gap is 0.1mm-5mm.
6. the staggered device for sealing magnetic fluid of split-type as claimed in claim 1, it is characterised in that: in described split-type forever
The number of magnet is 3-10.
7. the staggered device for sealing magnetic fluid of split-type as claimed in claim 1, it is characterised in that: outside described split-type forever
The number of magnet is 2-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666381.6A CN106090238B (en) | 2016-08-15 | 2016-08-15 | A kind of staggered device for sealing magnetic fluid of split-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666381.6A CN106090238B (en) | 2016-08-15 | 2016-08-15 | A kind of staggered device for sealing magnetic fluid of split-type |
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| Publication Number | Publication Date |
|---|---|
| CN106090238A true CN106090238A (en) | 2016-11-09 |
| CN106090238B CN106090238B (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610666381.6A Active CN106090238B (en) | 2016-08-15 | 2016-08-15 | A kind of staggered device for sealing magnetic fluid of split-type |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374894A (en) * | 2018-02-11 | 2018-08-07 | 广西科技大学 | A kind of embedded type device for sealing magnetic fluid |
| CN108799507A (en) * | 2018-09-13 | 2018-11-13 | 广西科技大学 | A kind of more magnetic source socket type device for sealing magnetic fluid |
| CN108930795A (en) * | 2018-09-03 | 2018-12-04 | 广西科技大学 | A kind of lenticular device for sealing magnetic fluid of mixed type |
| CN109027253A (en) * | 2018-09-13 | 2018-12-18 | 广西科技大学 | A kind of magnetic source alternating expression socket type device for sealing magnetic fluid |
| CN109185464A (en) * | 2018-10-24 | 2019-01-11 | 广西科技大学 | A kind of magnetic conductive cylinder staged 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 |
| 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 |
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| CN103115152A (en) * | 2013-01-30 | 2013-05-22 | 北京交通大学 | Magnetic fluid and maze alternated type combined sealing |
| PL217274B1 (en) * | 2009-03-10 | 2014-06-30 | Akademia Górniczo Hutnicza Im Stanisława Staszica | Hybrid sealing with magnetic fluid for a high-speed shaft |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374894A (en) * | 2018-02-11 | 2018-08-07 | 广西科技大学 | A kind of embedded type device for sealing magnetic fluid |
| CN108374894B (en) * | 2018-02-11 | 2020-08-18 | 广西科技大学 | Embedded magnetic fluid sealing device |
| CN108930795A (en) * | 2018-09-03 | 2018-12-04 | 广西科技大学 | A kind of lenticular device for sealing magnetic fluid of mixed type |
| CN108930795B (en) * | 2018-09-03 | 2023-05-05 | 广西科技大学 | Mixed concave-convex magnetic fluid sealing device |
| CN108799507A (en) * | 2018-09-13 | 2018-11-13 | 广西科技大学 | A kind of more magnetic source socket type device for sealing magnetic fluid |
| CN109027253A (en) * | 2018-09-13 | 2018-12-18 | 广西科技大学 | A kind of magnetic source alternating expression socket type device for sealing magnetic fluid |
| CN109185464A (en) * | 2018-10-24 | 2019-01-11 | 广西科技大学 | A kind of magnetic conductive cylinder staged device for sealing magnetic fluid |
| CN109185464B (en) * | 2018-10-24 | 2020-07-17 | 广西科技大学 | Magnetic conduction cylinder stepped magnetic fluid sealing device |
| 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 |
| 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 |
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