CN105465518B - A kind of magnetic seal swivel joint - Google Patents
A kind of magnetic seal swivel joint Download PDFInfo
- Publication number
- CN105465518B CN105465518B CN201610019005.8A CN201610019005A CN105465518B CN 105465518 B CN105465518 B CN 105465518B CN 201610019005 A CN201610019005 A CN 201610019005A CN 105465518 B CN105465518 B CN 105465518B
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- magnetic
- sealing
- conduction axle
- magnetic conduction
- 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.)
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0849—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid being turned through an angle when passing from one joint element to another
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
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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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3444—Pressing means by magnetic attraction
Abstract
The present invention relates to a kind of magnetic seal swivel joint, including fixed sealing, dynamic sealing and permanent magnetic ring, fixed sealing is fixedly connected with roll sleeve, is sequentially provided with permanent magnetic ring, bearing, magnetic conduction axle sleeve one and magnetic conduction axle sleeve two in its housing from inside to outside；Magnetic conduction axle sleeve two is fixedly connected with dynamic sealing end；The side of magnetic conduction axle sleeve one and magnetic conduction axle sleeve two-phase contact is inlaid with respectively determines sealing surface and dynamic sealing face；Dynamic sealing and determine to fix by circlip for hole between seal casinghousing；Close to ring flange side determine water channel is set on seal casinghousing, determine seal casinghousing, permanent magnetic ring, bearing, magnetic conduction axle sleeve one, magnetic conduction axle sleeve two, dynamic sealing and mandrel intracavity inter-connection formation roll cooling water logical circulation road.The present invention realizes magnetic seal by fixed sealing and dynamic sealing are closely coupled by the effect of the mirror image of magnetic force, seals firm stable；Antiscale, scale removal can be played a part of to the magnetization of cooling water by permanent magnetic ring simultaneously.
Description
Technical field
The present invention relates to a kind of roll cooling swivel joint, more particularly to a kind of magnetic seal swivel joint.
Background technology
In the actual production of large-scale steel mill, the application of large-scale roller is very extensive, and the rotation for being directed to roll cooling connects
Head is the critical component for ensureing that roll normal work, continuous casting are reliable and stable.The seal form of currently used swivel joint
Seal for spring mechanical, failed after frequently resulting in spring corrosion and scaling due to the effect of cooling water in use, incrustation scale card
Unbalance stress is caused in the spring, causes to determine sealing surface and dynamic sealing face gap is excessive, cause cooling water leakage, when leakage rate is big
Swivel joint loses due function, can not ensure the cooling effect to continuous cast roller and roller bearing, under causing Continuous Casting Rolls too early
Line repairs.
The content of the invention
The invention provides a kind of magnetic seal swivel joint, and spring is replaced using magnetic element, is made by the mirror image of magnetic force
With by fixed sealing and dynamic sealing is closely coupled realizes magnetic seal, its attachment structure uniform force, firm stable is sealed；Lead to simultaneously
Antiscale, scale removal can be played a part of to the magnetization of cooling water by crossing permanent magnetic ring, reduce corruption of the cooling water to machine components
Erosion, extends its service life.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of magnetic seal swivel joint, including fixed sealing, dynamic sealing and permanent magnetic ring, it is described to seal calmly by ring flange and phase
Cylindrical housings even are formed, and permanent magnetic ring, bearing, magnetic conduction axle sleeve one and magnetic conduction axle sleeve are sequentially provided with from inside to outside in its housing
Two；Permanent magnetic ring is embedded in the inner walls for determining sealing, is connected magnetic conduction axle sleeve one by bearing, is arranged and set in the lump with magnetic conduction axle sleeve
The magnetic conduction axle sleeve two put is fixedly connected with stretching into the dynamic sealing end determined in seal casinghousing；Magnetic conduction axle sleeve one and magnetic conduction axle sleeve two-phase
The side of contact is inlaid with respectively determines sealing surface and dynamic sealing face, and it is Relative friction pair to determine sealing surface with dynamic sealing face；It is dynamic close
Seal and determine to fix by circlip for hole between seal casinghousing, the other end of dynamic sealing is connected with roll mandrel；Close to flange
The water channel of determining to set on the housing of sealing of disk side is connected with outside cooling circulating water system, determines seal casinghousing, permanent magnetic ring, axle
Hold, the intracavity inter-connection of magnetic conduction axle sleeve one, magnetic conduction axle sleeve two, dynamic sealing and mandrel forms roll cooling water logical circulation road.
The material of the permanent magnetic ring is ndfeb magnet, and its outer surface sets corrosion-inhibiting coating.
It is described to determine sealing surface and dynamic sealing face is made up of carbide ceramics material.
Described to determine seal casinghousing and be made up of austenitic stainless steel or aluminum-bronze material, base is by martensite stainless steel material system
Into.
Compared with prior art, the beneficial effects of the invention are as follows：
1) fixed sealing and being rotatably connected between dynamic sealing are ensured by suction caused by permanent magnetic ring, passes through the mirror of magnetic force
As effect is by fixed sealing and dynamic sealing is closely coupled realizes magnetic seal, its attachment structure uniform force, firm stable is sealed；
2) magnetized using the cooling water of the effect convection current supercooled water path in magnetic field, antiscale, scale removal can be played
Effect, be advantageous to the service life of prolonged mechanical part；
3) determine seal casinghousing to be made from the NULL such as austenitic stainless steel or aluminium bluish yellow copper product, prevent shell band
Magnetic；
4) determine sealing surface and dynamic sealing face to be made of carbide ceramics materials such as SiC, WC, its surface smoothness is high, rubs
It is small to wipe resistance, and there is very high wearability.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the outline drawing of the present invention.
In figure：1. the bearing 7. of 2. permanent magnetic ring, 3. magnetic conduction axle sleeve, one 4. magnetic conduction axle sleeve, 2 5. dynamic sealing 6. is sealed surely
The water channel of 8. dynamic sealing shell of circlip for hole 9.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
See Fig. 1-Fig. 2, be the structural representation of the present invention, a kind of magnetic seal swivel joint of the invention, including fixed sealing 1,
Dynamic sealing 5 and permanent magnetic ring 2, the sealing 1 surely are made up of ring flange with the cylindrical housings being connected, in its housing from inside to outside
It is sequentially provided with permanent magnetic ring 2, bearing 6, magnetic conduction axle sleeve 1 and magnetic conduction axle sleeve 24；Permanent magnetic ring 2 is embedded in the housing of fixed sealing 1
On inwall, magnetic conduction axle sleeve 1 is connected by bearing 6, it is surely close with stretching into the magnetic conduction axle sleeve 24 that magnetic conduction axle sleeve 1 is arranged side by side
The end of dynamic sealing 5 sealed in 1 housing is fixedly connected；The side that magnetic conduction axle sleeve 1 and magnetic conduction axle sleeve 24 are in contact is inlaid with respectively
Determine sealing surface and dynamic sealing face, and it is Relative friction pair to determine sealing surface with dynamic sealing face；Dynamic sealing 5 with surely sealing 1 housing it
Between fixed by circlip for hole 7, the other end of dynamic sealing 5 is connected with roll mandrel；Determine sealing 1 close to ring flange side
Water channel 9 is set on housing to be connected with outside cooling circulating water system, seals 1 housing, permanent magnetic ring 2, bearing 6, magnetic conduction axle sleeve one surely
3rd, the intracavity inter-connection of magnetic conduction axle sleeve 24, dynamic sealing 5 and mandrel forms roll cooling water logical circulation road.
The material of the permanent magnetic ring 2 is ndfeb magnet, and its outer surface sets corrosion-inhibiting coating.
It is described to determine sealing surface and dynamic sealing face is made up of carbide ceramics material.
Surely 1 housing that seals is made up of austenitic stainless steel or aluminum-bronze material, and dynamic sealing shell 8 is stainless by martensite
Steel material is made.
The present invention is directed to the deficiency of existing machinery formula seal swivel joint, there is provided a kind of service life is long, fault rate is low
Magnetic seal swivel joint.In the present invention, the part determined in sealing 1 positioned at the side of magnetic conduction axle sleeve 1 is fixed, is located at
The part that the side of magnetic conduction axle sleeve 24 is connected with dynamic sealing 5 and roll mandrel synchronous rotary；Mirror of the dynamic sealing 1 by permanent magnetic ring 2
As magnetic force attracts by one 3 groups of being attached on magnetic conduction axle sleeve 1 tightly of magnetic conduction axle sleeve 24, magnetic conduction axle sleeve 24 and magnetic conduction axle sleeve
Friction pair in a pair, and form balanced mechanical seal structure.
According to magnet characteristic, for the present invention from ndfeb magnet as the material for making permanent magnetic ring 2, it has superpower suction
Gravitation, the object of 500-600 times of own wt can be adsorbed, the checking computations of absorption affinity are real between fixed sealing 1 and dynamic sealing 5 below
Example：
If magnetic seal swivel joint works, 5 vertical resistance of dynamic sealing is F1=10 × 0.5kg=5N, and resistance to water-flow is
10N, the magnetic force that drawing permanent magnetic ring 2 needs are：20N~30N；
The design size of permanent magnetic ring 2 is：Height 50mm, thickness 6mm, diameter 20mm, calculating the weight of permanent magnetic ring 2 is：M
=3.14 × 62×50×7.45(kg/cm3)=42g；
The adsorbable weight of permanent magnetic ring 2 is：F=42 × (500~600)=21N~25N, it is computed result and draws knot
By permanent magnetic ring 2 disclosure satisfy that demand.
It is that the carbide ceramics material such as SiC, WC is made to determine sealing surface with dynamic sealing face, and itself is nonmagnetic but magnetic permeability
Good, contact surface finish is high, has the optical surface more smoother than two light belts.Determine the ceramic material of sealing surface and dynamic sealing face
Material forms through isostatic pressed and high temperature sintering, under containing environment such as hard impurity, abrasive grains, still has very high resistance to
Grind performance.Because its is highly polished, frictional resistance is small, therefore coaxially rotating against between 1 will not be sealed to dynamic sealing 5 and surely
Have an impact, and the effect of rotatory sealing can be ensured.
When water flowing cools down, the permanent magnetic ring 2 in cooling water-flowing path has magnetization to the cooling water flowed through,
The generation of incrustation scale can be reduced.
Surely seal 1 hull outside to be made of austenitic stainless steel or aluminum-bronze material, play a part of externally every magnetic,
Harmful effect will not be produced to integral device.
Surely it is cylindrical housings to seal 1 main body, and housing cavity is provided with groove and is used to installing permanent magnetic ring 2, permanent magnetic ring 2 with
The outer ring of bearing 6 is set in together, and bearing 6 is used to bear axial force caused by housing swing, and makes to protect between mandrel and housing
Safety clearance is held, the inner ring of bearing 6 is fixedly connected with magnetic conduction axle sleeve 1.
Groove is provided with 1 housing outer of fixed sealing, is used in the circlip for hole 7 of groove installation to the portion in housing
Part and dynamic sealing 5 carry out axially position and fixation.
During using the present invention, a magnetic swivel joint is installed respectively at the mandrel both ends of roll and forms circulating cooling current
Path, when roll works, cooling water is injected in roll mandrel by water channel 9 and cooled down, ensure that roll normal work.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Design is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (1)
- A kind of 1. magnetic seal swivel joint, it is characterised in that including fixed sealing, dynamic sealing and permanent magnetic ring, the fixed sealing by Ring flange and the cylindrical housings being connected are formed, and permanent magnetic ring, bearing, magnetic conduction axle sleeve one are sequentially provided with from inside to outside in its housing With magnetic conduction axle sleeve two；Permanent magnetic ring is embedded in the inner walls for determining sealing, and magnetic conduction axle sleeve one, permanent magnetic ring are connected by bearing It is set in together with bearing outer ring, bearing inner race is fixedly connected with magnetic conduction axle sleeve one；The magnetic conduction axle sleeve two for arranging setting in the lump with magnetic conduction axle sleeve is fixedly connected with stretching into the dynamic sealing end determined in seal casinghousing；Lead The side of magnetic axis set one and magnetic conduction axle sleeve two-phase contact is inlaid with respectively determines sealing surface and dynamic sealing face, and it is close with moving to determine sealing surface Front cover is Relative friction pair, determines sealing surface and dynamic sealing face is made up of carbide ceramics material；Dynamic sealing and determine to fix by circlip for hole between seal casinghousing, the other end of dynamic sealing is connected with roll mandrel； Water channel of determining to set on the housing of sealing close to ring flange side is connected with outside cooling circulating water system, determines seal casinghousing, permanent magnetism Magnet ring, bearing, magnetic conduction axle sleeve one, magnetic conduction axle sleeve two, the intracavity inter-connection of dynamic sealing and mandrel form roll cooling water logical circulation road；The material of the permanent magnetic ring is ndfeb magnet, and its outer surface sets corrosion-inhibiting coating, when water flowing cools down, installed in cooling Permanent magnetic ring in water-flowing path has magnetization to the cooling water flowed through, can reduce the generation of incrustation scale；Surely the housing sealed is made up of austenitic stainless steel or aluminum-bronze material, and the shell of dynamic sealing is by martensitic stain less steel Material is made, and plays a part of externally every magnetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019005.8A CN105465518B (en) | 2016-01-13 | 2016-01-13 | A kind of magnetic seal swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019005.8A CN105465518B (en) | 2016-01-13 | 2016-01-13 | A kind of magnetic seal swivel joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465518A CN105465518A (en) | 2016-04-06 |
| CN105465518B true CN105465518B (en) | 2018-02-27 |
Family
ID=55603529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019005.8A Active CN105465518B (en) | 2016-01-13 | 2016-01-13 | A kind of magnetic seal swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465518B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107523849A (en) * | 2017-08-24 | 2017-12-29 | 上海运申制版模具有限公司 | A kind of magetic indicator joint device for being used between roller connect |
| CN109399749B (en) * | 2018-10-10 | 2023-12-12 | 无锡万川环境装备技术有限公司 | Shallow air floating center rotary sealing device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4299415A (en) * | 1978-12-21 | 1981-11-10 | Patco | Swivel fitting and method for making |
| EP0105616A3 (en) * | 1982-09-03 | 1984-09-26 | Cannings, John Arthur | Magnetic rotary seal |
| SU1406408A1 (en) * | 1986-01-04 | 1988-06-30 | Ленинградский механический институт им.Маршала Советского Союза Устинова Д.Ф. | Combination seal |
| CN100434775C (en) * | 2002-07-08 | 2008-11-19 | Aes工程有限公司 | Rotary seal |
| CN201007403Y (en) * | 2007-01-23 | 2008-01-16 | 浙江柏润液压有限公司 | Single tube rotary joint for cooling |
| CN201193709Y (en) * | 2007-11-24 | 2009-02-11 | 浙江长城减速机有限公司 | Magnetic mechanical oil seal |
| CN205371893U (en) * | 2016-01-13 | 2016-07-06 | 辽宁天利再造科技股份有限公司 | Magnetic seal rotary joint |
-
2016
- 2016-01-13 CN CN201610019005.8A patent/CN105465518B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105465518A (en) | 2016-04-06 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 114011 No. 6, Hongqi Street South, Qianshan District, Liaoning, Anshan Applicant after: LIAONING TIANLI REENGINEERING TECHNOLOGY CO., LTD. Address before: 114011 No. 6, Hongqi Street South, Qianshan District, Liaoning, Anshan Applicant before: ANSHAN TIANLI ENGINEERING MACHINERY CO., LTD. |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |