CN110285217A - A kind of four magnetic pole magnetic sealing devices - Google Patents
A kind of four magnetic pole magnetic sealing devices Download PDFInfo
- Publication number
- CN110285217A CN110285217A CN201910564513.8A CN201910564513A CN110285217A CN 110285217 A CN110285217 A CN 110285217A CN 201910564513 A CN201910564513 A CN 201910564513A CN 110285217 A CN110285217 A CN 110285217A
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- China
- Prior art keywords
- ring
- magnetic
- sealing
- seal stationary
- face
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/28—Arrangement of seals
-
- 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
-
- 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
- F16J15/38—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
A kind of four magnetic pole magnetics sealing device disclosed by the invention, belongs to technical field of mechanical.The present invention includes rotating ring mounting base, moving sealing ring, the first sealing rubber ring, the second sealing rubber ring and magnetic seal stationary ring.There are four magnetic poles on the magnetic seal stationary ring, are connect by the second sealing rubber ring with wheel chamber casing；The moving sealing ring and rotating ring mounting base forms moving ring assembly using interference press-fit, passes through the first sealing rubber ring and rotation axis connection；It attracts each other between the magnetic seal stationary ring and rotating ring mounting base, generates axially combined power；It is in close contact between the magnetic seal stationary ring end face and moving sealing ring end face by magnetic force, forms primary sealing area；Secondary seal is formed by the second sealing rubber ring, the first sealing rubber ring between the magnetic seal stationary ring and wheel chamber casing and rotating ring mounting base and rotary shaft.There is the present invention better freedom from vibration, impact resistance, anti-overturning property and sealing to follow performance, and have longer service life.
Description
Technical field
The present invention relates to a kind of four magnetic pole magnetic sealing devices, more particularly to are suitable for high maneuverability, complex load aviation
Engine shaft end sealing device, belongs to technical field of mechanical.
Background technique
Magnetic sealing means due to containing element is few, occupy little space, frictional heating is few the advantages that be widely used in aviation
Engine shaft end seal.As aero-engine develops towards failure-survival capability, high reliability, high maneuverability direction, it is desirable that answer
Magnetic sealing means for aero-engine shaft end have the characteristics that long-life, low leakage, vibration resistance, impact resistance.
Currently, magnetic sealing means are two magnetic pole forms, i.e., N, S are extremely opposite on magnetic seal stationary ring circumference.With moving ring assembly
When cooperating, there are two stress points in magnetic seal stationary ring whole circumference.Two magnetic pole magnetic sealing devices be suitable for mobility it is low,
On the engine of the single equal working conditions of load.And under the operating condition in face of high maneuverability, complex load, often there is lubricating oil and lets out
The phenomenon that leakage, individual model engine oil leakage problems are serious.Two magnetic pole magnetic sealing devices have the following disadvantages:
1) end face loading force is uneven, and service life is short；
2) anti-vibration, impact capacity are weak, are easy to happen magnetic seal stationary ring flop phenomenon；
3) once magnetic seal stationary ring flop phenomenon occurs, since stress point is less, it is not easy to be restored to working condition.
Summary of the invention
It is often lubricated to solve above-mentioned two magnetic pole magnetics sealing device under the operating condition in face of high maneuverability, complex load
The problem of oil leakage, a kind of four magnetic pole magnetics sealing device technical problems to be solved disclosed by the invention are: in face of high machine
Realized under dynamic property, the operating condition of complex load to seal oil, have better freedom from vibration, impact resistance, anti-overturning property and
Performance is followed in sealing, and has longer service life.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of four magnetic pole magnetics sealing device disclosed by the invention prevents oil pocket for oil pocket to be isolated with air chamber
Lubrication leakage plays the purpose of oil sealing to outside.A kind of four magnetic pole magnetics sealing device includes rotating ring mounting base, seals and move
Ring, the first sealing rubber ring, the second sealing rubber ring and magnetic seal stationary ring.There are four magnetic pole on the magnetic seal stationary ring, by the
Two sealing rubber rings are connect with wheel chamber casing；The moving sealing ring and rotating ring mounting base forms rotating ring group using interference press-fit
Part passes through the first sealing rubber ring and rotation axis connection；It attracts each other, generates between the magnetic seal stationary ring and rotating ring mounting base
Axially combined power；It is in close contact between the magnetic seal stationary ring end face and moving sealing ring end face by magnetic force, forms primary seal
Face；By the second sealing rubber ring, first close between the magnetic seal stationary ring and wheel chamber casing and rotating ring mounting base and rotary shaft
Sealing rubber ring forms secondary seal.
The four magnetic pole magnetic stationary seal rings are permanent-magnet material, and rotating ring mounting base is soft magnetic materials, therebetween mutually
Attract, generates axial magnetic binding force；It is combined between the magnetic seal stationary ring end face and moving sealing ring end face by magnetism
Power is in close contact, and forms primary sealing area, and there are four stress points between magnetic seal stationary ring end face and moving sealing ring end face；
There are four magnetic poles on the magnetic seal stationary ring；Magnetic pole is uniformly distributed on magnetic seal stationary ring circumference, adjacent pole
Between 90 ° of angle；Adjacent pole is opposite pole on the magnetic seal stationary ring.
The utility model has the advantages that
1, compared with two magnetic pole magnetic sealing devices, a kind of four magnetic pole magnetics sealing device disclosed by the invention, magnetic seal
There are four stress points for tool between magnetic pole, with moving sealing ring containing there are four on stationary ring, in the operating condition in face of high maneuverability, complex load
Under the conditions of, it has the advantages that 1) end face loading force is more uniform, there is longer service life.2) strong antijamming capability, no
It is easy to happen magnetic seal stationary ring flop phenomenon.3) once magnetic seal stationary ring flop phenomenon occurs, since stress point is more, hold
Easily it is restored to working condition.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of four magnetic pole magnetics sealing device disclosed by the invention；
Fig. 2 is two magnetic pole magnetic stationary seal ring magnetic domain schematic diagrames；
Fig. 3 is four magnetic pole magnetic stationary seal ring magnetic domain schematic diagrames；
In Fig. 1: 1-rotating ring mounting base, 2-moving sealing rings, the 3-the first sealing rubber ring, 4-rotary shafts, 5-casing shells
Body, the 6-the second sealing rubber ring and 7-magnetic seal stationary rings.
Specific embodiment
Objects and advantages in order to better illustrate the present invention with reference to the accompanying drawing do further summary of the invention with example
Explanation.
Embodiment 1:
As shown in Figure 1, four magnetic pole magnetic sealing device of one kind disclosed in the present embodiment, including rotating ring mounting base 1, sealing are moved
Ring 2, the first sealing rubber ring 3, the second sealing rubber ring 6 and magnetic seal stationary ring 7.There are four magnetic poles on the magnetic seal stationary ring 7, lead to
The second sealing rubber ring 6 is crossed to connect with wheel chamber casing 5；Magnetic pole there are four 7 on the four magnetic pole magnetic stationary seal rings；Magnetic pole is in institute
It is uniformly distributed on four magnetic pole magnetic seal stationary rings, 7 circumference stated, the angle between adjacent pole is 90 °；The four magnetic pole flux densities
Sealing adjacent pole on stationary ring 7 is opposite pole.The four magnetic pole magnetic seal stationary rings 7 pass through the second sealing rubber ring 6 and casing shell
Body 5 connects；The moving sealing ring 2 and rotating ring mounting base 1 are using interference press-fit composition moving ring assembly；Moving ring assembly passes through
Second sealing rubber ring 3 is connect with rotary shaft 4.
As shown in figure 3, the four magnetic pole magnetic seal stationary rings 7 be permanent-magnet material, rotating ring mounting base 1 be soft magnetic materials, two
It attracts each other between person, generates axial magnetic binding force；Pass through magnetic between 2 end face of 7 end face of magnetic seal stationary ring and rotating ring
Property binding force be in close contact, primary sealing area is formed, therebetween there are four stress point；The described four magnetic pole magnetic seal stationary rings 7 with
Wheel chamber casing 5, the rotating ring mounting base 1 and rotary shaft 4 are formed by the second sealing rubber ring 6, the first sealing rubber ring 3 secondary respectively
Grade sealing；Four magnetic pole magnetic sealing devices realize being isolated for oil pocket and air chamber by primary sealing area and secondary seal, prevent oil
The lubrication leakage of chamber plays the purpose of oil sealing to outside.
Above-described specific descriptions have carried out further specifically the purpose of invention, technical scheme and beneficial effects
It is bright, it should be understood that the above is only a specific embodiment of the present invention, the protection model being not intended to limit the present invention
It encloses, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (4)
1. a kind of four magnetic pole magnetic sealing devices, it is characterised in that: including rotating ring mounting base (1), moving sealing ring (2), first close
Sealing rubber ring (3), the second sealing rubber ring (6) and magnetic seal stationary ring (7)；There are four magnetic poles on the magnetic seal stationary ring (7), pass through
Second sealing rubber ring (6) is connect with wheel chamber casing (5)；The moving sealing ring (2) and rotating ring mounting base (1) is press-fitted using interference
Mode forms moving ring assembly, is connect by the first sealing rubber ring (3) with rotary shaft (4)；The magnetic seal stationary ring (7) and rotating ring
Mounting base attracts each other between (1), generates axially combined power；Magnetic seal stationary ring (7) end face and moving sealing ring (2) end face
Between pass through magnetic force be in close contact, formed primary sealing area；The magnetic seal stationary ring (7) and wheel chamber casing (5) and rotating ring are installed
Secondary seal is formed by the second sealing rubber ring (6), the first sealing rubber ring (3) between seat (1) and rotary shaft (4).
2. four magnetic pole magnetic sealing devices of one kind as described in claim 1, it is characterised in that: magnetic pole is in magnetic seal stationary ring (7)
It is uniformly distributed on circumference, 90 ° of the angle between adjacent pole.
3. four magnetic pole magnetic sealing devices of one kind as claimed in claim 1 or 2, it is characterised in that: the magnetic seal stationary ring
(7) adjacent pole is opposite pole on.
4. four magnetic pole magnetic sealing devices of one kind as claimed in claim 3, it is characterised in that: the four magnetic pole magnetic seals are quiet
Ring (7) is permanent-magnet material, and rotating ring mounting base (1) is soft magnetic materials, is attracted each other therebetween, generates axial magnetic binding force；
It is in close contact between magnetic seal stationary ring (7) end face and moving sealing ring (2) end face by magnetic binding force, forms primary seal
Face, there are four stress points between magnetic seal stationary ring (7) end face and moving sealing ring (2) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910564513.8A CN110285217A (en) | 2019-06-27 | 2019-06-27 | A kind of four magnetic pole magnetic sealing devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910564513.8A CN110285217A (en) | 2019-06-27 | 2019-06-27 | A kind of four magnetic pole magnetic sealing devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110285217A true CN110285217A (en) | 2019-09-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910564513.8A Pending CN110285217A (en) | 2019-06-27 | 2019-06-27 | A kind of four magnetic pole magnetic sealing devices |
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| CN (1) | CN110285217A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5730447A (en) * | 1995-10-26 | 1998-03-24 | Dawson; Stephen M. | Self-aligning magnetic rotary seal |
| CN2580194Y (en) * | 2002-12-03 | 2003-10-15 | 杨若峰 | Centrafugal and mechanical double function bearing capable of internal and external placing |
| CN101135380A (en) * | 2006-08-30 | 2008-03-05 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Magnetic force sealing device and process for manufacturing magnetic stationary ring coating |
| CN105351528A (en) * | 2015-11-06 | 2016-02-24 | 北京交通大学 | Magnetic liquid magnetic sealing device suitable for high rotating speed condition |
| CN205315713U (en) * | 2015-12-08 | 2016-06-15 | 盐城市沿海固体废料处置有限公司 | Rotary kiln hood's high -efficient sealing device |
| WO2016115350A1 (en) * | 2015-01-14 | 2016-07-21 | Isomag Corporation | Magnetic rotary seal with improved drain back |
| US20160298768A1 (en) * | 2013-12-02 | 2016-10-13 | Burckhardt Compressin AG | Sealing assembly and method for the operation thereof |
| CN206329739U (en) * | 2016-12-15 | 2017-07-14 | 江苏大学 | A kind of seal clearance control system of non-contact mechanical seal |
| CN206582331U (en) * | 2017-03-02 | 2017-10-24 | 天津绿业石化环保装备有限公司 | A kind of permanent-magnet sealing structure for twin helical rotors pump |
| CN207961526U (en) * | 2018-03-20 | 2018-10-12 | 威海博锐化工机械有限公司 | A kind of magnetic sealing device |
| CN207961527U (en) * | 2018-03-10 | 2018-10-12 | 丹东诚海机械制造有限公司 | A kind of oil sealing sealing device |
| US20190072184A1 (en) * | 2017-09-04 | 2019-03-07 | Aes Engineering Ltd. | Bearing protector |
-
2019
- 2019-06-27 CN CN201910564513.8A patent/CN110285217A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5730447A (en) * | 1995-10-26 | 1998-03-24 | Dawson; Stephen M. | Self-aligning magnetic rotary seal |
| CN2580194Y (en) * | 2002-12-03 | 2003-10-15 | 杨若峰 | Centrafugal and mechanical double function bearing capable of internal and external placing |
| CN101135380A (en) * | 2006-08-30 | 2008-03-05 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Magnetic force sealing device and process for manufacturing magnetic stationary ring coating |
| US20160298768A1 (en) * | 2013-12-02 | 2016-10-13 | Burckhardt Compressin AG | Sealing assembly and method for the operation thereof |
| WO2016115350A1 (en) * | 2015-01-14 | 2016-07-21 | Isomag Corporation | Magnetic rotary seal with improved drain back |
| CN105351528A (en) * | 2015-11-06 | 2016-02-24 | 北京交通大学 | Magnetic liquid magnetic sealing device suitable for high rotating speed condition |
| CN205315713U (en) * | 2015-12-08 | 2016-06-15 | 盐城市沿海固体废料处置有限公司 | Rotary kiln hood's high -efficient sealing device |
| CN206329739U (en) * | 2016-12-15 | 2017-07-14 | 江苏大学 | A kind of seal clearance control system of non-contact mechanical seal |
| CN206582331U (en) * | 2017-03-02 | 2017-10-24 | 天津绿业石化环保装备有限公司 | A kind of permanent-magnet sealing structure for twin helical rotors pump |
| US20190072184A1 (en) * | 2017-09-04 | 2019-03-07 | Aes Engineering Ltd. | Bearing protector |
| CN207961527U (en) * | 2018-03-10 | 2018-10-12 | 丹东诚海机械制造有限公司 | A kind of oil sealing sealing device |
| CN207961526U (en) * | 2018-03-20 | 2018-10-12 | 威海博锐化工机械有限公司 | A kind of magnetic sealing device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190927 |