CN106090239A - Magnetic source is the magnetic fluid seal device of electric magnet - Google Patents
Magnetic source is the magnetic fluid seal device of electric magnet Download PDFInfo
- Publication number
- CN106090239A CN106090239A CN201610711852.0A CN201610711852A CN106090239A CN 106090239 A CN106090239 A CN 106090239A CN 201610711852 A CN201610711852 A CN 201610711852A CN 106090239 A CN106090239 A CN 106090239A
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- CN
- China
- Prior art keywords
- magnetic
- pole shoe
- electric magnet
- fluid seal
- seal device
- 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.)
- Pending
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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
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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
Magnetic source is the magnetic fluid seal device of electric magnet, belongs to sealing field of mechanical engineering, is particularly well-suited to magnetic fluid sealing.This magnetic fluid seal device is to test annular seal space internal gas pressure value, regulating magnet current value with pressure transducer, controls magnetic field intensity, and then reaches device sealing effectiveness.Offer tank in pole shoe, use the mode of water-cooled, reduce the caloric value of electric magnet self and magnetic liquid and bearing friction.Sealing fluid body can be adjusted according to pressure medium, solves existing magnetic liquid device in the most easily detachable feature.
Description
Technical field
The invention belongs to sealing field of mechanical engineering, be particularly well-suited to the diameter of axle relatively big, often the occasion of dismounting.
Technical background
Magnetic fluid sealing technology is a kind of novel practical technique, due to zero leakage, without abrasion, life-span first-class advantage by
Gradually used by increasing industry.Existing magnetic fluid seal device typical structure such as patent publication No. is
Described in the patent application of CN102518811A and publication number CN202091519U.Domestic existing magnetic liquid rotary apparatus magnetic source
All use permanent magnet, be difficult to installation and removal, and about the most not relevant report of the magnetic fluid seal device that magnetic source is electric magnet
Road is reported.In fields such as space flight and aviation, magnetic liquid device often dismantles inspection, therefore needs magnetic liquid device is entered one
The research of step.The advantage that the present invention makes full use of electric magnet, it is possible to be used for often dismantling occasion by magnetic fluid sealing equipment.
Summary of the invention
The technical issues that need to address of the present invention are: existing magnetic liquid rotary apparatus magnetic source all uses permanent magnet, should
Bigger restriction is had, that therefore a kind of frequent dismounting occasion is provided and that transformation can the be carried out magnetic that magnetic source is electric magnet by scope
Property liquid sealing device.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of magnetic source is the magnetic fluid seal device of electric magnet, and the particular content that this device uses is as follows: in annular seal space
Put pressure transducer, when annular seal space pressure changes, by the data of pressure transducer, the size of regulating magnet electric current.When
During electric magnet energising, the magnetic liquid of pole shoe is just bound in here, forms " 0 " shape circle at tooth top position, along with electric current
Increasing, the magnetic enhancement of electric magnet, the magnetic particle of pole shoe absorption increases, the expanded range of " 0 " shape circle, and sealing is strengthened.With
Time, pole shoe increases Water-cooling circulating device, reduces the temperature of pole shoe.
Beneficial effects of the present invention:
Magnetic fluid seal device magnetic source is electric magnet, it is simple to installation and removal, applies the most extensive.Pass through adjusting means
The size of electric current, controls magnetic fluid sealing strong and weak, it is possible to work under the occasion of different pressures.Pole shoe adds Water-cooling circulating dress
Put, reduce the caloric value of electric magnet self and magnetic liquid and bearing friction, increase magnetic fluid seal device service life.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of invention.
Specific embodiments
With accompanying drawing 1, for detailed description of the invention, the invention will be further described:
Magnetic source is the magnetic fluid seal device of electric magnet, such as Fig. 1, constitutes this device and includes: pressure transducer (1), height
Pressure chamber (2), bearing (3), cross recessed countersunk head sscrew (4), bearing (5), shelves ring (6), left outlet (7), sealing ring (8), electromagnetism
Ferrum (9), right outlet (10), cross recessed countersunk head sscrew (11), end cap (12), shelves ring (13), right pole shoe (14), right water inlet
(15), sealing ring (16), left water inlet (17), left pole shoe (18), sealing ring (19), shell (20), rotating shaft (21)；
The connection of this device each several part:
Described sealing ring (8) is arranged in the seal groove on left pole shoe (18) cylindrical, forms the left pole shoe of band sealing ring,
Described sealing ring (16) is arranged in the seal groove on right pole shoe (14) cylindrical, forms the right pole shoe of band sealing ring；
The left side of described electric magnet (9) is arranged on the right side of the left pole shoe of band sealing ring (18), the right pole of band sealing ring
The left side of boots (14) is arranged on the right side of electric magnet, and blend compounds bonds, and is loaded by bearing (5) in rotating shaft (21), logical
The shaft shoulder crossing rotating shaft (21) positions, and by shelves ring (6), electric magnet left and right pole shoe entirety, shelves ring (13), is inserted in rotating shaft successively
(21), in, in anabolic process, after electric magnet (9) is installed, in the endoporus of electric magnet, magnetic liquid is injected；
Described bearing (3) utilizes shaft shoulder location to load in rotating shaft (21), rotating shaft (21) and related part thereof is loaded
In shell (20), end cap (12) is connected with shell (20) by cross recessed countersunk head sscrew (11), forms magnetic fluid sealing group
Part, cross recessed countersunk head sscrew (11) is circumferentially evenly arranged 4；By cross recessed countersunk head sscrew (4) by high pressure chest (2) and magnetic
Liquid seal assembly is attached, and cross recessed countersunk head sscrew (4) is circumferentially evenly arranged 4；
High pressure chest (2) built in pressure sensor (1)；
The lead wire outlet of electric magnet (9) by the external electric supply installation that is rotatably connected, can direct current, can exchange；
Cooling water enters feed pathway by water pump from the left water inlet (17) of rotary joint assembly, right water inlet (15),
By circulating, take away left pole shoe (18), the heat of right pole shoe (14) place magnetic liquid generation, thus realize the cold of device
But；
Left pole shoe (18), right pole shoe (14), rotating shaft (21) select the material that magnetic property is good, such as electrical pure iron；
The kind of magnetic liquid is according to the magnetic liquid of the different choice difference base fluid sealing gas.
Claims (5)
1. magnetic source is the magnetic fluid seal device of electric magnet, and this device is made up of following:
Pressure transducer (1), high pressure chest (2), bearing (3), cross recessed countersunk head sscrew (4), bearing (5), shelves ring (6), left water outlet
Mouthful (7), sealing ring (8), electric magnet (9), right outlet (10), cross recessed countersunk head sscrew (11), end cap (12), shelves ring (13),
Right pole shoe (14), right water inlet (15), sealing ring (16), left water inlet (17), left pole shoe (18), sealing ring (19), shell
(20), rotating shaft (21).
A kind of magnetic source the most according to claim 1 is the magnetic fluid seal device of electric magnet, it is characterised in that described electricity
The two ends of Magnet (9) carry out gluing, rotating shaft (21) and left pole shoe (18), right pole shoe respectively with left pole shoe (18), right pole shoe (14)
(14) the gap filling magnetic liquid between.
A kind of magnetic source the most according to claim 1 is the magnetic fluid seal device of electric magnet, it is characterised in that a described left side
Pole shoe (18), right pole shoe (14) are machined with circulating water chennel, for the cooling of magnetic liquid.
A kind of magnetic source the most according to claim 1 is the magnetic fluid seal device of electric magnet, it is characterised in that described electricity
Magnet (9) external electric supply installation, to provide electric magnet a range of electric current.
A kind of magnetic source the most according to claim 1 is the magnetic fluid seal device of electric magnet, it is characterised in that described height
Pressure chamber (2) built in pressure sensor (1), for reading the pressure of annular seal space, regulating magnet size of current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610711852.0A CN106090239A (en) | 2016-08-23 | 2016-08-23 | Magnetic source is the magnetic fluid seal device of electric magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610711852.0A CN106090239A (en) | 2016-08-23 | 2016-08-23 | Magnetic source is the magnetic fluid seal device of electric magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106090239A true CN106090239A (en) | 2016-11-09 |
Family
ID=57224753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610711852.0A Pending CN106090239A (en) | 2016-08-23 | 2016-08-23 | Magnetic source is the magnetic fluid seal device of electric magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106090239A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112974A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Magnetic liquid sealing device |
| CN112178200A (en) * | 2020-09-27 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device |
| CN112178205A (en) * | 2020-10-28 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device and motor with same |
| CN112500959A (en) * | 2020-12-07 | 2021-03-16 | 九江市耐得封缸酒业有限公司 | Tea and glutinous rice mixed fermentation equipment and method |
| CN112728105A (en) * | 2020-12-31 | 2021-04-30 | 清华大学 | Magnetic liquid sealing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599369A (en) * | 1982-07-08 | 1984-01-18 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic fluid sealing mechanism |
| JPS60222668A (en) * | 1984-04-20 | 1985-11-07 | Nok Corp | Magnetic fluid seal device |
| US6247701B1 (en) * | 1997-12-02 | 2001-06-19 | Rigaku Corporation | Magnet proof magnetic fluid sealing device |
| CN101737500B (en) * | 2010-01-27 | 2011-06-22 | 北京交通大学 | Method for improving sealing life and effect of water nozzle type magnetic liquid sealing device |
| CN103711912A (en) * | 2014-01-09 | 2014-04-09 | 中国石油大学(华东) | Closed-loop control type magnetic levitation fluid dynamic seal device |
| CN103925371B (en) * | 2014-04-29 | 2015-07-22 | 北京交通大学 | Peltier cooling type magnetic liquid sealing device |
| CN104534100B (en) * | 2015-01-08 | 2015-10-28 | 北京交通大学 | Improve high linear speed and the new method in stationary magnetic hydraulic seal life-span |
| CN204828678U (en) * | 2015-06-09 | 2015-12-02 | 北京交通大学 | Magnetic fluid sealing device of multilayer heat dissipation web cooling slot type |
-
2016
- 2016-08-23 CN CN201610711852.0A patent/CN106090239A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599369A (en) * | 1982-07-08 | 1984-01-18 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic fluid sealing mechanism |
| JPS60222668A (en) * | 1984-04-20 | 1985-11-07 | Nok Corp | Magnetic fluid seal device |
| US6247701B1 (en) * | 1997-12-02 | 2001-06-19 | Rigaku Corporation | Magnet proof magnetic fluid sealing device |
| CN101737500B (en) * | 2010-01-27 | 2011-06-22 | 北京交通大学 | Method for improving sealing life and effect of water nozzle type magnetic liquid sealing device |
| CN103711912A (en) * | 2014-01-09 | 2014-04-09 | 中国石油大学(华东) | Closed-loop control type magnetic levitation fluid dynamic seal device |
| CN103925371B (en) * | 2014-04-29 | 2015-07-22 | 北京交通大学 | Peltier cooling type magnetic liquid sealing device |
| CN104534100B (en) * | 2015-01-08 | 2015-10-28 | 北京交通大学 | Improve high linear speed and the new method in stationary magnetic hydraulic seal life-span |
| CN204828678U (en) * | 2015-06-09 | 2015-12-02 | 北京交通大学 | Magnetic fluid sealing device of multilayer heat dissipation web cooling slot type |
Non-Patent Citations (1)
| Title |
|---|
| 邹继斌等: "磁性流体密封的实验研究", 《电气应用》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178200A (en) * | 2020-09-27 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device |
| CN112178205A (en) * | 2020-10-28 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device and motor with same |
| CN112112974A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Magnetic liquid sealing device |
| CN112500959A (en) * | 2020-12-07 | 2021-03-16 | 九江市耐得封缸酒业有限公司 | Tea and glutinous rice mixed fermentation equipment and method |
| CN112728105A (en) * | 2020-12-31 | 2021-04-30 | 清华大学 | Magnetic liquid sealing device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |