CN2447582Y - Magnetofluid seal driving device for vacuum equipment driving shaft - Google Patents
Magnetofluid seal driving device for vacuum equipment driving shaft Download PDFInfo
- Publication number
- CN2447582Y CN2447582Y CN 00225902 CN00225902U CN2447582Y CN 2447582 Y CN2447582 Y CN 2447582Y CN 00225902 CN00225902 CN 00225902 CN 00225902 U CN00225902 U CN 00225902U CN 2447582 Y CN2447582 Y CN 2447582Y
- Authority
- CN
- China
- Prior art keywords
- driving shaft
- flux sleeve
- concentrating flux
- pole shoe
- transmission shaft
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a magnetic fluid seal driving device for a driving shaft of a vacuum device, composed of a supporting shell body, a pole shoe, a permanent magnet, a lip ring, a gland and a driving shaft. The utility model is characterized in that the magnetic fluid seal driving device is formed by a magnetism conducting sleeve, a sealing space, and the driving shaft, wherein, the magnetism conducting sleeve is sheathed on the driving shaft, the sealing space arranged inside the supporting shell body is composed of the pole shoe, the permanent magnet, etc., and the driving shaft arranged inside the magnetism conducting sleeve is connected with an O-shaped sealing ring in a frictional mode. The utility model overcomes the problems of magnetic liquid flowing out and the magnetic pole damage brought by the dismounting and mounting of the driving shaft and the equipment maintenance of an existing device of the same kind, and solves the problem of the sealing of non-magnetism conducting shafts.
Description
The utility model relates to a kind of magnetofluid seal driving device for vacuum equipment driving shaft, belongs to the magnetic fluid sealing member class in the sealing component.
The sealing of transmission shaft is one of key technology of the normal operation of shaft drive vacuum equipment.Owing to pass through more intrinsic major defects of rubber seal of usefulness usually, thereby progressively become the main trend of vacuum equipment transmission shaft sealing with contactless magnet fluid sealing.But, present common device for sealing magnetic fluid, its structure is a support housing, forms core assembly by pole shoe and permanent magnet, is made of between seal area filling magnetic liquid in the utmost point tooth of pole shoe and transmission shaft micro-gap lip circle, gland and transmission shaft.Become the direct boundary medium of magnetic fluid sealing structure owing to transmission shaft: thereby not only cause when installing along with magnetic liquid is taken in the contact and the displacement of transmission shaft out of; Therefore and very likely with the damage of damaging of the utmost point tooth on the pole shoe, cause whole Sealing to be scrapped; Simultaneously, existing this device for sealing magnetic fluid when carrying out device maintenance, extremely bothers during the dismounting device for sealing magnetic fluid, must carry out some these related property maintenances that extremely do not need to it; This mainly also is due to the accidental injury that causes in unloading process; In addition, current some common device for sealing magnetic fluid also can't be suitable for the sealing of nonmagnetic axis body.
The purpose of the present utility model is intended to: a kind of magnet fluid sealing transmission device of new structure is provided, solves loading and unloading, the magnetic liquid in the maintenance process is taken problem and the utmost point tooth problem of damaging out of, can also be applicable to the sealing problem of non magnetic axle simultaneously.
The foregoing invention purpose is achieved through the following technical solutions:
This magnetofluid seal driving device for vacuum equipment driving shaft is made up of support housing (2), pole shoe (3), permanent magnet (4), lip circle (5), gland (6) and transmission shaft (11), it is characterized in that:
The outer peripheral surface that is being nested with a concentrating flux sleeve (1), this concentrating flux sleeve (1) on A, the described transmission shaft (11) is formed magnetic fluid dynamic seal (packing) interval with core assembly, lip circle (5), the gland (6) be located in the support housing (2); The transmission shaft (11) that string is placed in the concentrating flux sleeve (1) then is the tight friction coupled condition by the O RunddichtringO of being located between the two (10);
B, described core assembly are made up of pole shoe (3) and permanent magnet (4), described pole shoe (3) and permanent magnet (4) are in the form of a ring and staggered concentrating flux sleeve (1) outer ring that is stacked in, have utmost point mark of mouth groove (7) on the aperture surface of the pole shoe of pressing close to concentrating flux sleeve (1) (3), magnetic liquid (9) in filling in the micro-gap of utmost point tooth (8) and concentrating flux sleeve (1).
Described O RunddichtringO (10) is located in the locating slot on the concentrating flux sleeve (1).
Described O RunddichtringO (10) is located in the locating slot on the transmission shaft (11).
This magnetofluid seal driving device for vacuum equipment driving shaft according to above conceptual design, compare with the device for sealing magnetic fluid that has adopted at present, owing to adopt concentrating flux sleeve to make transmission shaft and magnetic seal assembly be in isolation, thereby can effectively ensure no matter be to install, dismounting is maintenance still, can not form owing to the contact of transmission shaft is moved and taken magnetic liquid out of or the utmost point tooth of damaging; Simultaneously, owing to adopted this concentrating flux sleeve structure, make nonmagnetic axis body use magnet fluid sealing to become possibility.
Accompanying drawing is the utility model structural representation.
Among the figure: 1. concentrating flux sleeve 2. support housings 3. pole shoes 4. permanent magnets 5. lip circles 6. glands 7. utmost point mark of mouth grooves 8. utmost point teeth 9. magnetic liquids 10.O RunddichtringO 11. transmission shafts.
Further describe the utility model below in conjunction with accompanying drawing, and provide embodiment.
This magnetofluid seal driving device for vacuum equipment driving shaft as shown in the figure, form by support housing (2), pole shoe (3), permanent magnet (4), lip circle (5) gland (6) and transmission shaft (11), it is characterized in that being nested with on the described transmission shaft (11) concentrating flux sleeve (1), outer peripheral surface of this concentrating flux sleeve (1) and the core assembly of being located in the support housing (2), lip circle (5), gland (6) are formed magnetic fluid dynamic seal (packing) interval; And string is placed in the transmission shaft (11) in the concentrating flux sleeve (11), then is the tight friction coupled condition by the O RunddichtringO of being located between the two (10).
Described core assembly is made up of pole shoe (3) and magnet (4), described pole shoe (3) and permanent magnet (4) are in the form of a ring and staggered concentrating flux sleeve (1) outer ring that is stacked in, have utmost point mark of mouth groove (7) on the aperture surface of the pole shoe of pressing close to concentrating flux sleeve (1) (3), magnetic liquid (9) in filling in the micro-gap of utmost point tooth (8) and concentrating flux sleeve (11).
Described O RunddichtringO (10) both can be located in the locating slot on the concentrating flux sleeve (1), also can be located in the locating slot of transmission shaft (11).
Above-mentioned this device for sealing magnetic fluid, because the friction by O RunddichtringO (10) connects, thereby it is mobile together to make transmission shaft (11) drive concentrating flux sleeve (1) when rotating, and when the dismounting transmission shaft, can not relate to magnetic fluid sealing structure itself when perhaps transmission shaft being installed.
In above-mentioned this structure, the shape of cross section of its utmost point mark of mouth groove (7) can be a rectangle, circular arc, and triangle also can be trapezoidal.Its concentrating flux sleeve (1) should be made by permeability magnetic material.
Claims (3)
1, a kind of magnetofluid seal driving device for vacuum equipment driving shaft is made up of support housing (2), pole shoe (3), permanent magnet (4), lip circle (5), gland (6) and transmission shaft (11), it is characterized in that:
The outer peripheral surface that is being nested with a concentrating flux sleeve (1), this concentrating flux sleeve (1) on A, the described transmission shaft (11) is formed magnetic fluid dynamic seal (packing) interval with core assembly, lip circle (5), the gland (6) be located in the support housing (2); The transmission shaft (11) that string is placed in the concentrating flux sleeve (1) then is the tight friction coupled condition by the O RunddichtringO of being located between the two (10);
B, described magnet assembly are made up of pole shoe (3) and permanent magnet (4), described pole shoe (3) and permanent magnet (4) are in the form of a ring and staggered concentrating flux sleeve (1) outer ring that is stacked in, have utmost point mark of mouth groove (7) on the aperture surface of the pole shoe of pressing close to concentrating flux sleeve (1) (3), magnetic liquid (9) in filling in the micro-gap of utmost point tooth (8) and concentrating flux sleeve (1).
2, magnetofluid seal driving device for vacuum equipment driving shaft according to claim 1 is characterized in that described O RunddichtringO (10) is located in the locating slot on the concentrating flux sleeve (1).
3, magnetofluid seal driving device for vacuum equipment driving shaft according to claim 1 is characterized in that described O RunddichtringO (10) is located in the locating slot on the transmission shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225902 CN2447582Y (en) | 2000-11-03 | 2000-11-03 | Magnetofluid seal driving device for vacuum equipment driving shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225902 CN2447582Y (en) | 2000-11-03 | 2000-11-03 | Magnetofluid seal driving device for vacuum equipment driving shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2447582Y true CN2447582Y (en) | 2001-09-12 |
Family
ID=33589889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00225902 Expired - Fee Related CN2447582Y (en) | 2000-11-03 | 2000-11-03 | Magnetofluid seal driving device for vacuum equipment driving shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2447582Y (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458243C (en) * | 2007-04-29 | 2009-02-04 | 浙江工业大学 | Magnetofluid seal driving device for vacuum equipment driving shaft |
| CN101809345A (en) * | 2008-07-07 | 2010-08-18 | 伊格尔工业股份有限公司 | Seal device |
| CN102345626A (en) * | 2010-07-28 | 2012-02-08 | 龚祺允 | Magnetic fluid sealing device |
| CN102345628A (en) * | 2010-07-28 | 2012-02-08 | 龚祺允 | Sealing device |
| CN103234049A (en) * | 2013-04-12 | 2013-08-07 | 北京交通大学 | Method for improving sealing reliability and prolonging service life of split magnetic liquid sealing device |
| CN103511469A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | Friction-free sealing shaft with torque and angle measurement |
| CN103511470A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | Transmission shaft with torque and turn angle measurement functions for thermal vacuum environment |
| CN103512691A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | High-accuracy torque testing component in thermal vacuum environment |
| CN103527643A (en) * | 2013-09-18 | 2014-01-22 | 浙江工业大学 | Magnetic fluid sealing shaft with torque measurement |
| CN103527644A (en) * | 2013-09-18 | 2014-01-22 | 浙江工商大学 | Magnetic fluid sealing shaft capable of accurately measuring angles under hot vacuum condition |
| CN103939618A (en) * | 2014-04-29 | 2014-07-23 | 北京交通大学 | Magnetic liquid sealing device for porous pole shoes |
| CN104500744A (en) * | 2015-01-01 | 2015-04-08 | 深圳市盛世智能装备有限公司 | High-vacuum degree rotary sealing mechanism |
| CN105465374A (en) * | 2016-01-28 | 2016-04-06 | 自贡兆强环保科技股份有限公司 | Oil mist sealing structure of hydraulic generator |
| CN107956883A (en) * | 2017-12-14 | 2018-04-24 | 广西科技大学 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
| CN108799505A (en) * | 2018-09-03 | 2018-11-13 | 广西科技大学 | It is a kind of to tooth labyrinth type device for sealing magnetic fluid |
| WO2020150967A1 (en) * | 2019-01-24 | 2020-07-30 | 清华大学 | Magnetic liquid sealing device having function of preventing non-magnetic substance pollution |
| CN112392959A (en) * | 2020-11-11 | 2021-02-23 | 清华大学 | Combined magnetic liquid sealing device |
-
2000
- 2000-11-03 CN CN 00225902 patent/CN2447582Y/en not_active Expired - Fee Related
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458243C (en) * | 2007-04-29 | 2009-02-04 | 浙江工业大学 | Magnetofluid seal driving device for vacuum equipment driving shaft |
| CN101809345A (en) * | 2008-07-07 | 2010-08-18 | 伊格尔工业股份有限公司 | Seal device |
| CN102345626A (en) * | 2010-07-28 | 2012-02-08 | 龚祺允 | Magnetic fluid sealing device |
| CN102345628A (en) * | 2010-07-28 | 2012-02-08 | 龚祺允 | Sealing device |
| CN102345628B (en) * | 2010-07-28 | 2013-10-09 | 龚祺允 | Sealing device |
| CN102345626B (en) * | 2010-07-28 | 2013-10-09 | 龚祺允 | Magnetic fluid sealing device |
| CN103234049B (en) * | 2013-04-12 | 2015-10-28 | 北京交通大学 | Improve the sealing reliability of Split magnetic liquid sealing device and the method in life-span |
| CN103234049A (en) * | 2013-04-12 | 2013-08-07 | 北京交通大学 | Method for improving sealing reliability and prolonging service life of split magnetic liquid sealing device |
| CN103511469B (en) * | 2013-09-18 | 2015-12-30 | 浙江工业大学 | A kind of seal shaft without friction belt moment of torsion and angle measurement |
| CN103527643B (en) * | 2013-09-18 | 2016-01-27 | 浙江工业大学 | With the magnet fluid sealing axle of torque measurement |
| CN103527643A (en) * | 2013-09-18 | 2014-01-22 | 浙江工业大学 | Magnetic fluid sealing shaft with torque measurement |
| CN103527644A (en) * | 2013-09-18 | 2014-01-22 | 浙江工商大学 | Magnetic fluid sealing shaft capable of accurately measuring angles under hot vacuum condition |
| CN103512691A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | High-accuracy torque testing component in thermal vacuum environment |
| CN103512691B (en) * | 2013-09-18 | 2015-05-27 | 浙江工业大学 | High-accuracy torque testing component in thermal vacuum environment |
| CN103527644B (en) * | 2013-09-18 | 2015-10-28 | 浙江工商大学 | A kind of magnet fluid sealing axle of energy Measurement accuracy hot vacuum environment lower angle |
| CN103511470B (en) * | 2013-09-18 | 2015-10-28 | 浙江工业大学 | A kind of transmission shaft of hot vacuum environment band torque outer corner measurement |
| CN103511470A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | Transmission shaft with torque and turn angle measurement functions for thermal vacuum environment |
| CN103511469A (en) * | 2013-09-18 | 2014-01-15 | 浙江工业大学 | Friction-free sealing shaft with torque and angle measurement |
| CN103939618A (en) * | 2014-04-29 | 2014-07-23 | 北京交通大学 | Magnetic liquid sealing device for porous pole shoes |
| CN103939618B (en) * | 2014-04-29 | 2016-01-20 | 北京交通大学 | The magnetic fluid seal device of porous pole shoe |
| CN104500744A (en) * | 2015-01-01 | 2015-04-08 | 深圳市盛世智能装备有限公司 | High-vacuum degree rotary sealing mechanism |
| CN105465374A (en) * | 2016-01-28 | 2016-04-06 | 自贡兆强环保科技股份有限公司 | Oil mist sealing structure of hydraulic generator |
| CN107956883A (en) * | 2017-12-14 | 2018-04-24 | 广西科技大学 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
| CN108799505A (en) * | 2018-09-03 | 2018-11-13 | 广西科技大学 | It is a kind of to tooth labyrinth type device for sealing magnetic fluid |
| WO2020150967A1 (en) * | 2019-01-24 | 2020-07-30 | 清华大学 | Magnetic liquid sealing device having function of preventing non-magnetic substance pollution |
| CN112392959A (en) * | 2020-11-11 | 2021-02-23 | 清华大学 | Combined magnetic liquid sealing device |
| CN112392959B (en) * | 2020-11-11 | 2022-04-12 | 清华大学 | Combined magnetic liquid sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2447582Y (en) | Magnetofluid seal driving device for vacuum equipment driving shaft | |
| CN109595345B (en) | Magnetic liquid sealing device with function of preventing non-magnetic substance from pollution | |
| CN113090760B (en) | Magnetic liquid sealing device | |
| CN101539166B (en) | Magnetic suspension bearing | |
| CN112112971A (en) | Floating ring type magnetic liquid sealing device | |
| CN111457100A (en) | Axial and radial combined type magnetic liquid sealing structure | |
| CN2479295Y (en) | Magnetic fluid sealing device | |
| CN102249136A (en) | Gear-free tractor with magnetorheological fluid brake | |
| CN112963544B (en) | Magnetic liquid sealing device with porous medium material layer | |
| CN112253757A (en) | Double-source multi-tooth magnetic liquid sealing device | |
| CN206592521U (en) | A kind of magnetic liquid sealing structure for electric locomotive gear box | |
| CN201714985U (en) | Magnetorheological fluid sealing device of elevator magnetorheological fluid brake | |
| CN202301966U (en) | Dustproof sealing device of magnetic fluid | |
| CN202673710U (en) | Axially-positioned oilproof and dustproof fan with long service lifetime and motor structure | |
| CN211039684U (en) | Magnetic fluid sealing transmission device with vacuumizing channel | |
| CN101392837A (en) | Opposition U-shaped surface magnetic mechanical seal internal positioning magnetic mechanical seal | |
| CN203774938U (en) | Motor with thrust bearing | |
| CN201184300Y (en) | Shielding pump with axial permanent magnetism thrust disc | |
| CN201487054U (en) | Sliding bearing with principal axis suspended by magnetic liquids and centered | |
| CN2509386Y (en) | Magnetic liquid seal oil apparatus | |
| CN2474791Y (en) | Ball mill magnetofluid sealing device | |
| CN2363097Y (en) | Permanent miniature submerged pump | |
| CN114719022B (en) | Split shaft diameter combined type magnetic liquid sealing device | |
| CN205136016U (en) | A magnetic force seal structure for lobe pump drive end | |
| CN2474813Y (en) | Magnetic fully sealing zero gravity force oil seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHUZHOU WEIGE MHD CO., LTD. Free format text: FORMER NAME OR ADDRESS: LUO XIMEI |
|
| CP03 | Change of name, title or address |
Address after: 412007 Overseas Industrial Park, Hexi Road, Zhuzhou, Hunan, Taishan Patentee after: Zhuzhou Vic Ferrofluidics Co., Ltd. Address before: 412000 Hunan Zhuzhou Hetang District Zhuzhou Vic Ferrofluidics Co Ltd Patentee before: Luo Ximei |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |