CN102425672B - Split magnetic liquid sealing device - Google Patents
Split magnetic liquid sealing device Download PDFInfo
- Publication number
- CN102425672B CN102425672B CN201110240451.9A CN201110240451A CN102425672B CN 102425672 B CN102425672 B CN 102425672B CN 201110240451 A CN201110240451 A CN 201110240451A CN 102425672 B CN102425672 B CN 102425672B
- Authority
- CN
- China
- Prior art keywords
- screw
- pole shoe
- black box
- magnetic liquid
- axle
- 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
Images
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a split magnetic liquid sealing device, which belongs to the technical field of sealing of mechanical engineering and is used for solving the problem of rotary seal of an equipment shaft and a motor shaft when equipment and a motor cannot be moved after a large-power motor shaft and driven equipment are connected and arranged. In the device, an upper half outer sleeve (7-1) and a lower half outer sleeve (7-2) are buckled on a shaft, and are connected into an outer sleeve through a screw and a nut; N/2 cylindrical permanent magnets (1) are bonded between an upper half first pole shoe (2-1) and an upper half second pole shoe (15-1), and a magnetic liquid is injected to constitute an upper half sealing assembly; another N/2 cylindrical permanent magnets (1) are bonded between a lower half first pole shoe (2-2) and a lower half second pole shoe (15-2) to constitute a lower half sealing assembly; the upper half sealing assembly and the lower half sealing assembly are connected into a sealing assembly through a screw and a nut; a first O-shaped sealing ring (3) is arranged on the sealing assembly; and the sealing assembly is pushed into the outer sleeve along the shaft, and is fixed by using an upper half end cover and a lower half end cover. The seal is suitable for rotary movement seal for shafts.
Description
Technical field
The invention belongs to mechanical engineering technical field of sealing technology, be specially adapted to rotate axle head connection device and install and remove in inconvenient situation, and the sealing that rotates of axle.
Background technique
Magnetic fluid sealing has the characteristic of a lot of uniquenesses compared with other sealings, obtain in practice extensive use, generally, magnetic fluid sealing is all integral installation, but in commercial Application process, often run into the situation that motor shaft and connected device power are larger, the axle head of equipment axle head or motor need to carry out cooling, the motor feels hot in control, this just requires motor to seal, prevent the refrigerant leaks of motor internal, conventional seals device is overall structure, in the process of fitting tight device, need the first axle head at equipment to pack seal arrangement into, and then equipment axle head and motor shaft are linked together.Like this, whole assembly process can consume the plenty of time, has a strong impact on production process, and in especially a lot of situations, the axle head of equipment and the axle of motor connect, and at this moment equipment and motor all can not move, and can not use magnetic fluid sealing.
Summary of the invention
To be large power, electrically arbor connect with the equipment driving problem to be solved by this invention, install, equipment and motor be when all can not move, the rotary seal problem of equipment axis and motor shaft.
Technological scheme of the present invention:
A kind of Split magnetic liquid sealing device, this device comprises N cylindrical magnet iron, first first pole shoe, second first pole shoe, the one O RunddichtringO, the 2nd O RunddichtringO, first overcoat, second overcoat, first end cap, second end cap, first second pole shoe, second second pole shoe, the first screw, the second screw, the 3rd screw, the 4th screw, the 5th screw, the 6th screw, the 7th screw, the 8th screw, the 9th screw, the tenth screw, the 11 screw, the 12 screw, the 13 screw, the 14 screw, the 15 screw, nut and magnetic liquid.
First overcoat and second overcoat are buckled on axle, with the 3rd screw, the 4th screw, the 5th screw, the 13 screw, the 14 screw, the 15 screw and nut, connect into overcoat.
The one side that first first pole shoe is established boss is bonding with N/2 cylindrical magnet iron one side, the one side that the another side of N/2 cylindrical magnet iron and first the second pole shoe are established boss is bonding, between first first pole shoe and first the second pole shoe, inject magnetic liquid, form first black box, first black box is buckled on axle;
The one side that second first pole shoe is established boss is bonding with other N/2 cylindrical magnet iron one side, and the one side that the another side of N/2 cylindrical magnet iron and second the second pole shoe are established boss is in addition bonding, forms second black box, and second black box is buckled on axle.
First black box and second black box are alignd on axle, with the first screw, the second screw, the 7th screw, the 8th screw, the 9th screw, the tenth screw, the 11 screw, the 12 screw and nut, connect into black box.
The one O RunddichtringO is cut, be enclosed within on axle and stick together, be arranged in first first pole shoe and second the first pole shoe groove of black box.
Black box is pushed in overcoat along axle, the 2nd O RunddichtringO is cut, be enclosed within on axle and stick together, be arranged in first end cap and second end cap groove, with screw, first end cap and second end cap is fixing on the coat.
The inner diameter d 1 of described overcoat is than the little 1～2mm of inner diameter d 2 of first first pole shoe, second the first pole shoe utmost point tooth tooth top.
The base load liquid of described magnetic liquid is for fluoridizing carbon back or ester group, and the magnetization intensity is higher than 300 Gausses.
The number N=2 π R/d of described cylindrical magnet iron, R is the radius of cylindrical magnet iron position, d is the diameter of cylindrical magnet iron.
The invention has the beneficial effects as follows: in the situation that not removing motor coupling device and connecting with motor is original, just can carry out to the axle head of motor shaft or coupling device the installation and maintenance of seal arrangement, both saved the installation and maintenance time, and can make again the application being sealed in this kind of situation of magnetic liquid become possibility.
Accompanying drawing explanation
Fig. 1 Split magnetic liquid sealing device plan view.
The rear view of Fig. 2 Split magnetic liquid sealing device.
The A-A view of Fig. 3 Fig. 1.
The a enlarged view of Fig. 4 Fig. 1.
The b enlarged view of Fig. 5 Fig. 3.
The B-B view of Fig. 6 Fig. 1.
The C-C sectional drawing of Fig. 7 Fig. 3.
First first pole shoe of Fig. 8 and second the first pole shoe plan view.
The D-D sectional drawing of Fig. 9 Fig. 8.
The E-E sectional drawing of Figure 10 Fig. 8.
In figure: cylindrical magnet iron 1, first first pole shoe 2-1, second first pole shoe 2-2, the one O RunddichtringO 3, the 2nd O RunddichtringO 12, first overcoat 7-1, second overcoat 7-2, first end cap 11-1, second end cap 11-2, first second pole shoe 15-1, second second pole shoe 15-2, the first screw 4, the second screw 5, the 3rd screw 6, the 4th screw 8, the 5th screw 9, the 6th screw 10, the 7th screw 13, the 8th screw 14, the 9th screw 16, the tenth screw 17, the 11 screw 18, the 12 screw 19, the 13 screw 20, the 14 screw 21, the 15 screw 22.
Embodiment
Contrast accompanying drawing is described in further detail the specific embodiment of the present invention:
A kind of Split magnetic liquid sealing device, as Fig. 1, 2, 3, 4, shown in 6, this device comprises N cylindrical magnet iron 1, first first pole shoe 2-1, second first pole shoe 2-2, the one O RunddichtringO 3, the 2nd O RunddichtringO 12, first overcoat 7-1, second overcoat 7-2, first end cap 11-1, second end cap 11-2, first second pole shoe 15-1, second second pole shoe 15-2, the first screw 4, the second screw 5, the 3rd screw 6, the 4th screw 8, the 5th screw 9, the 6th screw 10, the 7th screw 13, the 8th screw 14, the 9th screw 16, the tenth screw 17, the 11 screw 18, the 12 screw 19, the 13 screw 20, the 14 screw 21, the 15 screw 22, nut and magnetic liquid.
First overcoat 7-1 and second overcoat 7-2 are buckled on axle, with the 3rd screw 6, the 4th screw 8, the 5th screw the 9, the 13 screw the 20, the 14 screw the 21, the 15 screw 22 and nut, connect into overcoat, as shown in Fig. 1,2,4.
The one side that first first pole shoe 2-1 establishes boss is bonding with N/2 cylindrical magnet iron 1 one side, it is bonding that the another side of N/2 cylindrical magnet iron 1 and first second pole shoe 15-1 establish the one side of boss, as shown in Figure 3, between first the first pole shoe 2-1 and first second pole shoe 15-1, inject magnetic liquid, form first black box, first black box is buckled on axle;
The one side that second first pole shoe 2-2 establishes boss is bonding with other N/2 cylindrical magnet iron 1 one side, it is bonding that the another side of N/2 cylindrical magnet iron 1 and second second pole shoe 15-2 establish the one side of boss in addition, as shown in Fig. 6,9,10, form second black box, second black box is buckled on axle.
First black box and second black box are alignd on axle, with the first screw 4, the second screw 5, the 7th screw 13, the 8th screw 14, the 9th screw 16, the tenth screw the 17, the 11 screw the 18, the 12 screw 19 and nut, connect into black box, as shown in Fig. 3,9,10.
The one O RunddichtringO 3 is cut, be enclosed within on axle and stick together, be arranged in first first pole shoe 2-1 and second first pole shoe 2-2 groove of black box.
Black box is pushed in overcoat along axle, the 2nd O RunddichtringO 12 is cut, be enclosed within on axle and stick together, be arranged in first end cap 11-1 and second end cap 11-2 groove, with screw 10, first end cap 11-1 and second end cap 11-2 is fixing on the coat, as shown in Fig. 3,6.
The inner diameter d 1 of described overcoat is than the little 1～2mm of inner diameter d 2 of first first pole shoe 2-1, second first pole shoe 2-2 utmost point tooth tooth top, as shown in Figure 5.
Sealing while using fluorine Lyons cooling to equipment, adopts the base load liquid of magnetic liquid for fluoridizing carbon back, and the magnetization intensity is higher than 300 Gausses, and ester group magnetic liquid is used in general vacuum seal, and the magnetization intensity is higher than 300 Gausses.
The number N=2 π R/d of described cylindrical magnet iron 1, R is the radius of cylindrical magnet iron 1 position, d is the diameter of cylindrical magnet iron 1, as shown in Figure 7.
All " O " type rubber ring material is all fluorine rubber; Permanent magnet 1 the selection of material is rubidium iron canopy; Upper and lower half first and second pole shoe material is 3Cr13.
Use-case: magnetic liquid research institute of Beijing Jiaotong University rotary seal Laboratory Furniture, power of motor is large, motor internal freezing mixture has leakage phenomenon, motor shaft is larger, motor shaft is connected with the equipment axis that will test, dismounting is inconvenient, adopts the present invention, has solved motor internal refrigerant leaks problem.
Claims (1)
1. a Split magnetic liquid sealing device, is characterized in that:
This device comprises N cylindrical magnet iron (1), first first pole shoe (2-1), second first pole shoe (2-2), the one O RunddichtringO (3), the 2nd O RunddichtringO (12), first overcoat (7-1), second overcoat (7-2), first end cap (11-1), second end cap (11-2), first second pole shoe (15-1), second second pole shoe (15-2), the first screw (4), the second screw (5), the 3rd screw (6), the 4th screw (8), the 5th screw (9), the 6th screw (10), the 7th screw (13), the 8th screw (14), the 9th screw (16), the tenth screw (17), the 11 screw (18), the 12 screw (19), the 13 screw (20), the 14 screw (21), the 15 screw (22), nut and magnetic liquid,
First overcoat (7-1) and second overcoat (7-2) are buckled on axle, with the 3rd screw (6), the 4th screw (8), the 5th screw (9), the 13 screw (20), the 14 screw (21), the 15 screw (22) and nut, connect into overcoat;
The one side that first first pole shoe (2-1) is established boss is bonding with N/2 cylindrical magnet iron (1) one side, the one side that the another side of N/2 cylindrical magnet iron (1) and first the second pole shoe (15-1) are established boss is bonding, between first first pole shoe (2-1) and first the second pole shoe (15-1), inject magnetic liquid, form first black box, first black box is buckled on axle;
The one side that second first pole shoe (2-2) is established boss is bonding with other N/2 cylindrical magnet iron (1) one side, the one side that the another side of N/2 cylindrical magnet iron (1) and second the second pole shoe (15-2) are established boss is in addition bonding, form second black box, second black box is buckled on axle;
First black box and second black box are alignd on axle, with the first screw (4), the second screw (5), the 7th screw (13), the 8th screw (14), the 9th screw (16), the tenth screw (17), the 11 screw (18), the 12 screw (19) and nut, connect into black box;
The one O RunddichtringO (3) is cut, be enclosed within on axle and stick together, be arranged in first first pole shoe (2-1) and second the first pole shoe (2-2) groove of black box;
Black box is pushed in overcoat along axle, the 2nd O RunddichtringO (12) is cut, be enclosed within on axle and stick together, be arranged in first end cap (11-1) and second end cap (11-2) groove, with the 6th screw (10), first end cap (11-1) and second end cap (11-2) is fixing on the coat.
2. according to a kind of Split magnetic liquid sealing device described in claim 1, it is characterized in that:
The inner diameter d 1 of described overcoat is than the little 1～2mm of inner diameter d 2 of first first pole shoe (2-1), second the first pole shoe (2-2) utmost point tooth tooth top.
3. according to a kind of Split magnetic liquid sealing device described in claim 1, it is characterized in that:
The base load liquid of described magnetic liquid is for fluoridizing carbon back or ester group, and the magnetization intensity is higher than 300 Gausses.
4. according to a kind of Split magnetic liquid sealing device described in claim 1, it is characterized in that:
The number N=2 π R/d of described cylindrical magnet iron (1), R is the radius of cylindrical magnet iron (1) position, d is the diameter of cylindrical magnet iron (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240451.9A CN102425672B (en) | 2011-08-19 | 2011-08-19 | Split magnetic liquid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240451.9A CN102425672B (en) | 2011-08-19 | 2011-08-19 | Split magnetic liquid sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102425672A CN102425672A (en) | 2012-04-25 |
| CN102425672B true CN102425672B (en) | 2014-04-09 |
Family
ID=45959685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110240451.9A Expired - Fee Related CN102425672B (en) | 2011-08-19 | 2011-08-19 | Split magnetic liquid sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102425672B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2990486A1 (en) * | 2012-05-11 | 2013-11-15 | Peugeot Citroen Automobiles Sa | Transmission element i.e. connecting rod, for car's heat engine, has rotation bearing including annular magnets and sealing units that prevent oil from leaving space, where magnets and units are in form of half-rings carried by half bearing |
| CN103133699B (en) * | 2013-02-07 | 2015-04-15 | 北京交通大学 | Method for improving sealing pressure endurance capability of large-gap sectioning type magnetic liquid |
| CN103133698B (en) * | 2013-02-07 | 2015-04-15 | 北京交通大学 | Method of changing sealing clearances of split type magnetic liquid |
| CN104089022B (en) * | 2014-07-04 | 2015-07-22 | 北京交通大学 | Modified split type magnetic liquid sealing device |
| CN105972218B (en) * | 2016-05-25 | 2018-06-08 | 广西科技大学 | A kind of end-surface type magnetic fluid seal device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1201602A1 (en) * | 1984-06-15 | 1985-12-30 | Предприятие П/Я В-2190 | Magnetofluid seal |
| JP2001050400A (en) * | 1999-08-03 | 2001-02-23 | Nok Corp | Magnetic fluid sealing device |
| US6672592B1 (en) * | 1999-07-09 | 2004-01-06 | Nok Corporation | Magnetic fluid seal |
| CN2758510Y (en) * | 2004-11-16 | 2006-02-15 | 吴雳鸣 | Sealing device of gap between moving and calming of bimagnetic pole and bi servo drive |
| CN101493147A (en) * | 2009-02-24 | 2009-07-29 | 中国船舶重工集团公司第七一二研究所 | Rotating seal |
| CN201312191Y (en) * | 2008-12-08 | 2009-09-16 | 北京交通大学 | Engraving, milling and grinding electric main shaft sealing structure |
| CN101776146A (en) * | 2010-03-02 | 2010-07-14 | 北京交通大学 | Large-diameter large-gap magnetic liquid static seal structure |
-
2011
- 2011-08-19 CN CN201110240451.9A patent/CN102425672B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1201602A1 (en) * | 1984-06-15 | 1985-12-30 | Предприятие П/Я В-2190 | Magnetofluid seal |
| US6672592B1 (en) * | 1999-07-09 | 2004-01-06 | Nok Corporation | Magnetic fluid seal |
| JP2001050400A (en) * | 1999-08-03 | 2001-02-23 | Nok Corp | Magnetic fluid sealing device |
| CN2758510Y (en) * | 2004-11-16 | 2006-02-15 | 吴雳鸣 | Sealing device of gap between moving and calming of bimagnetic pole and bi servo drive |
| CN201312191Y (en) * | 2008-12-08 | 2009-09-16 | 北京交通大学 | Engraving, milling and grinding electric main shaft sealing structure |
| CN101493147A (en) * | 2009-02-24 | 2009-07-29 | 中国船舶重工集团公司第七一二研究所 | Rotating seal |
| CN101776146A (en) * | 2010-03-02 | 2010-07-14 | 北京交通大学 | Large-diameter large-gap magnetic liquid static seal structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102425672A (en) | 2012-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102425672B (en) | Split magnetic liquid sealing device | |
| CN203926794U (en) | A kind of improved Split magnetic liquid sealing device | |
| CN103343822B (en) | Be applicable to the magnetic liquid rotating sealing device of space station | |
| CN2479295Y (en) | Magnetic fluid sealing device | |
| CN201982301U (en) | High-temperature-resistant magnetic driver | |
| CN204137316U (en) | A kind of underwater propeller | |
| CN204082682U (en) | A kind of heating machanism of magnetic drive pump | |
| CN201135873Y (en) | Magnetic stirring sealing device | |
| CN104242599A (en) | Magnetic coupler | |
| CN201159196Y (en) | DC brushless pump | |
| CN202363742U (en) | Rotary sealing device | |
| CN105202210A (en) | Magnetically-driven valve device | |
| CN201795050U (en) | Magnetic fluid seal structure for thrust bearing of mixed-flow turbine | |
| CN204093384U (en) | A kind of test-type magnetic force de-airing mixer | |
| CN203482004U (en) | Magnetic coupling driving device | |
| CN202431536U (en) | Double support bearing chemical flow magnetic drive pump | |
| CN204082567U (en) | A kind of energy-efficient packaging type magnetic pump | |
| CN203442373U (en) | Pipeline connector for air conditioner | |
| CN103090082B (en) | Seal valve switch electric machine | |
| CN203502066U (en) | Magnetic transmission for flow measurement converters | |
| CN207382129U (en) | A kind of AC synchronous quantifies mechanical electronic hydraulic coupler | |
| CN201392290Y (en) | Magnetic driving sealing device of turnover agitating filter press | |
| CN103585914A (en) | Permanent magnet coupling sealing motor stirring device | |
| CN2257632Y (en) | Magnetic coupling electric motor | |
| CN204212994U (en) | Magnetic coupling pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20200819 |