CN102588607A - Magnetic fluid single-pole sealing device based on tooth space structure - Google Patents
Magnetic fluid single-pole sealing device based on tooth space structure Download PDFInfo
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- CN102588607A CN102588607A CN2012100986100A CN201210098610A CN102588607A CN 102588607 A CN102588607 A CN 102588607A CN 2012100986100 A CN2012100986100 A CN 2012100986100A CN 201210098610 A CN201210098610 A CN 201210098610A CN 102588607 A CN102588607 A CN 102588607A
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- magnetic
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- tooth space
- magnetic pole
- teeth groove
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Abstract
The invention provides a magnetic fluid single-pole sealing device based on a tooth space structure, which comprises a first magnetic pole, magnetic steel, a second magnetic pole and magnetic fluid. The first magnetic pole and the second magnetic pole are arranged on two sides of the magnetic steel, an upper tooth space is arranged on the second magnetic pole, a lower tooth space is disposed on the first magnetic pole, the upper tooth space and the lower tooth space are arranged in a staggered manner, a sealing gap is formed between the upper tooth space and the lower tooth space, the magnetic fluid is arranged between the upper tooth space and the lower tooth space, and a sealing area is encircled by the first magnetic pole, the magnetic steel, the second magnetic pole and the magnetic fluid. Owing to influences of the tooth space structure, change of a magnetic field at the sealing gap is violent, and distribution of the magnetic fluid in the sealing area can be affected; and simultaneously, magnetic fields at the tooth spaces also can be affected by magnetism of the magnetic fluid, and accordingly distribution of the magnetic fields nearby the tooth spaces is affected. The influences on the distribution of the magnetic fields are high according to calculation by the aid of a finite element method. By the aid of the tooth space structure of the magnetic poles, a sealing performance of the magnetic fluid sealing device can be effectively improved by 10% to 15%.
Description
Technical field
The present invention relates to a kind of magnetic fluid one pole seal arrangement, belong to the magnetic fluid seal device technical field based on the teeth groove structure.
Background technique
Magnetic fluid seal is the important application as the magnetic fluid of function type material.One pole magnetic fluid seal construction and device is all more, but one pole magnetic fluid seal ability is owing to receive the influence of many factors such as magnetic field, magnetic fluid characteristic, sealability relatively a little less than.Under the constant prerequisite of many factors such as magnetic field and magnetic fluid characteristic, improving one pole magnetic fluid seal ability is to expand the effective way that magnetic fluid is used in field of sealing technology.
Summary of the invention
The objective of the invention is in order to solve existing one pole magnetic fluid seal ability owing to receive the influence of many factors such as magnetic field, magnetic fluid characteristic; Sealability is more weak problem relatively, and then a kind of magnetic fluid one pole seal arrangement based on the teeth groove structure is provided.
The objective of the invention is to realize through following technological scheme:
A kind of magnetic fluid one pole seal arrangement based on the teeth groove structure; Comprise: first magnetic pole, magnet steel, second magnetic pole and magnetic fluid; The both sides of said magnet steel are first magnetic pole and second magnetic pole, and second magnetic pole is provided with teeth groove, and first magnetic pole is provided with down teeth groove; The said teeth groove of going up is crisscross arranged with following teeth groove; Form seal clearance between last teeth groove and the following teeth groove, magnetic fluid is arranged between teeth groove and the following teeth groove, and the zone that said first magnetic pole, magnet steel, second magnetic pole and magnetic fluid surround is a sealing area.
The invention has the beneficial effects as follows, utilize magnetic fluid under the effect in magnetic field, to have the characteristic of location, form magnetic field in the magnetic fluid seal zone.Under the effect in magnetic field, magnetic fluid forms seal ring at sealing area, thereby will be hedged off from the outer world by sealing area.Magnetic pole forms magnetic field, and magnetic field forms closure in magnet steel with in the seal clearance.Because the teeth groove effect on structure, the changes of magnetic field at seal clearance place is bigger, and therefore, magnetic fluid will be affected in the distribution of sealing area; The magnetic of magnetic fluid also can exert an influence to the magnetic field of tooth slot position simultaneously, thereby influences near the Magnetic field distribution the teeth groove.Through FEM calculation, this influence strengthens.The teeth groove structure of magnetic pole of the present invention can effectively improve the sealability 10 ~ 15% of magnetic fluid seal device.
Description of drawings
Fig. 1 is the structural representation of a kind of magnetic fluid one pole seal arrangement based on the teeth groove structure of the present invention.
Embodiment
To combine accompanying drawing that the present invention is done further detailed description below: present embodiment provided detailed mode of execution, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technological scheme of the present invention.
As shown in Figure 1; A kind of magnetic fluid one pole seal arrangement based on the teeth groove structure that present embodiment is related comprises: first magnetic pole 1, magnet steel 2, second magnetic pole 3 and magnetic fluid 5, and the both sides of said magnet steel 2 are first magnetic pole 1 and second magnetic pole 3; Second magnetic pole 3 is provided with teeth groove 4; First magnetic pole 1 is provided with down teeth groove 7, and the said teeth groove 4 of going up is crisscross arranged with following teeth groove 7, forms seal clearance 6 between last teeth groove 4 and the following teeth groove 7; Magnetic fluid 5 is arranged between teeth groove 4 and the following teeth groove 7, and the zone that said first magnetic pole 1, magnet steel 2, second magnetic pole 3 and magnetic fluid 5 surround is a sealing area 8.
The above; Be merely the preferable embodiment of the present invention; These embodiments all are based on the different implementations under the general idea of the present invention, and protection scope of the present invention is not limited thereto, and any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. magnetic fluid one pole seal arrangement based on the teeth groove structure; It is characterized in that, comprising: first magnetic pole, magnet steel, second magnetic pole and magnetic fluid, the both sides of said magnet steel are first magnetic pole and second magnetic pole; Second magnetic pole is provided with teeth groove; First magnetic pole is provided with down teeth groove, and the said teeth groove of going up is crisscross arranged with following teeth groove, forms seal clearance between last teeth groove and the following teeth groove; Magnetic fluid is arranged between teeth groove and the following teeth groove, and the zone that said first magnetic pole, magnet steel, second magnetic pole and magnetic fluid surround is a sealing area.
2. the magnetic fluid one pole seal arrangement based on the teeth groove structure according to claim 1 is characterized in that, last teeth groove on said second magnetic pole and the following teeth groove on first magnetic pole are three teeth, two groove structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100986100A CN102588607A (en) | 2012-04-06 | 2012-04-06 | Magnetic fluid single-pole sealing device based on tooth space structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100986100A CN102588607A (en) | 2012-04-06 | 2012-04-06 | Magnetic fluid single-pole sealing device based on tooth space structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102588607A true CN102588607A (en) | 2012-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100986100A Pending CN102588607A (en) | 2012-04-06 | 2012-04-06 | Magnetic fluid single-pole sealing device based on tooth space structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN102588607A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939979A (en) * | 2017-12-14 | 2018-04-20 | 广西科技大学 | A kind of radially type labyrinth type device for sealing magnetic fluid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211517Y (en) * | 1994-08-19 | 1995-11-01 | 杨逢瑜 | Two gear magnetofluid sealer |
| US6247701B1 (en) * | 1997-12-02 | 2001-06-19 | Rigaku Corporation | Magnet proof magnetic fluid sealing device |
| CN2612840Y (en) * | 2003-02-13 | 2004-04-21 | 谭旭 | Detachable magnetic fluid sealing apparatus |
| RU2296903C2 (en) * | 2005-01-11 | 2007-04-10 | Государственное образовательное учреждение высшего профессионального образования "Ивановский государственный энергетический университет им. В.И.Ленина" | Magnetic fluid shaft seal |
| CN201312191Y (en) * | 2008-12-08 | 2009-09-16 | 北京交通大学 | Engraving, milling and grinding electric main shaft sealing structure |
| CN101776149A (en) * | 2010-03-01 | 2010-07-14 | 北京交通大学 | Low-temperature and small-diameter magnetic fluid seal device |
| CN202091517U (en) * | 2011-05-09 | 2011-12-28 | 埃慕迪磁电科技(上海)有限公司 | Improved structure of magnetic fluid sealing device |
-
2012
- 2012-04-06 CN CN2012100986100A patent/CN102588607A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211517Y (en) * | 1994-08-19 | 1995-11-01 | 杨逢瑜 | Two gear magnetofluid sealer |
| US6247701B1 (en) * | 1997-12-02 | 2001-06-19 | Rigaku Corporation | Magnet proof magnetic fluid sealing device |
| CN2612840Y (en) * | 2003-02-13 | 2004-04-21 | 谭旭 | Detachable magnetic fluid sealing apparatus |
| RU2296903C2 (en) * | 2005-01-11 | 2007-04-10 | Государственное образовательное учреждение высшего профессионального образования "Ивановский государственный энергетический университет им. В.И.Ленина" | Magnetic fluid shaft seal |
| CN201312191Y (en) * | 2008-12-08 | 2009-09-16 | 北京交通大学 | Engraving, milling and grinding electric main shaft sealing structure |
| CN101776149A (en) * | 2010-03-01 | 2010-07-14 | 北京交通大学 | Low-temperature and small-diameter magnetic fluid seal device |
| CN202091517U (en) * | 2011-05-09 | 2011-12-28 | 埃慕迪磁电科技(上海)有限公司 | Improved structure of magnetic fluid sealing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939979A (en) * | 2017-12-14 | 2018-04-20 | 广西科技大学 | A kind of radially type labyrinth type device for sealing magnetic fluid |
| CN107939979B (en) * | 2017-12-14 | 2023-05-02 | 广西科技大学 | Radial divergent labyrinth type magnetic fluid sealing device |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |