CN205401724U - Reduce decentered device of big clearance magnetic fluid seal system pivot - Google Patents
Reduce decentered device of big clearance magnetic fluid seal system pivot Download PDFInfo
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- CN205401724U CN205401724U CN201620170539.6U CN201620170539U CN205401724U CN 205401724 U CN205401724 U CN 205401724U CN 201620170539 U CN201620170539 U CN 201620170539U CN 205401724 U CN205401724 U CN 205401724U
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- permanent magnet
- rotating shaft
- magnetic fluid
- fluid seal
- seal system
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a reduce decentered device of big clearance magnetic fluid seal system pivot, the device's first permanent magnet, second permanent magnet, third permanent magnet, fourth permanent magnet set up respectively and are close to on the inboard position of both sides bearing in big clearance magnetic fluid seal system, on the inner wall of the shell of big clearance magnetic fluid seal system was located to first permanent magnet and third permanent magnet, second permanent magnet and fourth permanent magnet were established in the pivot of big clearance magnetic fluid seal system, first permanent magnet repels each other with the second permanent magnet, and the same footpath that lies in the pivot makes progress, third permanent magnet and fourth permanent magnet repel each other, and the same footpath that lies in the pivot makes progress. The pivot moves more steadily under the effect of magnetic field force between the permanent magnet to present big clearance magnetic fluid seal device is overcome because the off -centre of pivot results in the relatively poor difficult problem of sealing performance reliability to offset when reducing in the big clearance magnetic fluid seal system pivot operation.
Description
Technical field
This utility model belongs to sealing field of mechanical engineering, is specifically related to a kind of device reducing wide arc gap magnetic fluid seal system rotating shaft bias.
Background technology
Sealing main purpose is protection working media; prevent working media leakage or pollute; along with the fast development of industry is sealed in industrial equipment and mechanical manufacturing field and plays more and more important effect; poor sealing can cause sealing medium to leak; contaminated environment; introduced contaminants invades equipment pollution sealing medium simultaneously, has a strong impact on production properly functioning, causes huge production waste and economic loss.Along with economical growing, sealing property is required more and more higher by the association areas such as industrial equipment, traditional sealing means is difficult to meet the seal request of some special occasions, the development of magnetic fluid technique has promoted the development of Magneticfluid Seal Technique, and Magneticfluid Seal Technique just plays an increasingly important role in field of sealing technology.Magnet fluid sealing development trend requires to need to improve sealing reliability and sealability.When magnetic fluid seal technology is applied in major diameter, high speed and heavy duty sealed environment, the bigger radial beat eccentricity of rotating shaft requires that seal clearance is also bigger, and in bigger seal clearance, even if less rotating speed also can cause the bias of rotating shaft thus causing that the decline of magnetic fluid seal performance was even lost efficacy.Therefore the eccentricity issues solving wide arc gap magnetic fluid seal rotating shaft has great importance for the reliability improving magnetic fluid seal performance.
Summary of the invention
This utility model aims to provide and a kind of reduces the device that wide arc gap magnetic fluid seal system rotating shaft is eccentric, thus solving the difficult problem that pressure performance that existing wide arc gap sealing device exists is relatively low so that this Sealing Technology is successfully applied in the fields such as high-speed overload.
The technical solution of the utility model is as follows:
A kind of device reducing wide arc gap magnetic fluid seal system rotating shaft bias, including the first circular permanent magnet, the second permanent magnet, the 3rd permanent magnet and the 4th permanent magnet.
On the position that described the first permanent magnet, the second permanent magnet, the 3rd permanent magnet, the 4th permanent magnet are separately positioned in wide arc gap magnetic fluid seal system inside two side bearings, the first permanent magnet, the second permanent magnet, the 3rd permanent magnet, between the 4th permanent magnet and bearing, it is provided with magnetism-isolating loop I；The first described permanent magnet and the 3rd permanent magnet are located on the inwall of shell, and the second described permanent magnet and the 4th permanent magnet are located in the rotating shaft of wide arc gap magnetic fluid seal system；The first described permanent magnet and the second permanent magnet repel each other, and leave space between the first permanent magnet and the second permanent magnet；The 3rd described permanent magnet and the 4th permanent magnet repel each other, and leave space between the 3rd permanent magnet and the 4th permanent magnet.
The first described permanent magnet and the second permanent magnet are radial magnetizing type permanent magnet, and the magnetic on the first permanent magnet inner headed face is identical with the magnetic on the second permanent magnet periphery.
The 3rd described permanent magnet and the 4th permanent magnet are radial magnetizing type permanent magnet, and the magnetic on the 3rd permanent magnet inner headed face is identical with the magnetic on the 4th permanent magnet periphery.
The first described permanent magnet inner headed face and the radial distance of the second permanent magnet periphery are 10mm-80mm.
The 3rd described permanent magnet inner headed face and the radial distance of the 4th permanent magnet periphery are 10mm-80mm.
Described wide arc gap magnetic fluid seal system includes bearing, shell, rotating shaft, pole shoe, the 5th permanent magnet, sealing ring；Described outer cover suit is in rotating shaft, and described bearing is respectively arranged in rotating shaft on the two ends of shell；The 5th described permanent magnet is ring-type, is arranged on the inwall in the middle part of shell, there is space between inner headed face and the rotating shaft of the 5th permanent magnet；The 5th described permanent magnet both sides are connected to pole shoe, the arranged outside magnetism-isolating loop II of pole shoe, are separately installed with sealing ring in the described groove on pole shoe cylindrical；The 5th described permanent magnet is axial charging type permanent magnet.
Described magnetism-isolating loop I includes outer magnetism-isolating loop and interior magnetism-isolating loop, outer magnetism-isolating loop is located in the outside of the first permanent magnet, the 3rd permanent magnet, interior magnetism-isolating loop is located at the outside of the second permanent magnet, the 4th permanent magnet, outer magnetism-isolating loop and interior magnetism-isolating loop and is positioned in the same radial position of rotating shaft.
The installation process of wide arc gap magnetic fluid seal device of the present utility model is as follows: be separately mounted to by sealing ring in the groove on pole shoe cylindrical；Assemble the pole shoe of the 5th permanent magnet and both sides thereof, and magnetic fluid is injected formation black box on the disc of pole shoe, black box is arranged on rotating shaft from left side；Magnetism-isolating loop II is installed in the outside of pole shoe；First permanent magnet and the second corresponding permanent magnet are installed in the outside of the magnetism-isolating loop II in left side, the 3rd permanent magnet and the 4th corresponding permanent magnet are installed in the outside of right side magnetism-isolating loop II；Magnetism-isolating loop I is installed in the outside of the two groups of permanent magnets in left and right；The outside of magnetism-isolating loop I connects bearing；By outer cover suit on the outer surface of above-mentioned parts, make the bearing left inside end face against shell in left side；The outer ring compressing right side bearing of threadeding finally by end cap with shell right-hand member.
The method that this utility model reduces wide arc gap magnetic fluid seal system rotating shaft eccentric is: in wide arc gap magnetic fluid seal system, the both sides of magnetic fluid are respectively provided with the radial magnetizing type permanent magnet repelled each other a pair, i.e. the first permanent magnet and the second permanent magnet the 3rd permanent magnet and the 4th permanent magnet；First permanent magnet and the 3rd permanent magnet are located on the inwall of shell of wide arc gap magnetic fluid seal system, and the second permanent magnet and the 4th permanent magnet are located in the rotating shaft of wide arc gap magnetic fluid seal system；First permanent magnet and the second permanent magnet repel each other, 3rd permanent magnet and the 4th permanent magnet repel each other, the operation of held stationary under the effect of the magnetic field force that rotating shaft repels each other at two groups of permanent magnets, is greatly reduced the radial beat eccentricity in rotating shaft running, increases the reliability of sealing property.
This utility model repels each other the principle that there is a natural attraction between the sexes according to permanent magnet like pole, in wide arc gap magnetic fluid seal system, the both sides of magnetic fluid seal are respectively provided with the radial magnetizing type permanent magnet repelled each other a pair, thus realizing reducing the method that wide arc gap magnetic fluid seal shaft is eccentric.
This utility model overcome existing wide arc gap magnetic fluid seal device due to the bias of rotating shaft cause sealing property reliability poor a difficult problem, improve voltage endurance capability and the sealing reliability of wide arc gap condition magnetic fluid-tight, expand its range of safety operation.
Accompanying drawing explanation
Accompanying drawing 1 is wide arc gap magnetic fluid seal device schematic diagram
In figure, the structure title of each sequence number sign and correspondence thereof is as follows: 1-the first permanent magnet, 2-the second permanent magnet, 3-the 3rd permanent magnet, 4-the 4th permanent magnet, magnetism-isolating loop in 5-, 6-bearing, the outer magnetism-isolating loop of 7-, 8-magnetism-isolating loop II, 9-pole shoe, 10-the 5th permanent magnet, 11-sealing ring, 12-shell, 13-rotating shaft, 14-end cap.
Detailed description of the invention
Utilize embodiment that this utility model is further described below in conjunction with accompanying drawing.
Embodiment 1
As shown in Figure 1, a kind of device reducing wide arc gap magnetic fluid seal system rotating shaft bias, including the first circular permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet 3 and the 4th permanent magnet 4；On the position that first permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet the 3, the 4th permanent magnet 4 is separately positioned in wide arc gap magnetic fluid seal system inside two side bearings 6, between first permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet the 3, the 4th permanent magnet 4 and bearing 6, it is provided with magnetism-isolating loop I；First permanent magnet 1 and the 3rd permanent magnet 3 are located on the inwall of shell 12 of wide arc gap magnetic fluid seal system, and the second permanent magnet 2 and the 4th permanent magnet 4 are located in the rotating shaft 13 of wide arc gap magnetic fluid seal system；First permanent magnet 1 and the second permanent magnet 2 repel each other, be positioned at rotating shaft 13 same radially, leave space between the first permanent magnet 1 and the second permanent magnet 2；3rd permanent magnet 3 and the 4th permanent magnet 4 repel each other, be positioned at rotating shaft 13 same radially, leave space between the 3rd permanent magnet 3 and the 4th permanent magnet 4.
First permanent magnet 1 and the second permanent magnet 2 are radial magnetizing type permanent magnet, and the magnetic on the first permanent magnet 1 inner headed face is identical with the magnetic on the second permanent magnet 2 periphery；3rd permanent magnet 3 and the 4th permanent magnet 4 are radial magnetizing type permanent magnet, and the magnetic on the 3rd permanent magnet 3 inner headed face is identical with the magnetic on the 4th permanent magnet 4 periphery.
The radial distance of the first permanent magnet 1 inner headed face and the second permanent magnet 2 periphery is 10mm；The radial distance of the 3rd permanent magnet 3 inner headed face and the 4th permanent magnet 4 periphery is 10mm.
Wide arc gap magnetic fluid seal system includes bearing 6, shell 12, rotating shaft 13, pole shoe the 9, the 5th permanent magnet 10, sealing ring 11；Shell 12 is sleeved in rotating shaft 13, and bearing 6 is respectively arranged in rotating shaft 13 on the two ends of shell 12；5th permanent magnet 10 is ring-type, is arranged on the inwall in the middle part of shell 12, there is space between inner headed face and the rotating shaft 13 of the 5th permanent magnet 10；5th permanent magnet 10 both sides are connected to pole shoe 9, the arranged outside magnetism-isolating loop II8 of pole shoe 9, are separately installed with sealing ring 11 in the groove on pole shoe 9 cylindrical；5th permanent magnet 10 is axial charging type permanent magnet.
Magnetism-isolating loop I includes outer magnetism-isolating loop 7 and interior magnetism-isolating loop 5, outer magnetism-isolating loop 7 is located in the outside of the first permanent magnet the 1, the 3rd permanent magnet 3, interior magnetism-isolating loop 5 is located at the outside of the second permanent magnet the 2, the 4th permanent magnet 4, and outer magnetism-isolating loop 7 and interior magnetism-isolating loop 5 are positioned in the same radial position of rotating shaft 13.
The installation process of the wide arc gap magnetic fluid seal device of the present embodiment is as follows: be separately mounted to by sealing ring 11 in the groove on pole shoe 9 cylindrical；Assemble the pole shoe 9 of the 5th permanent magnet 10 and both sides thereof, and magnetic fluid is injected formation black box on the disc of pole shoe 9, black box is arranged on rotating shaft 13 from left side；Magnetism-isolating loop II8 is installed in the outside of pole shoe 9；First permanent magnet 1 and the second corresponding permanent magnet 2 are installed in the outside of the magnetism-isolating loop II8 in left side, the 3rd permanent magnet 3 and the 4th corresponding permanent magnet 4 are installed in the outside of right side magnetism-isolating loop II8；Magnetism-isolating loop I is installed in the outside of the two groups of permanent magnets in left and right；The outside of magnetism-isolating loop I connects bearing 6；Shell 12 is sleeved on the outer surface of above-mentioned parts, makes the bearing 6 left inside end face against shell 12 in left side；The outer ring compressing right side bearing 6 of threadeding finally by end cap 14 with shell 12 right-hand member.
The method that the present embodiment reduces wide arc gap magnetic fluid seal system rotating shaft eccentric is: in wide arc gap magnetic fluid seal system, the both sides of magnetic fluid are respectively provided with the radial magnetizing type permanent magnet repelled each other a pair, i.e. the first permanent magnet 1 and the second permanent magnet the 2, the 3rd permanent magnet 3 and the 4th permanent magnet 4；First permanent magnet 1 and the 3rd permanent magnet 3 are located on the inwall of shell 12 of wide arc gap magnetic fluid seal system, and the second permanent magnet 2 and the 4th permanent magnet 4 are located in the rotating shaft 13 of wide arc gap magnetic fluid seal system；First permanent magnet 1 and the second permanent magnet 2 repel each other, 3rd permanent magnet 3 and the 4th permanent magnet 4 repel each other, the operation of held stationary under the effect of the magnetic field force that rotating shaft 13 repels each other at two groups of permanent magnets, is greatly reduced the radial beat eccentricity in rotating shaft 13 running, increases the reliability of sealing property.
Embodiment 2
As shown in Figure 1, a kind of device reducing wide arc gap magnetic fluid seal system rotating shaft bias, including the first circular permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet 3 and the 4th permanent magnet 4；On the position that first permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet the 3, the 4th permanent magnet 4 is separately positioned in wide arc gap magnetic fluid seal system inside two side bearings 6, between first permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet the 3, the 4th permanent magnet 4 and bearing 6, it is provided with magnetism-isolating loop I；First permanent magnet 1 and the 3rd permanent magnet 3 are located on the inwall of shell 12 of wide arc gap magnetic fluid seal system, and the second permanent magnet 2 and the 4th permanent magnet 4 are located in the rotating shaft 13 of wide arc gap magnetic fluid seal system；First permanent magnet 1 and the second permanent magnet 2 repel each other, be positioned at rotating shaft 13 same radially, leave space between the first permanent magnet 1 and the second permanent magnet 2；3rd permanent magnet 3 and the 4th permanent magnet 4 repel each other, be positioned at rotating shaft 13 same radially, leave space between the 3rd permanent magnet 3 and the 4th permanent magnet 4.
First permanent magnet 1 and the second permanent magnet 2 are radial magnetizing type permanent magnet, and the magnetic on the first permanent magnet 1 inner headed face is identical with the magnetic on the second permanent magnet 2 periphery；3rd permanent magnet 3 and the 4th permanent magnet 4 are radial magnetizing type permanent magnet, and the magnetic on the 3rd permanent magnet 3 inner headed face is identical with the magnetic on the 4th permanent magnet 4 periphery.
The radial distance of the first permanent magnet 1 inner headed face and the second permanent magnet 2 periphery is 40mm；The radial distance of the 3rd permanent magnet 3 inner headed face and the 4th permanent magnet 4 periphery is 40mm.
Wide arc gap magnetic fluid seal system includes bearing 6, shell 12, rotating shaft 13, pole shoe the 9, the 5th permanent magnet 10, sealing ring 11；Shell 12 is sleeved in rotating shaft 13, and bearing 6 is respectively arranged in rotating shaft 13 on the two ends of shell 12；5th permanent magnet 10 is ring-type, is arranged on the inwall in the middle part of shell 12, there is space between inner headed face and the rotating shaft 13 of the 5th permanent magnet 10；5th permanent magnet 10 both sides are connected to pole shoe 9, the arranged outside magnetism-isolating loop II8 of pole shoe 9, are separately installed with sealing ring 11 in the groove on pole shoe 9 cylindrical；5th permanent magnet 10 is axial charging type permanent magnet.
Magnetism-isolating loop I includes outer magnetism-isolating loop 7 and interior magnetism-isolating loop 5, outer magnetism-isolating loop 7 is located in the outside of the first permanent magnet the 1, the 3rd permanent magnet 3, interior magnetism-isolating loop 5 is located at the outside of the second permanent magnet the 2, the 4th permanent magnet 4, and outer magnetism-isolating loop 7 and interior magnetism-isolating loop 5 are positioned in the same radial position of rotating shaft 13.
The installation process of the present embodiment and the method for reduction wide arc gap magnetic fluid seal system rotating shaft bias are identical with embodiment 1.
Embodiment 3
As shown in Figure 1, a kind of device reducing wide arc gap magnetic fluid seal system rotating shaft bias, including the first circular permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet 3 and the 4th permanent magnet 4；On the position that first permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet the 3, the 4th permanent magnet 4 is separately positioned in wide arc gap magnetic fluid seal system inside two side bearings 6, between first permanent magnet the 1, second permanent magnet the 2, the 3rd permanent magnet the 3, the 4th permanent magnet 4 and bearing 6, it is provided with magnetism-isolating loop I；First permanent magnet 1 and the 3rd permanent magnet 3 are located on the inwall of shell 12 of wide arc gap magnetic fluid seal system, and the second permanent magnet 2 and the 4th permanent magnet 4 are located in the rotating shaft 13 of wide arc gap magnetic fluid seal system；First permanent magnet 1 and the second permanent magnet 2 repel each other, be positioned at rotating shaft 13 same radially, leave space between the first permanent magnet 1 and the second permanent magnet 2；3rd permanent magnet 3 and the 4th permanent magnet 4 repel each other, be positioned at rotating shaft 13 same radially, leave space between the 3rd permanent magnet 3 and the 4th permanent magnet 4.
First permanent magnet 1 and the second permanent magnet 2 are radial magnetizing type permanent magnet, and the magnetic on the first permanent magnet 1 inner headed face is identical with the magnetic on the second permanent magnet 2 periphery；3rd permanent magnet 3 and the 4th permanent magnet 4 are radial magnetizing type permanent magnet, and the magnetic on the 3rd permanent magnet 3 inner headed face is identical with the magnetic on the 4th permanent magnet 4 periphery.
The radial distance of the first permanent magnet 1 inner headed face and the second permanent magnet 2 periphery is 80mm；The radial distance of the 3rd permanent magnet 3 inner headed face and the 4th permanent magnet 4 periphery is 80mm.
Wide arc gap magnetic fluid seal system includes bearing 6, shell 12, rotating shaft 13, pole shoe the 9, the 5th permanent magnet 10, sealing ring 11；Shell 12 is sleeved in rotating shaft 13, and bearing 6 is respectively arranged in rotating shaft 13 on the two ends of shell 12；5th permanent magnet 10 is ring-type, is arranged on the inwall in the middle part of shell 12, there is space between inner headed face and the rotating shaft 13 of the 5th permanent magnet 10；5th permanent magnet 10 both sides are connected to pole shoe 9, the arranged outside magnetism-isolating loop II8 of pole shoe 9, are separately installed with sealing ring 11 in the groove on pole shoe 9 cylindrical；5th permanent magnet 10 is axial charging type permanent magnet.
Magnetism-isolating loop I includes outer magnetism-isolating loop 7 and interior magnetism-isolating loop 5, outer magnetism-isolating loop 7 is located in the outside of the first permanent magnet the 1, the 3rd permanent magnet 3, interior magnetism-isolating loop 5 is located at the outside of the second permanent magnet the 2, the 4th permanent magnet 4, and outer magnetism-isolating loop 7 and interior magnetism-isolating loop 5 are positioned in the same radial position of rotating shaft 13.
The installation process of the present embodiment and the method for reduction wide arc gap magnetic fluid seal system rotating shaft bias are identical with embodiment 1.
Claims (8)
1. reduce the device that wide arc gap magnetic fluid seal system rotating shaft is eccentric, including circular the first permanent magnet (1), the second permanent magnet (2), the 3rd permanent magnet (3) and the 4th permanent magnet (4), it is characterised in that:
Described the first permanent magnet (1), the second permanent magnet (2), the 3rd permanent magnet (3), the 4th permanent magnet (4) are separately positioned in wide arc gap magnetic fluid seal system on the position of two side bearings (6) inner side, the first permanent magnet (1), the second permanent magnet (2), the 3rd permanent magnet (3), are provided with magnetism-isolating loop I between the 4th permanent magnet (4) and bearing (6)；Described the first permanent magnet (1) and the 3rd permanent magnet (3) are located on the inwall of shell (12) of wide arc gap magnetic fluid seal system, and described the second permanent magnet (2) and the 4th permanent magnet (4) are located in the rotating shaft (13) of wide arc gap magnetic fluid seal system；Described the first permanent magnet (1) and the second permanent magnet (2) repel each other, be positioned at rotating shaft (13) same radially, leave space between the first permanent magnet (1) and the second permanent magnet (2)；The 3rd described permanent magnet (3) and the 4th permanent magnet (4) repel each other, be positioned at rotating shaft (13) same radially, leave space between the 3rd permanent magnet (3) and the 4th permanent magnet (4).
2. the device reducing wide arc gap magnetic fluid seal system rotating shaft bias as claimed in claim 1, it is characterized in that: described the first permanent magnet (1) and the second permanent magnet (2) are radial magnetizing type permanent magnet, and the magnetic on the first permanent magnet (1) inner headed face is identical with the magnetic on the second permanent magnet (2) periphery.
3. the device reducing wide arc gap magnetic fluid seal system rotating shaft bias as claimed in claim 1 or 2, it is characterized in that: the 3rd described permanent magnet (3) and the 4th permanent magnet (4) are radial magnetizing type permanent magnet, and the magnetic on the 3rd permanent magnet (3) inner headed face is identical with the magnetic on the 4th permanent magnet (4) periphery.
4. the device reducing wide arc gap magnetic fluid seal system rotating shaft bias as claimed in claim 1, it is characterised in that: described the first permanent magnet (1) inner headed face and the radial distance of the second permanent magnet (2) periphery are 10mm-80mm.
5. the device reducing wide arc gap magnetic fluid seal system rotating shaft bias as claimed in claim 1, it is characterised in that: the 3rd described permanent magnet (3) inner headed face and the radial distance of the 4th permanent magnet (4) periphery are 10mm-80mm.
6. the device reducing wide arc gap magnetic fluid seal system rotating shaft bias as claimed in claim 1, it is characterised in that: described wide arc gap magnetic fluid seal system includes bearing (6), shell (12), rotating shaft (13), pole shoe (9), the 5th permanent magnet (10), sealing ring (11)；Described shell (12) is sleeved in rotating shaft (13), and it is upper on the two ends of shell (12) that described bearing (6) is respectively arranged on rotating shaft (13)；The 5th described permanent magnet (10) is ring-type, is arranged on the inwall at shell (12) middle part, there is space between inner headed face and the rotating shaft (13) of the 5th permanent magnet (10)；The 5th described permanent magnet (10) both sides are connected to pole shoe (9), the arranged outside magnetism-isolating loop II(8 of pole shoe (9)), it is separately installed with sealing ring (11) in the described groove on pole shoe (9) cylindrical.
7. the device reducing wide arc gap magnetic fluid seal system rotating shaft bias as claimed in claim 6, it is characterized in that: described magnetism-isolating loop I includes outer magnetism-isolating loop (7) and interior magnetism-isolating loop (5), outer magnetism-isolating loop (7) is located in the outside of the first permanent magnet (1), the 3rd permanent magnet (3), interior magnetism-isolating loop (5) is located at the outside of the second permanent magnet (2), the 4th permanent magnet (4), outer magnetism-isolating loop (7) and interior magnetism-isolating loop (5) and is positioned in the same radial position of rotating shaft (13).
8. the device reducing wide arc gap magnetic fluid seal system rotating shaft bias as claimed in claim 6, it is characterised in that: the 5th described permanent magnet (10) is axial charging type permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170539.6U CN205401724U (en) | 2016-03-07 | 2016-03-07 | Reduce decentered device of big clearance magnetic fluid seal system pivot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170539.6U CN205401724U (en) | 2016-03-07 | 2016-03-07 | Reduce decentered device of big clearance magnetic fluid seal system pivot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401724U true CN205401724U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620170539.6U Expired - Fee Related CN205401724U (en) | 2016-03-07 | 2016-03-07 | Reduce decentered device of big clearance magnetic fluid seal system pivot |
Country Status (1)
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| CN (1) | CN205401724U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546123A (en) * | 2016-03-07 | 2016-05-04 | 广西科技大学 | Device and method for reducing eccentricity of rotating shaft of large-gap magnetic fluid sealing system |
| CN106854990A (en) * | 2017-01-10 | 2017-06-16 | 济南中铁重工轨道装备有限公司 | Shield machine centre revolving joint magnet fluid sealing |
| CN114198504A (en) * | 2021-10-09 | 2022-03-18 | 温州大学 | Magnetic source compensation magnetic liquid sealing device for eccentric working condition and de-eccentricity method |
-
2016
- 2016-03-07 CN CN201620170539.6U patent/CN205401724U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546123A (en) * | 2016-03-07 | 2016-05-04 | 广西科技大学 | Device and method for reducing eccentricity of rotating shaft of large-gap magnetic fluid sealing system |
| CN106854990A (en) * | 2017-01-10 | 2017-06-16 | 济南中铁重工轨道装备有限公司 | Shield machine centre revolving joint magnet fluid sealing |
| CN114198504A (en) * | 2021-10-09 | 2022-03-18 | 温州大学 | Magnetic source compensation magnetic liquid sealing device for eccentric working condition and de-eccentricity method |
| CN114198504B (en) * | 2021-10-09 | 2024-01-16 | 温州大学 | Magnetic source compensation magnetic liquid sealing device for eccentric working condition and eccentric removing method |
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| 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: 20160727 Termination date: 20180307 |