CN201149092Y - Magnetic fluid sealing device for vacuum part rotating seal - Google Patents
Magnetic fluid sealing device for vacuum part rotating seal Download PDFInfo
- Publication number
- CN201149092Y CN201149092Y CNU200720065555XU CN200720065555U CN201149092Y CN 201149092 Y CN201149092 Y CN 201149092Y CN U200720065555X U CNU200720065555X U CN U200720065555XU CN 200720065555 U CN200720065555 U CN 200720065555U CN 201149092 Y CN201149092 Y CN 201149092Y
- Authority
- CN
- China
- Prior art keywords
- magnetic fluid
- fluid sealing
- sealing device
- vacuum part
- bearing
- 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
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a magnetic fluid sealing device for the rotary sealing of a vacuum part, which comprises a shell body, a screw cap, a bearing, a washer, a shaft sleeve, a magnetic fluid sealing component and an O-shaped ring, and is characterized in that: an annular pit is increasedly arranged on the screw cap, and an oblique sewage hole which penetrates the shell body is connected at the bottom part of the annular pit. Compared with the original magnetic fluid sealing device, the magnetic fluid sealing device can prevent pollutants (such as alcohol, dust, etc.) which fall from the upper part entering the bearing and the magnetic fluid sealing component via a seam of the screw cap to cause the damage to the two, thus prolonging the service life of the magnetic fluid sealing device.
Description
Technical field
The utility model relates to a kind of vacuum part rotary seal device for sealing magnetic fluid.
Background technique
In order to solve the rotary seal problem of vacuum part, the inventor once designed a kind of device for sealing magnetic fluid of special use, and the sealing device contains housing, spiral cover, bearing, packing ring, axle sleeve, magnet fluid sealing assembly and O shape circle; During concrete the application, it has exposed a big weakness, and that is exactly that its top often has pollutant (as alcohol, dust etc.) to fall down, and enters bearing and magnet fluid sealing assembly position from the slit of spiral cover, finally cause the disastrous effect of damage of bearings and magnetic fluid inefficacy, truly have necessity of improvement.
Summary of the invention
The purpose of this utility model is exactly that design to original device for sealing magnetic fluid improves, with the rotary seal problem of better solution vacuum part.
The technical solution of the utility model is: have additional circular pit on the spiral cover of original device, and pit bottom is connected to the tilting pollutant exhaust hole that penetrates housing.
In concrete the enforcement, above-mentioned tilting pollutant exhaust hole has two at least.
The beneficial effects of the utility model are: because set up circular pit on spiral cover, the circular pit bottom is connected to the tilting pollutant exhaust hole that penetrates housing again, pollutants such as the dust that falls down from above in service, alcohol will in time be discharged outside the device for sealing magnetic fluid, and be unlikely to enter bearing and magnet fluid sealing assembly position and cause their damage and inefficacy through the slit of spiral cover, though really be that little its effect of measure can not be ignored.
Description of drawings
Fig. 1 is the structural representation of original vacuum part rotary seal with device for sealing magnetic fluid.
Fig. 2 is a structural representation of the present utility model.
Among the figure, 1---housing, 2---spiral cover, 3---bearing, 4---packing ring, 5---axle sleeve, 6---the magnet fluid sealing assembly, 7---O shape circle, 8---circular pit, 9---tilting pollutant exhaust hole.
Embodiment
The difference of the utility model and original technology has 2 points as can be seen from the contrast of Fig. 2 and Fig. 1: one has additional a circular pit 8 on spiral cover 2; Its two, be connected to the tilting pollutant exhaust hole 9 that penetrates housing 1 for 8 times at circular pit.Such improvement, make this device for sealing magnetic fluid when work, the pollutant that falls down from above such as alcohol, dust etc. can be introduced into the circular pit 8 on the spiral cover, give off outside the device by the tilting pollutant exhaust hole that penetrates housing 1 then, thereby avoided the damage of pollutant, prolonged the working life of device bearing and magnetic fluid.
Notice that the tilting pollutant exhaust hole shown in Fig. 2 has two.
Claims (2)
1. vacuum part rotary seal device for sealing magnetic fluid, it comprises housing (1) spiral cover (2), bearing (3), packing ring (4), axle sleeve (5), magnet fluid sealing assembly (6) and O shape circle (7), it is characterized in that: on described spiral cover (2), have additional circular pit (8), and circular pit (8) bottom is connected to the tilting pollutant exhaust hole (9) that penetrates housing (1).
2. vacuum part rotary seal device for sealing magnetic fluid according to claim 1 is characterized in that described tilting pollutant exhaust hole (9) has one at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720065555XU CN201149092Y (en) | 2007-12-26 | 2007-12-26 | Magnetic fluid sealing device for vacuum part rotating seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720065555XU CN201149092Y (en) | 2007-12-26 | 2007-12-26 | Magnetic fluid sealing device for vacuum part rotating seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149092Y true CN201149092Y (en) | 2008-11-12 |
Family
ID=40116860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720065555XU Expired - Fee Related CN201149092Y (en) | 2007-12-26 | 2007-12-26 | Magnetic fluid sealing device for vacuum part rotating seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149092Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052463A (en) * | 2009-10-28 | 2011-05-11 | 财团法人工业技术研究院 | Vacuum rotating power transmitting device |
| CN107630932A (en) * | 2017-10-23 | 2018-01-26 | 唐小超 | Self-aligning separable bearing of clutch assembly |
-
2007
- 2007-12-26 CN CNU200720065555XU patent/CN201149092Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052463A (en) * | 2009-10-28 | 2011-05-11 | 财团法人工业技术研究院 | Vacuum rotating power transmitting device |
| CN102052463B (en) * | 2009-10-28 | 2013-05-22 | 财团法人工业技术研究院 | Vacuum rotating power transmitting device |
| CN107630932A (en) * | 2017-10-23 | 2018-01-26 | 唐小超 | Self-aligning separable bearing of clutch assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20101226 |