CN204004418U - A kind of screw axis seal arrangement - Google Patents
A kind of screw axis seal arrangement Download PDFInfo
- Publication number
- CN204004418U CN204004418U CN201420228404.1U CN201420228404U CN204004418U CN 204004418 U CN204004418 U CN 204004418U CN 201420228404 U CN201420228404 U CN 201420228404U CN 204004418 U CN204004418 U CN 204004418U
- Authority
- CN
- China
- Prior art keywords
- screw axis
- seal cage
- seal
- annular distance
- outside
- 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 kind of screw axis seal arrangement, be installed on the outside of working room, be used for sealing screw axis, screw axis carrys out conveying material in the chamber of working room, comprise the housing, the gland that are located in from inside to outside screw axis outer surface, between housing and screw axis, be provided with Seal cage, the outer end of Seal cage is connected with gland, the middle part of Seal cage is provided with the annular distance that connects nitrogen back-blowing device, filled rubber asbestos in the Seal cage of annular distance inner side, fill tetrafluoro graphite annulus in the Seal cage in annular distance outside.The beneficial effects of the utility model are: sealing arrangement works is stable, and the operation period is long, have avoided in a short time maintenance repeatedly, have improved economic benefit.
Description
Technical field
The utility model relates to a kind of screw axis seal arrangement.
Background technique
In many fields such as forestry, chemical industry, pharmacy, general screw axle is carried powder, in production because the seal arrangement poor sealing on screw axis causes powder leakage comparatively serious, on average every day, leakage rate reached 30kg, not only cause economic loss, but also severe contamination environment, make work-yard deposited powder everywhere, there is potential safety hazard, airborne Dust Capacity severe overweight, has certain harm to site operation personnel.Therefore, the leakage problem of screw axis seal arrangement must thoroughly solve.
Model utility content
The technical problems to be solved in the utility model is: based on the problems referred to above, provide a kind of screw axis seal arrangement.
The utility model solves the technological scheme that its technical problem adopts: a kind of screw axis seal arrangement, be installed on the outside of working room, be used for sealing screw axis, screw axis carrys out conveying material in the chamber of working room, comprise the housing, the gland that are located in from inside to outside screw axis outer surface, between housing and screw axis, be provided with Seal cage, the outer end of Seal cage is connected with gland, the middle part of Seal cage is provided with the annular distance that connects nitrogen back-blowing device, filled rubber asbestos in the Seal cage of annular distance inner side, fill tetrafluoro graphite annulus in the Seal cage in annular distance outside.
Further, the gap between tetrafluoro graphite annulus and screw axis is less than 0.1mm.
The beneficial effects of the utility model are: sealing arrangement works is stable, and the operation period is long, have avoided in a short time maintenance repeatedly, have improved economic benefit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Wherein: 1. screw axis, 3. gland, 4. annular distance, 5. rubber asbestos, 6. housing, 7. tetrafluoro graphite annulus.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of screw axis seal arrangement as shown in Figure 1, be installed on the outside of working room, be used for sealing screw axis 1, screw axis 1 carrys out conveying material in the chamber of working room, comprise the housing 6, the gland 3 that are located in from inside to outside screw axis 1 outer surface, between housing 6 and screw axis 1, be provided with Seal cage, the outer end of Seal cage is connected with gland 3, the middle part of Seal cage is provided with the annular distance 4 that connects nitrogen back-blowing device, filled rubber asbestos 5 in the Seal cage of annular distance 4 inner sides, fill tetrafluoro graphite annulus 7 in the Seal cage in annular distance 4 outsides.
Gap between tetrafluoro graphite annulus 7 and screw axis 1 is less than 0.1mm.
The self-lubricating property of tetrafluoro graphite annulus 7 is good, and wear-resistant (friction factor 0.06), is not subject to the restriction of rotating speed, temperature, has outstanding thermal shock resistance simultaneously.
Sealing arrangement works is stable, and the operation period is long, has avoided in a short time maintenance repeatedly, has improved economic benefit.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this model utility technological thought, carry out various change and modification completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (2)
1. a screw axis seal arrangement, be installed on the outside of working room, be used for sealing screw axis (1), screw axis (1) carrys out conveying material in the chamber of working room, it is characterized in that: comprise the housing (6) that is located in from inside to outside screw axis (1) outer surface, gland (3), between housing (6) and screw axis (1), be provided with Seal cage, the outer end of Seal cage is connected with gland (3), the middle part of Seal cage is provided with the annular distance (4) that connects nitrogen back-blowing device, filled rubber asbestos (5) in the Seal cage of annular distance (4) inner side, in the Seal cage in annular distance (4) outside, fill tetrafluoro graphite annulus (7).
2. a kind of screw axis seal arrangement according to claim 1, is characterized in that: described tetrafluoro graphite annulus (7) and the gap between screw axis (1) are less than 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228404.1U CN204004418U (en) | 2014-05-06 | 2014-05-06 | A kind of screw axis seal arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228404.1U CN204004418U (en) | 2014-05-06 | 2014-05-06 | A kind of screw axis seal arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004418U true CN204004418U (en) | 2014-12-10 |
Family
ID=52044421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420228404.1U Expired - Fee Related CN204004418U (en) | 2014-05-06 | 2014-05-06 | A kind of screw axis seal arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939614A (en) * | 2014-05-06 | 2014-07-23 | 王敏 | Screw shaft sealing device |
-
2014
- 2014-05-06 CN CN201420228404.1U patent/CN204004418U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939614A (en) * | 2014-05-06 | 2014-07-23 | 王敏 | Screw shaft sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150506 |
|
| EXPY | Termination of patent right or utility model |