CN201487436U - Novel rotary joint - Google Patents
Novel rotary joint Download PDFInfo
- Publication number
- CN201487436U CN201487436U CN2009202083751U CN200920208375U CN201487436U CN 201487436 U CN201487436 U CN 201487436U CN 2009202083751 U CN2009202083751 U CN 2009202083751U CN 200920208375 U CN200920208375 U CN 200920208375U CN 201487436 U CN201487436 U CN 201487436U
- Authority
- CN
- China
- Prior art keywords
- rotation
- solid
- static seal
- sealing piece
- rotator
- 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
- 230000003068 static Effects 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims description 21
- 239000007770 graphite material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Abstract
The utility model relates to a novel rotary joint, which comprises a shell, a rotator, a static sealing piece and a compression spring, wherein the static sealing piece is arranged in an inner pipe of the shell; the end face of the static sealing piece is attached to the end face of the rotator to form a sealing surface; the compression spring is arranged at the rear end of the static sealing piece to compress the static sealing piece and the rotator; the shell is supported on the rotator through a pair of bearings; and the outer rings of the bearings are fixed on the shell through inner check rings, while the inner rings are fixed on the rotator through outer check rings. The novel rotary joint has the advantages of good sealability, no aging of the sealing piece, abrasion resistance, automatic compensation of abrasion and long service life.
Description
Technical field
The utility model relates to a kind of revolving joint, especially a kind of swivel joint that is widely used in industry air guides such as metal forming machinery, printing machinery, textile manufacturing machine, electroplating equipment wielding machine, engineering machinery and boats and ships, leads vacuum.
Background technique
Present known air guide, leading the vacuum swivel joint adopts O type rubber seal or other rubber seal to seal at the static and dynamic sealing place, this class seal form is that seal ring is installed in the circular trough, the decrement certain by rubber realizes sealing, when Sealing and another part are done when relatively rotating, because rubber produces big resistance to rotation surface, sealing part just can be generated heat, when rotational velocity is very high, it is more serious to generate heat, and temperature can raise rapidly, and seal ring is aging rapidly under higher temperature, there is not compressibility, medium just can leak from sealing part, befouling environment, loss resource.
The model utility content
The purpose of this utility model is to provide a kind of novel swivel joint, and its Sealing can not wear out, and is not easy to wear, wear automatic-compensation, the swivel joint of long service life.
For reaching above purpose, solution of the present utility model is:
This swivel joint comprises housing, solid of rotation, static seal, pressure spring, bearing.Described static seal is installed on pipe in the housing, static seal end face and solid of rotation end face are fitted becomes sealing surface, be provided with a described pressure spring in the static seal rear end, pressure spring is given static seal and pressure of solid of rotation surface of contact, make it to fit tightly, play good sealing effect, pressure spring just can play the wear automatic-compensation effect when static seal and solid of rotation wearing and tearing.
Housing is connected with static pipeline, and solid of rotation is connected with the equipment running shaft, has pair of bearings to form between housing and solid of rotation and supports, and this swivel joint is suitable for operation under the fast state.Static seal adopts graphite material to make, and good wear resistance and self lubricity are arranged, and solid of rotation adopts steel to make, and two kinds rely on end face seal to form good sealing to the mill material, and the relative movement time, long more sealability was good more, and long service life.
Bearing outer ring is fixed on the housing by an inner shield ring, and bearing inner race is fixed on the solid of rotation by an outer back-up ring, and simple in structure, dismounting is easy to maintenance.
Owing to adopted above technological scheme, the utlity model has following beneficial effect: fit into sealing surface and, play good sealing property by the spring pressing by static seal end face and solid of rotation end face; Because static seal is made by graphite and is made it have good wear resistance and self lubricity; And spring can play the wear compensation effect of static seal and solid of rotation, increases the service life.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment
Below in conjunction with the accompanying drawing illustrated embodiment the utility model is further described.
As shown in Figure 1, pressure spring 1 is installed in the interior pipe of housing 2, and static seal 3 end faces contact with solid of rotation 4 end faces and form sealing surface, because pressure spring 1 effect makes static seal 3 end faces be close to solid of rotation 4 end faces, favorable sealing property.Housing 2 is supported on the solid of rotation 4 by pair of bearings 5, to be suitable for operation under the fast state.Bearing 5 outer rings are fixed on the housing 2 by inner shield ring 6, and bearing 5 inner rings are fixed on the solid of rotation 4 by outer back-up ring 7.Because static seal 4 adopts graphite materials to make, and good self lubricity and wear resistance are arranged, the wearing and tearing redeeming of 1 pair of static seal 3 of pressure spring and solid of rotation 4 simultaneously, therefore good seal performance not only, and long service life.
The above-mentioned description to embodiment is can understand and use the utility model for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiments, and needn't pass through performing creative labour being applied among other embodiments in the General Principle of this explanation.Therefore, the utility model is not limited to the embodiment here, and those skilled in the art should be within protection domain of the present utility model for improvement and modification that the utility model is made according to announcement of the present utility model.
Claims (4)
1. novel swivel joint, it comprises housing, solid of rotation, it is characterized in that: it also comprises static seal, pressure spring, static seal is installed in the interior pipe of housing, its end face is fitted into sealing surface with the solid of rotation end face, and pressure spring is located at static seal rear end pressing static seal and solid of rotation.
2. novel swivel joint as claimed in claim 1 is characterized in that: this housing is supported on the solid of rotation by pair of bearings.
3. novel swivel joint as claimed in claim 2 is characterized in that: the outer ring of this bearing is fixed on the housing by inner shield ring, and its inner ring is fixed on the solid of rotation by outer back-up ring.
4. novel swivel joint as claimed in claim 1 is characterized in that: this static seal adopts graphite material to make; This solid of rotation adopts steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202083751U CN201487436U (en) | 2009-08-25 | 2009-08-25 | Novel rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202083751U CN201487436U (en) | 2009-08-25 | 2009-08-25 | Novel rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487436U true CN201487436U (en) | 2010-05-26 |
Family
ID=42426315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202083751U Expired - Fee Related CN201487436U (en) | 2009-08-25 | 2009-08-25 | Novel rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758980A (en) * | 2011-04-25 | 2012-10-31 | 湖北欧博汽车部件有限公司 | Novel rotary joint |
| CN106382425A (en) * | 2015-10-14 | 2017-02-08 | 深圳市艾特网能有限公司 | Door shaft communicating vessel |
-
2009
- 2009-08-25 CN CN2009202083751U patent/CN201487436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758980A (en) * | 2011-04-25 | 2012-10-31 | 湖北欧博汽车部件有限公司 | Novel rotary joint |
| CN106382425A (en) * | 2015-10-14 | 2017-02-08 | 深圳市艾特网能有限公司 | Door shaft communicating vessel |
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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: 20100526 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |