CN203162161U - Sealing structure of rotating shaft in vacuum chamber - Google Patents
Sealing structure of rotating shaft in vacuum chamber Download PDFInfo
- Publication number
- CN203162161U CN203162161U CN 201220619606 CN201220619606U CN203162161U CN 203162161 U CN203162161 U CN 203162161U CN 201220619606 CN201220619606 CN 201220619606 CN 201220619606 U CN201220619606 U CN 201220619606U CN 203162161 U CN203162161 U CN 203162161U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- vacuum chamber
- sleeve
- length
- sleeve pipe
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model belongs to the technical field of sealing device, especially, relate to a seal structure of pivot in vacuum chamber. The sealing structure of the rotating shaft in the vacuum chamber comprises a sealing ring, a sleeve is arranged outside the sealing ring, and the length of the sleeve is at least as long as that of the sealing ring. In the case of high vacuum and high speed rotation, the construction of the shaft seal portion is particularly important, and the wear of the rotary seal portion is inevitable regardless of the method used. However, the sleeve is arranged outside the sealing ring part of the rotating shaft, the length of the sleeve is at least as long as that of the sealing ring, and the problem can be solved smoothly by replacing the sleeve.
Description
Technical field
The utility model belongs to the seal arrangement technical field, especially relates to the sealing configuration of rotating shaft in a kind of vacuum chamber.
Background technique
In the sealing configuration of rotating shaft, for the long-term condition of high vacuum degree that keeps in the vacuum chamber, the oil pipe side is inserted the high-speed rotating shaft inside in the vacuum chamber in the existing vacuum chamber, so the sealing configuration of rotating shaft will adopt oil sealing, and by two bearing supportings.This oil sealing must not have swing in the time of must satisfying rotation.But after the long-time continuous running, the rotating shaft sealing part is atmosphericly depressed taller speed rotation outward bearing one, so the especially severe that weares and teares, so cause vacuum leak.
The model utility content
The utility model can provide a kind of sealing configuration of the interior rotating shaft of vacuum chamber of good airproof performance.
In order to solve the problems of the technologies described above, provide following technological scheme: the sealing configuration of rotating shaft in the vacuum chamber, comprise seal ring, the seal ring outside is provided with sleeve pipe, and the length of the sleeve pipe length with seal ring at least is identical.
Adopt above-mentioned technological scheme, in the utility model, the sealing configuration of rotating shaft comprises seal ring in the vacuum chamber, and the seal ring outside is provided with sleeve pipe, and the length of the sleeve pipe length with seal ring at least is identical.In the occasion that high vacuum is rotated at a high speed, no matter the structure particular importance of shaft sealing part uses any way, and the wearing and tearing of rotary seal part all are that inequality is avoided.But be provided with sleeve pipe in rotating shaft sealing circle portion of external, the length of the sleeve pipe length with seal ring at least is identical, and using more, the way of casing replacing can more successfully address this problem.
Further, described sleeve surface is provided with carburized case, and the surface hardness of sleeve pipe is higher like this, and is not easy to wear, prolongs the working life of sleeve pipe.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of the sealing configuration of rotating shaft in the utility model vacuum chamber.
Embodiment
As shown in Figure 1: the sealing configuration of rotating shaft in the vacuum chamber, comprise seal ring 1, seal ring 1 outside is provided with sleeve pipe 2, and the length of sleeve pipe 2 length with seal ring 1 at least is identical, and sleeve pipe 2 surfaces are provided with carburized case 3.
In the present embodiment, the sealing configuration of rotating shaft comprises seal ring 1 in the vacuum chamber, and seal ring 1 outside is provided with sleeve pipe 2, and the length of sleeve pipe 2 length with seal ring 1 at least is identical.In the occasion that high vacuum is rotated at a high speed, no matter the structure particular importance of shaft sealing part uses any way, and the wearing and tearing of rotary seal part all are that inequality is avoided.But be provided with sleeve pipe 2 in rotating shaft sealing circle 1 outside, the length of sleeve pipe 2 length with seal ring 1 at least is identical, and using more, the way of casing replacing 2 can more successfully address this problem; Described sleeve pipe 2 surfaces are provided with carburized case 3 simultaneously, and the surface hardness of sleeve pipe 2 is higher like this, and is not easy to wear, prolong the working life of sleeve pipe 2.
Above-described only is preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; should be considered as protection domain of the present utility model, these can not influence effect and practical applicability that the utility model is implemented yet.
Claims (1)
1. the sealing configuration of rotating shaft in the vacuum chamber comprises seal ring, and it is characterized in that: the seal ring outside is provided with sleeve pipe, and the length of the sleeve pipe length with seal ring at least is identical, and described sleeve surface is provided with carburized case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220619606 CN203162161U (en) | 2012-11-21 | 2012-11-21 | Sealing structure of rotating shaft in vacuum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220619606 CN203162161U (en) | 2012-11-21 | 2012-11-21 | Sealing structure of rotating shaft in vacuum chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203162161U true CN203162161U (en) | 2013-08-28 |
Family
ID=49023346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220619606 Expired - Fee Related CN203162161U (en) | 2012-11-21 | 2012-11-21 | Sealing structure of rotating shaft in vacuum chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203162161U (en) |
-
2012
- 2012-11-21 CN CN 201220619606 patent/CN203162161U/en not_active Expired - Fee Related
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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: 20130828 Termination date: 20131121 |