CN102537354A - Combined rotary sealing structure for SF6 (sulfur hexafluoride) gas - Google Patents
Combined rotary sealing structure for SF6 (sulfur hexafluoride) gas Download PDFInfo
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- CN102537354A CN102537354A CN2012100318890A CN201210031889A CN102537354A CN 102537354 A CN102537354 A CN 102537354A CN 2012100318890 A CN2012100318890 A CN 2012100318890A CN 201210031889 A CN201210031889 A CN 201210031889A CN 102537354 A CN102537354 A CN 102537354A
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- Prior art keywords
- runddichtringo
- sealing structure
- gas
- axle sleeve
- axle
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Abstract
The invention discloses a combined rotary sealing structure for SF6 (sulfur hexafluoride) gas, which comprises a shaft provided with a shaft sleeve. The shaft sleeve and the shaft are integrally mounted in a sealing flange, and an O-shaped sealing ring and an X-shaped sealing ring are arranged between the shaft sleeve and the sealing flange. As the front end of the sealing structure is provided with the X-shaped sealing ring, silicone greases can be properly filled in a groove of the X-shaped sealing ring, and the performance of the sealing structure is better than that of a sealing structure with a single O-shaped sealing ring. Besides, the sealing rings are prevented from being damaged by a shaft hole when the shaft is mounted in the shaft hole.
Description
Technical field
The present invention relates to a kind of SF6 gas rotary seal technology, relate in particular to a kind of combined type SF6 gas rotational sealing structure.
Background technique
As shown in Figure 1; In the existing technology, the rotatingshaft sealing means of the SF6 gas of assembling generally adopts the sealing means of axle sleeve+O RunddichtringO, and its shortcoming is to guaranteeing that tightness adopts multi-layer sealed; Component processing technology level is required high; And when being encased in axis hole, often assembling difficulty because of the off-centre of axle, the result causes the surface failure of O RunddichtringO, thereby influences sealability.
Summary of the invention
The purpose of this invention is to provide the easy combined type SF6 gas rotational sealing structure of a kind of good seal performance and assembling.
The objective of the invention is to realize through following technological scheme:
Combined type SF6 gas rotational sealing structure of the present invention comprises axle, and said axle is provided with axle sleeve, and said axle sleeve installs in the sealing flange with axle integral body, is provided with the two seals circle between said axle sleeve and the sealing flange, is respectively O RunddichtringO and X RunddichtringO.
Technological scheme by the invention described above provides can be found out; Combined type SF6 gas rotational sealing structure provided by the invention; Owing to be provided with the two seals circle between axle sleeve and the sealing flange; Be respectively O RunddichtringO and X RunddichtringO, better than one of independent use or multiple tracks O type circle sealability, when the axle sleeve load hole, avoided the axis hole place that seal ring is caused damage simultaneously.
Description of drawings
Fig. 1 is the schematic representation of combined type SF6 gas rotational sealing structure of the prior art;
The schematic representation of the combined type SF6 gas rotational sealing structure that Fig. 2 provides for the embodiment of the invention.
Among the figure: 1, X RunddichtringO, 2, the O RunddichtringO, 3, axle sleeve, 4, axle, 5, sealing flange.
Embodiment
To combine accompanying drawing that the embodiment of the invention is done to describe in detail further below.
Combined type SF6 gas rotational sealing structure of the present invention, its preferable embodiment is as shown in Figure 2:
Comprise axle, said axle is provided with axle sleeve, and said axle sleeve installs in the sealing flange with axle integral body, is provided with the two seals circle between said axle sleeve and the sealing flange, is respectively O RunddichtringO and X RunddichtringO.
Said X RunddichtringO is located at the outside of said O RunddichtringO.
Have the two seals groove on the outer surface of said axle sleeve, said O RunddichtringO and X RunddichtringO branch are located in the two seals groove.
Be filled with silicone grease in the groove of said X RunddichtringO.
Combined type SF6 gas rotational sealing structure of the present invention; On the basis of traditional axle sleeve+O RunddichtringO; Again design seal groove, its front end adopts the X RunddichtringO, and advantage is: the groove of X RunddichtringO can be filled silicone grease in right amount; Better than O type circle sealability,, axle avoided the axis hole place that seal ring is caused damage when packing into simultaneously.
In the embodiments of the invention; The sealing flange of packing into after the pattern of axle sleeve+O RunddichtringO+X RunddichtringO can whole have been assembled; The front end of flange installs the X RunddichtringO additional because axle sleeve is packed into, and the O RunddichtringO is still adopted in its rear end, can guarantee after axle sleeve is packed into that rotation is flexible and sealability is better; X RunddichtringO groove is filled an amount of sealing silicone grease simultaneously, play lubrication on the one hand, but SF6 gas seal performance is better on the other hand.
Use the present invention, when axle sleeve is packed the axis hole of sealing flange into, because the edge of X circle is softer, seal ring is not caused damage in the time of can guaranteeing to pack into, owing to guaranteed the coaxality of axle with axis hole, the O RunddichtringO of rear end can be packed into easily when packing a part into.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. a combined type SF6 gas rotational sealing structure comprises axle, and said axle is provided with axle sleeve; Said axle sleeve installs in the sealing flange with axle integral body; It is characterized in that, be provided with the two seals circle between said axle sleeve and the sealing flange, be respectively O RunddichtringO and X RunddichtringO.
2. combined type SF6 gas rotational sealing structure according to claim 1 is characterized in that said X RunddichtringO is located at the outside of said O RunddichtringO.
3. combined type SF6 gas rotational sealing structure according to claim 1 and 2 is characterized in that, has the two seals groove on the outer surface of said axle sleeve, and said O RunddichtringO and X RunddichtringO branch are located in the two seals groove.
4. combined type SF6 gas rotational sealing structure according to claim 3 is characterized in that, is filled with silicone grease in the groove of said X RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100318890A CN102537354A (en) | 2012-02-13 | 2012-02-13 | Combined rotary sealing structure for SF6 (sulfur hexafluoride) gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100318890A CN102537354A (en) | 2012-02-13 | 2012-02-13 | Combined rotary sealing structure for SF6 (sulfur hexafluoride) gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537354A true CN102537354A (en) | 2012-07-04 |
Family
ID=46345000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100318890A Pending CN102537354A (en) | 2012-02-13 | 2012-02-13 | Combined rotary sealing structure for SF6 (sulfur hexafluoride) gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537354A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641259A (en) * | 2016-12-15 | 2017-05-10 | 西南技术物理研究所 | Double-layer sealing structure and sealing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064438A (en) * | 1991-02-28 | 1992-09-16 | 株式会社小松制作所 | The filling detecting means of injection moulding forming machine |
| CN1064438C (en) * | 1996-01-08 | 2001-04-11 | 肥城市磷铵厂 | Novel sealing structure of roots blower |
| CN202531838U (en) * | 2012-02-13 | 2012-11-14 | 北京华东电气股份有限公司 | Combined type rotary seal structure for SF6 |
-
2012
- 2012-02-13 CN CN2012100318890A patent/CN102537354A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064438A (en) * | 1991-02-28 | 1992-09-16 | 株式会社小松制作所 | The filling detecting means of injection moulding forming machine |
| CN1064438C (en) * | 1996-01-08 | 2001-04-11 | 肥城市磷铵厂 | Novel sealing structure of roots blower |
| CN202531838U (en) * | 2012-02-13 | 2012-11-14 | 北京华东电气股份有限公司 | Combined type rotary seal structure for SF6 |
Non-Patent Citations (4)
| Title |
|---|
| 朱显富: "《变电检修》", 28 February 2010, 中国水利水电出版社 * |
| 谢德林: "《城乡电网建设改造新技术与新设备应用手册》", 1 November 1999 * |
| 高亚娟等: "SF6气体绝缘设备用O型密封结构对比分析", 《高压电器》 * |
| 黎斌: "《SF6高压电器设计》", 30 January 2010, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641259A (en) * | 2016-12-15 | 2017-05-10 | 西南技术物理研究所 | Double-layer sealing structure and sealing method |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120704 |