CN104197020A - Radially and dynamically adjustable contact-type sealing device for shaft end - Google Patents
Radially and dynamically adjustable contact-type sealing device for shaft end Download PDFInfo
- Publication number
- CN104197020A CN104197020A CN201410405059.9A CN201410405059A CN104197020A CN 104197020 A CN104197020 A CN 104197020A CN 201410405059 A CN201410405059 A CN 201410405059A CN 104197020 A CN104197020 A CN 104197020A
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- China
- Prior art keywords
- sealing
- adjustable contact
- seal ring
- radially
- extension spring
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Abstract
The invention discloses a radially and dynamically adjustable contact-type sealing device for the shaft end. The device is used for sealing a rotary shaft and comprises a sealing ring, an extension spring and an installing seat, wherein the extension spring is arranged on the sealing ring, and the sealing ring is nested in the installing seat and then is assembled on the rotary shaft to be sealed. The radially and dynamically adjustable contact-type sealing is adopted in the device, a gap between the rotary shaft and the sealing ring is not influenced by the temperature, automatic adjustment is performed under the effect of the peripheral extension spring with diameter change of the rotary shaft, and the device is kept to be in contact with the rotary shaft. In addition, after the radially and dynamically adjustable contact-type sealing device works for a long period of time, the sealing ring is not abraded due to friction between the rotary shaft and sealing ring, and further leakage prevention is strengthened.
Description
Technical field
The present invention relates to a kind of radially dynamic adjustable contact type sealing device for axle head, belong to rotor shaft sealing technical field.
Background technique
At present, in field of sealing technology, shaft end seal, what generally use is contactless and contact seal.Adopt noncontact seal, owing to being contactless, therefore have gap, sealing effect will be influenced so; And employing contact seal, due to the phenomenon of expanding with heat and contract with cold that rotating shaft exists circular runout and temperature influence to produce, cause moving a period of time after contact type sealing device will produce wearing and tearing, cause sealability to decline.When gas, the wet goods medium of sealing have, burn into is inflammable, poisonous, You Haishi, just need to have good sealability to the axle head of rotor, avoids these harmful gases to leak in atmosphere.For more complicated mechanical seal, magnet fluid sealing etc., due to expensive, high volume applications is very uneconomic in shaft end seal field.
Use traditional contact seal and noncontact seal, the diameter of axle can expand with heat and contract with cold along with the variation of temperature in the ordinary course of things, thereby the seal clearance between sealing and axle is changed, and reduces sealing effect.
Summary of the invention
One object of the present invention is to provide a kind of radially dynamic adjustable contact seal for axle head, and it can regulate along with the root diameter that beating of axle causes with being affected by thermal expansion and contraction changes automatically, thereby ensures to contact all the time between sealing and axle.
Technological scheme of the present invention is as follows:
A kind of radially dynamic adjustable contact type sealing device for axle head, described device is for sealing pivot, described device comprises seal ring, extension spring and fitting seat, on described seal ring, extension spring is set, described seal ring is nested in fitting seat, and then is assembled in the rotating shaft that needs sealing.
Above-mentioned seal ring is segmental structure, and described seal ring is made up of two above sealing blocks.
Above-mentioned sealing block has 11.
Above-mentioned sealing block is an arc body, the groove for placing extension spring is offered in body upper end, one end sidepiece of described body is offered a circular groove, the other end arrange one with the identical boss of groove, the groove of described sealing block engages to be connected with the boss of adjacent seals piece.
The beneficial effect that the present invention reaches:
The present invention adopts radially dynamic adjustable contact seal, and the gap between rotating shaft and seal ring will not be subject to the impact of temperature, under the effect of circumferential tension spring, the variation of the diameter with rotating shaft is adjusted automatically, keeps contacting with rotating shaft; And after working long hours, seal ring can not produce because of there is grazing between rotating shaft and seal ring wearing and tearing yet and further add strong leakage.
Brief description of the drawings
Fig. 1 is the scheme of installation of apparatus of the present invention;
Fig. 2 is the schematic diagram of seal ring of the present invention and extension spring;
Fig. 3 is the schematic diagram of sealing block in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples are only for technological scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of radially dynamic adjustable contact type sealing device for axle head, device is for sealing pivot 3, device comprises seal ring, extension spring 2 and fitting seat 4, extension spring 2 is set on seal ring, seal ring is nested in fitting seat 4, and then is assembled in the rotating shaft 3 that needs sealing.
Above-mentioned seal ring is segmental structure, and seal ring is made up of two above sealing blocks 1.
Above-mentioned sealing block 1 has 11.
Above-mentioned sealing block 1 is an arc body, the groove 11 for placing extension spring is offered in body upper end, one end sidepiece of body is offered a circular groove 12, the other end arrange one with the identical boss 13 of groove 12, the groove 12 of sealing block 1 is connected with 13 engagings of the boss of adjacent seals piece 1.
The present invention adopts radially dynamic adjustable contact seal, and the gap between rotating shaft 4 and seal ring will not be subject to the impact of temperature, under the effect of circumferential tension spring 2, the variation of the diameter with rotating shaft 4 is adjusted automatically, keeps contacting with rotating shaft; And after working long hours, seal ring can not produce because of there is grazing between rotating shaft 4 and seal ring wearing and tearing yet and further add strong leakage.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. the radially dynamic adjustable contact type sealing device for axle head, it is characterized in that: described device is for sealing pivot, described device comprises seal ring, extension spring and fitting seat, on described seal ring, extension spring is set, described seal ring is nested in fitting seat, and then is assembled in the rotating shaft that needs sealing.
2. a kind of radially dynamic adjustable contact type sealing device for axle head according to claim 1, is characterized in that: described seal ring is segmental structure, and described seal ring is made up of two above sealing blocks.
3. a kind of radially dynamic adjustable contact type sealing device for axle head according to claim 2, is characterized in that: described sealing block has 11.
4. a kind of radially dynamic adjustable contact type sealing device for axle head according to claim 2, it is characterized in that: described sealing block is an arc body, the groove for placing extension spring is offered in body upper end, one end sidepiece of described body is offered a circular groove, the other end arrange one with the identical boss of groove, the groove of described sealing block engages to be connected with the boss of adjacent seals piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410405059.9A CN104197020A (en) | 2014-08-15 | 2014-08-15 | Radially and dynamically adjustable contact-type sealing device for shaft end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410405059.9A CN104197020A (en) | 2014-08-15 | 2014-08-15 | Radially and dynamically adjustable contact-type sealing device for shaft end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104197020A true CN104197020A (en) | 2014-12-10 |
Family
ID=52082361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410405059.9A Pending CN104197020A (en) | 2014-08-15 | 2014-08-15 | Radially and dynamically adjustable contact-type sealing device for shaft end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104197020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869484A (en) * | 2019-01-11 | 2019-06-11 | 中国船舶重工集团公司第七二四研究所 | A kind of large-scale antenna dome sealing ring of segmented |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD290557A7 (en) * | 1989-07-20 | 1991-06-06 | Energiewerke Schwarze Pumpe Ag,De | SELF-ADJUSTING ADJUSTING AXIAL SEALING SEAL, PREFERABLY FOR SEALING THE STAMP SUPPORT ON BRIKETTPRESSEN |
| EP0443579A2 (en) * | 1990-02-21 | 1991-08-28 | EG&G SEALOL, INC. | Self-contained sealing ring assembly |
| US6220603B1 (en) * | 1998-07-13 | 2001-04-24 | Ronald Earl Brandon | Non retractable segmented packing ring for fluid turbines having special springs to reduce forces during shaft rubbing |
| DE102007016104A1 (en) * | 2007-04-03 | 2008-10-09 | Siemens Ag | Sealing ring for turbomachinery |
| US20090020959A1 (en) * | 2005-04-20 | 2009-01-22 | Bill Shaw | Segmented packing ring |
| CN101424343A (en) * | 2007-10-31 | 2009-05-06 | 贺尔碧格压缩机技术控股有限公司 | Multipart packing ring |
| CN202719139U (en) * | 2012-07-09 | 2013-02-06 | 中材淄博重型机械有限公司 | Novel cast sealing ring |
| CN204004412U (en) * | 2014-08-15 | 2014-12-10 | 江苏透平密封高科技有限公司 | A kind of radially dynamic adjustable contact type sealing device for axle head |
-
2014
- 2014-08-15 CN CN201410405059.9A patent/CN104197020A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD290557A7 (en) * | 1989-07-20 | 1991-06-06 | Energiewerke Schwarze Pumpe Ag,De | SELF-ADJUSTING ADJUSTING AXIAL SEALING SEAL, PREFERABLY FOR SEALING THE STAMP SUPPORT ON BRIKETTPRESSEN |
| EP0443579A2 (en) * | 1990-02-21 | 1991-08-28 | EG&G SEALOL, INC. | Self-contained sealing ring assembly |
| US6220603B1 (en) * | 1998-07-13 | 2001-04-24 | Ronald Earl Brandon | Non retractable segmented packing ring for fluid turbines having special springs to reduce forces during shaft rubbing |
| US20090020959A1 (en) * | 2005-04-20 | 2009-01-22 | Bill Shaw | Segmented packing ring |
| DE102007016104A1 (en) * | 2007-04-03 | 2008-10-09 | Siemens Ag | Sealing ring for turbomachinery |
| CN101424343A (en) * | 2007-10-31 | 2009-05-06 | 贺尔碧格压缩机技术控股有限公司 | Multipart packing ring |
| CN202719139U (en) * | 2012-07-09 | 2013-02-06 | 中材淄博重型机械有限公司 | Novel cast sealing ring |
| CN204004412U (en) * | 2014-08-15 | 2014-12-10 | 江苏透平密封高科技有限公司 | A kind of radially dynamic adjustable contact type sealing device for axle head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869484A (en) * | 2019-01-11 | 2019-06-11 | 中国船舶重工集团公司第七二四研究所 | A kind of large-scale antenna dome sealing ring of segmented |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 210046, Nanjing, Qixia District, Jiangsu Province, Gan home East 108, Nanjing Golden Port (state) science and Technology Park 6 Applicant after: Jiangsu Turbine Seal High-Technology Co., Ltd. Address before: 210046, Nanjing, Qixia District, Jiangsu Province, Gan home East 108, Nanjing Golden Port (state) science and Technology Park 6 Applicant before: Jiangsu Turbine Seal High-Technology Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY CO., LTD. TO: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY CO., LTD. |
|
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gu Wenwu Inventor after: Zuo Fei Inventor after: Shen Xiannian Inventor after: Xu Yong Inventor before: Gu Wenwu Inventor before: Shen Xiannian Inventor before: Xu Yong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GU WENWU SHEN XIANNIAN XU YONG TO: GU WENWU ZUO FEI SHEN XIANNIAN XU YONG |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141210 |