CN102619989A - Back-to-back type tailstock-sharing weld metal bellows seal - Google Patents
Back-to-back type tailstock-sharing weld metal bellows seal Download PDFInfo
- Publication number
- CN102619989A CN102619989A CN2012100577541A CN201210057754A CN102619989A CN 102619989 A CN102619989 A CN 102619989A CN 2012100577541 A CN2012100577541 A CN 2012100577541A CN 201210057754 A CN201210057754 A CN 201210057754A CN 102619989 A CN102619989 A CN 102619989A
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- tailstock
- metal bellows
- bellows seal
- weld metal
- shared
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Abstract
The invention discloses a back-to-back type tailstock-sharing weld metal bellows seal. A shaft sleeve is sleeved on a shaft; two groups of metal bellows seals which are symmetrically placed back to back are sleeved on the outer side of the shaft sleeve; each group of metal bellows seal sequentially consists of an end cover, a stationary ring and a weld metal bellows seal head from outside to inside; each weld metal bellows seal head sequentially consists of a moving ring seat, a bellows and a tailstock; one tailstock is shared by the two groups of weld metal bellows seal heads; and a drive screw is mounted on the tailstock and passes through the tailstock to be propped against the shaft sleeve. The back-to-back type tailstock-sharing weld metal bellows seal has the advantages that the structure is simple, the assembly, the disassembly and the replacement are convenient, two parts of bellows seal heads are simultaneously welded on the same tailstock to form an integrated structure, and by adopting the structure, the axial space is shortened and enough space is reserved for the designing of other parts (the static rings, the shaft sleeve or the end covers).
Description
Technical field
The present invention relates to the mechanical sealing technology field, be specifically related to the shared tailstock welded metal bellow sealing of a kind of formula back-to-back.
Background technique
The sealing of Double End welded metal bellow is used very extensive at present; And the structure of formula back-to-back as the one of which to be the rotary welded metal bellow of two covers arrange back-to-back, as shown in Figure 1 because the restriction of axial dimension; Sometimes this arrangement makes axial space become very narrow and small; Cause other parts such as stationary ring, axle sleeve or end cap must select nonstandard design, increased unnecessary loss, also brought difficulty to standardization effort.
Summary of the invention
The objective of the invention is to overcome above-mentioned not enough problem, provide a kind of formula back-to-back shared tailstock welded metal bellow sealing.
The present invention for realizing the technological scheme that above-mentioned purpose adopted is: the shared tailstock welded metal bellow sealing of a kind of formula back-to-back; Be with axle sleeve on the axle; The axle sleeve outside is with two groups of symmetrical back-to-back placed metal sylphon seals; Said every group of wavy metal seal of tube is made up of end cap, stationary ring, welded metal bellow sealing head from outside to inside successively, and said welded metal bellow sealing head is made up of rotating seat, bellows, tailstock successively, the shared tailstock of two bond pads metal bellows sealing heads; On the said tailstock drive screw is installed, said drive screw is passed tailstock and is withstood on the axle sleeve.
Said bellows welding, said bellows opposite side and the rotating seat welding of said tailstock and both sides.
Stationary ring O type circle is installed between said stationary ring and the end cap and is installed in the stop pin on the end cap.
Rotating ring O type circle is installed between said tailstock and the axle sleeve.
Characteristics of the present invention are: simple in structure; Be convenient to loading and unloading and replacing, two-part sylphon seal head is welded on the same tailstock simultaneously, be integrally formed structure; This structure shortens axial space, has reserved enough spaces for the design of other parts (stationary ring, axle sleeve or end cap).
Description of drawings
Fig. 1 is the existing welded metal bellow of formula back-to-back sealing;
Fig. 2 is a structural representation of the present invention.
Wherein: 1, axle 2, axle sleeve 3, stop pin 4, stationary ring O type circle 5, stationary ring 6, rotating seat 7, bellows 8, rotating ring O type circle 9, tailstock 10, drive screw 11, end cap.
Embodiment
As shown in Figure 2, the present invention is the shared tailstock welded metal bellow sealing of a kind of formula back-to-back, on axle 1, is with axle sleeve 2; Axle sleeve 2 outsides are with two groups of symmetrical back-to-back placed metal sylphon seals; Said every group of wavy metal seal of tube is made up of end cap 11, stationary ring 5, welded metal bellow sealing head from outside to inside successively, and said welded metal bellow sealing head is made up of rotating seat 6, bellows 7, tailstock 9 successively, two groups of shared tailstocks 9 of described welded metal bellow sealing head; On the said tailstock 9 drive screw 10 is installed; Said drive screw 10 is passed tailstock 9 and is withstood on the axle sleeve 2, stationary ring O type circle 4 is installed between said stationary ring 5 and the end cap 11 and is installed in the stop pin 3 on the end cap 11, and rotating ring O type circle 8 is installed between said tailstock 9 and the axle sleeve 2; Said tailstock 9 welds with the said bellows 7 of both sides; Said bellows 7 opposite sides weld with rotating seat 6 again, finally form the welded metal bellow sealing head of shared tailstock, the shared tailstock 9 of two bond pads metal bellows sealing heads; Axial space is shortened, reserved enough spaces for the design of stationary ring 5, axle sleeve 2, end cap 11.
Driven by motor axle 1 rotation during work; Axle 1 is passed to axle sleeve 2 with driving force; The welded metal bellow sealing head is by the drive screw 10 transmissions rotation that withstands on the axle sleeve 2, and stationary ring 5 is then lived by 3 groups of stop pins that are installed on the end cap 11, prevents relatively rotating between stationary ring 5 and the end cap 11.
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 equal to replacement or change according to technological scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (4)
1. shared tailstock welded metal bellow sealing of formula back-to-back; Be with axle sleeve (2) on the axle (1); Axle sleeve (2) outside is with two groups of symmetrical back-to-back placed metal sylphon seals; Said every group of wavy metal seal of tube is made up of end cap (11), stationary ring (5), welded metal bellow sealing head from outside to inside successively; Said welded metal bellow sealing head is made up of rotating seat (6), bellows (7), tailstock (9) successively; It is characterized in that: the two shared tailstocks of bond pads metal bellows sealing head (9), drive screw (10) is installed on the said tailstock (9), said drive screw (10) is passed tailstock (9) and is withstood on the axle sleeve (2).
2. the shared tailstock welded metal bellow sealing of formula back-to-back as claimed in claim 1 is characterized in that: said tailstock (9) welds with the said bellows (7) of both sides, said bellows (7) opposite side and rotating seat (6) welding.
3. the shared tailstock welded metal bellow sealing of formula back-to-back as claimed in claim 1 is characterized in that: stationary ring O type circle (4) is installed between said stationary ring (5) and the end cap (11) and is installed in the stop pin (3) on the end cap (11).
4. the shared tailstock welded metal bellow sealing of formula back-to-back as claimed in claim 1 is characterized in that: between said tailstock (9) and the axle sleeve (2) rotating ring O type circle (8) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100577541A CN102619989A (en) | 2012-03-07 | 2012-03-07 | Back-to-back type tailstock-sharing weld metal bellows seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100577541A CN102619989A (en) | 2012-03-07 | 2012-03-07 | Back-to-back type tailstock-sharing weld metal bellows seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102619989A true CN102619989A (en) | 2012-08-01 |
Family
ID=46560108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100577541A Pending CN102619989A (en) | 2012-03-07 | 2012-03-07 | Back-to-back type tailstock-sharing weld metal bellows seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619989A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0163552A1 (en) * | 1984-06-01 | 1985-12-04 | Durametallic Corporation | Mechanical seal assembly with coolant circulation structure |
| US5924697A (en) * | 1997-03-03 | 1999-07-20 | Durametallic Corporation | Double gas seal with bellows supported by backing and support rings |
| US20090212503A1 (en) * | 2006-04-25 | 2009-08-27 | Cheng-Shiou Huang | Mechanical Seal |
| CN201351631Y (en) * | 2008-12-16 | 2009-11-25 | 神华集团有限责任公司 | Mechanical sealing device for high-temperature coal pulp pump |
| CN201827365U (en) * | 2010-10-19 | 2011-05-11 | 牛红霞 | Assembly type two-end face mechanical sealing device |
| CN102297152A (en) * | 2011-08-04 | 2011-12-28 | 东营海森密封技术有限责任公司 | Oil film lubrication non-contact serial mechanical seal device for high-temperature oil pump |
-
2012
- 2012-03-07 CN CN2012100577541A patent/CN102619989A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0163552A1 (en) * | 1984-06-01 | 1985-12-04 | Durametallic Corporation | Mechanical seal assembly with coolant circulation structure |
| US5924697A (en) * | 1997-03-03 | 1999-07-20 | Durametallic Corporation | Double gas seal with bellows supported by backing and support rings |
| US20090212503A1 (en) * | 2006-04-25 | 2009-08-27 | Cheng-Shiou Huang | Mechanical Seal |
| CN201351631Y (en) * | 2008-12-16 | 2009-11-25 | 神华集团有限责任公司 | Mechanical sealing device for high-temperature coal pulp pump |
| CN201827365U (en) * | 2010-10-19 | 2011-05-11 | 牛红霞 | Assembly type two-end face mechanical sealing device |
| CN102297152A (en) * | 2011-08-04 | 2011-12-28 | 东营海森密封技术有限责任公司 | Oil film lubrication non-contact serial mechanical seal device for high-temperature oil pump |
Non-Patent Citations (2)
| Title |
|---|
| 何先有: "波纹管机械密封在聚合釜上的应用", 《设备管理与维修》 * |
| 刘建华: "真空用机械密封探析", 《机械》 * |
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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: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Applicant after: DALIAN HUAYANG SEALS CO., LTD. Address before: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Applicant before: Dalian Huayang Seals Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN HUAYANG GUANGDA SEALING CO., LTD. TO: DALIAN HUAYANG SEALS CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |