CN88210280U - Bellows forming seal set - Google Patents
Bellows forming seal set Download PDFInfo
- Publication number
- CN88210280U CN88210280U CN 88210280 CN88210280U CN88210280U CN 88210280 U CN88210280 U CN 88210280U CN 88210280 CN88210280 CN 88210280 CN 88210280 U CN88210280 U CN 88210280U CN 88210280 U CN88210280 U CN 88210280U
- Authority
- CN
- China
- Prior art keywords
- stifled
- pipe
- stem
- bellows
- seal
- 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.)
- Ceased
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- Diaphragms And Bellows (AREA)
Abstract
The utility model adopts a method that the outer surface sleeve of the core column of a positioning tube blank is internally and externally blocked to realize the effective seal of the end part of the positioning tube blank. The method is simple, convenient, and effective. A corrugated tube has forming used material saving, a few of processing procedures, and high production quality. The utility model adopts the optimum sealed device of a core column positioning and integral forming corrugated tube, which makes a small tonnage bed forming the corrugated tube with large opening diameter become possible.
Description
The utility model belongs to a kind of seal arrangement that pipe adopts the bellows hydraulic forming of stem stem location.
The bellows of being made by thin-wall metal pipe is a kind of elastic sealing elements, and it is widely used in fields such as aviation, oil, chemical industry, metallurgy and heat enginnering.In bellows hydraulic forming, stable for pressing in guaranteeing, seal arrangement is very important at present.Shanghai science tech publishing house " chapped pipe production " book introduction in the unitary moulding of bellows, at the pipe two ends, is blocked by sheet rubber, seal ring or seal ring respectively, and compressing with base plate more promptly is one of known sealing technique.In addition, it is tapered to also have the pipe two ends to expand earlier, adds the sealing of taper plug then; Seal at pipe two ends welded seal blanking cover in addition.Certainly, be to be placed in the mould that has guide pillar or in the specialized mould to be shaped entirely after the pipe sealing compresses, as the disclosed a kind of bellows manufacture method of Chinese patent CN85102493B, be exactly that the pipe two ends weld joint, by flange screw, then with the sealing of pad termination, at the specialized mould internal shaping.Above-mentioned these, to the few part of wave number still can, when the bellows wave number many, when axial dimension was longer, for preventing the part axial bending, guide pillar certainly will be thick, mold design, make and just not only to cause part inconvenience assembling, process mould complexity by complicated this, and the bellows quality is difficult for guaranteeing.For this reason, people propose pipe and locate the shaping bellows with stem stem." steel tubes production " has also been introduced a kind of plug that adopts and located, and is single-bellow continuous.Because seal ring is placed between plug and the pipe, very strict to the pipe requirement, the pipe of employing sheet metal bending, welding can't satisfy its requirement, and its sealing effect can not guarantee.
In order to overcome above-mentioned deficiency, solve the sealing problem that pipe adopts stem stem location shaping bellows, the utility model has adopted in the inside and outside stifled method of vertical or horizontal stem stem outside cover, is enclosed within outer stifled on the stem stem and has seal ring and be contained in pipe and outer interior stifled composition the between stifled by having seal ring.Wherein, inside and outside blocking up made by metallic material, the interior stifled seal ring that has at least, outer stifled two seal rings that have at least.
Most preferred embodiment of the present utility model is with reference to accompanying drawing, Fig. 1 is the liquid feeding end seal arrangement, (1) be pipe (2) for pipe with down between stifled seal ring (3) for stifled (4) in down under in, seal ring (5) between outer stifled be that stem stem (8) is that oil through (9) is a working platform for outer stifled (6) down for the seal ring (7) between outer stifled and stem stem down, Fig. 2 is the end sealing device, wherein (10) be snap ring (11) for seal ring (12) between the last outer stifled and stem stem for last outer stifled (13) in last, seal ring (14) is that last interior stifled (15) are seal ring between pipe and last interior the blocking up between blocking up outward.After pipe and upper and lower inside and outside stifled and module, pad finish by dress, down moving at the power body, snap ring (10) presses outer stifled (12), regulate needed axial dimension, pressure oil enters between pipe and the stem stem through oil through (8) then, set up the shaping oil pressure, carry out the shaping of bellows.
The utility model owing to adopt inside and outside stifledly, in the pipe outside seal, thereby has been realized the positiver sealing of pipe, withstand voltagely reaches every square centimeter more than 300 kilograms. Because the polishing to the woollen longitudinal seam of pipe is less demanding, less demanding to woollen end face, the bellows manufacturing procedure can greatly reduce. The bellows woolen cloth does not need oversize, thereby materials are economized most. The utility model is convenient, effective, and structure is very simple, and the assembling pipe is easy to. This device has guaranteed the side wave quality reliably, its stem stem can prevent the bellows axial bending, and this not only makes the bellows quality greatly improve, and mould is easy to manufacture, and realized the little tonnage machine tool heavy caliber bellows part that can be shaped, especially make things convenient for some not have the producer of large equipment. The utility model is to utilize internal surface of bloom to adopt stem stem location, the best sealing device of monolithic molding bellows. Behind more additional necessarieses, the special-purpose former of the bellows of use the design of sealing device, making can be realized automation, semi-automation with comparalive ease.
Claims (3)
1, a kind of seal arrangement that adopts vertical, horizontal stem stem location pipe, hydraulic forming bellows is characterized in that being contained in outer stifled on the stem stem and having interior stifled form of seal ring between being contained in pipe and blocking up outward by having seal ring.
2, according to claim 1 described seal arrangement, a stifled seal ring, outer stifled two seal rings that have at least of having at least in it is characterized in that.
3,, it is characterized in that inside and outside stifled make by metallic material according to claim 1 or 2 described seal arrangements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210280 CN88210280U (en) | 1988-03-14 | 1988-03-14 | Bellows forming seal set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210280 CN88210280U (en) | 1988-03-14 | 1988-03-14 | Bellows forming seal set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88210280U true CN88210280U (en) | 1988-11-02 |
Family
ID=4843788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88210280 Ceased CN88210280U (en) | 1988-03-14 | 1988-03-14 | Bellows forming seal set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88210280U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855341A (en) * | 2016-05-18 | 2016-08-17 | 洛阳双瑞特种装备有限公司 | Sealing structure for hydraulic molding of metal corrugated pipe |
| CN107695169A (en) * | 2017-09-24 | 2018-02-16 | 江苏双嘉液压机械制造有限公司 | A kind of high life hydraulic pressure injector |
-
1988
- 1988-03-14 CN CN 88210280 patent/CN88210280U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855341A (en) * | 2016-05-18 | 2016-08-17 | 洛阳双瑞特种装备有限公司 | Sealing structure for hydraulic molding of metal corrugated pipe |
| CN107695169A (en) * | 2017-09-24 | 2018-02-16 | 江苏双嘉液压机械制造有限公司 | A kind of high life hydraulic pressure injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CE01 | Termination of patent right |