CN1687618A - Sealing arrangement for pipe expanding machine - Google Patents
Sealing arrangement for pipe expanding machine Download PDFInfo
- Publication number
- CN1687618A CN1687618A CN 200510043677 CN200510043677A CN1687618A CN 1687618 A CN1687618 A CN 1687618A CN 200510043677 CN200510043677 CN 200510043677 CN 200510043677 A CN200510043677 A CN 200510043677A CN 1687618 A CN1687618 A CN 1687618A
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- China
- Prior art keywords
- sealing head
- seal ring
- press section
- sealing
- base portion
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Abstract
The invention discloses the sealing device for the tube expansion machine use. Because the outside diameter of the seal loop is smaller than the inside diameter of the tube waiting for expansion, so the seal loop cannot be easily cut by the ends of the tubes when the seal head is inserted into the tubes; when the seal head is inserted, pull the squeezing part of the head, and the surrounding slot formed by the seal head base and the extruding part becomes narrow to extrud the seal loop and to enlarge the outside diameter of the seal loop.
Description
Technical field
The present invention relates to a kind of seal arrangement, relate in particular to a kind of seal arrangement that is used for electric tube expander.
Background technique
Present compound radiator has obtained widely to use, and the basic structure of compound radiator is that the metallic material with two kinds of unlike materials closely combines, and can guarantee good heat transfer and heat conduction, and weight is light, working life is longer.A kind of expansion tube method is to utilize hydraulic principle, fills into high pressure water under the prerequisite sealed at both ends by expand tube, closely cooperates thereby utilize high pressure water to be increased with composite members by the expand tube size, and the mach composite members of hydraulic expanding tube is fitted firmly.The seal arrangement of at present used hydraulic expanding tube machine as shown in Figure 3, it comprises can insert the sealing head for the treatment of expand tube spare 5 ends and be arranged on the interior seal ring 3 of sealing head annular groove, the external diameter of seal ring must could guarantee reliable expand tube in the course of the work greater than the internal diameter for the treatment of expand tube spare; But owing to repeat expand tube, sealing head inserts and extracts out frequent, and seal ring is easy to be caused seal ring to lose efficacy by the end of pipe fitting incised wound, and the seal ring of having to frequently change had so both improved cost of production, had also reduced manufacturing efficiency.
Summary of the invention
Technical problem to be solved by this invention provides a kind of sealing arrangement for pipe expanding machine that improves seal ring working life and good sealing effect.
For achieving the above object, technological scheme of the present invention is: sealing arrangement for pipe expanding machine comprises can insert the sealing head for the treatment of expand tube spare end and the seal ring that is arranged in the sealing head annular groove, described sealing head is in the annular groove that seal ring is installed, be two-part away from sealing head free-ended side punishment, it comprises the sealing head base portion, the sealing head press section that includes the bottom surface and the another side of the annular groove that seal ring is installed, the part of the bottom of the conduct installation seal ring annular groove of sealing head press section extends through the sealing head base portion and reaches outside the sealing head base portion, the sealing head press section can be with respect to the motion of sealing head base portion, and the external diameter of seal ring is less than the internal diameter for the treatment of expand tube spare.
As a kind of improvement, described sealing head press section is provided with and can be communicated with the liquid filling hole for the treatment of that expand tube spare is inside and outside.
Owing to adopt technique scheme, the external diameter of seal ring is less than the internal diameter for the treatment of expand tube spare, whole sealing head is inserted into when treating expand tube spare end, seal ring just is not easy to be hurt by the end of pipe fitting: after sealing head inserts and puts in place, pulling sealing head press section, the seal ring annular groove that is formed by sealing head base portion and sealing head press section narrows down, thus the crush seal circle, make the external diameter of seal ring become big, so reach the purpose of sealing.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is that the whole sealing head of the embodiment of the invention is inserted into the schematic representation when treating expand tube spare end;
Fig. 3 is the structural representation of background technique of the present invention.
Embodiment
As shown in Figure 1; sealing arrangement for pipe expanding machine; comprise and to insert the sealing head for the treatment of expand tube spare 5 ends and be arranged on the interior seal ring 3 of sealing head annular groove; described sealing head is in the annular groove that seal ring 3 is installed; be two-part away from sealing head free-ended side punishment; it comprises sealing head base portion 1; the sealing head press section 2 that includes the bottom surface and the another side of the annular groove that seal ring 3 is installed; the part of the bottom of the conduct installation seal ring annular groove of sealing head press section extends through sealing head base portion 1 and reaches outside the sealing head base portion 1; sealing head press section 2 can be with respect to 1 motion of sealing head base portion; the external diameter of seal ring 3 is less than the internal diameter for the treatment of expand tube spare 5; the external diameter of seal ring 3 does not preferably exceed to be installed outside the seal ring annular groove, can protect seal ring to be without prejudice better like this.
When the present invention uses on electric tube expander, be positioned at and treat that expand tube spare two ends use one respectively; For to treating that expand tube spare inside provides pressure expand tube medium, described sealing head press section 2 is provided with and can be communicated with the liquid filling hole 4 for the treatment of that expand tube spare 5 is inside and outside.
Working procedure of the present invention is as follows: described sealing head base portion 1 drive seal ring 3 and sealing head press section 2 are inserted into treats expand tube spare end, the insertion post-tensioning motive sealing press section 2 that puts in place, the seal ring annular groove that is formed by sealing head base portion and sealing head press section narrows down, thereby crush seal circle, make the external diameter of seal ring become big, so reach the purpose of sealing; Pressure medium is treated by connection that expand tube spare 5 inside and outside liquid filling holes 4 enter and is treated in the expand tube spare then, under the effect of pressure medium, closely cooperates thereby will be increased with composite members by the expand tube size; After finishing, unclamp sealing head press section 2, seal ring 3 returns, the sealing cancellation, pulling sealing head press section 2, sealing head base portion 1 withdraw from and finish workpiece.
The present invention is simple in structure, and sealing is reliable, in the working life of having improved seal ring greatly, has also improved the working efficiency of electric tube expander.
Claims (2)
1. sealing arrangement for pipe expanding machine, comprise and to insert the sealing head for the treatment of expand tube spare (5) end and be arranged on the interior seal ring (3) of sealing head annular groove, it is characterized in that: described sealing head is in the annular groove that seal ring (3) is installed, be two-part away from sealing head free-ended side punishment, it comprises sealing head base portion (1), include the bottom surface of the annular groove that seal ring (3) is installed and the sealing head press section (2) of another side, the part of the bottom of the conduct installation seal ring annular groove of sealing head press section extends through sealing head base portion (1) and reaches outside the sealing head base portion (1), sealing head press section (2) can be with respect to sealing head base portion (1) motion, and the external diameter of seal ring (3) is less than the internal diameter for the treatment of expand tube spare (5).
2. sealing arrangement for pipe expanding machine as claimed in claim 1 is characterized in that: described sealing head press section (2) is provided with and can be communicated with the liquid filling hole (4) for the treatment of that expand tube spare (5) is inside and outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510043677 CN1687618A (en) | 2005-05-28 | 2005-05-28 | Sealing arrangement for pipe expanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510043677 CN1687618A (en) | 2005-05-28 | 2005-05-28 | Sealing arrangement for pipe expanding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1687618A true CN1687618A (en) | 2005-10-26 |
Family
ID=35305660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510043677 Pending CN1687618A (en) | 2005-05-28 | 2005-05-28 | Sealing arrangement for pipe expanding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1687618A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028637B (en) * | 2006-02-27 | 2010-05-12 | 梁雪华 | Liquid-expanding formation mould and liquid-expanding formation process using the mould |
| CN101337445B (en) * | 2008-01-05 | 2010-12-29 | 湖州机床厂有限公司 | High pressure variable-load sealing structure |
| CN103272878A (en) * | 2013-06-09 | 2013-09-04 | 汤晓明 | Method for manufacturing composite steel tube |
| CN103785737A (en) * | 2014-01-15 | 2014-05-14 | 南宁市绿韵制冷有限公司 | Manufacturing device and method of finned tubes |
-
2005
- 2005-05-28 CN CN 200510043677 patent/CN1687618A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028637B (en) * | 2006-02-27 | 2010-05-12 | 梁雪华 | Liquid-expanding formation mould and liquid-expanding formation process using the mould |
| CN101337445B (en) * | 2008-01-05 | 2010-12-29 | 湖州机床厂有限公司 | High pressure variable-load sealing structure |
| CN103272878A (en) * | 2013-06-09 | 2013-09-04 | 汤晓明 | Method for manufacturing composite steel tube |
| CN103785737A (en) * | 2014-01-15 | 2014-05-14 | 南宁市绿韵制冷有限公司 | Manufacturing device and method of finned tubes |
| CN103785737B (en) * | 2014-01-15 | 2015-11-18 | 南宁市绿韵制冷有限公司 | A kind of processing unit (plant) of finned tube and method |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |