CN202377412U - Expanding head for rounding expansion of pipe or machining of lined composite pipe - Google Patents
Expanding head for rounding expansion of pipe or machining of lined composite pipe Download PDFInfo
- Publication number
- CN202377412U CN202377412U CN2011205581722U CN201120558172U CN202377412U CN 202377412 U CN202377412 U CN 202377412U CN 2011205581722 U CN2011205581722 U CN 2011205581722U CN 201120558172 U CN201120558172 U CN 201120558172U CN 202377412 U CN202377412 U CN 202377412U
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- CN
- China
- Prior art keywords
- sleeve
- hole enlargement
- baffle plate
- plate flange
- tubing
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an expanding head for the rounding expansion of a pipe or the machining of a lined composite pipe. The expanding head comprises a fixed shaft, a sleeve, baffle flanges, high-pressure elastic liquid bags, a liquid outlet pipe and a liquid inlet pipe, wherein the sleeve and the baffle flanges are arranged at one end of the fixed shaft; one baffle flange is arranged at each of the two ends of the sleeve; the high-pressure elastic liquid bags are arranged in a cavity enclosed by the sleeve and the baffle flanges at the two ends of the sleeve; and one ends of the liquid inlet pipe and the liquid outlet pipe are communicated with the high-pressure elastic liquid bags, and the other ends of the liquid inlet and the liquid outlet are extended from the cavity enclosed by the sleeve and the baffle flanges at the two ends of the sleeve. Own advantages of hydraulic expansion and mechanical expansion are combined, so that the expanding head eliminates the discharge process of a hydraulic medium compared with the hydraulic expansion; in addition, the cubical content of the hydraulic medium for expansion is low, so that an outer packaging die required by the conventional hydraulic expansion can be eliminated; and when the lined bimetallic composite pipe is machined, by a capsular soft material for the expanding head, frictional damage to a liner pipe can be avoided.
Description
Technical field
The utility model belongs to machinery manufacturing technology field, relates to a kind of tubing perhaps is used for inner liner compound pipe (bimetal tube) processing such as the full circle hole enlargement of steel pipe hole enlargement head that is used for.
Background technology
In the production of long distance pipeline, use hole enlargement full circle operation, to guarantee the geometry circularity of the steel pipe of being produced to steel pipe with steel pipe (especially vertical masonry joint submerged arc welding steel pipe).
Tradition once adopted the mode of hydraulic pressure hole enlargement to carry out to the full circle of steel pipe; This mode with the mechanical seal of steel pipe two ends after, to steel pipe inner chamber water-filling pressurization, utilize the effect of hydraulic pressure will put in order Zhi Gangguan (being generally the length of 12m) and suppress to a certain degree surrender (girth is worse than the ratio of girth before the hole enlargement before and after general enlarging rate-hole enlargement; Be not more than 1.5%); The explanation of image point is just as blowing up a balloon, and steel pipe carries out in the process of this operation promptly by hydraulic pressure hole enlargement full circle certainly after the pressure release; Adopt the outsourcing mould will put in order Zhi Gangguan and block, with the outside dimension of steel pipe after the assurance hole enlargement.Adopt the drawback of this mode to be all need be equipped with a cover outsourcing mould to the production of each specification steel pipe, must change corresponding mould when changing different steel pipe specification influence production efficiency, and the processing of mould simultaneously needs cost, and depositing of mould of while will take up room.
Based on the drawback of hydraulic pressure hole enlargement, at present steel pipe being carried out the mode that hole enlargement the most often adopts is machinery expanding: the hole enlargement head is placed in the steel pipe pipe; Hydraulic cylinder in the hole enlargement head produces axially-movable; Can axially-movable be changed into radial motion through cotter mechanism; The outer swelling pressure power that radial motion produces then can realize the hole enlargement to steel pipe, and the size of hole enlargement amount is confirmed that by the stroke of axially-movable machinery expanding does not need the outsourcing mould; The voussoir that contacts with steel pipe internal-surface in the machinery expanding is a steel material, and (different according to steel pipe sizes, step-length 600～800mm) completion of each step hole enlargement are to the full circle hole enlargement of a steel pipe (being generally the length of 12m) through step-by-step system.Machinery expanding do not need mainly to be the outsourcing mould with respect to the advantage of hydraulic pressure hole enlargement, and a hole enlargement head can cover the different outside dimension of certain limit simultaneously, in this scope, can realize step-less adjustment.The shortcoming of this mechanicalness opening device is that cost is higher.
The utility model content
The purpose of the utility model is to design a kind of novel being used for the hole enlargement of tubing full circle or being used for the hole enlargement head that inner liner compound pipe is processed, and addresses the above problem.
To achieve these goals, the technical scheme of the utility model employing is following:
A kind of hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing; Comprise fixed axis, sleeve, baffle plate flange, high-pressure elastomeric liquid capsule, drain pipe and feed tube; Said sleeve and said baffle plate flange are located at an end of said fixed axis; The two ends of said sleeve are provided with said baffle plate flange, and said high-pressure elastomeric liquid capsule is arranged at the cavity that said sleeve and the said baffle plate flange that is positioned at said sleeve two ends surround; One end of said feed tube and said drain pipe all is communicated with said high-pressure elastomeric liquid capsule, and the other end passes the cavity that said sleeve and the said baffle plate flange that is positioned at said sleeve two ends surround.
Also comprise packing; Said sleeve, said baffle plate flange and said packing are set in an end of said fixed axis; The two ends of said sleeve are provided with said baffle plate flange; Be provided with said packing between said baffle plate flange and the said sleeve, said high-pressure elastomeric liquid capsule is arranged at the cavity that said sleeve and the said packing that is positioned at said sleeve two ends surround.
Said packing is the adjustable packing of external diameter.
Seal between the outer edge surface of said baffle plate flange and the inwall of processed tubing.
Also sealing between the outer edge surface of said packing and the inwall of processed tubing, and the seal degree between the inwall of the outer edge surface of said packing and processed tubing is greater than the seal degree between the inwall of the outer edge surface of said baffle plate flange and processed tubing.
Said baffle plate flange is the adjustable baffle plate flange of external diameter.
Said sleeve is the adjustable sleeve of external diameter.
One end of said feed tube is communicated with said high-pressure elastomeric liquid capsule, and the other end is communicated with the high pressure liquid source after passing the cavity that said sleeve and the said baffle plate flange that is positioned at said sleeve two ends surround; One end of said drain pipe also is communicated with said high-pressure elastomeric liquid capsule, and the other end is communicated with low hydraulic source after passing the cavity that said sleeve and the said baffle plate flange that is positioned at said sleeve two ends surround.
Be equipped with the liquid sealed valve on said feed tube and the said drain pipe, be connected with liquid manometer on the said high-pressure elastomeric liquid capsule.
Said tubing is steel pipe.
The so-called tubing of the utility model can comprise the tubing of various metals or non-metallic material, such as steel pipe.The so-called inner liner compound pipe of the utility model is meant bimetal tube.
The utility model can adopt the mode of step-by-step operation that steel pipe is carried out hole enlargement; With one section one section ground hole enlargement of steel pipe; Whole whole length steel pipe hole enlargement of final completion, this device also can be used for carrying out the processing of the compound composite bimetal pipe of liner through interior expanding, and the processing of reducing steel pipe; But the part that contacts with the steel pipe inwall is not to adopt the voussoir of steel material, and replaces rubber or other has certain flexible soft material.
The utility model adopts rubber or other to have certain flexible soft material and makes a blister cavities, and pressure that will " hydraulic pressure " hole enlargement through this blister cavities evenly is delivered to steel pipe and treats the hole enlargement part, and completion is to the hole enlargement of steel pipe.The effect of this blister cavities is containing, sealed hydraulic medium (water, oil or other hydraulic mediums that is fit to), and transmits the pressure of hole enlargement.
Adopt the device of the utility model carry out pipe expanding or liner composite bimetal pipe add man-hour, can simply control the quality of pipe expanding through the controlled pressure+mode of hydraulic medium flow.In carrying out the pipe expanding operation; Record the actual yield strength of tube material through tension test; And required hole enlargement pressure when calculating hole enlargement in view of the above, through realizing making steel pipe to reach the hole enlargement degree (enlarging rate) of lucky needs to jointly controlling of the hydraulic medium volume that gets in the blister cavities in hole enlargement pressure and the hole enlargement process.
The beneficial effect of the utility model can be summed up as follows:
1, the utility model has combined hydraulic pressure hole enlargement and machinery expanding advantage separately; The basic mode of machinery expanding step-by-step operation that adopts is carried out; But the part that contacts with the steel pipe inwall is not to adopt the voussoir of steel material, and replaces rubber or other has certain flexible soft material; Make a blister cavities with this material, contain, sealed hydraulic medium (water, oil or other suitable hydraulic mediums), and through this blister cavities the pressure of " hydraulic pressure " hole enlargement evenly is delivered to steel pipe and treats the hole enlargement part.Compare the hydraulic pressure hole enlargement, reduced the process of releasing of hydraulic medium, simultaneously the cubical content of used hydraulic medium is less when hole enlargement, the outsourcing mould that must neck in the time of can saving the conventional hydraulic hole enlargement adopts.
2, the utility model is in the man-hour that adds of carrying out the liner composite bimetal pipe, and the chamber capsule Microsoft material of this hole enlargement head can be avoided the damage by friction to internal lining pipe.
Description of drawings
Fig. 1 is the composition structural representation of the utility model hole enlargement head;
Fig. 2 is the operation principle sketch map of the utility model hole enlargement head.
The specific embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of hole enlargement head that be used for tubing full circle hole enlargement or be used for inner liner compound pipe processing extremely shown in Figure 2 like Fig. 1; Comprise fixed axis 1, sleeve 2, baffle plate flange 3, high-pressure elastomeric liquid capsule 4, packing 7, drain pipe 5 and feed tube 6; Said sleeve 2, said baffle plate flange 3 and said packing 7 are set in an end of said fixed axis 1; The two ends of said sleeve 2 are provided with said baffle plate flange 3; Be provided with said packing 7 between said baffle plate flange 3 and the said sleeve 2, said high-pressure elastomeric liquid capsule 4 is arranged at the cavity that said sleeve 2 and the said packing 7 that is positioned at said sleeve 2 two ends surround; One end of said feed tube 6 is communicated with said high-pressure elastomeric liquid capsule 4, and the other end is communicated with the high pressure liquid source after passing the cavity that said sleeve 2 and the said baffle plate flange 3 that is positioned at said sleeve 2 two ends surround; One end of said drain pipe 5 also is communicated with said high-pressure elastomeric liquid capsule 4, and the other end is communicated with low hydraulic source after passing the cavity that said sleeve 2 and the said baffle plate flange 3 that is positioned at said sleeve 2 two ends surround; Seal between the outer edge surface of said baffle plate flange 3 and the inwall of processed tubing; Also sealing between the outer edge surface of said packing 7 and the inwall of processed tubing, and the seal degree between the inwall of the outer edge surface of said packing 7 and processed tubing is greater than the seal degree between the inwall of the outer edge surface of said baffle plate flange 3 and processed tubing; Said packing 7 is the adjustable packing of external diameter, and said baffle plate flange 3 is the adjustable baffle plate flange of external diameter, and said sleeve 2 is the adjustable sleeve of external diameter; Be equipped with the liquid sealed valve on said feed tube 6 and the said drain pipe 5, be connected with liquid manometer on the said high-pressure elastomeric liquid capsule 4, said tubing is steel pipe.
Fixed axis 1 in the utility model: be used for other parts (expansion neck portion) of hole enlargement head are fixed in this axle,, the expansion neck portion of hole enlargement head stretched into the inside of processed steel pipe 8 simultaneously through this axle;
Sleeve 2: sleeve 2 is set on the fixed axis 1, according to its size of size adjustment of processed steel pipe 8, to reduce the volume of final used liquid capsule (being high-pressure elastomeric liquid capsule) 4;
The adjustable baffle plate flange 3 of external diameter: the effect of adjusting is in order to be applicable to different steel pipes 8 sizes, the axial load that will be passed over by liquid capsule 4 when its outer rim will be born hole enlargement;
The adjustable packing 7 of external diameter: the effect of adjusting is in order to be applicable to different steel pipes 8 sizes, and its outer rim will play the gap between adjustable baffle plate flange 3 of sealing and steel pipe 8 (being processed steel pipe 8) inwall, make liquid capsule 4 itself not receive excessive pressure;
Liquid capsule 4: liquid capsule 4 is processed by rubber-like rubber or other soft materials, and its effect is containing, the sealing that forms hydraulic medium, and transmits the pressure of hole enlargement.
The operation principle of the hole enlargement head in this utility model is as shown in Figure 2.
When a carries out steel pipe 8 hole enlargements, hydraulic part (comprising high pressure liquid source and low hydraulic source) action, the deflated state of a maintenance hole enlargement outside dimension puts in the other end in the steel pipe 8 by fixed axis 1 drive with the hole enlargement head;
Adjustable baffle plate flange 3 actions of b external diameter keep the contact seal with steel pipe 8 inwalls;
7 actions of the adjustable packing of c external diameter keep and the contacting and the sealing of higher degree of steel pipe 8 inwalls;
The action of d hydraulic part to liquid capsule 4 topping ups, pressurization, is accomplished the hole enlargement by 7 seal section steel pipes 8 of the adjustable packing of external diameter through the volume of pressure medium in control institute's plus-pressure and the entering liquid capsule 4;
E is to 4 pressure releases of liquid capsule, and hydraulic part moves and reduces liquid capsule 4 part external diameters;
The contact seal of adjustable packing 7 action releasings of f external diameter and steel pipe 8 inwalls is also dwindled self external diameter;
The contact seal of adjustable baffle plate flange 3 action releasings of g external diameter and steel pipe 8 inwalls is also dwindled self external diameter;
H is driven by fixed axis 1 the hole enlargement head is moved to another position;
I repeats b-h until the whole hole enlargement of accomplishing whole Zhi Gangguan 8.
More than through the detailed description of concrete and preferred embodiment the utility model; But those skilled in the art should be understood that; The utility model is not limited to the above embodiment; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. one kind is used for the hole enlargement of tubing full circle or is used for the hole enlargement head that inner liner compound pipe is processed; It is characterized in that: comprise fixed axis, sleeve, baffle plate flange, high-pressure elastomeric liquid capsule, drain pipe and feed tube; Said sleeve and said baffle plate flange are located at an end of said fixed axis; The two ends of said sleeve are provided with said baffle plate flange, and said high-pressure elastomeric liquid capsule is arranged at the cavity that said sleeve and the said baffle plate flange that is positioned at said sleeve two ends surround; One end of said feed tube and said drain pipe all is communicated with said high-pressure elastomeric liquid capsule, and the other end passes the cavity that said sleeve and the said baffle plate flange that is positioned at said sleeve two ends surround.
2. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 1; It is characterized in that: also comprise packing; Said sleeve, said baffle plate flange and said packing are set in an end of said fixed axis; The two ends of said sleeve are provided with said baffle plate flange, are provided with said packing between said baffle plate flange and the said sleeve, and said high-pressure elastomeric liquid capsule is arranged at the cavity that said sleeve and the said packing that is positioned at said sleeve two ends surround.
3. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 2, it is characterized in that: said packing is the adjustable packing of external diameter.
4. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 2 is characterized in that: seal between the outer edge surface of said baffle plate flange and the inwall of processed tubing.
5. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 4; It is characterized in that: also sealing between the outer edge surface of said packing and the inwall of processed tubing, and the seal degree between the inwall of the outer edge surface of said packing and processed tubing is greater than the seal degree between the inwall of the outer edge surface of said baffle plate flange and processed tubing.
6. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 1, it is characterized in that: said baffle plate flange is the adjustable baffle plate flange of external diameter.
7. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 1, it is characterized in that: said sleeve is the adjustable sleeve of external diameter.
8. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 1; It is characterized in that: an end of said feed tube is communicated with said high-pressure elastomeric liquid capsule, and the other end is communicated with the high pressure liquid source after passing the cavity that said sleeve and the said baffle plate flange that is positioned at said sleeve two ends surround; One end of said drain pipe also is communicated with said high-pressure elastomeric liquid capsule, and the other end is communicated with low hydraulic source after passing the cavity that said sleeve and the said baffle plate flange that is positioned at said sleeve two ends surround.
9. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 1 is characterized in that: be equipped with the liquid sealed valve on said feed tube and the said drain pipe, be connected with liquid manometer on the said high-pressure elastomeric liquid capsule.
10. the hole enlargement head that is used for the hole enlargement of tubing full circle or is used for inner liner compound pipe processing according to claim 1, it is characterized in that: said tubing is steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205581722U CN202377412U (en) | 2011-12-28 | 2011-12-28 | Expanding head for rounding expansion of pipe or machining of lined composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205581722U CN202377412U (en) | 2011-12-28 | 2011-12-28 | Expanding head for rounding expansion of pipe or machining of lined composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202377412U true CN202377412U (en) | 2012-08-15 |
Family
ID=46625932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205581722U Withdrawn - After Issue CN202377412U (en) | 2011-12-28 | 2011-12-28 | Expanding head for rounding expansion of pipe or machining of lined composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202377412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182456A (en) * | 2011-12-28 | 2013-07-03 | 北京隆盛泰科石油管科技有限公司 | Diameter expansion head for rounding and diameter expansion of tubular products or for processing of lining composite pipes |
| CN112719104A (en) * | 2020-12-02 | 2021-04-30 | 安徽扬天金塑新能源装备股份公司 | Double-station efficient hydraulic pipe expander |
| CN115673653A (en) * | 2022-12-30 | 2023-02-03 | 河北海特汽车部件有限公司 | Pipe fitting flange bolt subassembly welding jig |
-
2011
- 2011-12-28 CN CN2011205581722U patent/CN202377412U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182456A (en) * | 2011-12-28 | 2013-07-03 | 北京隆盛泰科石油管科技有限公司 | Diameter expansion head for rounding and diameter expansion of tubular products or for processing of lining composite pipes |
| CN103182456B (en) * | 2011-12-28 | 2016-02-17 | 北京隆盛泰科石油管科技有限公司 | A kind of for tubing full circle expanding or for inner liner compound pipe processing expanding head |
| CN112719104A (en) * | 2020-12-02 | 2021-04-30 | 安徽扬天金塑新能源装备股份公司 | Double-station efficient hydraulic pipe expander |
| CN115673653A (en) * | 2022-12-30 | 2023-02-03 | 河北海特汽车部件有限公司 | Pipe fitting flange bolt subassembly welding jig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120815 Effective date of abandoning: 20160217 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |