CN201446209U - New type module for thickening inner and outer of tube end of drilling rod tube - Google Patents
New type module for thickening inner and outer of tube end of drilling rod tube Download PDFInfo
- Publication number
- CN201446209U CN201446209U CN2009200481330U CN200920048133U CN201446209U CN 201446209 U CN201446209 U CN 201446209U CN 2009200481330 U CN2009200481330 U CN 2009200481330U CN 200920048133 U CN200920048133 U CN 200920048133U CN 201446209 U CN201446209 U CN 201446209U
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- China
- Prior art keywords
- core
- module
- thickening
- drilling rod
- tube
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a new type module for thickening inner and outer of a tube end of a drilling rod tube, comprising an outer module (1) and a core module (2), which is characterized in that the core module (2) comprises a two-piece inner module (2.2) and a core module head (2.1) which is of a boss shape. A through hole is disposed on the core module head (2.1) along the axial core direction. The inner module (2.2) is of a frustum shape. A connecting rod (2.2.1) is disposed on a platform with smaller radius which can pass through the through hole on the core module head (2.1). By using the new type module for thickening inner and outer of a tube end of a drilling rod tube of the utility model, the manufactured drilling rod tube has a long thickening transiting area inside and a smooth and nature inner surface.
Description
(1) technical field
The utility model relates to a kind of drill pipe body pipe with internally and externally thickened end novel die.
(2) background technology
Drill pipe body and joint butt welding need be thickeied the drill pipe body pipe end, and the thickening form has three kinds of interior thickening, external upset (EU) and internal-external thickenings, and wherein internal-external thickening is to use morely, also is the bigger a kind of thickening mode of difficulty.Because drilling rod is to be on active service under complex dielectrics and complicated alternate load, the fatigue rupture of drill pipe thickening district is the principal mode that drilling rod lost efficacy, and requires the drill pipe body addition thick transition area to want smooth natural and want long enough for this reason.
The basic technology of drill pipe body end upsetting is to forge, and pipe end heating, forging and pressing (as Fig. 2) between external mold and core are according to three heating of needs of thickening size, three thickenings or four heating, four thickenings.In the thickening process since the fluctuation of inhomogeneous, the heating-up temperature difference of body wall thickness or upset force all can cause in addition thick transition area wave fold appears, this also is the principal mode that defective work appears in the drill pipe body end upsetting.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of interior addition thick transition area of drill pipe body that can make long, the smooth natural drill pipe body pipe with internally and externally thickened end novel die of inner surface.
The purpose of this utility model is achieved in that a kind of drill pipe body pipe with internally and externally thickened end novel die, and it comprises external mold and core, it is characterized in that: described core is made up of split type internal mold and core head;
Described core head is boss shape, and described core head upper edge shaft core direction is provided with through hole;
Described internal mold main body is taper type, and the less table top of its radius is provided with connecting rod, and described extension bar can pass from the through hole on the core head.
The utility model drill pipe body pipe with internally and externally thickened end novel die is provided with internal mold at interior addition thick transition area position when thickening the last time and is shaped with addition thick transition area in controlling or revising, and make the smooth nature of inner surface, and internal mold can take out conveniently after thickening is finished.The tapering of internal mold can be set according to the length of interior addition thick transition area needs, and the interior addition thick transition area of processing is long.
(4) description of drawings
Fig. 1 is the utility model drill pipe body pipe with internally and externally thickened end novel die structural representation.
Fig. 2 is former internal-external thickening mould at tube ends of drill stem tube body structural representation.
Among the figure:
Core head 2.1, internal mold 2.2, connecting rod 2.2.1,
Body 3.1, transition region 3.2, pipe end 3.3.
(5) specific embodiment
Referring to Fig. 1, the drill pipe body pipe with internally and externally thickened end novel die that the utility model relates to mainly is made up of external mold 1 and core 2, and described core 2 is made up of split type internal mold 2.2 and core head 2.1;
Described core head 2.1 is boss shape, and described core head 2.1 upper edge shaft core directions are provided with through hole;
Described internal mold 2.2 is for main body is taper type, and the less table top of its radius is provided with connecting rod 2.2.1, and described extension bar 2.2.1 can pass from the through hole on the core head 2.1.
In the drill pipe body end upsetting process, at interior addition thick transition area 3.3 positions internal mold 2.2 is set when thickening the last time and is shaped, make the smooth nature of inner surface with addition thick transition area in controlling or revising.Internal mold can conveniently take out after thickening is finished.The tapering of internal mold can be set according to the length of interior addition thick transition area needs, simple and convenient.
Claims (1)
1. drill pipe body pipe with internally and externally thickened end novel die, it comprises external mold (1) and core (2), it is characterized in that: described core (2) is made up of split type internal mold (2.2) and core head (2.1);
Described core head (2.1) is boss shape, and described core head (2.1) upper edge shaft core direction is provided with through hole;
Described internal mold (2.2) main body is taper type, and the less table top of its radius is provided with connecting rod (2.2.1), and described extension bar (2.2.1) can pass from the through hole on the core head (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200481330U CN201446209U (en) | 2009-08-31 | 2009-08-31 | New type module for thickening inner and outer of tube end of drilling rod tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200481330U CN201446209U (en) | 2009-08-31 | 2009-08-31 | New type module for thickening inner and outer of tube end of drilling rod tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201446209U true CN201446209U (en) | 2010-05-05 |
Family
ID=42550919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200481330U Expired - Lifetime CN201446209U (en) | 2009-08-31 | 2009-08-31 | New type module for thickening inner and outer of tube end of drilling rod tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201446209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170854A (en) * | 2015-09-30 | 2015-12-23 | 上海交通大学 | Tubular part local thickening molding device and method |
-
2009
- 2009-08-31 CN CN2009200481330U patent/CN201446209U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170854A (en) * | 2015-09-30 | 2015-12-23 | 上海交通大学 | Tubular part local thickening molding device and method |
| CN105170854B (en) * | 2015-09-30 | 2017-03-22 | 上海交通大学 | Tubular part local thickening molding device and method |
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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: 20100505 Effective date of abandoning: 20090831 |