CN201306348Y - High-strength threaded sleeve with a coupling - Google Patents
High-strength threaded sleeve with a coupling Download PDFInfo
- Publication number
- CN201306348Y CN201306348Y CNU2009201432100U CN200920143210U CN201306348Y CN 201306348 Y CN201306348 Y CN 201306348Y CN U2009201432100 U CNU2009201432100 U CN U2009201432100U CN 200920143210 U CN200920143210 U CN 200920143210U CN 201306348 Y CN201306348 Y CN 201306348Y
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- CN
- China
- Prior art keywords
- degrees
- thread
- coupling
- threaded sleeve
- strength threaded
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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 - Fee Related
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Abstract
The utility model discloses a high-strength threaded sleeve with a coupling, which is provided with a pipe body outer thread element and a coupling inner thread element which are connected with each other through thread into a whole body, wherein, the pipe body outer thread element and the coupling inner thread element adopt a flat trapezoid thread, and the thread pitch is five teeth; the conicity is 62 to 65 degrees; the tightness distance is 1.0 to 3.0 mm; an outer chamfer angle is 1 mm: 65 degrees (plugs or minus 5 degrees); thread form angle is 2 to 4 degrees; side surface of the bearing tooth is 3 degrees; the side surface of the guiding tooth is 10 degrees; and the inner chamger angle is 1 mm: 45 degrees. The high-strength threaded sleeve with a coupling can bear large stretching and large compression load, and has easy processing and low price; the tightness is identical to that of the standard locking type; when in the mounting operation, mistake locking is uneasy to appear; the processing craftwork is mature and stable, and the requirements of API5CT and API5B can be satisfied; the application prospect in the bushing thread processing is very promising, and the economic benefit and the social benefit are remarkable.
Description
Technical field:
The utility model relates generally to a kind of band box cupling high strength threaded sleeve.
Background technique:
What the domestic production sleeve pipe used at present is API standard thread button-type, and this screw thread button-type can only bear the tension load of the 60%-80% that is equivalent to body intensity, and join strength is low.
The model utility content:
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of band box cupling high strength threaded sleeve to be provided.It has the anti-axial tension of raising or anti-axial compression loading ability, can improve the join strength of sleeve pipe, has reduced the use amount of high grade of steel material, makes the intensity of body and pipe joint suitable.
The utility model is achieved through the following technical solutions:
Band box cupling high strength threaded sleeve, it is characterized in that: include body external thread piece and box cupling inner thread piece by being threaded to one, its pitch of screw thread on described body external thread piece and the box cupling inner thread piece is 5 teeth; Tapering is 62-65 °; Closely distance is 1.0-3.0mm; Outer chamfering is 1mm * 65 °; The tooth form angle is 2-4 °; 3 ° of carrying tooth sides, 10 ° of guiding tooth sides; Interior chamfering is 1mm * 45 °.
The utlity model has 3 degree carrying tooth sides and 10 degree guiding tooth sides, can bear enough big stretching and compressive load.Particularly 3 degree carrying tooth sides make screw thread have enough tensile strength.The gradient of crest tooth low degree is identical with the slope of thread, and crest has circular arc, and the guiding tooth side is bigger at the radius of arc of crest than supporting plane at the radius of arc of crest, helps screwing of screw thread.
The utility model does not have the screw thread of influence continuity, linear discontinuities, no cutter shape seamed edge, no burr, screw thread starting point and chamfer surface.
The utility model has the advantages that:
The utility model can bear enough big stretching and compressive load; Be difficult for rupturing in the threaded connection place because of corrosion; Easily processing, cost is low; Sealing is suitable with the standard button-type; Be not prone to thread alternating during fitting operation; Processing technology maturation, stable can satisfy the requirement of API 5CT and API 5B.Boundless in casing threads processed and applied prospect, its economic benefit and social benefit are very remarkable.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the external thread structure schematic representation of body external thread piece of the present utility model.
Embodiment:
Band box cupling high strength threaded sleeve, include body external thread piece 1 and box cupling inner thread piece by being threaded to one, internal and external screw thread on described body external thread piece 1 and the box cupling inner thread piece adopts the high strength screw thread, and outside thread 2 pitch of its body external thread piece 1 are 5 teeth; Tapering is 62-65 °; Closely distance is 1.0-3.0mm; Outer chamfering is 1mm * 65 ° (+5 °-0 °); The tooth form angle is 2-4 °; 3 ° of carrying tooth sides, 10 ° of guiding tooth sides; Interior chamfering is 1mm * 45 °.
Claims (1)
1, band box cupling high strength threaded sleeve, it is characterized in that: include body external thread piece and box cupling inner thread piece by being threaded to one, its pitch of screw thread on body external thread piece and the box cupling inner thread piece is 5 teeth, tapering is 62-65 °, closely apart from being 1.0-3.0mm, outer chamfering is 1mm * 65 °, and the tooth form angle is 2-4 °, 3 ° of carrying tooth sides, 10 ° of guiding tooth sides; Interior chamfering is 1mm * 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201432100U CN201306348Y (en) | 2009-03-03 | 2009-03-03 | High-strength threaded sleeve with a coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201432100U CN201306348Y (en) | 2009-03-03 | 2009-03-03 | High-strength threaded sleeve with a coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306348Y true CN201306348Y (en) | 2009-09-09 |
Family
ID=41098814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201432100U Expired - Fee Related CN201306348Y (en) | 2009-03-03 | 2009-03-03 | High-strength threaded sleeve with a coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306348Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199995A (en) * | 2011-04-13 | 2011-09-28 | 安徽天大石油管材股份有限公司 | Process for producing high-precision special threaded sleeve pipe coupling |
| CN104388637A (en) * | 2014-10-17 | 2015-03-04 | 无锡英普林纳米科技有限公司 | Method for induction heating on threaded surface of oil casing collar |
| CN106471265A (en) * | 2014-05-01 | 2017-03-01 | 研究工程及制造公司 | For avoiding the closure system including external screw thread bolt and internal threaded nut of the cross threading of matching thread during assembly |
-
2009
- 2009-03-03 CN CNU2009201432100U patent/CN201306348Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199995A (en) * | 2011-04-13 | 2011-09-28 | 安徽天大石油管材股份有限公司 | Process for producing high-precision special threaded sleeve pipe coupling |
| CN106471265A (en) * | 2014-05-01 | 2017-03-01 | 研究工程及制造公司 | For avoiding the closure system including external screw thread bolt and internal threaded nut of the cross threading of matching thread during assembly |
| CN104388637A (en) * | 2014-10-17 | 2015-03-04 | 无锡英普林纳米科技有限公司 | Method for induction heating on threaded surface of oil casing collar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20140303 |