CN102733761A - Pumping rods with miter rod heads - Google Patents
Pumping rods with miter rod heads Download PDFInfo
- Publication number
- CN102733761A CN102733761A CN2012102134340A CN201210213434A CN102733761A CN 102733761 A CN102733761 A CN 102733761A CN 2012102134340 A CN2012102134340 A CN 2012102134340A CN 201210213434 A CN201210213434 A CN 201210213434A CN 102733761 A CN102733761 A CN 102733761A
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- China
- Prior art keywords
- bar head
- miter
- cuff
- sucker rod
- external screw
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Abstract
The invention provides pumping rods with miter rod heads. One end of each pumping rod is provided with the rod head which is provided with a rod head sliding part and a miter; two pumping rods with the miters and the rod head sliding parts are spirally connected with each other through an inner thread sleeve hoop and an outer thread sleeve hoop to form a pumping rod string in a rod head cavity with an inner thread sleeve hoop rod head sliding cavity and an outer thread sleeve hoop rod head sliding cavity; the inner thread sleeve hoop rod head sliding cavity and an inner thread are arranged in an inner thread sleeve hoop rod head cavity; one end outside the outer thread sleeve hoop is provided with an outer thread and an undercut part; and the outer thread sleeve hoop rod head sliding cavity is arranged on one side of the outer thread sleeve hoop. The pumping rod heads at two ends are provided with the complementary miters, so that the pumping rods are high in tensile strength after being connected, can be assembled and disassembled quickly and conveniently, have the advantage of preventing tripping and eccentric wear and are suitable to be used as rotation pumping rods or reciprocating pumping rods.
Description
Technical field
The present invention is to provide the parts in oil recovery machiner field, specifically a kind of sucker rod that is provided with miter bar head.
Background technology
According to the technology of screw pump oil production, to the requirement of rod string, promptly to bear, bearing torque again, but main be bearing torque.The pattern of China's existing sucker rod head transfer torque: the one, various fork-join mouth formulas, the 2nd, drill rod thread associated mode.The weak point of fork-join mouth formula joint is prone to the fracture of fork-join mouth.The weak point of drill rod thread associated mode is to be not easy to the well dismounting.Even when playing well, need the sucker rod head saw disconnected.
Summary of the invention
In order to overcome the shortcoming that existing connection form sucker rod exists, the invention provides a kind of sucker rod that is provided with miter bar head.The miter that this sucker rod is set to be parallel to each other through the bar head solves enhancing sucker rod transfer torque technology of dependability problem.
The scheme that technical solution problem of the present invention is adopted is:
End at sucker rod is provided with the bar head, and the bar head is provided with bar head sliding part and miter.
Two have miter and a bar head sliding part sucker rod spin in the bar head cavity body that constitutes the formation rod string relatively with internal thread cuff bar head sliding cavity and external screw thread cuff bar head sliding cavity through internal thread cuff and external screw thread cuff;
Be provided with internal thread cuff bar head sliding cavity and internal thread in the internal thread cuff bar head cavity body.
The external screw thread cuff outside one end is provided with external screw thread and empty cutter portion, is provided with external screw thread cuff bar head sliding cavity in external thread sleeve hoop one side.
Installing space is between 0.5～1.0 between the two relative bar head miters.
Good effect, two ends of the present invention sucker rod head are provided with complementary miter, thus the tension of sucker rod after connecting to turn round performance good, and install and remove convenient, possess simultaneously anti-ly thread off, the advantage of anti-eccentric wear.Suitable to rotation sucker rod or the application of reciprocal reciprocating oil pumping bar.
Description of drawings
Fig. 1 is invention sucker rod structure chart
Fig. 2 is a sucker rod head miter sketch map of the present invention
Fig. 3 is an internal thread cuff sectional view of the present invention
Fig. 4 is an external screw thread cuff sectional view of the present invention
Among the figure, 1. sucker rod, 1.1. bar head, 1.2. bar head sliding part; 1.3. miter, 2.1. internal thread cuff, 2.11. internal thread cuff bar head sliding cavity, 2.12. internal thread; 2.2. the external screw thread cuff, 2.21. external screw thread cuff bar head sliding cavity, 2.22. external screw thread, the empty cutter of 2.23. portion.
The specific embodiment
Shown in figure:
End at sucker rod 1 is provided with bar head 1.1, and the bar head is provided with bar head sliding part 1.2 and miter 1.3;
Two have miter and a bar head sliding part sucker rod spin in the bar head cavity body that constitutes through internal thread cuff 2.1 and external screw thread cuff 2.2 relatively with internal thread cuff bar head sliding cavity 2.11 and external screw thread cuff bar head sliding cavity 2.21, constitute rod string;
Wherein, be provided with internal thread cuff bar head sliding cavity and internal thread 2.12 in the internal thread cuff bar head cavity body;
The external screw thread cuff outside one end is provided with external screw thread 2.22 and empty cutter portion 2.23, is provided with external screw thread cuff bar head sliding cavity 2.21 in external thread sleeve hoop one side.
Installing space is between 0.5～1.0 between the two relative bar head miters.
Miter bar head material is 35 chrome-moly steels, and hardness HB is 280～300,830～860 ℃ of hardening heats, and hardening media is a water, 580～600 ℃ of temperatures.
Internal thread cuff and external screw thread cuff material are 40 chromium alloyed steels.
After internal thread cuff and the assembling of external screw thread cuff, the bar head of sucker rod can freely rotate in bar head cavity body.When an end bar head rotates, can drive other end bar head through miter and rotate, carry out the transmission of moment of torsion.And between the bar head miter of two ends, be provided with the gap, and change so can produce the torsion face, prevent cuff dropout and sucker rod partial wear, and adapt to the inclined shaft operation.
Characteristics of the present invention:
1, simple in structure, be convenient to dismounting, can shorten the activity duration of going into the well, playing well.
2, can alleviate the eccentric wear of cuff external diameter to pipe aperture because sucker rod can freely rotate in cuff, even if cuff in oil pipe moment clamping stagnation do not change, this moment rod string still can the normal delivery nominal torque.
The present invention since just the bar head Design and Machining of sucker rod be the complementary miter of angle; So; Even behind the thread looseness of internal thread cuff and external screw thread cuff; Interaction between two miters also can make sucker rod bear the transmission of torsion, can not cause sucker rod to become flexible and the normal use of influence.
Suitable solid sucker rod or the hollow rod as rotation or reciprocating oil pumping unit of the present invention used.
Claims (4)
1. sucker rod that is provided with miter bar head is characterized in that:
End at sucker rod (1) is provided with bar head (1.1), and the bar head is provided with bar head sliding part (1.2) and miter (1.3);
Two have miter and a bar head sliding part sucker rod spin in the bar head cavity body that constitutes the formation rod string relatively with internal thread cuff bar head sliding cavity (2.11) and external screw thread cuff bar head sliding cavity (2.21) through internal thread cuff (2.1) and external screw thread cuff (2.2);
Wherein, be provided with internal thread cuff bar head sliding cavity and internal thread (2.12) in the internal thread cuff bar head cavity body;
The external screw thread cuff outside one end is provided with external screw thread (2.22) and empty cutter portion (2.23), is provided with external screw thread cuff bar head sliding cavity (2.21) in external thread sleeve hoop one side.
2. the sucker rod that is provided with miter according to claim 1 is characterized in that: installing space is between 0.5～1.0 between the two relative bar head miters.
3. the sucker rod that is provided with miter according to claim 1 is characterized in that: miter bar head material is 35 chrome-moly steels, and hardness HB is 280～300,830～860 ℃ of hardening heats, and hardening media is a water, temperature is between 580～600 ℃.
4. the sucker rod that is provided with miter according to claim 1 is characterized in that: internal thread cuff and external screw thread cuff material are 40 chromium alloyed steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213434.0A CN102733761B (en) | 2012-06-27 | 2012-06-27 | Pumping rods with miter rod heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213434.0A CN102733761B (en) | 2012-06-27 | 2012-06-27 | Pumping rods with miter rod heads |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102733761A true CN102733761A (en) | 2012-10-17 |
| CN102733761B CN102733761B (en) | 2015-05-13 |
Family
ID=46989987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210213434.0A Active CN102733761B (en) | 2012-06-27 | 2012-06-27 | Pumping rods with miter rod heads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102733761B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922523A (en) * | 2014-05-09 | 2014-07-16 | 张志雄 | Internal thread chromium alloy island sea water desalination system |
| CN105907922A (en) * | 2016-07-07 | 2016-08-31 | 安庆市庆华精工机械有限责任公司 | Thermal treatment device and method of chrome alloy steel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0767335A1 (en) * | 1995-10-03 | 1997-04-09 | Vallourec Oil & Gas | Threaded joint for tubes |
| RU2267002C1 (en) * | 2004-06-11 | 2005-12-27 | Дочернее общество с ограниченной ответственностью "Буровая компания открытого акционерного общества "ГАЗПРОМ" (ДООО "БУРГАЗ") | Cable adapter sub |
| WO2006092649A1 (en) * | 2005-03-02 | 2006-09-08 | Vallourec Mannesmann Oil & Gas France | Drill stem connection |
| CN201513133U (en) * | 2009-09-29 | 2010-06-23 | 山东墨龙石油机械股份有限公司 | Back-off prevention self-locking sucker rod |
| CN202249805U (en) * | 2011-09-22 | 2012-05-30 | 中国石油集团渤海石油装备制造有限公司 | Anti-tripping connecting device for hollow sucker rod |
| CN202645459U (en) * | 2012-06-27 | 2013-01-02 | 葫芦岛龙源采油配套设备有限公司 | Sucker rod provided with inclined connection faces |
-
2012
- 2012-06-27 CN CN201210213434.0A patent/CN102733761B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0767335A1 (en) * | 1995-10-03 | 1997-04-09 | Vallourec Oil & Gas | Threaded joint for tubes |
| RU2267002C1 (en) * | 2004-06-11 | 2005-12-27 | Дочернее общество с ограниченной ответственностью "Буровая компания открытого акционерного общества "ГАЗПРОМ" (ДООО "БУРГАЗ") | Cable adapter sub |
| WO2006092649A1 (en) * | 2005-03-02 | 2006-09-08 | Vallourec Mannesmann Oil & Gas France | Drill stem connection |
| CN201513133U (en) * | 2009-09-29 | 2010-06-23 | 山东墨龙石油机械股份有限公司 | Back-off prevention self-locking sucker rod |
| CN202249805U (en) * | 2011-09-22 | 2012-05-30 | 中国石油集团渤海石油装备制造有限公司 | Anti-tripping connecting device for hollow sucker rod |
| CN202645459U (en) * | 2012-06-27 | 2013-01-02 | 葫芦岛龙源采油配套设备有限公司 | Sucker rod provided with inclined connection faces |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922523A (en) * | 2014-05-09 | 2014-07-16 | 张志雄 | Internal thread chromium alloy island sea water desalination system |
| CN105907922A (en) * | 2016-07-07 | 2016-08-31 | 安庆市庆华精工机械有限责任公司 | Thermal treatment device and method of chrome alloy steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102733761B (en) | 2015-05-13 |
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