CN201420511Y - Wear-resistant sucker rod coupling - Google Patents
Wear-resistant sucker rod coupling Download PDFInfo
- Publication number
- CN201420511Y CN201420511Y CN2009200247511U CN200920024751U CN201420511Y CN 201420511 Y CN201420511 Y CN 201420511Y CN 2009200247511 U CN2009200247511 U CN 2009200247511U CN 200920024751 U CN200920024751 U CN 200920024751U CN 201420511 Y CN201420511 Y CN 201420511Y
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- CN
- China
- Prior art keywords
- wear
- sucker rod
- resistant layer
- diameter section
- metal body
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a wear-resistant sucker rod coupling, which is a metal body and is internally provided with through inner threads connected with a sucker rod. A plane through which pipe tongs are arranged is arranged at one end of the metal body; the metal body is provided with a large-diameter section which is provided with a thermal spraying wear-resistant layer; and two ends of thewear-resistant layer are in arc transition. The utility model has the advantages that the large-diameter section is provided with the thermal spraying wear-resistant layer, the wear-resistant layer is subject to polishing processing, so the wear-resistant layer has high surface finish and hardness and low friction coefficient, the wear can be reduced, and simultaneously, the service life of an oil pipe and the sucker rod can be prolonged, thereby the working period of an oil well can be prolonged and the economical benefit can be improved.
Description
Technical field:
The utility model belongs to the rod collar of oil field oil pumping usefulness, is a kind of abrasion-proof sucker rod box cupling.
Background technology:
In the oil pumping system of oil field, R a T has relative contact movement, certainly existing between sucker rod and the oil pipe and rubbing, and the wearing and tearing of sucker rod, oil pipe also just inevitably occurred.Particularly deep-well and inclined shaft, sucker rod is easy to bending in oil pipe, the problem that serious sucker rod partial wear oil pipe occurs, after producing eccentric wear oil pipe and sucker rod can not be used, cause the oil well operation, oil well repair free period is short, increase operating cost, increase rod tube consumption, the oil well off-time is many, reduces crude output.The normal problem that adopts the abrasion-proof sucker rod box cupling to solve oil pipe and sucker rod partial wear on the oil recovery technique, as Chinese patent application 200420029609.3 abrasion-proof sucker rod box cuplings, this rod collar external surface is nonmetal, not wear-resistant, still the problem of oil pipe sucker rod oil pipe eccentric wear occurs, the oil well production cycle is still shorter.
Summary of the invention:
The purpose of this utility model is a kind of abrasion-proof sucker rod box cupling of design, prolongs the application life of sucker rod, reduces oil well operation number of times.
The purpose of this utility model is achieved in that and is metallic object, in the internal thread of the logical connection sucker rod of wearing is arranged, at one end be provided with the plane that pipe wrench is installed, enlarged diameter section is arranged on metallic object, the hot spraying wearing layer is arranged on enlarged diameter section, and the wearing layer two ends are the arc transition.
The beneficial effects of the utility model are: the hot spraying wearing layer is arranged on enlarged diameter section, again wearing layer is polished processing, make its finish height, the hardness height, friction factor is low, and wearing and tearing alleviate, and can prolong oil pipe, sucker rod application life simultaneously, thereby can prolong the oil well work period, increase economic efficiency.
Description of drawings:
Accompanying drawing 1 is a front view of the present utility model.
Accompanying drawing 2 is the sectional views after accompanying drawing 1 is cut open from A-A.
The specific embodiment:
Embodiment of the present utility model describes below in conjunction with accompanying drawing.
Be metallic object 1, in the internal thread 3 of the logical connection sucker rod of wearing is arranged, be connected with sucker rod, at one end be provided with the plane 4 that pipe wrench is installed, on metallic object 1, enlarged diameter section arranged, hot spraying wearing layer 2 is arranged on enlarged diameter section, wearing layer 2 two ends are the arc transition, are convenient to by tubing coupling.Hot spraying wearing layer 2 is an alloy powder, as nickel-base alloy powder.Jetting thickness is greater than 0.25mm, and hardness is higher than HRC50, and is wear-resisting, corrosion-resistant.Processing is polished to the surface in hot spraying wearing layer 2 back, and surface roughness is lower than 0.0004mm, and the friction factor of itself and oil pipe is reduced to below 0.01, and except that self was wear-resisting, the oil pipe that also can not wear and tear had played the effect of bidirectional protective.
Claims (1)
1, a kind of abrasion-proof sucker rod box cupling, be metallic object (1), in the internal thread (3) of the logical connection sucker rod of wearing is arranged, at one end be provided with the plane (4) that pipe wrench is installed, it is characterized in that: on metallic object (1), enlarged diameter section is arranged, hot spraying wearing layer (2) is arranged on enlarged diameter section, and wearing layer (2) two ends are the arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200247511U CN201420511Y (en) | 2009-04-29 | 2009-04-29 | Wear-resistant sucker rod coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200247511U CN201420511Y (en) | 2009-04-29 | 2009-04-29 | Wear-resistant sucker rod coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201420511Y true CN201420511Y (en) | 2010-03-10 |
Family
ID=41807163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200247511U Expired - Fee Related CN201420511Y (en) | 2009-04-29 | 2009-04-29 | Wear-resistant sucker rod coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201420511Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409984A (en) * | 2011-08-28 | 2012-04-11 | 中国石油集团长城钻探工程有限公司 | Wear-resisting area of ring type tool joint |
| CN103089163A (en) * | 2013-01-28 | 2013-05-08 | 北京化工大学 | High abrasion resistant steel-plastic composite coupling |
-
2009
- 2009-04-29 CN CN2009200247511U patent/CN201420511Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409984A (en) * | 2011-08-28 | 2012-04-11 | 中国石油集团长城钻探工程有限公司 | Wear-resisting area of ring type tool joint |
| CN103089163A (en) * | 2013-01-28 | 2013-05-08 | 北京化工大学 | High abrasion resistant steel-plastic composite coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20110429 |