CN2764921Y - Double protection wear-resistant pump rod joint - Google Patents
Double protection wear-resistant pump rod joint Download PDFInfo
- Publication number
- CN2764921Y CN2764921Y CN 200520020231 CN200520020231U CN2764921Y CN 2764921 Y CN2764921 Y CN 2764921Y CN 200520020231 CN200520020231 CN 200520020231 CN 200520020231 U CN200520020231 U CN 200520020231U CN 2764921 Y CN2764921 Y CN 2764921Y
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- oil pipe
- utility
- model
- wear
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a double-protection wear preventing sucker rod coupling. The utility model mainly solves the problems that the eccentric wear of a sucker rod and an oil pipe causes the sucker rod to worn to break or the oil pipe to be worn to leak. The utility model is characterized in that both end surface positions of a coupling body (1) are both sheathed with wear preventing covers (2) which are made of smooth non-metal materials. The double-protection wear preventing sucker rod coupling causes the sucker rod to complete avoid the contact friction of metal between the sucker rod coupling and the oil pipe when the sucker rod moves in an oil well pit shaft, the wear between the sucker rod and the oil pipe is effectively prevented, and the utility model has the characteristics of simple structure and convenient use.
Description
Technical field:
The utility model relates to used rod collar in the oil recovery field, oil field, especially two protection abrasionproof rod collars.
Background technology:
In the oil recovery process of oil field, pumping production is widespread usage, owing to there is the eccentric wear phenomenon of a large amount of sucker rods and oil pipe, causes because of sucker rod rubs or pump detection and workover is carried out in the leakage of oil pipe mill, and economic loss is huge.
The utility model content:
For the problem that the eccentric wear that solves sucker rod and oil pipe causes sucker rod to rub or the oil pipe mill leaks; the utility model provides a kind of two protection abrasionproof rod collar; when moving sucker rod in well wellbore, this pair protection abrasionproof rod collar avoided the contact friction of metal between rod collar and the oil pipe fully; prevent the wearing and tearing between sucker rod and the oil pipe effectively, had characteristics simple in structure, easy to use.
The technical solution of the utility model is: this pair protection abrasionproof rod collar comprises the box cupling body, and two ends of box cupling body all are set with the anti-eccentric wear cover that smooth nonmetals are made.
The utlity model has following beneficial effect: owing to take two ends of the box cupling body in the such scheme all to be set with the anti-eccentric wear cover that smooth nonmetals are made, make the metal friction of rod collar body and tube inner wall change the outer wall of anti-eccentric wear cover and the friction of tube inner wall into, because anti-eccentric wear cover is that smooth nonmetals are made, the coefficient of friction of itself and steel tube inner wall only be between steel and the steel coefficient of friction 4.2%, make its abrasion resistance improve more than 20 times, when moving, this box cupling avoided the contact friction of metal between rod collar body and the oil pipe fully in well wellbore, the wearing and tearing of rod collar and oil pipe have been prevented effectively, simple in structure, easy to use, be the present cost-effective instrument that prevents rod collar and oil pipe eccentric wear.
Description of drawings:
Accompanying drawing 1 is a structure sectional view of the present utility model.
1-box cupling body among the figure, 2-prevents the eccentric wear cover.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, this pair protection abrasionproof rod collar comprises box cupling body 1, and two ends of box cupling body 1 all are set with the anti-eccentric wear cover 2 that smooth nonmetals are made.This box cupling in use, make the rod collar body 1 and the metal friction of tube inner wall change the outer wall of anti-eccentric wear cover 2 and the friction of tube inner wall into, because anti-eccentric wear cover 2 is made for smooth nonmetals, the coefficient of friction of itself and steel tube inner wall only be between steel and the steel coefficient of friction 4.2%, make its abrasion resistance improve more than 20 times, when moving, this box cupling avoided the contact friction of metal between rod collar body 1 and the oil pipe fully in well wellbore, the wearing and tearing of rod collar and oil pipe have been prevented effectively, simple in structure, easy to use, be the present cost-effective instrument that prevents rod collar and oil pipe eccentric wear.
Claims (1)
1, a kind of two protection abrasionproof rod collar comprises box cupling body (1), and it is characterized in that: two ends of box cupling body (1) all are set with the anti-eccentric wear cover (2) that smooth nonmetals are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520020231 CN2764921Y (en) | 2005-01-30 | 2005-01-30 | Double protection wear-resistant pump rod joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520020231 CN2764921Y (en) | 2005-01-30 | 2005-01-30 | Double protection wear-resistant pump rod joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2764921Y true CN2764921Y (en) | 2006-03-15 |
Family
ID=36167840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520020231 Expired - Fee Related CN2764921Y (en) | 2005-01-30 | 2005-01-30 | Double protection wear-resistant pump rod joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2764921Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839114A (en) * | 2010-02-21 | 2010-09-22 | 吴永堂 | Energy-saving anticorrosive abrasion-proof sucker rod |
-
2005
- 2005-01-30 CN CN 200520020231 patent/CN2764921Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839114A (en) * | 2010-02-21 | 2010-09-22 | 吴永堂 | Energy-saving anticorrosive abrasion-proof sucker rod |
| CN101839114B (en) * | 2010-02-21 | 2013-02-13 | 吴永堂 | Energy-saving anticorrosive abrasion-proof sucker rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |