CN2646368Y - Eccentric proof grinding pair for oil tube and sucker rod - Google Patents
Eccentric proof grinding pair for oil tube and sucker rod Download PDFInfo
- Publication number
- CN2646368Y CN2646368Y CN 03271902 CN03271902U CN2646368Y CN 2646368 Y CN2646368 Y CN 2646368Y CN 03271902 CN03271902 CN 03271902 CN 03271902 U CN03271902 U CN 03271902U CN 2646368 Y CN2646368 Y CN 2646368Y
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- CN
- China
- Prior art keywords
- rod
- oil
- abrasionproof
- wear proof
- wear
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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 relates to an oil extraction pipe and oil pumping rod eccentric wear auxiliary component used in the oil industry, which consists of an oil pumping rod coupling, an upper loosening prevention hood, a wear proof rod, a wear proof lining, a righting body, and a setscrew nut and a lower loosening prevention hood; wherein the oil pumping rod coupling and the upper loosening proof hood are connected with the upper part of the wear proof rod; while the oil rod coupling is arranged above the loosening prevention hood; and the wear proof lining is sleeved on the wear proof rod; the righting hood is sleeved on the outer surface of the wear proof lining; while the setscrew nut is connected with the lower end screw of the wear proof lining, and the lower loosening prevention hood is connected with the lower part screw of the wear proof rod. As the righting body remains still when pumping the oil, thus the righting body can not be worn by rubbing on the inner surface of the relatively coarse oil pipe; and as the rod body surface of the wear proof rod and the inner surface of the wear proof lining are quite smooth, therefore the opposite sliding between the two surfaces can be avoided, and the two surfaces are not easy to be worn. Thus, the utility model not only can ensure that the non abrasion of the oil pipes and oil pumping rods but also the relatively higher service life; and in addition, the upper and lower parts of the wear proof rod have the loosening prevention hoods, the utility model can be prevented from treading off with high reliability.
Description
One, technical field
The utility model relates to the oil production equipment of petroleum industry, particularly a kind of oil pipe, the anti-eccentric wear pair of sucker rod.
Two, background technology
In sucker-rod pumping system, no matter be straight well or inclined shaft, R a T all is relative motion in contact, therefore, exist inevitable wearing and tearing between sucker rod and the oil pipe, particularly deep-well and inclined shaft, sucker rod is easy to bending in oil pipe, the problem of serious sucker rod partial wear oil pipe occurs, behind the generation eccentric wear oil pipe and sucker rod can not be used, cause the oil well operation, oil well repair free period is short, increases operating cost, increases rod tube consumption, the oil well off-time is many, has reduced crude output.
Three, summary of the invention
The purpose of this utility model is a kind of long service life of design, and the anti-eccentric wear pair of the oil pipe of the oil pipe that do not wear and tear again, sucker rod avoids sucker rod the problem of sucker rod, oil pipe eccentric wear to occur in the bending of oil pipe internal cause, inclination.
The purpose of this utility model be achieved in that it by rod collar, go up locking cap, abrasionproof bar, abrasionproof lining, centralizer body, hold-doun nut, locking cap is formed down.Rod collar, last locking cap and abrasionproof bar top thread connection, rod collar is on last locking cap, the abrasionproof lining is sleeved on the abrasionproof bar, abrasionproof sleeve outer surface upper diameter is big, and lower diameter is little, and there is screw thread the bottom, centralizer body is sleeved on the minor diameter of abrasionproof sleeve outer surface bottom, hold-doun nut and abrasionproof lining bottom thread connection make abrasionproof lining, centralizer body, hold-doun nut be assembled into one, and can slide on the abrasionproof bar.Locking cap connects with abrasionproof bar lower thread down.Rod collar top connects sucker rod, and abrasionproof bar lower thread connects sucker rod.Abrasionproof club shaft surface, abrasionproof sleeve inner surface are processed into smooth surface.During oil pumping, the abrasionproof bar is synchronized with the movement with sucker rod is upper and lower, because the frictional force of centralizer body and pipe inner surface is greater than the frictional force of abrasionproof lining and abrasionproof bar, so centralizer body does not move during oil pumping.
The beneficial effects of the utility model are: centralizer body does not move during owing to oil pumping, centralizer body can not rub on more coarse pipe inner surface and wear and tear, again because the body of rod of abrasionproof bar surface and abrasionproof sleeve inner surface are very smooth, though relative slip is arranged between them, also be not easy wearing and tearing, therefore, this oil pipe, the anti-eccentric wear pair of sucker rod can guarantee that oil pipe, sucker rod do not wear and tear, and can also guarantee to have higher application life.There is locking cap abrasionproof bar upper and lower part, does not have the dropout problem, and the reliability height is easy for installation, and functional performance is good.
Four, description of drawings
Accompanying drawing is the secondary assembling drawing of the anti-eccentric wear of the utility model oil pipe, sucker rod.
Five, the specific embodiment
As shown in the figure, it is made up of rod collar 1, last locking cap 2, abrasionproof bar 3, abrasionproof lining 4, centralizer body 5, hold-doun nut 6, following locking cap 7.Rod collar 1, upward locking cap 2 and abrasionproof bar 3 top thread connection, rod collar 1 is on last locking cap 2, abrasionproof lining 4 is sleeved on the abrasionproof bar 3, abrasionproof lining 4 external surface upper diameter are big, lower diameter is little, there is screw thread the bottom, and centralizer body 5 is sleeved on the abrasionproof lining 4 external surface bottom minor diameters, and centralizer body 5 external surfaces had oily straight trough or helicla flute.Hold-doun nut 6 and abrasionproof lining 4 bottom thread connection make abrasionproof lining 4, centralizer body 5, hold-doun nut 6 be assembled into one, and can slide on abrasionproof bar 3.Locking cap 7 connects with abrasionproof bar 3 lower thread down.Rod collar 1 top connects sucker rod, and abrasionproof bar 3 lower thread connect sucker rod.Abrasionproof bar 3 body of rod surfaces, abrasionproof lining 4 inner surfaces are processed into smooth surface.During oil pumping, abrasionproof bar 3 is synchronized with the movement with sucker rod is upper and lower, because the frictional force of centralizer body 5 and pipe inner surface is greater than the frictional force of abrasionproof lining 4 with abrasionproof bar 3, so centralizer body 5 does not move during oil pumping.
Claims (2)
1, a kind of oil pipe, sucker rod is prevented the eccentric wear pair, by rod collar (1), go up locking cap (2), abrasionproof bar (3), abrasionproof lining (4), centralizer body (5), hold-doun nut (6), locking cap (7) is formed down, it is characterized in that: rod collar (1), go up locking cap (2) and abrasionproof bar (3) top thread connection, rod collar (1) is on last locking cap (2), abrasionproof lining (4) is sleeved on the abrasionproof bar (3), centralizer body (5) is sleeved on abrasionproof lining (4) external surface, hold-doun nut (6) and abrasionproof lining (4) bottom thread connection, following locking cap (7) connects with abrasionproof bar (3) lower thread.
2, oil pipe according to claim 1, the anti-eccentric wear pair of sucker rod, it is characterized in that: abrasionproof lining (4) external surface upper diameter is big, and lower diameter is little, and there is screw thread the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271902 CN2646368Y (en) | 2003-07-04 | 2003-07-04 | Eccentric proof grinding pair for oil tube and sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271902 CN2646368Y (en) | 2003-07-04 | 2003-07-04 | Eccentric proof grinding pair for oil tube and sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646368Y true CN2646368Y (en) | 2004-10-06 |
Family
ID=34300901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03271902 Expired - Fee Related CN2646368Y (en) | 2003-07-04 | 2003-07-04 | Eccentric proof grinding pair for oil tube and sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646368Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883264A (en) * | 2014-03-21 | 2014-06-25 | 中国石油天然气股份有限公司冀东油田分公司钻采工艺研究院 | Ceramic coating anti-eccentric drill column antifriction torque-reducing pup joint |
| CN106996274A (en) * | 2017-05-05 | 2017-08-01 | 西南石油大学 | A kind of righting structure of anti-sucker rod pumping pump plunger eccentric wear |
| CN116856866A (en) * | 2023-09-01 | 2023-10-10 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for sucker rod |
-
2003
- 2003-07-04 CN CN 03271902 patent/CN2646368Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883264A (en) * | 2014-03-21 | 2014-06-25 | 中国石油天然气股份有限公司冀东油田分公司钻采工艺研究院 | Ceramic coating anti-eccentric drill column antifriction torque-reducing pup joint |
| CN106996274A (en) * | 2017-05-05 | 2017-08-01 | 西南石油大学 | A kind of righting structure of anti-sucker rod pumping pump plunger eccentric wear |
| CN116856866A (en) * | 2023-09-01 | 2023-10-10 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for sucker rod |
| CN116856866B (en) * | 2023-09-01 | 2023-12-15 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for 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 |