CN2632295Y - Stabilizer for sucking rod against wearing eccentrically - Google Patents
Stabilizer for sucking rod against wearing eccentrically Download PDFInfo
- Publication number
- CN2632295Y CN2632295Y CN 03205080 CN03205080U CN2632295Y CN 2632295 Y CN2632295 Y CN 2632295Y CN 03205080 CN03205080 CN 03205080 CN 03205080 U CN03205080 U CN 03205080U CN 2632295 Y CN2632295 Y CN 2632295Y
- Authority
- CN
- China
- Prior art keywords
- rod
- oil
- pumping rod
- sucker rod
- sleeve
- 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 deviation control oil pumping rod coadjutor which comprises an oil pumping rod, an abrasion proof sleeve and a stabilizing sleeve. The inner diameter of the stabilizing sleeve is slightly bigger than the diameter of the oil pumping rod head, which can be coupled on the rod body of the oil-pumping rod from the rod head of the oil-pumping rod. An assembling groove is machined in the abrasion proof sleeve. The utility model can be installed on the rod body of the oil-pumping rod through the assembling groove without need of the rod head of the oil-pumping rod. The intermediate thread of the abrasion proof sleeve is connected to the upper thread of the stabilizing sleeve. When the oil pumping rod moves up and down, the deviation control oil pumping rod coadjutor does not move, the stabilizing sleeve is not abraded on the rough inner surface of the oil pipe, the life of the stabilizing sleeve is long. So the deviation control oil pumping rod coadjutor not only ensures no abrasion of the oil pipe and the oil pumping rod but also ensures long service life of the stabilizing sleeve. Because no other forced parts are added in the oil-pumping rod, there is no problem of fracture and falling. The number of parts is small, the reliability is high, the installation is convenient and the cost is low.
Description
One, technical field
The utility model is the equipment of oil field oil recovery usefulness, and particularly a kind of eccentric wear prevention pumping rod centralizer belongs to engineering goods.
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, exists inevitable wear problem between sucker rod and the oil pipe.For avoiding oil pipe, sucker rod wear problems occurring, the normal oil pumping rod centering device that adopts on the oil recovery technique.Existing oil pumping rod centering device kind is more; generally all be to be fixed on the sucker rod; be synchronized with the movement with sucker rod; nonmetals and tube inner wall during oil pumping on the centralizer are done relative motion, because nonmetals are soft, oil pipe can not wear and tear; played temporary transient protective effect; but the non-metallic material grinding abrasion is very fast, and the time of protection oil pipe, sucker rod is short, and heavy wear still appears in oil pipe, oil pick-up tube.
Three, summary of the invention
The purpose of this utility model is a kind of long-life eccentric wear prevention pumping rod centralizer of design, avoids sucker rod sucker rod, oil pipe wear problems to occur in the bending of oil pipe internal cause, inclination.The purpose of this utility model is achieved in that by sucker rod, abrasionproof lining, supporting positive cover to be formed.The supporting positive cover internal diameter is a bit larger tham the sucker rod head diameter, it can be inserted on the sucker rod body of rod from sucker rod head, has processed fitting recess on the abrasionproof lining, makes it not need just can be installed on the body of rod of sucker rod by sucker rod head by fitting recess.Abrasionproof lining middle part screw thread and supporting positive cover top thread connection.The abrasionproof lining adopts metal material, and inner surface is very smooth, and supporting positive cover is wear-resisting soft material, and the eccentric wear prevention pumping rod centralizer can slide on the body of rod of sucker rod.During oil pumping, the upper and lower motion of sucker rod is because the frictional force of supporting positive cover and pipe inner surface is greater than the frictional force of abrasionproof lining and sucker rod, so supporting positive cover does not move during oil pumping.
The beneficial effects of the utility model are: the eccentric wear prevention pumping rod centralizer can slide on the body of rod of sucker rod, and sucker rod has been played good centralizing function, can alleviate the degree of crook of sucker rod in oil pipe, thereby alleviates oil pipe, sucker rod wearing and tearing.Supporting positive cover is wear-resisting soft material, can not damage oil pipe, and during because of the upper and lower motion of sucker rod, the eccentric wear prevention pumping rod centralizer does not move, and supporting positive cover can not rub on more coarse pipe inner surface and wear and tear, and the supporting positive cover life-span is long.The abrasionproof sleeve inner surface is very smooth, though it with sucker rod between relative slip is arranged, also be not easy wearing and tearing.Therefore, the eccentric wear prevention pumping rod centralizer can guarantee that oil pipe, sucker rod do not wear and tear, and can also guarantee that supporting positive cover has higher application life.Owing to do not increase all the other stressed members on rod string, not existing breaks takes off problem, and component are few, the reliability height, and easy for installation, cost is low, and functional performance is good.
Four, description of drawings
Fig. 1 is the utility model embodiment assembling drawing.
Fig. 2 is the front view of part 2 among Fig. 1.
Fig. 3 is the sectional view after part 2 is cut open from A-A among Fig. 1.
Fig. 4 is the sectional view after part 2 is cut open from B-B among Fig. 1.
Five, the specific embodiment
Embodiment describes below in conjunction with accompanying drawing.
As shown in the figure: the 1st, sucker rod, the 2nd, abrasionproof lining, the 3rd, supporting positive cover.Be that the utility model embodiment is made up of sucker rod 1, abrasionproof lining 2, supporting positive cover 3.Supporting positive cover 3 internal diameters are a bit larger tham the sucker rod head diameter, its bar head from sucker rod 1 can be inserted on the body of rod of sucker rod 1, processed fitting recess on the abrasionproof lining 2, shown in Fig. 2,3,4, made it not need just can be installed on the body of rod of sucker rod 1 by the bar head of sucker rod 1 by fitting recess.Abrasionproof lining 2 middle part screw threads and supporting positive cover 3 top thread connection.Abrasionproof lining 2 adopts metal material, and inner surface is very smooth, and supporting positive cover 3 is wear-resisting soft material, and the eccentric wear prevention pumping rod centralizer can slide on the body of rod of sucker rod.During oil pumping, the upper and lower motion of sucker rod is because the frictional force of supporting positive cover 3 and pipe inner surface is greater than the frictional force of abrasionproof lining 2 with sucker rod 1, so supporting positive cover does not move during oil pumping.Supporting positive cover 3 external surfaces had oily straight trough or helicla flute.
Claims (1)
1, a kind of eccentric wear prevention pumping rod centralizer, form by sucker rod (1), abrasionproof lining (2), supporting positive cover (3), it is characterized in that: supporting positive cover (3) internal diameter is a bit larger tham the sucker rod head diameter, its bar head from sucker rod (1) can be inserted on the body of rod of sucker rod (1), the abrasionproof lining has been processed fitting recess on (2), make it not need just can be installed on the body of rod of sucker rod (1) by fitting recess, abrasionproof lining (2) middle part screw thread and supporting positive cover (3) top thread connection by the bar head of sucker rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205080 CN2632295Y (en) | 2003-07-22 | 2003-07-22 | Stabilizer for sucking rod against wearing eccentrically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205080 CN2632295Y (en) | 2003-07-22 | 2003-07-22 | Stabilizer for sucking rod against wearing eccentrically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2632295Y true CN2632295Y (en) | 2004-08-11 |
Family
ID=34287620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03205080 Expired - Fee Related CN2632295Y (en) | 2003-07-22 | 2003-07-22 | Stabilizer for sucking rod against wearing eccentrically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2632295Y (en) |
-
2003
- 2003-07-22 CN CN 03205080 patent/CN2632295Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG KUN Free format text: FORMER OWNER: SHANG XINGBIN Effective date: 20050401 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050401 Address after: 1-667 mailbox, Shengli oil production plant, Dongying District, Shandong, Dongying 257051, China Patentee after: Wang Kun Address before: 2-115 mailbox, Shengli oil production plant, Dongying District, Shandong, Dongying 257051, China Patentee before: Shang Xingbin |
|
| 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 |