CN201306130Y - Automatic righting and anti-abrasion device for pumping rod - Google Patents
Automatic righting and anti-abrasion device for pumping rod Download PDFInfo
- Publication number
- CN201306130Y CN201306130Y CNU2008201724091U CN200820172409U CN201306130Y CN 201306130 Y CN201306130 Y CN 201306130Y CN U2008201724091 U CNU2008201724091 U CN U2008201724091U CN 200820172409 U CN200820172409 U CN 200820172409U CN 201306130 Y CN201306130 Y CN 201306130Y
- Authority
- CN
- China
- Prior art keywords
- righting
- rod
- special
- positive cover
- wall
- 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
Links
Images
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
An automatic righting and anti-abrasion device for pumping rod comprises an upper connector and a righting rod, wherein the upper connector is connected with the upper part of the righting rod; a special righting sleeve is sleeved on the righting rod; the section of the special righting sleeve takes the shape of an ellipse. Bearings are sleeved on the righting rod and arranged at both ends of the special righting sleeve; the radius of the big arc surface of the special righting sleeve is close to that of inner wall of a matched oil pipe; the lower part of the righting rod us connected with a lower connector; the section of the special righting sleeve takes the shape of an ellipse; the radius of the big arc surface is close to that of inner wall of a matched oil pipe, and the area contacting with the inner wall of the oil pipe is large, and the positive pressure is small, thereby reducing abrasion; the area of the cross section of the special righting sleeve is small, and the flow area is large, so that the oil flow resistance is small, and curving degree is lessened when the pumping rod descends, and meanwhile the abrasion is reduced and the production period of an oil well is prolonged.
Description
Technical field:
The utility model is the mechanical device that oil field pumping well is used, particularly a kind of sucker rod automatic righting anti-abrasion device.
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, the problem of sucker rod partial wear oil pipe occurring, behind the generation eccentric wear oil pipe and sucker rod can not 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, reduces crude output.The normal problem that adopts oil pumping rod centering device to solve oil pipe and sucker rod partial wear on the oil recovery technique.The supporting positive cover of existing oil pumping rod centering device is cylindrical, and little with the tube inner wall contact area on the one hand, normal pressure is big, quick abrasion, and area of passage is little on the other hand, increases oil flow resistance, makes the descending difficulty of sucker rod cause rod sag, the aggravation wearing and tearing.
Summary of the invention:
The purpose of this utility model provides a kind of sucker rod automatic righting anti-abrasion device, makes itself and tube inner wall contact area big, is not easy wearing and tearing, and area of passage is big, and oil flow resistance is little.
The utility model is achieved in that by top connection, righting rod to be formed, and top connection connects with righting rod top, and special-shaped supporting positive cover is sleeved on the righting rod, and special-shaped supporting positive cover cross section is oval.
Bearing set on the righting rod, bearing are in special-shaped supporting positive cover two ends.
The radius of abnormity supporting positive cover great circle cambered surface is close with supporting tube inner wall radius.
The righting rod bottom connects lower contact.
The beneficial effects of the utility model are: special-shaped supporting positive cover can rotate, and the cross section is oval, and the radius of great circle cambered surface and supporting tube inner wall radius are close, the great circle cambered surface contacts with tube inner wall automatically during oil pumping, and therefore, contact area is big, normal pressure is little, can alleviate wearing and tearing, the cross sectional area of special-shaped supporting positive cover is little, and area of passage is big, oil flow resistance is little, degree of crook alleviated when sucker rod was descending, also can alleviate wearing and tearing, prolonged the oil well production cycle.
Description of drawings:
Accompanying drawing 1 be the utility model embodiment partly cut open assembling drawing.
Accompanying drawing 2 is cross-sectional views of part 3 in the accompanying drawing 1.
The specific embodiment:
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Be made up of top connection 1, bearing 2, special-shaped supporting positive cover 3, righting rod 4, lower contact 5, top connection 1 connects with righting rod 4 tops, and special-shaped supporting positive cover 3 is sleeved on the righting rod 4, and special-shaped supporting positive cover 3 cross sections are oval.Bearing set 2 on the righting rod 4, and bearing 2 is in special-shaped supporting positive cover 3 two ends, and the effect of bearing 2 is the rotational resistances that alleviate special-shaped supporting positive cover 3.The radius of abnormity supporting positive cover 3 great circle cambered surfaces is close with supporting tube inner wall radius, increases the contact area with tube inner wall.Righting rod 4 bottoms connect lower contact 5.
Abnormity supporting positive cover 3 can rotate on righting rod 4, guarantees that the great circle cambered surface contacts with tube inner wall.
Claims (4)
1, a kind of sucker rod automatic righting anti-abrasion device is made up of top connection (1), righting rod (4), and top connection (1) connects with righting rod (4) top, it is characterized in that: special-shaped supporting positive cover (3) is sleeved on the righting rod (4), and special-shaped supporting positive cover (3) cross section is oval.
2, sucker rod automatic righting anti-abrasion device according to claim 1 is characterized in that: righting rod (4) is gone up bearing set (2), and bearing (2) is in special-shaped supporting positive cover (3) two ends.
3, sucker rod automatic righting anti-abrasion device according to claim 1 is characterized in that: the radius of special-shaped supporting positive cover (3) great circle cambered surface is close with supporting tube inner wall radius.
4, sucker rod automatic righting anti-abrasion device according to claim 1 is characterized in that: righting rod (4) bottom connects lower contact (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201724091U CN201306130Y (en) | 2008-09-24 | 2008-09-24 | Automatic righting and anti-abrasion device for pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201724091U CN201306130Y (en) | 2008-09-24 | 2008-09-24 | Automatic righting and anti-abrasion device for pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306130Y true CN201306130Y (en) | 2009-09-09 |
Family
ID=41098597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201724091U Expired - Fee Related CN201306130Y (en) | 2008-09-24 | 2008-09-24 | Automatic righting and anti-abrasion device for pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306130Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864911A (en) * | 2010-06-22 | 2010-10-20 | 陈宁 | Automatic righting anti-abrasion body of oil pumping rod |
| CN105422017A (en) * | 2015-12-31 | 2016-03-23 | 燕山大学 | Drill rod joint with resistance reduction and wear reduction functions |
-
2008
- 2008-09-24 CN CNU2008201724091U patent/CN201306130Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864911A (en) * | 2010-06-22 | 2010-10-20 | 陈宁 | Automatic righting anti-abrasion body of oil pumping rod |
| CN105422017A (en) * | 2015-12-31 | 2016-03-23 | 燕山大学 | Drill rod joint with resistance reduction and wear reduction functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201306130Y (en) | Automatic righting and anti-abrasion device for pumping rod | |
| CN201292782Y (en) | Canula mobile type cardan joint | |
| CN201695962U (en) | Centralizer of sucker rod | |
| CN201560722U (en) | Anti-bias wear oil pumping rod centralizer | |
| CN201909043U (en) | High-temperature and high-pressure butterfly valve of bidirectional-flow and self-seal elastic valve seat | |
| CN201526286U (en) | Sucker rod centralizer | |
| CN201695963U (en) | Automatic centralizing anti-wear body of sucker rod | |
| CN201460754U (en) | Sucker rod with eccentric wear prevention | |
| CN201507247U (en) | Sucker rod centralizer | |
| CN201695960U (en) | Wear-resistant collar of sucker rod | |
| CN201090150Y (en) | Pumping rod double-acting centralizer | |
| CN201031631Y (en) | Rotary corrector for sucker rod | |
| CN201818249U (en) | Positioning anti-eccentric wear device | |
| CN2903340Y (en) | Bended sucker rod centering guide | |
| CN201041005Y (en) | Anti-grinding pair of hollow pumping rod | |
| CN201206441Y (en) | Bolt guiding and righting fittings | |
| CN103334705A (en) | Novel sucker rod centering device | |
| CN2646368Y (en) | Eccentric proof grinding pair for oil tube and sucker rod | |
| CN2861452Y (en) | Flexible sucker rod centering device | |
| CN214532900U (en) | Follow-up high-efficiency energy-saving paraffin scraper | |
| CN2763474Y (en) | Drop-proof wearing-resisting centrilizer | |
| CN201972628U (en) | Antifriction device for hollow sucker rod | |
| CN201059169Y (en) | Sucker rod elastic centralizer | |
| CN2821136Y (en) | Improvement of position limit type oil pumping rod collar clamp centralizer | |
| CN101864911A (en) | Automatic righting anti-abrasion body of oil pumping rod |
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: 20090909 Termination date: 20110924 |