CN201031631Y - Rotary corrector for sucker rod - Google Patents
Rotary corrector for sucker rod Download PDFInfo
- Publication number
- CN201031631Y CN201031631Y CNU2007200227843U CN200720022784U CN201031631Y CN 201031631 Y CN201031631 Y CN 201031631Y CN U2007200227843 U CNU2007200227843 U CN U2007200227843U CN 200720022784 U CN200720022784 U CN 200720022784U CN 201031631 Y CN201031631 Y CN 201031631Y
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- CN
- China
- Prior art keywords
- track
- centralizing
- rod
- cover
- groove
- 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 the rotary centralizer of a sucker rod, which consists of a track centralizing rod, a fixed bush, a centralizing cover and a track pin. The centralizer cover is arranged on the track centralizing rod which has track grooves; the upper and the lower track grooves of the track centralizing rod stagger a certain angle, while the upper track groove is communicated with the lower one by a chute; one part of the track pin is fixed on the centralizing cover and the other part is inserted into the track groove of the track centralizing rod. The fixed bush is connected with the large threads on the upper part of the track centralizing rod. When in operation, the centralizing cover, the track pin and the track centralizing rod can slide relatively. Under the role of the track pin and the track centralizing rod, the centralizing cover, the track pin and the track centralizing rod can also rotate. The whole circumference of the centralizing cover takes abrasion to result in abrasion parts dispersing to the whole surface and avoiding deviation of the centralizing cover, which can prolong the service life of the centralizer, so as to prolong the working circle of an oil well and improve economic benefits.
Description
One, technical field
The utility model belongs to the mechanical device of oil field oil pumping usefulness, particularly a kind of sucker rod rotation centralizer.
Two, 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 oil pumping rod centering device to solve oil pipe and sucker rod partial wear on the oil recovery technique.Existing oil pumping rod centering device kind is more, generally all can not rotate automatically, during work, the supporting positive cover of oil pumping rod centering device can only have a side to contact with tube inner wall, friction position on circumference is constant, cause the eccentric wear of the supporting positive cover of beam hanger centralizer itself to damage, oil well repair free period is still shorter.
Three, summary of the invention
The purpose of this utility model is a kind of sucker rod rotation of design centralizer, make it when work, supporting positive cover can rotate automatically, a flank wear is distributed to whole circumference all participates in wearing and tearing, avoid the supporting positive cover eccentric wear, prolongation wearing-in period at double in the application life of prolongation sucker rod, reduces oil well operation number of times.
The purpose of this utility model is achieved in that by track righting rod, track pin, supporting positive cover to be formed, supporting positive cover is installed on the track righting rod, on the track righting rod rail groove is arranged, groove certain angle that staggered under groove and the track on the track on the track righting rod, and skewed slot UNICOM is arranged between the groove under groove, the track on the track, a track pin part is fixed on the supporting positive cover, a part is inserted in the rail groove of track righting rod, fixedly interstage sleeve connects with track righting rod top major thread, and supporting positive cover is in fixedly under the interstage sleeve.
The beneficial effects of the utility model are: pumpingh well is when work, supporting positive cover can rotate automatically, the whole circumference of supporting positive cover is all participated in wearing and tearing, make the abrading section be distributed to all surfaces, avoid supporting positive cover eccentric wear to occur, can improve the application life of centralizer, thereby can prolong the oil well work period, increase economic efficiency.
Four, description of drawings
Fig. 1 is an assembling drawing of the present utility model.
Fig. 2 is the track expanded view on the part 1 track righting rod in the utility model.
Five, the specific embodiment
Describe below in conjunction with Fig. 1,3 couples of embodiment of the present utility model.
In Fig. 1: the 1st, track righting rod, the 2nd, fixing interstage sleeve, the 3rd, track pin, the 4th, supporting positive cover, the 5th, groove on the track, the 6th, skewed slot, the 7th, groove under the track.Be that the utility model is by track righting rod 1, fixedly interstage sleeve 2, track pin 3, supporting positive cover 4 are formed, supporting positive cover 4 is installed on the track righting rod 1, on the track righting rod 1 rail groove is arranged, groove 7 certain angle that staggered under groove 5 and the track on the track on the track righting rod 1, and skewed slot 6 UNICOMs are arranged between the groove 7 under groove 5, the track on the track, track pin 3 parts are fixed on the supporting positive cover 4, a part is inserted in the rail groove of track righting rod 1, fixedly interstage sleeve 2 connects with track righting rod 1 top major thread, and supporting positive cover 4 is in fixedly under the interstage sleeve 2.Upper and lower side of the present utility model has designed the sucker rod screw thread, and it is connected in the eccentric wear position of back running string on the rod string.During work, supporting positive cover 4 contacts with tube inner wall, under the effect of friction, can slide relatively between supporting positive cover 4, track pin 3 and the track righting rod 1, since groove 7 certain angle that staggered under groove 5 and the track on the track on the track righting rod 1, and skewed slot 6 UNICOMs are arranged between the groove 7 under groove 5, the track on the track, therefore, under the rail effect on track pin 3 and the track righting rod 1, can also relative rotation between supporting positive cover 4, track pin 3 and the track righting rod 1.Under the effect of fixing interstage sleeve 2, supporting positive cover 4 can axial float.
Claims (1)
1. a sucker rod rotates centralizer, by track righting rod (1), track pin (3), supporting positive cover (4) is formed, it is characterized in that: supporting positive cover (4) is installed on the track righting rod (1), the track righting rod has rail groove on (1), groove (7) certain angle that staggered under groove (5) and the track on the track on the track righting rod (1), and groove (5) on the track, skewed slot (6) UNICOM is arranged between the groove under the track (7), track pin (a 3) part is fixed on the supporting positive cover (4), a part is inserted in the rail groove of track righting rod (1), fixedly interstage sleeve (2) connects with track righting rod (1) top major thread, and supporting positive cover (4) is in fixedly under the interstage sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200227843U CN201031631Y (en) | 2007-06-01 | 2007-06-01 | Rotary corrector for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200227843U CN201031631Y (en) | 2007-06-01 | 2007-06-01 | Rotary corrector for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031631Y true CN201031631Y (en) | 2008-03-05 |
Family
ID=39163523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200227843U Expired - Fee Related CN201031631Y (en) | 2007-06-01 | 2007-06-01 | Rotary corrector for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031631Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775964B (en) * | 2010-01-27 | 2013-01-30 | 中国石油大学(华东) | Auto-rotation centralizer with dynamic pressure lubricating effect |
| CN110056322A (en) * | 2019-05-29 | 2019-07-26 | 大庆华油石油科技开发有限公司 | A kind of gravity seat card tubing anchor of oil well |
-
2007
- 2007-06-01 CN CNU2007200227843U patent/CN201031631Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775964B (en) * | 2010-01-27 | 2013-01-30 | 中国石油大学(华东) | Auto-rotation centralizer with dynamic pressure lubricating effect |
| CN110056322A (en) * | 2019-05-29 | 2019-07-26 | 大庆华油石油科技开发有限公司 | A kind of gravity seat card tubing anchor of oil well |
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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 |