CN201090150Y - Pumping rod double-acting centralizer - Google Patents
Pumping rod double-acting centralizer Download PDFInfo
- Publication number
- CN201090150Y CN201090150Y CNU2007200296839U CN200720029683U CN201090150Y CN 201090150 Y CN201090150 Y CN 201090150Y CN U2007200296839 U CNU2007200296839 U CN U2007200296839U CN 200720029683 U CN200720029683 U CN 200720029683U CN 201090150 Y CN201090150 Y CN 201090150Y
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- CN
- China
- Prior art keywords
- rod
- track
- groove
- centering
- pumping
- 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 pumping rod double-effect centralizer, which is composed of a female clipping connector, a centering rod, track pins, and a centering sleeve. The centering sleeve is installed on the centering rod, the lower part of the female clipping connector is connected at the upper part of the centering rod, pumping rod inner thread is arranged at the upper part of the female clipping connector, track grooves are arranged on the centering rod, the track upper groove on the centering rod staggers a certain angle to the track lower groove, a sloping groove is connected between the track upper groove and the track lower groove, a part of the track pins are fixed on the centering sleeve, and the other are inserted into the upper grooves of the centering rod. When the pumping well is operated, the centering sleeve rotates automatically, the service life is long, the working period of the oil well can be prolonged, the pumping rod inner thread arranged at the upper part of the female clipping connector can perform the effect of the coupler of the pumping rod, when the utility model is connected with the field pumping rod, other connectors are not required, the tool amount is reduced, and the reliability of the rod column is improved.
Description
One, technical field
The utility model belongs to the device of oil field oil pumping usefulness, particularly a kind of sucker rod double acting centralizer.
Two, background technology
In oil field oil pumping deep-well and inclined shaft, the problem of sucker rod partial wear oil pipe appears, cause the oil well operation, increase operating cost, reduce 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, the supporting positive cover of oil pumping rod centering device can only have a side to contact with tube inner wall, cause the eccentric wear of the supporting positive cover of beam hanger centralizer itself to damage, oil well repair free period is still shorter, and connector is many, the rod string poor reliability.
Three, summary of the invention
The purpose of this utility model is a kind of sucker rod double acting centralizer of design, makes it when work, and supporting positive cover can rotate automatically, without other connector, improves the reliability of rod string.
The purpose of this utility model is achieved in that by box joint, righting rod, track pin, supporting positive cover to be formed, supporting positive cover is installed on the righting rod, box joint bottom connects with righting rod top, the sucker rod internal thread is arranged at box joint top, rail groove is arranged on the righting rod, groove certain angle that staggered under groove and the track on the track on the righting rod, 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, and a part is inserted in the rail groove of righting rod.
The beneficial effects of the utility model are: pumpingh well is when work, supporting positive cover rotates automatically, long service life, can prolong the oil well work period, the sucker rod internal thread is arranged at box joint top, can play the effect of rod collar, does not need other joint when connecting with on-the-spot sucker rod, minimizing instrument consumption, the reliability of raising roofbolt.
Four, description of drawings
Fig. 1 is an assembling drawing of the present utility model.
Fig. 2 is the track expanded view on part 1 righting rod in the utility model.
Five, the specific embodiment
Describe below in conjunction with Fig. 1,2 couples of embodiment of the present utility model.
Form by box joint 1, righting rod 2, track pin 3, supporting positive cover 4, supporting positive cover 4 is installed on the righting rod 2, box joint 1 bottom connects with righting rod 2 tops, the sucker rod internal thread is arranged at box joint 1 top, on the righting rod 2 rail groove is arranged, groove 7 certain angle that staggered under groove 5 and the track has skewed slot 6 UNICOMs on the track on the righting rod 2 between the groove 7 under groove 5, the track on the track, track pin 3 parts are fixed on the supporting positive cover 4, and a part is inserted in the rail groove of righting rod 2.
Claims (1)
1. sucker rod double acting centralizer, by box joint (1), righting rod (2), track pin (3), supporting positive cover (4) is formed, it is characterized in that: supporting positive cover (4) is installed on the righting rod (2), box joint (1) bottom connects with righting rod (2) top, the sucker rod internal thread is arranged at box joint (1) top, righting rod has rail groove on (2), groove (7) certain angle that staggered under groove (5) and the track on the track on the righting rod (2), groove on the track (5), 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), and a part is inserted in the rail groove of righting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200296839U CN201090150Y (en) | 2007-10-27 | 2007-10-27 | Pumping rod double-acting centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200296839U CN201090150Y (en) | 2007-10-27 | 2007-10-27 | Pumping rod double-acting centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090150Y true CN201090150Y (en) | 2008-07-23 |
Family
ID=39861910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200296839U Expired - Fee Related CN201090150Y (en) | 2007-10-27 | 2007-10-27 | Pumping rod double-acting centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090150Y (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 |
| CN106089120A (en) * | 2016-04-07 | 2016-11-09 | 西南石油大学 | Big V-type rotary coupling centralizer |
-
2007
- 2007-10-27 CN CNU2007200296839U patent/CN201090150Y/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 |
| CN106089120A (en) * | 2016-04-07 | 2016-11-09 | 西南石油大学 | Big V-type rotary coupling centralizer |
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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 |