CN2784574Y - Rotary centralizer for sucker rod - Google Patents
Rotary centralizer for sucker rod Download PDFInfo
- Publication number
- CN2784574Y CN2784574Y CN 200520002916 CN200520002916U CN2784574Y CN 2784574 Y CN2784574 Y CN 2784574Y CN 200520002916 CN200520002916 CN 200520002916 CN 200520002916 U CN200520002916 U CN 200520002916U CN 2784574 Y CN2784574 Y CN 2784574Y
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- CN
- China
- Prior art keywords
- track
- centralizing
- rod
- sleeve
- 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 a rotary centralizer for a sucker rod, which is used for pumping oil in oil fields. The utility model is composed of a track centralizing rod, a centralizing sleeve and a track male pin, wherein the centralizing sleeve is installed on the track centralizing rod, certain sliding stroke is arranged between the centralizing sleeve and the track centralizing rod in the axial direction, a rack groove is arranged on the track centralizing rod, one part of the track male pin is fixed on the centralizing sleeve and the other part is inserted in track groove of the track centralizing rod. When working, the centralizing sleeve is in contact with the internal wall of an oil conduit. Under the action of friction, relative sliding can be generated among the centralizing sleeve, the track male pin and the track centralizing rod. Under the action of the track male pin and the track on the track centralizing rod, relative rotation can be generated among the centralizing sleeve, the track male pin and the track centralizing rod. The entire circumference of the centralizing sleeve are all worn, the worn part are dispersed on the whole surface, the eccentric wear of the centralizing sleeve is prevented, the service life of the centralizer can be extended and the working period of an oil well is extended.
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 it is made up of track righting rod, supporting positive cover, track pin.Supporting positive cover is installed on the track righting rod, between supporting positive cover and the track righting rod certain sliding stroke is arranged in the axial direction, on the track righting rod rail groove is arranged, and a track pin part is fixed on the supporting positive cover, and a part is inserted in the rail groove of track righting rod.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 contacts with tube inner wall, under the effect of friction, can slide relatively between supporting positive cover, track pin and the track righting rod, since 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, therefore, under the rail effect on track pin and the track righting rod, can also relative rotation between supporting positive cover, track pin and the track righting rod.
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. 1,2 couples of embodiment of the present utility model.
In Fig. 1: the 1st, track righting rod, the 2nd, track pin, the 3rd, supporting positive cover.Be that the utility model is made up of track righting rod 1, track pin 2, supporting positive cover 3.Supporting positive cover 3 is installed on the track righting rod 1, between supporting positive cover 3 and the track righting rod 1 certain sliding stroke is arranged in the axial direction, on the track righting rod 1 rail groove is arranged, track pin 2 parts are fixed on the supporting positive cover 3, and a part is inserted in the rail groove of track righting rod 1.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 3 contacts with tube inner wall, under the effect of friction, can slide relatively between supporting positive cover 3, track pin 2 and the track righting rod 1, since groove 6 certain angle that staggered under groove 4 and the track on the track on the track righting rod 1, and skewed slot 5 UNICOMs are arranged between the groove 6 under groove 4, the track on the track, therefore, under the rail effect on track pin 2 and the track righting rod 1, can also relative rotation between supporting positive cover 3, track pin 2 and the track righting rod 1.
Claims (2)
1, a kind of sucker rod rotation centralizer of oil field oil pumping usefulness, form by track righting rod (1), track pin (2), supporting positive cover (3), it is characterized in that: supporting positive cover (3) is installed on the track righting rod (1), the track righting rod has rail groove on (1), track pin (a 2) part is fixed on the supporting positive cover (3), and a part is inserted in the rail groove of track righting rod (1).
2, sucker rod according to claim 1 rotation centralizer is characterized in that: groove (6) certain angle that staggered under groove (4) and the track on the track on the track righting rod (1), and skewed slot (5) UNICOM is arranged between the groove (6) under groove (4), the track on the track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520002916 CN2784574Y (en) | 2005-01-02 | 2005-01-02 | Rotary centralizer for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520002916 CN2784574Y (en) | 2005-01-02 | 2005-01-02 | Rotary centralizer for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784574Y true CN2784574Y (en) | 2006-05-31 |
Family
ID=36771549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520002916 Expired - Fee Related CN2784574Y (en) | 2005-01-02 | 2005-01-02 | Rotary centralizer for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784574Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980629A (en) * | 2020-10-11 | 2020-11-24 | 东营畅想石油装备有限公司 | Spin paraffin scraping centralizing pumping-assisting device |
| CN113622870A (en) * | 2021-09-07 | 2021-11-09 | 正弦科技有限公司 | Multifunctional pumping-aid yield increasing device for oil well |
-
2005
- 2005-01-02 CN CN 200520002916 patent/CN2784574Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980629A (en) * | 2020-10-11 | 2020-11-24 | 东营畅想石油装备有限公司 | Spin paraffin scraping centralizing pumping-assisting device |
| CN113622870A (en) * | 2021-09-07 | 2021-11-09 | 正弦科技有限公司 | Multifunctional pumping-aid yield increasing device for oil well |
| CN113622870B (en) * | 2021-09-07 | 2022-04-12 | 正弦科技有限公司 | Multifunctional pumping-aid yield increasing device for 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 |