CN205135458U - Sucker rod centering device - Google Patents
Sucker rod centering device Download PDFInfo
- Publication number
- CN205135458U CN205135458U CN201520942596.7U CN201520942596U CN205135458U CN 205135458 U CN205135458 U CN 205135458U CN 201520942596 U CN201520942596 U CN 201520942596U CN 205135458 U CN205135458 U CN 205135458U
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- China
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- connecting portion
- groove
- draw
- centering device
- rod centering
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Abstract
The utility model relates to an oil production equipment, purpose are the sucker rod centering device who provides a simple structure, reduce cost, safe and reliable, including two bodies that the structure is the same, the body includes connecting portion, sets up the cross section on the connecting portion and leads to the groove for semicircular, and the one end of connecting portion sets up the draw -in groove, other end setting and card slot well -matched's tenon, and the tenon and the draw -in groove of one of them body are installed with draw -in groove, the tenon grafting of another body respectively. The utility model discloses sucker rod centering device adopts and pieces together the formula of inserting structural design, simple structure, and low in manufacturing cost, easy dismounting, the problem is set upright or straight to the sucker rod that can effectively solve under the complicated hole condition circumstances, and safe and reliable, and is not fragile, long service life.
Description
Technical field
The utility model relates to a kind of oil production equipment, particularly relates to a kind of oil pumping rod centering device.
Background technology
Rod-pumped well is all the main oil production method in domestic and international oil field all the time, transmit power by sucker rod to oil well pump and extract crude oil, because oil well is comparatively dark and the reason such as inclined shaft causes sucker rod to contact with tube inner wall and to rub, sucker rod partial wear and disconnected de-generation can be caused after a period of time, thus cause oil well normally not run.In order to solve above sucker rod partial wear problem, oil field extensively adopts the way of centralizer, namely by installing centralizer additional to avoid or reduce the eccentric wear of sucker rod between two adjacent sucker rods or on sucker rod.Because the external diameter of centralizer is all larger than sucker rod and rod collar, therefore its can preferentially contact with tube inner wall and avoid the contact of sucker rod and tube inner wall, thus protects sucker rod formation.
But current centralizer structure is much more complicated, as CN200510044526 patent the two-rolling bearing type pumping rod centralizer that proposes, replaced the sliding friction mode of general centralizer and oil pipe by the rolling friction mode of rolling bearing, reduce frictional resistance, but the complex structure of centralizer own, component are numerous, under poor working conditions in oil well, be easy to damage, cause component to come off, fall in well, cause the accidents such as holddown.
In addition, as CN201310377810 patent the self-righting formula abrasionproof hollow rod that proposes, theoretically, do not include centralizer, but a kind of pup joint of sucker rod, it is not be directly installed on sucker rod, but as a sucker rod, is concatenated in sucker rod tubing string, like this, its installation, dismantle cumbersome, the fracture if body goes wrong, will cause sucker rod tubing string rupture and have an accident.
For another example the wear-resisting centering guide structure that proposes of CN201410216275 patent, its project organization is inherently very complicated, also causes cost to increase simultaneously, is unfavorable for popularization.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of structure simple, reduce costs, safe and reliable oil pumping rod centering device.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of oil pumping rod centering device, comprise the body that two structures are identical, body comprises connecting portion, connecting portion being offered cross section is semicircular groove, one end of connecting portion arranges draw-in groove, the other end arranges the tenon matched with draw-in groove, and the tenon of one of them body and draw-in groove are installed with the draw-in groove of another body, tenon grafting respectively.
The utility model oil pumping rod centering device, further, described connecting portion one end arranges projection at draw-in groove inner side, and the connecting portion other end arranges the locking slot matched with projection, and the projection on two bodies snaps in corresponding locking slot respectively.
The utility model oil pumping rod centering device, further, the outside medium position of described connecting portion arranges longitudinal reinforced rib.
The utility model oil pumping rod centering device, further, the two ends of described longitudinal reinforced rib are set to inclined-plane, are 10-20 ° with the angle b of vertical direction.
The utility model oil pumping rod centering device, further, arc transition between described longitudinal reinforced rib and connecting portion.
The utility model oil pumping rod centering device, further, the two side, one end that described connecting portion arranges draw-in groove is set to inclined-plane, and the angle a of inclined-plane and vertical direction is 20-30 °.
The utility model oil pumping rod centering device adopts pieced structure design, and structure is simple, and low cost of manufacture, easy accessibility, effectively can solve the sucker rod stabilizing problem in complex hole condition situation, and safe and reliable, not fragile, long service life.
Below in conjunction with accompanying drawing, oil pumping rod centering device of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the front view of one of them body of the utility model oil pumping rod centering device;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is A-A sectional view in Fig. 1;
Fig. 4 is the left view of Fig. 1;
Fig. 5 is the overall structure figure of the utility model oil pumping rod centering device.
Detailed description of the invention
As Figure 1-Figure 5, the utility model oil pumping rod centering device comprises the identical body 1 of two structures, and body 1 comprises connecting portion 2, and connecting portion 2 being offered cross section is semicircular groove 3, one end of connecting portion 2 arranges draw-in groove 4, and the other end arranges the tenon 5 matched with draw-in groove 4.Connecting portion 2 one end arranges protruding 6 at draw-in groove 4 inner side, and the connecting portion other end is arranged and protruding 6 locking slots 7 matched.The two side, one end that connecting portion 2 arranges draw-in groove 4 is set to inclined-plane, and the angle a of inclined-plane and vertical direction is 20-30 °.The outside medium position of connecting portion 2 arranges longitudinal reinforced rib 8, arc transition between longitudinal reinforced rib 8 and connecting portion 2, and the two ends of longitudinal reinforced rib 8 are set to inclined-plane, is 10-20 ° with the angle b of vertical direction.
The tenon of one of them body 1 and draw-in groove are installed with the draw-in groove of another body 9, tenon grafting respectively, and projection snaps in corresponding locking slot internal locking simultaneously.Semicircle groove on two bodies forms circular groove, for being arranged on sucker rod.
The utility model oil pumping rod centering device adopts injection machine injection moulding punching press to make.
The utility model oil pumping rod centering device adopts pieced structure design, and structure is simple, low cost of manufacture, and easy accessibility, effectively can solve the sucker rod stabilizing problem in complex hole condition situation, and safe and reliable, not fragile, long service life; Connecting portion arranged outside longitudinal reinforced rib, so design ensures that flow channels is vertical, and the two side, one end that connecting portion arranges draw-in groove is set to inclined-plane, adopts this profile design can crude oil flow resistance in the reduction oil well of maximal efficiency.
Above-described embodiment is only be described preferred embodiment of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (6)
1. an oil pumping rod centering device, it is characterized in that: comprise the body that two structures are identical, body comprises connecting portion, connecting portion being offered cross section is semicircular groove, one end of connecting portion arranges draw-in groove, the other end arranges the tenon matched with draw-in groove, and the tenon of one of them body and draw-in groove are installed with the draw-in groove of another body, tenon grafting respectively.
2. oil pumping rod centering device according to claim 1, is characterized in that: described connecting portion one end arranges projection at draw-in groove inner side, and the connecting portion other end arranges the locking slot matched with projection, and the projection on two bodies snaps in corresponding locking slot respectively.
3. oil pumping rod centering device according to claim 1 and 2, is characterized in that: the outside medium position of described connecting portion arranges longitudinal reinforced rib.
4. oil pumping rod centering device according to claim 3, is characterized in that: the two ends of described longitudinal reinforced rib are set to inclined-plane, is 10-20 ° with the angle b of vertical direction.
5. oil pumping rod centering device according to claim 4, is characterized in that: arc transition between described longitudinal reinforced rib and connecting portion.
6. oil pumping rod centering device according to claim 1 and 2, is characterized in that: the two side, one end that described connecting portion arranges draw-in groove is set to inclined-plane, and the angle a of inclined-plane and vertical direction is 20-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942596.7U CN205135458U (en) | 2015-11-23 | 2015-11-23 | Sucker rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942596.7U CN205135458U (en) | 2015-11-23 | 2015-11-23 | Sucker rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135458U true CN205135458U (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520942596.7U Active CN205135458U (en) | 2015-11-23 | 2015-11-23 | Sucker rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005689A (en) * | 2019-12-20 | 2020-04-14 | 中煤科工集团西安研究院有限公司 | Centralizer suitable for colliery is drilling usefulness in pit |
-
2015
- 2015-11-23 CN CN201520942596.7U patent/CN205135458U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005689A (en) * | 2019-12-20 | 2020-04-14 | 中煤科工集团西安研究院有限公司 | Centralizer suitable for colliery is drilling usefulness in pit |
| CN111005689B (en) * | 2019-12-20 | 2021-08-10 | 中煤科工集团西安研究院有限公司 | Centralizer suitable for colliery is drilling usefulness in pit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |