CN201695963U - Automatic centralizing anti-wear body of sucker rod - Google Patents
Automatic centralizing anti-wear body of sucker rod Download PDFInfo
- Publication number
- CN201695963U CN201695963U CN2010202531318U CN201020253131U CN201695963U CN 201695963 U CN201695963 U CN 201695963U CN 2010202531318 U CN2010202531318 U CN 2010202531318U CN 201020253131 U CN201020253131 U CN 201020253131U CN 201695963 U CN201695963 U CN 201695963U
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- CN
- China
- Prior art keywords
- sucker rod
- cambered surface
- groove
- great circle
- clamping 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.)
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Abstract
The utility model relates to an automatic centralizing anti-wear body of a sucker rod. The anti-wear body is provided with an inner hole and is provided with a left large arc surface and a right large arc surface; the upper part at one side of the left large arc surface is provided with an upper clamping groove; the lower part at one side of the right large arc surface is provided with a lower clamping groove; the upper clamping groove, the lower clamping groove and the inner hole are communicated with one another; the upper clamping groove and the lower clamping groove are communicated by an intersecting groove; the anti-wear body is provided with the upper clamping groove, the lower clamping groove and the intersecting groove and can be conveniently arranged on the existing sucker rod; the anti-wear body can rotate on the sucker rod, and can realize automatic contact of the large arc surface and the inner wall of an oil pipe without need of other parts during the process of oil pumping, therefore, the reliability of a rod column is high, the radius of the large arc surface is close to that of the inner wall of the matched oil pipe; the contact area of the anti-wear body and the inner wall of the oil pipe is large, the positive pressure is less, the wear can be reduced, the upper clamping groove, the lower clamping groove and the intersecting groove can pass through the fluid; therefore, the flow passing area is large, the oil flow resistance is less, the bending degree is reduced when the sucker rod descends, the wear can be reduced and the production cycle of an oil well can be prolonged.
Description
One, technical field
The utility model is the mechanical device that oil field pumping well is used, particularly a kind of automatic righting anti-abrasion body of oil pumping rod.
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, 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.Chinese patent application: 200820172409.1 " automatic righting anti-abrasion devices ", the great circle cambered surface contacts with tube inner wall automatically during oil pumping, therefore, contact area is big, and normal pressure is little, can alleviate wearing and tearing, but it also has assemblies such as top connection 1, righting rod 4, lower contact 5, complex structure, and these three parts all will deposit and be subjected to the roofbolt pulling force, make the reliability variation of its roofbolt.
Three, summary of the invention
The purpose of this utility model provides a kind of automatic righting anti-abrasion body of oil pumping rod, is installed on the sucker rod, does not need other element, makes it simple in structure, reliable operation.
The purpose of this utility model is achieved in that anti-abrasion body has endoporus, left great circle cambered surface and right great circle cambered surface are arranged on the anti-abrasion body, left side great circle cambered surface, right orthodrome are provided with in the face of claiming, the radius of left side great circle cambered surface, right great circle cambered surface is close with supporting tube inner wall radius, left side great circle cambered surface one upper lateral part is offered draw-in groove, and right great circle cambered surface one side lower part is offered lower bayonet slot, and last draw-in groove, lower bayonet slot communicate with endoporus, last draw-in groove, lower bayonet slot are by intersecting trough UNICOM, and there is chamfering at the anti-abrasion body two ends.
The urniform cavity is arranged in the anti-abrasion body top, the upper port diameter of urniform cavity is less than inside diameter, the shape of urniform cavity is identical with the flange position shape of sucker rod head, the size of urniform cavity is greater than the flange dimension of sucker rod head, last draw-in groove upper end open shape is identical with the flange axial section of sucker rod head, makes draw-in groove on it can pack into the flange position of sucker rod head.
The beneficial effects of the utility model are: be provided with draw-in groove on the anti-abrasion body, lower bayonet slot, intersecting trough, can be loaded on easily on the existing sucker rod, anti-abrasion body can rotate on sucker rod, the great circle cambered surface does not contact with tube inner wall automatically when not needing other parts just can realize oil pumping, but thereby roofbolt property height, and the radius of great circle cambered surface and supporting tube inner wall radius are close, and anti-abrasion body and tube inner wall contact area are big, and normal pressure is little, can alleviate wearing and tearing, last draw-in groove, lower bayonet slot, intersecting trough can pass through fluid, and therefore, area of passage is big, oil flow resistance is little, degree of crook alleviated when sucker rod was descending, can alleviate wearing and tearing, prolonged the oil well production cycle.
Four, description of drawings
Accompanying drawing 1 is the left view of the utility model embodiment.
Accompanying drawing 2 is elevations of the utility model embodiment.
Accompanying drawing 3 is right views of the utility model embodiment.
Accompanying drawing 4 is the sectional views after cutting open from A-A in the accompanying drawing 2.
Accompanying drawing 5 is the sectional views after cutting open from B-B in the accompanying drawing 2.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
The method that anti-abrasion body 1 is installed on the sucker rod is, earlier intersecting trough 2 is stuck on the sucker rod, rotate anti-abrasion body 1 again, make sucker rod enter draw-in groove 4, lower bayonet slot 3 respectively, thereby make sucker rod be in 7 li of endoporus, in order to make sucker rod enter draw-in groove 4, lower bayonet slot 3, intersecting trough 2 can be provided with certain angle.
When not needing between anti-abrasion body 1 and the sucker rod relative displacement, can the flange position of draw-in groove 4 subtend sucker rod heads will be gone up, make draw-in groove 4 on it can pack into the flange position of sucker rod head, because the upper port diameter of urniform cavity 8 is less than inside diameter, the position-limiting action to anti-abrasion body 1 can be played in the flange position of sucker rod head, anti-abrasion body 1 is suspended on the flange position of sucker rod head, anti-abrasion body 1 just can not axial displacement on sucker rod, but can rotate relatively, with the requirement that guarantees that the great circle cambered surface contacts with tube inner wall.
Claims (2)
1. automatic righting anti-abrasion body of oil pumping rod, anti-abrasion body (1) has endoporus (7), left great circle cambered surface (5) and right great circle cambered surface (6) are arranged on the anti-abrasion body (1), left side great circle cambered surface (5), right great circle cambered surface (6) is symmetrical arranged, left side great circle cambered surface (5), the radius of right great circle cambered surface (6) is close with supporting tube inner wall radius, it is characterized in that: left great circle cambered surface (5) one upper lateral parts are offered draw-in groove (4), right great circle cambered surface (6) one side lower parts are offered lower bayonet slot (3), last draw-in groove (4), lower bayonet slot (3) communicates with endoporus (7), last draw-in groove (4), lower bayonet slot (3) is by intersecting trough (2) UNICOM.
2. automatic righting anti-abrasion body of oil pumping rod according to claim 1, it is characterized in that: anti-abrasion body (1) has urniform cavity (8) in the top, the upper port diameter of urniform cavity (8) is less than inside diameter, the shape of urniform cavity (8) is identical with the flange position shape of sucker rod head, the size of urniform cavity (8) is greater than the flange dimension of sucker rod head, last draw-in groove (4) upper end open shape is identical with the flange axial section of sucker rod head, makes draw-in groove on it (4) can pack into the flange position of sucker rod head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202531318U CN201695963U (en) | 2010-06-22 | 2010-06-22 | Automatic centralizing anti-wear body of sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202531318U CN201695963U (en) | 2010-06-22 | 2010-06-22 | Automatic centralizing anti-wear body of sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695963U true CN201695963U (en) | 2011-01-05 |
Family
ID=43397203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202531318U Expired - Fee Related CN201695963U (en) | 2010-06-22 | 2010-06-22 | Automatic centralizing anti-wear body of sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201695963U (en) |
Cited By (1)
| 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 |
-
2010
- 2010-06-22 CN CN2010202531318U patent/CN201695963U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Guofeng Inventor after: Liu Qing Inventor after: Zheng Yali Inventor after: Deng Yuhua Inventor after: Gu Xiaodong Inventor after: Yin Fengli Inventor before: Yang Guofeng Inventor before: Zheng Yali Inventor before: Gu Xiaodong Inventor before: Yin Fengli Inventor before: Deng Yuhua Inventor before: Liu Qing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YANG GUOFENG ZHENG YALI GU XIAODONG YIN FENGLI DENG YUHUA LIU QING TO: YANG GUOFENG LIU QING ZHENG YALI DENG YUHUA GU XIAODONG YIN FENGLI |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20120622 |