CN2540497Y - Rotary paraffin cutting centralizer - Google Patents
Rotary paraffin cutting centralizer Download PDFInfo
- Publication number
- CN2540497Y CN2540497Y CN 02253777 CN02253777U CN2540497Y CN 2540497 Y CN2540497 Y CN 2540497Y CN 02253777 CN02253777 CN 02253777 CN 02253777 U CN02253777 U CN 02253777U CN 2540497 Y CN2540497 Y CN 2540497Y
- Authority
- CN
- China
- Prior art keywords
- rod
- oil
- utility
- model
- oil pump
- 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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- Earth Drilling (AREA)
Abstract
The utility model relates to an oil pump rod rotary paraffin scrape corrector used in oil production technical field, for resolving the problems of prior corrector as bad correction effect and easy abrasion on inner wall of oil tube. The utility model is characterized in that one end of a shoulder at outer side of a connecting ring (5) on the oil pump rod is sheathed with a baffle ring (4), while the outer screw of another end is fixed with a limiting nut (1), the connecting ring (5) between the baffle ring (4) and the limiting nut (1) is sheathed with a liner (2), the liner (2) is sheathed with a correcting sheath (3) provided with a plurality of screw protrusions on outer wall. The utility model has simple structure, easy application and high reliability, which can correct rotary oil pump rod effectively, avoid abrasion on oil tube of oil pump rod, and improve the stability of rod, to support the rotary devices as screw rod pump.
Description
Technical field:
The utility model relates to the used equipment in oil recovery field, oil field, belongs to sucker rod rotation paraffin cutting centralizer.
Background technology:
At present, the structure of the most oil pumping rod centering device in oil recovery field, oil field is a hollow cylinder, open on the centralizer body axial gap snap into the oil pumping body of rod on, this can play centralizing function to the rod string that moves up and down, but on the rod string that rotates, use, not only increase rotary resistance, also cause tube inner wall heavy wear, centralizer damages easily.
Summary of the invention:
The purpose of this utility model is to overcome the deficiency in the above-mentioned background technology, and a kind of good setting upright performance and reduce the sucker rod rotation paraffin cutting centralizer that oil pipe weares and teares that have is provided.
The invention for solving the technical problem can reach by following technical solution: sucker rod rotation paraffin cutting centralizer, and it constitutes on rod collar, and shoulder one end that is provided with in the rod collar outside is with baffle ring, other end outside screw fixed limit nut; Between baffle ring and stop nut, on rod collar, be with lining, on lining, be with the supporting positive cover that outer wall is provided with several spiral ridges.
Spiral ridge on the above-mentioned supporting positive cover is 4.
The utility model is compared with background technology has following beneficial effect: because this centralizer is with the lining and the supporting positive cover of slip successively outside box cupling, make the sucker rod that rotates is had good setting upright performance and prevent the wearing and tearing of sucker rod to tubing wall, reduced the swing of sucker rod roofbolt, improved the stability of roofbolt running, prolong the application life of underground equipment, the device that rotates for need such as screw pumps provides sound assurance.Simple in structure, easy to use, reliable.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, this centralizer is provided with a shoulder in rod collar 5 outsides, and is with baffle ring 4 at this end, and box cupling 5 other end outside screw are connected and fixed stop nut 1; Between baffle ring 4 and stop nut 1, on rod collar 5, be with the lining 2 of slip, on lining 2, be with the supporting positive cover 3 that outer wall is provided with 4 spiral ridges.
In such scheme, because the formed groove of spiral ridge that faces mutually on the supporting positive cover 3 provides passage for the oil pipe inner fluid, oil is smooth logical, so supporting positive cover 3 external diameters can amplify as far as possible, sets upright the stability that performance and sucker rod rotate thereby improve; Rotate lining 2 flexibly across one in the middle of supporting positive cover 3 and the sucker rod that rotates, when sucker rod rotates and supporting positive cover 3 can be motionless against tube wall,, make this centralizer not fragile so tube inner wall is had no to wear and tear.
Claims (2)
1, a kind of used sucker rod rotation paraffin cutting centralizer in oil recovery field, oil field that relates to, it is gone up at rod collar (5) and constitutes, it is characterized in that: shoulder one end that is provided with in rod collar (5) outside is with baffle ring (4), other end outside screw fixed limit nut (1); Between baffle ring (4) and stop nut (1), on rod collar (5), be with lining (2), on lining (2), be with the supporting positive cover (3) that outer wall is provided with several spiral ridges.
2, sucker rod rotation paraffin cutting centralizer according to claim 1, it is characterized in that: the spiral ridge on the supporting positive cover (3) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253777 CN2540497Y (en) | 2002-08-19 | 2002-09-12 | Rotary paraffin cutting centralizer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN022460012 | 2002-08-19 | ||
| CN02246001 | 2002-08-19 | ||
| CN 02253777 CN2540497Y (en) | 2002-08-19 | 2002-09-12 | Rotary paraffin cutting centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2540497Y true CN2540497Y (en) | 2003-03-19 |
Family
ID=34065089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02253777 Expired - Fee Related CN2540497Y (en) | 2002-08-19 | 2002-09-12 | Rotary paraffin cutting centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2540497Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094584A (en) * | 2009-12-14 | 2011-06-15 | 牛子久 | Double-acting type drill stem stabilizing device |
-
2002
- 2002-09-12 CN CN 02253777 patent/CN2540497Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094584A (en) * | 2009-12-14 | 2011-06-15 | 牛子久 | Double-acting type drill stem stabilizing device |
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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 |