CN2278078Y - Rotary corrector for sucker rod - Google Patents
Rotary corrector for sucker rod Download PDFInfo
- Publication number
- CN2278078Y CN2278078Y CN 96205127 CN96205127U CN2278078Y CN 2278078 Y CN2278078 Y CN 2278078Y CN 96205127 CN96205127 CN 96205127 CN 96205127 U CN96205127 U CN 96205127U CN 2278078 Y CN2278078 Y CN 2278078Y
- Authority
- CN
- China
- Prior art keywords
- lining
- sucker rod
- oil pumping
- pumping rod
- ring washer
- 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 a rotary corrector for an oil pumping rod. The rotary corrector for an oil pumping rod is mainly composed of a body, a retainer ring, a lining, a non-metallic correcting sleeve, and a position limiting nut. The rotary corrector for an oil pumping rod is provided with the body like a joint of an oil pumping rod. Two ends of the body are respectively provided with a male thread of the oil pumping rod and a female thread of the oil pumping rod, and the outer side of the middle part of the body is provided with a table shoulder. The retainer ring is arranged on the table shoulder. A circular lining is arranged on the retainer ring, and the non-metallic correcting sleeve is arranged outside the circular lining. The position limiting nut is arranged on the retainer ring to be connected with the body by a thread. The rotary corrector for an oil pumping rod not only has favorable correcting performance, but also can not abrade an oil pipe. The utility model is the rotary corrector for an oil pumping rod which is provided with a large oil flow channel.
Description
The utility model relates to a kind of oil pumping rod centering device that is used for pumpingh well, particularly sucker rod rotation centralizer.
At present, its structure of most oil pumping rod centering device is a hollow cylinder, opening an axial gap snaps on the oil pumping body of rod, 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 also damages easily, and for this reason, once the someone designed a rotating metal supporting positive cover is installed on sucker rod substitute, for not influencing oil flow channel, the design of supporting positive cover external diameter is less, not only weakened and set upright effect, and supporting positive cover clashes into tube inner wall, wearing and tearing still keep away unavoidable.
The purpose of this utility model is to provide a kind of existing good performance of setting upright, the oil pipe that do not wear and tear again, and the sucker rod rotation centralizer of big oil flow channel is arranged.
The purpose of this utility model is achieved in that sucker rod rotates centralizer and mainly is made up of body, ring washer, lining, nonmetal supporting positive cover and stop nut, body as rod connector is arranged, its two ends have sucker rod male and female screw thread respectively, there is a screw thread at the place, big footpath of male and female screw thread silk tail, the outside, body middle part is provided with shoulder, and shoulder is provided with ring washer, and ring washer is provided with circular lining, lining is provided with supporting positive cover outward, and 2～8 spiral ridges are arranged on the supporting positive cover cylindrical; Ring washer is provided with stop nut and is threaded with body, and 2～8 axial notches are respectively arranged on the inside and outside wall of lining.
The utility model is simple in structure, easy to use, reliable, especially as one section sucker rod substitute, oil flow channel is big, sucker rod to rotation has good setting upright performance and prevent the wearing and tearing of sucker rod to tubing wall, has reduced the swing of sucker rod roofbolt, has improved the stability of roofbolt running, prolong the application life of underground equipment, the device that rotates for need such as screw pumps provides strong assurance.Especially be fit to use on the inclined shaft.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the utility model structural representation.
The utility model centralizer is mainly by body, ring washer, lining, nonmetal supporting positive cover and stop nut are formed, body 5 as rod connector is arranged, sucker rod male and female screw thread is arranged respectively at its two ends, be provided with shoulder in the outside, body 5 middle parts, external diameter is inserted in from the male thread end greater than the ring washer 4 of shoulder external diameter, seat is on shoulder, external diameter also is inserted in 5 of bodies on ring washer 4 less than the circular lining 2 of ring washer 4 external diameters, make by nonmetal for one, there is the supporting positive cover 3 of 2 to 8 spiral ridges to be placed in lining 2 outsides on the cylindrical, also seat is on ring washer 4, supporting positive cover 3 length are identical with lining 2, external diameter greater than ring washer 4 external diameters less than 2 to 5 millimeters of descending pipe apertures, stop nut 1 is contained on the cylindrical thread of body 5, avoid lining 2 and supporting positive cover 3 to deviate from, on lining 2 inside and outside walls, the axial notch that staggers is mutually arranged respectively, play sand launder or oil groove effect, so that lining 2 rotates freely.If this centralizer needs to link to each other with hollow-rod string, then centralizer body 5 is made hollowly, at its male thread neck place processing 1 to 2 road sealing groove, and loads onto sealing ring, the box end also have one with the corresponding reaming seal section of hollow rod male joint, with the joint sealing that guarantees to be connected.Because the formed groove of spiral ridge on the supporting positive cover 3 also is the oil pipe fluid passage, therefore, supporting positive cover 3 external diameters are done more as far as possible, thereby have improved the stability of setting upright performance and rod string rotation greatly.In addition, 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, so tube inner wall is had no to wear and tear.Supporting positive cover 3 can be the nylon die casting moulding, 4 spiral ridges, and 45 ° of its helical angles, the fin external diameter is less than used oil bore 3mm, and lining can be processed with bronze.
Claims (4)
1. a sucker rod rotates centralizer, form by body, ring washer, lining, supporting positive cover and stop nut, it is characterized in that body (5) two ends have sucker rod male and female screw thread respectively, the outside, body (5) middle part is provided with shoulder, shoulder is provided with ring washer (4), ring washer is provided with circular lining (2), and lining (2) is outer to be provided with supporting positive cover (3), and ring washer (4) is provided with stop nut (1) and is threaded with body (5).
2. according to the described sucker rod rotation of claim 1 centralizer, it is characterized in that supporting positive cover is nonmetal making, cylindrical is provided with 2～8 spiral ridges.
3. according to the described sucker rod rotation of claim 1 centralizer, it is characterized in that on lining (2) inside and outside wall 2～8 axial notches being arranged respectively.
4. according to claim 1 or 3 described sucker rods rotation centralizers, it is characterized in that body (5), have 1 to 2 road sealed packing and box thread end to have at sucker rod male thread end neck and be connected corresponding reaming seal section with rod connector for hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96205127 CN2278078Y (en) | 1996-03-12 | 1996-03-12 | Rotary corrector for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96205127 CN2278078Y (en) | 1996-03-12 | 1996-03-12 | Rotary corrector for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2278078Y true CN2278078Y (en) | 1998-04-08 |
Family
ID=33890190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96205127 Expired - Fee Related CN2278078Y (en) | 1996-03-12 | 1996-03-12 | Rotary corrector for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2278078Y (en) |
-
1996
- 1996-03-12 CN CN 96205127 patent/CN2278078Y/en not_active Expired - Fee Related
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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 |