CN201024918Y - A pole connection centralizer for trapeziform side inserted release preventive screw pump well - Google Patents
A pole connection centralizer for trapeziform side inserted release preventive screw pump well Download PDFInfo
- Publication number
- CN201024918Y CN201024918Y CNU2006200885434U CN200620088543U CN201024918Y CN 201024918 Y CN201024918 Y CN 201024918Y CN U2006200885434 U CNU2006200885434 U CN U2006200885434U CN 200620088543 U CN200620088543 U CN 200620088543U CN 201024918 Y CN201024918 Y CN 201024918Y
- Authority
- CN
- China
- Prior art keywords
- plug
- avulsion
- pole
- centralizer
- trapezoidal side
- 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 - Lifetime
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Abstract
The utility model relates to a special pole connecting centralizer for the trapezoid side inserting type breaking proof screw pump well and belongs to the petroleum mechanical oil drilling device domain. The utility model comprises a convex trapezoid side inserting breaking proof connector, a short pole, a connecting hoop, a spare nut, a locking nut, a spring mat, a breaking proof nut and a helix centralizer. The convex trapezoid side inserting breaking proof connector is united with the short pole; the two ends of the short pole are provided with a breaking proof nut, a spring mat, a connecting mat, a connecting hoop, a locking nut and a spare nut in order; the helix centralizer is arranged on the short pole between the two breaking proof nuts; and the convex trapezoid side inserting breaking proof connector is provided with a convex trapezoid connector. When the utility model works in the well, the utility model can prevent the breaking off of the oil pump pole as the convex trapezoid connector and special concave trapezoid of the screw pump well are connected and provided with a connecting hoop in double safe method through the oil pump pole. The centralizer can rotate in the rotating process of the oil pump pole and the helix centralizing belt has an even friction with the inner wall of the oil tube, therefore the utility model can prevent the eccentric grinding of the oil pump pole.
Description
Affiliated technical field
A kind of trapezoidal side-plug-in anti-avulsion screw bolt well special pole connects erection device and belongs to petroleum machinery oil production equipment field.
Background technology
Drive screw pump rod string rotates in oil pipe in the oil producing operation process, roofbolt dropout reason is as follows: easily cause box cupling and oil pipe to rub owing to hole deviation, roofbolt bending and centralizer are provided with reason such as unreasonable, produce the shackle moment of torsion, cause dropout, so that influence the normal oil producing operation of screw pump.
Summary of the invention
The purpose of this utility model provide a kind of can prevent between the sucker rod to thread off, can effectively set upright again-kind of a trapezoidal side-plug-in anti-avulsion screw bolt well special pole connects erection device.
The technical solution of the utility model is: a kind of trapezoidal side-plug-in anti-avulsion screw bolt well special pole connects erection device by protruding trapezoidal side-plug-in anti-avulsion joint (1), the quarter butt body of rod (2), box cupling (3), be equipped with female (4), locking nut (5), spring washer (6), screwed retaining ring (7), spiral centralizer (8) is formed, protruding trapezoidal side-plug-in anti-avulsion joint (1) is an integral structure with the quarter butt body of rod (2), (screwed retaining ring (7) is equipped with at 20 two ends to the quarter butt body of rod successively, spring washer (6), box cupling (3), locking nut (5), be equipped with female (4), spiral centralizer (8) is contained on the quarter butt body of rod (2) between two screwed retaining rings (7), during following well operations, by connecting into rod string with trapezoidal side-plug-in anti-avulsion screw bolt well special pole, erection device is loaded onto spiral centralizer (8), screwed retaining ring (7), spring washer (6), box cupling (3), locking nut (5), be equipped with female (4), protruding then trapezoidal side-plug-in anti-avulsion joint (1) closes with the trapezoidal side-plug-in anti-avulsion screw bolt well recessed trapezoidal side-plug-in anti-avulsion joint of special pole (9) side inserting, box cupling in the utility model (3) is connected with the screw thread (10) of trapezoidal side-plug-in anti-avulsion screw bolt well special pole, tightens screwed retaining ring (7) at last.
The beneficial effects of the utility model are: the rod string that 1, connects is owing to adopt the utility model; Recessed dovetail groove side in the protruding trapezoidal joint of protruding trapezoidal side-plug-in anti-avulsion joint (1) and the trapezoidal side-plug-in anti-avulsion screw bolt well recessed trapezoidal side-plug-in anti-avulsion joint of special pole (9) is inserted and is formed by connecting, the outside has box cupling (3) to be connected with trapezoidal side-plug-in anti-avulsion screw bolt well special pole connecting thread (10) again, with the form of dual fail-safe, prevented the dropout problem of screw bolt well rod string; 2, spiral centralizer (8) can rotate between two screwed retaining rings (7) flexibly, there is spiral to set upright band and helical flow path on it, the spiral centralizer is because of the existence of helical flow path, in sucker rod rotation work process, because the percussion of oil stream produces the power that rotates in a circumferential direction, make the rotation of spiral centralizer, the spiral of spiral centralizer is set upright band and is evenly rubbed with tube inner wall, has prevented sucker rod generation eccentric wear.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of trapezoidal side-plug-in anti-avulsion screw bolt well special pole.
Among the figure: 1, protruding trapezoidal side-plug-in anti-avulsion joint, 2, the quarter butt body of rod, 3, box cupling, 4, be equipped with female, 5, locking nut, 6, spring washer, 7, screwed retaining ring, 8, the spiral centralizer, 9, recessed trapezoidal side-plug-in anti-avulsion joint, 10, connecting thread.
The specific embodiment
The purpose of this utility model can reach in the following manner:
The utility model is by protruding trapezoidal side-plug-in anti-avulsion joint (1), the quarter butt body of rod (2), box cupling (3), be equipped with female (4), locking nut (5), spring washer (6), screwed retaining ring (7), spiral centralizer (8) is formed, it is integral structure with the quarter butt body of rod (2) that formula anti-avulsion joint (1) is inserted in protruding trapezoidal survey, screwed retaining ring (7) is equipped with at the quarter butt body of rod (2) two ends successively, spring washer (6), box cupling (3), locking nut (5), be equipped with female (4), spiral centralizer (8) is contained on the quarter butt body of rod (2) between two screwed retaining rings (7), the operation area of going into the well, by with Fig. 2 in trapezoidal side-plug-in anti-avulsion screw bolt well special pole connect into rod string.
Protruding trapezoidal side-plug-in anti-avulsion joint (1) has protruding trapezoidal joint; Adding two on the quarter butt body of rod (2) has screw thread, and the quarter butt body of rod (2) and the connected mode that is equipped with female (4), locking nut (5), screwed retaining ring (7) are for being threaded; Box cupling (3) adopts with trapezoidal side-plug-in anti-avulsion screw bolt well special pole and is threaded, and having spanner side on it is two sides or cubic; Have spiral above the spiral centralizer (8) and set upright band and helical flow path.
Claims (4)
1. a trapezoidal side-plug-in anti-avulsion screw bolt well special pole connects erection device, by protruding trapezoidal side-plug-in anti-avulsion joint (1), the quarter butt body of rod (2), box cupling (3), be equipped with female (4), locking nut (5), spring washer (6), screwed retaining ring (7), spiral centralizer (8) is formed, protruding trapezoidal side-plug-in anti-avulsion joint (1) is an integral structure with the quarter butt body of rod (2), screwed retaining ring (7) is equipped with at the quarter butt body of rod (2) two ends successively, spring washer (6), box cupling (3), locking nut (5), be equipped with female (4), spiral centralizer (8) is equipped with on the quarter butt body of rod (2) between two screwed retaining rings (7), and it is characterized in that: protruding trapezoidal side-plug-in anti-avulsion joint (1) has protruding trapezoidal joint.
2. a kind of trapezoidal side-plug-in anti-avulsion screw bolt well special pole according to claim 1 connects erection device, its feature also is: the quarter butt body of rod is processed with screw thread on (2), and the quarter butt body of rod (2) and the connected mode that is equipped with female (4), locking nut (5), screwed retaining ring (7) are for being threaded.
3. a kind of trapezoidal side-plug-in anti-avulsion screw bolt well special pole according to claim 1 connects erection device, and its feature also is: box cupling (3) is connected with trapezoidal side-plug-in anti-avulsion screw bolt well special pole sets upright attaching, and having spanner side on it is two sides or cubic.
4. a kind of trapezoidal side-plug-in anti-avulsion screw bolt well special pole according to claim 1 connects erection device, and its feature also is: have spiral above the spiral centralizer (8) and set upright band and helical flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200885434U CN201024918Y (en) | 2006-09-01 | 2006-09-01 | A pole connection centralizer for trapeziform side inserted release preventive screw pump well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200885434U CN201024918Y (en) | 2006-09-01 | 2006-09-01 | A pole connection centralizer for trapeziform side inserted release preventive screw pump well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201024918Y true CN201024918Y (en) | 2008-02-20 |
Family
ID=39098775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200885434U Expired - Lifetime CN201024918Y (en) | 2006-09-01 | 2006-09-01 | A pole connection centralizer for trapeziform side inserted release preventive screw pump well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201024918Y (en) |
-
2006
- 2006-09-01 CN CNU2006200885434U patent/CN201024918Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080220 |
|
| EXPY | Termination of patent right or utility model |