CN204920829U - Sucker rod centralizer abrasionproof is vice - Google Patents
Sucker rod centralizer abrasionproof is vice Download PDFInfo
- Publication number
- CN204920829U CN204920829U CN201520634947.8U CN201520634947U CN204920829U CN 204920829 U CN204920829 U CN 204920829U CN 201520634947 U CN201520634947 U CN 201520634947U CN 204920829 U CN204920829 U CN 204920829U
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- China
- Prior art keywords
- rod
- lock nut
- chromium plating
- sucker rod
- pole
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Abstract
The utility model relates to a sucker rod centralizer abrasionproof is vice. Its technical scheme is: including last body of rod lock nut, set upright or straight the body, nylon and set upright or straight piece, chromium plating wear -resistant pole, down body of rod lock nut, sucker rod collar, chromium plating is wear -resistant the bottom of pole and is connected sucker rod collar through lower body of rod lock nut, and chromium plating is wear -resistant the top of pole and is equipped with body of rod lock nut, chromium plating wear -resistant the middle part of pole and be equipped with and right the body, right the body the surface cover have nylon to right the piece, the nylon surface of setting upright or straight the piece be equipped with many the trapezoidal chutes of crossing. The beneficial effects are that: reduce the sucker rod in crooked, the slope of oil pipe internal cause and the sucker rod, the oil pipe that appear grind partially by a wide margin, realize reducing the consumption of pipe pole simultaneously, prolonged the well workover phase, reduced the effect of operating cost, had fine economic benefits.
Description
Technical field
The utility model relates to a kind of oil extraction in oil field instrument, and particularly a kind of oil pumping rod centering device abrasionproof is secondary.
Background technology
In sucker-rod pumping system, no matter be straight well or inclined shaft, R a T is all relative motion in contact, therefore, there are inevitable wearing and tearing between sucker rod and oil pipe, particularly deep-well and inclined shaft, sucker rod is easy to bend in oil pipe, occurs the problem of serious sucker rod partial wear oil pipe, after producing eccentric wear, oil pipe and sucker rod can not be used, cause oil well operation, oil well repair free period is short, increases operating cost, increases rod tube consumption, the oil well off-time is many, decreases crude output.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of oil pumping rod centering device abrasionproof secondary, significantly can reduce sucker rod and bend in oil pipe internal cause, tilts and the sucker rod, the oil pipe eccentric wear that occur.
Its technical scheme is: comprise body of rod lock nut, centralizer body, nylon wiper block, chromium plating wear bar, lower body of rod lock nut, rod collar, the bottom of described chromium plating wear bar is by lower body of rod lock nut connecting with pumping rod box cupling, the top of chromium plating wear bar is provided with body of rod lock nut, centralizer body is equipped with at the middle part of described chromium plating wear bar, the appearance surface cover of described centralizer body has nylon wiper block, and the external surface of described nylon wiper block is provided with many trapezoidal chutes excessively.
Be provided with ball inside above-mentioned centralizer body, sliding friction is converted to rolling friction.
Above-mentioned chromium plating wear bar adopts and adds thick bar, and the fastener for sucker rod at two ends adopts arc escape, and by body of rod lock nut more protection.
The beneficial effects of the utility model are: significantly reduce sucker rod and bend in oil pipe internal cause, tilt and the sucker rod, the oil pipe eccentric wear that occur; Achieve simultaneously and reduce the consumption of pipe bar, extend the well workover phase, reduce the effect of operating cost, there is good economic benefit.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: go up body of rod lock nut 1, centralizer body 2, nylon wiper block 3, chromium plating wear bar 4, lower body of rod lock nut 5, rod collar 6, trapezoidal chute 7 excessively.
Detailed description of the invention
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises body of rod lock nut 1, centralizer body 2, nylon wiper block 3, chromium plating wear bar 4, lower body of rod lock nut 5, rod collar 6, the bottom of described chromium plating wear bar 4 is by lower body of rod lock nut 5 connecting with pumping rod box cupling 6, the top of chromium plating wear bar 4 is provided with body of rod lock nut 1, centralizer body 2 is equipped with at the middle part of described chromium plating wear bar 4, the appearance surface cover of described centralizer body 2 has nylon wiper block 3, the external surface of described nylon wiper block 3 is provided with many trapezoidal chutes 7 excessively, trapezium structure can improve conveyance capacity, but also structure wide outside and narrow inside makes fluid have self-cleaning function, wherein, be provided with ball inside centralizer body 2, sliding friction is converted to rolling friction, above-mentioned chromium plating wear bar 4 adopts and adds thick bar, and the fastener for sucker rod at two ends adopts arc escape, and by body of rod lock nut more protection.
During work, centralizer body can slide on chromium plating wear bar, owing to being equipped with ball in centralizer body endoporus, sliding friction is converted to rolling friction, friction factor is little, centralizer body slides up and down simultaneously and around body rotary motion, therefore can not cause fixed point eccentric wear on chrome plated bar, thus increases substantially the application life of this sucker rod anti-abrasion pair.
Chromium plating wear bar employing φ 30 adds thick bar; and two ends fastener for sucker rod adopts arc escape; utilize body of rod lock nut to carry out more protection simultaneously; solve the problem that body of rod screw thread place is easily broken thus, thus ensure that the whole structures such as the long service life of this sucker rod anti-abrasion pair, reliability be high, easy for installation.
The above is only preferred embodiment of the present utility model, and any those of ordinary skill in the art all may utilize the technical scheme of above-mentioned elaboration to the utility model correct or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to the technical solution of the utility model or substitute equivalents, belong to the greatest extent the scope that the utility model is claimed.
Claims (3)
1. an oil pumping rod centering device abrasionproof is secondary, it is characterized in that: comprise body of rod lock nut (1), centralizer body (2), nylon wiper block (3), chromium plating wear bar (4), lower body of rod lock nut (5), rod collar (6), the bottom of described chromium plating wear bar (4) is by lower body of rod lock nut (5) connecting with pumping rod box cupling (6), the top of chromium plating wear bar (4) is provided with body of rod lock nut (1), centralizer body (2) is equipped with at the middle part of described chromium plating wear bar (4), the appearance surface cover of described centralizer body (2) has nylon wiper block (3), the external surface of described nylon wiper block (3) is provided with many trapezoidal chutes (7) excessively.
2. oil pumping rod centering device abrasionproof according to claim 1 is secondary, it is characterized in that: described centralizer body (2) inner side is provided with ball, and sliding friction is converted to rolling friction.
3. oil pumping rod centering device abrasionproof according to claim 1 is secondary, it is characterized in that: described chromium plating wear bar (4) adopts and adds thick bar, and the fastener for sucker rod at two ends adopts arc escape, and by body of rod lock nut more protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634947.8U CN204920829U (en) | 2015-08-21 | 2015-08-21 | Sucker rod centralizer abrasionproof is vice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634947.8U CN204920829U (en) | 2015-08-21 | 2015-08-21 | Sucker rod centralizer abrasionproof is vice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920829U true CN204920829U (en) | 2015-12-30 |
Family
ID=54969966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520634947.8U Active CN204920829U (en) | 2015-08-21 | 2015-08-21 | Sucker rod centralizer abrasionproof is vice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204920829U (en) |
-
2015
- 2015-08-21 CN CN201520634947.8U patent/CN204920829U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |