CN201254956Y - Anti-biasing-wear hollow sucker rod - Google Patents
Anti-biasing-wear hollow sucker rod Download PDFInfo
- Publication number
- CN201254956Y CN201254956Y CNU2008201717539U CN200820171753U CN201254956Y CN 201254956 Y CN201254956 Y CN 201254956Y CN U2008201717539 U CNU2008201717539 U CN U2008201717539U CN 200820171753 U CN200820171753 U CN 200820171753U CN 201254956 Y CN201254956 Y CN 201254956Y
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- CN
- China
- Prior art keywords
- ball
- rod
- sucker rod
- bracket
- rack
- 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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Abstract
The utility model relates to an anti-eccentrically worn hollow sucker rod, which consists of an upper connector, a rod body, blocking caps, a ball, a ball bracket and a lower connector. The upper connector, the rod body and the lower connector are connected in sequence; the ball bracket is sleeved on the rod body; the ball is installed in the ball bracket; the blocking caps are installed on the two ends of the ball bracket; the inner diameter of the ball bracket is larger than the outer diameter of the upper connector; a ball groove is arranged on the ball bracket; and the outside width of the ball groove is smaller than the diameter of the ball. The ball rolls in an oil tube, the sliding friction between the sucker rod and the oil tube is changed into rolling friction, the friction coefficient is low, and the sucker rod is uneasy to be worn, therefore, the anti-eccentrically worn hollow sucker rod can ensure the oil tube and the sucker rod not to be worn, and prolong the production period of the oil well.
Description
One, technical field
The utility model relates to the oil production equipment of petroleum industry, particularly a kind of anti-eccentric wear hollow rod.
Two, background technology
In sucker-rod pumping system, no matter be straight well or inclined shaft, R a T all is relative motion in contact, therefore, exist inevitable wearing and tearing between sucker rod and the oil pipe, particularly deep-well and inclined shaft, sucker rod is easy to bending in oil pipe, the problem of serious sucker rod partial wear oil pipe occurs, in order to solve the eccentric wear problem, worked out some technical methods and measure, but these technical measures all are to be applied on the solid sucker rod, also do not have suitable prevent mill technology and measure on the hollow rod, cause the oil well of hollow rod production wearing and tearing to occur producing between hollow rod and the oil pipe, after producing wearing and tearing oil pipe and hollow rod can not be used, cause the oil well operation, oil well repair free period is short, increase operating cost, increase rod tube consumption, the oil well off-time is many, has reduced crude output.
Three, summary of the invention
The purpose of this utility model is a kind of long service life of design, and the anti-eccentric wear hollow rod of the oil pipe that do not wear and tear again avoids hollow rod the problem of hollow rod, oil pipe eccentric wear to occur in the bending of oil pipe internal cause, inclination.
The purpose of this utility model is achieved in that by top connection, the body of rod, retaining cap, ball, ball rack, lower contact to be formed, top connection, the body of rod, lower contact connect successively, ball rack is sleeved on the body of rod, ball is installed in the ball rack, the retaining cap is installed in the ball rack two ends, the ball rack internal diameter has ball grooves greater than the external diameter of top connection on the ball rack, the outside width of ball grooves is less than the diameter of ball.
The beneficial effects of the utility model are: ball rolls in oil pipe, changes rolling friction into by sliding friction between sucker rod and the oil pipe, and coefficient of friction is low, be not easy wearing and tearing, therefore, this anti-eccentric wear hollow rod can guarantee that oil pipe, sucker rod do not wear and tear, and can prolong the oil well production cycle.
Four, description of drawings
Accompanying drawing 1 is an assembling drawing of the present utility model.
Accompanying drawing 2 is cross-sectional drawings of part 5 in the accompanying drawing 1.
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
As shown in the figure, by top connection 1, the body of rod 2, retaining cap 3, ball 4, ball rack 5, lower contact 6 is formed, top connection 1, the body of rod 2, lower contact 6 connects successively, ball rack 5 is sleeved on the body of rod 2, ball rack is installed ball 4 for 5 li, retaining cap 3 is installed in ball rack 5 two ends, the effect of retaining cap 3 is to place restrictions on ball 4, its ball 4 can not taken off from vertically last from ball rack 5, ball rack 5 internal diameters can be inserted in outside the body of rod 2 ball rack 5 greater than the external diameter of top connection 1 outside top connection 1, ball grooves 7 is arranged on the ball rack 5, the outside width of ball grooves 7 is less than the diameter of ball 4, makes its ball 4 can be from transversely not breaking away from ball rack 5.
Claims (1)
1, a kind of anti-eccentric wear hollow rod, form by top connection (1), the body of rod (2), retaining cap (3), ball (4), ball rack (5), lower contact (6), it is characterized in that: top connection (1), the body of rod (2), lower contact (6) connect successively, ball rack (5) is sleeved on the body of rod (2), ball (4) is installed in ball rack (5) lining, retaining cap (3) is installed in ball rack (5) two ends, ball rack (5) internal diameter is greater than the external diameter of top connection (1), ball grooves (7) is arranged on the ball rack (5), and the outside width of ball grooves (7) is less than the diameter of ball (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201717539U CN201254956Y (en) | 2008-09-18 | 2008-09-18 | Anti-biasing-wear hollow sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201717539U CN201254956Y (en) | 2008-09-18 | 2008-09-18 | Anti-biasing-wear hollow sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201254956Y true CN201254956Y (en) | 2009-06-10 |
Family
ID=40738273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201717539U Expired - Fee Related CN201254956Y (en) | 2008-09-18 | 2008-09-18 | Anti-biasing-wear hollow sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201254956Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652933A (en) * | 2011-03-01 | 2012-09-05 | 中国电子科技集团公司第四十五研究所 | Wafer-fixing machine adhesive-dispensing device |
| CN109098671A (en) * | 2017-06-21 | 2018-12-28 | 中国石油化工股份有限公司 | Hollow rod centering device is used in a kind of oil pipe |
| CN109958734A (en) * | 2019-02-13 | 2019-07-02 | 徐超 | Piston rod with guiding |
-
2008
- 2008-09-18 CN CNU2008201717539U patent/CN201254956Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652933A (en) * | 2011-03-01 | 2012-09-05 | 中国电子科技集团公司第四十五研究所 | Wafer-fixing machine adhesive-dispensing device |
| CN109098671A (en) * | 2017-06-21 | 2018-12-28 | 中国石油化工股份有限公司 | Hollow rod centering device is used in a kind of oil pipe |
| CN109958734A (en) * | 2019-02-13 | 2019-07-02 | 徐超 | Piston rod with guiding |
| CN109958734B (en) * | 2019-02-13 | 2021-06-11 | 绍兴市亿跃智能科技有限公司 | Piston rod with guide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20091019 |