CN109594932B - Oil field pipe pole anticreep ware - Google Patents
Oil field pipe pole anticreep ware Download PDFInfo
- Publication number
- CN109594932B CN109594932B CN201910090107.2A CN201910090107A CN109594932B CN 109594932 B CN109594932 B CN 109594932B CN 201910090107 A CN201910090107 A CN 201910090107A CN 109594932 B CN109594932 B CN 109594932B
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- Prior art keywords
- joint
- connecting part
- intermediate shaft
- oil groove
- oil
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Abstract
The invention discloses an anti-drop device for a pipe rod of an oil field, which relates to the technical field of oil extraction machinery and mainly comprises a first joint, an intermediate shaft, a sliding block, a second joint, an outer sleeve and a bearing, wherein the first joint is arranged on the intermediate shaft; the first joint is connected with the sucker rod on upper portion, the second joint is connected with the sucker rod of lower part, the first sub-unit connection jackshaft that connects, the outer sleeve is connected on second joint upper portion, the activity sets up a slider between jackshaft and the outer sleeve, through reverse threaded connection between jackshaft and the slider, be connected through special-shaped tooth between slider and the second joint, when sucker rod forward rotation, be connected the transmission moment of torsion through special-shaped tooth between slider and the second joint, when sucker rod reverse rotation, rotate along reverse threaded between slider and the jackshaft, thereby make the slider go upward thereby make the special-shaped tooth separation between slider and the second joint, thereby release the moment of torsion on the sucker rod.
Description
Technical Field
The invention relates to the technical field of oil extraction machinery, in particular to an oil field pipe rod anti-falling device.
Background
The sucker rod is the slender rod piece of beam-pumping unit well, connects the polished rod on it, and the lower oil-well pump plays the effect of transmission power, and many other parts need be connected at the during operation to the sucker rod, and wherein oil field pipe pole anticreep ware is indispensable, and oil field pipe pole anticreep ware is used for eliminating the radial moment of torsion of sucker rod, prevents that the sucker rod from tripping.
The fastness of present oil field pipe pole anticreep ware is not enough, and anticreep ware and the connection position that connects mostly only single threaded connection structure, and it is not hard up easily after long-time work, and the screw thread can be not hard up backward, lacks stop gear to lack lubricating arrangement, make easy corrosion after the long-time work of junction, cause the intensity to descend.
Therefore, a new anti-slip device for pipe rods in oil fields is needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides the anti-falling device for the pipe rod of the oil field, which has a simple structure and a good anti-falling effect.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an anti-drop device for an oil field pipe rod, which comprises a first joint, an intermediate shaft, a sliding block, a second joint, an outer sleeve and a bearing, wherein the first joint is fixedly connected with the intermediate shaft;
the first joint is a cylindrical joint, a first connecting part is arranged on the inner wall of the first joint, and the upper part of the first connecting part is used for being connected with a sucker rod on the upper part of the oilfield tubular rod anti-tripping device;
the top end of the intermediate shaft is provided with a second connecting part matched with the first connecting part, the first connecting part is matched and connected with the second connecting part, the bottom end of the intermediate shaft is provided with a first reverse thread, the middle part of the intermediate shaft is provided with a bearing fixing part, and the bearing is arranged on the bearing fixing part;
the sliding block is movably arranged between the middle shaft and the second joint; the top end of the sliding block is provided with a first groove, the inner wall of the first groove is provided with a second reverse thread matched with the first reverse thread, and the first reverse thread is in sliding connection with the second reverse thread; a first torque tooth is arranged at the bottom end of the sliding block;
the second joint top end is provided with a second torque tooth matched with the first torque tooth, and the first torque tooth is matched and connected with the second torque tooth; a third connecting part is arranged in the middle of the second joint; the bottom end of the second joint is provided with a fourth connecting part which is used for being connected with a sucker rod at the lower part of the oilfield tubular rod anti-falling device;
the outer sleeve is a cylinder body with a cover and without a bottom, and the cover of the outer sleeve is provided with a first through hole; a fifth connecting part matched with the third connecting part is arranged on the inner wall of the lower part of the outer sleeve, and the third connecting part is connected with the fifth connecting part in a matching way;
the upper part of the middle shaft penetrates through the first through hole and then is connected with the first joint.
Optionally, the first connecting portion and the fifth connecting portion are both internal threads, and the second connecting portion, the third connecting portion and the fourth connecting portion are both external threads.
Optionally, the first torque tooth and the second torque tooth are both shaped teeth extending centripetally in the radial direction, two sides of each shaped tooth are respectively located on one diameter of the circumference, and the top of each shaped tooth is in a circular arc shape or an inclined plane shape.
Optionally, a first oil groove is formed in the top of the intermediate shaft; a first oil hole is formed in the bottom of the first oil groove; the first oil hole penetrates a side wall of the first oil groove.
Optionally, a first sponge block is arranged in the first oil groove.
Optionally, a second oil groove is arranged at the top of the second joint; a second oil hole is formed in the bottom of the second oil groove; the second oil hole penetrates a side wall of the second oil groove.
Optionally, a second sponge block is arranged in the second oil groove.
Optionally, the bearing is a radial thrust bearing.
Optionally, a friction block is arranged on the outer wall of the sliding block.
Optionally, the friction block is a PE wear-resistant block or a polyethylene block.
Compared with the prior art, the invention has the following technical effects:
the main structure of the anti-drop device for the pipe rod of the oil field comprises a first joint, an intermediate shaft, a sliding block, a second joint, an outer sleeve and a bearing; the first joint is connected with the sucker rod on upper portion, the second joint is connected with the sucker rod of lower part, the first sub-unit connection jackshaft that connects, the outer sleeve is connected on second joint upper portion, the activity sets up a slider between jackshaft and the outer sleeve, through reverse threaded connection between jackshaft and the slider, be connected through special-shaped tooth between slider and the second joint, when sucker rod forward rotation, be connected the transmission moment of torsion through special-shaped tooth between slider and the second joint, when sucker rod reverse rotation, rotate along reverse threaded between slider and the jackshaft, thereby make the slider go upward thereby make the special-shaped tooth separation between slider and the second joint, thereby release the moment of torsion on the sucker rod.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of an oilfield tubular rod anti-slip device of the present invention;
FIG. 2 is a schematic view of a first perspective structure of a slider in the anti-slip device for pipe rods in an oilfield according to the present invention;
FIG. 3 is a schematic structural view of a second perspective of a slider in the anti-slip device for pipe rods in an oilfield according to the present invention;
FIG. 4 is a schematic structural diagram of a second joint in the oilfield tubular rod anti-slip device of the present invention.
Description of reference numerals: 1. a first joint; 2. a first oil groove; 3. a first oil hole; 4. an intermediate shaft; 5. a bearing; 6. a slider; 7. a friction block; 8. a second joint; 9. an outer sleeve; 10. a second oil hole; 11. a second oil groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the embodiment provides an oilfield tubular rod anti-slip device, which includes a first joint 1, an intermediate shaft 4, a slider 6, a second joint 8, an outer sleeve 9 and a bearing 5; the first joint 1 is a cylindrical joint, a first connecting part is arranged on the inner wall of the first joint 1, and the upper part of the first connecting part is used for being connected with a sucker rod on the upper part of the oilfield tubular rod anti-tripping device; the top end of the intermediate shaft 4 is provided with a second connecting part matched with the first connecting part, the first connecting part is matched and connected with the second connecting part, the bottom end of the intermediate shaft 4 is provided with a first reverse thread, the middle part of the intermediate shaft 4 is provided with a bearing 5 fixing part, and the bearing 5 is arranged on the bearing 5 fixing part; the sliding block 6 is movably arranged between the intermediate shaft 4 and the second joint 8; a first groove is formed in the top end of the sliding block 6, a second reverse thread matched with the first reverse thread is arranged on the inner wall of the first groove, and the first reverse thread is in sliding connection with the second reverse thread; the bottom end of the sliding block 6 is provided with a first torque tooth; a second torque tooth matched with the first torque tooth is arranged at the top end of the second joint 8, and the first torque tooth is matched and connected with the second torque tooth; a third connecting part is arranged in the middle of the second joint 8; the bottom end of the second joint 8 is provided with a fourth connecting part which is used for being connected with a sucker rod at the lower part of the oilfield tubular rod anti-falling device; the outer sleeve 9 is a cylinder body with a cover and without a bottom, and the cover of the outer sleeve 9 is provided with a first through hole; a fifth connecting part matched with the third connecting part is arranged on the inner wall of the lower part of the outer sleeve 9, and the third connecting part is connected with the fifth connecting part in a matching way; the upper part of the intermediate shaft 4 penetrates through the first through hole and then is connected with the first joint 1.
In this embodiment, as shown in fig. 1 to 4, the first connecting portion and the fifth connecting portion are both internal threads, and the second connecting portion, the third connecting portion and the fourth connecting portion are all external threads.
The first torque tooth and the second torque tooth are both special-shaped teeth which extend centripetally along the radial direction, two sides of each special-shaped tooth are respectively positioned on one diameter of the circumference, and the tops of the special-shaped teeth are of arc-shaped structures.
The top of the intermediate shaft 4 is provided with a first oil groove 2; the bottom of the first oil groove 2 is provided with a first oil hole 3; the first oil hole 3 penetrates the side wall of the first oil groove 2; a first sponge block is arranged in the first oil groove 2.
A second oil groove 11 is formed in the top of the second joint 8; a second oil hole 10 is formed at the bottom of the second oil groove 11; the second oil hole 10 penetrates through a side wall of the second oil groove 11; and a second sponge block is arranged in the second oil groove 11.
The bearing 5 is a radial thrust bearing 5.
A friction block 7 is arranged on the outer wall of the sliding block 6; the friction block 7 is a PE wear-resistant block.
Through injecting lubricating oil into first oil groove 2 and second oil groove 11, lubricating oil keeps all helicitic texture and bearing 5 to obtain abundant lasting lubrication through each connecting portion of first oilhole 3 and the 10 flow direction of second oilhole, avoids the helicitic texture to rust simultaneously to guarantee the reliability of oil field pipe pole anticreep ware.
Before the assembly, put into the sponge piece in first oil groove 2 and the second oil groove 11, pour lubricating oil into the sponge piece into, utilize the adsorption of sponge piece to preserve lubricating oil.
When the sucker rod connecting device is used, the first connector 1 is connected with the sucker rod on the upper portion through threads, and the second connector 8 is connected with the sucker rod on the lower portion through threads. When the sucker rod normally rotates, the sliding block 6 moves downwards under the action of the first reverse thread and the second reverse thread, so that the first torque teeth and the second torque teeth are meshed with each other, the power transmission is completed, and the ground driving torque is transmitted to the screw pump; when the sucker rod rotates reversely, the sliding block 6 moves upwards under the action of the first reverse thread and the second reverse thread, so that the first torque teeth are separated from the second torque teeth, the sucker rod on the upper part rotates synchronously with the first joint 1, the intermediate shaft 4 and the sliding block 6, the sucker rod on the lower part rotates synchronously with the second joint 8 and the outer sleeve 9, and the outer sleeve 9 and the intermediate shaft 4 can keep relative independent rotation due to the isolation of the intermediate shaft 4 bearing, so that the torque between the sucker rods is released. When the upper sucker rod normally rotates again, the upper sucker rod moves downwards under the action of the first reverse thread and the second reverse thread, so that the first torque tooth and the second torque tooth are reengaged, and power is transmitted continuously.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (3)
1. An oilfield tubular rod anti-drop device is characterized by comprising a first joint, an intermediate shaft, a sliding block, a second joint, an outer sleeve and a bearing; the first joint is a cylindrical joint, a first connecting part is arranged on the inner wall of the first joint, and the upper part of the first connecting part is used for being connected with a sucker rod on the upper part of the oilfield tubular rod anti-tripping device; the top end of the intermediate shaft is provided with a second connecting part matched with the first connecting part, the first connecting part is matched and connected with the second connecting part, the bottom end of the intermediate shaft is provided with a first reverse thread, the middle part of the intermediate shaft is provided with a bearing fixing part, the bearing is arranged on the bearing fixing part, and the bearing is a radial thrust bearing; the sliding block is movably arranged between the middle shaft and the second joint; the top end of the sliding block is provided with a first groove, the inner wall of the first groove is provided with a second reverse thread matched with the first reverse thread, and the first reverse thread is in sliding connection with the second reverse thread; a first torque tooth is arranged at the bottom end of the sliding block; a second torque tooth matched with the first torque tooth is arranged at the top end of the second joint, and the first torque tooth is connected with the second torque tooth in a matched mode; a third connecting part is arranged in the middle of the second joint; the bottom end of the second joint is provided with a fourth connecting part which is used for being connected with a sucker rod at the lower part of the oilfield tubular rod anti-falling device; the outer sleeve is a cylinder body with a cover and without a bottom, and the cover of the outer sleeve is provided with a first through hole; a fifth connecting part matched with the third connecting part is arranged on the inner wall of the lower part of the outer sleeve, and the third connecting part is connected with the fifth connecting part in a matching way; the upper part of the intermediate shaft penetrates through the first through hole and then is connected with the first joint;
the first connecting part and the fifth connecting part are both internal threads, and the second connecting part, the third connecting part and the fourth connecting part are all external threads;
the first torque tooth and the second torque tooth are both special-shaped teeth which extend centripetally along the radial direction, two sides of each special-shaped tooth are respectively positioned on one diameter of the circumference, and the tops of the special-shaped teeth are of circular arc or inclined plane structures;
a first oil groove is formed in the top of the intermediate shaft; a first oil hole is formed in the bottom of the first oil groove; the first oil hole penetrates through a side wall of the first oil groove;
a first sponge block is arranged in the first oil groove;
a second oil groove is formed in the top of the second joint; a second oil hole is formed in the bottom of the second oil groove; the second oil hole penetrates through a side wall of the second oil groove;
and a second sponge block is arranged in the second oil groove.
2. The oilfield tubular rod anti-tripping device of claim 1, wherein the outer wall of the sliding block is provided with a friction block.
3. The oilfield tubular rod anti-tripping device of claim 2, wherein the friction block is a PE wear block or a polyethylene block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090107.2A CN109594932B (en) | 2019-01-30 | 2019-01-30 | Oil field pipe pole anticreep ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090107.2A CN109594932B (en) | 2019-01-30 | 2019-01-30 | Oil field pipe pole anticreep ware |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109594932A CN109594932A (en) | 2019-04-09 |
| CN109594932B true CN109594932B (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910090107.2A Active CN109594932B (en) | 2019-01-30 | 2019-01-30 | Oil field pipe pole anticreep ware |
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| Country | Link |
|---|---|
| CN (1) | CN109594932B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1528754A (en) * | 1976-03-18 | 1978-10-18 | Exploration & Prod Serv Ltd | Catches |
| CN2697300Y (en) * | 2003-12-31 | 2005-05-04 | 汪晶 | Shock-damping dropping resisting device for sucker rod |
| CN201284626Y (en) * | 2008-11-12 | 2009-08-05 | 北京市瑞德石油新技术公司 | Sliding block type anti-releasing device for sucker rod |
| CN203925320U (en) * | 2014-06-17 | 2014-11-05 | 济源市石油机械有限公司 | Automatic clutch Anti-releasing device for sucker rod |
| CN104141459A (en) * | 2014-06-17 | 2014-11-12 | 济源市石油机械有限公司 | Automatic clutch sucker rod separation prevention device |
| CN205025372U (en) * | 2015-10-15 | 2016-02-10 | 杨凤 | Sucker rod anticreep rotary joint |
-
2019
- 2019-01-30 CN CN201910090107.2A patent/CN109594932B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1528754A (en) * | 1976-03-18 | 1978-10-18 | Exploration & Prod Serv Ltd | Catches |
| CN2697300Y (en) * | 2003-12-31 | 2005-05-04 | 汪晶 | Shock-damping dropping resisting device for sucker rod |
| CN201284626Y (en) * | 2008-11-12 | 2009-08-05 | 北京市瑞德石油新技术公司 | Sliding block type anti-releasing device for sucker rod |
| CN203925320U (en) * | 2014-06-17 | 2014-11-05 | 济源市石油机械有限公司 | Automatic clutch Anti-releasing device for sucker rod |
| CN104141459A (en) * | 2014-06-17 | 2014-11-12 | 济源市石油机械有限公司 | Automatic clutch sucker rod separation prevention device |
| CN205025372U (en) * | 2015-10-15 | 2016-02-10 | 杨凤 | Sucker rod anticreep rotary joint |
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| Publication number | Publication date |
|---|---|
| CN109594932A (en) | 2019-04-09 |
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Effective date of registration: 20220425 Address after: No.29 Zhenxing Road, Zhenwu Industrial Park, Jiangdu District, Yangzhou City, Jiangsu Province 225000 Applicant after: YANGZHOU YOUTIAN JINDA INDUSTRIAL Co.,Ltd. Address before: 163000 Room 401, gate 3, No. 1-29, Wanbao community, heat source street, Sartu District, Daqing City, Heilongjiang Province Applicant before: Bian Hongli |
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