CN108868668B - Manual sucker rod coupling detacher - Google Patents
Manual sucker rod coupling detacher Download PDFInfo
- Publication number
- CN108868668B CN108868668B CN201810706576.8A CN201810706576A CN108868668B CN 108868668 B CN108868668 B CN 108868668B CN 201810706576 A CN201810706576 A CN 201810706576A CN 108868668 B CN108868668 B CN 108868668B
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- China
- Prior art keywords
- shell
- slip
- worm
- sucker rod
- wedge
- 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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- 230000008878 coupling Effects 0.000 title claims abstract description 30
- 238000010168 coupling process Methods 0.000 title claims abstract description 30
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Rehabilitation Tools (AREA)
- Gear Transmission (AREA)
Abstract
The invention belongs to a manual sucker rod coupling detacher; the slip wrench comprises a main wrench part and a back wrench part, wherein the main wrench part comprises a slip support, at least three slips are arranged in the slip support, the outer side of each slip is matched with a wedge-shaped slope plate arranged in a worm gear through a roller, the worm gear is arranged in a shell, the upper part of the shell is provided with a cylindrical shell, a worm matched with the external thread of the worm gear is arranged in the cylindrical shell, a rotating hand wheel is arranged at one side end of the worm, a shell left cover plate and a shell right cover plate are respectively arranged on two sides of the shell, a positioning block is arranged on the shell left cover plate, one end of the positioning block is matched with teeth of the slip support, and the other end of the positioning; the bottom of the shell is connected with the base of the bracket; the device has the advantages of simple structure, reasonable design, capability of rapidly and accurately disassembling the sucker rod coupling, capability of effectively reducing the labor intensity and improving the working efficiency, and capability of eliminating potential safety hazards and ensuring the personal safety of post operators.
Description
Technical Field
The invention belongs to the technical field of oilfield workover devices, and particularly relates to a manual sucker rod coupling detacher.
Background
In the production process of the pumping unit, the relative displacement exists between the pipe rods and is influenced by a plurality of factors such as well structure, pipe column combination, production parameters, crude oil viscosity and the like, so that the abrasion of an oil pipe and a pumping rod is caused; in the later stage of production and development, the working medium of the sucker rod pump well is changed by extra-high water content, so that the lubrication between the sucker rod and the oil pipe is changed from crude oil to formation water, the lubricating property is reduced, the friction coefficient is increased, the abrasion degree between the sucker rod and the oil pipe is aggravated, and the abrasion degree caused by the fact that the outer diameter of a sucker rod coupling is larger is also larger.
At present, in the construction of pump inspection and well repair, the worn sucker rod coupling needs to be disassembled and replaced on the ground. At present when the sucker rod coupling is dismantled and changed on site, rely on post workman to dismantle with the breakout tongs on ground, dismantle the flow and can divide into the sucker rod and beat back-up tong, the sucker rod coupling beats active tong, afterburning thick stick pine is buckled, active tong is broken out, get active tong and get operation steps such as back-up tong, every well time will dismantle about and change 150 and give other 200 sucker rod couplings, whole dismantlement process is cyclic and all around, intensity of labour is big, consuming time and energy, it is inefficient to dismantle, still has the potential safety hazard of bodily injury.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the manual sucker rod coupling detacher which is simple in structure, reasonable in design and capable of rapidly and accurately detaching a sucker rod coupling, effectively reducing the labor intensity and improving the working efficiency, and eliminating potential safety hazards to ensure the personal safety of post operators.
The purpose of the invention is realized by the following steps: the slip wrench comprises a main wrench part and a back wrench part, wherein the main wrench part comprises a slip support, at least three slips are arranged in the slip support, the outer side of each slip is matched with a wedge-shaped slope plate arranged in a worm gear through a roller, the worm gear is arranged in a shell, the upper part of the shell is provided with a cylindrical shell, a worm matched with the external thread of the worm gear is arranged in the cylindrical shell, a rotating hand wheel is arranged at one side end of the worm, a shell left cover plate and a shell right cover plate are respectively arranged on two sides of the shell, a positioning block is arranged on the shell left cover plate, one end of the positioning block is matched with teeth of the slip support, and the other end of the positioning; the bottom of the shell is connected with the base of the support, the support comprises a base and a convex block groove which is arranged on one side of the base and has a structure integrated with the base, a fixed clamping block is arranged in the convex block groove, and the groove of the fixed clamping block and the inner diameter of the slip support are on the same horizontal plane.
Preferably, the slip support comprises a back plate, the back plate is connected with a front plate with teeth on the outer circumference through a plurality of connecting plates, and the slips are arranged between the adjacent connecting plates through torsion springs.
Preferably, the lower part of the slip is provided with slip teeth, and the top of the slip is provided with an arc groove matched with the roller.
Preferably, a dovetail groove matched with the wedge-shaped slope plate is formed in the inner wall of the worm wheel, the wedge-shaped slope plate is connected with the inner wall of the worm wheel through slope plate screws, and a plurality of steel balls are arranged between the two sides of the outer circumference of the worm wheel and the left cover plate and the right cover plate of the shell respectively.
Preferably, the shell and the cylindrical shell are of an integral structure, a meshing hole is formed between the cylindrical shell and the shell, bearings corresponding to the worm are arranged at two ends of the cylindrical shell respectively, and one end of the worm is connected with the rotary hand wheel through a cap nut.
Preferably, the shell is connected with the shell left cover plate and the shell right cover plate through a plurality of cover plate screws.
Preferably, the shell is fixedly connected with the base of the bracket through a bracket screw.
Preferably, the length between the grooves of the fixed clamping blocks is matched with the length of the square shoulder of the sucker rod.
The invention has the advantages of simple structure, reasonable design, capability of rapidly and accurately disassembling the sucker rod coupling, effective reduction of labor intensity and improvement of working efficiency, and capability of eliminating potential safety hazards and ensuring the personal safety of post operators.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic side view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a cross-sectional view of the side of the present invention.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals refer to like parts throughout. For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.
As shown in fig. 1, 2, 3 and 4, the invention relates to a manual sucker rod coupling detacher, which comprises a main tong part and a back-up tong part, wherein the main tong part comprises a slip support 10, at least three slips 7 are arranged inside the slip support 10, the outer side of each slip 7 is matched with a wedge-shaped slope plate 6 arranged inside a worm wheel 12 through a roller 8, the worm wheel 12 is arranged in a shell 13, the upper part of the shell 13 is provided with a cylindrical shell 23, a worm 15 matched with the external thread of the worm wheel 12 is arranged in the cylindrical shell 23, one side end part of the worm 15 is provided with a rotary hand wheel 16, two sides of the shell 13 are respectively provided with a shell left cover plate 4 and a shell right cover plate 18, the shell left cover plate 4 is provided with a positioning block 2, one end of the positioning block 2 is matched with the tooth of the slip support 10, and the other end of; the bottom of the shell 13 is connected with a base 24 of the support 19, the support 19 comprises a base 24 and a protruding block groove 25 which is arranged on one side of the base 24 and integrated with the base 24 into a whole, a fixed clamping block 20 is arranged inside the protruding block groove 25, and the groove of the fixed clamping block 20 and the inner diameter of the slip support 10 are on the same horizontal plane. The slip spider 10 includes a back plate 26, the back plate 26 being connected to an outer circumferential toothed front plate 28 by a plurality of connecting plates 27, the slips 7 being disposed between adjacent connecting plates 27 by torsion springs 9. The both sides of slips 7 are equipped with the slips splice bar respectively, and the both sides of connecting plate 27 are equipped with the leg joint muscle respectively, and slips 7 both sides are equipped with torsional spring 9 respectively, and the one end of torsional spring 9 links to each other with the slips splice bar, and the other end of torsional spring 9 links to each other with the leg joint muscle. Slip teeth are arranged on the lower portion of the slip 7, and an arc groove matched with the roller 8 is formed in the top of the slip 7. The inner wall of the worm wheel 12 is provided with a dovetail groove matched with the wedge-shaped slope plate 6, the wedge-shaped slope plate 6 is connected with the inner wall of the worm wheel 12 through slope plate screws 11, and a plurality of steel balls 22 are arranged between two sides of the outer circumference of the worm wheel 12 and the left cover plate 4 and the right cover plate 18 of the shell respectively. The shell 13 and the cylindrical shell 23 are of an integral structure, a meshing hole is formed between the cylindrical shell 23 and the shell 13, two ends of the cylindrical shell 23 are respectively provided with a bearing 14 corresponding to the worm 15, and one end part of one side of the worm 15 is connected with the rotary hand wheel 16 through a cap nut 17. The shell 13 is connected with the shell left cover plate 4 and the shell right cover plate 18 through a plurality of cover plate screws 5. The housing 13 is fixedly connected with the base 24 of the bracket 19 through a bracket screw 21. The length between the grooves of the fixed fixture block 20 is matched with the length of the square shoulder of the sucker rod.
When the invention is used, a sucker rod coupling is placed into a jaw consisting of a slip support 10 and a slip 7 in a shell 13, and a square shoulder of the sucker rod connected with the sucker rod coupling is clamped in a groove of a fixed clamping block 20; after the operation is finished, the pulling rod 1 is rotated clockwise, the pulling rod 1 drives the positioning block 2 to be meshed with teeth of the slip support 10 through the pin 3, after the meshing is finished, the rotating hand wheel 16 is rotated clockwise, the rotating hand wheel 16 drives the worm wheel 12 and the wedge-shaped slope plate 6 to rotate anticlockwise through the worm 15, when the worm wheel 12 and the wedge-shaped slope plate 6 rotate, the slip support 10 is meshed with the positioning block 2, and under the condition of meshing braking, the slip support 10 does not rotate; in the process, the slip support 10 and the slip 7 have relative movement with the worm gear 12 and the wedge-shaped slope plate 6, and the relative movement can enable the roller 8 at the top of the slip 7 to overcome the resistance of the torsion spring 9 to climb on the inclined plane of the wedge-shaped slope plate 6 and force the slip 7 to move towards the sucker rod coupling at the center of the shell (namely in the jaw) until the sucker rod coupling is bitten. After the slips teeth on the inner side of the slips 7 bite the coupling of the sucker rod, the pulling rod 1 is rotated anticlockwise, and the pulling rod 1 drives the positioning block 2 to be disengaged from the teeth of the slips support 10 through the pin 3. And continuing to rotate the rotating hand wheel 16 clockwise, wherein the rotating hand wheel 16 drives the worm wheel 12, the wedge-shaped slope plate 6, the slip support 10, the slip 7 and the sucker rod coupling to rotate and break out through the worm 15. After the sucker rod coupling is broken out, the rotating hand wheel 16 is rotated anticlockwise, the rotating hand wheel 16 drives the worm wheel 12 and the wedge-shaped slope plate 6 to rotate clockwise through the worm 15, the roller 8 at the top of the slip 7 descends on the inclined plane of the wedge-shaped slope plate 6 under the elastic action of the torsion spring 9, the slip 7 restores to the original position in the slip support 10 under the action of the torsion spring 9, and thus a disassembly process is completed. It should be noted that in the actual use process, the fixed fixture block 20 matched with the size of the square shoulder of the sucker rod can be selectively replaced, so that sucker rods with different specifications and sizes can be disassembled by applying the invention, and the working efficiency can be greatly improved.
In the description of the present invention, it is to be understood that the terms "inside", "top", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "provided", "mounted", "connected", and the like are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; or communication between the interior of the two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
Claims (1)
1. The utility model provides a manual formula sucker rod coupling detacher which characterized in that: the detacher comprises a main tong part and a back tong part, wherein the main tong part comprises a slip support (10), at least three slips (7) are arranged in the slip support (10), the outer side of each slip (7) is matched with a wedge-shaped slope plate (6) arranged in a worm wheel (12) through a roller (8), the worm wheel (12) is arranged in the shell (13), the upper part of the shell (13) is provided with a cylindrical shell (23), a worm (15) matched with the external thread of the worm wheel (12) is arranged in the cylindrical shell (23), a rotating hand wheel (16) is arranged at one side end part of the worm (15), a shell left cover plate (4) and a shell right cover plate (18) are respectively arranged on two sides of the shell (13), a positioning block (2) is arranged on the shell left cover plate (4), one end of the positioning block (2) is matched with teeth of the slip support (10), and the other end of the positioning block (2) is connected with the pulling rod (1) through a pin (3); the bottom of the shell (13) is connected with a base (24) of the support (19), the support (19) comprises the base (24) and a convex block groove (25) which is arranged on one side of the base (24) and integrated with the base (24), a fixed clamping block (20) is arranged in the convex block groove (25), and the groove of the fixed clamping block (20) and the inner diameter of the slip support (10) are on the same horizontal plane;
the slip support (10) comprises a back plate (26), the back plate (26) is connected with a front plate (28) with teeth on the outer circumference through a plurality of connecting plates (27), and the slips (7) are arranged between the adjacent connecting plates (27) through torsion springs (9);
slip teeth are arranged at the lower part of the slip (7), and an arc groove matched with the roller (8) is formed in the top of the slip (7);
a dovetail groove matched with the wedge-shaped slope plate (6) is formed in the inner wall of the worm wheel (12), the wedge-shaped slope plate (6) is connected with the inner wall of the worm wheel (12) through slope plate screws (11), and a plurality of steel balls (22) are arranged between two sides of the outer circumference of the worm wheel (12) and a left cover plate (4) and a right cover plate (18) of the shell respectively;
the shell (13) and the cylindrical shell (23) are of an integral structure, a meshing hole is formed between the cylindrical shell (23) and the shell (13), bearings (14) corresponding to the worm (15) are respectively arranged at two ends of the cylindrical shell (23), and one end of the worm (15) is connected with the rotary hand wheel (16) through a cap nut (17);
the shell (13) is connected with the shell left cover plate (4) and the shell right cover plate (18) through a plurality of cover plate screws (5);
the shell (13) is fixedly connected with a base (24) of the bracket (19) through a bracket screw (21);
the length between the grooves of the fixed clamping blocks (20) is matched with the length of the square shoulder of the sucker rod;
the disassembling method of the sucker rod coupling disassembling device comprises the following steps: putting the sucker rod coupling into a jaw consisting of a slip support (10) and a slip (7) in a shell (13), and clamping a square shoulder of the sucker rod connected with the sucker rod coupling in a groove of a fixed clamping block (20); after the operation is finished, the pulling rod (1) is rotated clockwise, the pulling rod (1) drives the positioning block (2) to be meshed with teeth of the slip support (10) through the pin (3), after the meshing is finished, the rotating hand wheel (16) is rotated clockwise, the rotating hand wheel (16) drives the worm wheel (12) and the wedge-shaped slope plate (6) to rotate anticlockwise through the worm (15), when the worm wheel (12) and the wedge-shaped slope plate (6) rotate, the slip support (10) is meshed with the positioning block (2), and under the condition of meshing braking, the slip support (10) does not rotate; in the process, the slip support (10) and the slip (7) move relative to the worm wheel (12) and the wedge-shaped slope plate (6), and the relative movement can enable the roller (8) at the top of the slip (7) to overcome the resistance of the torsion spring (9) to climb on the inclined plane of the wedge-shaped slope plate (6) and force the slip (7) to move towards the sucker rod coupling at the center of the shell until the sucker rod coupling is bitten; when the slips teeth on the inner side of the slips (7) bite the coupling of the sucker rod, the pulling rod (1) is rotated anticlockwise, and the pulling rod (1) drives the positioning block (2) to be disengaged from the teeth of the slip support (10) through the pin (3); the rotating hand wheel (16) is continuously rotated clockwise, the rotating hand wheel (16) drives the worm wheel (12), the wedge-shaped slope plate (6), the slip support (10), the slip (7) and the sucker rod coupling to carry out rotary tripping through the worm (15); after the sucker rod coupling is broken out, the rotating hand wheel (16) is rotated anticlockwise, the rotating hand wheel (16) drives the worm wheel (12) and the wedge-shaped slope plate (6) to rotate clockwise through the worm (15), the roller (8) at the top of the slip (7) descends on the inclined plane of the wedge-shaped slope plate (6) under the elastic action of the torsion spring (9), and the slip (7) restores to the original position in the slip support (10) under the action of the torsion spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706576.8A CN108868668B (en) | 2018-06-20 | 2018-06-20 | Manual sucker rod coupling detacher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706576.8A CN108868668B (en) | 2018-06-20 | 2018-06-20 | Manual sucker rod coupling detacher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868668A CN108868668A (en) | 2018-11-23 |
| CN108868668B true CN108868668B (en) | 2020-07-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810706576.8A Expired - Fee Related CN108868668B (en) | 2018-06-20 | 2018-06-20 | Manual sucker rod coupling detacher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868668B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390539B (en) * | 2020-01-08 | 2021-05-25 | 吴立中 | Pipe screwing machine and control method thereof |
| CN112796687A (en) * | 2020-12-24 | 2021-05-14 | 王有杰 | Pneumatic object running device |
| CN115059414B (en) * | 2022-08-17 | 2022-11-11 | 江苏盖亚环境科技股份有限公司 | Automatic change floating hydraulic clamping mechanism of gyration lifting formula |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053236U (en) * | 1989-02-16 | 1990-02-21 | 肖乐 | Clamp of jaw of power tongs for oil sucker rod |
| CN1064108C (en) * | 1998-04-28 | 2001-04-04 | 傅永森 | Clamping mechanism with combined inner camber and climbing roller for hydraulic pincers |
| CN2411336Y (en) * | 1999-12-29 | 2000-12-20 | 三联集团临朐石油机械总厂 | Power pliers clamp mechanism |
| CN101343986B (en) * | 2008-08-23 | 2011-01-26 | 大庆石油学院 | Automatized shaft mouth operation clamp for petroleum well workover |
| CN201747301U (en) * | 2010-08-10 | 2011-02-16 | 吴立中 | Open-mouth power tongs clamping mechanism |
| CN102606093A (en) * | 2011-01-18 | 2012-07-25 | 盐城特达钻采设备有限公司 | Sucker rod screwing machine |
| CN205349252U (en) * | 2016-02-28 | 2016-06-29 | 周震岩 | Sucker rod safety back -off slips |
-
2018
- 2018-06-20 CN CN201810706576.8A patent/CN108868668B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN108868668A (en) | 2018-11-23 |
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