CN117005812B - Eccentric wear prevention rope hanger serving as oil pumping unit accessory - Google Patents
Eccentric wear prevention rope hanger serving as oil pumping unit accessory Download PDFInfo
- Publication number
- CN117005812B CN117005812B CN202311238429.XA CN202311238429A CN117005812B CN 117005812 B CN117005812 B CN 117005812B CN 202311238429 A CN202311238429 A CN 202311238429A CN 117005812 B CN117005812 B CN 117005812B
- Authority
- CN
- China
- Prior art keywords
- pump body
- hole
- shell
- pump
- diameter hole
- 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.)
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- 238000005086 pumping Methods 0.000 title claims abstract description 22
- 230000002265 prevention Effects 0.000 title description 4
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 239000011796 hollow space material Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 34
- 210000004907 gland Anatomy 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 20
- 238000012856 packing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
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
- E21B19/02—Rod or cable suspensions
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)
- Details Of Reciprocating Pumps (AREA)
Abstract
An anti-eccentric wear rope hanger used as a pumping unit accessory relates to the technical field of pumping units. The outside fixed connection rope hanger arm of casing, the upper portion of casing center is opened there is a major diameter hole, and the major diameter hole clearance fit in the casing connects the pump body, and two pistons of pump body downside threaded connection symmetrical arrangement, the casing is opened at major diameter hole downside has the overflow room, and the overflow room is annular hollow space. The beneficial effects of the invention are as follows: through utilizing the change of the suspended weight of the sucker rod in the stroke process, the piston is arranged to drive the sucker rod to rotate unidirectionally, the whole rope suspension device has no maintainable part, the service life is long, meanwhile, the piston drives the pump wheel through the high-pressure channel and the one-way valve, the resistance is increased for the excessive hydraulic oil through adjusting the spring stiffness of the one-way valve, the effect of a damper can be achieved by matching the spring with the compression spring of the rope suspension device, the energy of the sucker rod during the suspension weight load alternation is absorbed, the vibration of the sucker rod is reduced, and the service life of the sucker rod is prolonged.
Description
Technical Field
The invention relates to the technical field of oil pumping units, in particular to an anti-eccentric wear rope hanger serving as an oil pumping unit accessory.
Background
In the working process of the pumping unit, the problem that the pumping rod breaks and fails due to eccentric wear and vibration occurs sometimes, so that various eccentric wear prevention rope hanging devices are developed for solving the problems of eccentric wear and vibration of the pumping rod, the principle is basically the same, the automatic rotation of the pumping rod is realized on the rope hanging device through the combined action of a guide chute, an overrunning clutch (a one-way bearing) and a disc spring set to prevent eccentric wear, meanwhile, the buffering of the pumping rod is realized through the disc spring set, the overrunning clutch is easy to wear in the use process, frequent replacement is needed, and the maintenance cost of the rope hanging device is higher.
Disclosure of Invention
In order to solve the problems of easy abrasion and high cost of the existing rope hanger maintenance, the invention provides an anti-eccentric wear rope hanger serving as an accessory of an oil pumping unit.
The technical scheme provided by the invention is as follows: the eccentric wear prevention rope hanger comprises a shell, wherein a rope hanging arm is fixedly connected to the outer side of the shell, a large diameter hole is formed in the upper part of the center of the shell, a small diameter hole is formed in the lower part of the large diameter hole, the large diameter hole in the shell is in clearance fit connection with a pump body, two pistons which are symmetrically arranged are in threaded connection with the lower side of the pump body, an overflow chamber is formed in the lower side of the large diameter hole of the shell, the overflow chamber is an annular hollow space, a sealing hole in the upper side of the overflow chamber and a counter bore in the lower side of the overflow chamber are formed by downwards drilling the bottom surface of the large diameter hole of the shell, the sealing hole and the counter bore are respectively two, the positions of the counter bore and the sealing hole correspond to the pistons, and the pistons and the sealing hole are in clearance fit connection through sealing rings;
the pump body is provided with a pump wheel in an inner hole, circular arc teeth with uniformly distributed circumferences are machined on the outer circle of the pump wheel, the outer circle of the circular arc teeth is in clearance fit connection with the inner hole of the pump body, the lower part of the pump wheel is connected with the pump body through a bearing, the lower part of the pump body is connected with a lower gland through a bolt, the lower gland seals between the lower part of the pump wheel and the pump body through a packing, the upper part of the pump wheel is connected with an upper gland through a bearing, the lower part of the upper gland is provided with a transfer cover, the transfer cover seals the upper part of the pump wheel with the pump body through the packing, the upper part of the pump wheel is a conical hole with a bigger diameter, the lower part of the clamping sleeve is a conical body with a smaller diameter, the conical hole of the pump wheel is in fit connection with the conical body of the clamping sleeve, a sucker rod is clamped in the clamping sleeve, and the sucker rod downwards passes through the pump wheel, the lower gland and the small diameter hole and then stretches out of the shell;
the pump body is provided with two liquid inlet channels and two liquid outlet channels at the arc tooth part, the liquid inlet channels and the liquid outlet channels are arranged at intervals, the shell is provided with two high-pressure channels, each high-pressure channel is communicated with one liquid inlet channel and one counter bore, a one-way valve is arranged in each high-pressure channel, the shell is provided with two low-pressure channels, and each low-pressure channel is communicated with one liquid outlet channel and one overflow chamber;
the spaces of the overflow chamber, the counter bore, the high-pressure channel, the low-pressure channel, the liquid inlet channel and the liquid outlet channel are filled with hydraulic oil;
a compression spring is arranged between the lower gland and the shell.
The sealing rings are arranged on the outer sides of the liquid inlet channel and the liquid outlet channel of the shell, and the piston is connected with the sealing holes through clearance fit of the sealing rings.
A ring groove is processed in the middle of the piston to form a section of thin rod.
The clamping sleeve is of a half-body structure, and the clamping sleeves of the two half-bodies are connected through bolts to clamp the sucker rod.
The beneficial effects of the invention are as follows: through utilizing the change of the suspended weight of the sucker rod in the stroke process, the piston is arranged to drive the sucker rod to rotate unidirectionally, the whole rope suspension device has no maintainable part, the service life is long, meanwhile, the piston drives the pump wheel through the high-pressure channel and the one-way valve, the resistance is increased for the excessive hydraulic oil through adjusting the spring stiffness of the one-way valve, the effect of a damper can be achieved by matching the spring with the compression spring of the rope suspension device, the energy of the sucker rod during the suspended weight load alternation is absorbed, the vibration of the sucker rod during the suspended weight load alternation is reduced, and the service life of the sucker rod is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a section B-B of FIG. 1;
FIG. 4 is a cross-sectional view of a clamping sleeve of the present invention;
FIG. 5 is a schematic view of the piston structure of the present invention;
fig. 6 is a schematic view of the structure of the housing in the present invention.
In the drawing, a shell, a 2-rope hanging arm, a 3-pump body, a 4-pump wheel, a 5-clamping sleeve, a 6-upper gland, a 7-sucker rod, an 8-lower gland, a 9-piston, a 10-counter bore, an 11-high pressure channel, a 12-overflow chamber, a 13-one-way valve, a 14-liquid inlet channel, a 15-liquid outlet channel, a 16-low pressure channel, a 17-thin rod, 18-circular arc teeth, a 19-switching cover, a 20-large diameter hole, a 21-sealing hole and a 22-small diameter hole are arranged.
Detailed Description
As shown in fig. 1 to 6, an anti-eccentric wear rope hanger used as a pumping unit accessory comprises a shell 1, wherein the outer side of the shell 1 is fixedly connected with a rope hanging arm 2, the upper part of the center of the shell 1 is provided with a large-diameter hole 20, the lower part of the large-diameter hole 20 is provided with a small-diameter hole 22, the large-diameter hole 20 in the shell 1 is connected with a pump body 3 in a clearance fit manner, the lower side of the pump body 3 is in threaded connection with two pistons 9 symmetrically arranged, the lower side of the large-diameter hole 20 is provided with an overflow chamber 12, the overflow chamber 12 is an annular hollow space, the bottom surface of the large-diameter hole 20 is downwards drilled with the shell 1 to form a sealing hole 21 at the upper side of the overflow chamber 12 and a counter bore 10 at the lower side of the overflow chamber 12, the positions of the sealing hole 21 and the counter bore 10 are respectively two, the counter bore 10 and the sealing hole 21 correspond to the pistons 9, and the sealing hole 21 are in clearance fit connection through sealing rings;
the pump comprises a pump body 3, a pump body 4, circular arc teeth 18 uniformly distributed on the circumference are machined on the outer circle of the pump body 4, the outer circle of the circular arc teeth 18 is in clearance fit connection with the inner hole of the pump body 3, the lower part of the pump body 4 is connected with the pump body 3 through a bearing, the lower part of the pump body 3 is connected with a lower gland 8 through bolts, the lower gland 8 seals between the lower part of the pump body 4 and the pump body 3 through packing, a clamping sleeve 5 is installed on the upper part of the pump body 4, the upper gland 6 is connected with an upper gland 6 through a bearing, an adapter cover 19 is arranged on the lower part of the upper gland 6, the upper part of the pump body 4 and the pump body 3 are sealed through packing, the upper part of the pump body 4 is a conical hole with a diameter being enlarged, the lower part of the clamping sleeve 5 is a conical body with a diameter being smaller, the conical hole of the pump body 4 and the conical body of the clamping sleeve 5 are in fit connection, an oil pumping rod 7 is clamped in the clamping sleeve 5, and the oil pumping rod 7 passes through the pump body 4, the lower gland 8 and the small diameter hole 22 downwards and then stretches out of a shell 1;
the pump body 3 is provided with two liquid inlet channels 14 and two liquid outlet channels 15 at the arc teeth 18, the liquid inlet channels 14 and the liquid outlet channels 15 are arranged at intervals, the shell 1 is provided with two high-pressure channels 11, each high-pressure channel 11 is communicated with one liquid inlet channel 14 and one counter bore 10, a one-way valve 13 is arranged in each high-pressure channel 11 to prevent the hydraulic oil from flowing backwards, the pump wheel 4 rotates in one direction only, the shell 1 is provided with two low-pressure channels 16, and each low-pressure channel 16 is communicated with one liquid outlet channel 15 and the overflow chamber 12;
the spaces of the overflow chamber 12, the counter bore 10, the high-pressure channel 11, the low-pressure channel 16, the liquid inlet channel 14 and the liquid outlet channel 15 are filled with hydraulic oil;
a compression spring is arranged between the lower gland 8 and the shell 1.
The housing 1 is provided with sealing rings outside the liquid inlet channel 14 and the liquid outlet channel 15.
A ring groove is formed in the middle of the piston 9 to form a section of thin rod 17 which is used as a storage space for hydraulic oil in backflow.
The clamping sleeve 5 is of a half-body structure, and the clamping sleeves 5 of the two half-bodies are connected through bolts to clamp the sucker rod 7.
When the pumping rod 7 is in actual use, when the cantilever weight is maximum, the clamping sleeve 5, the pump wheel 4 and the pump body 3 compress the compression spring, the piston 9 moves downwards, after the piston 9 enters the counter bore 10, hydraulic oil is extruded from the counter bore 10 to the high-pressure channel 11 and the liquid inlet channel 14, the hydraulic oil pushes the circular arc teeth 18 to drive the pump wheel 4 to rotate, the hydraulic oil behind the circular arc teeth 18 flows back to the overflow chamber 12 from the liquid outlet channel 15 and the low-pressure channel 16, and as the one-way valve 13 is arranged on the high-pressure channel 11, the hydraulic oil can only flow out from the high-pressure channel 11 and can not flow back, and in each stroke of the pumping rod 7, the pump wheel 4 rotates once, and the pump wheel 4 drives the clamping sleeve 5 and the pumping rod 7 to integrally rotate to play a role in preventing eccentric wear.
Through utilizing the change of the suspended weight of sucker rod 7 in the stroke in-process, set up piston 9 drive sucker rod 7 unidirectional rotation, whole rope hanger does not have maintainable part, long service life, simultaneously piston 9 passes through high-pressure channel 11 and check valve 13 drive pump impeller 4, through adjusting the spring rate of check valve 13, increase the resistance for the hydraulic oil that overflows, the effect that can play the attenuator with the compression spring cooperation of rope hanger, the energy when absorbing sucker rod 7 suspended weight load alternates reduces the vibration when sucker rod 7 suspended weight load alternates, improve sucker rod 7's life.
Claims (4)
1. The utility model provides an prevent eccentric wear rope hanger as beam-pumping unit accessory, includes casing (1), its characterized in that: the outer side of the shell (1) is fixedly connected with the rope hanging arm (2), the upper part of the center of the shell (1) is provided with a large-diameter hole (20), the lower part of the large-diameter hole (20) is provided with a small-diameter hole (22), the large-diameter hole (20) in the shell (1) is connected with the pump body (3) in a clearance fit manner, the lower side of the pump body (3) is in threaded connection with two pistons (9) symmetrically arranged, the lower side of the large-diameter hole (20) is provided with an overflow chamber (12), the overflow chamber (12) is an annular hollow space, the shell (1) is downwards drilled at the bottom surface of the large-diameter hole (20) to form a sealing hole (21) at the upper side of the overflow chamber (12) and a counter bore (10) at the lower side of the overflow chamber (12), the positions of the sealing hole (21) and the counter bore (10) are respectively two, the positions of the counter bore (10) and the sealing hole (21) correspond to the pistons (9), and the pistons (9) are in clearance fit connection through sealing rings;
the inner hole of the pump body (3) is provided with a pump wheel (4), the outer circle of the pump wheel (4) is provided with circular arc teeth (18) uniformly distributed in the circumference, the outer circle of the circular arc teeth (18) is in clearance fit connection with the inner hole of the pump body (3), the lower part of the pump wheel (4) is connected with the pump body (3) through a bearing, the lower part of the pump body (3) is connected with a lower gland (8) through a bolt, the lower gland (8) seals between the lower part of the pump wheel (4) and the pump body (3) through a packing seal, the upper part of the pump wheel (4) is provided with a clamping sleeve (5), the upper part of the clamping sleeve (5) is connected with an upper gland (6) through a bearing, the upper gland (6) is connected with the pump body (3) through a bolt, the lower part of the upper gland (6) is provided with a transfer cover (19), the transfer cover (19) seals the upper part of the pump wheel (4) with the pump body (3) through a packing seal, the upper part of the pump wheel (4) is provided with a conical hole with a diameter which is reduced, the lower part of the clamping sleeve (5) is provided with a conical body with a diameter which is reduced, the conical hole of the pump wheel (4) is connected with the conical hole of the clamping sleeve (5) through a packing seal, the conical hole (7), the conical hole of the pump wheel (4) and the clamping rod (7) extends downwards through the conical hole (7) and the clamping rod (1) and the small diameter of the pump body (1) passes down through the clamping rod (7);
two liquid inlet channels (14) and two liquid outlet channels (15) are formed in the position of the circular arc tooth (18) of the pump body (3), the liquid inlet channels (14) and the liquid outlet channels (15) are arranged at intervals, two high-pressure channels (11) are formed in the shell (1), each high-pressure channel (11) is communicated with one liquid inlet channel (14) and one counter bore (10), a one-way valve (13) is arranged in each high-pressure channel (11), two low-pressure channels (16) are formed in the shell (1), and each low-pressure channel (16) is communicated with one liquid outlet channel (15) and an overflow chamber (12);
the spaces of the overflow chamber (12), the counter bore (10), the high-pressure channel (11), the low-pressure channel (16), the liquid inlet channel (14) and the liquid outlet channel (15) are filled with hydraulic oil;
a compression spring is arranged between the lower gland (8) and the shell (1).
2. An anti-bias wear rope hanger as a pumping unit fitting of claim 1, wherein: the outer sides of the liquid inlet channel (14) and the liquid outlet channel (15) of the shell (1) are provided with sealing rings.
3. An anti-bias wear rope hanger as a pumping unit fitting of claim 1, wherein: a ring groove is processed in the middle of the piston (9) to form a section of thin rod (17).
4. An anti-bias wear rope hanger as a pumping unit fitting of claim 1, wherein: the clamping sleeve (5) is of a half-body structure, and the clamping sleeves (5) of the two half-bodies are connected through bolts to clamp the sucker rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311238429.XA CN117005812B (en) | 2023-09-25 | 2023-09-25 | Eccentric wear prevention rope hanger serving as oil pumping unit accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311238429.XA CN117005812B (en) | 2023-09-25 | 2023-09-25 | Eccentric wear prevention rope hanger serving as oil pumping unit accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117005812A CN117005812A (en) | 2023-11-07 |
| CN117005812B true CN117005812B (en) | 2023-12-08 |
Family
ID=88574695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311238429.XA Active CN117005812B (en) | 2023-09-25 | 2023-09-25 | Eccentric wear prevention rope hanger serving as oil pumping unit accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117005812B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022430A (en) * | 1976-08-19 | 1977-05-10 | Donald Wayne Felder | Sucker rod adjustment tool |
| US5427178A (en) * | 1994-02-17 | 1995-06-27 | Rodec Tool Company Inc. | Tubing rotator and hanger |
| CA2239641A1 (en) * | 1998-06-05 | 1999-12-05 | Edward Grenke | Continuous running gear pump brake system |
| CA2517919A1 (en) * | 2005-08-18 | 2007-02-18 | Vagif Ali-Zade | Polished rod rotator |
| CN201068745Y (en) * | 2007-07-16 | 2008-06-04 | 张德法 | Pumping rod rope-suspending device |
| CN201606019U (en) * | 2009-07-13 | 2010-10-13 | 天津市大港区龙新石油机械制造有限公司 | Novel sucker rod rotor |
| CN203729910U (en) * | 2013-10-30 | 2014-07-23 | 张兵 | Pumping rod rotation suspension device |
| CN213478251U (en) * | 2021-05-19 | 2021-06-18 | 东营市江润石油科技发展有限公司 | Sucker rod rotating device |
| CN114622867A (en) * | 2022-03-21 | 2022-06-14 | 奥宸科技有限公司 | Multifunctional protector for sucker rod of oil well |
| CN217813342U (en) * | 2022-07-14 | 2022-11-15 | 大庆海啸机械设备制造有限公司 | Multifunctional hydraulic rope hanger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RS61416B1 (en) * | 2015-04-08 | 2021-03-31 | 1914415 Alberta Ltd | Polished rod rotator with height adjuster |
-
2023
- 2023-09-25 CN CN202311238429.XA patent/CN117005812B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022430A (en) * | 1976-08-19 | 1977-05-10 | Donald Wayne Felder | Sucker rod adjustment tool |
| US5427178A (en) * | 1994-02-17 | 1995-06-27 | Rodec Tool Company Inc. | Tubing rotator and hanger |
| CA2239641A1 (en) * | 1998-06-05 | 1999-12-05 | Edward Grenke | Continuous running gear pump brake system |
| CA2517919A1 (en) * | 2005-08-18 | 2007-02-18 | Vagif Ali-Zade | Polished rod rotator |
| CN201068745Y (en) * | 2007-07-16 | 2008-06-04 | 张德法 | Pumping rod rope-suspending device |
| CN201606019U (en) * | 2009-07-13 | 2010-10-13 | 天津市大港区龙新石油机械制造有限公司 | Novel sucker rod rotor |
| CN203729910U (en) * | 2013-10-30 | 2014-07-23 | 张兵 | Pumping rod rotation suspension device |
| CN213478251U (en) * | 2021-05-19 | 2021-06-18 | 东营市江润石油科技发展有限公司 | Sucker rod rotating device |
| CN114622867A (en) * | 2022-03-21 | 2022-06-14 | 奥宸科技有限公司 | Multifunctional protector for sucker rod of oil well |
| CN217813342U (en) * | 2022-07-14 | 2022-11-15 | 大庆海啸机械设备制造有限公司 | Multifunctional hydraulic rope hanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117005812A (en) | 2023-11-07 |
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