CN101949279A - Counterweight balancing vertical hydraulic pumping unit - Google Patents

Counterweight balancing vertical hydraulic pumping unit Download PDF

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Publication number
CN101949279A
CN101949279A CN201010296197XA CN201010296197A CN101949279A CN 101949279 A CN101949279 A CN 101949279A CN 201010296197X A CN201010296197X A CN 201010296197XA CN 201010296197 A CN201010296197 A CN 201010296197A CN 101949279 A CN101949279 A CN 101949279A
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CN
China
Prior art keywords
hydraulic cylinder
movable pulley
oil pumper
counterweigh
connector
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Pending
Application number
CN201010296197XA
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Chinese (zh)
Inventor
叶江波
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叶江波
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Priority to CN201010296197XA priority Critical patent/CN101949279A/en
Publication of CN101949279A publication Critical patent/CN101949279A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a counterweight balancing vertical hydraulic pumping unit, which comprises a machine frame, a hydraulic cylinder and a rope hanger. The rope hanger is connected with a first connection piece which is connected with the machine frame by rounding a first head sheave on the top of the machine frame and a first movable pulley in the machine frame; the hydraulic cylinder is connected with the first movable pulley and transfers thrust or tension through the first connection piece; a counterweight block is hung on one side of the machine frame relative to the rope hanger through the connection piece; the connection piece is connected with the machine frame by rounding a second head sheave, a fixed pulley and a second movable pulley in turn; and the second movable pulley is connected with the hydraulic cylinder. Due to the counterweight block of the counterweight balancing vertical hydraulic pumping unit, the hydraulic cylinder only needs to overcome the weight difference between the load on the hanging point and the counterweight block of the pumping unit, therefore pressure of the hydraulic cylinder is reduced.

Description

Counterweigh vertical hydraulic oil pumper
Technical field
The present invention relates to a kind of oil exploration equipment, especially relate to a kind of counterweigh vertical hydraulic oil pumper.
Background technology
Oil pumper is the indispensable mechanized equipment of oil field oil recovery.During its work: at up stroke, because of sucker rod upwards spurs plunger, travelling valve on the plunger is subjected to the pressure of fluid column in the oil pipe and cuts out, standing valve thereon, the effect of downforce difference down and open, at this moment, the load of bearing on the oil pumper suspension point is mainly rod string weight and the above fluid column weight sum of plunger.At down stroke, rod string drives plunger and moves downward, and standing valve cuts out earlier, and secondly travelling valve is opened, and act on the above liquid gravity of plunger originally and transfer on the standing valve, so the load of bearing on the oil pumper suspension point mainly is rod string weight.
The kind of oil pumper is a lot, and form of structure is various, the part of having nothing in common with each other.Now mainly be divided into beam pumping unit and vertical oil-pumping machine.Characteristics such as beam pumping unit is durable in use owing to it, part is reliable, easy to maintenance have obtained using widely in the oil field.But in long-term use, also expose some problems, big as installed power, energy consumption is high, efficient is low, running stability difference etc.; And its bulky, complex structure will use the big retarding device, and the processing cycle is long.
In recent years, along with the demand of oil field to the oil pumper of long stroke, low jig frequency, people have used hydraulic technique on oil pumper, multiple vertical hydraulic oil pumper occurred.These vertical hydraulic oil pumpers are improving the operational factor of oil pumper, there has been certain progress the efficient, the energy-conservation aspect that improve oil pumper, but up stroke polished rod load when normally directly overcoming oil pumper work with hydraulic cylinder owing to it, drive with rod string weight again and carry out down stroke, so just require hydraulic cylinder to produce very big to push away, pulling force, therefore it exists the system pressure of hydraulic system excessive, big, the invalid working application time of power of motor consumption is long, and shortcomings such as height, running cost height self consume energy.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of hydraulic system pressure little counterweigh vertical hydraulic oil pumper, it is simple in structure, compliance is strong, less energy consumption.
In order to reach above-mentioned technical purpose, the present invention by the following technical solutions:
A kind of counterweigh vertical hydraulic oil pumper, comprise frame, hydraulic cylinder, polished rod eye, described polished rod eye is connected with first connector, described first connector is walked around first movable pulley of establishing in first head sheave of described frame top and the described frame and is connected in described frame, described hydraulic cylinder is connected in described first movable pulley and transmits thrust or pulling force by first connector, wherein said frame is hanged by connector with respect to a side of polished rod eye balancing weight, described connector is walked around second head sheave successively, fixed pulley, second movable pulley is connected in described frame, and described second movable pulley is connected with hydraulic cylinder.
Above-mentioned counterweigh vertical hydraulic oil pumper, wherein said first pulley and second pulley are positioned on the same axis.
This first movable pulley and second movable pulley can be located on the same horizontal axis, form running block.
Above-mentioned counterweigh vertical hydraulic oil pumper, wherein said hydraulic cylinder can be in single-action hydraulic cylinder, double acting hydraulic cylinder or the plunger-type cylinder any one.
Above-mentioned counterweigh vertical hydraulic oil pumper, the both sides of wherein said frame are provided with small rack, the small rack of described polished rod eye homonymy to frame side to or the top extend, described connector is walked around described small rack.
Above-mentioned counterweigh vertical hydraulic oil pumper, wherein said connector is selected from wire rope, iron chains, chain, leaf chain or belt.
Above-mentioned counterweigh vertical hydraulic oil pumper, wherein said frame comprises stand and the base that is provided with connecting rod each other.
Owing to adopted said structure, the present invention has the following advantages compared to existing technology:
1, counterweigh vertical hydraulic oil pumper of the present invention, owing to be provided with balancing weight, hydraulic cylinder only need overcome weight poor of polished rod load and balancing weight, effectively reduces hydraulic system working pressure, has reduced the loss of oil pumper.
2, counterweigh vertical hydraulic oil pumper of the present invention because up and down correspondence is provided with hydraulic cylinder, makes sucker rod in stroke up and down, can regulate the thrust or the pulling force of hydraulic cylinder up and down better, so that adapt to different situations.
3, counterweigh vertical hydraulic oil pumper of the present invention because running block can be installed on the same axle, has improved the equipment reliability of operation.
Description of drawings
Fig. 1 is the structural representation of counterweigh vertical hydraulic oil pumper of the present invention.
The drawing reference numeral explanation
1 Hydraulic Station, 2 connecting rods, 3 oil pipes, 4 oil pipes
5 frames, 6 sucker rods, 7 hydraulic cylinders, 8 balancing weights
9 fixed pulleys, 10 polished rod eyes, 11 second wire rope, 12 first wire rope
13 second movable pulley, 14 first movable pulley, 15 small racks, 16 small racks
17 second head sheaves, 18 first head sheaves, 19 hydraulic cylinders
The specific embodiment
Below, the present invention is described further to reach embodiment in conjunction with the accompanying drawings:
As shown in Figure 1, counterweigh vertical hydraulic oil pumper of the present invention comprises frame 5, described frame 5 comprise base, on this base stand is installed, be connected with connecting rod 2 between this base and the stand, be provided with Hydraulic Station 1 in this base, be provided with motor and hydraulic fluid tank in this stand bottom, this motor provides power for hydraulic fluid tank, this hydraulic fluid tank is connected with Hydraulic Station 1, the inside of this frame 5 is provided with the running block that two movable pulley that are arranged in same horizontal axis form, and (Fig. 1 is for the ease of observing with two movable pulley separately, reality is overlapping), these two movable pulley are fixed on the same fixed mount, and first wire rope, 12 1 ends are fixed in the inwall of this frame 5, and the other end is walked around first movable pulley 14 successively, first head sheave 18, and walk around the small rack 16 in frame 5 left sides and the truckle on the small rack 16, fall in the left side of this frame 5, the bottom of this first wire rope 12 is connected with polished rod eye 10 in turn, sucker rod 6, the bottom of this sucker rod is connected with oil well pump; The below of this running block, be fixed with fixed pulley 9 on the inwall of frame 5, second wire rope, 11 1 ends are fixed in the interior installed surface of frame 5, the other end is walked around second movable pulley 13, fixed pulley 9, second head sheave 17 successively, and walk around the small rack 15 on frame 5 right sides and the truckle of small rack 15, fall in the right side of this frame 5, the bottom of this second wire rope 11 is connected with balancing weight 8.The top of the fixed mount of this first movable pulley 14 is provided with a hydraulic cylinder 19, and bar is fixed in the fixed mount upper surface of this first movable pulley 14 in it; The bottom of the fixed mount of second movable pulley 13 is provided with a hydraulic cylinder 7, and bar is fixed in the fixed mount soffit of this second movable pulley 13 in this; This hydraulic fluid tank is provided with two oil pipes 3,4, oil pipe 3 be connected in hydraulic cylinder 19 and with the hydraulic cylinder internal communication, oil pipe 4 be connected in hydraulic cylinder 7 and with the hydraulic cylinder internal communication.
The present invention of said structure is when work, when up stroke, motor is started working, hydraulic oil in the hydraulic fluid tank enters hydraulic cylinder 19 through oil pipe 3, hydraulic cylinder 19 is under the promotion of hydraulic oil, interior bar is released downwards, promotes first movable pulley 14 and second movable pulley 13 is descending, and the interior bar that promotes hydraulic cylinder 7 is bounced back to downwards in the sleeve of hydraulic cylinder 7.First movable pulley 14 is descending, first wire rope, 12 movable ends that are around in first movable pulley 14 move down, it is up that pulling force changes direction drive sucker rod through first head sheave 18, second movable pulley 13 is descending, second wire rope, 11 movable ends that are around in second movable pulley 13 move down, thrust changes direction through fixed pulley 9, changes direction through second head sheave, 17 secondaries again, and it is descending to promote balancing weight 8.In this process, hydraulic cylinder 19 needs to produce weight poor that thrusts overcome the polished rod load of oil pumper up stroke and balancing weight.
During down stroke, motor is started working, and the hydraulic oil in the hydraulic fluid tank enters hydraulic cylinder 7 through oil pipe 4, hydraulic cylinder 7 is under the promotion of hydraulic oil, interior bar is upwards released, and promotes first movable pulley 14 with second movable pulley 13 is up, and the interior bar of promotion hydraulic cylinder 19 is upwards bounced back in the sleeve of hydraulic cylinder 19.First movable pulley 14 is up, first wire rope, 12 movable ends that are around in first movable pulley 14 move up, it is descending that thrust changes direction drive sucker rod through first head sheave 18, second movable pulley 13 is up, second wire rope, 11 movable ends that are around in second movable pulley 13 move up, pulling force changes direction through fixed pulley 9, changes direction through second head sheave, 17 secondaries again, and it is up to promote balancing weight 8.In this process, hydraulic cylinder 7 needs to produce weight poor that thrusts overcome the polished rod load of oil pumper down stroke and balancing weight.
The counterweigh vertical hydraulic oil pumper hydraulic cylinder of said structure only need produce the pressure of difference of the weight of polished rod load and balancing weight, has reduced the pressure of hydraulic cylinder, has reduced the energy consumption of oil pumper, the application life of having improved oil pumper.Only used less movable pulley and fixed pulley just to finish distribution in the frame to the power of sucker rod and balancing weight, simple in structure, easy to use; Certainly also can increase assembly pulley according to actual needs.The counterweigh vertical hydraulic oil pumper of said structure is fixed on two movable pulley on the same horizontal axis, and hydraulic cylinder can promote two movable pulley upstream or downstream simultaneously, has simplified the structure of frame inside, makes the equipment assembling easier.
The counterweigh vertical hydraulic oil pumper of said structure both can use single-action hydraulic cylinder or plunger-type cylinder, certainly, also can use double acting hydraulic cylinder.When using double acting hydraulic cylinder, oil pumper is when up stroke, and the hydraulic cylinder of top produces thrust downwards, and the hydraulic cylinder of below produces downward pulling force, makes sucker rod up, and balancing weight is descending; During down stroke, the hydraulic cylinder of below produces thrust upwards, and the hydraulic cylinder of top produces pulling force upwards, makes sucker rod descending, and balancing weight is up, and effect is better.Certainly, also can use a plurality of hydraulic cylinders at upper and lower.
The connector that the counterweigh vertical hydraulic oil pumper of said structure uses is wire rope, can certainly use iron chains, chain, leaf chain or belt.

Claims (7)

1. counterweigh vertical hydraulic oil pumper, comprise frame, hydraulic cylinder, polished rod eye, described polished rod eye is connected with first connector, described first connector is walked around first movable pulley of establishing in first head sheave of described frame top and the described frame and is connected in described frame, described hydraulic cylinder is connected in described first movable pulley and transmits thrust or pulling force by first connector, it is characterized in that: described frame is hanged by connector with respect to polished rod eye one side balancing weight, described connector is walked around second head sheave successively, fixed pulley, second movable pulley is connected in described frame, and described second movable pulley is connected with hydraulic cylinder.
2. counterweigh vertical hydraulic oil pumper according to claim 1 is characterized in that: described first pulley and second pulley are positioned on the same axis.
3. counterweigh vertical hydraulic oil pumper according to claim 2 is characterized in that: described first movable pulley and second movable pulley are located on the same horizontal axis, form running block.
4. counterweigh vertical hydraulic oil pumper according to claim 1 is characterized in that: described hydraulic cylinder is single-action hydraulic cylinder, double acting hydraulic cylinder or plunger-type cylinder.
5. counterweigh vertical hydraulic oil pumper according to claim 1, it is characterized in that: the both sides of described frame are provided with small rack, the small rack of described polished rod eye homonymy to frame side to or the top extend, described first, second connector is walked around described small rack.
6. counterweigh vertical hydraulic oil pumper according to claim 1, it is characterized in that: described connector is selected from wire rope, iron chains, chain, leaf chain or belt.
7. counterweigh vertical hydraulic oil pumper according to claim 1, it is characterized in that: described frame comprises stand and base, is connected with connecting rod between described stand and the base.
CN201010296197XA 2010-09-29 2010-09-29 Counterweight balancing vertical hydraulic pumping unit Pending CN101949279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010296197XA CN101949279A (en) 2010-09-29 2010-09-29 Counterweight balancing vertical hydraulic pumping unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010296197XA CN101949279A (en) 2010-09-29 2010-09-29 Counterweight balancing vertical hydraulic pumping unit

Publications (1)

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CN101949279A true CN101949279A (en) 2011-01-19

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103063464A (en) * 2013-01-05 2013-04-24 无锡市科优液压设备制造有限公司 Test bed for hydraulic oil pumping device
CN104895532A (en) * 2015-05-06 2015-09-09 胜利油田新大管业科技发展有限责任公司 Chain transmission reversing and short support double long-stroke oil pumping machine and using method thereof
CN105464632A (en) * 2016-01-05 2016-04-06 靳宝才 Gravity balance difference pumping unit
CN110924902A (en) * 2019-12-12 2020-03-27 中国石油化工股份有限公司 Gear suspension gear drive load balance type oil pumping machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683424A (en) * 1953-03-05 1954-07-13 Kane David Counterbalanced well pumping apparatus
US4665761A (en) * 1985-03-19 1987-05-19 North China Petroleum Machinery Repairing Plant Long stroke pumping unit
CN101538998A (en) * 2008-03-21 2009-09-23 宋志亮 Improved automatic control hydraulic drive oil pumping machine
CN101638980A (en) * 2008-07-30 2010-02-03 徐洪德 Full-balance hydraulic transmission oil sucking machine
CN101787869A (en) * 2009-01-23 2010-07-28 徐洪德 Double-cylinder symmetrical type fully balanced hydraulic oil pumping unit
CN202152669U (en) * 2011-06-30 2012-02-29 中国石油天然气集团公司 Direct-drive drum full-balanced pumping unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683424A (en) * 1953-03-05 1954-07-13 Kane David Counterbalanced well pumping apparatus
US4665761A (en) * 1985-03-19 1987-05-19 North China Petroleum Machinery Repairing Plant Long stroke pumping unit
CN101538998A (en) * 2008-03-21 2009-09-23 宋志亮 Improved automatic control hydraulic drive oil pumping machine
CN101638980A (en) * 2008-07-30 2010-02-03 徐洪德 Full-balance hydraulic transmission oil sucking machine
CN101787869A (en) * 2009-01-23 2010-07-28 徐洪德 Double-cylinder symmetrical type fully balanced hydraulic oil pumping unit
CN202152669U (en) * 2011-06-30 2012-02-29 中国石油天然气集团公司 Direct-drive drum full-balanced pumping unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103063464A (en) * 2013-01-05 2013-04-24 无锡市科优液压设备制造有限公司 Test bed for hydraulic oil pumping device
CN104895532A (en) * 2015-05-06 2015-09-09 胜利油田新大管业科技发展有限责任公司 Chain transmission reversing and short support double long-stroke oil pumping machine and using method thereof
CN105464632A (en) * 2016-01-05 2016-04-06 靳宝才 Gravity balance difference pumping unit
CN105464632B (en) * 2016-01-05 2017-11-28 靳宝才 Gravitational equilibrium difference oil pumper
CN110924902A (en) * 2019-12-12 2020-03-27 中国石油化工股份有限公司 Gear suspension gear drive load balance type oil pumping machine

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Application publication date: 20110119