CN1063332A - Differential balancing lever oil-pumping machine of same well - Google Patents
Differential balancing lever oil-pumping machine of same well Download PDFInfo
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- CN1063332A CN1063332A CN 91100302 CN91100302A CN1063332A CN 1063332 A CN1063332 A CN 1063332A CN 91100302 CN91100302 CN 91100302 CN 91100302 A CN91100302 A CN 91100302A CN 1063332 A CN1063332 A CN 1063332A
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Abstract
A kind of novel lever oil pumping machine.Major technique is characterised in that: the one-level bascule has adopted the same well differential balance mechanism that has adjusting device, and this mechanism's one end is connected with the light pipe on oil pick-up tube top, and the other end is connected with polished rod or its synchronous points on sucker rod top.Major advantage is: machine weight is light, and it is long that pump is taken out stroke, the comprehensive benefit height.
Description
The present invention relates to the lever oil pumping machine of oilfield.
Existing lever oil pumping machine, the one-level balance all adopts crank balance, beam balance, suspending weight balance, air-balance or their combined balance system, the common drawback of these balances is to cause the oil pumper heaviness, and pump to take out stroke less.
Symmetric oil-pumping machine patent application (application number 89 1 06520.2), stated a kind of with well differential balance device, utilize the mutual balance of oil pick-up tube and sucker rod and constitute the one-level balance of oil pumper, have and alleviate oil pumper weight and increase the advantage that the oil pumping pump is taken out stroke, but lack governing loop, can not the adjustment amplitude, can only be used for a kind of degree of depth and a kind of pump directly recovers the oil.
Task of the present invention provides the novel lever oil pumping machine of a kind of oil pick-up tube and the mutual balance of sucker rod, and it not only alleviates oil pumper weight significantly, increases the oil pumping pump and takes out stroke, and can be used for the well recovery of the various degree of depth.
This invention task is to be realized by the technical scheme of differential balancing lever oil-pumping machine of same well.The same with existing lever oil pumping machine, differential balancing lever oil-pumping machine of same well comprises power set, deceleration device, movement converter, support, base, one-level bascule and secondary bascule, it is characterized in that: the one-level bascule is the same well differential balance mechanism that has adjusting device, one end of this mechanism is connected with light pipe 2, and the other end of this mechanism is connected with polished rod 1 or its synchronous points A.
Differential balancing lever oil-pumping machine of same well has the well mouth of oil well structure that adapts to it, mainly be to have set up a smooth oil pick-up tube-light pipe 2 that in adopting tree 3, slides, the top of this light pipe 2 be connected with the well differential balance mechanism, the bottom connects oil pick-up tube, the connection sucker rod that just looks like polished rod 1 is the same.Production tree 3 is drums at the bottom of the leakage of a band edge, the casing head 4 fixing and sealings of its barrel rim and well head, and its bucket end and 2 sliding joining and excellent sealings of light pipe,, its bung and light pipe 2 or polished rod 1 are slided and are joined and excellent sealing all arranged.Light pipe 2 upper ends have passage K and are communicated with production tree 3 all the time.Like this, the crude oil in the oil pick-up tube constantly transfers out via light pipe 2 suction production trees 3 on the one hand, and on the other hand, the weight of oil pick-up tube acts on being sent to polished rod 1 or its synchronous points A on the well differential balance mechanism by light pipe 2, constitutes the one-level balance of oil pumper.
Differential balancing lever oil-pumping machine of same well also has the rod connector device that adapts to it and takes out pipe joint arrangement.The rod connector device adopts the rod collar of band roller, can make sucker rod borrow roller to rely on the oil pick-up tube inwall, has only rolling friction in the relative motion; The oil pick-up tube piecing devices adopt the oil pick-up tube box cupling of band roller equally, oil pick-up tube is borrowed on the inwall that roller relies on oil well casing, also have only rolling friction in the relative motion, thereby can greatly reduce in the oil pumping process between the sucker rod and oil pick-up tube and the frictional dissipation between oil pick-up tube and the oil well casing.
The said differential balance mechanism that has adjusting device in the differential balancing lever oil-pumping machine of same well can adopt multiple scheme implementations such as parallel-crank mechanism beam, hinge leverage, bearing lifting cylinder hydraulic lever mechanism, bearing lifting hydraulic piston rod leverage, concentric type hydraulic lever mechanism; Polished rod synchronous points device also can adopt multiple schemes such as walking beam-horse head device, parallel-crank mechanism beam; Adjusting device mainly adopts various counterweight balance weights, also can adopt polished rod synchronous points changing device or the like, in the drawings and Examples detailed description will be arranged.
Compare with existing lever oil pumping machine, differential balancing lever oil-pumping machine of same well mainly contains following advantage:
(a) oil pumper weight can alleviate 30～70%,
(b) pump is taken out stroke and can be increased 50～100%,
(c) oil well of the various degree of depth all can adopt low jig frequency, long stroke mode to pump, and this makes that the polished rod acceleration is little, the life-span is long; Good balance effect, energy-conservation; The pump inhalation rate is good, the overall efficiency height.
Accompanying drawing and symbol description:
Fig. 1 is the structural representation of embodiment one.
Fig. 2 is the structural representation of embodiment two.
Fig. 3 is the structural representation of embodiment three.
Fig. 4 is the structural representation of embodiment four.
Fig. 5 is the structural representation of embodiment five.
Fig. 6 is the structural representation of embodiment six.
Fig. 7 is the structural representation of embodiment seven.
Among the figure:
The 1-polished rod, 2-light pipe, 3-production tree, the 4-casing head, 5-wire rope, 6-horse head, the 7-walking beam, 8-support, 9-base, the 10-main crank, 11-master connecting-rod, 12-take-up housing, the 13-screw rod, 14-polished rod synchronous points bearing support slide block, 15-phase modulation 2 ω crank balance mechanisms, 16-2 ω wheel, 17-chain or synchronous band, 18-ω wheel, the 19-bearing, 20-bearing axle, 21-front support rod, the 22-front-axle beam, 23-back stay, the 24-back rest, the 25-roller, 26-track base, 27-connecting rod, 28-main crank negative balance piece, 29-connecting rod cutting ferrule counterweight, 30-lever support, the 31-lever shaft, 32-lever, the two hinges of 33-back push rod, push rod before the two hinges of 34-, 35-roller, 36-left rail seat, the right track base of 37-, 38-lever balance hammer, the 39-lever is regulated counterweight, 40-lifting piston rod, 41-lifting piston, 42-bearing lifting cylinder, 40 '-bearing lifting piston rod, 41 '-bearing lifting piston, 42 '-the lifting cylinder, the 43-spherical bearing, the 44-compensating cylinder, the 45-dummy piston is put counterweight on the 46-polished rod synchronous points, 47-lifting cylinder pressure chamber, 48-compensating cylinder pressure chamber, 49-communicating pipe, 50-liquid pump, 51-liquid valve, another location status of 52-liquid valve 51,53-liquid valve passage first, 54-liquid valve passage second, the last liquid pipe of 55-, liquid pipe under the 56-, 57-left side liquid pipe, the right liquid pipe of 58-, the 59-hanger bearing, the 60-equalizer, the opposed dummy piston of 61-, the opposed dummy piston bar of 62-, the opposed compensating cylinder of 63-, the 64-girder, 65-auxiliary girder, 66-curb girder, the 67-underbeam, 68-lifting cylinder counterweight, 69-equalizer counterweight, the opposed lifting piston of 70-, the opposed lifting piston rod of 71-, the opposed lifting cylinder of 72-, 73-top board, 74-lifting crossbeam, 75-lifting crossbeam ball hole, 76-polished rod bulb, 77-lifting crossbeam counterweight, 78-plate-like support, the 79-sealing shroud, 80-center lifting piston, 81-center lifting cylinder, 82-light pipe counterweight, the 0-top-supported, 0
1-speed reducer output shaft.0
2-2 ω axles, A-polished rod synchronous points, the ball pivot point on A ' polished rod 1, the transverse axis on the B-light pipe 2, the straight moving point on the C-parallel-crank mechanism beam, the passage that K-light pipe 2 upper ends are communicated with production tree 3, the fluid infusion hole of F-compensating cylinder bottom.
The embodiment explanation:
Embodiment one.Referring to Fig. 1, this is that a kind of mechanism beam type is with well differential balance beam-pumping unit.Its basic structure is identical with the two-stage balanced phase-regulating back-crank pumping unit, promptly by an engine by belt driver drive speed reducer (not drawing among the figure), make the output shaft 0 of reductor
1Be with main crank 10 to rotate with angular velocity omega, and the four hinge crank-rocker mechanisms of forming by movement converter-main crank 10, master connecting-rod 11, walking beam 7 and support 8, order about the top-supported 0 of walking beam 7 on support 8 upper and lower waving in vertical guide, thereby just polished rod 1 by wire rope 5 tractions be L as stroke to the horse head 6 that is contained in walking beam 7 terminations
1Pump.With output shaft 0
1Fixed wheel 18 together rotates with angular velocity omega with main crank 10, is called the ω wheel, and it is by chain or be with 17 to order about 2 ω wheel 16 with angular velocity 2 ω rotation synchronously, the 2 ω axles 0 that are connected with 2 ω wheel
2On phase modulation 2 ω crank balance mechanisms 15 are housed, it is the secondary bascule of oil pumper.
This oil pumper is characterised in that, the one-level balance is realized by the same well differential balance mechanism-parallel-crank mechanism beam that has adjusting device, concrete structure is: it is a parallelogram motion chain that front-axle beam 22, the back rest 24, back stay 23 and front support rod 21 are movably hinged successively, and the pin joint place with front support rod 21 is movably hinged with bearing 19 simultaneously at back stay 23, also can adopt the live schemes of hinge of certain point and bearing 19 on certain point on the front support rod 21 or the back stay 23, bearing 19 is fixed on the base 9.Two straight moving points are arranged on this mechanism's beam, and one is the straight moving point on the front-axle beam 22, and front-axle beam 22 is movably hinged by transverse axis B with light pipe 2 at this directly moving some place; Another is the straight moving some C on the back rest 24, the back rest 24 lives in cutting with scissors at the C place simultaneously roller 25 and connecting rod 27, be fixed with track base 26 on the base 9 again, roller 25 is joined with the vertical track cunning of track base 26 and is limited in wherein rolling, and the other end of connecting rod 27 and walking beam 7 are lived at an A place and cut with scissors.Because with the some A and the polished rod 1 synchronous upper and lower motion of horse head homonymy, be called the polished rod synchronous points on the walking beam 7; That is to say, adopted walking beam-horse head device to realize polished rod synchronous points A, embodiment two to four adopts this synchronous points device.
Like this, act on the downward oil pick-up tube gravity on the light pipe 2, be delivered to polished rod synchronous points A place, change acting on upward balancing each other on the walking beam 7 into to thrust and sucker rod gravity by parallel-crank mechanism beam (21,22,23,24) and connecting rod 27.
Employing parallel-crank mechanism beam is that the same well differential balance beam-pumping unit of one-level bascule not only has lightweight advantage, pump is taken out stroke and also obviously increased: when horse head 6 is being with polished rod 1 up by wire rope 5, polished rod synchronous points A will make light pipe 2 descending by connecting rod 27, parallel-crank mechanism beam (21,22,23,24); Otherwise when polished rod 1 was descending, light pipe 2 was forced to up, and therefore, pump is taken out stroke L and be should be stroke of polished rod L
1With light pipe stroke L
2Sum, note Q
1-sucker rod quality, Q
1'-polished rod additional mass, Q
2-oil pick-up tube quality, Q
2'-light pipe additional mass, Q
3-one puies forward the quality of oil, has under the provable optimum balance state:
L＝[1+（Q
1+Q
1′+0.5Q
3）÷（Q
2+Q
2′+0.5Q
3）]L
1
As Q
2+ Q
2'=Q
1+ Q
1', L=2L is arranged
1, this that is to say that pump is taken out stroke and will be twice because of differential the increasing than stroke of polished rod of light pipe, makes Q
2' get negative value, this will be fully possible.
Adjusting device has three kinds of design schemes:
(a) main consideration increase pump is taken out stroke.At this moment should get positive Q
1' and negative Q
2', be exactly this situation as main crank negative balance piece 28 among Fig. 1 and the connecting rod cutting ferrule counterweight 29 on the connecting rod 27.
(b) main consideration alleviates oil pumper weight.At this moment should adopt the scheme of regulating polished rod synchronous points A position.Concrete structure is: the fixed take-up housing 12 that has polished rod synchronous points bearing support slide block 14 on the walking beam 7, slide block 14 are lived at A point with connecting rod 27 and are cut with scissors, and are shaped on screw and screw rod 13 screws, and screw rod 13 is assemblied in again on the take-up housing 12.Rotary screw 13, slide block 14 move in take-up housing 12, with regard to modulation the position of polished rod synchronous points A, just modulation the size of the one-level balance that produces of oil pick-up tube gravity.
(c) increasing pump takes out stroke and alleviates the scheme that oil pumper weight is taken into account.Can adopt less main crank negative balance piece 28 and connecting rod cutting ferrule counterweight 29, screw rod-slide block (13-14) mechanism that regulates polished rod synchronous points A position is set simultaneously.
Embodiment two.Referring to Fig. 2, this be a kind of lever with well differential balance beam-pumping unit, the difference of it and embodiment one is that the same well differential balance mechanism that has adjusting device has adopted a kind of hinge leverage.Concrete structure is: fixed lever support 30 on the oil pumping unit base 9 has a lever 32 that is movably hinged with it and can swings around lever shaft 31 in vertical guide.The front end of this lever is by the preceding push rod 34 of the hinged two hinges of two ends, be movably hinged at its transverse axis B place with light pipe 2, the hinge of also living on the transverse axis B of light pipe 2 has roller 35, simultaneously on the production tree 3 or be consolidated with left rail seat 36 and right track base 37 on the well head ground, guide rail cunning between the roller 35 and 36,37 is joined and is rolled therein, guarantees that light pipe 2 is for vertical movement.Live at polished rod synchronous points A place with walking beam 7 by pair hinge back push rod 33 and cut with scissors in the rear end of this lever.Like this, make the downward gravity of oil pick-up tube move both vertically, pass to polished rod synchronous points A place, upward balance each other with the gravity of sucker rod to thrust with regard to becoming by push rod 34, lever 32, two hinge back push rod 33 before light pipe 2, the two hinge.
Also have lever balance hammer 38 and lever on the lever 32 and regulate counterweight 39, they constitute the light pipe additional mass jointly.
Embodiment three.Referring to Fig. 3, this is that a kind of bearing lifting cylinder hydraulic lever formula is with well differential balance beam-pumping unit, it and embodiment one, two are relatively, difference is that the same well differential balance mechanism that has adjusting device has adopted bearing lifting cylinder hydraulic lever mechanism: have one to pass through the bearing lifting cylinder 42 of self-aligning spherical support 43 movable ball pivots with base 9, be fixed with lifting piston rod 40 on the lifting piston 41 of Hua Donging therein, the overhanging end of this piston rod 40 and walking beam 7 are lived at polished rod synchronous points A place and are cut with scissors.Have one to be fixed on the production tree 3 or the ground compensating cylinder 44 of well head again, its dummy piston 45 and light pipe 2 are connected as a single entity.With communicating pipe 49, lifting cylinder pressure chamber 47 with lifting piston 41 bottoms, be interconnected with the compensating cylinder pressure chamber 48 of dummy piston 45 bottoms, just formed bearing lifting cylinder hydraulic lever mechanism, the downward gravity of oil pick-up tube is converted into the lifting piston rod by this hydraulic lever mechanism and acts on going up to thrust of polished rod synchronous points A, plays the one-level balanced action.
The adjusting device of bearing lifting cylinder hydraulic lever mechanism has adopted on the polished rod synchronous points puts counterweight, and promptly the walking beam wing plate above the polished rod synchronous points A is provided with one group of counterweight 46.
One aperture F is arranged at compensating cylinder 44 bottoms, is used for regular replenishment fluid.
Bearing lifting cylinder 42 also can be fixed with base 9, and at this moment polished rod synchronous points device will be used embodiment five said parallel-crank mechanism beams instead.
Embodiment four.Referring to Fig. 4, this be a kind of bearing lifting hydraulic piston rod lever with well differential balance beam-pumping unit, it and embodiment three relatively mainly contains 2 differences:
(a) bearing lifting piston rod 40 ' by self-aligning spherical support 43 and base 9 hinge of living, lifting cylinder 42 ' hang by the feet on walking beam 7 in polished rod synchronous points A place work hinge by hanger bearing 59 and walking beam 7, therefore, lifting cylinder pressure chamber 47 bearing lifting piston 41 ' top.Here, adjusting device still adopts and puts counterweight 46 on the polished rod synchronous points.
(b) between lifting cylinder pressure chamber 47 and the compensating cylinder pressure chamber 48, be interconnected by liquid pipe serial connection liquid pump 50 and a two-position four-way liquid valve 51, the arrow V in the liquid pump 50 represents the direction that liquid stream hydraulic pressure is carried when engine drives liquid pump.When liquid valve 51 as shown during the position, the liquid flow path direction is:
Lifting cylinder pressure chamber 47-go up liquid pipe 55-liquid valve passage first 53-left side liquid pipe 57-through liquid pump 50 boost-right liquid pipe 58-liquid valve passage second 54-under liquid pipe 56-compensating cylinder pressure chamber 48 at this moment, sucker rod gravity forces lifting cylinder 42 ' decline by polished rod synchronous points A, in lifting cylinder pressure chamber 47, form certain pressure, boost by liquid pump 50 then, flow to compensating cylinder pressure chamber 48, light pipe 2 is upwards lifted together with oil pick-up tube by dummy piston 45.When polished rod 1 decline and light pipe 2 rising arrival final positions, travel switch (not drawing among the figure) makes liquid valve 51 forward state 52 to, and the liquid flow path direction becomes:
Under the compensating cylinder pressure chamber 48-liquid pipe 56-liquid valve passage second 54-left side liquid pipe 57-through liquid pump 50 boost-at this moment right liquid pipe 58-liquid valve passage first 53-go up liquid pipe 55-lifting cylinder pressure chamber 47, oil pick-up tube gravity forms certain pressure by light pipe 2 and dummy piston 45 in compensating cylinder pressure chamber 48, after liquid pump 50 pressurizations, flow to lifting cylinder pressure chamber 47, by lifting cylinder 42 ' act on the polished rod synchronous points A, polished rod 1 is upwards lifted together with sucker rod.When polished rod 1 rises and light pipe 2 decline arrival final positions, make the liquid valve be returned to location status shown in the diagram 51 by travel switch again, begin the stroke that polished rod 1 descends and light pipe 2 rises heavily again.
Embodiment five to seven said differential balancing lever oil-pumping machine of same well all should adopt this engine to drive liquid pump, and are changed the type of drive of the direction of motion by travel switch control liquid valve.
Embodiment five.Referring to Fig. 5, this be a kind of bearing hydraulic piston rod lever with well differential balance Symmetric oil-pumping machine, it and embodiment four relatively has 4 differences:
(a) bearing piston rod 40 ' fixed with base 9, lifting cylinder 42 ' moving linearly.
(b) polished rod synchronous points device has adopted the parallel-crank mechanism beam: by the girder 64 of top support 0 with support 8 hinges alive, cutting with scissors with auxiliary girder 65, underbeam 67, curb girder 66 work successively is a two degrees of freedom parallel-crank mechanism, auxiliary girder 65 is located and polished rod 1 ball pivot at an A ', and polished rod synchronous points A is arranged on the underbeam 67 intersection with line OA '.Underbeam 67 is at polished rod synchronous points A place and lifting cylinder 42 ' be movably hinged by hanger bearing 59, because polished rod synchronous points A is with lifting cylinder 42 ' move both vertically, auxiliary girder 65 also moves both vertically with the ball pivot center A ' of polished rod 1.
(c) adopted two opposed compensating cylinders 63 that are fixed on well head, its two opposed dummy piston bars 62, respectively with equalizer 60 ball pivots, and equalizer 60 in the central with light pipe 2 on transverse axis B be movably hinged.
(d) adjusting device adopted be enclosed within lifting cylinder 42 ' on lifting cylinder counterweight 68 or (with) place the equalizer counterweight 69 on the equalizer 60.
Embodiment six.Referring to Fig. 6, this is the concentric hydraulic lever formula of an a kind of twin-tub differential balancing lever oil-pumping machine of same well, the difference of it and embodiment five is: cancellation polished rod synchronous points mechanism, adopt two opposed lifting cylinders 72 that are fixed on well head, opposed lifting piston rod 71 of its two and lifting crossbeam 74 ball pivots, 74 on lifting crossbeam point place therein has ball hole 75, matches with the polished rod bulb 76 of polished rod 1, is called unidirectional ball pivot.Because lifting cylinder and compensating cylinder have all adopted the twin-tub symmetric arrangement, and be the concentric structure of lifting crossbeam 74 and equalizer 60, be called twin-tub concentric type hydraulic lever mechanism.
The adjusting device of twin-tub concentric type hydraulic lever mechanism has adopted equalizer counterweight 69 and the lifting crossbeam counterweight 77 that places on the lifting crossbeam 74.
Twin-tub concentric type hydraulic lever mechanism can place the tubbiness basement of well head, has only production tree 3 and lifting crossbeam 74 to expose on the ground.Its frame is a plate-like support 78, and structure is very simple.
Embodiment seven.Referring to Fig. 7, this is the concentric hydraulic lever formula of an a kind of single cylinder differential balancing lever oil-pumping machine of same well, it and embodiment six compare, and characteristics are that compensating cylinder has all adopted the single cylinder structure with the lifting cylinder: the structure of single compensating cylinder 44 and dummy piston 45 thereof is identical with embodiment three, four; Single lifting cylinder-81 in center lifting cylinder tips upside down on the well head, and its center lifting piston 80 is lived hinge together with polished rod 1.Adjusting device has adopted the light pipe counterweight 82 that is enclosed within on the light pipe 2.
Claims (8)
1, differential balancing lever oil-pumping machine of same well, comprise power set, deceleration device, movement converter, support, base, one-level bascule and secondary bascule, it is characterized in that: the one-level bascule is the same well differential balance mechanism that has adjusting device, one end of this mechanism is connected with the light pipe 2 on oil pick-up tube top, and the other end is connected with the polished rod 1 or the polished rod synchronous points A on sucker rod top.
2, differential balancing lever oil-pumping machine of same well according to claim 1, it is characterized in that: to advance differential balance mechanism be a kind of parallel-crank mechanism beam to described have an adjusting device same, it is by front-axle beam 22, the back rest 24, back stay 23 and front support rod 21 live successively hinge for parallelogram motion chain and front support rod 21 or/and back stay 23 is movably hinged formation with bearing 19 again, the front-axle beam 22 of this mechanism's beam is lived by transverse axis B with light pipe 2 at its directly moving place and is cut with scissors, the back rest 24 of this mechanism's beam lives in cutting with scissors at its directly moving some C place simultaneously roller 25 and connecting rod 27, roller 25 is slippery with the vertical track that is fixed on the track base 26 on the base, the other end of connecting rod 27 and polished rod synchronous points A live and cut with scissors, and are furnished with connecting rod cutting ferrule counterweight 29 on the connecting rod 27.
3, differential balancing lever oil-pumping machine of same well according to claim 1, it is characterized in that: the described same well differential balance mechanism that has adjusting device is a kind of hinge leverage, concrete structure is: a lever 32 of living and cutting with scissors with lever support 30 is arranged, the front end of this lever is connected by transverse axis B with light pipe 2 by the preceding push rod 34 of two hinges, the hinge of also living on the transverse axis B of light pipe 2 has roller 35, it and a left side, right track base 36, track cunning in the middle of 37 is joined, the rear end of this lever is passed through two hinges back push rods 33 and is connected with polished rod synchronous points A, and also has lever balance hammer 38 and lever adjusting counterweight 39 on the lever 32.
4, differential balancing lever oil-pumping machine of same well according to claim 1, it is characterized in that: the described same well differential balance mechanism that has adjusting device is an a kind of bearing lifting cylinder hydraulic lever mechanism, concrete structure is: the bearing lifting cylinder 42 that an or ball pivot fixed with base 9 is arranged, its lifting piston rod 40 is lived with polished rod synchronous points A and is cut with scissors, one to two fixing compensating cylinder is arranged, its dummy piston and light pipe 2 are fixed, or their two opposed dummy piston bars cut with scissors with equalizer 60 work respectively, equalizer 60 is lived by transverse axis B with light pipe 2 again and is cut with scissors, use communicating pipe 49 or serial connection liquid pump 50 between lifting cylinder pressure chamber 47 and the compensating cylinder pressure chamber 48, liquid valve 51 is interconnected, and counterweight 46 is put or/and be furnished with equalizer counterweight 69 on the equalizer 60 on being furnished with in the top of polished rod synchronous points A.
5, differential balancing lever oil-pumping machine of same well according to claim 1, it is characterized in that: the described same well differential balance mechanism that has adjusting device is a kind of bearing lifting hydraulic piston rod leverage, concrete structure is: have the bearing lifting piston rod 40 of an or ball pivot fixed with base 9 ', its lifting cylinder 42 ' cut with scissors with polished rod synchronous points A is alive, one to two fixing compensating cylinder is arranged, its dummy piston and light pipe 2 are fixed, or their two opposed dummy piston bars cut with scissors with equalizer 60 work respectively, equalizer 60 is lived by transverse axis B with light pipe 2 again and is cut with scissors, be interconnected with communicating pipe 49 or serial connection liquid pump 50 and liquid valve 51 between lifting cylinder pressure chamber 47 and the compensating cylinder pressure chamber 48, and the top of polished rod synchronous points A puts counterweight 46 on being furnished with or/and lifting cylinder 42 ' on be furnished with lifting cylinder counterweight 68 or/and be furnished with equalizer counterweight 69 on the equalizer 60.
6, differential balancing lever oil-pumping machine of same well according to claim 1, it is characterized in that: the described same well differential balance mechanism that has adjusting device is an a kind of concentric type hydraulic lever mechanism, concrete structure is: one to two fixing lifting cylinder is arranged, its lifting piston and polished rod head ball pivot, or their two opposed lifting piston rods respectively with lifting crossbeam 74 ball pivots, lifting crossbeam 74 again with polished rod 1 ball pivot, one to two fixing compensating cylinder is arranged, its dummy piston and light pipe 2 are connected, or their two opposed dummy piston bars cut with scissors with equalizer 60 work respectively, equalizer 60 is lived by transverse axis B with light pipe 2 again and is cut with scissors, be interconnected with communicating pipe 49 or serial connection liquid pump 50 and liquid valve 51 between lifting cylinder pressure chamber 47 and the compensating cylinder pressure chamber 48, and, be furnished with lifting crossbeam counterweight 77 on the lifting crossbeam 74 or/and be furnished with equalizer counterweight 69 on the equalizer 60 or/and be covered with light pipe counterweight 82 on the light pipe 2.
7, according to claim 1,2 or 3 or 4 or 5 differential balancing lever oil-pumping machine of same well, it is characterized in that polished rod synchronous points device has adopted walking beam-horse head structure: walking beam 7 is lived with support 8 by top-supported 0 and is cut with scissors, horse head 6 is assemblied on the walking beam 7, polished rod 1 usefulness rope suspension apparatus connects with the wire rope 5 that is suspended on the horse head, walking beam 7 is equipped with polished rod synchronous points hanger bearing 59 in the side that horse head is installed, perhaps be fixed with take-up housing 12, and polished rod synchronous points bearing support slide block 14 and 12 sliding joining of take-up housing, and screw on 12 14 with screw rod 13.
8, according to claim 1,2 or 3 or 4 or 5 differential balancing lever oil-pumping machine of same well, it is characterized in that polished rod synchronous points device has adopted the parallel-crank mechanism beam, concrete structure is: by the girder 64 of top-supported 0 with support 8 hinges alive, cutting with scissors with auxiliary girder 65, underbeam 67, curb girder 66 work successively is a two degrees of freedom parallel-crank mechanism, auxiliary girder 65 is located and polished rod 1 ball pivot at its directly moving some A ', and polished rod synchronous points A is arranged on the underbeam 67 intersection with line OA '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91100302 CN1063332A (en) | 1991-01-15 | 1991-01-15 | Differential balancing lever oil-pumping machine of same well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91100302 CN1063332A (en) | 1991-01-15 | 1991-01-15 | Differential balancing lever oil-pumping machine of same well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1063332A true CN1063332A (en) | 1992-08-05 |
Family
ID=4904547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91100302 Pending CN1063332A (en) | 1991-01-15 | 1991-01-15 | Differential balancing lever oil-pumping machine of same well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1063332A (en) |
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| CN103075133A (en) * | 2013-01-05 | 2013-05-01 | 无锡市科优液压设备制造有限公司 | Flow compensation type hydraulic pumping unit |
| CN103670343A (en) * | 2013-12-20 | 2014-03-26 | 王钰 | Hydraulic oil pumping drive device |
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-
1991
- 1991-01-15 CN CN 91100302 patent/CN1063332A/en active Pending
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| CN103061717A (en) * | 2013-01-05 | 2013-04-24 | 无锡市科优液压设备制造有限公司 | Four-cylinder type hydraulic pumping unit |
| CN103075133A (en) * | 2013-01-05 | 2013-05-01 | 无锡市科优液压设备制造有限公司 | Flow compensation type hydraulic pumping unit |
| CN103061717B (en) * | 2013-01-05 | 2015-09-02 | 无锡市科优液压设备制造有限公司 | A kind of four cylinder type hydraulic oil pumps |
| CN103670343A (en) * | 2013-12-20 | 2014-03-26 | 王钰 | Hydraulic oil pumping drive device |
| CN104196496A (en) * | 2014-08-25 | 2014-12-10 | 北京南车时代机车车辆机械有限公司 | Drilling machine and operating board lifting mechanism |
| CN107202048A (en) * | 2017-06-13 | 2017-09-26 | 北京航空航天大学 | A kind of highly integrated pressure balance type deep-sea electrohydraudic servomechanism |
| CN107202048B (en) * | 2017-06-13 | 2018-05-29 | 北京航空航天大学 | A kind of highly integrated pressure balance type deep-sea electrohydraudic servomechanism |
| CN109798090A (en) * | 2017-11-17 | 2019-05-24 | 珠海万博科学服务有限公司 | A kind of energy-efficient extraction petroleum environmental protection equipment |
| CN112502672A (en) * | 2021-02-03 | 2021-03-16 | 山东龙尚石油科技有限责任公司 | Front-mounted beam complementary balance pumping unit |
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