CN101787869A - Double-cylinder symmetrical type fully balanced hydraulic oil pumping unit - Google Patents
Double-cylinder symmetrical type fully balanced hydraulic oil pumping unit Download PDFInfo
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- CN101787869A CN101787869A CN200910300325A CN200910300325A CN101787869A CN 101787869 A CN101787869 A CN 101787869A CN 200910300325 A CN200910300325 A CN 200910300325A CN 200910300325 A CN200910300325 A CN 200910300325A CN 101787869 A CN101787869 A CN 101787869A
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- 238000005086 pumping Methods 0.000 title claims abstract description 61
- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 89
- 101100532451 Rattus norvegicus Slc22a17 gene Proteins 0.000 claims description 27
- 238000009877 rendering Methods 0.000 claims description 15
- 230000007306 turnover Effects 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000009183 running Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention provides a double-cylinder symmetrical type fully balanced hydraulic oil pumping unit. A first hydraulic cylinder and a second hydraulic cylinder are symmetrically distributed; the top end of each piston column is provided with a traction movable pulley respectively; an upper drag rope groove and a lower drag rope groove are symmetrically distributed; a first upper drag rope and a first lower drag rope apply symmetric stress on a first traction movable pulley; and a second upper drag rope and a second lower drag rope apply the symmetric stress on a second traction movable pulley. The double-cylinder symmetrical type fully balanced hydraulic oil pumping unit has the advantages of reasonable and compact structure, good overall balanced traction and oil-pumping, long service life, convenient use, high installability, low energy consumption, low maintenance cost and the like. Due to the adoption of symmetrical distribution of the hydraulic cylinders, the symmetric stress of the drag ropes and avoidance of distortion of the drag ropes, the overall stress applied to the double-cylinder symmetrical-type fully balanced hydraulic oil pumping unit is kept uniform; and under the condition of same load, the diameter of each rope is reduced, the flexibility of the ropes is improved, simultaneously the stress applied to each rope is reduced, and the service life of the ropes is prolonged and the system reliability is improved.
Description
One, technical field
The present invention relates to the oil pumper technical field of recover petroleum, is a kind of twin-tub symmetrical expression full-balanced hydraulic oil extractor.
Two, background technology
Existing oil pumper generally comprises beam pumping unit and hydraulic oil pumping unit etc., and beam pumping unit is more traditional oil pumper, but have following problem: structure is huger, weight ratio is bigger always, adjusts stroke, jig frequency and balance and all compares difficulty, and particularly energy consumption is higher; Hydraulic oil pumping unit is the new pumping unit that occurs in recent ten years, but short because of complex structure, application life, be not easy to use, maintenance cost is high never is widely used.
Three, summary of the invention
The invention provides a kind of twin-tub symmetrical expression full-balanced hydraulic oil extractor, overcome the deficiency of above-mentioned prior art, solved prior art complex structure, application life short, be not easy to problems such as uses, maintenance cost height, it has reasonable and compact in structure, stressed symmetrical distribution, traction and oil pumping and all has good whole balance, long service life, easy to use, advantage such as installation property is good, energy consumption is low, maintenance cost is low.
Technical scheme of the present invention realizes by following measure: a kind of twin-tub symmetrical expression full-balanced hydraulic oil extractor, it comprises hydraulic means, this hydraulic means comprises hydraulic cylinder and hydraulic pump, hydraulic cylinder is connected with hydraulic pump by fluid pressure line, hydraulic cylinder comprises cylinder body, piston boit and piston, this hydraulic cylinder adopts two-way hydraulic cylinder, tandem-driving bogie is positioned at frame, the top of the frame above tandem-driving bogie is equipped with the oil pumping fixed pulley, the inner of oil pumping platform is installed in the upper outside of frame, outside at the oil pumping platform is equipped with the oil pumping directive wheel, the inner of oil pumping rope is fixedly mounted on the tandem-driving bogie, can fixedly connected with sucker rod by behind oil pumping fixed pulley and the directive wheel of pumping in the outer end of oil pumping rope; Respectively there are a hydraulic cylinder i.e. first hydraulic cylinder and second hydraulic cylinder in frame both sides in the traction plane vertical with oil pumping plane, oil pumping rope place, first hydraulic cylinder and second hydraulic cylinder distribute symmetrically, the bottom of each hydraulic cylinder is fixedly mounted on the base of traction framework, each piston boit top respectively is equipped with a traction the movable pulley i.e. first traction movable pulley and the second traction movable pulley, on each traction movable pulley the rope groove that is no less than three is arranged, this rope groove comprises overhanging cable rope groove and following drag rope groove; Be equipped with in the upper outside of the frame of first hydraulic cylinder of the traction plane above the tandem-driving bogie and draw directive wheel on first, the outside, bottom of the frame of first hydraulic cylinder of the traction plane below tandem-driving bogie is equipped with the traction directive wheel first time; Be equipped with in the upper outside of the frame of second hydraulic cylinder of the traction plane above the tandem-driving bogie and draw directive wheel on second, the outside, bottom of the frame of second hydraulic cylinder of the traction plane below tandem-driving bogie is equipped with the traction directive wheel second time; The inner of the first overhanging cable rope is fixedly mounted on the last outside of tandem-driving bogie of first hydraulic cylinder, one side, the outer end of the first overhanging cable rope is fixedly mounted on after by the overhanging cable rope groove that draws directive wheel, the first traction movable pulley on first on the putting on the shelf of traction framework, the inner of first time drag rope is fixedly mounted on the following outside of tandem-driving bogie of first hydraulic cylinder, one side, is fixedly mounted on the undercarriage of traction framework behind the following drag rope groove of the outer end of first time drag rope by first time traction directive wheel, the first traction movable pulley; The inner of the second overhanging cable rope is fixedly mounted on the last outside of tandem-driving bogie of second hydraulic cylinder, one side, the outer end of the second overhanging cable rope is fixedly mounted on after by the overhanging cable rope that draws directive wheel, the second traction movable pulley on second on the putting on the shelf of traction framework, the inner of second time drag rope is fixedly mounted on the following outside of tandem-driving bogie of second hydraulic cylinder, one side, is fixedly mounted on the undercarriage of traction framework behind the following drag rope groove of the outer end of second time drag rope by second time traction directive wheel, the second traction movable pulley; Traction movable pulley, the first overhanging cable rope, first time drag rope, the second overhanging cable rope, second time drag rope on the piston boit top by two hydraulic cylinders can make tandem-driving bogie along moving up and down in the frame; Overhanging cable rope groove is symmetrically distributed with following drag rope groove, and the first overhanging cable rope and first time drag rope make the first traction movable pulley symmetry stressed; The first overhanging cable rope moves on a traction plane, and first time drag rope moves on a traction plane, and the second overhanging cable rope and second time drag rope make the second traction movable pulley symmetry stressed; The second overhanging cable rope moves on a traction plane, and second time drag rope moves on a traction plane.
Be further optimization and/or improvements below to the invention described above technical scheme:
Above-mentioned hydraulic means can adopt multi-level piston two-way hydraulic cylinder, the cylinder body of this multi-level piston two-way hydraulic cylinder comprises stationary housing and is no less than the active cylinder block of one-level, piston is all arranged in every grade of cylinder body, the below of each piston is last an actor's rendering of an operatic tune, the top of each piston is reverse chamber, and the piston in the lower end of piston boit and the final stage active cylinder block is fixed together or becomes one; Piston in the lower end of final stage active cylinder block and its next stage active cylinder block be fixed together or become one and have on this piston up oil circuit hole will go up lower cylinder body on an actor's rendering of an operatic tune be communicated with; The reverse oil paths is arranged on active cylinder block, and the top import and export of this reverse oil paths communicate with the top, reverse chamber in the active cylinder block, and the bottom import and export of this reverse oil paths communicate with the bottom, reverse chamber outside the active cylinder block; In the connection of the bottom of stationary housing an actor's rendering of an operatic tune connection on the up oil circuit Guan Bingyu is arranged, connecting on the top of stationary housing has the reverse chamber of reverse oil circuit Guan Bingyu to be communicated with.
The reverse oil paths that is no less than two symmetrical distributions can be arranged on above-mentioned active cylinder block.
The reverse oil paths that four symmetrical distributions can be arranged on above-mentioned active cylinder block.
The inner of above-mentioned oil pumping platform can be hinged on the upper outside of frame, the oil pumping platform can on turn over or side is changeed.
The outside of above-mentioned oil pumping platform can with on turn over or side to change the piston boit outer end of hydraulic cylinder hinged, on turn over or base that side is changeed hydraulic cylinder is hinged on the frame.
The weight of above-mentioned tandem-driving bogie can equal the sucker rod empty-weight.
Above-mentioned hydraulic means and corresponding rack section thereof can have moist closet, and hydraulic means is positioned at moist closet.
Above-mentioned overhanging cable rope can be odd number and following drag rope is even numbers, perhaps the overhanging cable rope be odd number and following drag rope be odd number, perhaps the overhanging cable rope be even numbers and following drag rope can be even numbers, perhaps the overhanging cable rope be even numbers and following drag rope be odd number, overhanging cable rope and following drag rope mutual sub-thread compartment of terrain or mutual multiply compartment of terrain are installed in the rope groove that draws on the movable pulley.
Rope is fixed together by polished rod eye and sucker rod above-mentioned oil pumping rope or/and the first overhanging cable rope or/and first time drag rope can adopt sub-thread rope or flat rope or sub-thread chain or multiply chain or banded rope, is pumped.
The up oil circuit pipe of above-mentioned each hydraulic cylinder can be connected in parallel together, and the reverse oil circuit pipe of each hydraulic cylinder is connected in parallel together.
The present invention has reasonable and compact in structure, traction and oil pumping and has good whole balance, long service life, easy to use, advantage such as installation property is good, energy consumption is low, maintenance cost is low.Owing to adopt symmetrical distribution, drag rope symmetrical stressed of hydraulic cylinder and avoid the distortion of drag rope, make the present invention whole stressed even, under same loading condition, reduce the diameter of per share rope, improve the pliability of rope, reduce the stressed of every rope simultaneously, improve the application life and the system reliability of rope.The present invention can also further realize the needs of many multiplication speed and long stroke, can also further avoid the piston high-speed motion, makes piston movement speed reach perfect condition, thereby prolongs the application life of hydraulic cylinder.
Four, description of drawings
Accompanying drawing 1 is looked the sectional structure schematic diagram for the master of the embodiment 1 of multi-level piston two-way hydraulic cylinder among the present invention.
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to sectional structure.Accompanying drawing 3 is that the B-B of accompanying drawing 1 is to sectional structure.
Accompanying drawing 4 is looked the sectional structure schematic diagram for the master of the embodiment 2 of multi-level piston two-way hydraulic cylinder among the present invention.
Accompanying drawing 5 is that the C-C of accompanying drawing 4 is to sectional structure.Accompanying drawing 6 is that the D-D of accompanying drawing 4 is to sectional structure.
Accompanying drawing 7 is looked the sectional structure schematic diagram for the master of embodiments of the invention 3.
Accompanying drawing 8 is looked the sectional structure schematic diagram for the master of traction movable pulley in the accompanying drawing 7.
Accompanying drawing 9 is that the E-E of accompanying drawing 7 is to the broken section structural representation.
Coding in the accompanying drawing is respectively: 1 is piston boit, and 2 is stationary housing, and 3 is piston, and 4 is last an actor's rendering of an operatic tune, 5 is reverse chamber, and 6 is the final stage active cylinder block, and 7 is up oil circuit hole, and 8 is the reverse oil paths, 9 is up oil circuit pipe, and 10 is reverse oil circuit pipe, and 11 is intermediate active cylinder block; 12 is first hydraulic cylinder, and 13 is hydraulic pump, and 14 is tandem-driving bogie, and 15 is frame, and 16 are the oil pumping fixed pulley, and 17 are the oil pumping platform, and 18 are the oil pumping directive wheel, and 19 are the oil pumping rope, and 20 be moist closet, 21 on turn over or side commentaries on classics hydraulic cylinder, 22 is polished rod eye, 23 is soil; 24 is to draw directive wheel on second, 25 is to draw directive wheel on first, 26 is second time traction directive wheel, 27 is first time traction directive wheel, and 28 are the traction framework, and 29 is the first traction movable pulley, 30 is the rope groove, 31 is the first overhanging cable rope, and 32 is first time drag rope, and 33 is second time drag rope; 34 is second hydraulic cylinder, and 35 is the second traction movable pulley, and 36 is the second overhanging cable rope.
Five, the specific embodiment
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
Below in conjunction with embodiment and accompanying drawing the present invention is further described:
Embodiment 3: shown in accompanying drawing 7 and 8, this twin-tub symmetrical expression full-balanced hydraulic oil extractor comprises hydraulic means, this hydraulic means comprises hydraulic cylinder and hydraulic pump 13, hydraulic cylinder is connected with hydraulic pump 13 by fluid pressure line, hydraulic cylinder comprises cylinder body, piston boit 1 and piston 3, this hydraulic cylinder adopts two-way hydraulic cylinder, tandem-driving bogie 14 is positioned at frame 15, the top of the frame 15 above tandem-driving bogie 15 is equipped with oil pumping fixed pulley 16, the inner of oil pumping platform 17 is installed in the upper outside of frame 15, in the outside of oil pumping platform 17 oil pumping directive wheel 18 is installed, the inner of oil pumping rope 19 is fixedly mounted on the tandem-driving bogie 14, can fixedly connected with sucker rod by behind oil pumping fixed pulley 16 and the directive wheel 18 of pumping in the outer end of oil pumping rope 19; Respectively there are a hydraulic cylinder i.e. first hydraulic cylinder 12 and second hydraulic cylinder 34 in frame 15 both sides in the traction plane vertical with oil pumping plane, oil pumping rope 19 places, first hydraulic cylinder 12 and second hydraulic cylinder 34 distribute symmetrically, the bottom of each hydraulic cylinder is fixedly mounted on the base of traction framework 28, each piston boit top respectively is equipped with a traction the movable pulley i.e. first traction movable pulley 29 and the second traction movable pulley 35, on each traction movable pulley the rope groove 30 that is no less than three is arranged, this rope groove comprises overhanging cable rope groove and following drag rope groove; The upper outside of the frame 15 of first hydraulic cylinder 12 of the traction plane above tandem-driving bogie 14 is equipped with traction directive wheel 25 on first, and the outside, bottom of the frame 15 of first hydraulic cylinder 12 of the traction plane below tandem-driving bogie 14 is equipped with traction directive wheel 27 first time; The upper outside of the frame 15 of second hydraulic cylinder 34 of the traction plane above tandem-driving bogie 14 is equipped with traction directive wheel 24 on second, and the outside, bottom of the frame 15 of second hydraulic cylinder 34 of the traction plane below tandem-driving bogie 14 is equipped with traction directive wheel 26 second time; The inner of the first overhanging cable rope 31 is fixedly mounted on the last outside of tandem-driving bogie 14 of first hydraulic cylinder, 12 1 sides, directive wheel 25 is drawn in the outer end of the first overhanging cable rope 31 on first, be fixedly mounted on behind the overhanging cable rope groove of the first traction movable pulley 29 on traction the putting on the shelf of framework 28, the inner of first time drag rope 32 is fixedly mounted on the following outside of tandem-driving bogie 14 of first hydraulic cylinder, 12 1 sides, and the outer end of first time drag rope 32 is by first time traction directive wheel 27, be fixedly mounted on the undercarriage of traction framework 28 behind the following drag rope groove of the first traction movable pulley 29; The inner of the second overhanging cable rope 36 is fixedly mounted on the last outside of tandem-driving bogie 14 of second hydraulic cylinder, 34 1 sides, directive wheel 24 is drawn in the outer end of the second overhanging cable rope 36 on second, be fixedly mounted on behind the overhanging cable rope of the second traction movable pulley 35 on traction the putting on the shelf of framework 28, the inner of second time drag rope 33 is fixedly mounted on the following outside of tandem-driving bogie 14 of second hydraulic cylinder, 34 1 sides, and the outer end of second time drag rope 33 is by second time traction directive wheel 26, be fixedly mounted on the undercarriage of traction framework 28 behind the following drag rope groove of the second traction movable pulley 35; The traction movable pulley on piston boit 1 top by two hydraulic cylinders, the first overhanging cable rope 31, first time drag rope 32, the second overhanging cable rope 36, second time drag rope 33 can make tandem-driving bogie along moving up and down in the frame; Overhanging cable rope groove is symmetrically distributed with following drag rope groove, and the first overhanging cable rope 31 and first time drag rope 32 make the first traction movable pulley, 29 symmetries stressed; The first overhanging cable rope 31 moves on a traction plane, and first time drag rope 32 moves on a traction plane, and the second overhanging cable rope 36 and second time drag rope 33 make the second traction movable pulley, 35 symmetries stressed; The second overhanging cable rope 36 moves on a traction plane, and second time drag rope 33 moves on a traction plane.Owing to avoid the distortion of drag rope, reduced resistance, adopt first hydraulic cylinder 12 and second hydraulic cylinder 34 to be symmetrically distributed simultaneously, make the present invention whole stressed even, increased the reliability and the application life of drag rope.The present invention is when work: tandem-driving bogie 14 keeps relative equilibrium by oil pumping rope 19 and sucker rod load, therefore, the merit that drop-down tandem-driving bogie 14 is done is mainly used in and promotes fluid column and overcome the needed merit of frictional force that sucker rod moves upward from oil well, on draw tandem-driving bogie 14 to do merit be mainly used in sucker rod and overcome the frictional force that moves downward and oil well pump is resetted, thereby the minimizing idle work has reduced energy consumption.
Can according to actual needs above-mentioned twin-tub symmetrical expression full-balanced hydraulic oil extractor be made further optimization and/or improvements:
Shown in accompanying drawing 7 and 8, the inner of oil pumping platform 17 is hinged on the upper outside of frame 15, oil pumping platform 17 can on turn over or side is changeed, thereby allow the oil well mouth be convenient to revise well operations, preferably realize (but also can by manually realizing) by hydraulic pressure, the outside of oil pumping platform 17 with on turn over or side to change the piston boit outer end of hydraulic cylinder 21 hinged, on turn over or the base of side commentaries on classics hydraulic cylinder 21 is hinged on the frame 15.
In order to help the operate as normal of hydraulic means, above-mentioned hydraulic means and corresponding frame 15 parts thereof preferably have moist closet 20, hydraulic means is positioned at moist closet 20, the base of frame 15 can rest on the ground, preferably the moist closet 20 of the hydraulic means of embodiment 4 and corresponding frame 15 parts thereof is placed the relative thermostat layer of below ground, become underground cell-type in use, make the hydraulic means working environment be in metastable state like this, help reducing the fault of hydraulic means, thereby prolonged the application life of hydraulic means, reduced maintenance cost, reduced the height of derrick, improved stability and reduce installation difficulty.Be specially adapted to summer than sweltering heat or/and winter than the oil exploitation of cold district.
In order to help drawing the symmetrical stressed of movable pulley, as shown in Figure 8, overhanging cable rope 31 can be odd number and following drag rope 32 can be even numbers, perhaps overhanging cable rope 31 can be odd number and following drag rope 32 can be odd number, perhaps overhanging cable rope 31 can be even numbers and following drag rope 32 can be even numbers, perhaps overhanging cable rope 31 can be even numbers and following drag rope 32 can be odd number, overhanging cable rope 31 and following drag rope 32 mutual sub-thread compartment of terrains or mutual multiply compartment of terrain be installed in the rope groove 30 that draws on the movable pulley.Make the present invention whole stressed even like this, following drag rope 32 and overhanging cable rope 31 preferably adopt multiply, this is under same loading condition, reduce the diameter of per share rope, improve the pliability of rope, reduce the stressed of every rope simultaneously, thereby also improve the application life and the system reliability of rope.
Shown in accompanying drawing 7 and 8, oil pumping rope 19 can adopt sub-thread rope or flat rope or sub-thread chain or multiply chain or banded rope, can determine according to actual needs, and oil pumping rope 19 is fixed together by polished rod eye 22 and sucker rod.
Hydraulic means can adopt single stage piston two-way hydraulic cylinder or multi-level piston two-way hydraulic cylinder, can come as required to determine, shown in accompanying drawing 1 to 8, hydraulic means can adopt multi-level piston two-way hydraulic cylinder, shown in accompanying drawing 1 to 6, this multi-level piston two-way hydraulic cylinder comprises cylinder body, piston boit 1 and piston 3, cylinder body comprises stationary housing 2 and is no less than the active cylinder block of one-level, piston 3 is all arranged in every grade of cylinder body, the below of each piston 3 is last an actor's rendering of an operatic tune 4, the top of each piston 3 is reverse chamber 5, and the piston 3 in the lower end of piston boit 1 and the final stage active cylinder block 6 is fixed together or becomes one; Piston 3 in the lower end of final stage active cylinder block 6 and its next stage active cylinder block be fixed together or become one and have on this piston 3 up oil circuit hole 7 will go up lower cylinder body on an actor's rendering of an operatic tune 4 be communicated with; Reverse oil paths 8 is arranged on active cylinder block, and the top import and export of this reverse oil paths 8 communicate with 5 tops, reverse chamber in the active cylinder block, and the bottom import and export of this reverse oil paths 8 communicate with 5 bottoms, reverse chamber outside the active cylinder block; Connecting in the bottom of stationary housing 2 has up oil circuit pipe 9 and is communicated with last an actor's rendering of an operatic tune 4, reverse oil circuit pipe 10 is arranged and is communicated with reverse chamber 5 in the connection of the top of stationary housing 2.
Embodiment 1: shown in accompanying drawing 1 to 3, be with above-mentioned multi-level piston two-way hydraulic cylinder difference: the cylinder body of embodiment 1 comprises stationary housing 2 and active cylinder block, having only the one-level active cylinder block is final stage active cylinder block 6, and the lower end of final stage active cylinder block 6 and its next stage active cylinder block to be piston 3 in the stationary housing 2 be fixed together or become one and have on this piston 3 up oil circuit hole 7 will go up lower cylinder body on an actor's rendering of an operatic tune 4 be communicated with.Its course of work is as follows: when needs piston boit 1 is up, upwards inject high pressure liquid in an actor's rendering of an operatic tune 4 by up lubricating oil road pipe 9, and oppositely oil circuit pipe 10 is in to effluxing the high pressure liquid state that unloads, thereby makes piston 3 in the stationary housing 2 and the pistons 3 in the final stage active cylinder block 6 all make progress operation and drive piston boit 1 stretches out; When needs piston boit 1 reverse when descending, in reverse chamber 5, inject high pressure liquid by reverse oil circuit pipe 10, and up lubricating oil road pipe 9 is in to effluxing the high pressure liquid state that unloads, thereby makes all inverted runnings and drive piston boit 1 and shrink downwards of piston 3 in the stationary housing 2 and the piston 3 in the final stage active cylinder block 6.
Embodiment 2: shown in accompanying drawing 1 to 6, be with the difference of embodiment 1: shown in accompanying drawing 4 to 6, the cylinder body of embodiment 2 comprises stationary housing 2 and secondary active cylinder block, and this secondary active cylinder block comprises intermediate active cylinder block 11 and final stage active cylinder block 6; The lower end of final stage active cylinder block 6 and its next stage active cylinder block be the piston 3 in the intermediate active cylinder block 11 be fixed together or become one and have on this piston 3 up oil circuit hole 7 will go up lower cylinder body on an actor's rendering of an operatic tune 4 be communicated with; Lower end and its next stage active cylinder block of middle rank active cylinder block 11 be stationary housing 2 interior pistons 3 be fixed together or become one and have on this piston 3 up oil circuit hole 7 will go up lower cylinder body on an actor's rendering of an operatic tune 4 be communicated with.Its course of work is as follows: when needs piston boit 1 is up, upwards inject high pressure liquid in an actor's rendering of an operatic tune 4 by up lubricating oil road pipe 9, and oppositely oil circuit pipe 10 is in to effluxing the high pressure liquid state that unloads, thereby makes piston 3 in the piston 3 in the stationary housing 2, the intermediate active cylinder block 11 and the pistons 3 in the final stage active cylinder block 6 all make progress operation and drive piston boit 1 stretches out; When needs piston boit 1 reverse when descending, in reverse chamber 5, inject high pressure liquid by reverse oil circuit pipe 10, and up lubricating oil road pipe 9 is in to effluxing the high pressure liquid state that unloads, thereby makes all inverted runnings and drive piston boit 1 and shrink downwards of piston 3 in the piston 3 in the stationary housing 2, the intermediate active cylinder block 11 and the piston 3 in the final stage active cylinder block 6.
Can according to actual needs above-mentioned multi-level piston two-way hydraulic cylinder be made further optimization and/or improvements:
The reverse oil paths 8 that is no less than two symmetrical distributions can be arranged on above-mentioned active cylinder block, shown in accompanying drawing 1 to 6, the reverse oil paths 8 of four symmetrical distributions is arranged preferably on active cylinder block.
Shown in accompanying drawing 7 and 9, the up oil circuit pipe of each hydraulic cylinder is connected in parallel together, and the reverse oil circuit pipe of each hydraulic cylinder is connected in parallel together, is convenient to control each hydraulic cylinder synchronous operation.
In the present invention: that the piston control device for reversing of hydraulic means can adopt the mechanical trip switching regulator or electronic control type etc. existing technique known.
In the present invention: the progression of active cylinder block is many more, and the distance of stretching out or shrinking of piston boit 1 is restricted just few more, and the speed of stretching out or shrinking of piston boit 1 is just fast more.
Above technical characterictic has constituted embodiments of the invention, and it has stronger compliance and preferable implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
Claims (10)
1. twin-tub symmetrical expression full-balanced hydraulic oil extractor, comprise hydraulic means, this hydraulic means comprises hydraulic cylinder and hydraulic pump, hydraulic cylinder is connected with hydraulic pump by fluid pressure line, hydraulic cylinder comprises cylinder body, piston boit and piston, this hydraulic cylinder adopts two-way hydraulic cylinder, it is characterized in that tandem-driving bogie is positioned at frame, the top of the frame above tandem-driving bogie is equipped with the oil pumping fixed pulley, the inner of oil pumping platform is installed in the upper outside of frame, outside at the oil pumping platform is equipped with the oil pumping directive wheel, and the inner of oil pumping rope is fixedly mounted on the tandem-driving bogie, can fixedly connected with sucker rod by behind oil pumping fixed pulley and the directive wheel of pumping in the outer end of oil pumping rope; Respectively there are a hydraulic cylinder i.e. first hydraulic cylinder and second hydraulic cylinder in frame both sides in the traction plane vertical with oil pumping plane, oil pumping rope place, first hydraulic cylinder and second hydraulic cylinder distribute symmetrically, the bottom of each hydraulic cylinder is fixedly mounted on the base of traction framework, each piston boit top respectively is equipped with a traction the movable pulley i.e. first traction movable pulley and the second traction movable pulley, on each traction movable pulley the rope groove that is no less than three is arranged, this rope groove comprises overhanging cable rope groove and following drag rope groove; Be equipped with in the upper outside of the frame of first hydraulic cylinder of the traction plane above the tandem-driving bogie and draw directive wheel on first, the outside, bottom of the frame of first hydraulic cylinder of the traction plane below tandem-driving bogie is equipped with the traction directive wheel first time; Be equipped with in the upper outside of the frame of second hydraulic cylinder of the traction plane above the tandem-driving bogie and draw directive wheel on second, the outside, bottom of the frame of second hydraulic cylinder of the traction plane below tandem-driving bogie is equipped with the traction directive wheel second time; The inner of the first overhanging cable rope is fixedly mounted on the last outside of tandem-driving bogie of first hydraulic cylinder, one side, the outer end of the first overhanging cable rope is fixedly mounted on after by the overhanging cable rope groove that draws directive wheel, the first traction movable pulley on first on the putting on the shelf of traction framework, the inner of first time drag rope is fixedly mounted on the following outside of tandem-driving bogie of first hydraulic cylinder, one side, is fixedly mounted on the undercarriage of traction framework behind the following drag rope groove of the outer end of first time drag rope by first time traction directive wheel, the first traction movable pulley; The inner of the second overhanging cable rope is fixedly mounted on the last outside of tandem-driving bogie of second hydraulic cylinder, one side, the outer end of the second overhanging cable rope is fixedly mounted on after by the overhanging cable rope that draws directive wheel, the second traction movable pulley on second on the putting on the shelf of traction framework, the inner of second time drag rope is fixedly mounted on the following outside of tandem-driving bogie of second hydraulic cylinder, one side, is fixedly mounted on the undercarriage of traction framework behind the following drag rope groove of the outer end of second time drag rope by second time traction directive wheel, the second traction movable pulley; Traction movable pulley, the first overhanging cable rope, first time drag rope, the second overhanging cable rope, second time drag rope on the piston boit top by two hydraulic cylinders can make tandem-driving bogie along moving up and down in the frame; Overhanging cable rope groove is symmetrically distributed with following drag rope groove, and the first overhanging cable rope and first time drag rope make the first traction movable pulley symmetry stressed; The first overhanging cable rope moves on a traction plane, and first time drag rope moves on a traction plane, and the second overhanging cable rope and second time drag rope make the second traction movable pulley symmetry stressed; The second overhanging cable rope moves on a traction plane, and second time drag rope moves on a traction plane.
2. twin-tub symmetrical expression full-balanced hydraulic oil extractor according to claim 1, it is characterized in that hydraulic means adopts multi-level piston two-way hydraulic cylinder, the cylinder body of this multi-level piston two-way hydraulic cylinder comprises stationary housing and is no less than the active cylinder block of one-level, piston is all arranged in every grade of cylinder body, the below of each piston is last an actor's rendering of an operatic tune, the top of each piston is reverse chamber, and the piston in the lower end of piston boit and the final stage active cylinder block is fixed together or becomes one; Piston in the lower end of final stage active cylinder block and its next stage active cylinder block be fixed together or become one and have on this piston up oil circuit hole will go up lower cylinder body on an actor's rendering of an operatic tune be communicated with; The reverse oil paths is arranged on active cylinder block, and the top import and export of this reverse oil paths communicate with the top, reverse chamber in the active cylinder block, and the bottom import and export of this reverse oil paths communicate with the bottom, reverse chamber outside the active cylinder block; In the connection of the bottom of stationary housing an actor's rendering of an operatic tune connection on the up oil circuit Guan Bingyu is arranged, connecting on the top of stationary housing has the reverse chamber of reverse oil circuit Guan Bingyu to be communicated with.
3. according to claim 2 or described twin-tub symmetrical expression full-balanced hydraulic oil extractor, it is characterized in that having on the active cylinder block reverse oil paths that is no less than two symmetrical distributions.
4. according to claim 1 or 2 or 3 described twin-tub symmetrical expression full-balanced hydraulic oil extractors, the inner of the platform that it is characterized in that pumping is hinged on the upper outside of frame, the oil pumping platform can on turn over or side is changeed.
5. twin-tub symmetrical expression full-balanced hydraulic oil extractor according to claim 4, the outside of the platform that it is characterized in that pumping and on turn over or side to change the piston boit outer end of hydraulic cylinder hinged, on turn over or base that side is changeed hydraulic cylinder is hinged on the frame.
6. twin-tub symmetrical expression full-balanced hydraulic oil extractor according to claim 5 is characterized in that hydraulic means and corresponding rack section thereof have moist closet, and hydraulic means is positioned at moist closet.
7. twin-tub symmetrical expression full-balanced hydraulic oil extractor according to claim 6, it is characterized in that the overhanging cable rope be odd number and following drag rope be even numbers, perhaps the overhanging cable rope be odd number and following drag rope be odd number, perhaps the overhanging cable rope be even numbers and following drag rope can be even numbers, perhaps the overhanging cable rope be even numbers and following drag rope be odd number, overhanging cable rope and following drag rope mutual sub-thread compartment of terrain or mutual multiply compartment of terrain are installed in the rope groove that draws on the movable pulley.
8. twin-tub symmetrical expression full-balanced hydraulic oil extractor according to claim 7 is characterized in that the weight of tandem-driving bogie equals the sucker rod empty-weight.
9. twin-tub symmetrical expression full-balanced hydraulic oil extractor according to claim 8, it is characterized in that pumping rope or/and the first overhanging cable rope or/and first time drag rope adopts sub-thread rope or flat rope or sub-thread chain or multiply chain or banded rope, the oil pumping rope is fixed together by polished rod eye and sucker rod.
10. twin-tub symmetrical expression full-balanced hydraulic oil extractor according to claim 9 is characterized in that the up oil circuit pipe of each hydraulic cylinder is connected in parallel together, and the reverse oil circuit pipe of each hydraulic cylinder is connected in parallel together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910300325.0A CN101787869B (en) | 2009-01-23 | 2009-01-23 | Double-cylinder symmetrical type fully balanced hydraulic oil pumping unit |
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| CN200910300325.0A CN101787869B (en) | 2009-01-23 | 2009-01-23 | Double-cylinder symmetrical type fully balanced hydraulic oil pumping unit |
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| CN101787869A true CN101787869A (en) | 2010-07-28 |
| CN101787869B CN101787869B (en) | 2014-02-19 |
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| CN200910300325.0A Expired - Fee Related CN101787869B (en) | 2009-01-23 | 2009-01-23 | Double-cylinder symmetrical type fully balanced hydraulic oil pumping unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949279A (en) * | 2010-09-29 | 2011-01-19 | 叶江波 | Counterweight balancing vertical hydraulic pumping unit |
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| CN101074663A (en) * | 2007-06-21 | 2007-11-21 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Oil sucker with eccentric wheel and without beam |
| CN201031793Y (en) * | 2007-05-11 | 2008-03-05 | 大庆油田有限责任公司 | Low type completely balancing long stroke beam-pumping unit |
| CN201344024Y (en) * | 2009-01-23 | 2009-11-11 | 徐洪德 | Double-cylinder symmetrical-type equilibrium hydraulic pumping unit |
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|---|---|---|---|---|
| US6152015A (en) * | 1997-09-23 | 2000-11-28 | Migliori; Luciano | One-side fed, double-acting, pneumatic actuator |
| CN2463561Y (en) * | 2001-01-17 | 2001-12-05 | 徐长青 | Full balance chain pulley driving vertical beam-pumping unit |
| CN201031793Y (en) * | 2007-05-11 | 2008-03-05 | 大庆油田有限责任公司 | Low type completely balancing long stroke beam-pumping unit |
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| CN101949279A (en) * | 2010-09-29 | 2011-01-19 | 叶江波 | Counterweight balancing vertical hydraulic pumping unit |
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| CN101787869B (en) | 2014-02-19 |
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