CN109488257A - A kind of hydraulic pumping unit of pressure complementation - Google Patents
A kind of hydraulic pumping unit of pressure complementation Download PDFInfo
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- CN109488257A CN109488257A CN201811598504.2A CN201811598504A CN109488257A CN 109488257 A CN109488257 A CN 109488257A CN 201811598504 A CN201811598504 A CN 201811598504A CN 109488257 A CN109488257 A CN 109488257A
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- 238000005086 pumping Methods 0.000 title claims abstract description 52
- 239000003921 oil Substances 0.000 claims abstract description 50
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 61
- 239000002828 fuel tank Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 18
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 9
- 230000002457 bidirectional effect Effects 0.000 abstract description 42
- 230000007423 decrease Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 241001023788 Cyttus traversi Species 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 241001416181 Axis axis Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 241000283074 Equus asinus Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20561—Type of pump reversible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
- F15B2211/20592—Combinations of pumps for supplying high and low pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/765—Control of position or angle of the output member
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of hydraulic pumping unit of pressure complementation allows two hydraulic cylinders alternately to move up and down and underground pump work is driven to achieve the purpose that oil pumping for the hydraulic cylinder being arranged in pairs.When a hydraulic cylinder cylinder rod rises oil pumping, bidirectional hydraulic pump oiling is needed to provide the energy risen.At this moment another hydraulic cylinder is the decline stage, the gravitional force of its lifting rope components decline below will release, the part of these energy is supplied to the hydraulic cylinder risen to biliquid press pump by hydraulic oil, so that the power of drive motor reduces, has energy-efficient effect.The continuous forward and reverse operation of bidirectional hydraulic pump will be so that a hydraulic cylinder rod rises, another hydraulic cylinder rod declines.The work that the present invention will be made continuously to complete oil pumping.Multipair hydraulic cylinder can be configured in the case where adding current divider, meet the requirement of more pumping units of local use.
Description
Technical field
The invention belongs to pumping unit for oil field technical fields, more particularly to a kind of hydraulic pumping unit of pressure complementation.
Technical background
The pumping unit in oil field, it is most typical to count beam pumping unit.Its reliable performance, structure is simple, Operation and Maintenance
Simply, technology maturation.It is mainly characterized by: said device features rational structure, stable working, and noise is small and convenient operating maintenance；Intensity
Height, good, the large carrying capacity of rigidity, long service life；Brake uses hem type structure, is furnished with safety device, flexible operation, braking
Rapidly, securely and reliably.His the shortcomings that is: the imbalance due to caused by its structure causes output torque fluctuation big, and the loss of electric machine is big.
As shown in fig. 6, the working principle of conventional beam-pumping unit is, mainly by crank, gearbox, connecting rod and walking beam structure
At link mechanism, under driving of the motor through gearbox so that horse head move up and down.Pass through lifting rope, polished rod eye and polished rod
Drive under, drive the execution unit of down-hole pump to move up and down, extract down-hole liquid out ground.Wherein balance weight is when on horse head
Booster action from when rising, storage energy is used when horse head declines.
201 in Fig. 6 be pedestal, and 202 be gearbox, and 203 be motor, and 204 be brake, and 205 be belt pulley, and 206 are
Crank, 207 be balance weight, and 208 be connecting rod, and 209 be walking beam, and 210 be horse head, and 211 be lifting rope, and 212 be polished rod eye, and 213 be branch
Frame, 214 be oil pipe, and 215 be polished rod, and 216 be down-hole pump.
Forward type beam pumping unit is that the one kind changed is done to conventional beam-pumping unit.When being rushed on horse head by crank
Rotation angle be designed to about 195 °, the rotation angle of crank is designed to about 165 ° when horse head declines.Process of the horse head in rising
The middle time extends, in this way, the power of motor can reduce.Play the role of energy-efficient.
Tower shelf type oil pumping machine is a kind of no beam pumping unit, its main feature is that walking beam and donkey conventional beam-pumping unit
Head changes the concentric combined wheels of an assembling into, and bracket high-stroke is long.Its working principle is: motor supplies power, through subtracting
Fast device, crank, connecting rod, lifting rope and Composite Transmission make polished rod eye that down-hole pump be driven to pump, down-hole liquid are extracted out
Ground.Its advantages are that stroke is long, and extract ability is strong, smooth running, reliably.The disadvantage is that structure is complicated, main screw lift and height
Degree is big, and installation, parameter adjustment and maintenance are relatively elaborate, and lifting rope is squeezed destructible by heavy duty, and is replaced relatively difficult.
Without beam pumping unit, one such is the patented product introduced from the U.S..Using the absorbing of load belt
Characteristic slows down the influence of impact, and big sprocket wheel extends commutating period, reduces reversing impact, and chain increases the reliability of transmission.
Realize that stroke is long, energy conservation, low jig frequency is easy to operate, high reliability.Its shortcoming, to well head height and well head class
Type is more demanding, and stroke is fixed from adjustment.
Summary of the invention
The purpose of the present invention is designing a hydraulic system, controls two hydraulic cylinders and alternately make the pumping to pump
The movement of oil machine.When the cylinder rod of a hydraulic cylinder moves downward, i.e. the down stroke process of pumping unit, the cylinder of another hydraulic cylinder
Bar moves upwards, i.e. the upstroke process of pumping unit.When the cylinder rod of a hydraulic cylinder moves downward, under gravity,
Wherein the potential energy of lifting rope components decline below will release, and at this moment, the cylinder rod of another hydraulic cylinder is moving upwards,
Need to obtain energy rising.The portion of energy that the hydraulic cylinder of cylinder rod decline releases is passed to by hydraulic oil through bidirectional hydraulic pump
The hydraulic cylinder that cylinder rod rises, such cylinder rod energy required when rising will be reduced, and have energy-efficient effect.When two hydraulic cylinders
The direction of motion transformation when, the hydraulic energy between them is complementary to a certain extent.Because oil-producing region be usually by
A lot of adjacent pumping units work at the same time, and the scheme as the pumping unit used in pairs is that there is no problem.For recovering the oil
When area needs multipair pumping unit to work, the present invention can be realized on the replacing two-by-two of multipair hydraulic cylinder by the way that current divider is arranged
Lower movement realizes that more pumping units work at the same time in a lesser region.
It uses hydraulic oil less to be limited as energy transmission by structure and distance, implements the transmitting than purely mechanic energy
Want more advantageous.
For hydraulic pump, the calculation formula of input power and torque relationship are as follows:
M=V•ΔP/6.28ηm
Wherein, M-- input torque N M, V-- discharge capacity L/min, the gross efficiency of Δ P-- inlet and outlet pressure difference bar, η m-- hydraulic pump.
From formula it can be seen that in the case where other values are invariable, hydraulic pump inlet and outlet pressure difference is smaller, required
The torque to be inputted is smaller, and it is big that pressure of the pressure of oil certainly than the oil provided in fuel tank is excluded when the cylinder rod of hydraulic cylinder declines.
Therefore, it is injected when hydraulic pump draws cylinder rod rising of the oil excluded when a cylinder pressure cylinder rod decline to another hydraulic cylinder hydraulic
Oil, required torque can be smaller.And it is injected when drawing the oily cylinder rod rising for being supplied to another hydraulic cylinder from fuel tank hydraulic
Oil, required torque want larger.If hydraulic pump is bidirectional hydraulic pump, the flow direction of change hydraulic oil as needed, two
The cylinder rod of a hydraulic cylinder will alternately move up and down, and complete same Pumping action, and torque required for bidirectional hydraulic pumps will subtract
Small, the power of required motor will be smaller.
The technical solution of use
An electric control system is designed, provides power and control to main fluid power system and auxiliary fluid power system, simultaneously
Feedback signal is received, adjustment is supplied to main fluid power system based on the feedback signal and auxiliary fluid power system provides the big of power
It is small, including starting, stopping, the positive operation, inverted running, overload protection to main fluid power system and auxiliary fluid power system
Monitoring with corresponding main fluid power system and auxiliary fluid power system and control etc., realize to the movement velocity of hydraulic cylinder and
The Traffic control system of reciprocating motion.In main fluid power system and auxiliary fluid power system, motor drives bidirectional hydraulic pump will
Liquid in one hydraulic cylinder is withdrawn and fed into working in another hydraulic cylinder repeatedly, the cylinder rod of mono- hydraulic cylinder of Lai Shixian
Rise the alternate Pumping action declined with the cylinder rod of another hydraulic cylinder.
Main fluid power system is designed, it is mainly made of motor and bidirectional hydraulic pump, predominantly two hydraulic cylinder notes
Enter or extract out oil use.Due to leakage of pipeline etc., there are the feelings that the on high-tension side oil mass of main fluid power system is inadequate
Condition.
In order to enable the movement of two oil cylinder cylinder rods while when reaching the position of setting, set auxiliary fluid power system
A part of hydraulic oil is drawn from fuel tank to supplement to high-pressure side.
In order to obtain to effective control of two hydraulic cylinders, sensor is installed respectively on two hydraulic cylinders, is monitored
The movement of hydraulic cylinder.Required information is fed back to electric control system by sensor, and electric control system is by presetting
Program judgement issue corresponding instruction, adjust the motor running shape in main fluid power system and auxiliary fluid power system
State pumps injection or extraction hydraulic oil in hydraulic cylinder by bidirectional hydraulic.
Realizing another method of above scheme is, the bidirectional hydraulic pump in main fluid power system can also be used as hydraulic
Motor uses, and the rotation axis of motor stretches out in the both ends of motor, and every side of motor reel is connected with bidirectional hydraulic pump, often
A bidirectional hydraulic pump individually injects to corresponding hydraulic cylinder and drains hydraulic oil, and fuel tank is as oil sources.When a bidirectional hydraulic pumps
When injecting hydraulic oil to a hydraulic cylinder, another hydraulic cylinder is under the action of the gravity load of institute's band, so that therein
Oil by another bidirectional hydraulic pump flow back to fuel tank, under the action of flowing back to the oil of fuel tank, this another bidirectional hydraulic pump just with
The identity of hydraulic motor rotates, and helps motor rotation, and motor drives bidirectional hydraulic pump above-mentioned, infuses to hydraulic cylinder above-mentioned
When oily, so that the torque that the cylinder rod of hydraulic cylinder rises reduces, there is energy-efficient effect.It otherwise is also the same.
It, may more than two pumping units in a small region in the pumping operation in oil field.According to such case, in master
Current divider is connected on two hydraulic fluid ports of fluid power system.The number of units setting connection current divider of pumping unit as needed shunts outlet
Quantity, the oil circuit driving interface of multiple pairs of hydraulic cylinders is connected respectively the shunting outlet of current divider, while matching in pairs
Auxiliary fluid power system is set, realizes the working effect of more pumping units.The current divider is that have multiple branch outlets and every
The pipeline component that the liquid proportional in main pipeline can be diverted to each branch outlet by valve is designed on a branch outlet.
Current divider, hydraulic cylinder, motor, bidirectional hydraulic pump and sensor are commercial product.
Figure of description
Fig. 1 is a kind of hydraulic pumping unit system block diagram of pressure complementation；
Fig. 2 is a kind of hydraulic pumping unit derivative schemes system block diagram of pressure complementation；
Fig. 3 is a kind of working principle diagram one of the hydraulic pumping unit of pressure complementation；
Fig. 4 is a kind of working principle diagram two of the hydraulic pumping unit of pressure complementation；
Fig. 5 is a kind of working principle diagram three of the hydraulic pumping unit of pressure complementation；
Fig. 6 is the assembling schematic diagram of conventional beam-pumping unit.
Specific embodiment
Embodiment 1
A kind of hydraulic pumping unit of pressure complementation, comprising: main fluid power system 1, auxiliary fluid power system 2, fuel tank 3, first
Hydraulic cylinder 4, first sensor 5, the second hydraulic cylinder 6, second sensor 7 and electric control system 8.It is characterized by:
As shown in Figure 1, the 4 pipe interface A2 of the first hydraulic cylinder of pipe interface A1 piping connection of main fluid power system 1, works as master
When the pipe interface A1 of fluid power system 1 injects highly pressurised liquid to 4 oil circuit interface A2 of the first hydraulic cylinder, the first hydraulic cylinder
4 cylinder rod rises.
The pipe interface A1 of the pipe interface A1 piping connection fuel tank 3 of first hydraulic cylinder 4.This connection there is no
Function, up and down motion oil suction or oil extraction from fuel tank 3 as hydraulic cylinder piston top.Because when hydraulic cylinder cylinder rod declines
What is leaned on is the weight of the components of hydraulic cylinder cylinder rod lower part connection, this weight is sufficient to make hydraulic cylinder cylinder rod to decline.
The triggering switch sides A1 of first sensor 5 is connected to the setting position A3 on the first hydraulic cylinder 4, first sensor
The signal of 5 signal outlet terminal A2 connection electric control system 8 receives terminals A12.
The 6 pipe interface A2 of the second hydraulic cylinder of pipe interface A2 piping connection of main fluid power system 1, when the hydraulic drive of master
When the pipe interface A2 of dynamic system 1 injects highly pressurised liquid to 6 oil circuit interface A2 of the second hydraulic cylinder, the cylinder of the second hydraulic cylinder 6
Bar rises.
The pipe interface A2 of the pipe interface A1 piping connection fuel tank 3 of second hydraulic cylinder 6.
The triggering switch sides A1 of second sensor 7 is connected to the setting position A3 on the second hydraulic cylinder 6, second sensor
The signal of 7 signal outlet terminal A2 connection electric control system 8 receives terminals A13.
The power of main fluid power system 1, the power of control and signal connection end A4 connection electric control system 8, control
And signal connection end A1.
The pipe interface A2 of the first hydraulic cylinder of oil circuit interface A1 piping connection 4 of auxiliary fluid power system 2, auxiliary liquid pressure are driven
The oil circuit interface A8 of the oil circuit interface A2 piping connection fuel tank 3 of dynamic system 2.The oil circuit interface A3 pipeline of auxiliary fluid power system 2
The pipe interface A2 of the second hydraulic cylinder 6 is connected, the power and control terminals A4 piping connection of auxiliary fluid power system 2 are electrical
The power and control terminals A11 of control system 8.
The pipe interface A1 and pipe interface A2 of the main fluid power system 1 pass in and out the pipe interface of liquid each other.
Main fluid power system 1 at work, when certain side of pipe interface A1 and pipe interface A2 lacks liquid, auxiliary hydraulic-driven system
System 2 is supplemented.
As shown in figure 3, a kind of working principle diagram one of the hydraulic pumping unit for pressure complementation, electric control system is electronic
Machine A provides the adjustment function of electrical source of power, start and stop, measurement, rotating forward, reversion, revolving speed control and power, and motor A drives two-way
Hydraulic pump is forward or reverse.When bidirectional hydraulic pump conveys hydraulic oil from hydraulic cylinder A to hydraulic cylinder B, oily pressure is pushed away
The piston upwards of hydraulic cylinder B, the cylinder rod with hydraulic cylinder B move upwards.At this moment, hydraulic cylinder B movement is to hold
Movement of the row to the oil pumping of down-hole pump, and the hydraulic oil in hydraulic cylinder A is being reduced, the cylinder rod decline in hydraulic cylinder A.Referring to
The power of the decline of cylinder rod plays the role of the gravity of polished rod eye and polished rod etc. in Fig. 6, hydraulic cylinder A.That is, hydraulic cylinder
The reduction of oil in A, other than the effect of bidirectional hydraulic pump, there are also the effects of the gravity of polished rod eye and polished rod etc..Hydraulic cylinder A
Cylinder rod when moving downward, under the action of the gravity of polished rod eye and polished rod etc., the oil of the piston lower portion of hydraulic cylinder A is that have
Pressure, this pressure is greater than pressure oily in fuel tank certainly.According to formula M=V Δ P/6.28 η m above-mentioned, if hydraulic
The difference of the pressure of the oil of the piston lower portion of the pressure and hydraulic cylinder B of the oil of the piston lower portion of oil cylinder A reduces, and in V and η m
Torque M needed for bidirectional hydraulic pump will reduce in the case where constant, and the power output of motor will reduce.In this way, hydraulic cylinder A
In cylinder rod lower part institute band components decline part potential energy be the driving upward to the cylinder rod of hydraulic cylinder B, play
Energy-efficient effect.When the direction of bidirectional hydraulic pump oil transportation changes, working effect is the same.
Motor B receives power electric and the control of electric control system, and driving bidirectional hydraulic adjusts pump operation.Due to pipeline
The phenomenon that reasons such as leakage, there are high pressure oil side low on fuel, it is exactly to play the role of oil mass supplement, institute that bidirectional hydraulic, which adjusts pump,
The hydraulic oil of supplement is drawn from fuel tank.In this way, being conducive to the cylinder rod in the cylinder rod and hydraulic cylinder B in hydraulic cylinder A
Movement reaches the position of required setting.
In order to enable the electric control system effectively operation of control bidirectional hydraulic pump in real time, in hydraulic cylinder A and hydraulic
Sensors A and sensor B are installed on oil cylinder B respectively, hydraulic cylinder A and hydraulic cylinder B operating state signal is collected, provides electric
Gas control system.Electric control system provides most suitable electric power output and control output according to pre-set operation program.
001 in Fig. 3 is electric control system, and 002 is motor A, and 003 pumps for bidirectional hydraulic, and 004 is fuel tank, and 005 is
Bidirectional hydraulic adjusts pump, and 006 is hydraulic cylinder A, and 007 is sensors A, and 008 is sensor B, and 009 is hydraulic cylinder B, and 010 is
Motor B.
Fig. 4 is a kind of working principle diagram two of the hydraulic pumping unit of pressure complementation, and the difference of this and the scheme of Fig. 3 is,
The main shaft of motor A prolongs the two sides that Shen goes out motor A, and the axis axis connection bidirectional hydraulic of one end pumps A, and the axis axis connection of the other end is double
To hydraulic pump B, axis, bidirectional hydraulic pump A and the bidirectional hydraulic pump B of motor are rotated together, and bidirectional hydraulic pumps A and bidirectional hydraulic pump
B also does hydraulic motor use.
When bidirectional hydraulic pump B from pump in fuel tank the oiling into hydraulic cylinder B when, allow the cylinder rod of hydraulic cylinder B to rise, together
When bidirectional hydraulic oil cylinder A send hydraulic oil back to fuel tank by bidirectional hydraulic pump A under gravity.At this moment bidirectional hydraulic pump
A plays the role of hydraulic motor, and the torque of output is passed to motor A, has booster action to the rotation of motor A main shaft.
Motor A can be made to contribute less to maintain the normal driving for pumping B to bidirectional hydraulic.It otherwise is also the same.
101 in Fig. 4 be electric control system, and 102 pump A for bidirectional hydraulic, and 103 be motor A, and 104 be bidirectional hydraulic
B is pumped, 105 be fuel tank, and 106 adjust pump for bidirectional hydraulic, and 107 be motor B, and 108 be hydraulic cylinder A, and 109 be sensors A,
110 be sensor B, and 111 be hydraulic cylinder B.
Embodiment 2
A kind of embodiment 2 of the hydraulic pumping unit of pressure complementation is substantially the same manner as Example 1, the difference is that:
As shown in Fig. 2, connecting in the pipeline of main fluid power system (1) and auxiliary fluid power system (2) and the first hydraulic cylinder (4)
The first current divider 9 is added between connecing.The pipe interface of the main fluid power system 1 of pipe interface A piping connection of first current divider 9
A1.Multiple first hydraulic cylinder, 4 pipe interface A2 pipelines are correspondingly connected with the distribution pipeline of multiple corresponding settings of the first current divider 9
Interface.
The triggering switch sides A1 of multiple first sensors 5 is connected respectively in the setting on multiple first hydraulic cylinders 4
Position A3, the signal outlet terminal A2 of multiple first sensors 5 are connected respectively the corresponding signal of electric control system 8
Receive terminals.
The corresponding pipe interface of the pipe interface A1 difference piping connection fuel tank 3 of multiple first hydraulic cylinders 4.
The second current divider 10 is added between main fluid power system (1) and the piping connection of the second hydraulic cylinder (6).The
The pipe interface A2 of the main fluid power system 1 of pipe interface A piping connection of two current dividers 10.Multiple second hydraulic cylinders 6 are managed
Road interface A2 pipeline is correspondingly connected with the distribution pipeline interface of the corresponding setting on the second current divider 10.
The triggering switch sides A1 of multiple second sensors 7 is connected respectively in the setting on multiple second hydraulic cylinders 6
Position A3, the signal outlet terminal A2 of multiple second sensors 7 are connected respectively the corresponding signal of electric control system 8
Receive terminals.
The pipe interface A1 of multiple second hydraulic cylinders 6 respectively corresponds corresponding pipe interface on piping connection fuel tank 3.
The pipe interface A1 of multiple auxiliary fluid power systems 2 corresponds to the pipe of multiple first hydraulic cylinders 4 of pairs of piping connection
Road interface A2.The pipe interface A3 of multiple auxiliary fluid power systems 2 corresponds to the pipe of multiple second hydraulic cylinders 6 of pairs of piping connection
Road interface A2.
The corresponding pipe interface of the pipe interface A2 difference piping connection fuel tank 3 of multiple auxiliary fluid power systems 2.It is multiple
Power, control and the signal connection end A4 of auxiliary fluid power system 2 are separately connected the corresponding power of electric control system 8, control
System and signal connection end.
The liquid flow direction of multiple distribution pipeline interfaces of first current divider 9 and multiple isocons of the second current divider 10
The liquid flow direction of road interface is opposite.
Shown in Fig. 5, it is to change to generate on the basis of Fig. 3.It realizes multipair hydraulic cylinder while alternating up and down
It moves back and forth, to realize the pumping operation of a multipair pumping unit in some areas.
The oil circuit interface at bidirectional hydraulic pump both ends is separately connected current divider A and current divider B, the shunting outlet of each current divider
Quantity be set as desired.What the shunting outlet connection of current divider A was correspondingly connected with multiple hydraulic cylinder A piston lower portions connects oil
Mouthful, the shunting outlet connection of current divider B is correspondingly connected with the oil-collecting hole of multiple hydraulic cylinder B piston lower portions.In this way, when multiple hydraulic
When the cylinder rod of oil cylinder A rises, the cylinder rod decline of multiple hydraulic cylinder B.The multiple motor B and bidirectional hydraulic tune wherein configured
Section pump, is set between every a pair of hydraulic cylinder A and hydraulic cylinder B, plays oil mass supplementary function.Set multipair sensors A
The setting position being installed on hydraulic cylinder A and hydraulic cylinder B corresponding with sensor B, signal output end are connected to electric-controlled
On the corresponding interface of system processed, the control of reaction type is carried out to the operation of multiple hydraulic cylinder A and multiple hydraulic cylinder B.
001 in Fig. 5 is electric control system, and 002 is motor A, and 003 pumps for bidirectional hydraulic, and 004 is fuel tank, and 005 is
Bidirectional hydraulic adjusts pump, and 006 is hydraulic cylinder A, and 007 is sensors A, and 008 is sensor B, and 009 is hydraulic cylinder B, and 010 is
Motor B, 011 is current divider A, and 012 is current divider B.
What the present invention was emphasized is mainly technically characterized by, and drives two hydraulic cylinders alternately to transport up and down by hydraulic function circuit
It is dynamic, generate the Pumping action of two pumping units.When the cylinder rod decline of one hydraulic cylinder, the pressure boosting of the hydraulic oil of exclusion is hydraulic
Pump is so that the cylinder rod of another hydraulic cylinder moves upwards.Hydraulic pump is reduced individually to drive needed for the cylinder rod of hydraulic cylinder moves upwards
The torque wanted has energy-efficient effect.The pumping operation of the multipair oil pumping in some areas may be implemented by adding current divider.
Claims (3)
1. a kind of hydraulic pumping unit of pressure complementation, comprising: main fluid power system (1), auxiliary fluid power system (2), fuel tank
(3), the first hydraulic cylinder (4), first sensor (5), the second hydraulic cylinder (6), second sensor (7) and electric control system
(8)；It is characterized by:
Pipe interface A1 the first hydraulic cylinder of piping connection (4) pipe interface A2 of main fluid power system (1), when the hydraulic drive of master
When the pipe interface A1 of dynamic system (1) injects highly pressurised liquid to the first hydraulic cylinder (4) oil circuit interface A2, the first hydraulic cylinder
(4) cylinder rod rises；
The pipe interface A1 of the pipe interface A1 piping connection fuel tank (3) of first hydraulic cylinder (4)；
The triggering switch sides A1 of first sensor (5) is connected to the setting position A3 on the first hydraulic cylinder (4), first sensor
(5) signal of signal outlet terminal A2 connection electric control system (8) receives terminals A12；
Pipe interface A2 the second hydraulic cylinder of piping connection (6) pipe interface A2 of main fluid power system (1), when the hydraulic drive of master
When the pipe interface A2 of dynamic system (1) injects highly pressurised liquid to the second hydraulic cylinder (6) oil circuit interface A2, the second hydraulic cylinder
(6) cylinder rod rises；
The pipe interface A2 of the pipe interface A1 piping connection fuel tank (3) of second hydraulic cylinder (6)；
The triggering switch sides A1 of second sensor (7) is connected to the setting position A3 on the second hydraulic cylinder (6), second sensor
(7) signal of signal outlet terminal A2 connection electric control system (8) receives terminals A13；
The power of main fluid power system (1) connects control, the power of signal connection end A4 connection electric control system (8) processed, control
System, signal connection end A1；
The pipe interface A2 of oil circuit interface A1 the first hydraulic cylinder of piping connection (4) of auxiliary fluid power system (2), auxiliary liquid pressure are driven
The oil circuit interface A8 of the oil circuit interface A2 piping connection fuel tank (3) of dynamic system (2)；The oil circuit interface of auxiliary fluid power system (2)
The pipe interface A2 of the second hydraulic cylinder of A3 piping connection (6), power, control and the signal wiring of auxiliary fluid power system (2)
Hold power, control and the signal terminal A11 of A4 piping connection electric control system (8)；
The pipe interface A1 and pipe interface A2 of the main fluid power system (1) pass in and out the pipe interface of liquid each other；It is main
Fluid power system (1) at work, when certain side of pipe interface A1 and pipe interface A2 lacks liquid, auxiliary hydraulic-driven system
System (2) is supplemented.
2. a kind of hydraulic pumping unit of pressure complementation according to claim 1, it is characterised in that:
It is added between main fluid power system (1) and auxiliary fluid power system (2) and the piping connection of the first hydraulic cylinder (4)
First current divider (9)；The pipe interface of the pipeline main fluid power system of main interface A piping connection (1) of first current divider (9)
A1, the pipe interface A1 and the first hydraulic oil of the shunting auxiliary fluid power system of interface A1 piping connection (2) of the first current divider (9)
The pipe interface A2 of cylinder (4)；
The second current divider (10) are added between main fluid power system (1) and the piping connection of the second hydraulic cylinder (6)；Second
The pipeline main interface A piping connection pipeline of current divider (10) connects the pipe interface A2 of main fluid power system (1), and second shunts
The pipe interface A2 of the shunting interface A1 piping connection pipeline connection the second hydraulic cylinder (6) of device (10)；
Multiple first hydraulic cylinder (4) pipe interface A2 pipelines are correspondingly connected with point of multiple corresponding settings of the first current divider (9)
Flow pipe interface；
The triggering switch sides A1 of multiple first sensors (5) is connected respectively in the setting on multiple first hydraulic cylinders (4)
The signal outlet terminal A2 of position A3, multiple first sensors (5) are connected respectively the corresponding of electric control system (8)
Signal receives terminals；
The corresponding pipe interface of pipe interface A1 difference piping connection fuel tank (3) of multiple first hydraulic cylinders (4)；
Multiple second hydraulic cylinder (6) pipe interface A2 pipelines are correspondingly connected with multiple corresponding settings on the second current divider (10)
Distribution pipeline interface；
The triggering switch sides A1 of multiple second sensors (7) is connected respectively in the setting on multiple second hydraulic cylinders (6)
The signal outlet terminal A2 of position A3, multiple second sensors (7) are connected respectively the corresponding of electric control system (8)
Signal receives terminals；
The pipe interface A1 of multiple second hydraulic cylinders (6) respectively corresponds corresponding pipe interface on piping connection fuel tank (3)；
The pipe interface A1 of multiple auxiliary fluid power systems (2) corresponds to the pipe of multiple first hydraulic cylinders (4) of pairs of piping connection
Road interface A2；The pipe interface A3 of multiple auxiliary fluid power systems (2) corresponds to multiple second hydraulic cylinders (6) of pairs of piping connection
Pipe interface A2；
The corresponding pipe interface of pipe interface A2 difference piping connection fuel tank (3) of multiple auxiliary fluid power systems (2)；It is multiple
Power, control and the signal connection end A4 of auxiliary fluid power system (2) are separately connected the corresponding dynamic of electric control system (8)
Power, control and signal connection end；
The liquid flow direction of multiple distribution pipeline interfaces of first current divider (9) and multiple isocons of the second current divider (10)
The liquid flow direction of road interface is opposite and is equal to each other.
3. a kind of hydraulic pumping unit of pressure complementation according to claim 1, it is characterised in that:
The first sensor (5) and second sensor (7) acquires the first hydraulic cylinder (4) and the second hydraulic cylinder respectively
(6) action signal feeds back to electric control system (8), so that electric control system (8) is to main fluid power system (1) and auxiliary
Fluid power system (2) implements control, adjusts the reciprocating motion shape of the first hydraulic cylinder (4) and the second hydraulic cylinder (6) dry bar
State.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811598504.2A CN109488257B (en) | 2018-12-26 | 2018-12-26 | Pressure complementary hydraulic pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811598504.2A CN109488257B (en) | 2018-12-26 | 2018-12-26 | Pressure complementary hydraulic pumping unit |
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| CN109488257B CN109488257B (en) | 2024-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417605A (en) * | 2021-07-05 | 2021-09-21 | 浙江中铭工程机械有限公司 | Hydraulic control type automatic oil pumping machine |
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