CN110422105A - A kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub - Google Patents
A kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub Download PDFInfo
- Publication number
- CN110422105A CN110422105A CN201910821534.3A CN201910821534A CN110422105A CN 110422105 A CN110422105 A CN 110422105A CN 201910821534 A CN201910821534 A CN 201910821534A CN 110422105 A CN110422105 A CN 110422105A
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- hydraulic
- control valve
- valve group
- wheel hub
- accumulator
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- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000033001 locomotion Effects 0.000 description 8
- 241000701089 Equid alphaherpesvirus 4 Species 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 230000009193 crawling Effects 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 101100371857 Caenorhabditis elegans unc-71 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012530 fluid Substances 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
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0015—Disposition of motor in, or adjacent to, traction wheel the motor being hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
The invention discloses a kind of hydraulic mixed dynamic coiled tubing work vehicles of wheel hub, it is characterized in that, including vehicle chassis, mobile rotation support platform, supporting leg, grasping system, winch, hook block, derrick, the hydraulic hybrid dynamic system of wheel hub, the hydraulic hybrid dynamic system of wheel hub includes power takeoff, hydraulic pump, hydraulic control valve group, hydraulic hub motor, accumulator.Wherein, the hydraulic pump and hydraulic control valve group, hydraulic hub motor form closed hydraulic loop, and the accumulator and hydraulic control valve group, hydraulic hub motor form open circuit, the switching of a variety of driving modes realized by controlling hydraulic control valve group.Coiled tubing work vehicle of the present invention has higher tractive force in bad working environments such as muddy road surface, abrupt slopes, while realizing that oil liquid is mixed dynamic by accumulator, and then raising vehicle economy, achievees the purpose that while improving vehicle dynamic property and economy.
Description
Technical field
The invention belongs to petroleum spy's vehicle technical fields, it more particularly relates to which a kind of wheel hub is hydraulic mixed dynamic continuous
Tube working vehicle.
Background technique
Petroleum spy vehicle has fracturing unit truck, tank car, drill truck, coiled tubing work vehicle etc., fracturing unit truck, tank car, drill truck at present
Equal petroleum spy vehicle number of turning out for work is lower, and important vehicle of the coiled tubing work vehicle as arrangement sucker rod, but also with repairing
Well function, the maintenance that each well will be fixed every year, therefore coiled tubing work vehicle become in petroleum spy vehicle using most frequency
Numerous vehicle, the economy for improving coiled tubing work vehicle can save a large amount of expenses.Field operations environment is more severe simultaneously,
Often traveling is on the low attachment road surface such as this miriness, abrupt slope, it may appear that skidding, the problems such as tractive force is insufficient, it is hydraulic using wheel hub
Technology can be integrated and be solved the above problems.
Wheel hub hydraulic technique is derived from foreign countries earliest, the AddiDrive hydraulic motor auxiliary that such as French wave Crane company releases
Drive system, the HydroDrive of made by German MAN company, RJ Reynolds Tobacco Holdings ,Inc. the vehicles such as OptiTrack on be applied.It is domestic
It starts late to the research of wheel hub hydraulic system, such as a set of wheel hub horse of Chinese patent application that publication No. is CN102358163A
Up to fluid power system, the rotation of powered belt runner hub motor is obtained from engine to realize 4 wheel driven by power takeoff, improves vehicle
Passability, compared to mechanical four-wheel drive system, hub hydraulic motor driving system has self weight small, and structure is simple and control is flexible special
Point, but only there are two types of operating modes for the system, can not adapt to operating condition complicated and changeable, and the system fuel-economizing ability is limited.Needle
To coiled tubing work vehicle driving cycle feature, designing has the hydraulic mixed dynamic continuous oil pipe operation of the wheel hub of a variety of driving modes
Vehicle coordinates the distribution of front and back wheel power, improves vehicle tractive force to the maximum extent, and by accumulator folding and unfolding energy, reaches raising
The purpose of vehicle economy.
Summary of the invention
It is hypodynamic the technical problem to be solved by the present invention is to overcome coiled tubing work vehicle to draw under bad working environments
Problem, and under the premise of guaranteeing dynamic property, vehicle economy is improved, a kind of hydraulic mixed dynamic continuous oil pipe operation of wheel hub is devised
Vehicle.
In order to solve the above technical problems, the present invention is achieved by the following technical scheme: a kind of hydraulic mixed dynamic company of wheel hub
Continuous tube working vehicle includes vehicle chassis, mobile rotation support platform, supporting leg, grasping system, winch, hook block, derrick, wheel
The hydraulic hybrid dynamic system of hub, the hydraulic hybrid dynamic system of wheel hub include power takeoff, hydraulic pump, hydraulic control valve group, hydraulic hub horse
It reaches, accumulator, wherein the hydraulic pump and hydraulic control valve group, hydraulic hub motor form closed hydraulic loop, the accumulation of energy
Device and hydraulic control valve group, hydraulic hub motor form open circuit, realize a variety of rows by control hydraulic control valve group
Sail the switching of mode.
Compared with prior art the beneficial effects of the present invention are:
1. a kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub of the present invention has a variety of driving modes, it is adapted to
Various difference operating conditions, coordinate the distribution of front and back wheel power, tractive force with higher；
2. a kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub of the present invention can use storage when engine casts anchor
The energy band runner hub hydraulic motor rotation of energy device storage, and then drive vehicle to maintenance station, outside for coiled tubing work vehicle
Operation provides safety guarantee.
3. a kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub of the present invention passes through the reasonable folding and unfolding energy of accumulator, and
Reclaiming braking energy realizes the efficient utilization of energy, improves vehicle economy.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is a kind of hydraulic mixed dynamic hydraulic hybrid dynamic system structural representation of coiled tubing work vehicle wheel hub of wheel hub of the present invention
Figure；
Fig. 2 is a kind of hydraulic mixed dynamic coiled tubing work vehicle complete vehicle structure figure of wheel hub of the present invention；
Fig. 3 is a kind of hydraulic mixed dynamic coiled tubing work vehicle hydraulic control valve group configuration picture of wheel hub of the present invention；
Fig. 4 is a kind of hydraulic mixed dynamic coiled tubing work vehicle crawling mode of energy transfer route signal of wheel hub of the present invention
Figure；
Fig. 5 is that a kind of hydraulic mixed dynamic coiled tubing work vehicle freewheel mode of energy transfer route of wheel hub of the present invention shows
It is intended to；
Fig. 6 is that a kind of hydraulic mixed dynamic coiled tubing work vehicle pump assistant mode energy transmission route of wheel hub of the present invention shows
It is intended to；
Fig. 7 is a kind of hydraulic mixed dynamic coiled tubing work vehicle accumulator assistant mode energy transmission road of wheel hub of the present invention
Line schematic diagram；
Fig. 8 is that a kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub of the present invention actively fills energy mode of energy transfer route
Schematic diagram；
Fig. 9 is a kind of hydraulic mixed dynamic coiled tubing work vehicle braking mode energy transmission route of wheel hub of the present invention
Schematic diagram；
Figure 10, which is that a kind of wheel hub of the present invention is hydraulic, mixes energy transmission route when moving coiled tubing work vehicle construction operation
Schematic diagram.
In figure: 1-engine；2-power takeoffs；3-clutches；4-transfer cases；5-hydraulic pumps；6-hydraulic control valves
Group；7-accumulators；8-hydraulic hub motors；9-speed changers；10-rear axles；11-entire car controllers；12-wheel hubs are hydraulic mixed
Dynamic system；13-vehicle chassis；14-mobile rotation support platforms；15-supporting legs；16-grasping systems；17-winches；18—
Hook block；19-derricks.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
The present invention devises a kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub, to overcome coiled tubing work vehicle severe
Hypodynamic disadvantage is drawn under environment, achievees the purpose that while improving vehicle dynamic property and economy.
Refering to fig. 1, the hydraulic hybrid dynamic system 12 of the wheel hub includes (engine 1, clutch 3, gearbox 9), power takeoff
2, hydraulic pump 5, hydraulic control valve group 6, the identical hydraulic hub motor 8 of 7,4 structures of accumulator.The output shaft of engine 1 with
2 input shaft of power takeoff is connected, and two pairs of gears is shared in power takeoff 2, engine portion sub-power is transmitted to variable by first pair of gear
Pump 5, engine portion sub-power is transmitted to transfer case 4 by another pair gear, and power is assigned to apparatus for work again and is used for by transfer case 4
Operation, 1 excess power of engine passes to rear axle 10 by clutch 3, speed changer 9, for driving rear-wheel；Variable pump 5 will be hydraulic
Oil pump is sent to hydraulic control valve group 6, and hydraulic control valve group 6 is connected with hydraulic hub motor 8, accumulator 7, when hydraulic oil pump is sent to
When hydraulic hub motor 8, hydraulic hub motor 8 drives front-drive, accumulator 7 by hydraulic control valve group 6 and hydraulic pump 5,
Wheel hub hydraulic motor 8 is connected, and can store the energy come from the transmitting of hydraulic pump 5, or wheel hub hydraulic motor 8 energizes；
11 controllable variable of entire car controller pump 5 discharge capacity, and then control hydraulic hub motor 8 revolving speed, enable front wheel rotation speed with
With rear wheel rotation speed, vehicle tractive force is improved to the maximum extent.
Referring to Fig.2, the hydraulic mixed dynamic coiled tubing work vehicle of the wheel hub, including the hydraulic hybrid dynamic system 12 of wheel hub, vehicle
Chassis 13, mobile rotation support platform 14, supporting leg 15, grasping system 16, winch 17, hook block 18, derrick 19；Engine portion
Sub-power is transmitted to mobile rotation support platform 14, supporting leg 15, grasping system 16, winch 17 and cooling by transfer case 4 respectively
Pump, mobile rotation support platform 14 control derrick 19 and move, the movement of derrick 19 include the rotary motion of derrick, luffing movement and
Translational motion is lowered into oil pipe accurately in well head by controlling the movement of derrick 19.The movement of supporting leg 15 includes supporting leg
Horizontal movement and vertical motion, when operation, support vehicle.Grasping system 16 clamps oil pipe, prevents oil pipe from falling off.17 operation of winch
When hang hook block 18 it made to sling the smooth tripping in pedestal centering body of coiled tubing, when well workover, slings coiled tubing from oil well
It extracts.The driving of mobile rotation support platform 14, supporting leg 15, grasping system 16 and winch 17 is realized by hydraulic circuit,
And it is cooled down by hydraulic circuit of the cooling pump to each apparatus for work.
Refering to Fig. 3, the switching of hydraulic 12 different working modes of hybrid dynamic system of wheel hub depends on hydraulic control valve group 6, hydraulic
Control valve group 6 includes that working connection control valve group, accumulator control valve group, pilot control valve group and hydraulic circuit switch valve group.
Working connection control valve group is controlled in vehicle traction or braking process by control two-position four-way solenoid valve CVL, CVR, FVL and is taken turns
The intervention of hub hydraulic system 12 is exited, when two-position four-way solenoid valve CVL, CVR, FVL actuation, the intervention of wheel hub hydraulic system,
When two-position four-way solenoid valve CVL, CVR, FVL reset, wheel hub hydraulic system is exited；When vehicle encounters shift or emergency braking etc.
Situation and when needing of short duration cutting hydraulic system power, control solenoid valve BPV and 3-position-3-way hydraulic control valve FV actuation；Accumulation of energy
Accumulator filling liquid or tapping can be switched in device control valve group, is filled by control solenoid valve EHV1 and EHV2 realization accumulator, tapping function
It can convert and fill, tapping flow control, when solenoid valve EHV1 actuation, to 7 filling liquid of accumulator, when solenoid valve EHV2 actuation
When, 7 tapping of accumulator is filled, tapping flow control is realized by control solenoid valve EHV1 and EHV2 spool moving distance；Guide's control
Valve group processed controls solenoid valve during the hydraulic hybrid dynamic system 12 of wheel hub actively fills energy to the progress of accumulator 7 using hydraulic pump 5
EV1 disconnects the connection of slippage pump and working connection control valve group, and working connection actuation is avoided to cause filling liquid flow that can not flow to accumulator
7。
It, can be real in hydraulic 12 course of work of hybrid dynamic system of wheel hub according to the different conducting connection types of hydraulic control valve group
Existing closed hydraulic loop transmission is driven both of which with open circuit:
Closed hydraulic loop drive path: engine 1 → power takeoff, 2 → variable pump, 5 → hydraulic control valve group 6 → hydraulic wheel
Hub motor 8, power-assisted and auxiliary drive suitable for low attachment road surface.
Open circuit drive path: accumulator 7 → hydraulic control, 6 → hydraulic hub of valve group motor 8 is suitable for high attached
The auxiliary drive on road surface, while Brake energy recovery is realized by accumulator.
Hydraulic circuit switches valve group by control solenoid valve EHV3 and EHV4, realizes between open type, closed hydraulic loop
Switching, as solenoid valve EHV3 and EHV4 actuation, hydraulic system is switched to open circuit by closed hydraulic loop.
According to the demand of coiled tubing work vehicle driving cycle, the hydraulic mixed dynamic coiled tubing work vehicle of wheel hub travels mould substantially
Formula is divided into: crawling mode (CDM), freewheel mode (FWM), pump assistant mode (ADM), accumulator assistant mode (AADM), master
Dynamic fill can mode (ACM) and braking mode (RGB).Above-mentioned each basic driving mode and each solenoid valve of hydraulic control valve group are made
Dynamic corresponding relationship, as shown in table 1.
Solenoid valve actuation situation in each driving mode hydraulic control valve group of table 1
| Solenoid valve | CVL | EV1 | CVR | BPV | EHV1 | EHV2 | EHV3 | EHV4 |
| Control signal | VS1 | VS2 | VS3 | VS4 | VS5 | VS6 | VS7 | VS8 |
| CDM | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
| FWM | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| ADM | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| AADM | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 |
| ACM | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 |
| RGB | 0 | / | 0 | 0 | 1 | 0 | / | / |
(note: 1- indicates solenoid valve actuation；0- indicates not actuation)
Refering to Fig. 4, in crawling mode, engine 1 and hydraulic pump 5 do not work, and vehicle is energized by accumulator 7,7 He of accumulator
Hydraulic control valve group 6, hydraulic hub motor 8 form open circuit, i.e. the hydraulic oil of storage is passed through hydraulic control by accumulator 7
Valve group 6 processed passes to hydraulic hub motor 8, is travelled by 8 rotate driving vehicle of hydraulic hub motor.At this time in hydraulic control valve group 6,
Solenoid valve CVL, CVR, EHV2 actuation, solenoid valve EV1, BPV, EHV1, EHV3, EHV4 not actuation.
The unlatching when engine casts anchor of crawling mode, speed of operation is lower, and vehicle travel speed is by accumulator tapping rate
It determines, the max. speed under crawling mode can be calculated according to formula (1).
nf,max=Qmax·1000/2/Vm (1)
In formula, QmaxIndicate accumulator bleeder valve maximum stream flow, VmIndicate wheel hub hydraulic motor displacement, nf,maxIndicate crawling
Max. speed under mode.
Refering to Fig. 5, in freewheel mode, rear-wheel traveling is operated alone in engine 1, and engine power is through clutch 3, speed change
Device 9 reaches rear axle 10, and then drives rear-wheel.The hydraulic hybrid dynamic system 12 of this mode lower hub does not start, vehicle running state and biography
System vehicle is consistent, and is suitble to open the mode when driving in normal road.
Refering to Fig. 6, in pump assistant mode, engine power a part reaches rear axle 10 by clutch 3, speed changer 9, drives
Dynamic rear wheel, engine another part power reach hydraulic pump 5, hydraulic pump 5 and hydraulic control valve group 6, liquid by power takeoff 2
Pressure hub motor 8 forms closed hydraulic loop, and power is reached hydraulic hub motor 8 by hydraulic control valve group 6 by hydraulic pump 5,
Vehicle becomes a11wheel drive.At this time in hydraulic control valve group 6, solenoid valve CVL, CVR actuation, solenoid valve EV1, BPV, EHV1,
EHV2, EHV3, EHV4 not actuation.Entire car controller 11 can control the discharge capacity of hydraulic pump 5, and front-wheel wheel speed is enable to follow rear wheel rotation
Speed improves vehicle tractive force to the maximum extent, is suitble to open the mode at the low attachment road surface such as muddy mountainous region.
Refering to Fig. 7, in accumulator assistant mode, engine whole power reaches rear axle 10 by clutch 3, speed changer 9,
Rear wheel is driven, hydraulic pump 5 dallies, and accumulator 7 and hydraulic control valve group 6, hydraulic hub motor 8 constitute open hydraulic and return
Road, accumulator 7 are a large amount of energy supplies in short-term of hydraulic hub motor 8.At this time in hydraulic control valve group 6, solenoid valve CVL, EV1, CVR,
EHV2, EHV3, EHV4 actuation, solenoid valve BPV, EHV1 not actuation are suitble to the needs such as be climbed or accelerated on height attachment road surface
The mode is opened when larger power regime is provided in short-term.
Refering to Fig. 8, energy mode is actively being filled, engine power a part reaches rear axle 10 by clutch 3, speed changer 9,
Rear wheel is driven, engine another part power reaches hydraulic pump 5 by power takeoff 2, and hydraulic pump 5 passes through hydraulic control valve group
6 fill energy to accumulator 7, and hydraulic hub motor 8 does not work.At this time in hydraulic control valve group 6, solenoid valve EV1, EHV1, EHV3,
EHV4 actuation, solenoid valve CVL, CVR, BPV, EHV2 not actuation.Accumulator actively fill is able to achieve engine working point adjusting, also for
Power running energy reserve is suitble to open the mode in preferable road traveling.
Driven by engine variable pump 5 is 7 filling liquid of accumulator, and real variable pump discharge is provided by slippage pump in fuel tank oil suction,
Hydraulic pump discharge should be controlled not above repairing pumpage.
Refering to Fig. 9, in braking mode, rear axle 10 passes to regenerating braking energy by speed changer 9, clutch 3
Second output shaft of engine 1, engine 1 drives slippage pump from fuel tank oil suction and to be delivered to variable pump 5, and then by variable pump 5
Regenerative braking capability is realized to 7 filling liquid of accumulator by hydraulic control valve group 6.At this time in hydraulic control valve group 6, solenoid valve EHV1
Actuation, solenoid valve CVL, CVR, BPV, EHV2 not actuation.One section of pedal travel is chosen for pure in brake pedal hollow travel stage
Regenerative braking crosses the parallel braking scheme that " regenerative braking+air-pressure brake " is then used after brake pedal hollow travel stage.
Refering to fig. 10, when coiled tubing work vehicle stops operation, clutch 3 is disconnected, and the hydraulic hybrid dynamic system 12 of wheel hub is not
Starting, hydraulic pump 5 dally.Engine power all passes through power takeoff 2 and passes to transfer case 4, and power is transmitted to by transfer case 4 respectively again
Mobile rotation support platform hydraulic circuit hydraulic pump, supporting leg hydraulic circuit hydraulic pump, grasping system hydraulic circuit hydraulic pump, winch
Hydraulic circuit hydraulic pump and cooling pump.
Claims (1)
1. a kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub, which is characterized in that flat including vehicle chassis, mobile rotation support
The hydraulic hybrid dynamic system of platform, supporting leg, grasping system, winch, hook block, derrick, wheel hub, the hydraulic hybrid dynamic system of wheel hub include
Power takeoff, hydraulic pump, hydraulic control valve group, hydraulic hub motor, accumulator, wherein the hydraulic pump and hydraulic control valve group,
Hydraulic hub motor forms closed hydraulic loop, and the accumulator and hydraulic control valve group, hydraulic hub motor form open type liquid
Road is pushed back, the switching of a variety of driving modes is realized by controlling hydraulic control valve group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821534.3A CN110422105A (en) | 2019-09-02 | 2019-09-02 | A kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821534.3A CN110422105A (en) | 2019-09-02 | 2019-09-02 | A kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub |
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| CN110422105A true CN110422105A (en) | 2019-11-08 |
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| CN201910821534.3A Pending CN110422105A (en) | 2019-09-02 | 2019-09-02 | A kind of hydraulic mixed dynamic coiled tubing work vehicle of wheel hub |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006691A (en) * | 2021-04-19 | 2021-06-22 | 高邮浩翔石油机械有限公司 | Emergency and power compensation system and method for hydraulic energy storage vehicle-mounted drilling and repairing machine |
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| CN103568810A (en) * | 2013-11-19 | 2014-02-12 | 中国第一汽车股份有限公司 | Energy recyclable auxiliary hub motor hydraulic driving system and control method thereof |
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Application publication date: 20191108 |