CN108679021A - A kind of monorail crane locomotive and its vibration hydraulic system - Google Patents
A kind of monorail crane locomotive and its vibration hydraulic system Download PDFInfo
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- CN108679021A CN108679021A CN201810928339.6A CN201810928339A CN108679021A CN 108679021 A CN108679021 A CN 108679021A CN 201810928339 A CN201810928339 A CN 201810928339A CN 108679021 A CN108679021 A CN 108679021A
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- hydraulic system
- oil
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 53
- 239000003921 oil Substances 0.000 claims description 65
- 239000000446 fuel Substances 0.000 claims description 33
- 239000010720 hydraulic oil Substances 0.000 claims description 23
- 230000006870 function Effects 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000006837 decompression Effects 0.000 claims 1
- 230000001965 increasing effect Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 230000008450 motivation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- 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
- F15B2211/255—Flow control functions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a kind of vibration hydraulic systems of monorail crane locomotive, including explosion-proof engine and to drive the running motor of locomotive operation, further include being set between explosion-proof engine and running motor, to realize the first plunger pump and the second plunger pump of the flow-rate adjustment in vibration hydraulic system, the actuator port of the first plunger pump is in parallel with the actuator port of the second plunger pump and is connected with the actuator port of running motor.The invention also discloses a kind of monorail crane locomotives including above-mentioned vibration hydraulic system.Above-mentioned vibration hydraulic system can increase the flow of hydraulic system under the premise of not changing engine speed and not increasing plunger pumpage, to meet the design requirement of explosion-proof engine monorail crane locomotive heavy-duty.
Description
Technical field
The present invention relates to hydraulic transmission technology field, more particularly to a kind of vibration hydraulic system.The invention further relates to one kind
Monorail crane locomotive with above-mentioned vibration hydraulic system.
Background technology
With the development of underground assistant conveyance equipment technology, monorail crane Stady On The Auxiliary Transportation Systems are applied to coal more and more
Under mine, wherein heavy-duty is an important trend of explosion-proof engine monorail crane locomotive, suitable in some conditions
Modernization large-scale mine in applied.
The monorail crane locomotive of heavy explosion-proof engine is a new architecture in monorail crane Stady On The Auxiliary Transportation Systems, the monorail crane
The hauling capacity of a locomotive is big, climbing capacity is strong, and complete machine can have 10 driving units, is mainly used for coal mine underground hydraulic support frame, mines
The transport of the large size fully mechanized mining class equipment such as machine, elevating conveyor.Usually, the vibration hydraulic system one of explosion-proof engine monorail crane locomotive
As use single plunger pump fuel system, existing engine monorail crane vibration hydraulic system generally existing driving unit quantity
Less, tractive force is small, poor reliability, big high failure rate and maintenance difficulty the shortcomings of, the fuel system of single plunger pump is difficult to meet
Demand of the vibration hydraulic system of heavy-duty engine monorail crane locomotive to flow, and then be difficult to meet explosion-proof engine single-rail crane
The development trend of vehicle heavy-duty.
Therefore, how under the premise of not changing engine speed and not increasing hydraulic pump discharge, meet explosion-proof start
The design requirement of machine monorail crane locomotive heavy-duty is a technical problem that technical personnel in the field need to solve at present.
Invention content
The object of the present invention is to provide a kind of vibration hydraulic system, which can turn not changing engine
Speed and under the premise of not increasing plunger pumpage, increases the flow of hydraulic system, to meet explosion-proof engine single-rail crane
The design requirement of vehicle heavy-duty.It is a further object of the present invention to provide a kind of single-rail cranes including above-mentioned vibration hydraulic system
Vehicle.
To achieve the above object, the present invention provides a kind of vibration hydraulic system of monorail crane locomotive, including explosion-proof engine
And driving the running motor of locomotive operation, further include be set between the explosion-proof engine and the running motor, with
Realize the first plunger pump and the second plunger pump of the flow-rate adjustment in vibration hydraulic system, the actuator port of first plunger pump
It is in parallel with the actuator port of second plunger pump and be connected with the actuator port of the running motor.
Preferably, the explosion-proof engine be connected with first plunger pump, second plunger pump by transfer case, with
Drive first plunger pump and the second plunger oil pump feed.
Preferably, further include being connected with first plunger pump and second plunger pump, making first plunger
Pump and second plunger pump are with preset flow and preset pressure to the control module of the running motor fuel feeding, the control
Molding block includes flame-proof type electricity proportional pressure-reducing valve, is connected with the flame-proof type electricity proportional pressure-reducing valve and to realize that electro-hydraulic signal turns
It changes with the servo valve of hydraulic regulation, be capable of the DA control valves of control system pressure and to realize the power valve of overload protection.
Preferably, the explosion-proof engine has the startup valve group for opening and closing the explosion-proof engine, first plunger pump
The first oil outlet be connected with the oil inlet for starting valve group, the second oil outlet of first plunger pump and the power valve
Oil inlet be connected to realize overload protection；Further include becoming to drive control valve group, making the clamping of driving wheel grip track web
Oil cylinder and to buffer the clamping valve group of the clamping cylinder charge oil pressure, the first oil outlet of second plunger pump and institute
State become drive control valve group oil inlet be connected, the second oil outlet of second plunger pump with it is described clamp valve group oil inlet with
And the oil inlet of the clamping cylinder is connected.
The oil supply loop being preferably located between first plunger pump, second plunger pump and the running motor
Equipped with flushing valve and hydraulic oil radiator, the hydraulic oil in oil supply loop can be guided to the hydraulic oil by the flushing valve
Radiator is to realize heat dissipation.
Preferably, further include with first plunger pump coaxial arrangement, to the first of the first plunger pump repairing
Slippage pump and with second plunger pump coaxial arrangement, to the second slippage pump of the second plunger pump repairing.
Preferably, first slippage pump, which is equipped with, returns to limit first slippage pump with the first plunger pump repairing
First feed circuit overflow valve of the pressure in road, second slippage pump be equipped with to limit second slippage pump with it is described
Second feed circuit overflow valve of the pressure in the second plunger pump feed circuit.
It is preferably located between first slippage pump and first plunger pump and is equipped with to prevent in hydraulic oil
Grain flow to the first filter of first plunger pump, is equipped with and uses between second slippage pump and second plunger pump
To prevent the particle in hydraulic oil from flowing to the second filter of second plunger pump.
Preferably, further include being co-axially mounted with first plunger pump, to the auxiliary work(of auxiliary functions fuel feeding
It can pump.
The present invention also provides a kind of monorail crane locomotives, including vibration hydraulic system described in any one of the above embodiments.
Relative to above-mentioned background technology, the present invention is for heavy-duty explosion-proof engine monorail crane locomotive vibration hydraulic system
Difference requires, and the mode for devising two parallel pumps is the driving unit fuel feeding of monorail crane locomotive, no longer by single plunger pump fuel feeding,
But use the fuel system of two parallel pumps.Usually, it is used in explosion-proof engine monorail crane locomotive vibration hydraulic system
The fuel system of single plunger pump, when the power for not changing engine, the simple rotating speed for improving engine, due to being now subjected to hair
The influence of motivation technology works as increase it is difficult to meet demand of the vibration hydraulic system to flow of explosion-proof engine monorail crane locomotive
The discharge capacity of hydraulic pump, while when increase the power of engine, due to being limited by overall volume and dead weight, it is also difficult to
Meet demand of the vibration hydraulic system to flow of explosion-proof engine monorail crane locomotive to a certain extent；Therefore, do not changing
Explosion-proof engine rate performance and under the premise of not increasing plunger pumpage, increases row using the fuel system of two parallel pumps
The flow for walking hydraulic system is necessary.
Specifically, the first plunger pump and second are set between the explosion-proof engine of vibration hydraulic system and running motor
Plunger pump, wherein the actuator port of the first plunger pump is in parallel with the actuator port of the second plunger pump and work with running motor
Hydraulic fluid port is connected.So, the flow of vibration hydraulic system can be increased, and then heavy-duty explosion-proof engine single track can be met
Demand of the loop wheel machine vehicle vibration hydraulic system to flow；Compared to the vibration hydraulic system of single plunger pump, using two parallel pumps fuel feeding
Monorail crane vibration hydraulic system have many advantages, such as good reliability, it is safe, become that drive switching steady, easy to operate, and in phase
Under the premise of flow, two parallel pumps fuel feeding more single oil pump feed mode rubs when having high hydraulic pump limit speed, high-speed cruising
The advantages that calorific value is few, work efficiency is high, service life is long, repair facilitates with replacement.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of monorail crane locomotive vibration hydraulic system signal of two parallel pumps fuel feeding disclosed by the embodiments of the present invention
Figure.
Wherein：
1- flame-proof type electricity proportional pressure-reducing valve, 2- servo valves, 3- transfer cases, the first plunger pumps of 4-, 5-DA control valves, 6- are explosion-proof
Engine, the second plunger pumps of 7-, the first slippage pumps of 8-, 9- miscellaneous functions pump, the second slippage pumps of 10-, 111- cooling water radiators
Fan driving motor, 112- charge air coolers fan driving motor, 113- hydraulic oil radiators fan driving motor, 114- generators drive
Dynamic motor, 12- hydraulic oil radiators, the first feed circuits of 131- overflow valve, the second feed circuits of 132- overflow valve, 133- auxiliary
Circuit overflow valve, the first starting-up later times of 134- overflow valve, the second starting-up later times of 135- overflow valve, 14- generators, 15- manual pumps,
16- hydraulic launch motors, 17- running motors, 18- clamping cylinders, 19- flushing valves, 20- power valves, 211- Throttle Opening Controls oil cylinder,
212- air inlet stop valves control cylinder, 221- starting-up later times check valve, 222- subsidiary loops check valve, 23- shuttle valves, 241- first
Throttle valve, 242- second throttle, 251- first manuals reversal valve, the second hand-operated direction valves of 252-, the commutation of 253- manual shut-downs
Valve, the first flame-proof types of 261- solenoid directional control valve, the second flame-proof types of 262- solenoid directional control valve, the first pilot operated directional control valves of 271-, 272-
Second pilot operated directional control valve, 273- thirds pilot operated directional control valve, 28- mechanical switchings valve, 29- first filters, 30- second are filtered
Device, the first accumulators of 31-, the second accumulators of 32-, 33- pressure gauges, 34-, which become, drives control valve group, 35- clampings valve group, 36- startups
Valve group, 37- speed-limiting protective devices, the external circuits 38-, 39- lift by crane hydraulic circuit.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of vibration hydraulic system, which can turn not changing engine
Speed and under the premise of not increasing plunger pumpage, increases the flow of vibration hydraulic system, to meet explosion-proof engine single track
The design requirement of loop wheel machine vehicle heavy-duty.Another core of the present invention is to provide a kind of monorail crane including above-mentioned vibration hydraulic system
Locomotive.
In order to make those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings and it is embodied
The present invention is described in further detail for mode.
The hydraulic pressure referring to FIG. 1, monorail crane locomotive that Fig. 1 is a kind of two parallel pumps fuel feeding disclosed by the embodiments of the present invention is walked
System schematic.
In embodiment provided by the invention, the vibration hydraulic system of explosion-proof engine monorail crane locomotive includes for hydraulic pressure system
System provides the explosion-proof engine 6 of power and the driving unit to drive monorail crane locomotive to run, wherein driving unit includes
Drive the running motor 17 and make two of driving unit to have one between friction driving roller and rail web that driving wheel is walked
The clamping cylinder 18 of clamp clamp force；Under the driving of explosion-proof engine 6, the row of the plunger pump of vibration hydraulic system to driving unit
17 fuel feeding of motor is walked, to drive monorail crane locomotive towards some direction running, oil cylinder 18 is simultaneously clamped on and obtains fuel feeding so that
The friction driving roller grip track web of rail web both sides realizes the walking function of locomotive under the action of frictional force.
In above process, the vibration hydraulic system of heavy monorail crane locomotive plays to driving unit fuel feeding and adjusts flow
To ensure that monorail crane locomotive obtains the effect of enough tractive force and climbing capacity, and it may insure single track in the process of moving
Hang stability and the safety of locomotive operation.The vibration hydraulic system further includes the first plunger pump 4 and the second plunger pump 7, and first
Plunger pump 4 and the second plunger pump 7 are arranged between explosion-proof engine 6 and running motor 17, for adjusting vibration hydraulic system
Fuel delivery includes the fuel delivery to driving unit and other oil feed lines, by the actuator port and the second column of the first plunger pump 4
The actuator port of plug pump 7 is in parallel, and passes through hydraulic joint body and hydraulic hose assembly and the running motor 17 being connected in parallel
Actuator port is connected.
Under the premise of not changing 6 rate performance of explosion-proof engine and not increasing plunger pumpage, pass through the first plunger
The fuel system of 7 parallel connection of pump 4 and the second plunger pump, can increase the flow of vibration hydraulic system, and then can meet heavy-duty
Demand of the explosion-proof engine monorail crane locomotive vibration hydraulic system to flow, and the inside of the first plunger pump 4 and the second plunger pump 7
It is provided with pressure adjusting function, hydraulic oil may be implemented stablizes output, to ensure the stability of vibration hydraulic system fuel feeding
Energy.
In the present embodiment, explosion-proof engine 6 is connected by transfer case 3 with the first plunger pump 4, the second plunger pump 7, explosion-proof
The power of engine 6 respectively drives 7 fuel feeding of the first plunger pump 4 and the second plunger pump after the distribution of transfer case 3, so, profit
The output rotating speed of explosion-proof engine 6 is improved and is divided into two a little with the effect of transfer case 3, by one big pump by two small pumps
It substitutes, to reduce friction of motion and the calorific value of pump to a certain extent, improves working efficiency.
It is effective in order to ensure the safe operation of monorail crane locomotive, realize the stepless speed regulation of plunger pump, the first plunger pump 4 and
Two plunger pumps 7 share a set of control module, which is connected with the first plunger pump 4 and the second plunger pump 7 and can make
One plunger pump 4 and the second plunger pump 7 are with preset flow and preset pressure to 17 fuel feeding of running motor, preset flow and pre-
If pressure refers on the basis of meeting heavy monorail crane locomotive job requirement so that vibration hydraulic system safe and stable operation
Working flow and operating pressure.
Control module includes flame-proof type electricity proportional pressure-reducing valve 1, servo valve 2, DA control valves 5 and power valve 20；Anti- outburst
After motivation 6 normally starts, sending out instruction to electric-control system by monorail crane locomotive control handle makes flame-proof type electricity proportional pressure-reducing valve 1
YA1 or YA2 obtain electric, then through servo valve 2, conversion and the hydraulic regulation function of electro-hydraulic signal are realized by servo valve 2, so as to
To switch the angle of inclination and direction of the swash plate of plunger pump, that is to say, that can make the first plunger pump 4 and the second plunger pump 7
Swash plate tilt certain angle and with certain flow to 17 fuel feeding of running motor to some direction.Wherein, flame-proof type electricity
The both ends Y1 and Y2 of proportional pressure-reducing valve 1 are connected with servo valve 2 respectively, servo valve 2 respectively with the first plunger pump 4, the second plunger pump 7
It is connected；Meanwhile plunger pump is also associated with DA control valves 5 and power valve 20, DA control valves 5 can be according to the uninterrupted of valve inlet
The control pressure directly proportional to 6 rotating speed of explosion-proof engine is generated, the setting of power valve 20 is for preventing 6 mistake of explosion-proof engine
It carries.In vibration hydraulic system, the discharge capacity of plunger pump is stepless variable on each flow direction, and by engine speed
With the influence of system pressure.
Certainly, according to actual needs, the control module being connect with the first plunger pump 4 and the second plunger pump 7 can have other
Different set-up modes, premise is that meeting plunger pump adjusts flow, the function of safe and stable operation herein herein will no longer
Expansion.
Specifically, explosion-proof engine 6 has the startup valve group 36 for opening and closing 6 function of explosion-proof engine, starts valve group 36 and wrap
Include the first accumulator 31, first manual reversal valve 251, the second hand-operated direction valve 252, manual shut-down reversal valve 253, the first flame proof
Type solenoid directional control valve 261, the second starting-up later time overflow valve 135, shuttle valve 23, hydraulic launch motor 16, explosion-proof engine throttle control
Liquefaction cylinder 211 and air inlet stop valve control cylinder 212.First oil outlet of the first plunger pump 4, i.e. G mouthfuls, through check valve with open
The oil inlet of dynamic valve group 36 is connected to realize to the fuel feeding for starting valve group 36, meanwhile, the G mouths of the first plunger pump 4 are also returned with outside
Road 38, including the oil inlet in external lifting circuit, brake circuit are connected to realize the function of 38 fuel feeding of external circuit, the first column
Second oil outlet of plug pump 4, i.e., be connected with the oil inlet of power valve 20 to realize overload protection through check valve by MH mouthfuls.
Vibration hydraulic system further includes becoming to drive control valve group 34, clamping cylinder 18 and clamping valve group 35, wherein change controls
Valve group 34 processed includes the second flame-proof type solenoid directional control valve 262, the first pilot operated directional control valve 271 and the second pilot operated directional control valve 272, folder
Locking oil cylinder 18 makes have certain clamping force so that monorail crane locomotive between two friction driving rollers of driving unit and track web
It is run by the frictional force of driving wheel and track web, clamps valve group 35 and be provided with 32 Absorbing Fluctuation of the second accumulator and hydraulic punch
It hits, to the purpose realized systems stabilisation, protect 18 oil supply loop of clamping cylinder；First oil outlet of the second plunger pump 7, i.e. G
Mouthful, it is connected with the oil inlet for driving control valve group 34 is become through check valve, realizes that system can be according to reality by using the mode of hydraulic control
Working condition requirement carries out the steady switching of different groups of driving units combination driving, for example, can carry out 4 wheel driven, five be driven to the flat of ten drives
Steady switching；Second oil outlet of the second plunger pump 7, i.e. MH mouthfuls, through check valve and first throttle valve 241 with clamp valve group 35 into
The oil inlet of hydraulic fluid port and clamping cylinder 18 is connected, by the pressure real-time delivery of 7 actuator port of the second plunger pump to clamping valve group
35 and clamping cylinder 18, to realize that clamping force can be automatically adjusted with the pulsation of walking hydraulic system working pressure.
In order to achievement unit liquid separation pressure oil heat sinking function to protect oil supply loop, in the first plunger pump 4, the second plunger pump
Flushing valve 19 and hydraulic oil radiator 12 are set in the oil supply loop between 7 and running motor 17；Specifically, in the first column
Flushing valve 19 is set between actuator port A, the actuator port B and actuator port A, the actuator port B of the second plunger pump 7 of plug pump 4
And the high temperature hydraulic oil in oil supply loop can be distributed a part and enter hydraulic oil by hydraulic oil radiator 12, flushing valve 19
Radiator 12 radiates.
On the basis of proper use of closed type hydraulic pump, which also by external feed circuit, realizes anti-
The functions such as the cooling system of motivation 6, the heat dissipation of gas handling system and hydraulic system and filtering are broken out, and realize the steady of system operation
Qualitative and continuity.Vibration hydraulic system is by being arranged slippage pump respectively to the low-pressure side of the first plunger pump 4 and the second plunger pump 7
Repairing, specifically, including the first slippage pump 8 and the second slippage pump 10, wherein the first slippage pump 8 and the first plunger pump 4 are coaxial
It is arranged and can be to 4 repairing of the first plunger pump, the second slippage pump 10 and the second plunger pump 7 be coaxially disposed and to the second plunger pumps 7
Repairing.
In order to optimize above-described embodiment, the oil outlet of the first slippage pump 8 is equipped with the first feed circuit overflow valve 131, and first
Feed circuit overflow valve 131 can limit the pressure in 4 feed circuit of the first slippage pump 8 and the first plunger pump, further, the
The oil outlet of one slippage pump 8 is driven by hydraulic joint body and hydraulic hose assembly and the hydraulic oil radiator fan being cascaded
The actuator port of dynamic motor 113 and the actuator port of generator drive motor 114 are connected, and are filtered through first filter 29,
It is connected with the oil compensation pressure entrance Fa of the first plunger pump 4, to realize the external repairing of the first plunger pump 4；Wherein, the first mistake
Filter 29 can prevent the impurity particle in hydraulic oil from flowing to the first plunger pump 4 to influence the stabilization of system operation with it is smooth.
In addition, in order to realize the regulatory function of hydraulic oil heat dissipation effect, in the oil supply loop of hydraulic oil radiator fan driving motor 113
Middle setting second throttle 242 connected in parallel.
Correspondingly, the oil outlet of the second slippage pump 10 is equipped with the second feed circuit overflow valve 132, the second feed circuit overflow
Valve 132 can limit the pressure in 7 feed circuit of the second slippage pump 10 and the second plunger pump, further, the second slippage pump 10
The oil outlet cooling water radiator fan driving motor 111 that passes through hydraulic joint body and hydraulic hose assembly and be cascaded
Actuator port and charge air cooler fan driving motor 112 actuator port be connected, and through the second filter 30 filter, with second
The oil compensation pressure entrance Fa of plunger pump 7 is connected, to realize the external repairing of the second plunger pump 7；Wherein, the second filter 30
Can prevent the impurity particle in hydraulic oil from flowing to the second plunger pump 7 to influence the stabilization of system operation with it is smooth.
Certainly, according to actual needs, the first slippage pump 8 can also have other different setting sides from the second slippage pump 10
Formula, premise is that meeting above-mentioned repairing function and the safety and stablization of feed circuit operation；In addition, oil supply loop and
The connection of various functions valve can refer to existing associated specifications, herein herein will not be reinflated.
More particularly, vibration hydraulic system is additionally provided with miscellaneous function pump 9, and miscellaneous function pump 9 and the first plunger pump 4 are same
Axis is installed, and the oil outlet of miscellaneous function pump 9 is equipped with subsidiary loop overflow valve 133 to limit charge oil pressure, and may be implemented to list
Each auxiliary functions of rail loop wheel machine vehicle vibration hydraulic system, including brake release circuit, Clamping Circuit, driving switching circuit, rise
Hang the function of circuit and accumulator charging loop fuel feeding；In addition, miscellaneous function pump 9 through subsidiary loop check valve 222 to clamping
18 fuel feeding of valve group 35 and clamping cylinder, to be further ensured that the clamping force between driving wheel and track web.
On the basis of the above, heavy monorail crane locomotive is before first time starts, by all commutations of vibration hydraulic system
Vavle switching to position shown in FIG. 1, the i.e. left position of reversal valve, and by manual pump 15 in the way of artificial pump oil by hydraulic oil
Activated circuit check valve 221 and 251 left position of first manual reversal valve are delivered to the first accumulator 31, and by the first starting-up later time
Overflow valve 134 limits the pump oil pressure of manual pump 15, and the filling liquid of the first accumulator 31 is limited by the second starting-up later time overflow valve 135
Pressure, after the indicating value of pressure gauge 33 reaches predetermined pressure, when pulling the handle of the second hand-operated direction valve 252 and continuing one section
Between, then the left position Jing Guo the second hand-operated direction valve 252 and shuttle valve 23 enter anti-outburst to the high pressure liquid pressure oil in the first accumulator 31
In the Throttle Opening Control oil cylinder 211 and air inlet stop valve control cylinder 212 of motivation 6, by the throttle and intake valve of explosion-proof engine 6
It opens, meanwhile, left position of the high pressure liquid pressure oil also through the second hand-operated direction valve 252 enters the actuator port of hydraulic launch motor 16,
And hydraulic launch motor 16 is driven to rotate, hydraulic launch motor 16 is then nibbled by its front end gear and the gear ring of explosion-proof engine 6
It closes, to drive explosion-proof engine 6 to rotate.
Explosion-proof engine 6 drives each hydraulic pump to rotate through transfer case 3 simultaneously, and the oil outlet of miscellaneous function pump 9 is to first
31 fuel feeding of accumulator allows hydraulic launch motor 16 that explosion-proof engine 6 to be driven persistently to rotate a period of time, the first slippage pump 8
Oil outlet to 114 fuel feeding of generator drive motor and drive its rotation, generator drive motor 114 drive 14 work of generator
Make, generator 14 then exports electric energy and gives monorail crane electric-control system, and electric-control system, which then sends instruction, makes the first flame-proof type electromagnetic switch
The electromagnet of valve 261 obtains electric, and the first flame-proof type solenoid directional control valve 261 switches to left position, the high-pressure and hydraulic in the first accumulator 31
It is oily then shuttle valve 23 is entered by the left position of the first flame-proof type solenoid directional control valve 261 and shuttle valve 23 is switched into left position, and through shuttle valve
23 left positions enter in the Throttle Opening Control oil cylinder 211 and air inlet stop valve control cylinder 212 of explosion-proof engine 6, make Throttle Opening Control
Oil cylinder 211 and air inlet stop valve control cylinder 212 continue, in operating position, to make explosion-proof engine 6 normally start up, at this time just
The handle of the second hand-operated direction valve 252 can be unclamped.
In order to avoid misoperation causes safety accident, vibration hydraulic system is additionally provided with monorail crane locomotive walking and lifting behaviour
The interlock function of work may be implemented that when locomotive walking lifting operation cannot be carried out, and when lifting operation, locomotive can not walk；Specifically
Ground is said, third pilot operated directional control valve has been arranged in series on the oil supply loop of 7 control module of the first plunger pump 4 and the second plunger pump
273 and mechanical switching valve 28, wherein when carrying out monorail crane locomotive walking operation, third pilot operated directional control valve 273 is in just
Normal operating position, i.e. left position；When carrying out lifting operation, third pilot operated directional control valve 273 is received from lifting hydraulic circuit 39
Signal and switch to the right position of reversal valve, to cut off the fuel feeding in monorail crane locomotive travelling control circuit.Mechanical switching valve
28 prevent locomotive from occurring exceeding the speed limit in non-normal working and cause serious accident together with speed-limiting protective device 37.
In addition, there are two types of the blankets of locomotive for vibration hydraulic system setting, one is manipulated using locomotive driving cabin
Power key on platform realizes that locomotive is flame-out by power-down mode and shuts down that another kind is to utilize the manual shut-down started in valve group 36
Reversal valve 253 realizes oil-break, to make locomotive is flame-out to shut down.
A kind of monorail crane locomotive provided by the present invention, including vibration hydraulic system described in above-mentioned specific embodiment；
The other parts of monorail crane locomotive are referred to the prior art, not reinflated herein.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Monorail crane locomotive provided by the present invention and its vibration hydraulic system are described in detail above.It answers herein
With specific case, principle and implementation of the present invention are described, and the explanation of above example is only intended to help to manage
Solve the method and its core concept of the present invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of the claims.
Claims (10)
1. a kind of vibration hydraulic system of monorail crane locomotive, including explosion-proof engine (6) and to drive the row of locomotive operation
Walk motor (17), which is characterized in that
Further include being set between the explosion-proof engine (6) and the running motor (17), to realize in vibration hydraulic system
The first plunger pump (4) and the second plunger pump (7) of flow-rate adjustment, the actuator port and described second of first plunger pump (4)
The actuator port of plunger pump (7) is in parallel and is connected with the actuator port of the running motor (17).
2. vibration hydraulic system according to claim 1, which is characterized in that the explosion-proof engine (6) passes through transfer case
(3) it is connected with first plunger pump (4), second plunger pump (7), to drive first plunger pump (4) and described the
Two plunger pumps (7) fuel feeding.
3. vibration hydraulic system according to claim 2, which is characterized in that further include with first plunger pump (4) and
Second plunger pump (7) is connected, making first plunger pump (4) and second plunger pump (7) with preset flow
And preset pressure, to the control module of the running motor (17) fuel feeding, the control module includes the decompression of flame-proof type electricity ratio
Valve (1) is connected with the flame-proof type electricity proportional pressure-reducing valve (1) and to realize the servo valve of electro-hydraulic signal conversion and hydraulic regulation
(2), it is capable of the DA control valves (5) of control system pressure and to realize the power valve (20) of overload protection.
4. vibration hydraulic system according to claim 3, which is characterized in that the explosion-proof engine (6), which has, opens and closes institute
State the startup valve group (36) of explosion-proof engine (6), the first oil outlet of first plunger pump (4) and the startup valve group (36)
Oil inlet be connected, the second oil outlet of first plunger pump (4) is connected with the oil inlet of the power valve (20) with realization
Overload protection；
Further include becoming to drive control valve group (34), the clamping cylinder (18) to make driving wheel grip track web and to buffer
The clamping valve group (35) of clamping cylinder (18) charge oil pressure, the first oil outlet and the change of second plunger pump (7)
The oil inlet for driving control valve group (34) is connected, the second oil outlet of second plunger pump (7) and the clamping valve group (35)
The oil inlet of oil inlet and the clamping cylinder (18) is connected.
5. vibration hydraulic system according to claim 4, which is characterized in that be located at first plunger pump (4), described the
Oil supply loop between two plunger pumps (7) and the running motor (17) is equipped with flushing valve (19) and hydraulic oil radiator
(12), the hydraulic oil in oil supply loop can be guided to the hydraulic oil radiator (12) and be dissipated with realizing by the flushing valve (19)
Heat.
6. vibration hydraulic system according to claim 5, which is characterized in that further include same with first plunger pump (4)
Axis setting, to coaxial to the first slippage pump (8) of the first plunger pump (4) repairing and with second plunger pump (7)
It is arranged, to the second slippage pump (10) of the second plunger pump (7) repairing.
7. vibration hydraulic system according to claim 6, which is characterized in that first slippage pump (8) is equipped with to limit
First feed circuit overflow valve of fixed first slippage pump (8) and the pressure in the first plunger pump (4) feed circuit
(131), second slippage pump (10) is equipped with to limit second slippage pump (10) and the second plunger pump (7) repairing
Second feed circuit overflow valve (132) of the pressure in circuit.
8. vibration hydraulic system according to claim 7, which is characterized in that be located at first slippage pump (8) with it is described
It is equipped between first plunger pump (4) to prevent the particle in hydraulic oil from flowing to the first filter of first plunger pump (4)
(29), it is equipped between second slippage pump (10) and second plunger pump (7) to prevent the particle in hydraulic oil
It flow to the second filter (30) of second plunger pump (7).
9. according to claim 1 to 8 any one of them vibration hydraulic system, which is characterized in that further include and first column
Plug pump (4) be co-axially mounted, to the miscellaneous function of auxiliary functions fuel feeding pump (9).
10. a kind of monorail crane locomotive, which is characterized in that including vibration hydraulic system as described in any one of claim 1 to 9.
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| CN201810928339.6A CN108679021B (en) | 2018-08-15 | 2018-08-15 | Monorail crane car and walking hydraulic system thereof |
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| CN201810928339.6A CN108679021B (en) | 2018-08-15 | 2018-08-15 | Monorail crane car and walking hydraulic system thereof |
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| CN108679021B CN108679021B (en) | 2024-08-23 |
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| WO2021037093A1 (en) * | 2019-08-30 | 2021-03-04 | 中国矿业大学 | Electro-hydraulic composite driving system for storage battery monorail crane and self-adaptive clamping method for driving wheel |
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| CN118811700A (en) * | 2024-09-20 | 2024-10-22 | 云南星石科技有限公司 | A diesel engine monorail crane and its control system |
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