CN106931002A - Two way ferry bus latch bridge hydraulic system - Google Patents
Two way ferry bus latch bridge hydraulic system Download PDFInfo
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- CN106931002A CN106931002A CN201511032959.4A CN201511032959A CN106931002A CN 106931002 A CN106931002 A CN 106931002A CN 201511032959 A CN201511032959 A CN 201511032959A CN 106931002 A CN106931002 A CN 106931002A
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- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims description 19
- 238000004880 explosion Methods 0.000 claims description 17
- 239000002828 fuel tank Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 13
- 239000013589 supplement Substances 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- 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
-
- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/004—Fluid pressure supply failure
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention discloses a kind of two way ferry bus latch bridge hydraulic system, including oil supply mechanism, latch bridge loop, latch bridge solenoid directional control valve and pressure controller；Oil supply mechanism includes power source, hydraulic pump and electromagnetic clutch；Hydraulic pump is communicated in power source to form a driving-chain；Electromagnetic clutch can open and close on driving-chain, to be switched on or switched off driving-chain；Latch bridge loop includes latch bridge pressure piping and latch bridge return line, is respectively communicated between hydraulic pump and Liang Zu latch bridges mechanism；Latch bridge solenoid directional control valve is located on latch bridge pressure piping, optionally to one of Liang Zu latch bridges mechanism fuel feeding；Pressure controller is located between hydraulic pump and latch bridge solenoid directional control valve, and pressure controller can be according to the loine pressure in latch bridge loop, to electromagnetic clutch output switch amount signal, to control the keying of electromagnetic clutch.Simple structure of the present invention, installing space is limited and stringing is difficult on ferry-boat vehicle carriage to solve the problems, such as the hydraulic parts such as accumulator, radiator.
Description
Technical field
The present invention relates to ferry bus technical field, in particular to a kind of lock of two way ferry bus
Bridge hydraulic system.
Background technology
Airport ferry push is used to travel to and fro between pick boarding and the passenger that disembarks between terminal and remote seat in the plane aircraft,
Its station level ground and other places for being applied to each Civil Aviation Airport.Airport ferry push vehicle body overall length is general on 14 meters of left sides
The right side, at 7.1 meters or so, turning diameter is more than 25 meters to wheelbase, and airpark place space is limited, ferry-boat
There is a problem of difficulty during car backward going.For less airport, two way ferry bus due to
It has two driving heads, therefore is more adapted to its less traffic space.Driver needs in driving procedure
When turning around, need to only be driven in another driving head.The appearance of two way ferry bus is efficiently solved
Airport ferry push radius of turn is big, the problem of difficulty.
Two way ferry bus has two sets of control loops, respectively positioned at the front portion of vehicle and afterbody, generally
Referred to as A and B heads, wherein being main driver side also known as A, B is copilot side.Current is double
The technical scheme that head ferry bus is realized from major functions such as driving, steering, braking and latch bridges is divided, and is divided into
Full hydraulic drive and partial function hydraulic-driven.Existing two way ferry bus mainly uses partial function liquid
Pressure type of drive, i.e. latch bridge function and power-assisted steering function are realized that other parts are machinery by hydraulic system
Or air-channel system is realized.The fully loaded quality of airport ferry push is general at 20 tons or so, and travel speed typically exists
20km/h~50km/h.
The latch bridge function of existing hydraulic system, mainly can be certainly by the vehicle bridge of driver side where driver
By turning to, the vehicle bridge of another driver side is locked just by hydraulic jack by hydraulic system and makes both sides tire one
Keep vertical with vehicle bridge axis under fixed hydraulic pressure, tire keeps linear motion.
In the latch bridge hydraulic system of existing two way ferry bus, hydraulic pump and power source (including start
Mechanical, electrical motivation etc.) connected mode be mainly and be rigidly connected, i.e., by flange-face coupling or spline transition
The mode that axle sleeve etc. is attached.This rigid connection is for input shaft and the requirement of output shaft axiality
Height, quality of fit and installation accuracy requirement are high, and the lubricating requirement of transmission portion is high, in frequent start-stop or
Pressure frequently in the hydraulic system of change, easily causes connector or input and output shaft abrasion until transmission is lost
Effect.
The content of the invention
A primary object of the present invention is at least one defect for overcoming above-mentioned prior art, there is provided one
Plant the two way ferry-boat lock that can avoid installation requirement high, lubricating difficulties and pump shaft problem easy to wear
Bridge hydraulic system.
For achieving the above object, the present invention is adopted the following technical scheme that：
According to an aspect of the present invention, there is provided a kind of two way ferry bus latch bridge hydraulic system, it is described
Two way ferry bus includes being located at two vehicle bridge of its front and rear side and can respectively lock just described two cars
The Liang Zu latch bridges mechanism of bridge, the two way ferry bus latch bridge hydraulic system includes oil supply mechanism, latch bridge
Loop, latch bridge solenoid directional control valve and pressure controller；The oil supply mechanism includes power source, hydraulic pump
And electromagnetic clutch；The hydraulic pump is communicated in the power source to form a driving-chain；The electromagnetism from
Clutch can open and close on the driving-chain, to be switched on or switched off the driving-chain；The latch bridge loop
Including latch bridge pressure piping and latch bridge return line, it is respectively communicated with the hydraulic pump and two groups of locks
Between bridge mechanism；The latch bridge solenoid directional control valve is located on the latch bridge pressure piping, optionally to institute
One of Shu Liangzu latch bridges mechanism fuel feeding；The pressure controller is located on the latch bridge pressure piping,
And between the hydraulic pump and the latch bridge solenoid directional control valve, the pressure controller can be according to institute
The loine pressure in latch bridge loop is stated, to the electromagnetic clutch output switch amount signal, to control the electricity
The keying of magnet clutch.
One of implementation method of the invention, the two way ferry bus latch bridge hydraulic system is also
Including check valve；The check valve is located on the latch bridge pressure piping, and positioned at the hydraulic pump and institute
State between pressure controller；Wherein, the check valve from the hydraulic pump to the pressure controller
It is conducting on direction, in the opposite direction for normally closed.
One of implementation method of the invention, the latch bridge solenoid directional control valve is the electromagnetism with positioning
Reversal valve.
One of implementation method of the invention, the two way ferry bus latch bridge hydraulic system is also
Including pressure warning unit；The pressure warning unit is located at the latch bridge pressure piping, with the pressure
Force controller measures the pressure value in the latch bridge loop, is alarmed during less than a lower safety limit pressure value.
One of implementation method of the invention, the two way ferry bus latch bridge hydraulic system is also
Including emergency hydraulic system；The emergency hydraulic system includes emergent oil pump and emergent magnetic valve；It is described to answer
Urgent telegram magnet valve can open and close to be communicated between the oil supply mechanism and the latch bridge loop, make the emergency oil
Pump is to latch bridge loop fuel feeding.
One of implementation method of the invention, the two way ferry bus latch bridge hydraulic system is also
Including explosion-proof pipe device；The explosion-proof pipe device is located at the latch bridge pressure piping, and positioned at the latch bridge
The connectivity part of pressure piping and the latch bridge mechanism, the pressure value of the latch bridge pressure piping is explosion-proof less than one
During pipe threshold pression value, the explosion-proof pipe device cuts off the latch bridge pressure piping.
One of implementation method of the invention, latch bridge mechanism described in every group includes two latch bridge oil cylinders,
To lock two wheels at just described vehicle bridge two ends respectively, the latch bridge pressure piping has four two grades of branch roads,
Described four two grades of branch roads are respectively communicated with four latch bridge oil cylinders.
One of implementation method of the invention, each two grades of branch roads of the latch bridge pressure piping
On, the explosion-proof pipe device is equipped with, and each described explosion-proof pipe device is located at corresponding two grades of branch
The connectivity part of road and the latch bridge oil cylinder, two grades of pressure values of branch road of any bar of the latch bridge pressure piping
During less than the explosion stack threshold pression value, the corresponding explosion-proof pipe device cuts off two grades of branch roads.
One of implementation method of the invention, the explosion-proof pipe device includes magnetic valve and pressure
Relay；The magnetic valve selectively communicates with or cuts off the latch bridge pressure piping；The pressure relay
Device can control the magnetic valve, and the pressure value of the latch bridge pressure piping is less than pressure limiting under the explosion stack
During force value, the pressure switch controls the magnetic valve to cut off the latch bridge pressure piping.
One of implementation method of the invention, the two way ferry bus latch bridge hydraulic system is also
Including explosion stack experimental provision；The explosion stack experimental provision is located at the latch bridge pressure piping, and is located at
Between the explosion-proof pipe device and the latch bridge mechanism, the explosion stack experimental provision include experiment fuel tank and
Stop valve；The experiment fuel tank is communicated in the latch bridge pressure piping by an experiment pipeline；The cut-off
Valve is located at the experiment pipeline, to selectively turn on or cut off the experiment pipeline.
As shown from the above technical solution, two way ferry bus latch bridge hydraulic system proposed by the present invention is excellent
Point and good effect are：
The present invention passes through to use programmable pressure controller and electromagnetic clutch, instead of existing two way
Accumulator charging valve, accumulator, pressure switch, radiator, the tooth used in ferry-boat vehicle hydraulic system
The element such as rigidly connected hub splines between wheel pump and engine.Based on this structure, electromagnetic clutch
The on-off model exported according to pressure controller adjusts the output shaft and hydraulic pressure of working condition, i.e. power source
Connection between the pump shaft of pump to be flexible coupling, only replenishment system pressure when, electromagnetic clutch just makes hydraulic pressure
Pump startup runs well.By said structure, hydraulic pump shuts down within the most of the time, and rotating speed is
Zero, not output flow and pressure, the reduction of system heat generation amount, i.e., power output is zero, with section well
Can effect.Meanwhile, the flexible connection structure between the output shaft of power source and the pump shaft of hydraulic pump, Neng Gouyou
Effect solve the problems, such as to be rigidly connected present in installation requirement is high, lubricating difficulties and pump shaft are easy to wear.This hair
Bright simple structure, it is few using Hydraulic Elements, simplify HYDRAULIC CONTROL SYSTEM principle, solve accumulator, dissipate
The hydraulic parts such as the hot device problem that installing space is limited and stringing is difficult on ferry-boat vehicle carriage.
Brief description of the drawings
It is of the invention by being considered in conjunction with the accompanying the following detailed description to the preferred embodiment of the present invention
Various targets, feature and advantage will become apparent.Accompanying drawing is only exemplary diagram of the invention,
It is not necessarily drawn to scale.In the accompanying drawings, same reference represents same or similar all the time
Part.Wherein：
Fig. 1 is a kind of two way ferry bus latch bridge hydraulic system according to an illustrative embodiments
System schematic；
Fig. 2 is a kind of two way ferry bus latch bridge hydraulic system according to an illustrative embodiments
Valve block box structure schematic diagram；
Fig. 3 is a kind of two way ferry bus latch bridge hydraulic system according to an illustrative embodiments
Valve block case top view.
Wherein, description of reference numerals is as follows：
10. vehicle bridge；20. latch bridge oil cylinders；11. engines；21. latch bridge solenoid directional control valves；221. magnetic valves；
222. pressure switches；241. pressure controllers；242. buzzers；25. check valves；26. hydraulic pumps；3.
Electromagnetic clutch；42. emergent oil pumps；43. emergent magnetic valves；5. valve block case；51. side plates.
Specific embodiment
Embodying feature of present invention will describe in detail in the following description with the exemplary embodiments of advantage.Ying Li
Solution is that the present invention can have various changes in different embodiments, and it does not all depart from of the invention
Scope, and explanation therein and diagram are inherently illustrative, and it is not used to the limitation present invention.
In to being described below different illustrative embodiments of the invention, carry out referring to the drawings, it is described
Accompanying drawing forms a part of the invention, and wherein shows achievable multiple of the invention by way of example
The different example arrangements of aspect, system and step.It should be understood that, it is possible to use part, structure, example
Other specified schemes of property device, system and step, and can be without departing from the scope of the invention
Carry out structural and functional modification.And, although be can be used in this specification term " between ", " on ",
Etc. describing different example features of the invention and element, but these terms with this article merely for
It is convenient, for example with reference to the accompanying drawings described in example direction.Any content in this specification should not all be managed
Solve as the specific three dimensional direction of Structure of need just falls within the scope of the present invention.
It should be noted that in following exemplary description, each numerical value unit is with word or numeral
Form is illustrated, for example pressure unit MPa (MPa), chronomere minute (min), second (s),
Parasang rice (m), millimeter (mm), speed unit kilometer per hour (km/h) and volume unit
(L) etc. is risen, present invention application in other embodiments is not limited.With reference to the accompanying drawings to this
One of illustrative embodiments of invention are further described.
Refering to Fig. 1, a kind of two way ferry-boat lock of present embodiment is representatively illustrated in Fig. 1
The system schematic of bridge hydraulic system (hereinafter referred to as latch bridge hydraulic system).In the present embodiment, should
Latch bridge hydraulic system can be applied in the hydraulic system of two way ferry bus.The two way ferry bus
With two driver sides, respectively a heads are main driving side and b i.e. copilot side, are also called two-way row
Front side and the rear side of ferry bus are sailed, the side where each driver side is respectively provided with (a front side of vehicle bridge 10
Vehicle bridge is usually steering and driving axle, and rear side vehicle bridge is usually steeraxle), each vehicle bridge 10 is equipped with latch bridge
Mechanism.Specifically, for the latch bridge mechanism in a vehicle bridge 10, including the vehicle bridge both sides are respectively arranged on
Two wheel positions on two latch bridge oil cylinders 20.Latch bridge oil cylinder 20 is used to lock the just corresponding car in the side
Wheel, i.e. latch bridge mechanism lock just vehicle bridge 10.When driver is when driving for a and one of b,
Opposite side vehicle bridge 10 is then locked just by the hydraulic pressure of latch bridge mechanism, and tire keeps linear motion.
As shown in figure 1, in the present embodiment, the latch bridge hydraulic system can be used in two way ferry-boat
The latch bridge of car both sides vehicle bridge.The latch bridge hydraulic system mainly includes oil supply mechanism, latch bridge loop, latch bridge electricity
Magnetic reversal valve 21, pressure controller 241, check valve 25, explosion-proof pipe device, explosion stack experimental provision,
Pressure warning unit and emergency hydraulic system.
As shown in figure 1, in the present embodiment, oil supply mechanism mainly includes engine 11, hydraulic pump 26
And electromagnetic clutch 3.Wherein, the engine 11 is the power source of the oil supply mechanism, and is generally had
Power output shaft.The hydraulic pump 26 is communicated in engine 11 to form a driving-chain, and hydraulic pump 26
Generally there is pump shaft.The electromagnetic clutch 3 can open and close on driving-chain, to be switched on or switched off transmission
Chain.Specifically, in the present embodiment, the electromagnetic clutch 3 can open and close to be arranged on power output
Between axle and pump shaft, i.e., the power output shaft of engine 11 passes through electromagnetic clutch with the pump shaft of hydraulic pump 26
Device 3 is realized being flexible coupling.
As shown in figure 1, in the present embodiment, latch bridge loop mainly includes latch bridge pressure piping and latch bridge
Return line, both are connected between hydraulic pump 26 and Liang Zu latch bridges mechanism.Wherein, latch bridge pressure
Pipeline one end is communicated in the hydraulic pump 26 of oil supply mechanism, so that engine 11 passes through hydraulic pump 26 to latch bridge
Pressure piping fuel feeding.The other end of latch bridge pressure piping is respectively communicated with Liang Zu latch bridges mechanism.
As shown in figure 1, in the present embodiment, pressure controller 241 is located on latch bridge pressure piping,
And between hydraulic pump 26 and latch bridge solenoid directional control valve 21, pressure controller 241 can be according to latch bridge
The different measured values of circuit lines pressure, multiple corresponding on-off models are exported to electromagnetic clutch 3,
To control the keying of electromagnetic clutch 3, that is, control the connection linked between engine 11 and hydraulic pump 26
In disconnection.
Hereinafter, with reference to a specific use example, electromagnetism is controlled to pressure controller in present embodiment 241
The substantially flow of clutch 3 is illustrated：
Wherein, for example, electromagnetic clutch 3 can select maximum output torque 55Nm, its company
Connect the electromagnetic clutch that tooth form is matched with the power output shaft of engine 11 and the pump shaft tooth form of hydraulic pump 26.
Also, pressure controller 241 can select SPWF type electronic pressure controllers.The pressure controller 241
Control principle and control flow be：Realize that switching value is defeated by the pressure value for setting pressure controller 241
Go out, so as to be controlled to electromagnetic clutch 3.Specifically, pressure controller 241 can set example
Such as three pressure values, respectively 7 MPas, 9 MPas and 15 MPas.During latch bridge hydraulic work system, when
When system pressure reaches 15 MPas, pressure controller 241 exports corresponding on-off model, make electromagnetism from
Clutch 3 disconnects driving-chain, and now hydraulic pump 26 stops operating, without flow and pressure output.Due to system
The reasons such as oil liquid leakage, system pressure is gradually reduced, when being reduced to 9 MPas, pressure controller output
Corresponding on-off model, makes electromagnetic clutch 3 connect driving-chain, and now hydraulic pump 26 is latch bridge pressure
Pipeline supplements pressure, until system pressure gos up to 15 MPas, when electromagnetic clutch 3 be again off transmission
Chain.
In addition, in the present embodiment, pressure warning unit is additionally provided with latch bridge pressure piping, specifically
For, when due to hydraulic system fault cause pressure controller 241 monitor system pressure be less than 7 MPas
Lower safety limit pressure value when, pressure controller 241 exports corresponding on-off model, instrument board hydraulic pressure
The low indicator lamp of system pressure is bright, and the pressure warning unit of a such as buzzer 242 starts alarm, and prompting is driven
The person's of sailing hydraulic system pressure is low, should be overhauled.
As shown in figure 1, in the present embodiment, check valve 25 is arranged on latch bridge pressure piping,
And between hydraulic pump 26 and pressure controller 241.The check valve 25 from hydraulic pump 26 to pressure
It is conducting on the direction of force controller 241, in the opposite direction for normally closed.Wherein, check valve 25
The effect of pressure isolation is primarily served, pressure is 0, check valve between hydraulic pump 26 and check valve 25
Initial pressure between 25 and latch bridge oil cylinder 20, i.e. system worked well pressure are 15 MPas.Need
It is noted that retouching for above-mentioned pressure controller 241 and check valve 25 in present embodiment
State and be merely illustrative, its specific set-up mode and installation site can be adjusted flexibly according to actual needs
It is whole.Also, can a setting pressure controller 241, can also set simultaneously pressure controller 241 with
Check valve 25, is not limited with present embodiment.
From the above, the present invention is using programmable pressure controller 241 and electromagnetic clutch 3, generation
For existing two way ferry-boat vehicle hydraulic system in use accumulator charging valve, accumulator, pressure after
The element such as rigidly connected hub splines between electrical equipment, radiator, gear pump and engine.Based on this
Plant structure, the on-off model adjustment work shape that electromagnetic clutch 3 is exported according to pressure controller 241
To be flexible coupling, only supplement is for connection between the output shaft of state, i.e. power source and the pump shaft of hydraulic pump
During system pressure, electromagnetic clutch 3 just makes hydraulic pump 26 start normal operation.By said structure,
Hydraulic pump 26 shuts down within the most of the time, and rotating speed is zero, not output flow and pressure, is
System caloric value is reduced, i.e., power output is zero, with good energy-saving effect.Meanwhile, power source
Flexible connection structure between the pump shaft of output shaft and hydraulic pump 26, can effectively solve the problem that in being rigidly connected
The installation requirement of presence is high, lubricating difficulties and pump shaft problem easy to wear.
In addition, in existing hydraulic principle, accumulator charging valve self structure principle determines oil pump
Pressure differential is 2 MPas between supplement pressure and off-load, and the difference cannot change, and causes the oil pump to be frequently
Hydraulic system supplements pressure and off-load.The present invention uses programmed pressure controller 241 and electromagnetic clutch
Device 3 so that hydraulic pump 26 is changed between two kinds of working conditions of supplement pressure and stalling, can be compiled
Pressure difference value can be between the supplement pressure of hydraulic pump 26 of the setting of pressure controller 241 of journey and off-load
It is such as 6 MPas by program setting, hence it is evident that increase the time interval that hydraulic pump 26 supplements pressure,
The service life of hydraulic pump 26 can effectively be extended.
As shown in figure 1, in the present embodiment, latch bridge solenoid directional control valve 21 is preferably with two four of positioning
Corresponding electromagnet is kept as electricity when electric change valve, its left position or right position work, the technical characterstic
Actually serve the effect of double insurance, it is to avoid after the positioner failure of latch bridge solenoid directional control valve 21
Its situation that can not be maintained at working position, now electromagnet often-have-electricity, electromagnetic attraction makes valve element be maintained at work
Make position, it also avoid electrical malfunction causes electromagnet dead electricity, its situation that can not be maintained at working position,
Now positioner makes valve element be maintained at working position.The selection of above-mentioned latch bridge solenoid directional control valve 21, it is to avoid
The valve element of the latch bridge solenoid directional control valve of existing double end ferry bus latch bridge hydraulic system can not be maintained at normal work
Position, caused by the problem that reduces suddenly of latch bridge hydraulic system fault and hydraulic pressure latch bridge pressure.In other realities
Apply in mode, also form can be set according to the pipeline in latch bridge loop, flexibly select other kinds of electromagnetism
Reversal valve, but should the preferred solenoid directional control valve with positioning function, be not limited thereto.
It should be noted that the preferred model of the two-position four-way of above-mentioned latch bridge solenoid directional control valve 21, mainly examines
Consider the one of which preferable layout of the latch bridge pressure piping in present embodiment.Specifically, latch bridge pressure
Pipeline have be respectively communicated with four the four of latch bridge oil cylinder 20 two grades of branch roads, and corresponding to the same side vehicle bridge
Two two grades of branch roads be communicated in an one-level branch road, two one-level branch roads are respectively communicated with and are changed in latch bridge electromagnetism
To on valve 21, and above-mentioned four two grades of branch roads, two one-level branch roads and it is communicated in latch bridge solenoid directional control valve
Pipeline between 21 and engine 11, has collectively constituted the major part of latch bridge pressure piping.
The latch bridge hydraulic system of existing ferry bus is reduced suddenly mainly to be caused by following reason：Connection latch bridge oil
There is booster in the sebific duct of cylinder, cause hydraulic oil liquid to be flowed out by booster side, and latch bridge hydraulic system cannot be set up
Pressure (hydraulic jack extreme lower position is usually 100 millimeters, is vehicle road clearance minimum position,
Easily there is booster in pipeline).Electric fault causes H types three-position four-way electromagnetic directional valve, and (traditional double end is ferried
Car uses H types three-position four-way electromagnetic directional valve) dead electricity, valve element middle position drain charge.Regarding to the issue above,
As shown in figure 1, in the present embodiment, explosion-proof pipe device is located at latch bridge pressure piping, and positioned at latch bridge
Pressure piping and the connectivity part of latch bridge mechanism, i.e. each two grades of branch roads of latch bridge pressure piping and each latch bridge oil
The connectivity part of cylinder 20.Explosion-proof pipe device includes magnetic valve 221 and pressure switch 222, magnetic valve 221
For selectively communicating with or cutting off latch bridge pressure piping, pressure switch 222 is used to control magnetic valve
221, when the pressure value of latch bridge pressure piping is less than an explosion stack threshold pression value (such as 9 MPas), pressure
The control cut-out latch bridge pressure piping of magnetic valve 221 of power relay 222.It should be noted that in this implementation
In mode, latch bridge solenoid directional control valve 21 is preferably the two-position four-way solenoid directional control valve with positioning, i.e. latch bridge pressure
Solenoid road is divided into two one-level branch roads, that is, four two grades of branch roads at latch bridge solenoid directional control valve 21.This two
Position four-way electromagnetic reversing valve has two current potentials, each current potential two one-level branch roads of correspondence, to be respectively communicated with
Latch bridge mechanism before and after to ferry bus in side vehicle bridge 10.In sum, in the present embodiment, explosion stack
The quantity of device is the magnetic valve of four groups, i.e., four 221 and four pressure switches 222, is respectively provided with
In on four two grades of branch roads.In other embodiments, also can be in wherein with each latch bridge mechanism
One group of explosion-proof pipe device is set on two grades of branch roads of the individual connection of latch bridge oil cylinder 20, also or according to latch bridge pressure pipe
Road sets form with the other pipelines of latch bridge mechanism junction, correspondingly changes the setting side of explosion-proof pipe device
Formula, is not limited thereto, and only need to meet the work(for providing side vehicle bridge 10 before and after ferry bus above-mentioned explosion stack
Energy.
As shown in figure 1, in the present embodiment, explosion stack experimental provision is located on latch bridge pressure piping,
And between explosion-proof pipe device and latch bridge mechanism.Wherein, explosion stack experimental provision include experiment fuel tank and
Stop valve, experiment fuel tank is communicated in latch bridge pressure piping by an experiment pipeline, and stop valve is located at experiment
Pipeline, to selectively turn on or cut off experiment pipeline.For said structure, the present invention devises booster
Test and booster is simulated to every two grades of branch road, it is ensured that explosion-proof pipe device can be effective when vehicle is travelled
Prevent booster.By taking wherein one two grades of branch roads as an example, the schematic diagram for designing it explosion stack experiment is referred to
Fig. 2, in latch bridge oil cylinder 20 and two grades of interfaces of branch road, draws one section of experiment pipeline and connects with stop valve
Connect, stop valve other end connection experiment fuel tank.After two grades of branch roads reach 15 MPas of normal latch bridge pressure,
Manual unlocking stop valve, simulates this pipeline booster.Magnetic valve 221 after booster on two grades of branch roads of this
Automatically cut off the branch road.In above-mentioned experiment the normal latch bridge pressure of latch bridge hydraulic system be 15 MPas, pressure after
The set pressure of electrical equipment 222 is 9 MPas.Key parameter in booster experiment is pressure switch 222
Pressore setting, general ideal state is the action cut-out of magnetic valve 221 after 2 seconds~3 seconds of generation booster
Booster loop.If pressure set points are too high, system may be produced because other reasonses pressure is reduced to setting value
Raw booster action by mistake, actually not there is booster in system.If pressure set points are too low, due to hydraulic pressure
Pump 26 is continuously system supplement pressure so that system pressure is maintained more than the relatively low pressure set points,
Even if system occurs booster cannot also be measured (because hydraulic pump 26 is constantly for hydraulic system supplements pressure, making
The pressure of hydraulic system is maintained more than relatively low setting value), then may cause to lead to without booster action fluid
Booster effluent is crossed to use up.
As shown in figure 1, in the present embodiment, emergency hydraulic system mainly include emergent oil pump 42 and
Emergent magnetic valve 43.Emergent magnetic valve 43 is used to can open and close to connection engine 11 and latch bridge loop, makes
Emergent oil pump 42 is to latch bridge loop fuel feeding.Further, in order to avoid engine 11 breaks down correspondingly
The influence of anxious hydraulic system, can also set an emergency tank, so that emergent magnetic valve 43 can open and close to connect
Logical emergency tank and latch bridge loop, make emergent oil pump 42 to latch bridge loop fuel feeding.In other embodiments,
Each Hydraulic Elements in emergency hydraulic system also may be selected other species, be not limited thereto.
By taking present embodiment as an example, when latch bridge hydraulic system failure causes systemic breakdown, urgent telegram is answered
Magnet valve 43 is selected by engine 11 or emergency tank and latch bridge circuit communication, and by oil pump 42 of meeting an urgent need
It is latch bridge mechanism fuel feeding to latch bridge loop, realizes emergent latch bridge function.Preferably, emergency line and latch bridge
The communicating position in loop is the position between pressure compensator and check valve 25 on latch bridge pressure piping,
Position i.e. between latch bridge solenoid directional control valve 21 and hydraulic pump 26.Emergency hydraulic system solves vehicle event
The potential safety hazard of latch bridge failure during barrier.
It should be appreciated that emergency hydraulic system is not limited in providing emergency guarantee for latch bridge hydraulic system.
The emergency hydraulic system can also be including including power-assisted steering hydraulic system, two way ferry bus
Other hydraulic systems provide the implementation method of emergency guarantee.For example, emergent magnetic valve 43 can be selected into electromagnetism
Reversal valve, optionally to carry out emergent fuel feeding to above-mentioned each hydraulic system at least one,
Each hydraulic system i.e. simultaneously to two way ferry bus provides emergency guarantee.
Further, coordinate and representatively illustrate present embodiment refering in Fig. 2 and Fig. 3, Fig. 2
A kind of structural representation of the valve block case 5 of two way ferry bus latch bridge hydraulic system, it is representative in Fig. 3
Show present embodiment a kind of two way ferry bus latch bridge hydraulic system valve block case 5 vertical view
Structural representation, and understand for the ease of observation, after the expansion of the side plate 51 of valve block case 5 is specially in Fig. 3
Top view.
As shown in Figures 2 and 3, in the present embodiment, two way ferry-boat lock proposed by the present invention
Part valve member and element in bridge hydraulic system, are mounted in a valve block case 5.Specifically, can be with
By elements such as the section hydraulic valve in above-mentioned hydraulic system, hydraulic valve block, pressure controllers 241 with integrated
The mode of installation is installed in the valve block case 5, and part main element arrangement can be according to valve block case 5
Installation site, installing space or piping mode on two way ferry bus are adjusted flexibly.It is this
Integrated arrangement is conducive to debugging, fault diagnosis and the pipeline of hydraulic system to simplify, and is easy to later stage hydraulic pressure
The maintenance maintenance of system, effectively improves the operating efficiency of maintenance personal.
However, skilled addressee readily understands that, the setting of above-mentioned valve block case is only of the invention
The one of which exemplary arrangement mode of part valve member or element.Wherein, a master of valve block case 5 is set
Syllabus is debugging, fault diagnosis and the maintenance for facilitating system.However, in order to achieve the above object and
Valve block case 5 and its internal valve member arrangement are entered with the various ways such as adding, deleting, merge, replace
Row adjustment, all without departing from the scope of the principle of two way ferry bus latch bridge hydraulic system proposed by the present invention.
For example, in other illustrative embodiments of the invention, can be by the part or all of with collection of above-mentioned valve member
It is arranged on the optional position of the body construction of two way ferry bus into mode, or is dispersedly arranged on
Other are easy on the position debugging and repair.
It is described in detail above and/or illustrate two way ferry bus latch bridge hydraulic pressure system proposed by the present invention
The illustrative embodiments of system.But embodiments of the present invention are not limited to particular implementation side as described herein
Formula, conversely, the part and/or step of each implementation method can be with other composition portions as described herein
Divide and/or step is independent and is used separately.Each part and/or each step of one implementation method
Also can be used in combination with other parts and/or step of other embodiment.It is described here introducing
And/or diagram key element/part/wait when, term " one ", " one " and " above-mentioned " etc. are used to
Expression exist one or more elements/part/etc..Term "comprising", " comprising " and " having "
It is used to represent the open meaning being included and refers to key element/part/wait it except listing
It is outer also there may be other key element/part/etc..Additionally, the term in claims and specification
" first " and " second " etc. only use as mark, are not the numerical limits to its object.
Although according to different specific embodiments to two way ferry bus latch bridge hydraulic pressure proposed by the present invention
System is described, but it will be recognized by those skilled in the art can be in spirit and scope by the claims
It is interior that implementation of the invention is modified.
Claims (10)
1. a kind of two way ferry bus latch bridge hydraulic system, the two way ferry bus includes being located at it
Two vehicle bridge (10) of front and rear side and the Liang Zu latch bridges mechanism of just described two vehicle bridge (10) can be respectively locked,
The two way ferry bus latch bridge hydraulic system includes：
Oil supply mechanism, including：
Power source；
Hydraulic pump (26), is communicated in the power source to form a driving-chain；And
Electromagnetic clutch (3), can open and close on the driving-chain, to be switched on or switched off the biography
Dynamic chain；
Latch bridge loop, including latch bridge pressure piping and latch bridge return line, are respectively communicated with the hydraulic pressure
Between pump (26) and the Liang Zu latch bridges mechanism；
Latch bridge solenoid directional control valve (21), on the latch bridge pressure piping, optionally to described two groups
One of latch bridge mechanism fuel feeding；And
Pressure controller (241), on the latch bridge pressure piping, and positioned at the hydraulic pump (26) with
Between the latch bridge solenoid directional control valve (21), the pressure controller (241) can be according to the latch bridge loop
Loine pressure, to the electromagnetic clutch (3) export multiple switch amount signal, with control the electromagnetism from
The keying of clutch (3).
2. two way ferry bus latch bridge hydraulic system according to claim 1, also includes：
Check valve (25), on the latch bridge pressure piping, and positioned at the hydraulic pump (26) and the pressure
Between force controller (241)；
Wherein, the check valve (25) from direction from the hydraulic pump (26) to the pressure controller (241)
Upper is conducting, in the opposite direction for normally closed.
3. two way ferry bus latch bridge hydraulic system according to claim 2, wherein, the lock
Bridge solenoid directional control valve (21) is the solenoid directional control valve with positioning.
4. two way ferry bus latch bridge hydraulic system according to claim 2, also includes：
Pressure warning unit, located at the latch bridge pressure piping, measures with the pressure controller (241)
The pressure value in the latch bridge loop, is alarmed during less than a lower safety limit pressure value.
5. two way ferry bus latch bridge hydraulic system according to claim 2, also includes：
Emergency hydraulic system, including：
Emergent oil pump (42)；And
Emergent magnetic valve (43), can open and close to be communicated in the oil supply mechanism and the latch bridge loop it
Between, make the emergent oil pump (42) to latch bridge loop fuel feeding.
6. two way ferry bus latch bridge hydraulic system according to claim 2, also includes：
Explosion-proof pipe device, located at the latch bridge pressure piping, and positioned at the latch bridge pressure piping with it is described
The connectivity part of latch bridge mechanism, when the pressure value of the latch bridge pressure piping is less than an explosion stack threshold pression value,
The explosion-proof pipe device cuts off the latch bridge pressure piping.
7. two way ferry bus latch bridge hydraulic system according to claim 6, wherein, every group of institute
Stating latch bridge mechanism includes two latch bridge oil cylinders (20), to lock two cars at just described vehicle bridge (10) two ends respectively
Wheel, the latch bridge pressure piping has four two grades of branch roads, and described four two grades of branch roads are respectively communicated with four
The individual latch bridge oil cylinder (20).
8. two way ferry bus latch bridge hydraulic system according to claim 7, wherein, the lock
On each two grades of branch roads of bridge pressure piping, the explosion-proof pipe device is equipped with, and each is described explosion-proof
Pipe device is located at the connectivity part of corresponding two grades of branch roads and the latch bridge oil cylinder (20), the latch bridge pressure
When two grades of pressure values of branch road of any bar on solenoid road are less than the explosion stack threshold pression value, corresponding institute
State explosion-proof pipe device and cut off two grades of branch roads.
9. the two way ferry bus latch bridge hydraulic system according to any one of claim 6~8, its
In, the explosion-proof pipe device includes：
Magnetic valve (221), selectively communicates with or cuts off the latch bridge pressure piping；And
Pressure switch (222), can control the magnetic valve (221), the pressure of the latch bridge pressure piping
When value is less than the explosion stack threshold pression value, the pressure switch (222) controls the magnetic valve (221)
Cut off the latch bridge pressure piping.
10. two way ferry bus latch bridge hydraulic system according to claim 1, also includes：
Explosion stack experimental provision, located at the latch bridge pressure piping, and positioned at the explosion-proof pipe device and institute
State between latch bridge mechanism, the explosion stack experimental provision includes：
Experiment fuel tank, the latch bridge pressure piping is communicated in by an experiment pipeline；And
Stop valve, located at the experiment pipeline, to selectively turn on or cut off the experiment pipeline.
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| CN201511032959.4A CN106931002B (en) | 2015-12-31 | 2015-12-31 | Two way ferry bus latch bridge hydraulic system |
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| CN201511032959.4A CN106931002B (en) | 2015-12-31 | 2015-12-31 | Two way ferry bus latch bridge hydraulic system |
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| CN106931002B CN106931002B (en) | 2018-10-23 |
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| CN108569157A (en) * | 2018-01-23 | 2018-09-25 | 中国国际海运集装箱(集团)股份有限公司 | The electronic ferry bus of bidirectional driving |
| CN108691849A (en) * | 2018-04-23 | 2018-10-23 | 马钢(集团)控股有限公司 | Emergency system after a kind of failure of construction machinery hydraulic system |
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Also Published As
| Publication number | Publication date |
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| CN106931002B (en) | 2018-10-23 |
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Effective date of registration: 20210615 Address after: 102206 b4061, building 8, No. 97, Changping Road, Shahe Town, Changping District, Beijing (Changping Demonstration Park) Patentee after: XINFA AIRPORT EQUIPMENT Ltd. Patentee after: LANGFANG CIMC AIRPORT EQUIPMENT Co.,Ltd. Patentee after: SHENZHEN CIMC-TIANDA AIRPORT SUPPORT Co.,Ltd. Address before: 518067 CIMC R & D center, No. 2 Harbour Road, Shekou Industrial Zone, Guangdong, Shenzhen Patentee before: China International Marine Containers (Group) Co.,Ltd. Patentee before: XINFA AIRPORT EQUIPMENT Ltd. Patentee before: LANGFANG CIMC AIRPORT EQUIPMENT Co.,Ltd. Patentee before: SHENZHEN CIMC-TIANDA AIRPORT SUPPORT Co.,Ltd. |
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