CN107882821A - Dual-way vehicle latch bridge hydraulic system - Google Patents
Dual-way vehicle latch bridge hydraulic system Download PDFInfo
- Publication number
- CN107882821A CN107882821A CN201610874645.7A CN201610874645A CN107882821A CN 107882821 A CN107882821 A CN 107882821A CN 201610874645 A CN201610874645 A CN 201610874645A CN 107882821 A CN107882821 A CN 107882821A
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- feed line
- oil
- latch bridge
- bridge
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- 230000007246 mechanism Effects 0.000 claims abstract description 126
- 239000000446 fuel Substances 0.000 claims abstract description 29
- 230000002146 bilateral effect Effects 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 154
- 239000007788 liquid Substances 0.000 claims description 25
- 239000002828 fuel tank Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 238000004880 explosion Methods 0.000 claims description 15
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 abstract description 3
- 238000012217 deletion Methods 0.000 description 5
- 230000037430 deletion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000007634 remodeling Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000010729 system oil Substances 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
Landscapes
- 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)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention discloses a kind of dual-way vehicle latch bridge hydraulic system, and it includes oil supply mechanism, Liang Zu latch bridges mechanism, main latch bridge loop and standby latch bridge loop；Liang Zu latch bridges mechanism carries out latch bridge to bilateral vehicle bridge respectively；Main latch bridge loop includes main oil feed line, oil supply mechanism is by main oil feed line to latch bridge mechanism fuel feeding, standby latch bridge loop includes standby oil feed line in parallel relative with main oil feed line, and during being broken down in main latch bridge loop, oil supply mechanism is by standby latch bridge loop to latch bridge mechanism fuel feeding.The present invention increases a set of standby hydraulics on the basis of existing latch bridge hydraulic system, can provide latch bridge function using standby hydraulics when main hydraulic system breaks down, and can effectively improve the safety and reliability of two-way ferry bus in operation.Further, since the standby oil supply loop of the present invention is in parallel with main oil supply loop, it can ensure that main hydraulic system works without interfering with each other with standby hydraulics.
Description
Technical field
The present invention relates to bi-directional vehicle technical field, in particular to a kind of dual-way vehicle latch bridge hydraulic system.
Background technology
Existing bi-directional vehicle part uses full hydraulic drive, hydraulic system be mainly used in realizing driving vehicle to run,
Turn to the function with latch bridge.The latch bridge function of hydraulic system, the vehicle bridge that head is mainly driven by driver can be turned to freely,
The vehicle bridge of other end is locked just by hydraulic system and both sides tire is kept vertical with vehicle bridge axis under certain hydraulic pressure.It is existing
There is bi-directional vehicle to be fully loaded with quality typically in 20t or so, travel speed is typically in 30~50Km/h, hydraulic system driving vehicle
Substantial amounts of heat can be produced in walking process, the rise of system oil liquid temperature, causes fluid pressure line aging, hydraulic system fails etc. to be asked
Topic.Hydraulic system latch bridge failure will cause vehicle sideslip under steam, and passenger caused by there is whipping and emergency brake is injured, deposits
In larger potential safety hazard.Meanwhile vehicle under steam breaks down, it will influences the punctuality of passenger's stroke, especially
When bi-directional vehicle is airport ferry push.
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 a kind of reliability
Higher dual-way vehicle latch bridge hydraulic system.
To achieve the above object, the present invention adopts the following technical scheme that：
According to an aspect of the present invention, there is provided a kind of dual-way vehicle latch bridge hydraulic system, wherein, including oil supply mechanism,
Liang Zu latch bridges mechanism, main latch bridge loop and standby latch bridge loop；The Liang Zu latch bridges mechanism is respectively arranged on two-way ferry bus
Bilateral vehicle bridge, to carry out latch bridge to the bilateral vehicle bridge respectively；The main latch bridge circuit communication is in the oil supply mechanism and latch bridge
Between mechanism, it includes main oil feed line, and the oil supply mechanism is by the main oil feed line to latch bridge mechanism fuel feeding, institute
State main oil feed line and be provided with main solenoid directional control valve, with control the main oil feed line selectively communicate with the oil supply mechanism with
One of described Liang Zu latch bridges mechanism；The standby latch bridge circuit communication between the oil supply mechanism and latch bridge mechanism,
It includes standby oil feed line in parallel relative with the main oil feed line, during being broken down in the main latch bridge loop, institute
State oil supply mechanism and standby electricity is provided with to latch bridge mechanism fuel feeding, the standby oil feed line by the standby latch bridge loop
Magnetic reversal valve, with control the standby oil feed line selectively communicate with the oil supply mechanism and the Liang Zu latch bridges mechanism its
One of.
According to one of embodiment of the present invention, the oil supply mechanism includes fuel tank and hydraulic pump；The fuel tank
With oil-out and oil return opening；The hydraulic pump is communicated in the oil-out；Wherein, the main oil feed line and standby fuel feed pump
Road is respectively communicated with the hydraulic pump, and makes the hydraulic pump that the hydraulic oil liquid in the fuel tank is optionally pumped into the master
Oil feed line or standby oil feed line.
According to one of embodiment of the present invention, the hydraulic pump is duplex hydraulic pump, and it has entrance and two
Outlet, the entrance are communicated in the fuel tank, and described two outlets are respectively communicated with the main oil feed line and standby fuel feed pump
Road.
According to one of embodiment of the present invention, the main solenoid directional control valve is the solenoid directional control valve with positioning；With/
Or, the standby solenoid directional control valve is the solenoid directional control valve with positioning.
According to one of embodiment of the present invention, latch bridge mechanism described in every group includes two latch bridge oil cylinders, with respectively
To two wheel locks of every side vehicle bridge just；The main oil feed line has four two level branch roads relatively in parallel, described four two
Level branch road is respectively communicated between four latch bridge oil cylinders and the main solenoid directional control valve.
According to one of embodiment of the present invention, explosion stack mechanism is equipped with every two level branch road, it is described
Explosion stack mechanism is located at the connectivity part of the two level branch road and the latch bridge oil cylinder, with the fluid in any two level branch road
When pressure is less than an explosion stack threshold pression value, the corresponding explosion stack mechanism cuts off the two level branch road.
Included according to one of embodiment of the present invention, in addition to pressure regulating mechanism, the pressure regulating mechanism
Replenishing valve and accumulator；The replenishing valve changes on the main oil feed line positioned at the oil supply mechanism with main electromagnetism
To between valve, the replenishing valve is adjusted up opening and closing to the main oil feed line in its fuel feeding side；The accumulator is communicated in institute
State replenishing valve；Wherein, when lower limit of the oil liquid pressure in the main oil feed line less than a setting pressure limit, the fuel feeding
Mechanism supplements pressure to the main oil feed line, while to the accumulator topping up；Fluid pressure in the main oil feed line
When power is elevated above the upper limit of the setting pressure limit, the oil supply mechanism off-load.
Included according to one of embodiment of the present invention, in addition to pressure alarm mechanism, the pressure alarm mechanism
Pressure switch and warning lamp and buzzer；The pressure switch fills on the main oil feed line, and positioned at described
Between liquid valve and main solenoid directional control valve；The warning lamp and buzzer are electrically connected in the pressure switch；Wherein, it is described
Oil liquid pressure in main oil feed line less than the setting pressure limit lower limit when, the pressure switch is to the warning lamp
With buzzer output alarm signal, to control the warning lamp and buzzer warning.
Included according to one of embodiment of the present invention, in addition to pressure regulating mechanism, the pressure regulating mechanism
Pressure controller and electromagnetic clutch；The pressure controller is located at the fuel feeding machine on the main oil feed line
Between structure and main solenoid directional control valve；The electromagnetic clutch can open and close to be located at the oil supply mechanism, to control the fuel feeding machine
One hydraulic pump of structure and being connected and disconnected from for a power source；Wherein, the pressure controller can be according to the main oil feed line
In oil liquid pressure, to the electromagnetic clutch export multiple switch amount signal, to control the keying of the electromagnetic clutch.
Included according to one of embodiment of the present invention, in addition to pressure alarm mechanism, the pressure alarm mechanism
Warning lamp, buzzer and described pressure controller；Wherein, the oil liquid pressure in the main oil feed line is less than the setting
During the lower limit of pressure limit, the pressure controller output alarm signal, to control the warning lamp and buzzer warning.
As shown from the above technical solution, exist the advantages of dual-way vehicle latch bridge hydraulic system proposed by the present invention with good effect
In：
The present invention provides a kind of dual-way vehicle latch bridge hydraulic system, and it is on the basis of existing latch bridge hydraulic system, increase
A set of standby hydraulics, i.e., the hydraulic system that standby oil supply loop, standby solenoid directional control valve and other related valves groups are formed.
Based on above-mentioned design, can be broken down in main hydraulic system, i.e., main latch bridge loop, main solenoid directional control valve and other related valves groups
When, latch bridge function is provided using standby hydraulics, and the safety and reliability of dual-way vehicle in operation can be effectively improved.
Further, since the standby oil supply loop of the present invention is in parallel with main oil supply loop, main hydraulic system and redundant hydraulic can be ensured
System works without interfering with each other, while in main latch bridge hydraulic system normal work, will not because increased back-up system newly and caused by
Extra energy loss.
Brief description of the drawings
The following detailed description to the preferred embodiment of the present invention, various mesh of the invention are considered in conjunction with the accompanying drawings
Mark, feature and advantage will become apparent.Accompanying drawing is only the exemplary diagram of the present invention, is not necessarily to paint in proportion
System.In the accompanying drawings, same reference represents same or similar part all the time.Wherein：
Fig. 1 is a kind of schematic diagram of dual-way vehicle latch bridge hydraulic system according to an illustrative embodiments；
Fig. 2 is a kind of schematic diagram of dual-way vehicle latch bridge hydraulic system according to another exemplary embodiment.
Wherein, description of reference numerals is as follows：
Dual-way vehicle latch bridge hydraulic system
110. oil supply mechanism；
111. fuel tank；
1111. return filter；
1112. radiator；
112. duplex hydraulic pump；
113. Emergency Hydraulic Pump；
120. latch bridge mechanism；
121. latch bridge oil cylinder；
Main latch bridge loop
131. main oil feed line；
1311. two level branch road；
132. main solenoid directional control valve；
Standby latch bridge loop
141. standby oil feed lines；
1411. two level branch road；
1412. check valve；
142. standby solenoid directional control valves；
150. explosion stack mechanisms；
151. magnetic valve；
152. pressure switch；
160. pressure regulating mechanism；
161. replenishing valve；
162. accumulator；
163. pressure controller；
164. electromagnetic clutch；
Pressure alarm mechanism
171. pressure switch；
172. buzzer；
180. return line；
200. vehicle bridge；
210. wheel.
Embodiment
Embodying the exemplary embodiments of feature of present invention and advantage will describe in detail in the following description.It should be understood that this
Invention can have various changes in different embodiments, and it is neither departed from the scope of the present invention, and it is therein explanation and
Accompanying drawing is inherently illustrative, and is not used to the limitation present invention.
In being described below the different illustrative embodiments to the present invention, carry out referring to the drawings, the accompanying drawing is formed
The part of the present invention, and the different exemplary knots that many aspects of the present invention can be achieved wherein are shown by way of example
Structure, system and step.It should be understood that other specified schemes of part, structure, exemplary means, system and step can be used, and
And structural and functional modification can be carried out without departing from the scope of the invention.Although moreover, it can be used in this specification
Term " on ", " in ", " between ", " side " etc. the different example features of the present invention and element are described, but these terms are used
In this article merely for convenient, for example, with reference to the accompanying drawings described in example direction.Any content in this specification should not
The specific three dimensional direction for being interpreted as Structure of need is just fallen within the scope of the present invention.
Refering to Fig. 1, the dual-way vehicle latch bridge hydraulic system that can embody the principle of the present invention is representatively illustrated in Fig. 1
Schematic diagram.In the illustrative embodiments, dual-way vehicle latch bridge hydraulic system proposed by the present invention is with to two way
The bilateral vehicle bridge 200 of ferry bus illustrated exemplified by the hydraulic lock bridge system of latch bridge.Those skilled in the art are easy
Understand, for by the dual-way vehicle latch bridge hydraulic system applications in other dual-way vehicles or similar devices, and to following
Embodiment makes a variety of remodeling, addition, replacement, deletion or other changes, and these changes are still proposed by the present invention double
To in the range of the principle of vehicle latch bridge hydraulic system.
As shown in figure 1, in the present embodiment, dual-way vehicle latch bridge hydraulic system proposed by the present invention mainly includes fuel feeding
Mechanism 110, Liang Zu latch bridges mechanism 120, main latch bridge loop and standby latch bridge loop.Further, the dual-way vehicle latch bridge liquid
Pressure system can also optionally set explosion stack mechanism 150, pressure regulating mechanism 160 and pressure alarm according to the actual requirements
One of mechanism, wherein any combination are whole.Below in conjunction with accompanying drawing, to dual-way vehicle latch bridge hydraulic pressure proposed by the present invention
Each chief component of system is described in detail.
As shown in figure 1, in the present embodiment, oil supply mechanism 110 mainly includes fuel tank 111 and hydraulic pump.Fuel tank 111
With oil-out and oil return opening.Hydraulic pump can be preferably duplex hydraulic pump 112, and it has entrance and two outlets, the entrance
The oil-out of fuel tank 111 is communicated in, this two outlets are respectively communicated with main oil feed line 131 and standby latch bridge in main latch bridge loop
The standby oil feed line 141 in loop.By said structure, duplex hydraulic pump 112 can select the hydraulic oil liquid in fuel tank 111
Property ground pump becomes owner of oil feed line 131 or standby oil feed line 141.In addition, the tool for main latch bridge loop and standby latch bridge loop
Body explanation will be carried out in detail follow-up, will not be described here.It will be readily appreciated by those skilled in the art that for optionally to master
Latch bridge loop or standby latch bridge loop carry out fuel feeding, and structure, type selecting or the annexation of above-mentioned oil supply mechanism 110 are made more
Kind is retrofited, added, substituting, deleting or other change, and these change still in dual-way vehicle latch bridge hydraulic system proposed by the present invention
Principle in the range of.For example, in other illustrative embodiments of the present invention, hydraulic pump is not limited to duplex hydraulic pump
112.General type or the hydraulic pump of single quantity also can be selected in hydraulic pump, and installs shunt canalisation and relevant control additional in its outlet
Valve group, realize optionally to main latch bridge loop or standby latch bridge loop fuel feeding, can further reduce production cost.Hydraulic pump is also
The form of two hydraulic pumps being independently arranged can be selected, be respectively communicated with main latch bridge loop or standby latch bridge loop, with selectivity
Ground can further lift the reliability of oil supply mechanism 110 to the two fuel feeding.
As shown in figure 1, in the present embodiment, Liang Zu latch bridges mechanism 120 is respectively arranged on the bilateral vehicle bridge of two-way ferry bus
200, to carry out latch bridge to bilateral vehicle bridge 200 respectively.Specifically, every group of latch bridge mechanism 120 includes two latch bridge oil cylinders 121,
To be locked just to two wheels 210 of every side vehicle bridge 200 respectively.
As shown in figure 1, in the present embodiment, main latch bridge circuit communication in oil supply mechanism 110 and latch bridge mechanism 120 it
Between, and hydraulic circuit is substantially formed by main oil feed line 131 and return line 180.Wherein, oil supply mechanism 110 passes through main fuel feeding
Pipeline 131 is to the fuel feeding of latch bridge mechanism 120.Specifically, main oil feed line 131 has with the connectivity part branch of latch bridge mechanism 120
There are four two level branch roads 1311 relatively in parallel, this four two level branch roads 1311 are respectively communicated with four latch bridge oil cylinders 121 and master
Between solenoid directional control valve 132, independently fuel feeding, does not interfere with each other.Main oil feed line 131 is provided with main solenoid directional control valve 132, and
Between duplex hydraulic pump 112 and latch bridge mechanism 120 (that is, position before four two level branch roads 1311), to control main confession
Oil pipe line 131 selectively communicates with one of oil supply mechanism 110 and Liang Zu latch bridges mechanism 120, so as in main latch bridge loop
During normal work, realize and the selectivity of the both sides vehicle bridge 200 of two-way ferry bus is locked just.It is preferred that in the present embodiment, it is main
Solenoid directional control valve 132 can be preferably the solenoid directional control valve that band positions, such as the three-position four-way valve of H functions, but not as
Limit.It will be readily appreciated by those skilled in the art that to set above-mentioned main latch bridge loop, and to its structure, annexation or pipeline
Layout makes a variety of remodeling, addition, replacement, deletion or other changes, and these changes are still locked in dual-way vehicle proposed by the present invention
In the range of the principle of bridge hydraulic system.
Further, as shown in figure 1, in the present embodiment, can also additionally set an Emergency Hydraulic Pump 113.It is specific and
Speech, the Emergency Hydraulic Pump 113 are connected in fuel tank 111 and main solenoid directional control valve in a manner of relatively in parallel with duplex hydraulic pump 112
Between 132, and further connect between fuel tank 111 and pressure regulating mechanism 160.By the setting of the Emergency Hydraulic Pump 113,
Emergent fuel feeding can be carried out when the hydraulic pump of oil supply mechanism 110 breaks down.
As shown in figure 1, in the present embodiment, standby latch bridge circuit communication in oil supply mechanism 110 and latch bridge mechanism 120 it
Between, and hydraulic circuit is substantially formed by standby oil feed line 141 and return line 180.Wherein, standby oil feed line 141 and master
Oil feed line 131 is relative to be arranged in parallel, during being broken down in main latch bridge loop so that oil supply mechanism 110 can be by standby
Latch bridge loop is to the fuel feeding of latch bridge mechanism 120.Standby oil feed line 141 is provided with standby solenoid directional control valve 142, to control standby confession
Oil pipe line 141 selectively communicates with one of oil supply mechanism 110 and Liang Zu latch bridges mechanism 120, so as in main latch bridge loop
When failure and the standby latch bridge loop of use, realize and the selectivity of the both sides vehicle bridge 200 of two-way ferry bus is locked just.It is preferred that
In present embodiment, standby solenoid directional control valve 142 can be preferably with the solenoid directional control valve positioned, such as three four of H functions
Port valve, but be not limited thereto.It will be readily appreciated by those skilled in the art that to set above-mentioned standby latch bridge loop, and to it
Structure, annexation or pipe-line layout make a variety of remodeling, addition, replacement, deletion or other changes, and these changes are still in this hair
In the range of the principle of the dual-way vehicle latch bridge hydraulic system of bright proposition.
It should be noted that as shown in figure 1, in the present embodiment, main latch bridge loop and standby latch bridge loop share one
Group return line 180, the return line 180 is communicated in the oil return opening of fuel tank 111, and causes return line 180 in oil supply mechanism
Between 110 and latch bridge mechanism 120, two sets of hydraulic pressure can be formed with main oil feed line 131 and standby oil feed line 141 respectively and returned
Road.Further, it is communicated in return line 180 at the oil return opening of fuel tank 111, radiator 1112 and oil return can be also additionally set
At least one of filter 1111, with respectively to by return line 180 flow back hydraulic oil liquid carry out radiating and cooling and
Filtering.When simultaneously radiator 1112 and return filter 1111 are set when, both mode of communicating be preferably connect, but not with
This is limited.In addition, also it can be selected in fuel tank 111 of the oil return opening with radiator 1112 and return filter 1111, or from it
He has other existing fuel tanks of radiating and filtering function.
As shown in figure 1, in the present embodiment, explosion stack mechanism 150 is four, and is separately positioned on every two level branch road
On 1311.Wherein, each explosion stack mechanism 150 is located at the connectivity part of corresponding two level branch road 1311 and latch bridge oil cylinder 121, with
When oil liquid pressure in any secondary branch road 1311 is less than an explosion stack threshold pression value, pass through corresponding explosion stack mechanism 150
Cut off the two level branch road 1311.Specifically, each explosion-proof pipe device includes magnetic valve 151 and pressure switch 152, and electromagnetism
Valve 151 and pressure switch 152 are located on corresponding two level branch road 1311 with tandem.Magnetic valve 151 selectively communicates with
Or cut off the two level branch road 1311.When booster occurs for a certain two level branch road 1311, the oil liquid pressure in two level branch road 1311 is fast
Speed is reduced to below a setting value of pressure switch 152, while pressure switch 152 sends switching signal, controls magnetic valve
151 cut off the two level branch road 1311.It will be readily appreciated by those skilled in the art that to set above-mentioned explosion stack mechanism 150, and it is right
Its structure, type selecting or connected mode make a variety of remodeling, addition, replacement, deletion or other changes, and these changes are still in the present invention
In the range of the principle of the dual-way vehicle latch bridge hydraulic system of proposition.
It should be noted that as shown in figure 1, in the present embodiment, standby oil feed line 141 is by standby solenoid directional control valve
142 lead to the part of latch bridge mechanism 120, and also branch is four two level branch roads 1411.This four two level branch roads 1411 are relatively in parallel,
And it is respectively communicated between standby solenoid directional control valve 142 and four two level branch roads 1311 of main oil feed line 131.Specifically,
For each two level branch road 1411, its one end is communicated in standby solenoid directional control valve 142, and the other end can by a check valve 1412
Open and close ground be communicated in corresponding to two level branch road 1311, and be preferably located in the two level branch road 1311 magnetic valve 151 and pressure after
Between electrical equipment 152.Further, since the setting of four check valves 1412 so that four two level branch roads 1411 and four two level branch roads
1311 can respectively selectively keep apart, and ensure main latch bridge loop with being independent of each other during standby latch bridge loop works.
As shown in figure 1, in the present embodiment, pressure regulating mechanism 160 mainly includes replenishing valve 161 and is communicated in fill
The accumulator 162 of liquid valve 161.Specifically, replenishing valve 161 is on the main oil feed line 131, and positioned at oil supply mechanism 110 with
Between main solenoid directional control valve 132, replenishing valve 161 is adjusted up opening and closing to main oil feed line 131 in its fuel feeding side.When main fuel feed pump
When oil liquid pressure in road 131 sets the lower limit of pressure limit less than one, oil supply mechanism 110 is supplemented main oil feed line 131 and pressed
Power, while to the topping up of accumulator 162, when the oil liquid pressure in main oil feed line 131 is elevated above setting the upper limit of pressure limit
When, then the off-load of oil supply mechanism 110.It will be readily appreciated by those skilled in the art that to set above-mentioned pressure regulating mechanism 160, and
A variety of remodeling, addition, replacement, deletion or other changes are made to its structure, type selecting or connected mode, these changes are still in this hair
In the range of the principle of the dual-way vehicle latch bridge hydraulic system of bright proposition.
As shown in figure 1, in the present embodiment, pressure alarm mechanism mainly includes pressure switch 171 and warning lamp
With buzzer 172.Specifically, pressure switch 171 is on main oil feed line 131, and is located at pressure regulating mechanism 160
Between replenishing valve 161 and main solenoid directional control valve 132, warning lamp and buzzer 172 are electrically connected in pressure switch 171.When
Oil liquid pressure in main oil feed line 131 less than setting pressure limit lower limit when, pressure switch 171 is to warning lamp and buzzing
The output alarm signal of device 172, to control the warning lamp being arranged on operating desk to light, while buzzer 172 is controlled to alarm.Ability
Field technique personnel are it is easily understood that be the above-mentioned pressure alarm mechanism of setting, and its structure, type selecting or connected mode are made more
Kind is retrofited, added, substituting, deleting or other change, and these change still in dual-way vehicle latch bridge hydraulic system proposed by the present invention
Principle in the range of.
It should be noted here that the dual-way vehicle latch bridge hydraulic system for showing in accompanying drawing and describing in this manual is only
An example in many kinds of dual-way vehicle latch bridge hydraulic systems of the principle of the invention can be used.It should be clearly understood that this
The principle of invention be only limitted to show in accompanying drawing absolutely not or this specification described in dual-way vehicle latch bridge hydraulic system it is any thin
Any part of section or dual-way vehicle latch bridge hydraulic system.
For example, as shown in Fig. 2 it representatively illustrates the dual-way vehicle latch bridge that can embody the principle of the present invention
Another embodiment of hydraulic system.In the illustrative embodiments, pressure regulating mechanism 160 mainly includes pressure controller
163 and electromagnetic clutch 164.Specifically, pressure controller 163 is on main oil feed line 131, and is located at oil supply mechanism
Between 110 and main solenoid directional control valve 132.Electromagnetic clutch 164 can open and close to be located at oil supply mechanism 110, to control oil supply mechanism
110 hydraulic pump is connected and disconnected from a power source.Based on above-mentioned design, pressure controller 163 can be according to main fuel feeding
Oil liquid pressure in pipeline 131, multiple switch amount signal is exported to electromagnetic clutch 164, to control opening for electromagnetic clutch 164
Close.In addition, type selecting and connected mode based on the pressure regulating mechanism 160 in the embodiment, pressure alarm mechanism can leave out
Pressure switch 171, and on the basis of warning lamp and buzzer 172 is retained, utilize the Stress control of pressure regulating mechanism 160
A part of the device 163 as pressure alarm mechanism.Specifically, when the oil liquid pressure in main oil feed line 131 is pressed less than setting
During the lower limit of power scope, the output alarm signal of pressure controller 163, to control warning lamp to light, while buzzer 172 is controlled to report
It is alert.
In summary, the present invention provides a kind of dual-way vehicle latch bridge hydraulic system, its base in existing latch bridge hydraulic system
On plinth, increase a set of standby hydraulics, i.e., standby oil supply loop, standby solenoid directional control valve 142 and other related valves group institute groups
Into hydraulic system.Based on above-mentioned design, can in main hydraulic system, i.e., main latch bridge loop, main solenoid directional control valve 132 and other
When related valve group breaks down, latch bridge function is provided using standby hydraulics, and two-way ferry bus can be effectively improved and run
In safety and reliability.Further, since the standby oil supply loop of the present invention is in parallel with main oil supply loop, can ensure to lead
Hydraulic system works without interfering with each other with standby hydraulics, while in main latch bridge hydraulic system normal work, will not be because new
Increase back-up system and cause extra energy loss.
Exemplary implementation that is described in detail above and/or illustrating dual-way vehicle latch bridge hydraulic system proposed by the present invention
Mode.But embodiments of the present invention are not limited to particular implementation as described herein, on the contrary, the composition of each embodiment
Part and/or step can be independent with other parts as described herein and/or step and are used separately.One embodiment
Each part and/or each step can be also used in combination with the other parts and/or step of other embodiment.
Introducing described here and/or diagram key element/part/when waiting, term "one", " one " and " above-mentioned " etc. be to table
Show exist one or more elements/part/etc..Term "comprising", " comprising " and " having " are representing open bag
Looking like and referring to that other key element/composition portion also may be present in the key element except listing/part/in addition to waiting including including
Point/etc..
Although dual-way vehicle latch bridge hydraulic system proposed by the present invention is retouched according to different specific embodiments
State, but it will be recognized by those skilled in the art implementation of the invention can be changed in the spirit and scope of the claims
It is dynamic.
Claims (10)
- A kind of 1. dual-way vehicle latch bridge hydraulic system, it is characterised in that including：Oil supply mechanism (110)；Liang Zu latch bridges mechanism (120), the bilateral vehicle bridge (200) of two-way ferry bus is respectively arranged on, with respectively to the bilateral vehicle bridge (200) latch bridge is carried out；Main latch bridge loop, it is communicated between the oil supply mechanism (110) and latch bridge mechanism (120), it includes main oil feed line (131), the oil supply mechanism (110) by the main oil feed line (131) to latch bridge mechanism (120) fuel feeding, the master Oil feed line (131) is provided with main solenoid directional control valve (132), to control the main oil feed line (131) to selectively communicate with institute State one of oil supply mechanism (110) and the Liang Zu latch bridges mechanism (120)；AndStandby latch bridge loop, it is communicated between the oil supply mechanism (110) and latch bridge mechanism (120), it includes and the main confession Oil pipe line (131) standby oil feed line (141) relatively in parallel, during being broken down in the main latch bridge loop, the fuel feeding Mechanism (110) by the standby latch bridge loop to latch bridge mechanism (120) fuel feeding, on the standby oil feed line (141) Provided with standby solenoid directional control valve (142), to control the standby oil feed line (141) to selectively communicate with the oil supply mechanism One of (110) with the Liang Zu latch bridges mechanism (120).
- 2. dual-way vehicle latch bridge hydraulic system according to claim 1, it is characterised in that oil supply mechanism (110) bag Include：Fuel tank (111), there is oil-out and oil return opening；AndHydraulic pump, it is communicated in the oil-out；Wherein, the main oil feed line (131) and standby oil feed line (141) are respectively communicated with the hydraulic pump, and are made described Hydraulic oil liquid in the fuel tank (111) is optionally pumped into the main oil feed line (131) or standby fuel feed pump by hydraulic pump Road (141).
- 3. dual-way vehicle latch bridge hydraulic system according to claim 2, it is characterised in that the hydraulic pump is duplex hydraulic pressure Pump (112), it has entrance and two outlets, and the entrance is communicated in the fuel tank (111), and described two outlets are respectively communicated with In the main oil feed line (131) and standby oil feed line (141).
- 4. dual-way vehicle latch bridge hydraulic system according to claim 1, it is characterised in that the main solenoid directional control valve (132) it is the solenoid directional control valve with positioning；And/or the standby solenoid directional control valve (142) is the solenoid directional control valve with positioning.
- 5. the dual-way vehicle latch bridge hydraulic system according to any one of Claims 1 to 4, it is characterised in that lock described in every group Bridge mechanism (120) includes two latch bridge oil cylinders (121), to be locked just to two wheels (210) of every side vehicle bridge (200) respectively；Institute Main oil feed line (131) is stated with four two level branch roads (1311) relatively in parallel, four two level branch roads (1311) are respectively It is communicated between four latch bridge oil cylinders (121) and the main solenoid directional control valve (132).
- 6. dual-way vehicle latch bridge hydraulic system according to claim 5, it is characterised in that every two level branch road (1311) be equipped with explosion stack mechanism (150) on, the explosion stack mechanism (150) be located at the two level branch road (1311) with it is described The connectivity part of latch bridge oil cylinder (121), an explosion stack lower limit is less than with the oil liquid pressure in any two level branch road (1311) During pressure value, the corresponding explosion stack mechanism (150) cuts off the two level branch road (1311).
- 7. dual-way vehicle latch bridge hydraulic system according to claim 5, it is characterised in that also including pressure regulating mechanism (160), the pressure regulating mechanism (160) includes：Replenishing valve (161), on the main oil feed line (131), and positioned at the oil supply mechanism (110) and main electromagnetic switch Between valve (132), the replenishing valve (161) is adjusted up opening and closing to the main oil feed line (131) in its fuel feeding side；AndAccumulator (162), it is communicated in the replenishing valve (161)；Wherein, when lower limit of the oil liquid pressure in the main oil feed line (131) less than a setting pressure limit, the fuel feeding Mechanism (110) supplements pressure to the main oil feed line (131), while to the accumulator (162) topping up；When the main fuel feeding When oil liquid pressure in pipeline (131) is elevated above the upper limit of the setting pressure limit, oil supply mechanism (110) off-load.
- 8. dual-way vehicle latch bridge hydraulic system according to claim 7, it is characterised in that also including pressure alarm mechanism, The pressure alarm mechanism includes：Pressure switch (171), changed on the main oil feed line (131), and positioned at the replenishing valve (161) with main electromagnetism To between valve (132)；AndWarning lamp and buzzer (172), are electrically connected in the pressure switch (171)；Wherein, when the oil liquid pressure in the main oil feed line (131) is less than the lower limit of the setting pressure limit, the pressure Relay (171) is to the warning lamp and buzzer (172) output alarm signal, to control the warning lamp and buzzer (172) alarm.
- 9. dual-way vehicle latch bridge hydraulic system according to claim 5, it is characterised in that also including pressure regulating mechanism (160), the pressure regulating mechanism (160) includes：Pressure controller (163), on the main oil feed line (131), and positioned at the oil supply mechanism (110) and main electromagnetism Between reversal valve (132)；AndElectromagnetic clutch (164), it can open and close to be located at the oil supply mechanism (110), to control the one of the oil supply mechanism (110) Hydraulic pump is connected and disconnected from a power source；Wherein, the pressure controller (163) can be according to the oil liquid pressure in the main oil feed line (131), to the electricity Magnet clutch (164) exports multiple switch amount signal, to control the keying of the electromagnetic clutch (164).
- 10. dual-way vehicle latch bridge hydraulic system according to claim 9, it is characterised in that also including pressure alarm mechanism, The pressure alarm mechanism includes warning lamp, buzzer (172) and described pressure controller (163)；Wherein, the main confession When oil liquid pressure in oil pipe line (131) is less than the lower limit of the setting pressure limit, pressure controller (163) the output report Alert signal, to control the warning lamp and buzzer (172) to alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874645.7A CN107882821A (en) | 2016-09-30 | 2016-09-30 | Dual-way vehicle latch bridge hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874645.7A CN107882821A (en) | 2016-09-30 | 2016-09-30 | Dual-way vehicle latch bridge hydraulic system |
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| Publication Number | Publication Date |
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| CN107882821A true CN107882821A (en) | 2018-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610874645.7A Pending CN107882821A (en) | 2016-09-30 | 2016-09-30 | Dual-way vehicle latch bridge hydraulic system |
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| CN (1) | CN107882821A (en) |
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Application publication date: 20180406 |