CN108202757A - Steering lock bridge control system and the bi-directional vehicle with the system - Google Patents
Steering lock bridge control system and the bi-directional vehicle with the system Download PDFInfo
- Publication number
- CN108202757A CN108202757A CN201611169864.1A CN201611169864A CN108202757A CN 108202757 A CN108202757 A CN 108202757A CN 201611169864 A CN201611169864 A CN 201611169864A CN 108202757 A CN108202757 A CN 108202757A
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- Prior art keywords
- bridge
- steering
- latch
- solenoid valve
- vehicle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
Abstract
The present invention discloses a kind of steering lock bridge control system and the bi-directional vehicle with the system, and steering lock bridge control system includes two turning machines, two latch bridge hydraulic cylinders, oil supply mechanism and control valve group；Two turning machines are respectively arranged on A, B both ends, its steering is controlled to push one end of two vehicle bridge respectively；Two latch bridge hydraulic cylinders are respectively arranged on A, B both ends, to lock the other end of just two vehicle bridge respectively；Oil supply mechanism includes fuel tank and steering pump, and fuel tank passes through latch bridge circuit communication in two latch bridge hydraulic cylinders by turning to circuit communication in two turning machines；Control valve group, which is set on, turns to circuit and latch bridge circuit, to control fuel tank selectively to one of two latch bridge hydraulic cylinders fuel feeding, and selectively to one of two turning machines fuel feeding.The present invention reduces latch bridge hydraulic cylinders.While the fuel feeding to latch bridge hydraulic cylinder and turning machine is completed using steering pump, reduce individually to the gear pump of latch bridge mechanism fuel feeding.
Description
Technical field
The present invention relates to power-assisted steering and latch bridge control technology, in particular to a kind of steering lock bridge control system and
Bi-directional vehicle with the steering lock bridge control system.
Background technology
Bi-directional vehicle is quickly grown in current passenger and freight transportation.Such as airport ferry push, travel to and fro between terminal with
Boarding is picked between remote seat in the plane aircraft and the passenger that disembarks, suitable for the station level ground of each Civil Aviation Airport and place.Two way ferry bus
It is mainly used for smaller airport, when driver needs to turn around in driving procedure, need to only converts to other end and drive.
The steering of two way ferry bus and latch bridge are mainly by servo steering system, latch bridge and latch bridge switching system, steering
The compositions such as steerable system and steer drive.Current most of two way ferry buses use hydraulic power-assist steering system and liquid
The power-assisted steering of two sets of hydraulic systems realization driver side vehicle bridge of pressure latch bridge system and opposite side vehicle bridge follow hydraulic lock during walking
Bridge, the switching of steering and latch bridge system are completed by electric-control system.The steering of two way ferry bus and latch bridge system are
A set of mechanical, electrical, liquid technology complex control system of fusion.
Existing bi-directional vehicle generally use engine behind front wheel, preceding bridge drive form.Two way ferry front axle and
Rear axle is steeraxle, and can be locked just by hydraulic lock bridge mechanism.Relative to one-way traffic vehicle, bi-directional vehicle turns
Be two sets to system and latch bridge system, the side before and after vehicle respectively so that vehicle complicated in mechanical structure, be not easy to installation and
Layout.Positive vehicle bridge is locked by two pieces latch bridge oil cylinder per lock set bridge mechanism, connection and arrangement of the latch bridge oil cylinder in vehicle bridge are by vehicle
The limitation of bridge structure, installation space are limited, and cylinder force is complicated, influence the service life of oil cylinder.
Invention content
A primary object of the present invention is to overcome at least one defect of the above-mentioned prior art, provide a kind of installation and
It is laid out convenient steering lock bridge control system.
The present invention another main purpose be to overcome at least one defect of the above-mentioned prior art, a kind of vehicle is provided
Bi-directional vehicle simple in structure.
To achieve the above object, the present invention adopts the following technical scheme that：
According to an aspect of the present invention, a kind of steering lock bridge control system is provided, is installed on dual-way vehicle, it is described two-way
Vehicle includes being respectively arranged on two vehicle bridge at its A, B both ends, wherein, the steering lock bridge control system include two turning machines,
Two latch bridge hydraulic cylinders, oil supply mechanism and control valve group；Described two turning machines are respectively arranged on A, B both ends, with respectively
It pushes one end of described two vehicle bridge and controls its steering；Described two latch bridge hydraulic cylinders are respectively arranged on A, B both ends, to divide
The other end of just described two vehicle bridge is not locked；The oil supply mechanism includes fuel tank and steering pump, and the fuel tank is by turning to circuit
Described two turning machines are communicated in, and pass through latch bridge circuit communication in described two latch bridge hydraulic cylinders；The control valve group is set on
The steering circuit and the latch bridge circuit, to control the oil supply mechanism selectively its to described two latch bridge hydraulic cylinders
One of fuel feeding, and selectively to one of described two turning machines fuel feeding；Wherein, during A driving, the control valve
Group controls the turning machine and latch bridge hydraulic cylinder while fuel feeding of the oil supply mechanism to B, and locks vehicle bridge B described
Just, the control valve group controls the oil supply mechanism to be converted to the turning machine fuel feeding to A again；During B driving, with A heads
Control planning during driving is corresponding.
One of embodiment according to the present invention, the control valve group include the first solenoid valve and two second electricity
Magnet valve；Described first solenoid valve one end is connected to the steering pump, and the other end is connected respectively by electromagnet DTA and electromagnet DTB
It is connected to the latch bridge hydraulic cylinder of described B and A；Described two second solenoid valve one end are all connected to the steering pump, the other end
Latch bridge hydraulic cylinder B described and turning machine A described and institute are connected to by electromagnet DTA and electromagnet DTB
State the latch bridge hydraulic cylinder of A and turning machine B described.
One of embodiment according to the present invention, when locking A positive, the electromagnet DTB and two of first solenoid valve
The electromagnet DTA of a second solenoid valve obtains electric；When locking B positive, the electromagnet DTA of first solenoid valve and two the second electromagnetism
The electromagnet DTB of valve obtains electric；A or B are completed lock timing, first solenoid valve and the middle position work of two second solenoid valves
Make；A when turning to, the electromagnet DTA of a second solenoid valve obtains electric；During B steerings, the electricity of another second solenoid valve
Magnet DTB obtains electric.
One of embodiment according to the present invention, the control valve group further includes two pressure controllers, right respectively
It should be in described two latch bridge hydraulic cylinders, to detect the fluid pressure being located in the pipeline of A and B in the latch bridge circuit respectively
Power；Wherein, when the oil liquid pressure in the latch bridge circuit of A or B is more than or equal to a setting pressure upper limit value, the pressure
Controller output bridge lock positive signal, and position in first solenoid valve is controlled to work, control the second solenoid valve switching electromagnetism
Iron.
One of embodiment according to the present invention, further includes emergency pump, is connected to by the steering circuit
Between the fuel tank and described two turning machines, and the fuel tank and described two latch bridge liquid are connected to by the latch bridge circuit
Between cylinder pressure；Wherein, when the oil liquid pressure in the latch bridge circuit of A or B is less than or equal to a setting threshold pression value, institute
Stating pressure controller controls the emergency pump to supplement pressure from the fuel tank to the A or B latch bridge hydraulic cylinders.
One of embodiment according to the present invention, the control valve group further include two groups of solenoid valve blocks, correspond to respectively
In described two turning machines；Solenoid valve block described in one of which is set between a second solenoid valve and a turning machine；
It is another to be mounted between another second solenoid valve and another turning machine；Solenoid valve block described in every group includes two thirds
Solenoid valve, one of them is connected between the second solenoid valve and the turning machine, another be connected to the turning machine with
Between the oil return line for turning to circuit.
One of embodiment according to the present invention, the control valve group further includes two the 4th solenoid valves, right respectively
It should be in described two latch bridge hydraulic cylinders；One of them described 4th solenoid valve one end connects the electromagnetism of first solenoid valve simultaneously
The electromagnet DTB of iron DTA and a second solenoid valve, the other end connect a latch bridge hydraulic cylinder；Described in another
4th solenoid valve one end connects the electromagnet DTB of first solenoid valve and the electromagnet of another second solenoid valve simultaneously
DTA, the other end connect another latch bridge hydraulic cylinder.
One of embodiment according to the present invention, each turning machine include hydraulic steering cylinder and motor valve；
The hydraulic steering cylinder is connected with a steering transmission linkage, the steering transmission linkage to be controlled adjustably to push against A or B heads
The vehicle bridge；The motor valve is connected with a steering apparatus, with by manipulating described in the steering apparatus drive
Motor valve controls the hydraulic steering cylinder action.
One of embodiment according to the present invention, each steering transmission linkage have bridge lock positive position sensing
Device, set on one end of the pushing and pressing vehicle bridge of the steering transmission linkage, to control the oil supply mechanism in the control valve group
To the turning machine and latch bridge hydraulic cylinder simultaneously fuel feeding when and during latch bridge, detect whether the vehicle bridge locks just.
According to another aspect of the present invention, it proposes a kind of bi-directional vehicle, has and be respectively arranged on the two of its A, B both ends
A vehicle bridge, wherein, the bi-directional vehicle includes such as claim 1~9 any one of them steering lock bridge control system；Its
In, A when driving, the control valve group controls the oil supply mechanism to be supplied simultaneously to the turning machine and latch bridge hydraulic cylinder of B
Oil, and vehicle bridge B described is made to lock just, the control valve group controls the oil supply mechanism to be converted to the steering to A again
Machine fuel feeding；During B driving, control planning when being driven with A is corresponding.
As shown from the above technical solution, steering lock bridge control system proposed by the present invention and the two way with the system
The advantages of vehicle and good effect are：
The present invention is realized to the lock of vehicle bridge using latch bridge hydraulic cylinder and turning machine jointly just, compared with prior art, per each
Driver side reduces a latch bridge hydraulic cylinder.Meanwhile the present invention is completed using steering pump to latch bridge hydraulic cylinder and turning machine
Fuel feeding, compared with prior art, reduce individually to the gear pump of latch bridge mechanism fuel feeding.Therefore, the present invention effectively simplifies
The latch bridge and servo steering system of existing bi-directional vehicle.In addition, the simplification based on above-mentioned hydraulic test so that the present invention
Compared with traditional technology, the setting of fluid pipeline is further simplified.
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.Attached drawing is only the exemplary diagram of the present invention, is not necessarily to paint in proportion
System.In the accompanying drawings, same reference numeral always shows same or similar component.Wherein：
Fig. 1 is the hydraulic schematic according to a kind of steering lock bridge control system shown in an illustrative embodiments；
Fig. 2 is the side view according to a kind of bi-directional vehicle shown in an illustrative embodiments；
Fig. 3 is the bottom view of bi-directional vehicle shown in Fig. 2.
Wherein, the reference numerals are as follows：
110a. vehicle bridge；
110b. vehicle bridge；
120a. steering wheel；
120b. steering wheel；
131. steering apparatus；
132. steering transmission linkage；
1321. pitman arm
1322. steering drag link
1321. bridges lock positive position sensor；
210a. turning machine；
210b. turning machine；
211. hydraulic steering cylinder；
212. motor valve；
220a. latch bridge hydraulic cylinders；
220b. latch bridge hydraulic cylinders；
230. fuel tank；
241. steering pump；
242. emergency pump；
251. first solenoid valves；
2521. second solenoid valve；
2522. second solenoid valve；
2531. third solenoid valve；
2532. third solenoid valve；
2533. third solenoid valve；
2534. third solenoid valve；
The 4th solenoid valves of 254a.；
The 4th solenoid valves of 254b.；
261. pressure controller；
262. pressure controller.
Specific 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 variations in different embodiments, neither depart from the scope of the present invention, and it is therein explanation and
Attached drawing is inherently illustrative rather than to limit the present invention.
In being described below the different illustrative embodiments to the present invention, carried out with reference to attached drawing, the attached drawing is formed
The part of the present invention, and the exemplary knot of difference for many aspects that the present invention can be achieved wherein is shown by way of example
Structure, system and step.It should be understood that other specified schemes of component, 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 it moreover, can be used in this specification
Term " end ", " between ", " side " etc. the different example features of the present invention and element described, but these terms are for this
Merely for convenient in text, for example, with reference to the accompanying drawings described in exemplary direction.Any content in this specification all should not be understood
Specific three dimensional direction for Structure of need is just fallen within the scope of the present invention.
Steering lock bridge control system embodiment
Refering to Fig. 1, the liquid for the steering lock bridge control system that can embody the principle of the present invention is representatively illustrated in Fig. 1
Press system schematic.In the illustrative embodiments, steering lock bridge control system proposed by the present invention is put with two way
Cross for vehicle what is illustrated.It will be readily appreciated by those skilled in the art that for the steering lock bridge control system is applied to it
The bi-directional vehicle of his type, and following specific embodiments is made it is a variety of remodeling, addition, substitute, delete or other
Variation, these variations are still in the range of the principle of steering lock bridge control system proposed by the present invention.
As shown in Figure 1, in the present embodiment, steering lock bridge control system proposed by the present invention can be applied to two way
In vehicle.The bi-directional vehicle has A and B and positioned at A and two the vehicle bridge 110a, 110b of B.The steering lock
Bridge control system mainly includes two turning machines 210a, 210b, two latch bridge hydraulic cylinders 220a, 220b, oil supply mechanism and control
Valve group processed.Below in conjunction with attached drawing, each major part of steering lock bridge control system proposed by the present invention is described in detail.
As shown in Figure 1, in the present embodiment, two turning machines 210a, 210b are respectively arranged on A, B both ends, to push away respectively
It moves one end of two vehicle bridge 110a, 110b and controls its steering.Wherein, each turning machine 210a, 210b mainly include turning to liquid
Cylinder pressure 211 and motor valve 212.Specifically, hydraulic steering cylinder 211 is connected with a steering transmission linkage 132, turned to controlling
Transmission device 132 adjustably pushes against the vehicle bridge 110a of A or B, 110b, and motor valve 212 is connected with a steering apparatus
131, to drive motor valve 212 that hydraulic steering cylinder 211 is controlled to act by manipulating steering apparatus 131.In addition, two way
Both direction the disk 120a, 120b at A, B both ends of vehicle connect two steering apparatus 131 respectively, that is, driver passes through behaviour
Longitudinal direction disk 120a, 120b, drive steering apparatus 131 to control motor valve 212, and motor valve 212 controls hydraulic steering cylinder 211
Steering transmission linkage 132 is pushed, steering transmission linkage 132 acts on vehicle bridge 110a, 110b to drive its steering.It is in addition, each
Steering transmission linkage 132 has bridge lock positive position sensor 1321, set on the pushing and pressing vehicle bridge 110a of steering transmission linkage 132,
One end of 110b, to control oil supply mechanism in control valve group, to turning machine 210a, 210b and latch bridge hydraulic cylinder 220a, 220b are simultaneously
During fuel feeding and during latch bridge, vehicle bridge 110a is detected, whether 110b locks just.When side vehicle bridge 110a, 110b lock timings, bridge lock positive position
Sensor 1321 is triggered, and the vehicle bridge 110a, 110b on the driver's cabin controller dial plate of vehicle bridge 110a, 110b sides are unlocked just
Indicator light goes out, and driver side vehicle bridge 110a, 110b is prompted to lock just, then opposite side vehicle bridge 110a, and 110b can be initially as
Driver side drives.
As shown in Figure 1, in the present embodiment, two latch bridge hydraulic cylinders 220a, 220b are respectively arranged on A, B both ends, to divide
The other end of just two vehicle bridge 110a, 110b are not locked.That is, for being driven in the driver side of A, then need first to B
Vehicle bridge 110b is locked just, and the hydraulic steering cylinder 211 of the turning machine 210b of latch bridge hydraulic cylinder 220b and B of B is simultaneously at this time
Work, i.e., under the collective effect of latch bridge hydraulic cylinder 220b and turning machine 210b, the both ends of the vehicle bridge 110b are pushed against or are locked
Just, make vehicle bridge 110b that can not continue to turn to, so as to fulfill side vehicle bridge 110b lock just.Later, driver can be moved to A and drive
It sails, the hydraulic steering cylinder 211 of the turning machine 210a of A works at this time, and the latch bridge hydraulic cylinder 220a of A does not work, i.e. the vehicle of A
Bridge 110a can be turned to.
As shown in Figure 1, in the present embodiment, oil supply mechanism mainly includes fuel tank 230 and steering pump 241, and pass through and turn
To circuit communication in two turning machines 210a, 210b, and pass through latch bridge circuit communication in two latch bridges hydraulic cylinder 220a, 220b,
With respectively to two turning machine 210a, 210b and two latch bridge hydraulic cylinder 220a, 220b fuel feeding.Wherein, fuel tank 230 passes through this turn
To pump 241 simultaneously adjustably to turning machine 210a, 210b or latch bridge hydraulic cylinder 220a, 220b fuel feeding, without existing hydraulic pressure system
The latch bridge oil pump of latch bridge mechanism fuel feeding is individually in system.Wherein, fuel tank 230 by the steering pump 241 to turning machine 210a, 210b
Or the concrete mode of latch bridge hydraulic cylinder 220a, 220b fuel feeding can combine and the explanation of control valve group is further understood below.
As shown in Figure 1, in the present embodiment, control valve group, which is set on, turns to circuit and latch bridge circuit, to control fuel tank 230
Selectively to one of two latch bridge hydraulic cylinders 220a, 220b fuel feeding, and selectively to two turning machine 210a,
One of 210b fuel feeding.Specifically, A drive when, control valve group control fuel tank 230 to B turning machine 210b with
Latch bridge hydraulic cylinder 220b while fuel feeding, and the vehicle bridge 110b of B is made to lock just, control valve group controls fuel tank 230 to be converted to A heads again
Turning machine 210a fuel feeding.During B driving, control valve group controls turning machine 210a and latch bridge hydraulic cylinder of the fuel tank 230 to A
220a while fuel feeding, and the vehicle bridge 110a of A is made to lock just, control valve group controls fuel tank 230 to be converted to the turning machine to B again
210b fuel feeding.
As shown in Figure 1, in the present embodiment, control valve group mainly includes the first solenoid valve 251 and two second electricity
Magnet valve 2521,2522, the first solenoid valve 251 is preferably H function solenoid directional control valves, and second solenoid valve 2521,2522 is preferable
For O function solenoid directional control valves, but it is not limited thereto.Wherein, above-mentioned each solenoid valve is respectively provided with each electromagnet DTB of electromagnet DTA.
Specifically, one end of the first solenoid valve 251 is connected to steering pump 241 (i.e. fuel tank 230), the other end passes through its electromagnet DTA
Latch bridge the hydraulic cylinder 220a, 220b of A and B are connected to electromagnet DTB.The one of one of second solenoid valve 2521
End is connected to steering pump 241 (i.e. fuel tank 230), and the other end is connected to A by its electromagnet DTA and electromagnet DTB
The turning machine 210a and latch bridge hydraulic cylinder 220b of B.One end of other in which second solenoid valve 2522 is connected to steering pump 241
(i.e. fuel tank 230), the other end are connected to latch bridge the hydraulic cylinder 220a and B of A by its electromagnet DTA and electromagnet DTB
The turning machine 210b of head.By above-mentioned design, when needing to lock A positive, the electromagnet DTA of second solenoid valve 2522 obtain it is electric, i.e.,
Control valve group controls fuel tank 230 to the latch bridge hydraulic cylinder 220a fuel feeding of A, the latch bridge of realization A, when pressure controller 261 is defeated
Show that latch bridge is completed when going out to lock positive signal, then the electromagnet DTA of solenoid valve 2531 and solenoid valve 2532 is obtained electric, while solenoid valve
The electromagnet DTA of 254a obtains electric, and then the electromagnet DTB of solenoid valve 2522 is obtained electric, and steering pump 241 is converted to B steering
Fuel feeding is realized and turned to for B when steering wheel 120b is rotated.It is travelled when double end ferry bus commutates, is needing B vehicle bridge locks just, A turn
To.The electromagnet DTB of second solenoid valve 2521 is obtained electric at this time, i.e., control valve group controls fuel tank 230 to be supplied to the latch bridge oil cylinder of B
Oil is realizing B vehicle bridge locks just.Accordingly, when pressure controller 262 sends out lock positive signal, B latch bridges are completed, at this time electromagnetism
The electromagnet DTA of the electromagnet DTA of valve 254b, solenoid valve 2533 and solenoid valve 2534 obtain electric, and then the DTA of electromagnet 2521 is obtained
Electricity, steering pump 241 are turned to as A servo steering system fuel feeding, when steering wheel 120a is rotated, A steerings of realization.
In addition, as shown in Figure 1, in the present embodiment, control valve group further includes two groups of solenoid valve blocks, corresponds respectively to two
A turning machine 210a, 210b.One of which solenoid valve block is set between a second solenoid valve 2521 and a turning machine 210a, another
It is mounted between another second solenoid valve 2522 and another turning machine 210b.Wherein, every group of solenoid valve block includes two third electricity
Magnet valve, one of third solenoid valve 2532,2533 are connected between second solenoid valve and turning machine, other in which third electricity
Magnet valve 2531,2534 is connected between turning machine and the oil return line for turning to circuit.Based on above-mentioned design, when the vehicle bridge of A
After the completion of 110a latch bridges, the electromagnet DTA of third solenoid valve 2531 and third solenoid valve 2532 obtains electric, has cut off power-assisted steering machine
The oil inlet and oil return of 210a, the steering for being equivalent to A vehicle bridge 110a is in stays, also just indirectly plays latch bridge work
With.That is, turning machine 210a and two covering devices of latch bridge oil cylinder 220a while latch bridge, effectively increase the safety of latch bridge.
In addition, as shown in Figure 1, in the present embodiment, control valve group further includes two the 4th solenoid valve 254a, 254b,
Correspond respectively to two latch bridge hydraulic cylinders 220a, 220b.One of them the 4th solenoid valve 254b one end connects the first electromagnetism simultaneously
The electromagnet DTB of the electromagnet DTA of valve 251 and a second solenoid valve 2521, the other end connect a latch bridge hydraulic cylinder 220b.
The 4th solenoid valve 254a one end of other in which connects the electromagnet DTB and another second electromagnetism of the first solenoid valve 251 simultaneously
The electromagnet DTA of valve 2522, the other end connect another latch bridge hydraulic cylinder 220a.Based on above-mentioned design, the 4th solenoid valve 254a
As latch bridge solenoid valve, after pressure controller 261 sends out bridge lock positive signal, the electromagnet DTA of the 4th solenoid valve 254a obtain it is electric,
Latch bridge oil cylinder 220a is keeping lock just.Accordingly, the 4th solenoid valve 254b is also latch bridge solenoid valve, when pressure controller 262 is sent out
After bridge lock positive signal, the electromagnet DTA of the 4th solenoid valve 254b obtains electric, and latch bridge oil cylinder 220b is keeping lock just.
Preferably, in the present embodiment, above-mentioned third solenoid valve and the 4th solenoid valve can be preferably Solenoid ball valve,
It can effectively reduce latch bridge pressure reduction caused by the fluid leakage of latch bridge hydraulic cylinder 220a, 220b and hydraulic steering cylinder 211,
Further ensure the reliability of latch bridge.
It should be noted here that the steering lock bridge control system for showing in attached drawing and describing in the present specification, only can
Enough using an example in many kinds of steering lock bridge control systems of the principle of the invention.It should be clearly understood that the present invention
Principle be only limitted to show in attached drawing absolutely not or this specification described in steering lock bridge control system any details or steering lock
Any part of bridge control system.
For example, as shown in Figure 1, in the present embodiment, control valve group further includes two pressure controllers 261,
262, two latch bridges hydraulic cylinder 220a, 220b are corresponded respectively to, to detect the pipeline for being located at A and B in latch bridge circuit respectively
In oil liquid pressure.Preferably, one of pressure controller 262 is set on electromagnet DTA and one of the first solenoid valve 251 the
On pipeline between the electromagnet DTB of two solenoid valves 2521 and a latch bridge hydraulic cylinder 220b.Other in which pressure controller 261
Set on the electromagnet DTB of the first solenoid valve 251 and electromagnet DTA of another second solenoid valve 2522 and another latch bridge hydraulic pressure
On pipeline between cylinder 220a.Wherein, when the oil liquid pressure in the latch bridge circuit of A or B is more than or equal to a setting pressure upper limit
During value, such as 14Mpa, pressure controller 261,262 control the first solenoid valve 251 and two 2521,2522 turns of second solenoid valves
It is changed to middle position work and carries out off-load.
In addition, in the present embodiment, which may also include emergency pump 242, by turning to back
Road is connected between fuel tank 230 and two turning machines 210a, 210b, and is passed through latch bridge circuit and be connected to fuel tank 230 and two locks
Between bridge hydraulic cylinder 220a, 220b.Wherein, when the oil liquid pressure in the latch bridge circuit of A or B is less than or equal to the lower pressure limiting of a setting
During force value, such as 4Mpa, pressure controller 261,262 controls emergency pump 242 from fuel tank 230 to A or B latch bridge hydraulic cylinders
220a, 220b supplement pressure, until the oil liquid pressure for being connected to the latch bridge circuit at latch bridge hydraulic cylinder 220a, 220b returns back to just
Constant value, i.e. more than 14Mpa, and the pressure upper limit value (normal value) and threshold pression value can by pressure controller 261,
262 are adjusted setting.
Based on above description, the control principle of steering lock bridge control system proposed by the present invention is substantially：It needs to side
Vehicle bridge locks timing, and fuel tank 230 is controlled to the turning machine of the side and latch bridge hydraulic pressure oil supply cylinder using control valve group, using turning machine with
Latch bridge hydraulic cylinder acts on the both ends of the side vehicle bridge and realizes lock just simultaneously.After the side vehicle bridge is locked just, control valve group control is recycled
Liquefaction case 230 switchs to the turning machine fuel feeding to opposite side, and the vehicle of the opposite side is acted solely on using the turning machine of the opposite side
Bridge and realize steering.
Bi-directional vehicle embodiment
Refering to Fig. 2 and Fig. 3, the bi-directional vehicle that can embody the principle of the present invention is representatively illustrated in Fig. 2
Side view；The bottom view of bi-directional vehicle shown in Fig. 2 is shown in Fig. 3.In the illustrative embodiments, the present invention carries
The bi-directional vehicle gone out is illustrated by taking two way ferry bus as an example.It will be readily appreciated by those skilled in the art that
To apply the present invention to other kinds of bi-directional vehicle, and a variety of remodeling are made to following specific embodiments, are added
Add, substitute, deleting or other change, these variations are still in the range of the principle of bi-directional vehicle proposed by the present invention.
As shown in Figures 2 and 3, in the present embodiment, bi-directional vehicle proposed by the present invention has and is respectively arranged on it
A, two vehicle bridge 110a, the 110b at B both ends, and bi-directional vehicle is equipped with steering lock bridge control system proposed by the present invention.
Wherein, during A driving, control valve group controls turning machine 210b and latch bridge hydraulic cylinder 220b while fuel feeding of the fuel tank 230 to B,
And the vehicle bridge 110b of B is made to lock just, control valve group controls fuel tank 230 to be converted to the turning machine 210a fuel feeding to A again.B are driven
When sailing, control valve group controls turning machine 210a and latch bridge hydraulic cylinder 220a while fuel feeding of the fuel tank 230 to A, and makes the vehicle of A
Bridge 110a locks just, and control valve group controls fuel tank 230 to be converted to the turning machine 210b fuel feeding to B again.
In addition, the structure based on two way ferry bus, in the present embodiment, as shown in Figures 2 and 3, turns to transmission
Device 132 can mainly include pitman arm 1321 and steering drag link 1322, wherein pitman arm 1321 and turning machine 210a,
The hydraulic steering cylinder 211 of 210b connects, and steering drag link 1322 and one end of vehicle bridge 110a, 110b connect, turning machine 210a,
Hydraulic steering cylinder 211, the pitman arm 1321 of 210b forms a machine driven system with steering drag link 1322, thus turns to straight
Pull rod 1322 controls vehicle bridge 110a, 110b to be rotated relative to travel direction both sides under the action of turning machine 210a, 210b, so as to
Reach steering or cooperation latch bridge hydraulic cylinder 220a, 220b lock positive effect.
In conclusion the present invention is realized to the lock of vehicle bridge using latch bridge hydraulic cylinder and turning machine jointly just, with the prior art
It compares, reduces a latch bridge hydraulic cylinder per each driver side.Meanwhile the present invention is completed using steering pump to latch bridge hydraulic cylinder
With the fuel feeding of turning machine, compared with prior art, reduce individually to the gear pump of latch bridge mechanism fuel feeding.Therefore, the present invention has
Simplify to effect the latch bridge and servo steering system of existing bi-directional vehicle.
In addition, the simplification based on above-mentioned hydraulic test so that the present invention further simplifies fluid compared with traditional technology
The setting of pipeline.Since fluid pipeline complicated in the prior art causes its oil pipe that can only use hose mostly.It is however of the invention
In can be used steel pipe oil instead of pervious hose as the oil pipe in each pipeline, be further reduced making for for example explosion-proof pipe device
With.
Furthermore since the section solenoid valve of the present invention has selected Solenoid ball valve, the frequency of steering pump keying can be reduced, is had
Oil liquid temperature is excessively high caused by effect is solved when steering pump is frequently hydraulic system fuel feeding, so as to reduce accumulator, safety
The use of the Hydraulic Elements such as valve, pressure switch reduces the failure rate of steering lock bridge control system.
It is described in detail above and/or illustrate steering lock bridge control system proposed by the present invention and double with the system
To the illustrative embodiments of driving vehicle.But embodiments of the present invention are not limited to particular implementation as described herein,
On the contrary, the component part and/or step of each embodiment can be independent with other component parts as described herein and/or step
Be used separately.Each component part of one embodiment and/or each step also can be with other groups of other embodiment
It is used in combination into part and/or step.When introducing described here and/or diagram element/component part/wait, term " one
It is a ", " one " and " above-mentioned " etc. to represent there are one or more elements/component part/etc..Term "comprising", " comprising " and
" having " to represent it is open be included look like and refer to element/component part/in addition to listing other than waiting also
May be present other element/component part/etc..In addition, term " first " and " second " in claims and specification etc.
It is only used as label, is not the numerical limit to its object.
Although according to different specific embodiments to steering lock bridge control system proposed by the present invention and with the system
Bi-directional vehicle be described, but it will be recognized by those skilled in the art can be in the spirit and scope of the claims
The implementation of the present invention is modified.
Claims (10)
1. a kind of steering lock bridge control system, is installed on dual-way vehicle, the dual-way vehicle includes being respectively arranged on its A, B both ends
Two vehicle bridge, which is characterized in that the steering lock bridge control system includes：
Two turning machines are respectively arranged on A, B both ends, its steering is controlled to push one end of described two vehicle bridge respectively；
Two latch bridge hydraulic cylinders are respectively arranged on A, B both ends, to lock the other end of just described two vehicle bridge respectively；
Oil supply mechanism, including fuel tank and steering pump, the fuel tank is passed through by turning to circuit communication in described two turning machines
Latch bridge circuit communication is in described two latch bridge hydraulic cylinders；And
Control valve group, set on the steering circuit and the latch bridge circuit, to control the oil supply mechanism selectively to described
One of two latch bridge hydraulic cylinders fuel feeding, and selectively to one of described two turning machines fuel feeding；
Wherein, during A driving, the control valve group controls the turning machine and latch bridge hydraulic cylinder of the oil supply mechanism to B
Fuel feeding simultaneously, and vehicle bridge B described is made to lock just, the control valve group controls the oil supply mechanism to be converted to the institute to A again
State turning machine fuel feeding；During B driving, control planning when being driven with A is corresponding.
2. steering lock bridge control system according to claim 1, which is characterized in that the control valve group includes：
First solenoid valve, one end are connected to the steering pump, and the other end has electromagnet DTA and electromagnet DTB, and connects respectively
In described B and the latch bridge hydraulic cylinder of A；And
Two second solenoid valves, one end are all connected to the steering pump, and the other end is respectively provided with electromagnet DTA and electromagnet DTB, and
It is connected to latch bridge hydraulic cylinder B described and turning machine A described and latch bridge hydraulic cylinder A described and the B heads
Turning machine.
3. steering lock bridge control system according to claim 2, which is characterized in that when locking A positive, first solenoid valve
Electromagnet DTB and two second solenoid valves electromagnet DTA obtain it is electric；When locking B positive, the electromagnet of first solenoid valve
The electromagnet DTB of DTA and two second solenoid valve obtains electric；A or B are completed lock timings, and first solenoid valve and two the
The middle position work of two solenoid valves；A when turning to, the electromagnet DTA of a second solenoid valve obtains electric；During B steerings, Ling Yisuo
State second solenoid valve electromagnet DTB obtain it is electric.
4. steering lock bridge control system according to claim 3, which is characterized in that the control valve group further includes two pressures
Force controller corresponds respectively to described two latch bridge hydraulic cylinders, to detect A and B of being located in the latch bridge circuit respectively
Oil liquid pressure in pipeline；Wherein, when the oil liquid pressure in the latch bridge circuit of A or B is more than or equal to the upper pressure limiting of a setting
During force value, the pressure controller output bridge lock positive signal, and position in first solenoid valve is controlled to work, control described second
Electromagnetism Vavle switching electromagnet.
5. steering lock bridge control system according to claim 4, which is characterized in that it further includes emergency pump, passes through institute
Steering circuit is stated to be connected between the fuel tank and described two turning machines, and the fuel tank is connected to by the latch bridge circuit
Between described two latch bridge hydraulic cylinders；Wherein, when the oil liquid pressure in the latch bridge circuit of A or B is set less than or equal to one
When fixing pressure limiting force value, the pressure controller controls the emergency pump from the fuel tank to the A or B latch bridge hydraulic cylinders
Supplement pressure.
6. steering lock bridge control system according to claim 2, which is characterized in that the control valve group further includes two groups of electricity
Magnet valve group corresponds respectively to described two turning machines；Solenoid valve block described in one of which is set on a second solenoid valve and one
Between the turning machine；It is another to be mounted between another second solenoid valve and another turning machine；Electromagnetism described in every group
Valve group includes two third solenoid valves, one of them is connected between the second solenoid valve and the turning machine, another company
It is connected between the turning machine and the oil return line for turning to circuit.
7. steering lock bridge control system according to claim 2, which is characterized in that the control valve group further includes two
Four solenoid valves correspond respectively to described two latch bridge hydraulic cylinders；Described in one of them described 4th solenoid valve one end connects simultaneously
The electromagnet DTB of the electromagnet DTA of first solenoid valve and a second solenoid valve, the other end connect the latch bridge liquid
Cylinder pressure；Another described 4th solenoid valve one end connect simultaneously first solenoid valve electromagnet DTB and another described the
The electromagnet DTA of two solenoid valves, the other end connect another latch bridge hydraulic cylinder.
8. according to claim 1~7 any one of them steering lock bridge control system, which is characterized in that each turning machine
Including：
Hydraulic steering cylinder is connected with a steering transmission linkage, the steering transmission linkage to be controlled adjustably to push against A or B
The vehicle bridge of head；And
Motor valve is connected with a steering apparatus, the motor valve to be driven to control by manipulating the steering apparatus
The hydraulic steering cylinder action.
9. steering lock bridge control system according to claim 8, which is characterized in that each steering transmission linkage has
One bridge locks positive position sensor, set on one end of the pushing and pressing vehicle bridge of the steering transmission linkage, in the control valve group
Control the oil supply mechanism to the turning machine and latch bridge hydraulic cylinder simultaneously fuel feeding when and during latch bridge, detect whether the vehicle bridge locks
Just.
10. a kind of bi-directional vehicle has two vehicle bridge for being respectively arranged on its A, B both ends, which is characterized in that the two-way row
It sails vehicle and includes such as claim 1~9 any one of them steering lock bridge control system；Wherein, during A driving, the control
Valve group controls the turning machine and latch bridge hydraulic cylinder while fuel feeding of the oil supply mechanism to B, and locks vehicle bridge B described
Just, the control valve group controls the oil supply mechanism to be converted to the turning machine fuel feeding to A again；During B driving, with A heads
Control planning during driving is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169864.1A CN108202757B (en) | 2016-12-16 | 2016-12-16 | Steering lock bridge control system and bidirectional running vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169864.1A CN108202757B (en) | 2016-12-16 | 2016-12-16 | Steering lock bridge control system and bidirectional running vehicle with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108202757A true CN108202757A (en) | 2018-06-26 |
| CN108202757B CN108202757B (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611169864.1A Active CN108202757B (en) | 2016-12-16 | 2016-12-16 | Steering lock bridge control system and bidirectional running vehicle with same |
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| Country | Link |
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| CN (1) | CN108202757B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115384613A (en) * | 2022-09-13 | 2022-11-25 | 廊坊中集空港设备有限公司 | Steering system and steering control method |
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|---|---|---|---|---|
| DE2026577A1 (en) * | 1969-06-02 | 1970-12-10 | Clark Equipment Co., Buchanan, Mich. (V.St.A.) | Steering device |
| CN202574351U (en) * | 2012-03-14 | 2012-12-05 | 三江瓦力特特种车辆有限公司 | Bidirectional running steering interlocking structure |
| CN202657130U (en) * | 2012-06-07 | 2013-01-09 | 民航协发机场设备有限公司 | Double-head shuttle bus and head-changing driving switching device thereof |
| CN104058001A (en) * | 2013-12-13 | 2014-09-24 | 湖北三江航天万山特种车辆有限公司 | Bidirectional driving vehicle hydraulic system with multimode steering and automatic centering functions |
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2016
- 2016-12-16 CN CN201611169864.1A patent/CN108202757B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2026577A1 (en) * | 1969-06-02 | 1970-12-10 | Clark Equipment Co., Buchanan, Mich. (V.St.A.) | Steering device |
| CN202574351U (en) * | 2012-03-14 | 2012-12-05 | 三江瓦力特特种车辆有限公司 | Bidirectional running steering interlocking structure |
| CN202657130U (en) * | 2012-06-07 | 2013-01-09 | 民航协发机场设备有限公司 | Double-head shuttle bus and head-changing driving switching device thereof |
| CN104058001A (en) * | 2013-12-13 | 2014-09-24 | 湖北三江航天万山特种车辆有限公司 | Bidirectional driving vehicle hydraulic system with multimode steering and automatic centering functions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115384613A (en) * | 2022-09-13 | 2022-11-25 | 廊坊中集空港设备有限公司 | Steering system and steering control method |
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| Publication number | Publication date |
|---|---|
| CN108202757B (en) | 2021-01-26 |
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Effective date of registration: 20210622 Address after: 065300 Xingye 2nd Road, Chaobaihe Industrial Zone, Dachang County, Langfang City, Hebei Province Patentee after: LANGFANG CIMC AIRPORT EQUIPMENT Co.,Ltd. Patentee after: XINFA AIRPORT EQUIPMENT Ltd. Patentee after: XINFA AIRPORT EQUIPMENT Ltd. LANGFANG BRANCH Patentee after: SHENZHEN CIMC-TIANDA AIRPORT SUPPORT Co.,Ltd. Address before: CIMC R & D center, 2 Gangwan Avenue, Shekou Industrial Zone, Shenzhen, Guangdong, China 518067 Patentee before: China International Marine Containers (Group) Co.,Ltd. Patentee before: XINFA AIRPORT EQUIPMENT Ltd. Patentee before: XINFA AIRPORT EQUIPMENT Ltd. LANGFANG BRANCH Patentee before: LANGFANG CIMC AIRPORT EQUIPMENT Co.,Ltd. Patentee before: SHENZHEN CIMC-TIANDA AIRPORT SUPPORT Co.,Ltd. |
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