CN106005000B - A kind of fluid-link steering control system - Google Patents
A kind of fluid-link steering control system Download PDFInfo
- Publication number
- CN106005000B CN106005000B CN201610399598.5A CN201610399598A CN106005000B CN 106005000 B CN106005000 B CN 106005000B CN 201610399598 A CN201610399598 A CN 201610399598A CN 106005000 B CN106005000 B CN 106005000B
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- Prior art keywords
- valve
- solenoid directional
- oil
- directional control
- steering
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Classifications
-
- 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
-
- 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
- B62D5/08—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 type of steering valve used
-
- 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
- B62D5/09—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 means for actuating valves
- B62D5/091—Hydraulic steer-by-wire systems, e.g. the valve being actuated by an electric motor
Abstract
The present invention discloses a kind of fluid-link steering control system, it includes steering cylinder group, course changing control valve group, proportional multi-way valve, pump group, fuel tank and control mechanism, pump group and is connected with fuel tank.The control system of the present invention can realize that running on wheels equipment wheel spacing is adjustable, ensure that different wheel directions is consistent；With independent control turning function, suitable for the occasion of no bridge type connection, steering does not have steering gear and mechanical linkage, simple in structure.
Description
Technical field
The present invention relates to steering control system, more particularly to a kind of fluid-link steering control system.
Background technology
The fluid-link steering function of the running on wheels equipment used at present in engineering machinery, agricultural machinery and mining machinery,
All it is to drive switching valve with steering gear, switching valve gives steering cylinder fuel feeding, and bridge or rear axle realize wheel before steering cylinder driving
Turn to.Because wheel is connect by bridging, to mechanically connect, two wheels synchronously turn to.Some occasions, in order to adapt to different roads
Face operating mode, it is necessary to each wheel land with independent steering and wheel can not be in the walking arrangement of same level height, such as walking
Excavator.Walking type excavator has four supporting legs, can adjust supporting leg posture according to complicated mountainous region operating mode, river operating mode etc.,
The wheel spacing of its two wheel or four wheel steering oil cylinders is adjustable.The running on wheels of bridge-type connect band steering gear control as is set
Standby, wheel spacing is uncomfortable.Walking type excavator supporting leg wheel spacing is adjustable, but existing most of walking excavating machine adjusts
After taking turns spacing, four wheel directions cannot be guaranteed what is be just as, can cause wheel Fast Wearing, and be not suitable for quick row
Walk.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide one kind control the independent steering of each wheel and more
The fluid-link steering control system that wheel synchronously turns to.
To achieve the above object, the present invention uses following technical scheme：
A kind of fluid-link steering control system, it includes steering cylinder group, course changing control valve group, proportional multi-way valve, pump group, oil
Case and control mechanism, pump group are connected with fuel tank；
The steering cylinder group includes the first steering cylinder and the second steering cylinder, the first steering cylinder and the second steering oil
Cylinder independently drives a wheel steering；
The course changing control valve group include be three-position four-way electromagnetic directional valve the first solenoid directional control valve and the second electromagnetism
Reversal valve, the oil inlet P 1 of first solenoid directional control valve are connected with pump group, the oil return inlet T 1 and fuel tank of the first solenoid directional control valve
Connection, an oil outlet A1 of the first solenoid directional control valve are connected with the rod chamber of the first steering cylinder, the first solenoid directional control valve
Another oil outlet B1 is connected with the rodless cavity of the first steering cylinder；The oil inlet P 2 of second solenoid directional control valve connects with pump group
Connect, the oil return inlet T 2 of the second solenoid directional control valve is connected with fuel tank, and an oil outlet A2 of the second solenoid directional control valve and second is turned to
The rodless cavity connection of oil cylinder, another oil outlet B2 of the second solenoid directional control valve are connected with the rod chamber of the second steering cylinder；The
The oil outlet A1 of one solenoid directional control valve is communicated with the oil outlet B2 of the second solenoid directional control valve；
The oil inlet P 3 of the proportional multi-way valve is connected with pump group, and the oil return inlet T 3 of proportional multi-way valve is connected with fuel tank, than
One oil outlet A3 of example multi-way valve is connected with the rodless cavity of the first steering cylinder, another oil outlet B3 and second of proportional multi-way valve
The rodless cavity connection of steering cylinder；
The control mechanism is connected with the first solenoid directional control valve, the second solenoid directional control valve and proportional multi-way valve respectively, control
The electromagnetic coil break-make of the first solenoid directional control valve of mechanism controls and the second solenoid directional control valve with control respectively the first steering cylinder and
The action of second steering cylinder；The spool movement of control mechanism control proportional multi-way valve is to control the first steering cylinder and the
The wheel that two steering cylinders are driven synchronously turns to.
The control mechanism is the pilot handle of hydraulically-controlled type, is integrated with the pilot handle for controlling the first electromagnetism respectively
The control button of the electromagnetic coil break-make of reversal valve and the second solenoid directional control valve；One oil outlet L of the pilot handle with than
One pilot control opening a connection of example multi-way valve, another oil outlet R of pilot handle and another guide of proportional multi-way valve
Control mouth b connections；The pump group includes the first pump and second and pumps, and the oil inlet of the first pump and the second pump is connected with fuel tank, institute
State the oil outlet of the first pump oil inlet P 1 with the first solenoid directional control valve, the oil inlet P 2 of the second solenoid directional control valve and ratio respectively
The oil inlet P 3 of multi-way valve connects, and the oil inlet P 4 of the pilot handle is connected with the oil outlet of the second pump, and pilot handle returns
Hydraulic fluid port T4 is connected with fuel tank.
The oil outlet of first pump is connected with the first overflow valve, and the oil outlet of second pump is connected with the second overflow
Valve.
The control mechanism includes electric control handle and electric controller, and electric control handle is connected with electric controller, is integrated on electric control handle
Be used for controlling the control button of the electromagnetic coil break-make of the first solenoid directional control valve and the second solenoid directional control valve respectively, electric controller with
Proportional multi-way valve connect and control proportional multi-way valve dead electricity with control its spool move；The pump group pumps for first, and first
The oil inlet of pump is connected with fuel tank, and the oil inlet P 1 with the first solenoid directional control valve, the second electromagnetism change the oil outlet of the first pump respectively
The oil inlet P 3 of oil inlet P 2 and proportional multi-way valve to valve connects.
The oil outlet of first pump is connected with the first overflow valve.
The proportional multi-way valve is load-sensitive proportional multi-path reversing valve.
First steering cylinder is equipped with the first hydraulic lock, and the first hydraulic lock combines for two the first check valves, wherein
One the first check valve connects the rodless cavity of the first steering cylinder, another first check valve the first steering cylinder of connection has bar
Chamber.
Second steering cylinder is equipped with the second hydraulic lock, and the second hydraulic lock combines for two the second check valves, wherein
One the second check valve connects the rodless cavity of the second steering cylinder, another second check valve the second steering cylinder of connection has bar
Chamber.
The present invention uses above technical scheme, has the following advantages：
1st, control system of the invention can realize that running on wheels equipment wheel spacing is adjustable, ensure different wheel directions one
Cause；With independent control turning function, suitable for the occasion of no bridge type connection, steering does not have steering gear and mechanical linkage machine
Structure, it is simple in structure.
2nd, a steering cylinder in the present invention connects a wheel, and wheel both can be turned to individually, can also link and turn
To.In the case that the appearance of different wheel steering direction is inconsistent, adjustment can individually be turned to by single wheel, be achieved in going
Walk the linked steering synchronously turned to.
3rd, the present invention is turned to by pilot handle or electric control handle control, and manipulation steering force is small, and comfort is high, handling
It is good.
4. the present invention is controlled using synchronous ratio of turning, turning velocity can be according to circumstances controlled, is had strong operability in fact.
Brief description of the drawings
The present invention is described in further details below in conjunction with the drawings and specific embodiments；
Fig. 1 is the schematic diagram of fluid-link steering control system embodiment 1 of the present invention；
Fig. 2 is the schematic diagram of fluid-link steering control system embodiment 2 of the present invention.
Embodiment
As shown in Figure 1 or 2, the present invention include steering cylinder group, course changing control valve group 3, proportional multi-way valve 4, pump group 7,
Fuel tank 9 and control mechanism, pump group 7 are connected with fuel tank 9；
Steering cylinder group includes the first steering cylinder 1 and the second steering cylinder 2, the first steering cylinder 1 and the second steering oil
Cylinder 2 independently drives a wheel steering；
Course changing control valve group 3 include be three-position four-way electromagnetic directional valve the first solenoid directional control valve 31 and the second electromagnetism change
To valve 32, the oil inlet P 1 of the first solenoid directional control valve 31 is connected with pump group 7, the oil return inlet T 1 and fuel tank of the first solenoid directional control valve 31
9 connections, an oil outlet A1 of the first solenoid directional control valve 31 are connected with the rod chamber of the first steering cylinder 1, the first electromagnetic switch
Another oil outlet B1 of valve 31 is connected with the rodless cavity of the first steering cylinder 1；The oil inlet P 2 of second solenoid directional control valve 32 with
Pump group 7 connects, and the oil return inlet T 2 of the second solenoid directional control valve 32 is connected with fuel tank 9, an oil outlet of the second solenoid directional control valve 32
A2 is connected with the rodless cavity of the second steering cylinder 2, another oil outlet B2 of the second solenoid directional control valve 32 and the second steering cylinder 2
Rod chamber connection；The oil outlet A1 of first solenoid directional control valve 31 is communicated with the oil outlet B2 of the second solenoid directional control valve 32；
Proportional multi-way valve 4 is load-sensitive proportional multi-path reversing valve, and the oil inlet P 3 of proportional multi-way valve 4 is connected with pump group 7,
The oil return inlet T 3 of proportional multi-way valve 4 is connected with fuel tank 9, an oil outlet A3 of proportional multi-way valve 4 and the first steering cylinder 1 without bar
Chamber connects, and another oil outlet B3 of proportional multi-way valve 4 is connected with the rodless cavity of the second steering cylinder 2；
Control mechanism is connected with the first solenoid directional control valve 31, the second solenoid directional control valve 32 and proportional multi-way valve 4 respectively, control
The electromagnetic coil break-make of mechanism controls the first solenoid directional control valve 31 and the second solenoid directional control valve 32 to control the first steering oil respectively
The action of 1 and second steering cylinder 2 of cylinder；The spool movement of control mechanism control proportional multi-way valve 4 is to control the first steering cylinder 1
The wheel driven with the second steering cylinder 2 synchronously turns to.
First steering cylinder 1 is equipped with the first hydraulic lock 11, and the first hydraulic lock 11 combines for two the first check valves, wherein
One the first check valve connects the rodless cavity of the first steering cylinder 1, another first check valve connects having for the first steering cylinder 1
Rod cavity.Second steering cylinder 2 is equipped with the second hydraulic lock 21, and the second hydraulic lock 21 combines for two the second check valves, wherein one
A second check valve connects the rodless cavity of the second steering cylinder 2, another second check valve the second steering cylinder 2 of connection has bar
Chamber.First check valve and the second check valve can be hydraulic control one-way valves.
Embodiment 1：As shown in Figure 1, control mechanism is the pilot handle 5 of hydraulically-controlled type, which depressurizes for direct proportion
Valve, its operation principle are that output pressure increases with the increase of 5 pivot angle of pilot handle, and output pressure is bigger, proportional multi-way valve 4
The pilot control opening pressure difference at both ends is bigger, and the valve core opening of proportional multi-way valve 4 is bigger, and the flow by proportional multi-way valve 4 is more,
Flow into two steering cylinders is more.The turning velocity of wheel is directly proportional to the pivot angle of pilot handle 5.In addition, pilot handle 5
On be integrated with for control respectively the control of the electromagnetic coil break-make of the first solenoid directional control valve 31 and the second solenoid directional control valve 32 by
Button；One oil outlet L of pilot handle 5 is connected with a pilot control opening a of proportional multi-way valve 4, pilot handle 5 another
Oil outlet R is connected with another pilot control opening b of proportional multi-way valve 4；Pump group 7 includes the first pump 71 and second and pumps 72, first
Pump 71 to course changing control valve group 3, proportional multi-way valve 4 provide power, first pump 71 can be load-reacting pump or
Constant displacement pump, first pump 71 and second pump 72 oil inlet be connected with fuel tank 9, first pump 71 oil outlet respectively with the first electromagnetism
The oil inlet P 3 of the oil inlet P 1 of reversal valve 31, the oil inlet P 2 of the second solenoid directional control valve 32 and proportional multi-way valve 4 connects.Second
Pump 72 provides power to pilot handle 5, and the second pump 72 is constant displacement pump, and the oil inlet P 4 of pilot handle 5 is fuel-displaced with the second pump 72
Mouthful connection, the oil return inlet T 4 of pilot handle 5 is connected with fuel tank 9, and the first oil outlet for pumping 71 is connected with the first overflow valve 8, and second
The oil outlet of pump 72 is connected with the second overflow valve 6.First overflow valve 8 and the second overflow valve 6 start the effect of overflow protection.
In this example 1, after pump group 7 starts, the button on operated pilot handle 5, makes 31 left side of the first solenoid directional control valve
Electromagnetic coil is powered, and the first solenoid directional control valve 31 is in left position work, and hydraulic oil enters the first electromagnetism from the first 71 oil outlets of pump
The oil inlet P 1 of reversal valve 31, enters the rodless cavity of the first steering cylinder 1, piston from the oil outlet B1 of the first solenoid directional control valve 31
Bar stretches out, and realizes that single wheel is turned left, hydraulic oil the returning through the first solenoid directional control valve 31 of the rod chamber of the first steering cylinder 1
Hydraulic fluid port T1 flows back to fuel tank 9.Button on operated pilot handle 5, makes 31 the right electromagnetic coil of the first solenoid directional control valve be powered, the
One solenoid directional control valve 31 is in the work of right position, and hydraulic oil enters the oil inlet of the first solenoid directional control valve 31 from 71 oil outlet of the first oil pump
Mouth P1, enters the rod chamber of the first steering cylinder 1 from the oil outlet A1 of the first solenoid directional control valve 31, and piston rod is retracted, and realizes single
A wheel is turned right, and oil return inlet T 1 of the hydraulic oil of the rodless cavity of the first steering cylinder 1 through the first solenoid directional control valve 31 flows back to oil
Case 9.Similarly, when 32 left side electromagnetic coil of the second solenoid directional control valve is powered, the second solenoid directional control valve 32 is in left position work, hydraulic pressure
The oil outlet of oil from the first pump 71 enters the oil inlet P 2 of the second solenoid directional control valve 32, from the oil outlet of the second solenoid directional control valve 32
B2 enter the second steering cylinder 2 rod chamber, piston rod retract, realize that single wheel is turned left, the second steering cylinder 2 without bar
Oil return inlet T 2 of the hydraulic oil of chamber through the second solenoid directional control valve 32 flows back to fuel tank 9.Button on operated pilot handle 5, makes
Two solenoid directional control valves, 32 the right electromagnetic coil is powered, and the second solenoid directional control valve 32 is in the work of right position, and hydraulic oil pumps 71 from first
Oil outlet enters the oil inlet P 2 of the second solenoid directional control valve 32, is turned to from the oil outlet A2 of the second solenoid directional control valve 32 into second
The rodless cavity of oil cylinder 2, piston rod stretch out, and realize that single wheel is turned right, and the hydraulic oil of the rod chamber of the second steering cylinder 2 is through the
The oil return inlet T 2 of two solenoid directional control valves 32 flows back to fuel tank 9.When the not button of operated pilot handle 5, the first solenoid directional control valve 31
Power-off transition is in the second solenoid directional control valve 32, and the first steering cylinder 1 and the second steering cylinder 2 are in the first hydraulic lock 11 and the
Under the action of two hydraulic locks 21 transition is not turned in stopping pressurize.
After pump group 7 starts, when no left and right directions pulls pilot handle 5, the pilot control opening a of proportional multi-path valve group 4,
B is connected by the oil return inlet T 4 of pilot handle 5 with fuel tank 9.Turn left and pull when operated pilot handle 5, an oil outlet of pilot handle 5
L is fuel-displaced, and into the pilot control opening a of proportional multi-way valve 4, the pressure difference at 4 spool both ends of proportion of utilization multi-way valve promotes spool movement,
Proportional multi-way valve 4 is set to be in left position work, hydraulic oil enters the oil inlet P 3 of proportional multi-way valve 4 from 71 oil outlet of the first oil pump,
Enter the rodless cavity of the first steering cylinder 1 from an oil outlet A3 of proportional multi-way valve 4, its piston rod stretches out, because the first electromagnetism changes
The oil outlet B2 of oil outlet A1 and the second solenoid directional control valve 32 to valve 31 are communicated, and hydraulic oil is from the first steering cylinder 1
Rod chamber is discharged, and into the rod chamber of the second steering cylinder 2, promotes its piston rod to retract, and hydraulic oil is from the second steering cylinder 2
Rodless cavity is discharged, and into the oil outlet B3 of proportional multi-way valve 4, fuel tank 9 is returned to from the oil return inlet T 4 of proportional multi-way valve 4.First turn
Being stretched out to 1 piston rod of oil cylinder, 2 piston rod of the second steering cylinder retracts at the same time, while promotes steered wheel toward left side deviation angle,
Realization turns to the left.Similarly, turn right and pull when operated pilot handle 5, an oil outlet R of pilot handle 5 is fuel-displaced, into proportional multi-path
The pilot control opening b of valve 4, the pressure difference at 4 spool both ends of proportion of utilization multi-way valve promote spool movement, are in proportional multi-way valve 4
Right position work, hydraulic oil enters the oil inlet P 3 of proportional multi-way valve 4 from the first 71 oil outlets of pump, from the fuel-displaced of proportional multi-way valve 4
Mouth B3 enters the rodless cavity of the second steering cylinder 2, its piston rod stretches out, and hydraulic oil is discharged from the rod chamber of the second steering cylinder 2,
Into the rod chamber of the first steering cylinder 1, its piston rod is promoted to retract, hydraulic oil is discharged from the rodless cavity of the first steering cylinder 1,
Into the oil outlet A3 of proportional multi-way valve 4, fuel tank 9 is returned to from the oil return inlet T 4 of proportional multi-way valve 4.First steering cylinder, 1 piston
Bar is retracted, and 2 piston rod of the second steering cylinder stretches out at the same time, while promotes steered wheel to turn right toward the right deviation angle, realization
To.
Embodiment 2：As shown in Fig. 2, on the basis of embodiment 1, proportional multi-way valve 4 uses automatically controlled replacement hydraulic control, guide
Handle 5 replaces hydraulic control using electric control handle, since embodiment 2 does not use the pilot handle of hydraulic control, no longer needs the second pump
And second overflow valve participate in work；Required function can be achieved only with the first pump 71 in embodiment 1 in power source, specifically
As follows, control mechanism includes electric control handle 5 ' and electric controller 10, and electric control handle 5 ' is connected with electric controller 10, collects on electric control handle 5 '
Into the control button for being used for controlling the electromagnetic coil break-make of the first solenoid directional control valve 31 and the second solenoid directional control valve 32 respectively, electricity
Control device 10 be connected with proportional multi-way valve 4 and control proportional multi-way valve 4 dead electricity with control its spool movement；Pump group 7 is first
Pump 71, the oil inlet of the first pump 71 are connected with fuel tank 9, the oil outlet oil inlet with the first solenoid directional control valve 31 respectively of the first pump 71
Mouth P1, the oil inlet P 2 of the second solenoid directional control valve 32 and the oil inlet P 3 of proportional multi-way valve 4 connect, and the oil outlet of the first pump 71 connects
It is connected to the first overflow valve 8.When electric control handle 5 ', which is turned left, to be pulled, realize the first steering cylinder 1 and the second steering cylinder 2 driving
Wheel synchronously turns to the left, when electric control handle 5 ', which is turned right, to be pulled, realizes that the first steering cylinder 1 and the second steering cylinder 2 drive
Wheel synchronously turn to the right.Electric control handle 5 ' is analog output, and turning velocity is directly proportional to the pivot angle of electric control handle 5 ', its
Its corresponding technique effect, its specific implementation process is similar with above-described embodiment 1, does not repeat hereby.
Claims (8)
- A kind of 1. fluid-link steering control system, it is characterised in that：It includes steering cylinder group, course changing control valve group, proportional multi-path Valve, pump group, fuel tank and control mechanism, pump group are connected with fuel tank；The steering cylinder group includes the first steering cylinder and the second steering cylinder, the first steering cylinder and the second steering cylinder point It is not independent to drive a wheel steering；The course changing control valve group include be three-position four-way electromagnetic directional valve the first solenoid directional control valve and the second electromagnetic switch Valve, the oil inlet P 1 of first solenoid directional control valve are connected with pump group, and the oil return inlet T 1 of the first solenoid directional control valve is connected with fuel tank, One oil outlet A1 of the first solenoid directional control valve is connected with the rod chamber of the first steering cylinder, the first solenoid directional control valve another Oil outlet B1 is connected with the rodless cavity of the first steering cylinder；The oil inlet P 2 of second solenoid directional control valve is connected with pump group, the The oil return inlet T 2 of two solenoid directional control valves is connected with fuel tank, an oil outlet A2 of the second solenoid directional control valve and the second steering cylinder Rodless cavity connects, another oil outlet B2 of the second solenoid directional control valve is connected with the rod chamber of the second steering cylinder；First electromagnetism The oil outlet A1 of reversal valve is communicated with the oil outlet B2 of the second solenoid directional control valve；The oil inlet P 3 of the proportional multi-way valve is connected with pump group, and the oil return inlet T 3 of proportional multi-way valve is connected with fuel tank, and ratio is more One oil outlet A3 of road valve is connected with the rodless cavity of the first steering cylinder, and another oil outlet B3 of proportional multi-way valve and second is turned to The rodless cavity connection of oil cylinder；The control mechanism is connected with the first solenoid directional control valve, the second solenoid directional control valve and proportional multi-way valve respectively, control mechanism The electromagnetic coil break-make of the first solenoid directional control valve and the second solenoid directional control valve is controlled to control the first steering cylinder and second respectively The action of steering cylinder；The spool movement of control mechanism control proportional multi-way valve is to control the first steering cylinder and second turn The wheel driven to oil cylinder synchronously turns to.
- A kind of 2. fluid-link steering control system according to claim 1, it is characterised in that：The control mechanism is hydraulically-controlled type Pilot handle, the electromagnetism for controlling the first solenoid directional control valve and the second solenoid directional control valve respectively is integrated with the pilot handle The control button of coil break-make；One oil outlet L of the pilot handle and a pilot control opening a of proportional multi-way valve connect Connect, another pilot control opening b connections of another oil outlet R and proportional multi-way valve of pilot handle；The pump group includes the The oil inlet of one pump and the second pump, the first pump and the second pump is connected with fuel tank, and the described first oil outlet pumped is respectively with first The oil inlet P 3 of the oil inlet P 1 of solenoid directional control valve, the oil inlet P 2 of the second solenoid directional control valve and proportional multi-way valve connects, described The oil inlet P 4 of pilot handle is connected with the oil outlet of the second pump, and the oil return inlet T 4 of pilot handle is connected with fuel tank.
- A kind of 3. fluid-link steering control system according to claim 2, it is characterised in that：The oil outlet of first pump connects The first overflow valve is connected to, the oil outlet of second pump is connected with the second overflow valve.
- A kind of 4. fluid-link steering control system according to claim 1, it is characterised in that：The control mechanism includes automatically controlled Handle and electric controller, electric control handle are connected with electric controller, are integrated with electric control handle for controlling the first solenoid directional control valve respectively With the control button of the electromagnetic coil break-make of the second solenoid directional control valve, electric controller is connected with proportional multi-way valve and controls proportional multi-path Valve obtains dead electricity to control its spool to move；The pump group is the first pump, and the oil inlet of the first pump is connected with fuel tank, the first pump Oil outlet respectively the oil inlet P 1 with the first solenoid directional control valve, the oil inlet P 2 of the second solenoid directional control valve and proportional multi-way valve into Hydraulic fluid port P3 connections.
- A kind of 5. fluid-link steering control system according to claim 4, it is characterised in that：The oil outlet of first pump connects It is connected to the first overflow valve.
- A kind of 6. fluid-link steering control system according to claim 1 or 2 or 4, it is characterised in that：The proportional multi-way valve For load-sensitive proportional multi-path reversing valve.
- A kind of 7. fluid-link steering control system according to claim 1, it is characterised in that：Set on first steering cylinder There is the first hydraulic lock, the first hydraulic lock combines for two the first check valves, one of them first check valve connects the first steering oil The rodless cavity of cylinder, another first check valve connect the rod chamber of the first steering cylinder.
- A kind of 8. fluid-link steering control system according to claim 1, it is characterised in that：Set on second steering cylinder There is the second hydraulic lock, the second hydraulic lock combines for two the second check valves, one of them second check valve connects the second steering oil The rodless cavity of cylinder, another second check valve connect the rod chamber of the second steering cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399598.5A CN106005000B (en) | 2016-06-07 | 2016-06-07 | A kind of fluid-link steering control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399598.5A CN106005000B (en) | 2016-06-07 | 2016-06-07 | A kind of fluid-link steering control system |
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| CN106005000A CN106005000A (en) | 2016-10-12 |
| CN106005000B true CN106005000B (en) | 2018-04-20 |
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| CN201610399598.5A Active CN106005000B (en) | 2016-06-07 | 2016-06-07 | A kind of fluid-link steering control system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106828596B (en) * | 2017-03-03 | 2019-03-29 | 河南科技大学 | A kind of hydraulic steering system and the flexible wheel base vehicle using the system |
| CN108488121B (en) * | 2018-02-12 | 2020-11-10 | 宝鸡石油机械有限责任公司 | Hydraulic self-walking control method and control system for moving device |
| CN108791481B (en) * | 2018-05-29 | 2023-11-28 | 浙江万达汽车方向机有限公司 | Hydraulic steering road feel simulator assembly, simulation device and method |
| CN110094378B (en) * | 2019-06-12 | 2024-01-30 | 湖南科技大学 | Multi-foot walking device function interlocking type electrohydraulic control equipment and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020070071A1 (en) * | 2000-12-08 | 2002-06-13 | Schuh Scott N. | Electro-hydraulic load sense on a power machine |
| FR2836671B1 (en) * | 2002-03-04 | 2004-12-03 | Messier Bugatti | ARCHITECTURE OF ORIENTATION CONTROL HYDRAULIC SYSTEM |
| CN201169293Y (en) * | 2008-01-31 | 2008-12-24 | 中国重汽集团济南技术中心有限公司 | Hydraulic steering lifting system |
| CN102897211B (en) * | 2012-10-11 | 2015-04-15 | 中联重科股份有限公司 | Hydraulic power-assisted steering system and chassis of engineering vehicle |
| CN104443025B (en) * | 2014-11-08 | 2017-04-12 | 福州大学 | Electro-hydraulic servo pure rolling steering system for multi-axis vehicle and control method |
| CN205661521U (en) * | 2016-06-07 | 2016-10-26 | 福建海山机械股份有限公司 | Hydraulic steering control system |
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Denomination of invention: A hydraulic steering control system Effective date of registration: 20210923 Granted publication date: 20180420 Pledgee: Putian Huangshi sub branch of Industrial Bank Co.,Ltd. Pledgor: FUJIAN HAISHAN MACHINERY Co.,Ltd. Registration number: Y2021980009722 |