CN108556910A - A kind of all-wheel control system - Google Patents
A kind of all-wheel control system Download PDFInfo
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- CN108556910A CN108556910A CN201810275983.8A CN201810275983A CN108556910A CN 108556910 A CN108556910 A CN 108556910A CN 201810275983 A CN201810275983 A CN 201810275983A CN 108556910 A CN108556910 A CN 108556910A
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- mouthfuls
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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
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
Abstract
The invention discloses a kind of all-wheel control systems, including front steering system and rear steering system, front steering system includes steering gear, steering pump I, front-axle steering power-assisted oil cylinder, active servo-cylinder, and rear steering system includes turning to valve group, reversal valve, rear axle steering power-assisted oil cylinder, steering pump II, servo-actuated servo-cylinder, lock valve.The configuration of the present invention is simple, it is with obvious effects, the angle relation between front steering system, rear steering system is transmitted by active servo-cylinder, servo-actuated servo-cylinder, angle precise control, arrangement is convenient, securely and reliably, a variety of steering patterns such as all-wheel steering, high speed rear axle locking and crab row are realized, the flexibility that multiple-axle vehicle is run at a low speed and the stability run at high speed are greatly improved.
Description
Technical field
The present invention relates to a kind of steering mechanism, belong to automotive fittings field, specifically a kind of all-wheel control system.
Background technology
It is full simultaneously to improve conevying efficiency with the development of automotive engineering and road traffic system, the continuous improvement of speed
Requirement of the sufficient relevant laws and regulations to vehicle axle load, Modern Traffic haulage vehicle, engineering truck, military vehicle are gradually to large size
Change, the direction of multiaxis is developed.Flexible portability, riding stability, the working strength of driver etc. of the people to vehicle simultaneously
The requirement of aspect is higher and higher, and traditional nose wheel steering cannot be satisfied demand.Improving having for driving performance as a kind of
Effect means, all-wheel steering technology are come into being.Currently, the all-wheel control system of vehicle mainly has steering linkage structure, electro-hydraulic ratio
Example turns to and the several ways such as rear axle mechanical locking.Various system features are as follows：Steering linkage structure：Occupied space is big, by sky
Between limit difficult arrangement；Steering pattern is single, can not take into account the requirement that low speed is flexible, and high speed is stablized；After long-time use, turn to
Pull rod, which is easily deformed and wears, generates gap, so that wheel steering angle error is increased, aggravates tire wear；Electric-hydraulic proportion turns to：Pass through
Electric-hydraulic proportion realizes the steering of various modes, but system complex, parts are of high cost, poor performance at low temperatures；Rear axle mechanical locking knot
Structure：The steering of rear axle wheel need to be manually operated；It is larger that mechanical mechanism carries out noise when locking and unlock；Since rear steering system is complete
Complete independent, driver can not control the corner of rear axle wheel by steering wheel under all-wheel steering pattern.
The front axle of all-wheel control system is turned to by pull rod at present, and rear axle is controlled by mechanical locking mechanism.
When needing rear axle steering, by pneumatically or hydraulically mechanical structure being pushed to be unlocked, the power-assisted oil cylinder for being then connected to rear axle pushes away
Dynamic rear axle wheel is turned to, and the corner of rear axle wheel is unable to control at this time, and maximum angular will be gone under the action of power-assisted oil cylinder
Degree.When needing rear axle locking, rear axle wheel is gone into centre position, locking is carried out using mechanical structure after allowing, makes rear axle vehicle
Wheel is maintained at centre position.The major defect of rear axle mechanical locking structure：Rear steering system is not controlled by steering wheel, all-wheel steering
Rear axle wheel will directly go to maximum angle under pattern, and front axle, rear axle wheel steering angle do not have proportionate relationship；Mechanical mechanism stress
Under the conditions of, unlock success rate is relatively low；The steering of rear axle and locking need to carry out manually, can not automatically switch.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of all-wheel control system, steering wheel can be controlled directly
The steering angle of rear axle processed, and High-Speed Automatic locking, it is easy to operate, it is highly practical.
To achieve the goals above, the technical solution adopted by the present invention is：A kind of all-wheel control system, including front steering system
System and rear steering system, front steering system includes steering gear, steering pump I, front-axle steering power-assisted oil cylinder, active servo-cylinder, institute
The oil inlet for stating steering gear is connected with hydraulic oil container by steering pump I, oil return opening is also connected to hydraulic pressure by oil return filter
Fuel tank；Steering cylinder, active servo-cylinder of A mouthfuls of the work of the steering gear by piping connection to front axle I and front axle II
L1 mouths, B mouthful of the work of steering gear passes through the steering cylinder of piping connection to front axle I and front axle II, active servo-cylinder
L4 mouthfuls；Rear steering system includes turning to valve group, reversal valve, rear axle steering power-assisted oil cylinder, steering pump II, servo-actuated servo-cylinder, lock
Only valve, a mouths of the reversal valve and b mouthfuls pass through the A mouths of piping connection to the steering gear of front steering system and B mouthfuls, commutation respectively
The A mouths of valve and B mouthfuls pass through piping connection to the steering cylinder of rear axle I respectively；It is described turn to valve group A mouths and B mouthfuls be separately connected
To the L2 mouths of front steering system active servo-cylinder and L3 mouthfuls, the oil inlet for turning to valve group is connected to hydraulic oil by steering pump II
Case, the oil outlet for turning to valve group are connected to oil return filter, a mouths and the b mouthfuls of A for being respectively connected to lock valve for turning to valve group
Mouthful and B mouthful, turn to c mouths and the d mouthfuls of L8 mouths for being respectively connected to be servo-actuated servo-cylinder and L7 mouthfuls of valve group, the L6 mouths of servo-actuated servo-cylinder and
The L5 mouthfuls of a mouths for being respectively connected to lock valve and b mouthfuls；The fixing end of the servo-actuated servo-cylinder is fixed on rear axle II, piston rod connects
It is connected to the knuckle arm II of rear axle II, to push the wheel steering of rear axle II；The rear steering joint arm II of the rear axle II passes through
Steering linkage is connected to the rear steering joint arm I of rear axle I, and the angle relation between rear axle and rear axle is transmitted by pull rod.
Further, the steering gear includes overflow valve, check valve and the three-position four-way valve for being connected to steering wheel, described to overflow
The oil inlet of stream valve and check valve is all connected to the oil inlet of steering gear, and the oil outlet of overflow valve and check valve, which is all connected to, to be turned
To the oil outlet of device；The A mouths of the three-position four-way valve be connected to the oil return opening of steering gear, B mouthful be connected to steering gear oil inlet,
The P mouthfuls of A mouths for being connected to steering gear, the T mouthfuls of B mouths for being connected to steering gear.
The beneficial effects of the invention are as follows：Front steering system, rear steering system are transmitted by active servo-cylinder, servo-actuated servo-cylinder
Between angle relation, angle precise control, arrangement is convenient, securely and reliably；By arranging reversal valve and lock valve, full wheel is realized
A variety of steering patterns such as steering, high speed rear axle locking and crab row, greatly improve the flexibility that multiple-axle vehicle is run at a low speed, and
High stability has been taken into account, while having also added crab row mode, has been improved laterally across ability；Low speed and pattern when running at high speed
Automatically switch, is not necessarily to manual intervention, reduces the manipulation strength of driver；System pressure is automatically kept, angular errors are mended automatically
It repays, debugs, is easy to maintenance quick.
Description of the drawings
Fig. 1 is hydraulic diagram of the present invention；
Fig. 2 is front axle enlarged diagram of the present invention；
Fig. 3 is rear axle enlarged diagram of the present invention；
Fig. 4 is lock valve structure chart of the present invention；
Fig. 5 is that the present invention turns to valve group structure chart；
Fig. 6 is active servo-cylinder structure chart of the present invention；
Fig. 7 is the servo-actuated servo-cylinder structure chart of the present invention.
In figure：1, steering gear, 101, overflow valve, 102, check valve, 103, three-position four-way valve, 104, steering wheel, 2, turn to
Oil pump I, 3, hydraulic cylinder, 4, oil return filter, 5, front axle I, 501, right-hand rotation oil cylinder I, 502, left-hand rotation oil cylinder I, 503, front steering
Joint arm I, 6, front axle II, 601, steering cylinder II, 602, front steering joint arm II, 7, active servo-cylinder, 8, reversal valve, 9, rear axle I,
901, left-hand rotation oil cylinder III, 902, right-hand rotation oil cylinder III, 903, rear steering joint arm I, 10, rear axle II, 11, servo-actuated servo-cylinder, 12, turn to
Pull rod, 13, lock valve, 1301,2/2-way solenoid directional control valve I, 1302, hand-operated direction valve I, 1303, overflow valve I, 14, turn to
Valve group, 1401, overflow valve II, 1402, overflow valve III, 1403, overflow valve V, 1404, hand-operated direction valve III, 1405, change manually
To valve IV, 1406, overflow valve IV, 1407,2/2-way solenoid directional control valve II, 1408, hand-operated direction valve II, 15, rear steering section
Arm II, 16, steering pump II.
Specific implementation mode
With four-axle vehicle, the invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of all-wheel control system, including front steering system and rear steering system, front steering system include
Steering gear 1, steering pump I 2, front-axle steering power-assisted oil cylinder, active servo-cylinder 4, the oil inlet of the steering gear 1 pass through steering oil
It pumps and I 2 is connected with hydraulic oil container 3, oil return opening is also connected to hydraulic oil container 3 by oil return filter 4；The work A of the steering gear 1
Mouth passes through the L1 mouths of the steering cylinder of piping connection to front axle I 5 and front axle II 6, active servo-cylinder 7, the work of steering gear 1
B mouthfuls pass through the steering cylinder of piping connection to front axle I 5 and front axle II 6, the L4 mouths of active servo-cylinder 7；Rear steering system packet
It includes and turns to valve group 14, reversal valve 8, rear axle steering power-assisted oil cylinder, steering pump II 16, servo-actuated servo-cylinder 11, lock valve 13, it is described
The a mouths of reversal valve 8 and b mouthfuls pass through the A mouths of the steering gear 1 of piping connection to front steering system and B mouthfuls, the A mouths of reversal valve 8 respectively
And B mouthfuls pass through piping connection to the steering cylinder of rear axle I 9 respectively；It is described turn to valve group 14 A mouths and B mouthfuls be respectively connected to before
The L2 mouths of steering active servo-cylinder 7 and L3 mouthfuls, the oil inlet for turning to valve group 14 are connected to hydraulic pressure by steering pump II 16
Fuel tank 3, the oil outlet for turning to valve group 14 are connected to oil return filter 4, and a mouths for turning to valve group 14 and b mouthfuls are respectively connected to
The A mouths of lock valve 13 and B mouthfuls turn to c mouths and the d mouthfuls of L8 mouths for being respectively connected to be servo-actuated servo-cylinder 11 and L7 mouthfuls of valve group 14, with
The L6 mouths and the L5 mouthfuls of a mouths for being respectively connected to lock valve 13 of dynamic servo-cylinder 11 and b mouthfuls；The fixing end of the servo-actuated servo-cylinder 11 is solid
It is fixed on rear axle II 10, piston rod be connected to the knuckle arm II 15 of rear axle II 10, to push the wheel steering of rear axle II 10；
The rear steering joint arm II 15 of the rear axle II 10 is connected to the rear steering joint arm I 903 of rear axle I 9 by steering linkage 12, passes through drawing
Bar 12 transmits the angle relation between rear axle 9 and rear axle 10.
Further, the steering gear 1 includes overflow valve 101, check valve 102 and is connected to three four of steering wheel 104
The oil inlet of port valve 103, the overflow valve 101 and check valve 102 is all connected to the oil inlet of steering gear 1, overflow valve 101 and
The oil outlet of check valve 102 is all connected to the oil outlet of steering gear 1；The A mouths of the three-position four-way valve 103 are connected to steering gear 1
Oil return opening, B mouthfuls be connected to the oil inlet of steering gear 1, P mouthful and be connected to the A mouths of steering gear 1, the T mouthfuls of B for being connected to steering gear 1
Mouthful.
Further, as shown in Fig. 2, the front axle I 5 is hinged to front axle I 5 including bottom, piston rod is respectively articulated with to forward
To the left-hand rotation oil cylinder I 502 and right-hand rotation oil cylinder I 501 at I 503 both ends of joint arm, the A mouths of the steering gear 1 pass through piping connection to left-hand rotation
The B mouths of the rodless cavity of oil cylinder I 502 and the rod chamber of right-hand rotation oil cylinder I 501, steering gear 1 pass through piping connection to left-hand rotation oil cylinder I 502
Rod chamber and right-hand rotation oil cylinder I 501 rodless cavity；The front axle II 6 is hinged to front axle II 6 including bottom, piston rod is hinged to
The A mouths of the steering cylinder II 601 of II 602 one end of front steering joint arm, the steering gear 1 pass through piping connection to steering cylinder II
601 rodless cavity, B mouthfuls pass through piping connection to the rod chamber of steering cylinder II 601.
Further, as shown in figure 3, the rear axle I 9 is hinged to rear axle I 9 including bottom, piston rod is respectively articulated with to rear turn
To the left-hand rotation oil cylinder III 901 and right-hand rotation oil cylinder III 902 at I 903 both ends of joint arm, the A mouths of the reversal valve 8 pass through piping connection a to left side
Turn the rod chamber of oil cylinder III 901 and the rodless cavity of right-hand rotation oil cylinder III 902, the B mouths of steering gear 8 pass through piping connection to the oil cylinder that turns left
III 901 rodless cavity and the rod chamber of right-hand rotation oil cylinder III 902.
Further, the lock valve 13 includes, one end be connected to a mouthfuls, the other end be connected with hand-operated direction valve I 1302
The T mouths of A mouthfuls of 2/2-way solenoid directional control valve I 1301, the hand-operated direction valve I 1302 are connected to the A mouths of lock valve, the lock
Only the A mouths of valve are connected to the B mouths of lock valve by overflow valve I 1303, and the B mouths of the lock valve are additionally coupled to hand-operated direction valve I
1302 ends B and the ends P；The ends a of the lock valve are also connected with the ends b of lock valve.
Further, the steering valve group 14 includes the ends B for the hand-operated direction valve II 1408 for being connected to A mouthfuls, described to change manually
To the ends A, the ends P and the ends T of valve II 1408 be respectively connected to turn to valve group B mouths, c mouthful and d mouthfuls, it is described steering valve group A mouths lead to
The ends T that overflow valve II 1401 is connected to hand-operated direction valve III 1404 are crossed, the B mouths for turning to valve group are connected by overflow valve III 1402
The ends T of hand-operated direction valve III 1404 are connected to, the ends A of the hand-operated direction valve III 1404 are connected to the B of hand-operated direction valve IV 1405
End and a mouths for turning to valve group, the ends B of IV hand-operated direction valve III 1404 are connected to the b mouths for turning to valve group；It is described to change manually
To the ends A of valve IV 1405 are connected to the T mouths for turning to valve group, the ends P are connected to the T mouths for turning to valve group, the ends T by overflow valve IV 1406
It is connected to the d mouths for turning to valve group；The P mouths for turning to valve group are connected to the T mouths for turning to valve group by overflow valve V 1403, simultaneously
The P mouths for turning to valve group are connected to the ends P of hand-operated direction valve III 1404；The T mouths for turning to valve group are additionally coupled to hand-operated direction valve
III 1404 ends T；The c mouths for turning to valve group are also connected to the d mouths for turning to valve group by 2/2-way solenoid directional control valve 1407.
Preferably, the reversal valve 8 is 3 4-way valves, and the end A, B is not turned on when centre position, the conducting of the end C, D；Upper position
When, the conducting of the ends A-C, the conducting of the ends D-B；When upper position, the conducting of the ends B-C, the conducting of the ends D-A.
Further, as shown in Figure 6 and Figure 7, the active servo-cylinder 7, servo-actuated servo-cylinder 11, concrete structure concrete structure are detailed
See that the invention of Patent No. 201110457820.X, entitled eight-wheeler chassis and the autocrane with the chassis are special
Profit.
The operation principle of the present invention is that：Active servo-cylinder 7 is mounted in front steering system, stroke and steering wheel 104
Corner keeps proportionate relationship, is servo-actuated servo-cylinder 11 and is mounted in rear steering system, active servo-cylinder 7, the work for being servo-actuated servo-cylinder 11
Make chamber to be attached by pipeline；The piston rod of active servo-cylinder 7 generates a displacement with the rotation of steering wheel, can not press
Under the hydraulic oil transmission effect of contracting, the piston rod of servo-actuated servo-cylinder 11 will generate corresponding displacement in proportion, to push rear axle
II 10 wheel generates corner；Pass through again between the rear steering joint arm I 903 of rear axle I 9, the rear steering joint arm II 15 of rear axle II 10
Steering linkage 12 connects, and the corner of II 10 wheel of rear axle is by relation transmission in proportion to the wheel of rear axle I 9.
When the engine starts, the lock valve 13 that servo-actuated servo-cylinder 11 connects, which must be electrolysed, removes rear axle locking.When steering wheel 104
When left-hand rotation, high pressure oil is entered by the B mouths of steering gear 1 in the L4 mouths of active servo-cylinder 7, pushes piston rod to diagram front axle I 5
Direction is mobile, the hydraulic oil in L3 mouthful is entered by turning to valve group 14 and is servo-actuated the L7 mouths of servo-cylinder 11, the work of servo-actuated servo-cylinder 11
Stopper rod pushes the rear steering joint arm II 15 of rear axle II 10 to diagram left side, makes the wheel of rear axle II 10 according to certain angular relationship
It rotates to the right；Similar, when steering wheel 104 is turned right, fluid enters the L8 for being servo-actuated servo-cylinder 11 in the L2 mouths of active servo-cylinder 7
Mouthful, push the wheel of rear axle II 10 to turn left；Rear axle II 10 turn to while by steering linkage 12 push rear axle I 9 wheel into
Row turns to.
When vehicle, which is travelled to speed, to be greater than the set value, the solenoid valve turned in valve group 14 obtains electric, makes active servo-cylinder 7
L2, L3 mouthfuls are interconnected, and disconnect the relation transmission between active servo-cylinder 7 and servo-actuated servo-cylinder 11, while lock valve 13 passes through
L5, L6 mouth of servo-actuated servo-cylinder 11 carry out locking to rear axle, and rear axle wheel is made to be maintained at intermediate in-line position, realize high speed rear axle
Latch functions.
When Vehicle Speed is decreased below setting value, active servo-cylinder 7 is set to be helped with servo-actuated by turning to valve group 14
Power cylinder 11 is connected to, while releasing the locking of rear axle, and vehicle is made to reenter low speed all-wheel steering pattern.
When pressing crab row switch, by turning to the company between the switching active of valve group 14 servo-cylinder 7 and servo-actuated servo-cylinder 11
Clearance system makes L2 mouthfuls to be connected to L7 mouthfuls, and L3 mouthfuls are connected to L8 mouthfuls；At this point, rear axle wheel will be kept rotating in same direction with front axle wheel,
To realize crab row mode.
In conclusion the configuration of the present invention is simple, with obvious effects, front steering is transmitted by active servo-cylinder, servo-actuated servo-cylinder
Angle relation between system, rear steering system, angle precise control, arrangement is convenient, securely and reliably；By arrange reversal valve and
Lock valve realizes a variety of steering patterns such as all-wheel steering, high speed rear axle locking and crab row, greatly improves multiple-axle vehicle low speed
Traveling by performance, and taken into account high stability, while also adding crab row mode, improved laterally across ability；It is low
Speed and pattern automatic switchover when running at high speed, are not necessarily to manual intervention, reduce the manipulation strength of driver；System pressure is protected automatically
It holds, angular errors compensate automatically, debugging, easy to maintenance quick.
Claims (6)
1. a kind of all-wheel control system, which is characterized in that including front steering system and rear steering system, front steering system includes turning
To device（1）, steering pump I（2）, front-axle steering power-assisted oil cylinder, active servo-cylinder（4）, the steering gear（1）Oil inlet pass through
Steering pump I（2）It is connected with hydraulic oil container（3）, oil return opening pass through oil return filter（4）It is also connected to hydraulic oil container（3）；It is described
Steering gear（1）A mouthfuls of work pass through piping connection to front axle I（5）With front axle II（6）Steering cylinder, active servo-cylinder
（7）L1 mouths, steering gear（1）B mouthfuls of work pass through piping connection to front axle I（5）With front axle II（6）Steering cylinder,
Active servo-cylinder（7）L4 mouths；Rear steering system includes turning to valve group（14）, reversal valve（8）, rear axle steering power-assisted oil cylinder, turn
To oil pump II（16）, servo-actuated servo-cylinder（11）, lock valve（13）, the reversal valve（8）A mouths and b mouthfuls connected respectively by pipeline
It is connected to the steering gear of front steering system（1）A mouths and B mouthfuls, reversal valve（8）A mouths and B mouthfuls pass through piping connection to rear axle respectively
Ⅰ（9）Steering cylinder；The steering valve group（14）A mouths and B mouthfuls be respectively connected to front steering system active servo-cylinder（7）'s
L2 mouthfuls and L3 mouthfuls, turn to valve group（14）Oil inlet pass through steering pump II（16）It is connected to hydraulic oil container（3）, turn to valve group
（14）Oil outlet be connected to oil return filter（4）, the steering valve group（14）A mouths and b mouthfuls be respectively connected to lock valve
（13）A mouths and B mouthfuls, turn to valve group（14）C mouths and d mouthfuls be respectively connected to servo-actuated servo-cylinder（11）L8 mouths and L7 mouthfuls, with
Dynamic servo-cylinder（11）L6 mouths and L5 mouthfuls be respectively connected to lock valve（13）A mouths and b mouthfuls；The servo-actuated servo-cylinder（11）Consolidate
Fixed end is fixed to rear axle II（10）Upper, piston rod is connected to rear axle II（10）Knuckle arm II（15）；The rear axle II（10）
Rear steering joint arm II（15）Pass through steering linkage（12）It is connected to rear axle I（9）Rear steering joint arm I（903）.
2. a kind of all-wheel control system according to claim 1, which is characterized in that the steering gear（1）Including overflow valve
（101）, check valve（102）And it is connected to steering wheel（104）Three-position four-way valve（103）, the overflow valve（101）And it is single
To valve（102）Oil inlet be all connected to steering gear（1）Oil inlet, overflow valve（101）And check valve（102）Oil outlet all
It is connected to steering gear（1）Oil outlet；The three-position four-way valve（103）A mouths be connected to steering gear（1）Oil return opening, B mouthfuls even
It is connected to steering gear（1）Oil inlet, P mouthfuls be connected to steering gear（1）A mouths, T mouthfuls be connected to steering gear（1）B mouths.
3. a kind of all-wheel control system according to claim 1, which is characterized in that the front axle I（5）It is hinged including bottom
To front axle I（5）, piston rod is respectively articulated with to front steering joint arm I（503）The left-hand rotation oil cylinder I at both ends（502）And right-hand rotation oil cylinder I
（501）, the steering gear（1）A mouths pass through piping connection to left-hand rotation oil cylinder I（502）Rodless cavity and right-hand rotation oil cylinder I（501）
Rod chamber, steering gear（1）B mouths pass through piping connection to left-hand rotation oil cylinder I（502）Rod chamber and right-hand rotation oil cylinder I（501）'s
Rodless cavity；The front axle II（6）It is hinged to front axle II including bottom（6）, piston rod be hinged to front steering joint arm II（602）One end
Steering cylinder II（601）, the steering gear（1）A mouths pass through piping connection to steering cylinder II（601）Rodless cavity, B mouthfuls
Pass through piping connection to steering cylinder II（601）Rod chamber.
4. a kind of all-wheel control system according to claim 1, which is characterized in that the rear axle I（9）It is hinged including bottom
To rear axle I（9）, piston rod is respectively articulated with to rear steering joint arm I（903）The left-hand rotation oil cylinder III at both ends（901）And right-hand rotation oil cylinder III
（902）, the reversal valve（8）A mouths pass through piping connection to left-hand rotation oil cylinder III（901）Rod chamber and right-hand rotation oil cylinder III
（902）Rodless cavity, steering gear（8）B mouths pass through piping connection to left-hand rotation oil cylinder III（901）Rodless cavity and right-hand rotation oil cylinder III
（902）Rod chamber.
5. a kind of all-wheel control system according to claim 1, which is characterized in that the lock valve (13) includes one
End be connected to a mouthfuls, the other end be connected with hand-operated direction valve I (1302) A mouths 2/2-way solenoid directional control valve I (1301), institute
The T mouths for stating hand-operated direction valve I (1302) are connected to the A mouths of lock valve, and the A mouths of the lock valve are connected by overflow valve I (1303)
The B mouths of lock valve are connected to, the B mouths of the lock valve are additionally coupled to the ends B and the ends P of hand-operated direction valve I (1302)；The lock valve
The ends a be also connected with the ends b of lock valve.
6. a kind of all-wheel control system according to claim 1, which is characterized in that the steering valve group（14）Including connection
To A mouthfuls of hand-operated direction valve II（1408）The ends B, the hand-operated direction valve II（1408）The ends A, the ends P and the ends T be respectively connected to
Turn to valve group B mouths, c mouthfuls and d mouthfuls, it is described steering valve group A mouths pass through overflow valve II（1401）It is connected to hand-operated direction valve III
（1404）The ends T, it is described turn to valve group B mouths pass through overflow valve III（1402）It is connected to hand-operated direction valve III（1404）The ends T,
The hand-operated direction valve III（1404）The ends A be connected to hand-operated direction valve IV（1405）The ends B and turn to valve group a mouths, institute
State IV hand-operated direction valve III（1404）The ends B be connected to turn to valve group b mouths；The hand-operated direction valve IV（1405）The ends A connect
It is connected to the T mouths for turning to valve group, the ends P pass through overflow valve IV（1406）It is connected to the T mouths for turning to valve group, the ends T are connected to steering valve group
D mouths；The P mouths for turning to valve group pass through overflow valve V（1403）The T mouths for turning to valve group are connected to, while turning to the P of valve group
Mouth is connected to hand-operated direction valve III（1404）The ends P；The T mouths for turning to valve group are additionally coupled to hand-operated direction valve III（1404）'s
The ends T；The c mouths for turning to valve group also pass through 2/2-way solenoid directional control valve II（1407）It is connected to the d mouths for turning to valve group.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275983.8A CN108556910B (en) | 2018-03-30 | 2018-03-30 | All-wheel steering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275983.8A CN108556910B (en) | 2018-03-30 | 2018-03-30 | All-wheel steering system |
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| Publication Number | Publication Date |
|---|---|
| CN108556910A true CN108556910A (en) | 2018-09-21 |
| CN108556910B CN108556910B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810275983.8A Active CN108556910B (en) | 2018-03-30 | 2018-03-30 | All-wheel steering system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466600A (en) * | 2019-08-22 | 2019-11-19 | 徐州重型机械有限公司 | A kind of control valve group, control valve, steering system and crane |
| CN111619660A (en) * | 2019-04-22 | 2020-09-04 | 中国北方车辆研究所 | Rear axle steering hydraulic cylinder assembly and steering system |
| CN111845928A (en) * | 2019-04-22 | 2020-10-30 | 中国北方车辆研究所 | Front axle steering oil tank assembly and steering system |
| CN112977600A (en) * | 2019-12-18 | 2021-06-18 | 北汽福田汽车股份有限公司 | Steering system and vehicle |
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| DE102004005823A1 (en) * | 2003-02-17 | 2004-09-02 | Man Sonderfahrzeuge Ag | Multi-axle heavy goods vehicle has sender cylinder piston rod with larger diameter/cross-section between 2 pistons, smaller piston surfaces in sender pressure chambers than control pressure chambers |
| CN201907559U (en) * | 2010-12-06 | 2011-07-27 | 徐州重型机械有限公司 | Six-axle automobile chassis hoisting machine and steering control system thereof |
| CN102424001A (en) * | 2011-12-30 | 2012-04-25 | 徐州重型机械有限公司 | Four-axle automobile chassis and automobile crane with same |
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2018
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| JPH03292260A (en) * | 1990-04-10 | 1991-12-24 | Mitsubishi Automob Eng Co Ltd | Four-wheel steering device for automobile |
| DE102004005823A1 (en) * | 2003-02-17 | 2004-09-02 | Man Sonderfahrzeuge Ag | Multi-axle heavy goods vehicle has sender cylinder piston rod with larger diameter/cross-section between 2 pistons, smaller piston surfaces in sender pressure chambers than control pressure chambers |
| CN201907559U (en) * | 2010-12-06 | 2011-07-27 | 徐州重型机械有限公司 | Six-axle automobile chassis hoisting machine and steering control system thereof |
| CN102424001A (en) * | 2011-12-30 | 2012-04-25 | 徐州重型机械有限公司 | Four-axle automobile chassis and automobile crane with same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619660A (en) * | 2019-04-22 | 2020-09-04 | 中国北方车辆研究所 | Rear axle steering hydraulic cylinder assembly and steering system |
| CN111845928A (en) * | 2019-04-22 | 2020-10-30 | 中国北方车辆研究所 | Front axle steering oil tank assembly and steering system |
| CN111619660B (en) * | 2019-04-22 | 2021-08-06 | 中国北方车辆研究所 | Rear axle steering hydraulic cylinder assembly and steering system |
| CN111845928B (en) * | 2019-04-22 | 2022-03-15 | 中国北方车辆研究所 | Front axle steering oil tank assembly and steering system |
| CN110466600A (en) * | 2019-08-22 | 2019-11-19 | 徐州重型机械有限公司 | A kind of control valve group, control valve, steering system and crane |
| CN112977600A (en) * | 2019-12-18 | 2021-06-18 | 北汽福田汽车股份有限公司 | Steering system and vehicle |
| CN112977600B (en) * | 2019-12-18 | 2022-05-24 | 北汽福田汽车股份有限公司 | Steering system and vehicle |
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|---|---|
| CN108556910B (en) | 2020-12-08 |
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