CN108412827A - A kind of hydraulic moving control system - Google Patents
A kind of hydraulic moving control system Download PDFInfo
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- CN108412827A CN108412827A CN201810469470.0A CN201810469470A CN108412827A CN 108412827 A CN108412827 A CN 108412827A CN 201810469470 A CN201810469470 A CN 201810469470A CN 108412827 A CN108412827 A CN 108412827A
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- damping
- running motor
- combiner
- flow divider
- control system
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- 238000013016 damping Methods 0.000 claims abstract description 199
- 230000009194 climbing Effects 0.000 abstract description 14
- 230000009699 differential effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000306 component Substances 0.000 description 24
- 239000003921 oil Substances 0.000 description 16
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000011148 porous material Substances 0.000 description 6
- 241000736199 Paeonia Species 0.000 description 5
- 235000006484 Paeonia officinalis Nutrition 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000002493 climbing effect Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of hydraulic moving control system, including traveling pump, hoofing part motor sub-assembly, flow-dividing control unit and damping unit, the traveling pump, flow-dividing control unit and hoofing part motor sub-assembly are sequentially connected；The damping unit is in parallel with the flow-dividing control unit, and the damping unit has changeable small damping output mode and big damping output mode.Compared with prior art, the hydraulic moving control system of the present invention program can take into account skidding that big ramp angle brings simultaneously and what high turning speed was brought speed, both improved differential effect when high speed walking turns to, also improved cross-country effect when low speed climbing.
Description
Technical field
The present invention relates to the technical field of hydraulic of engineering machinery, and in particular to a kind of hydraulic moving control system.
Background technology
A kind of important equipment of the aerial work platform as engineering machinery is mainly used for transporting operating personnel, working equipment
Operation is carried out with material to specific position, therefore, the safety and stability performance of aerial work platform is its most important performance indicator
One of.Core component of the hydraulic control system as aerial work platform, performance are to determine aerial work platform safety and stability
The key element of performance.Hydraulic moving control is the common travelling control mode of aerial work platform, in aerial work platform row
When walking, hydraulic control running gear be by providing hydraulic energy by traveling pump for walking valve, hydraulic energy again by valve of walking inside
Structure is to running motor, and after running motor drives speed reducer, speed reducer drives tire rotation, to realize aerial work platform
It moves forward and backward.
As shown in Figure 1, hydraulic moving control system in the prior art, including traveling pump, hoofing part motor sub-assembly, point
Flow control unit and damping unit, the traveling pump are equipped with traveling pump actuator port A and traveling pump actuator port B, the row
Walk drive motor assembly include left front running motor 11, it is right before running motor 12, it is right after running motor 13 and left back running motor
14, the left front running motor 11, it is right before running motor 12, it is right after on running motor 13 and left back running motor 14 respectively extremely
It is equipped with A mouthfuls and B mouthfuls less；The flow-dividing control unit includes the first flow divider-combiner 21, the second flow divider-combiner 22 and third point
Flow combiner valve 23；The damping unit includes damper assembly, and the damper assembly includes the first damping unit 31, second damping dress
Set 32 and third damping unit 33；The traveling pump actuator port A is connected with the second flow divider-combiner 22, for realizing preceding bridge and
The shunting of rear axle；First flow divider-combiner 21 respectively with described left front running motor 11B mouthfuls and it is right before 12A mouthfuls of running motor
It is connected, is shunted for realizing the left and right wheels of preceding bridge；The third flow divider-combiner 23 respectively with described left back running motor 14B mouthfuls
It is connected with running motor 13A mouthfuls behind the right side, is shunted for realizing the left and right wheels of rear axle；The traveling pump actuator port B and described the
One flow divider-combiner 21 is connected with third flow divider-combiner 23；First damping unit 31 and first flow divider-combiner 21
Parallel connection, for realizing the differential control of preceding bridge left and right wheels；Second damping unit 32 and second flow divider-combiner 22 are simultaneously
Connection, for realizing the differential control of preceding bridge and rear axle, the third damping unit 33 is in parallel with the flow divider-combiner, for real
The differential control of existing rear axle left and right wheels.
From figure 1 it appears that when Chinese herbaceous peony into when, the pressure oil of the traveling pump actuator port B flows through the first shunting collection
After flowing valve 21, then reaches described left front running motor 11B mouthfuls by first flow divider-combiner 21 and gallop along on horseback with right move ahead
Up to 12A mouthfuls, the second flow distributing and collecting is reached through described left front running motor 11A mouthfuls and before the right side behind 12B mouthfuls of interflow of running motor
Valve 22, at the same time, the pressure oil of traveling pump actuator port B also arrive separately at left back row after flowing through third flow divider-combiner 23
Walk 14B mouthfuls of motor and it is right after 13A mouthful of running motor, then 13B mouthfuls of running motor closes through described left back running motor 14A mouthful and behind the right side
After stream traveling pump actuator port A is returned to through the second flow divider-combiner 22.When vehicle turns to the left, since the load of two wheels is big
Small different, the left front running motor 11 is loaded higher than running motor 12 before the right side so as to cause the pressure of left front running motor 11
Power oil is mended by the first damping unit 31 to running motor 12 before right, similarly, during right turn, front-rear axle and left and right wheels
Differential is all realized by the damping unit.
Although hydraulic moving control system can meet the walking ensured under aerial work platform most applications in the prior art
Demand for control, however, there are still following defects for this hydraulic moving control system：1, when equipment climbing when, due to center of gravity to
After move, complete vehicle weight is fallen on rear axle, preceding bridge grab ground not enough, had skidded so as to cause two wheels of preceding bridge, cause vehicle
40% slope cannot be climbed up；2, when vehicle is in high engine speeds, walking high speed steering, it may appear that engine falls fast phenomenon.By
Different in two nose-wheel turn radius, therefore, the rotating speed of two front-wheels is different, and is fixed since feed circuit damps,
If damping is too small, it will appear engine and fall speed or engine misses；And if damp excessive in feed circuit, can cause
There is tyre slip in the case of climbing or Uneven road.Part hydraulic moving control system in the prior art is i.e. enabled to keep away
Slippage problems when that exempts from that high turning speed brings speed or big ramp angle or hanging wheel, also tend to take into account simultaneously big
What the skidding and high turning speed that ramp angle is brought were brought speed.
Invention content
The technical problem to be solved by the present invention is to：Fall fast problem when a kind of not only avoidable high speed steering is provided, but also can keep away
Exempt from the hydraulic moving control system of slippage problems when climbing or hanging wheel.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of hydraulic moving control system, including
Traveling pump, hoofing part motor sub-assembly, flow-dividing control unit and damping unit, the traveling pump, flow-dividing control unit and walking
Drive motor assembly is sequentially connected；The damping unit is in parallel with the flow-dividing control unit, and the damping unit has and can cut
The small damping output mode and big damping output mode changed.
Further, the damping unit includes adjustable throttling component, and the adjustable throttling component passes through regulating valve
Body opening size realizes the switching of small damping output mode and big damping output mode.
Further, the damping unit includes damper assembly and damping commutation component, the damper assembly and the resistance
Buddhist nun is commutated, and component is in parallel with the flow-dividing control unit respectively, and the damping value of the damper assembly is less than damping commutation component
Damping value；For the damper assembly for realizing small damping output mode, the damping commutation component is defeated for realizing damping greatly
Go out pattern.
Further, the hoofing part motor sub-assembly, which includes left front running motor, left back running motor, the right side is forward gallops along on horseback
Up to running motor behind the right side, the left front running motor with it is described it is right before running motor be connected to form preceding bridge loop, it is described left back
Running motor with it is described it is right after running motor be connected to be formed after bridge loop；The left front running motor and the left back running motor
Connection；
The flow-dividing control unit includes the first flow divider-combiner, the second flow divider-combiner and third flow divider-combiner；Institute
The first flow divider-combiner is stated in the preceding bridge loop, the third flow divider-combiner is set in the rear bridge loop；It is described
Second flow divider-combiner is set on the pipeline for being connected to the left front running motor and the left back running motor；
The damper assembly includes 3 damping units, and the damping commutation component includes 3 damping reversing arrangements, described
After first flow divider-combiner, the second flow divider-combiner and third flow divider-combiner are respectively in parallel with a damping unit respectively,
Distinguish again respectively in parallel with a damping reversing arrangement.
Further, it is equipped with throttle on the damping unit and the damping reversing arrangement.
Further, the damping unit is throttle valve, and the damping reversing arrangement is throttled directional valve.
Further, it is equipped with damper portion on the damping unit and the damping reversing arrangement.
Further, the damping unit is orifice valve, and the damping reversing arrangement is damping reversal valve.
Further, the damper portion or throttle are pore structure, and the pore structure aperture in the damping unit is 0.5
~0.8mm, the pore structure aperture damped in reversing arrangement are 1.8~3.0mm.
Further, the damping reversing arrangement includes reversal valve and orifice valve.
Further, the damping reversing arrangement includes reversal valve and adjustable throttling.
Further, the reversal valve is pilot operated directional control valve or electric control reversing valve.
Preferably, the reversal valve is 2/2-way pilot operated directional control valve or 2/2-way electric control reversing valve.
Further, the traveling pump is equipped with traveling pump actuator port A and traveling pump actuator port B, described first point
Stream combiner valve and the second flow divider-combiner are connected to the traveling pump actuator port B respectively, the third flow divider-combiner and institute
State the A connections of traveling pump actuator port；The left front running motor, left back running motor, it is right before walk behind running motor and the right side horse
Up to upper respectively at least provided with A mouthfuls and B mouthfuls, first flow divider-combiner respectively with described left front running motor B mouthfuls and it is right before
A mouthfuls of running motor is connected；The third flow divider-combiner respectively with described left back running motor B mouthfuls and it is right after A mouthfuls of running motor
It is connected.
The beneficial effects of the present invention are：The flow-dividing control unit is in parallel with the adjustable damping damping unit of size,
So that the damping size in feed circuit can be with adjusting control, to realize while take into account skidding and height that big ramp angle is brought
What turning speed was brought the purpose of speed, when high speed steering, using big damping mode, engine is avoided to fall speed or flame-out；And
When climbing or Uneven road, then small damping mode is used, tyre slip phenomenon is avoided the occurrence of；The hydraulic moving of the present invention program
Control system is stable and reliable for performance；Compared with prior art, the hydraulic moving control system of the present invention program had both improved high speed
Differential effect when walking turns to also improves cross-country effect when low speed climbing.
Description of the drawings
Fig. 1 is the structural schematic diagram of hydraulic moving control system in the prior art；
Fig. 2 is the structural schematic diagram of the hydraulic moving control system of the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of the hydraulic moving control system of 2-4 of the embodiment of the present invention.
Label declaration：
11, left front running motor；12, running motor before the right side；13, running motor behind the right side；14, left back running motor；21,
One flow divider-combiner；22, the second flow divider-combiner；23, third flow divider-combiner；31, the first damping unit；32, the second damping
Device；33, third damping unit；41, the first adjustable throttling；42, the second adjustable throttling；43, third adjustable throttling；
51, the first damping reversing arrangement；511,2/2-way pilot operated directional control valve；52, the second damping reversing arrangement；53, third damping is changed
To device.
Specific implementation mode
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
A kind of hydraulic moving control system, including traveling pump, hoofing part motor sub-assembly, flow-dividing control unit and damping are single
Member, the traveling pump, flow-dividing control unit and hoofing part motor sub-assembly are sequentially connected；The damping unit is controlled with the shunting
Unit processed is in parallel, and the damping unit has changeable small damping output mode and big damping output mode.
As can be seen from the above description, the beneficial effects of the present invention are：The flow-dividing control unit and adjustable damping size
Damping unit it is in parallel so that the damping size in feed circuit can be with adjusting control, to realize while take into account big upgrade angle
The skidding brought and the purpose for speed that high turning speed is brought is spent, using big damping mode, to avoid starting when high speed steering
Machine falls speed or flame-out；And when climbing or Uneven road, then small damping mode is used, tyre slip phenomenon is avoided the occurrence of；This hair
The hydraulic moving control system of bright scheme is stable and reliable for performance；Compared with prior art, the hydraulic moving control of the present invention program
System had both improved differential effect when high speed walking turns to, and also improved cross-country effect when low speed climbing.
Further, the damping unit includes adjustable throttling component, and the adjustable throttling component passes through regulating valve
Body opening size realizes the switching of small damping output mode and big damping output mode.
As can be seen from the above description, the beneficial effects of the present invention are：Using high can throttling for multiple adjustable throttlings composition
The big minor adjustment of the damping in feed circuit can be realized by regulation valve body aperture in valve module, easy to operate reliable.
Further, the damping unit includes damper assembly and damping commutation component, the damper assembly and the resistance
Buddhist nun is commutated, and component is in parallel with the flow-dividing control unit respectively, and the damping value of the damper assembly is less than damping commutation component
Damping value；For the damper assembly for realizing small damping output mode, the damping commutation component is defeated for realizing damping greatly
Go out pattern.
As can be seen from the above description, the beneficial effects of the present invention are：The flow-dividing control unit respectively with damper assembly and
Damping commutation modules in parallel, the damping value of damper assembly is less than the damping value of damping commutation component, to realize feed circuit
The control of size is damped, the damper assembly of small damping can prevent from skidding when climbing, and the damping commutation resistor damped greatly ensures height
Speed turns to differential, is unlikely to speed；When vehicle turns left, pressure oil is formed by damping commutation component and refills road, to real
The differential of existing left front running motor and running motor before the right side operates；Similarly, vehicle also can reversely realize difference when dextrad is turned
Speed operating；Damping commutation component, not only can control the flow direction of hydraulic oil, but also the stream of hydraulic oil can be hindered after fuel cut-off
It is dynamic so that equipment operation is more stable, to improve the stability of equipment operation.
Further, the hoofing part motor sub-assembly, which includes left front running motor, left back running motor, the right side is forward gallops along on horseback
Up to running motor behind the right side, the left front running motor with it is described it is right before running motor be connected to form preceding bridge loop, it is described left back
Running motor with it is described it is right after running motor be connected to be formed after bridge loop；The left front running motor and the left back running motor
Connection；
The flow-dividing control unit includes the first flow divider-combiner, the second flow divider-combiner and third flow divider-combiner；Institute
The first flow divider-combiner is stated in the preceding bridge loop, the third flow divider-combiner is set in the rear bridge loop；It is described
Second flow divider-combiner is set on the pipeline for being connected to the left front running motor and the left back running motor；
The damper assembly includes 3 damping units, and the damping commutation component includes 3 damping reversing arrangements, described
After first flow divider-combiner, the second flow divider-combiner and third flow divider-combiner are respectively in parallel with a damping unit respectively,
Distinguish again respectively in parallel with a damping reversing arrangement.
As can be seen from the above description, the beneficial effects of the present invention are：When vehicle turns left, commutated by the damping added
Running motor before component makes the pressure oil in left front running motor mend to the right side is galloped along on horseback to realize that left front running motor moves ahead with the right side
The differential operating reached；Similarly, vehicle also can reversely realize that differential operates when dextrad is turned.
Further, it is equipped with throttle on the damping unit and the damping reversing arrangement.
Further, the damping unit is throttle valve, and the damping reversing arrangement is throttled directional valve.
As can be seen from the above description, the beneficial effects of the present invention are：Throttle is set, different damping can be arranged as required to
The throttle of size, both can be used adjustable throttling, and non-adjustable restrictor can also be used, then can root according to adjustable throttling
According to adjustment damping value is needed, the fluid parameters such as flow, the flowing velocity of hydraulic oil are controlled, prevents from hitting caused by hydraulic shock and make
With the stability in the raising device course of work and safety；Also damping value range selection that can be as needed suitably can not
Flow regulating valve, it is same to can be achieved to control the fluid parameter of hydraulic oil, to improving stability and safety.
Further, it is equipped with damper portion on the damping unit and the damping reversing arrangement.
Further, the damping unit is orifice valve, and the damping reversing arrangement is damping reversal valve.
As can be seen from the above description, the beneficial effects of the present invention are：Using being integrated with damping and reversal valve acts on one
Throttled directional valve or damping reversal valve so that operation it is more easy；The damping for increasing runner by damper portion, makes the urgency of fluid
Drastic change is gently got off by damper portion, the stability of lifting device and safety.
Further, the damper portion or throttle are pore structure, and the pore structure aperture in the damping unit is 0.5
~0.8mm, the pore structure aperture damped in reversing arrangement are 1.8~3.0mm.
Further, the damping reversing arrangement includes reversal valve and orifice valve.
Further, the damping reversing arrangement includes reversal valve and adjustable throttling.
Further, the reversal valve is pilot operated directional control valve or electric control reversing valve.
Preferably, the reversal valve is 2/2-way pilot operated directional control valve or 2/2-way electric control reversing valve.
Further, the traveling pump is equipped with traveling pump actuator port A and traveling pump actuator port B, described first point
Stream combiner valve and the second flow divider-combiner are connected to the traveling pump actuator port B respectively, the third flow divider-combiner and institute
State the A connections of traveling pump actuator port；The left front running motor, left back running motor, it is right before walk behind running motor and the right side horse
Up to upper respectively at least provided with A mouthfuls and B mouthfuls, first flow divider-combiner respectively with described left front running motor B mouthfuls and it is right before
A mouthfuls of running motor is connected；The third flow divider-combiner respectively with described left back running motor B mouthfuls and it is right after A mouthfuls of running motor
It is connected.
As can be seen from the above description, the beneficial effects of the present invention are：First flow divider-combiner respectively with it is described left front
B mouthfuls of running motor is connected with A mouthfuls of running motor before the right side, is shunted for realizing the left and right wheels of preceding bridge；The third flow divider-combiner
It is connected respectively with A mouthfuls of running motor after described left back running motor B mouthfuls and the right side, is shunted for realizing the left and right wheels of rear axle.
Further, three damping units in the damper assembly are identical, and three in the damping commutation component
A damping unit is also identical.
It please refers to shown in Fig. 2, the embodiment of the present invention one is：A kind of hydraulic moving control system, including traveling pump, walking
Drive motor assembly, flow-dividing control unit and damping unit, the traveling pump, flow-dividing control unit and hoofing part motor sub-assembly
It is sequentially connected；The damping unit is in parallel with the flow-dividing control unit, and the damping unit has changeable small damping defeated
Go out pattern and big damping output mode.
The damping unit includes adjustable throttling component, the adjustable throttling component include the first adjustable throttling,
Second adjustable throttling and third adjustable throttling.
The traveling pump is equipped with actuator port A and actuator port B；The hoofing part motor sub-assembly includes left front walking
Motor 11, it is right before running motor 12, it is right after running motor 13 and left back running motor 14, the left front running motor 11 with it is described
Bridge loop before the connection of running motor 12 is formed before the right side, the left back running motor 14 are connected to formation with running motor 13 behind the right side
Bridge loop afterwards；The left front running motor 11 is connected to the left back running motor 14；
The flow-dividing control unit includes the first flow divider-combiner 21, the second flow divider-combiner 22 and third flow divider-combiner
23；First flow divider-combiner 21 is set in the preceding bridge loop, and the third flow divider-combiner 23 is returned set on the rear axle
On the road；Second flow divider-combiner 22 is set to the pipeline for being connected to the left front running motor 11 and the left back running motor 14
On；
The traveling pump actuator port A is connected with the second flow divider-combiner 22, for realizing the shunting of preceding bridge and rear axle；Institute
The first flow divider-combiner 21 is stated respectively to be connected with 12A mouthfuls of running motor before described left front running motor 11B mouthfuls and the right side, for realizing
The left and right wheels of preceding bridge shunt；The third flow divider-combiner 23 respectively with described left back running motor 14B mouthfuls and it is right after walk horse
It is connected up to 13A mouthfuls, is shunted for realizing the left and right wheels of rear axle；The traveling pump actuator port B and first flow divider-combiner
21 are connected with third flow divider-combiner 23；First adjustable throttling 41 is in parallel with first flow divider-combiner 21；It is described
Second adjustable throttling 42 is in parallel with second flow divider-combiner 22；The third adjustable throttling 43 is shunted with the third
Combiner valve 23 is in parallel.
The course of work of the present invention program is as follows：When Chinese herbaceous peony into when, the pressure oil in traveling pump actuator port B flows into described
After first flow divider-combiner 21,12A mouthfuls of running motor before described left front running motor 11B mouthfuls and the right side is reached, through the left front row
Walk 11A mouthfuls of motor and it is right before reach the second flow divider-combiner 22 behind 12B mouthful interflow of running motor, at the same time, walking pump work
The pressure oil of hydraulic fluid port B also arrived separately at after flowing through third flow divider-combiner 23 left back running motor 14B mouthfuls and it is right after walk horse
Up to 13A mouthfuls, then through the second flow divider-combiner 22 after through described left back running motor 14A mouthfuls and after right, 13B mouthful of running motor collaborates
Return to traveling pump actuator port A.When vehicle low speed is walked and is turned to the left, since the load of two Chinese herbaceous peony wheels is different,
Adjusting adjustable throttling valve body aperture makes its output damping size be suitable small damping mode range, the left front running motor
11 load passes through adjustable throttling so as to cause the pressure oil of left front running motor 11 higher than running motor 12 before the right side and mends to the right side
Preceding running motor 12.Since speed is low to the of less demanding of differential, pass through can meeting the requirements for small damping value.Work as vehicle
Climbing or it is any it is hanging after, be unlikely to there are more hydraulic energies to go in vacantly taking turns, improve climbing effect, prevent simultaneously
Tyre slip phenomenon.And when vehicle presses high speed button, adjustable throttling valve body opening size is switched to big damping mode；
When turning to the left, since the load of two-wheeled is different, the load of left front running motor 11 is higher than running motor 12 before the right side, from
And causes the pressure oil of left front running motor 11 swimmingly to be mended by the adjustable throttling of big damping value pattern to the right side is forward and gallop along on horseback
Up to 12 to realize high speed steering differential；Similarly, all may be used when the high speed walking of left steering, front-rear axle, left and right wheels turns to differential
To realize differential to the adjusting of flow by adjustable throttling；And the hanging climbing of low speed is then the small resistance by adjustable throttling
Buddhist nun's value pattern prevents tyre slip to realize.
It please refers to shown in Fig. 3, the embodiment of the present invention two is：A kind of all-hydraulic traveling control system that protected tyre skids, packet
Include traveling pump, hoofing part motor sub-assembly, flow-dividing control unit and damping unit, the traveling pump, flow-dividing control unit and row
Drive motor assembly is walked to be sequentially connected；The damping unit is in parallel with the flow-dividing control unit, and the damping unit has can
The small damping output mode of switching and big damping output mode.The traveling pump is equipped with actuator port A and actuator port B；Institute
State hoofing part motor sub-assembly include left front running motor 11, left back running motor 14, it is right before walk behind running motor 12 and the right side
Motor 13, bridge loop before the left front running motor 11 is connected to formation with running motor 12 before the right side, the left back walking horse
Bridge loop after being connected to formation with running motor 13 behind the right side up to 14；The left front running motor 11 and the left back running motor
14 connections；
The flow-dividing control unit includes the first flow divider-combiner 21, the second flow divider-combiner 22 and third flow divider-combiner
23；First flow divider-combiner 21 is set in the preceding bridge loop, and the third flow divider-combiner 23 is returned set on the rear axle
On the road；Second flow divider-combiner 22 is set to the pipeline for being connected to the left front running motor 11 and the left back running motor 14
On；
The damping unit includes damper assembly and damping commutation component, and the damper assembly includes the first damping unit
31, the second damping unit 32 and third damping unit 33, the damping commutation component include the first damping reversing arrangement 51, second
It damps reversing arrangement 52 and third damps reversing arrangement 53, the first damping reversing arrangement 51, second damps reversing arrangement 52
Include respectively a damping unit being serially connected and a 2/2-way pilot operated directional control valve with third damping reversing arrangement 53
511, wherein the 2/2-way pilot operated directional control valve 511 in the first damping reversing arrangement 51 and third damping commutation dress
Set the 2/2-way pilot operated directional control valve connection in 53；Peripheral hardware controls oil sources and two two in the first damping reversing arrangement 51
Logical pilot operated directional control valve 511 is connected, and with the 2/2-way pilot operated directional control valve 511 be connected in the first damping reversing arrangement 51 and
The pipeline of 2/2-way pilot operated directional control valve in the third damping reversing arrangement 53 is connected；
The traveling pump actuator port A is connected with the second flow divider-combiner 22, for realizing the shunting of preceding bridge and rear axle；Institute
The first flow divider-combiner 21 is stated respectively to be connected with 12A mouthfuls of running motor before described left front running motor 11B mouthfuls and the right side, for realizing
The left and right wheels of preceding bridge shunt；The third flow divider-combiner 23 respectively with described left back running motor 14B mouthfuls and it is right after walk horse
It is connected up to 13A mouthfuls, is shunted for realizing the left and right wheels of rear axle；The traveling pump actuator port B and first flow divider-combiner
21 are connected with third flow divider-combiner 23；First damping unit 31 is in parallel with first flow divider-combiner 21, and described
One damping reversing arrangement 51 is in parallel with first flow divider-combiner 21；Second damping unit 32 collects with second shunting
It is in parallel to flow valve 22, the second damping reversing arrangement 52 is in parallel with second flow divider-combiner 22；The third damping unit
33 is in parallel with the third flow divider-combiner 23, and the third damping reversing arrangement 53 and the third flow divider-combiner 23 are simultaneously
Connection.
The course of work of the present invention program is as follows：When Chinese herbaceous peony into when, the pressure oil in traveling pump actuator port B flows into described
After first flow divider-combiner 21, A mouthfuls of running motor before described left front running motor B mouthfuls and the right side is reached, through the left front walking horse
The second flow divider-combiner 22 is reached up to A mouthfuls and before right behind 12B mouthfuls of interflow of running motor, at the same time, traveling pump actuator port B's
Pressure oil also arrived separately at after flowing through third flow divider-combiner 23 left back running motor 14B mouthfuls and it is right after 13A mouthfuls of running motor,
Again walking is returned to through the second flow divider-combiner 22 through described left back running motor 14A mouthfuls and after right behind 13B mouthfuls of interflow of running motor
Pump work hydraulic fluid port A.It is described left front since the load of two Chinese herbaceous peony wheels is different when vehicle low speed is walked and is turned to the left
The load of running motor 11 passes through the first damping higher than running motor 12 before the right side, so as to cause the pressure oil of left front running motor 11
Running motor 12 before device 31 is mended to the right side.Since speed is low to the of less demanding of differential, pass through the first small resistance of damping value
Buddhist nun's device 31 can be met the requirements.When vehicle climbing or it is any hanging after, be unlikely to there are more hydraulic energies to go to vacantly take turns
In, climbing effect is improved, while preventing tyre slip phenomenon.And when vehicle presses high speed button, control oil sources opens the
2/2-way hydraulicdirectional control valve 511 in one damping reversing arrangement 51 makes it become connected state from open close state, turns to the left
When, since the load of two-wheeled is different, the load of left front running motor 11 is higher than running motor 12 before the right side, left front walking horse
Up to 11 pressure oil swimmingly mended to the right side by the damping unit in the first damping reversing arrangement 51 before running motor 12 to real
Existing high speed steering differential；Similarly, damping can be passed through when the high speed walking of left steering, front-rear axle, left and right wheels turns to differential
Component commutate to realize differential；And vacantly climbing is then to prevent tyre slip by damper assembly to realize to low speed.
The embodiment of the present invention three is：A kind of hydraulic moving control system, wherein the first damping reversing arrangement 51,
Second damping reversing arrangement 52 and third damping reversing arrangement 53 include respectively a damping unit being serially connected and one
2/2-way electric control reversing valve, other parts and connection relation are identical as embodiment one.
The embodiment of the present invention four is：A kind of hydraulic moving control system, wherein the first damping reversing arrangement 51, the
Two damping reversing arrangements 52 and third damping reversing arrangement 53 are throttled directional valve；Other parts and connection relation with reality
Apply that example one is identical, the throttle orifice aperture of the throttled directional valve is 3.0mm.
In conclusion a kind of hydraulic moving control system provided by the invention, the system is in parallel on flow-dividing control unit
Two kinds of different size of throttling oil ducts not only can avoid climbing, tire vacantly skids but also can promote differential effect when high speed is walked.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, include similarly
In the scope of patent protection of the present invention.
Claims (10)
1. a kind of hydraulic moving control system, including traveling pump, hoofing part motor sub-assembly, flow-dividing control unit and damping are single
Member, the traveling pump, flow-dividing control unit and hoofing part motor sub-assembly are sequentially connected；The damping unit is controlled with the shunting
Unit processed is in parallel, it is characterised in that：The damping unit has changeable small damping output mode and big damping output mode.
2. hydraulic moving control system according to claim 1, it is characterised in that：The damping unit includes adjustable throttling
Valve module, the adjustable throttling component realize that small damping output mode and big damping export mould by regulation valve body opening size
The switching of formula.
3. hydraulic moving control system according to claim 1, it is characterised in that：The damping unit includes damper assembly
With damping commutation component, the damper assembly and damping commutation component are in parallel with the flow-dividing control unit respectively, described
The damping value of damper assembly is less than the damping value of the damping commutation component；The damper assembly exports mould for realizing small damping
Formula, the damping commutation component is for realizing big damping output mode.
4. hydraulic moving control system according to claim 3, it is characterised in that：The hoofing part motor sub-assembly includes
Left front running motor, left back running motor, it is right before running motor, the left front running motor and the right side behind running motor and the right side
Preceding running motor forms preceding bridge loop by pipeline connection, and the left back running motor passes through pipeline with running motor behind the right side
Bridge loop after connection is formed；The left front running motor passes through pipeline connection with the left back running motor；
The flow-dividing control unit includes the first flow divider-combiner, the second flow divider-combiner and third flow divider-combiner；Described
One flow divider-combiner is set in the preceding bridge loop, and the third flow divider-combiner is set in the rear bridge loop；Described second
Flow divider-combiner is set on the pipeline for being connected to the left front running motor and the left back running motor；
The damper assembly includes 3 damping units, and damping commutation component includes 3 damping reversing arrangements, and described first
After flow divider-combiner, the second flow divider-combiner and third flow divider-combiner are respectively in parallel with a damping unit respectively, then divide
It is respectively not in parallel with a damping reversing arrangement.
5. hydraulic moving control system according to claim 4, it is characterised in that：The damping unit and the damping are changed
Throttle is equipped on device.
6. pressure traveling control system according to claim 5, it is characterised in that：The damping unit is throttle valve, described
Damping reversing arrangement is throttled directional valve.
7. hydraulic moving control system according to claim 4, it is characterised in that：The damping unit and the damping are changed
Damper portion is equipped on device.
8. hydraulic moving control system according to claim 7, it is characterised in that：The damping unit is orifice valve, institute
It is damping reversal valve to state damping reversing arrangement.
9. hydraulic moving control system according to claim 4, it is characterised in that：The damping reversing arrangement includes commutation
Valve and orifice valve；The reversal valve is pilot operated directional control valve or electric control reversing valve.
10. hydraulic moving control system according to claim 4, it is characterised in that：The traveling pump is equipped with traveling pump
Actuator port A and traveling pump actuator port B, first flow divider-combiner and the second flow divider-combiner respectively with the traveling pump
Actuator port B connections, the third flow divider-combiner are connected to the traveling pump actuator port A；
The left front running motor, left back running motor, it is right before behind running motor and the right side on running motor respectively at least provided with A
Mouthful and B mouthful, first flow divider-combiner respectively with described left front running motor B mouthfuls and the right side before A mouthfuls of running motor be connected；It is described
Third flow divider-combiner is connected with A mouthfuls of running motor after described left back running motor B mouthfuls and the right side respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469470.0A CN108412827B (en) | 2018-05-16 | 2018-05-16 | Hydraulic walking control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469470.0A CN108412827B (en) | 2018-05-16 | 2018-05-16 | Hydraulic walking control system |
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| CN108412827A true CN108412827A (en) | 2018-08-17 |
| CN108412827B CN108412827B (en) | 2024-03-08 |
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| CN201810469470.0A Active CN108412827B (en) | 2018-05-16 | 2018-05-16 | Hydraulic walking control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744999A (en) * | 2019-10-28 | 2020-02-04 | 韩国昊 | Hydraulic differential control system for vehicle |
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| CN108412827B (en) | 2024-03-08 |
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