CN109340203A - Hydraulic moving control system and hydraulic travel system - Google Patents
Hydraulic moving control system and hydraulic travel system Download PDFInfo
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- CN109340203A CN109340203A CN201811491088.6A CN201811491088A CN109340203A CN 109340203 A CN109340203 A CN 109340203A CN 201811491088 A CN201811491088 A CN 201811491088A CN 109340203 A CN109340203 A CN 109340203A
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- 239000012530 fluid Substances 0.000 claims abstract description 33
- 239000002828 fuel tank Substances 0.000 claims abstract description 16
- 239000003921 oil Substances 0.000 description 121
- 238000005265 energy consumption Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 206010037660 Pyrexia Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The embodiment of the invention discloses a kind of hydraulic moving control systems, comprising: pressure-gradient control valve, brake valve, direction valve, check valve and traveling control device；The oil inlet of pressure-gradient control valve is for connecting pressure oil-source, and the priority port of pressure-gradient control valve is connected to the oil inlet of direction valve, and the by-pass port of pressure-gradient control valve is connected to the oil inlet of traveling control device；The oil return opening of direction valve is connected to the oil inlet of check valve, and multiple actuator ports of direction valve are used to connect the hydraulic fluid port for turning to actuator；The oil outlet of check valve is connected to the oil inlet of traveling control device；The oil inlet of brake valve is connected to the oil inlet of pressure-gradient control valve, and the actuator port of brake valve is used to connect the hydraulic fluid port of brake actuator, and the drain tap of brake valve is connected to the oil return opening of traveling control device；For the oil return opening of traveling control device for being connected to fuel tank, multiple actuator ports of traveling control device are used to connect the hydraulic fluid port of at least one running motor.The embodiment of the invention also discloses the hydraulic travel systems using above-mentioned control system.
Description
Technical field
The present invention relates to hydraulic moving control system field more particularly to a kind of hydraulic moving control systems and a kind of and liquid
Press running gear.
Background technique
In the traveling control system (such as traveling control system in walking scissor aerial work platform certainly) of single oil sources
In, the cracking pressure that parking braking is opened has certain pressure threshold, and this pressure is usual in simple running gear
The oil inlet of travel control valve is taken from, during level land or up-hill journey, the condition for meeting parking braking opening is equipment
Adequately, but equipment is when descending is walked, and motor stall keeps oil inlet insufficient, so that parking braking be caused to rise in the process of walking
Effect, makes its service life reduction or damage.Generally for avoiding the generation of this phenomenon that a sequence is often arranged on oil inlet oil circuit
Valve, setting value is equal to parking braking and fully opens pressure, to protect equipment safety.But a sequence valve is set on main oil gallery
System circuit resistance will be increased, and the resistance can't be utilized as oil compensation pressure, sheerly inefficiency loss power, increases energy consumption
And system heat generation.
Summary of the invention
To overcome the shortcomings of existing technologies and insufficient, the embodiment of the present invention provides a kind of low pressure loss, low energy consumption and low hair
The hydraulic moving control system and hydraulic travel system of heat.
On the one hand, the present invention provides a kind of hydraulic moving control system, the hydraulic moving control system includes: preferential
Valve, brake valve, direction valve, check valve and traveling control device；The oil inlet of the pressure-gradient control valve is described for connecting pressure oil-source
The priority port of pressure-gradient control valve is connected to the oil inlet of the direction valve, the by-pass port of the pressure-gradient control valve and the traveling control device
Oil inlet connection；The oil return opening of the direction valve is connected to the oil inlet of the check valve, multiple working oils of the direction valve
Mouth turns to the hydraulic fluid port of actuator for connecting；The oil inlet of the oil outlet of the check valve and the traveling control device connects
It is logical；The oil inlet of the brake valve is connected to the oil inlet of the pressure-gradient control valve, and the actuator port of the brake valve is for connecting
The hydraulic fluid port of brake actuator is connect, the drain tap of the brake valve is connected to the oil return opening of the traveling control device；The walking
The oil return opening of control device with fuel tank for being connected to, and multiple actuator ports of the traveling control device are for connecting at least
The hydraulic fluid port of one running motor.
In one embodiment of the invention, the hydraulic moving control system further include: the first overflow valve, described first
The oil inlet and oil outlet of overflow valve are connected to the priority port of the pressure-gradient control valve and the by-pass port correspondingly.
In one embodiment of the invention, the direction valve is the three position four-way directional control valve, and works as described three four
When logical reversal valve is located at middle position, described time of the oil inlet of the three position four-way directional control valve and the three position four-way directional control valve
Hydraulic fluid port connection.
In one embodiment of the invention, the brake valve is hydraulic control direction valve, and the hydraulic control direction valve has hydraulic control
Interface, and the hydraulic control interface is connected to the oil inlet of the traveling control device.
In one embodiment of the invention, the brake valve is automatically controlled direction valve, and the automatically controlled direction valve has automatically controlled
Interface, and the automatically controlled interface with electric-control system for connecting.
In one embodiment of the invention, the traveling control device has braking external controlled interface, and outside the braking
Control interface is connected to the actuator port of the brake valve.
In one embodiment of the invention, the hydraulic moving control system further include: second direction valve, the second overflow
Valve and third overflow valve, and the second direction valve is used to connect the oil inlet of the pressure oil-source to the pressure-gradient control valve；
Wherein, the oil inlet of the second direction valve is for connecting the pressure oil-source, and the oil return opening of the second direction valve is for connecting
The fuel tank is connect, the first actuator port of the second direction valve is used to connect the hydraulic fluid port of third actuator, the second direction
Second actuator port of valve is connected to the oil inlet of the pressure-gradient control valve；The oil inlet and oil outlet one of second overflow valve
One is accordingly connected to the oil inlet of the second direction valve and the oil return opening；The oil inlet of the third overflow valve and
Oil outlet is connected to first actuator port of the second direction valve and the oil return opening correspondingly.
On the other hand, the present invention also provides a kind of hydraulic travel system, the hydraulic travel system include: pressure-gradient control valve,
Overflow valve, direction valve, check valve, traveling control device, at least one running motor, brake actuator, turns to execution at brake valve
Device, pressure oil-source and fuel tank；The oil inlet of the pressure-gradient control valve connects the pressure oil-source, the priority port of the pressure-gradient control valve with it is described
The oil inlet of direction valve is connected to, and the by-pass port of the pressure-gradient control valve is connected to the oil inlet of the traveling control device；Overflow valve, institute
The oil inlet and oil outlet for stating overflow valve are connected to the priority port of the pressure-gradient control valve and the by-pass port correspondingly；Institute
The oil return opening for stating direction valve is connected to the oil inlet of the check valve, multiple actuator ports of the direction valve correspondingly with
The multiple hydraulic fluid ports connection for turning to actuator；The oil inlet of the oil outlet of the check valve and the traveling control device
Connection；The oil inlet of the brake valve is connected to the oil inlet of the pressure-gradient control valve, described in the actuator port of the brake valve
The hydraulic fluid port of brake actuator is connected to, and the drain tap of the brake valve is connected to the oil return opening of the traveling control device；The row
The oil return opening for walking control device is connected to the fuel tank, multiple hydraulic fluid ports of the traveling control device correspondingly with institute
State multiple hydraulic fluid ports connection of at least one running motor.
In one embodiment of the invention, the brake valve is hydraulic control direction valve, and the hydraulic control direction valve has hydraulic control
Interface, and the hydraulic control interface is connected to the oil inlet of the traveling control device；Or the brake valve is automatically controlled side
To valve, the automatically controlled direction valve has automatically controlled interface, and the automatically controlled interface with electric-control system for connecting；Or the walking
Control device has braking external controlled interface, and the braking external controlled interface is connected to the actuator port of the brake valve.
In one embodiment of the invention, the hydraulic travel system further include: second direction valve, the second overflow valve,
Third overflow valve and third actuator, and the second direction valve connects the oil inlet of the pressure oil-source to the pressure-gradient control valve
Mouthful；Wherein, the oil inlet of the second direction valve is connected to the pressure oil-source, the oil return opening of the second direction valve with it is described
Fuel tank connection, the first actuator port of the second direction valve are connected to the hydraulic fluid port of the third actuator, the second direction
Second actuator port of valve is connected to the oil inlet of the pressure-gradient control valve；The oil inlet and oil outlet one of second overflow valve
One is accordingly connected to the oil inlet of the second direction valve and the oil return opening；The oil inlet of the third overflow valve and
Oil outlet is connected to first actuator port of the second direction valve and the oil return opening correspondingly.
Hydraulic moving control system and hydraulic travel system of the invention is by using new brake release scheme: making to brake
The braking valve for vehicle that comes to meet that pressure oil takes from pressure-gradient control valve opens requirement (since pressure-gradient control valve is in the walking process of any operating condition
Middle operting differential pressure is in 15bar or more), while the unlatching of brake valve is associated with travelling control signal or traveling control device oil inlet
Operating pressure (when not working, inlet pressure is lower than the operating pressure threshold value of brake valve for walking), thereby ensure that brake valve
It is harmonious with walking motion, in addition, due to avoiding that a sequence valve, hydraulic moving control of the invention are arranged on main oil gallery
System processed and hydraulic travel system all have the advantages of low pressure loss, low energy consumption and low fever.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is the hydraulic moving control system of the embodiment of the present invention and the schematic diagram of hydraulic travel system；
Fig. 2 is the further principles figure of the hydraulic travel system in Fig. 1；
Fig. 3 is the further principles figure of the hydraulic travel system in Fig. 1；
Fig. 4 is the further principles figure of the hydraulic travel system in Fig. 1；
Fig. 5 is the further principles figure of the hydraulic travel system in Fig. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
First embodiment
As shown in Figure 1, the first embodiment of the present invention provides a kind of hydraulic moving control system 100, comprising: pressure-gradient control valve 1,
Brake valve 3, direction valve 4, check valve 5 and traveling control device 6；The oil inlet P 1.1 of the pressure-gradient control valve 1 is for connecting pressure oil
Source, the priority port P1.3 of the pressure-gradient control valve 1 are connected to the oil inlet P 4.3 of the direction valve 4, the by-pass port of the pressure-gradient control valve 1
P1.2 is connected to the oil inlet P 6.2 of the traveling control device 6；The oil return opening P4.1 of the direction valve 4 and the check valve 5
Oil inlet P 5.1 be connected to, multiple actuator port P4.2, P4.4 of the direction valve 4 are used to connect the oil of steering actuator L4
Mouthful；The oil outlet P5.2 of the check valve 5 is connected to the oil inlet P 6.2 of the traveling control device 6；The brake valve 3
Oil inlet P 3.3 be connected to the oil inlet P 1.1 of the pressure-gradient control valve 1, the actuator port P3.2 of the brake valve 3 is for connecting
Meet the hydraulic fluid port of brake actuator L3, the oil return opening P6.1 company of the drain tap P3.1 of the brake valve 3 and the traveling control device 6
It is logical；The oil return opening P6.1 of the traveling control device 6 with fuel tank for being connected to, multiple works of the traveling control device 6
Make hydraulic fluid port P6.3, P6.6, P6.4, P6.5 for connecting the hydraulic fluid port of at least one running motor.
It should be noted that above-mentioned pressure-gradient control valve 1, brake valve 3, direction valve 4, check valve 5 and traveling control device 6 it is specific
Type can according to need setting, these are belonged within range of the technology design of the invention, for example, direction valve 4 can be
Three position four-way directional control valve.
Specifically, the hydraulic moving control system 100 further include: overflow valve 2, the oil inlet P 2.1 of the overflow valve 2
It is connected to correspondingly with the priority port P1.3 of the pressure-gradient control valve 1 and the by-pass port P1.2 with oil outlet P2.2, so as to
Play the role of level pressure overflow, pressure stabilizing, system unloaded and safeguard protection.
More specifically, the direction valve 4 is the three position four-way directional control valve, and it is located at when the three position four-way directional control valve
When position, the oil inlet P 4.3 of the three position four-way directional control valve and the oil return opening P4.1 of the three position four-way directional control valve connect
It is logical.
Further specifically, the brake valve 3 is hydraulic control direction valve (as shown in Fig. 2, for example hydraulic control two-position three way commutates
Valve), the hydraulic control direction valve has hydraulic control interface P3.4, and the institute of the hydraulic control interface P3.4 and the traveling control device 6
State the connection of oil inlet P 6.2；Or the brake valve 3 is automatically controlled direction valve (as shown in figure 3, for example automatically controlled two-position three way commutation
Valve), the automatically controlled direction valve has automatically controlled interface P3.4, and the automatically controlled interface P3.4 with electric-control system for connecting；And or
Traveling control device 6 described in person has braking external controlled interface P6.7 (as shown in Figure 4), and the braking external controlled interface P6.7 and institute
State the actuator port P3.2 connection of brake valve 3.
Further specifically, as shown in figure 5, the hydraulic moving control system 100 further include: direction valve 7 (such as two
Four-way reversing valve), overflow valve 8 and overflow valve 9, and the direction valve 7 is for connecting the pressure oil-source P to the pressure-gradient control valve 1
The oil inlet P 1.1；Wherein, the oil inlet P 7.3 of the direction valve 7 is for connecting the pressure oil-source P, the direction valve
7 oil return opening P7.1 is for connecting the fuel tank, and the first actuator port P7.2 of the direction valve 7 is for connecting actuator L5
(as: aerial work platform lifting cylinder or it is other with a kind of executing agency that with walking mode there is logic mutual exclusion to require
Be referred to as) hydraulic fluid port LA, the second actuator port P7.4 of the direction valve 7 is connected to the oil inlet P 1.1 of the pressure-gradient control valve 1；
The oil inlet P 8.1 and oil outlet P8.2 of the overflow valve 8 correspondingly with the oil inlet P 7.3 of the direction valve 7 and
The oil return opening P7.1 connection；The oil inlet P 9.1 and oil outlet P9.2 of the overflow valve 9 correspondingly with the direction valve 7
The first actuator port P7.2 be connected to the oil return opening P7.1.
Hydraulic moving control system 100 of the invention is by using new brake release scheme: brake pressure oil being made to take it
Meet braking valve for vehicle 3 before the pressure-gradient control valve 1 to open and require (since pressure-gradient control valve 1 works pressure in the walking process of any operating condition
Difference is in 15bar or more), while the unlatching of brake valve 3 is associated with the work of 6 oil inlet of travelling control signal or traveling control device
Pressure (when walking does not work, inlet pressure is lower than the operating pressure threshold value of brake valve 3), thereby ensures that brake valve 3 and row
The harmonious of movement is walked, in addition, hydraulic moving of the invention controls system due to avoiding that a sequence valve is arranged on main oil gallery
System 100 has the advantages that low pressure loss, low energy consumption and low fever.
Second embodiment
As shown in Figure 1, the second embodiment of the present invention provides a kind of hydraulic travel system 200, comprising: pressure-gradient control valve 1, overflow
Valve 2, brake valve 3, direction valve 4, check valve 5, traveling control device 6, at least one (such as two) running motor L1, L2, system
Dynamic actuator L3, actuator L4, pressure oil-source P and fuel tank T are turned to；The oil inlet P 1.1 of the pressure-gradient control valve 1 connects the pressure
Oil sources P, the priority port P1.3 of the pressure-gradient control valve 1 are connected to the oil inlet P 4.3 of the direction valve 4, the bypass of the pressure-gradient control valve 1
Mouth P1.2 is connected to the oil inlet P 6.2 of the traveling control device 6；Overflow valve 2, the oil inlet P 2.1 of the overflow valve 2 and go out
Hydraulic fluid port P2.2 is connected to the priority port P1.3 of the pressure-gradient control valve 1 and the by-pass port P1.2 correspondingly；The direction
The oil return opening P4.1 of valve 4 is connected to the oil inlet P 5.1 of the check valve 5, multiple actuator port P4.2 of the direction valve 4,
P4.4 is connected to described multiple hydraulic fluid port TA, TB for turning to actuator L4 correspondingly；The oil outlet P5.2 of the check valve 5 with
The oil inlet P 6.2 of the traveling control device 6 is connected to；The oil inlet P 3.3 of the brake valve 3 and the pressure-gradient control valve 1
The oil inlet P 1.1 is connected to, and the actuator port P3.2 of the brake valve 3 is connected to the hydraulic fluid port BR of the brake actuator L3, institute
The drain tap P3.1 for stating brake valve 3 is connected to the oil return opening P6.1 of the traveling control device 6；The traveling control device 6
The oil return opening P6.1 is connected to the fuel tank T, multiple hydraulic fluid port P6.3, P6.6, P6.4, P6.5 of the traveling control device 6
It is connected to correspondingly with multiple hydraulic fluid port F1, B1, B2, F2 of described at least one running motor L1, L2.
It should be noted that above-mentioned pressure-gradient control valve 1, overflow valve 2, brake valve 3, direction valve 4, check valve 5, traveling control device
6, running motor L1, L2, brake actuator L3, the concrete type for turning to actuator L4 can according to need setting, these are equal
Belong within the range of the technology design of type of the present invention, for example, direction valve 4 can be three position four-way directional control valve.
Specifically, the brake valve 3 is hydraulic control direction valve (as shown in Fig. 2, such as hydraulic-control two-position three-way reversing valve), described
Hydraulic control direction valve has hydraulic control interface P3.4, and the oil inlet of the hydraulic control interface P3.4 and the traveling control device 6
P6.2 connection；Or the brake valve 3 is automatically controlled direction valve (as shown in figure 3, for example automatically controlled two position three way directional control valve), the electricity
Controlling direction valve has automatically controlled interface P3.4, and the automatically controlled interface P3.4 with electric-control system for connecting；Or the walking
Control device 6 has braking external controlled interface P6.7 (as shown in Figure 4), and the braking external controlled interface P6.7 and the brake valve 3
The actuator port P3.2 connection.
More specifically, as shown in figure 5, the hydraulic travel system 200 further include: direction valve 7 (such as two-position four-way commutation
Valve), overflow valve 8, overflow valve 9 and actuator L5, and the direction valve 7 connects the institute of the pressure oil-source P to the pressure-gradient control valve 1
State oil inlet P 1.1；Wherein, the oil inlet P 7.3 of the direction valve 7 is connected to the pressure oil-source P, and the direction valve 7 returns
Hydraulic fluid port P7.1 is connected to the fuel tank T, and the hydraulic fluid port LA of the first actuator port P7.2 and the actuator L5 of the direction valve 7 connect
Logical, the second actuator port P7.4 of the direction valve 7 is connected to the oil inlet P 1.1 of the pressure-gradient control valve 1；The overflow valve 8
Oil inlet P 8.1 and oil outlet P8.2 correspondingly with the oil inlet P 7.3 of the direction valve 7 and the oil return opening
P7.1 connection；The oil inlet P 9.1 and oil outlet P9.2 of the overflow valve 9 correspondingly with the direction valve 7 described first
Actuator port P7.2 is connected to the oil return opening P7.1.
Hydraulic travel system 200 of the invention is by using new brake release scheme: taking from brake pressure oil excellent
Meet braking valve for vehicle 3 before first valve 1 and opens requirement (since operting differential pressure exists pressure-gradient control valve 1 in the walking process of any operating condition
15bar or more), while the unlatching of brake valve 3 is associated with the operating pressure of 6 oil inlet of travelling control signal or traveling control device
(when walking does not work, inlet pressure is lower than the operating pressure threshold value of brake valve 3) thereby ensures that brake valve 3 and walking are dynamic
That makees is harmonious, in addition, hydraulic travel system 200 of the invention has due to avoiding that a sequence valve is arranged on main oil gallery
There is the advantages of low pressure loss, low energy consumption and low fever.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of hydraulic moving control system (100) characterized by comprising pressure-gradient control valve (1), brake valve (3), direction valve
(4), check valve (5) and traveling control device (6)；
The oil inlet (P1.1) of the pressure-gradient control valve (1) for connecting pressure oil-source, the priority port (P1.3) of the pressure-gradient control valve (1) with
The oil inlet (P4.3) of the direction valve (4) is connected to, the by-pass port (P1.2) and the traveling control device of the pressure-gradient control valve (1)
(6) oil inlet (P6.2) connection；
The oil return opening (P4.1) of the direction valve (4) is connected to the oil inlet (P5.1) of the check valve (5), the direction valve
(4) multiple actuator ports (P4.2, P4.4) are used to connect the hydraulic fluid port for turning to actuator (L4)；
The oil outlet (P5.2) of the check valve (5) is connected to the oil inlet (P6.2) of the traveling control device (6)；
The oil inlet (P3.3) of the brake valve (3) is connected to the oil inlet (P1.1) of the pressure-gradient control valve (1), the braking
The actuator port (P3.2) of valve (3) is used to connect the hydraulic fluid port of brake actuator (L3), the drain tap (P3.1) of the brake valve (3)
It is connected to the oil return opening (P6.1) of the traveling control device (6)；
The oil return opening (P6.1) of the traveling control device (6) is used to be connected to fuel tank, the traveling control device (6)
Multiple actuator ports (P6.3, P6.6, P6.4, P6.5) are used to connect the hydraulic fluid port of at least one running motor.
2. hydraulic moving control system (100) as described in claim 1, which is characterized in that the hydraulic moving control system
(100) further include:
First overflow valve (2), the oil inlet (P2.1) and oil outlet (P2.2) of first overflow valve (2) correspondingly with institute
The priority port (P1.3) for stating pressure-gradient control valve (1) is connected to the by-pass port (P1.2).
3. hydraulic moving control system (100) as described in claim 1, which is characterized in that the direction valve (4) is described three
Position and four-way reversing valve, and when the three position four-way directional control valve is located at middle position, the oil inlet of the three position four-way directional control valve
(P4.3) it is connected to the oil return opening (P4.1) of the three position four-way directional control valve.
4. hydraulic moving control system (100) as described in claim 1, which is characterized in that the brake valve (3) is hydraulic control side
To valve, the hydraulic control direction valve has hydraulic control interface (P3.4), and the hydraulic control interface (P3.4) and the traveling control device
(6) the oil inlet (P6.2) connection.
5. hydraulic moving control system (100) as described in claim 1, which is characterized in that the brake valve (3) is automatically controlled side
To valve, the automatically controlled direction valve has automatically controlled interface (P3.4), and the automatically controlled interface (P3.4) with electric-control system for connecting.
6. hydraulic moving control system (100) as described in claim 1, which is characterized in that traveling control device (6) tool
Have braking external controlled interface (P6.7), and the actuator port of braking external controlled interface (P6.7) and the brake valve (3)
(P3.2) it is connected to.
7. the hydraulic moving control system (100) as described in any one of claim 1 to 6, which is characterized in that described hydraulic
Traveling control system (100) further include: second direction valve (7), the second overflow valve (8) and third overflow valve (9), and described second
Direction valve (7) is used to connect the oil inlet (P1.1) of the pressure oil-source (P) to the pressure-gradient control valve (1)；Wherein,
The oil inlet (P7.3) of the second direction valve (7) is for connecting the pressure oil-source (P), the second direction valve (7)
Oil return opening (P7.1) for connecting the fuel tank, the first actuator port (P7.2) of the second direction valve (7) is for connecting
The hydraulic fluid port of third actuator (L5), the second actuator port (P7.4) of the second direction valve (7) and the institute of the pressure-gradient control valve (1)
State oil inlet (P1.1) connection；
The oil inlet (P8.1) and oil outlet (P8.2) of second overflow valve (8) correspondingly with the second direction valve
(7) the oil inlet (P7.3) is connected to the oil return opening (P7.1)；
The oil inlet (P9.1) and oil outlet (P9.2) of the third overflow valve (9) correspondingly with the second direction valve
(7) first actuator port (P7.2) is connected to the oil return opening (P7.1).
8. a kind of hydraulic travel system (200) characterized by comprising pressure-gradient control valve (1), overflow valve (2), brake valve (3), side
To valve (4), check valve (5), traveling control device (6), at least one running motor (L1, L2), brake actuator (L3), turn to
Actuator (L4), pressure oil-source (P) and fuel tank (T)；
The oil inlet (P1.1) of the pressure-gradient control valve (1) connects the pressure oil-source (P), the priority port of the pressure-gradient control valve (1)
(P1.3) it is connected to the oil inlet (P4.3) of the direction valve (4), the by-pass port (P1.2) of the pressure-gradient control valve (1) and the walking
The oil inlet (P6.2) of control device (6) is connected to；
Overflow valve (2), the oil inlet (P2.1) and oil outlet (P2.2) of the overflow valve (2) correspondingly with the pressure-gradient control valve
(1) the priority port (P1.3) is connected to the by-pass port (P1.2)；
The oil return opening (P4.1) of the direction valve (4) is connected to the oil inlet (P5.1) of the check valve (5), the direction valve
(4) multiple actuator ports (P4.2, P4.4) connect with the multiple hydraulic fluid ports (TA, TB) for turning to actuator (L4) correspondingly
It is logical；
The oil outlet (P5.2) of the check valve (5) is connected to the oil inlet (P6.2) of the traveling control device (6)；
The oil inlet (P3.3) of the brake valve (3) is connected to the oil inlet (P1.1) of the pressure-gradient control valve (1), the braking
The actuator port (P3.2) of valve (3) is connected to the hydraulic fluid port (BR) of the brake actuator (L3), the drain tap of the brake valve (3)
(P3.1) it is connected to the oil return opening (P6.1) of the traveling control device (6)；
The oil return opening (P6.1) of the traveling control device (6) is connected to the fuel tank (T), the traveling control device
(6) multiple hydraulic fluid ports (P6.3, P6.6, P6.4, P6.5) are more at least one running motor (L1, L2) correspondingly
A hydraulic fluid port (F1, B1, B2, F2) connection.
9. hydraulic travel system (200) as claimed in claim 8, which is characterized in that the brake valve (3) is hydraulic control direction
Valve, the hydraulic control direction valve have hydraulic control interface (P3.4), and the hydraulic control interface (P3.4) and the traveling control device (6)
The oil inlet (P6.2) connection；Or the brake valve (3) is automatically controlled direction valve, the automatically controlled direction valve has automatically controlled connect
Mouth (P3.4), and the automatically controlled interface (P3.4) with electric-control system for connecting；Or the traveling control device (6) has system
Dynamic external controlled interface (P6.7), and the actuator port (P3.2) of braking external controlled interface (P6.7) and the brake valve (3)
Connection.
10. hydraulic travel system (200) as claimed in claim 8, which is characterized in that the hydraulic travel system (200) is also
It include: second direction valve (7), the second overflow valve (8), third overflow valve (9) and third actuator (L5), and the second direction
Valve (7) connects the oil inlet (P1.1) of the pressure oil-source (P) to the pressure-gradient control valve (1)；Wherein,
The oil inlet (P7.3) of the second direction valve (7) is connected to the pressure oil-source (P), the second direction valve (7)
Oil return opening (P7.1) is connected to the fuel tank (T), the first actuator port (P7.2) of the second direction valve (7) and the third
The hydraulic fluid port (LA) of actuator (L5) is connected to, the second actuator port (P7.4) of the second direction valve (7) and the pressure-gradient control valve (1)
The oil inlet (P1.1) connection；
The oil inlet (P8.1) and oil outlet (P8.2) of second overflow valve (8) correspondingly with the second direction valve
(7) the oil inlet (P7.3) is connected to the oil return opening (P7.1)；
The oil inlet (P9.1) and oil outlet (P9.2) of the third overflow valve (9) correspondingly with the second direction valve
(7) first actuator port (P7.2) is connected to the oil return opening (P7.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491088.6A CN109340203B (en) | 2018-12-07 | 2018-12-07 | Hydraulic walking control system and hydraulic walking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491088.6A CN109340203B (en) | 2018-12-07 | 2018-12-07 | Hydraulic walking control system and hydraulic walking system |
Publications (2)
| Publication Number | Publication Date |
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| CN109340203A true CN109340203A (en) | 2019-02-15 |
| CN109340203B CN109340203B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20130133966A1 (en) * | 2010-05-13 | 2013-05-30 | Jinan Jenhang Energy-Saving Technology Co., Ltd. | Traveling hydraulic handling machine of energy-saving type |
| WO2015165344A1 (en) * | 2014-04-29 | 2015-11-05 | 三一汽车制造有限公司 | Rotary hydraulic system and concrete conveying pump apparatus |
| CN105217504A (en) * | 2015-10-27 | 2016-01-06 | 中国矿业大学 | A kind of mining hydraulic winch electro-hydraulic proportional control system |
| CN206397839U (en) * | 2016-12-20 | 2017-08-11 | 徐工消防安全装备有限公司 | Travelling control valve group, hydraulic closed running gear and aerial working platform vehicle |
| CN209586820U (en) * | 2018-12-07 | 2019-11-05 | 湖南十开科技有限公司 | Hydraulic moving control system and hydraulic travel system |
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2018
- 2018-12-07 CN CN201811491088.6A patent/CN109340203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130133966A1 (en) * | 2010-05-13 | 2013-05-30 | Jinan Jenhang Energy-Saving Technology Co., Ltd. | Traveling hydraulic handling machine of energy-saving type |
| WO2015165344A1 (en) * | 2014-04-29 | 2015-11-05 | 三一汽车制造有限公司 | Rotary hydraulic system and concrete conveying pump apparatus |
| CN105217504A (en) * | 2015-10-27 | 2016-01-06 | 中国矿业大学 | A kind of mining hydraulic winch electro-hydraulic proportional control system |
| CN206397839U (en) * | 2016-12-20 | 2017-08-11 | 徐工消防安全装备有限公司 | Travelling control valve group, hydraulic closed running gear and aerial working platform vehicle |
| CN209586820U (en) * | 2018-12-07 | 2019-11-05 | 湖南十开科技有限公司 | Hydraulic moving control system and hydraulic travel system |
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| Publication number | Publication date |
|---|---|
| CN109340203B (en) | 2023-12-08 |
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