CN108547814A - A kind of Multi-way valve device - Google Patents
A kind of Multi-way valve device Download PDFInfo
- Publication number
- CN108547814A CN108547814A CN201810480002.3A CN201810480002A CN108547814A CN 108547814 A CN108547814 A CN 108547814A CN 201810480002 A CN201810480002 A CN 201810480002A CN 108547814 A CN108547814 A CN 108547814A
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- China
- Prior art keywords
- hydraulic fluid
- port
- fluid port
- valve
- reversal valve
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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
- 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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- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
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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
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B2013/0413—Valve members; Fluid interconnections therefor with four or more positions
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention proposes a kind of Multi-way valve device, including：Valve body, valve body have the first to the 6th hydraulic fluid port；There is first to fourth actuator port, the first actuator port to be connected with the first hydraulic fluid port for first reversal valve, the first reversal valve, and the second actuator port is connected with the second hydraulic fluid port, and third actuator port is connected with third hydraulic fluid port；There is the 5th to the 8th actuator port, the 5th actuator port to be connected with the 4th actuator port for second reversal valve, the second reversal valve, and the 6th actuator port is connected with the second hydraulic fluid port, and the 7th actuator port is connected with the 5th hydraulic fluid port, and the 8th actuator port is connected with the 6th hydraulic fluid port；First overflow valve, the first end of the first overflow valve are connected with the 4th hydraulic fluid port, and the second end of the first overflow valve is connected with the 6th hydraulic fluid port, and the first overflow valve opens the connection of the 4th hydraulic fluid port and the 6th hydraulic fluid port for normal off.Multi-way valve device according to the ... of the embodiment of the present invention, simple in structure, manufacturing cost is low, and automatically controlling for twin-tub pivot plow may be implemented.
Description
Technical field
The present invention relates to a kind of valve, a kind of especially Multi-way valve device.
Background technology
In recent years, China's most area has started to promote and apply hydraulic reversing plough.It is carried out ploughing operation with pivot plow,
Have many advantages, such as high, energy saving without opening and closing ridge, production efficiency.Hydraulic reversing plough is to control a left side using the hydraulic system of tractor
Right two sets of plough body alternately operatings, to achieve the purpose that without opening and closing ridge.Currently, generally using single cylinder for small-sized pivot plow
Control mode, and the control mode of double oil cylinders is then used for large-scale pivot plow.The hydraulic reversing plough master controlled using double oil cylinders
To include lift cylinder and overturning oil cylinder, two oil cylinders when ploughing in running order, are carried by the HYDRAULIC CONTROL SYSTEM of tractor
Oil-lifting jar and overturning oil cylinder are all in maximum elongation state.When needing to overturn commutation, need first to control lift cylinder shortening
Plough is lifted, overturning oil cylinder retraction is controlled again after lifting in place and plow beam is driven to be flipped up, when plow beam is approximately rotated to vertically
When position, then control overturning oil cylinder stretching, plow beam made to cross " dead point " position, cylinder thrust and and under the action of gravity after
Then it is fully extended to control lift cylinder until overturning oil cylinder is fully extended again for continuous rotation.Currently, double for controlling both at home and abroad
The overturning control valve of oil cylinder is mainly that manual hydraulic pressure overturns control valve.Manual mode is directly to be manipulated by operator on the tractor manually
Guiding valve control lift cylinder oil circuit makes alternating plough first lift, and then manipulates manual guiding valve commutation control overturning oil cylinder again and starts to turn over
Turn, plough stirs shift fork in middle position and drives a rotary valve that oil path in oil cylinder is made to convert, and completes overturning commutation, then again manually
Manipulate guiding valve control lift cylinder stretch out, this overturning control valve in headland turn operator on the tractor remove manipulation direction disk,
Except lifting plough, also to manipulate overturning control valve, very short time to complete these types action be it is very nervous and busy,
Labor intensity increases；Three spool control valves need to be used (for 1 guiding valve of lift cylinder control, for overturning control simultaneously
2, guiding valve) not only construction is complicated, cost is also high.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of simple in structure, manufacturing cost is low, and twin-tub may be implemented and turn over
Turn the Multi-way valve device that plough automatically controls.
A kind of Multi-way valve device according to the ... of the embodiment of the present invention, including：
Valve body, the valve body have the first hydraulic fluid port, the second hydraulic fluid port, third hydraulic fluid port, the 4th hydraulic fluid port, the 5th hydraulic fluid port and the 6th
Hydraulic fluid port；
First reversal valve, first reversal valve have the first actuator port, the second actuator port, third actuator port
With the 4th actuator port, first actuator port is connected with first hydraulic fluid port, second actuator port and described second
Hydraulic fluid port is connected, and the third actuator port is connected with the third hydraulic fluid port, and first reversal valve is in first position and second
It can be switched between setting；
Second reversal valve, second reversal valve have the 5th actuator port, the 6th actuator port, the 7th actuator port
With the 8th actuator port, the 5th actuator port is connected with the 4th actuator port, the 6th actuator port with it is described
Second hydraulic fluid port is connected, and the 7th actuator port is connected with the 5th hydraulic fluid port, the 8th actuator port and the 6th oil
Mouth is connected, and second reversal valve can be switched between the third place and the 4th position,
First overflow valve, the first end of first overflow valve are connected with the 4th hydraulic fluid port, first overflow valve
Second end is connected with the 6th hydraulic fluid port, and first overflow valve opens the 4th hydraulic fluid port and the 6th hydraulic fluid port for normal off
Connection.
Advantageously, when first reversal valve is in the first position, first actuator port and the third
Actuator port is connected and second actuator port is connected with the 4th actuator port；When first reversal valve is in institute
When stating the second position, first actuator port connected with the 4th actuator port and second actuator port with it is described
Third actuator port is connected；When second reversal valve is in the third place, the 5th actuator port and described the
Seven actuator ports are connected and the 6th actuator port is connected with the 8th actuator port；When second reversal valve is in
When four position, the 5th actuator port and the 8th actuator port connection and the 6th actuator port and institute
State the connection of the 7th actuator port.
Advantageously, first reversal valve further includes the first spring, and first spring is for often pushing described first to change
To the spool of valve so that first reversal valve is in the first position, first reversal valve further includes：
The valve opening of first control chamber, first control chamber and first reversal valve is coaxial and is located at first bullet
The homonymy of spring, first control chamber are connected with first hydraulic fluid port；
First piston, the first piston are located at the valve for pushing first reversal valve in first control chamber
Core；
The valve opening of second control chamber, second control chamber and first reversal valve is coaxial and is located at first bullet
The offside of spring, second control chamber is connected by the second overflow valve with the third hydraulic fluid port and second control chamber passes through
First damping hole is connected with the 4th actuator port, second overflow valve for normal off open the third hydraulic fluid port with it is described
The connection of second control chamber；
Second piston, the second piston are located at the valve for pushing first reversal valve in second control chamber
Core；
Wherein, the cross section of first control chamber is less than the cross section of second control chamber.
Advantageously, second reversal valve further includes second spring, and the second spring is for often pushing described second to change
To the spool of valve so that second reversal valve is in the third place, second reversal valve further includes and described second
The valve opening of reversal valve is coaxial and is located at the third control chamber of the second spring offside, and the third control chamber is overflow by third
Stream valve is connected with the 5th hydraulic fluid port and the third control chamber is connected by the second damping hole with the 8th actuator port,
The third overflow valve opens the connection of the 5th hydraulic fluid port and the third control chamber for normal off.
Advantageously, when first reversal valve is in the first position and second reversal valve is in the third
When position, first hydraulic fluid port is connected with the third hydraulic fluid port and the 4th hydraulic fluid port is connected with second hydraulic fluid port.
Advantageously, when first reversal valve is in the second position and second reversal valve is in the third
When position, first hydraulic fluid port is connected with the 5th hydraulic fluid port and the 5th hydraulic fluid port is connected with second hydraulic fluid port.
Advantageously, when first reversal valve is in the second position and second reversal valve is in the described 4th
When position, first hydraulic fluid port is connected with the 6th hydraulic fluid port and the 5th hydraulic fluid port is connected with second hydraulic fluid port.
Advantageously, when first reversal valve is in the second position and second reversal valve is in the third
When position, first hydraulic fluid port is connected with the 4th hydraulic fluid port and the third hydraulic fluid port is connected with second hydraulic fluid port.
The additional aspect and advantage of the present invention will be set forth in part in the description, partly will from the following description
Become apparent, or practice through the invention is recognized.
Description of the drawings
Fig. 1 is the schematic diagram of Multi-way valve device according to an embodiment of the invention；
Fig. 2 is the application scenarios schematic diagram of Multi-way valve device according to an embodiment of the invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail a kind of Multi-way valve device according to the ... of the embodiment of the present invention.
As depicted in figs. 1 and 2, a kind of Multi-way valve device according to the ... of the embodiment of the present invention, including：Valve body 100, first changes
To valve 200, the second reversal valve 300, the first overflow valve 400.
Specifically, valve body 100 has the first hydraulic fluid port P, the second hydraulic fluid port T, third hydraulic fluid port V1, the 4th hydraulic fluid port C1, the 5th oil
Mouth V2 and the 6th hydraulic fluid port C2.
First reversal valve 200 has the first actuator port P1, the second actuator port T1, third actuator port A1 and the 4th
Actuator port B1, the first actuator port P1 are connected with the first hydraulic fluid port P, and the second actuator port T1 and the second hydraulic fluid port T-phase connect, third
Actuator port A1 is connected with third hydraulic fluid port V1, and the first reversal valve 200 can be switched between first position and the second position.
Second reversal valve 300 has the 5th actuator port P2, the 6th actuator port T2, the 7th actuator port A2 and the 8th
Actuator port B2, the 5th actuator port P2 are connected with the 4th actuator port B1, and the 6th actuator port T2 and the second hydraulic fluid port T-phase connect,
7th actuator port A2 is connected with the 5th hydraulic fluid port V2, and the 8th actuator port B2 is connected with the 6th hydraulic fluid port C2, the second reversal valve 300
It can be switched between the third place and the 4th position.
The first end of first overflow valve 400 is connected with the 4th hydraulic fluid port C1, the second end of the first overflow valve 400 and the 6th oil
Mouth C2 is connected, and the first overflow valve 400 opens the connection of the 4th hydraulic fluid port C1 and the 6th hydraulic fluid port C2 for normal off.
Further, when the first reversal valve 200 is in the first position, the first actuator port P1 works with third
Hydraulic fluid port A1 is connected and the second actuator port T1 and the 4th actuator port B1 are connected；When the first reversal valve 200 is in the second
When setting, the first actuator port P1 and the 4th actuator port B1 connections and the second actuator port T1 and third actuator port A1 are connected；
When the second reversal valve 300 is in the third place, the 5th actuator port P2 and the 7th actuator port A2 is connected and the 6th work
Make hydraulic fluid port T2 and the 8th actuator port B2 is connected；When the second reversal valve 300 is in four position, the 5th actuator port
P2 and the 8th actuator port B2 is connected and the 6th actuator port T2 and the 7th actuator port A2 are connected.
Further, it is in described the when the first reversal valve 200 is in the first position and the second reversal valve 300
When three positions, the first hydraulic fluid port P is connected with third hydraulic fluid port V1 and the 4th hydraulic fluid port C1 and the second hydraulic fluid port T are connected.When the first reversal valve
200 in the second position and the second reversal valve 300 when being in the third place, and the first hydraulic fluid port P and the 5th hydraulic fluid port V2 connects
Logical and the 5th hydraulic fluid port V2 and the second hydraulic fluid port T are connected.When the first reversal valve 200 is in the second position and the second reversal valve 300
When in four position, the first hydraulic fluid port P and the 6th hydraulic fluid port C2 connections and the 5th hydraulic fluid port V2 and the second hydraulic fluid port T are connected.When
One reversal valve 200 is in the second position and when the second reversal valve 300 is in the third place, the first hydraulic fluid port P and
Four hydraulic fluid port C1 are connected and third hydraulic fluid port V1 and the second hydraulic fluid port T are connected.
According to an example of the present invention, the first reversal valve 200 further includes the first spring 201, and the first spring 201 is used for
Often push the spool of the first reversal valve 200 so that the first reversal valve 200 is in the first position.First reversal valve 200 also wraps
It includes：First control chamber 202, first piston 203, the second control chamber 204, second piston 207.
The valve opening of first control chamber 202 and the first reversal valve 200 is coaxial and is located at the homonymy of the first spring 201, the first control
Chamber 202 processed is connected with the first hydraulic fluid port P.
First piston 203 is located at the spool for pushing the first reversal valve 200 in the first control chamber 202.
The valve opening of second control chamber 204 and the first reversal valve 200 is coaxial and is located at the offside of the first spring 201, the second control
Chamber 204 processed is connected by the second overflow valve 205 with third hydraulic fluid port C1 and the second control chamber 204 passes through the first damping hole 206 and
Four actuator port B1 are connected, and the second overflow valve 205 opens the connection of third hydraulic fluid port C1 and the second control chamber 204 for normal off.
Second piston 207 is located at the spool for pushing the first reversal valve 200 in the second control chamber 204.
Wherein, the cross section of the first control chamber 202 is less than the cross section of the second control chamber 204.In other words, first piston
203 cross section is less than the cross section of second piston 207.
A specific example according to the present invention, the second reversal valve 300 further include second spring 301, second spring 301
Spool for often pushing the second reversal valve 300 is so that the second reversal valve 300 is in the third place.Second reversal valve 300
Further include third control chamber 302 coaxial with the valve opening of the second reversal valve 300 and positioned at 301 offside of second spring, third control
Chamber 302 is connected by third overflow valve 303 with the 5th hydraulic fluid port V2 and third control chamber 302 passes through the second damping hole 304 and the 8th
Actuator port B2 is connected, and third overflow valve 303 opens the connection of the 5th hydraulic fluid port V2 and third control chamber 302 for normal off.
It following is a brief introduction of a kind of operation principle of Multi-way valve device according to the ... of the embodiment of the present invention.
As shown in Fig. 2, in application, the rod chamber of third hydraulic fluid port V1 connection lift levers G1, the 4th hydraulic fluid port C1 connection lift levers
The rodless cavity of G1, the 5th hydraulic fluid port V2 connections overturn the rod chamber of cylinder, the rodless cavity of the 6th hydraulic fluid port connection overturning cylinder, the first hydraulic fluid port P
It is connected with the actuator port A3 of solenoid directional control valve 10, the second hydraulic fluid port T is connected with the actuator port B3 of solenoid directional control valve 10, hydraulic pressure
The output end of pump 11 is connected with the actuator port P3 of solenoid directional control valve 10, the input terminal and solenoid directional control valve 10 of hydraulic pump 11
Actuator port T3 be connected with fuel tank 12.
When 10 dead electricity of solenoid directional control valve, actuator port A3 and actuator port B3 are connected with actuator port T3；Electromagnetism changes
When obtaining electric to valve 10, actuator port P3 is connected with actuator port A3, and actuator port T3 is connected with actuator port B3.
In the initial state, 10 dead electricity of solenoid directional control valve, hydraulic pump 11 are closed, the first reversal valve 200 is in described first
Position, the second reversal valve 300 are in the third place, and lift lever G1 and overturning cylinder G2 are in stretching state.
So that solenoid directional control valve 10 is obtained electric and open hydraulic pump 11, the hydraulic oil that hydraulic pump 11 exports is through actuator port P3, work
Make hydraulic fluid port A3 and reach the first hydraulic fluid port P, fraction fluid enters the first control chamber 202 and pushes first piston 203 so that first piston
203 push the spool of the first reversal valve 200, and the first reversal valve 200 is made to be maintained at the first position.Most of fluid is through
One actuator port P1, third actuator port A1 and third hydraulic fluid port V1 make lift lever be returned into the rod chamber of lift lever G1
Contracting.Fluid in the rodless cavity of lift lever G1 forces the first overflow valve 400 to be opened to be connected to the 4th oil by the 4th hydraulic fluid port C1
Mouthful C1 and the 6th hydraulic fluid port C2, fluid through the 8th actuator port B2, the 6th actuator port T3, the second hydraulic fluid port T, actuator port B3 and
Actuator port T3 returns to fuel tank 12.
After lift lever G1 is retracted into bottom, the pressure of third hydraulic fluid port V1 rises rapidly, and the second overflow valve 205 is forced to be opened,
Fluid enters the second control chamber 204 until 204 internal pressure of the second control chamber is equal with pressure at the first hydraulic fluid port P.At this point, the
Pressure in one control chamber 202 is equal with pressure at the first hydraulic fluid port P with the pressure in the second control chamber 204, due to the second work
The cross section of plug 207 is more than the cross section of first piston 203, then the first reversal valve 200 is big by the thrust of second piston 207
In the thrust of first piston 203, it is possible thereby to overcome the elastic force of the first spring 201 that the first reversal valve 200 is made to be in described second
(the second overflow valve 205 has been switched off at this time, and fluid can be through the first hydraulic fluid port P, the first actuator port P1, the 4th work for position
Hydraulic fluid port B1, the first damping hole 206 enter the second control chamber 204, and the first reversal valve 200 is made to keep the second position).Fluid
Through the first hydraulic fluid port P, the first actuator port P1, the 4th actuator port B1, the 5th actuator port P2, the 7th actuator port A2, the 5th
Hydraulic fluid port V2 enters the rod chamber of overturning cylinder G2, and overturning cylinder G2 is made to bounce back.The fluid of the rodless cavity of cylinder G2 is overturn through the 6th hydraulic fluid port
C2, the 8th actuator port B2, the 6th actuator port T2, the second hydraulic fluid port T, actuator port B3 and actuator port T3 return to fuel tank 12.
After overturning cylinder G2 is retracted into bottom, the pressure of the 5th hydraulic fluid port V2 rises rapidly, and third overflow valve 303 is forced to be opened,
Fluid enters third control chamber 302 and overcomes the elastic force of second spring 301 that the second reversal valve 300 is made to be in the 4th position (this
When third overflow valve 303 have been switched off, the fluid from the first hydraulic fluid port P through the first actuator port P1, the 4th actuator port B1,
5th actuator port P2, the 8th actuator port B3, the second damping hole 304 enter third control chamber 302, make the second reversal valve 300
Keep the 4th position).Fluid is through the first hydraulic fluid port P, the first actuator port P1, the 4th actuator port B1, the 5th actuator port
P2, the 8th actuator port B3, the 6th hydraulic fluid port C2, the rodless cavity into overturning cylinder G2 push overturning cylinder G2 to stretch out drive pivot plow
Start to downwardly turn over；The fluid in the rod chamber of cylinder G2 is overturn through the 5th hydraulic fluid port V2, the 7th actuator port A2, the 6th working oil
Mouth T2, the second hydraulic fluid port T, actuator port B3 and actuator port T3 return to fuel tank 12.
After overturning cylinder G2 is fully extended namely pivot plow completes entire switching process, and the pressure of the 6th hydraulic fluid port C2 is fast
Speed rise, force the first overflow valve 400 open, fluid through the first hydraulic fluid port P, the first actuator port P1, the 4th actuator port B1,
5th actuator port P2, the 8th actuator port B3, the first overflow valve 400, the 4th hydraulic fluid port C1 enter the rodless cavity of lift lever G1,
Lift lever G1 is pushed to stretch out decentralization pivot plow, the fluid of the rod chamber of lift lever G1 is through third hydraulic fluid port V1, third actuator port
A1, the second actuator port T1, the second hydraulic fluid port T, actuator port B3 and actuator port T3 return to fuel tank 12.
After lift lever G1 is fully extended, makes 10 dead electricity of solenoid directional control valve and close hydraulic pump 11, the first reversal valve 200
The first position is returned under the action of the first spring 201, the second reversal valve 300 returns under the action of second spring 301
The third place is arrived again.
Through above description, it is only necessary to which it is electrically operated that driver carries out on/off to solenoid directional control valve 10, you can automatic sequence is complete
Retract at lift cylinder G1 promoted, the G2 retractions of overturning cylinder are flipped up, overturns cylinder G2 stretchings downwardly turns over, under lift cylinder G1 stretchings
The whole process put, high degree of automation, without complicated electric control gear.
The advantages of Multi-way valve device according to the ... of the embodiment of the present invention, has：
(1) simple in structure, integrated level is high, easy for installation, at low cost；
(2) only need fuel feeding can automatic sequence realize promoted, overturning control, be not necessarily to driver's manually handle, automatically
Change degree is high.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed
Or implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation "
Equal terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be machine
Tool connects, and can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two members
The interaction relationship of connection or two elements inside part.It for the ordinary skill in the art, can be according to tool
Body situation understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or only table
Show that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
In conjunction with and combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are within the scope of the invention to above-mentioned implementation
Example is changed, changes, replacing and modification, each falls within protection scope of the present invention.
Claims (8)
1. a kind of Multi-way valve device, which is characterized in that including：
Valve body, the valve body have the first hydraulic fluid port, the second hydraulic fluid port, third hydraulic fluid port, the 4th hydraulic fluid port, the 5th hydraulic fluid port and the 6th hydraulic fluid port；
First reversal valve, first reversal valve have the first actuator port, the second actuator port, third actuator port and the 4th
Actuator port, first actuator port are connected with first hydraulic fluid port, second actuator port and the second hydraulic fluid port phase
Even, the third actuator port is connected with the third hydraulic fluid port, and first reversal valve can between first position and the second position
Switching；
Second reversal valve, second reversal valve have the 5th actuator port, the 6th actuator port, the 7th actuator port and the 8th
Actuator port, the 5th actuator port are connected with the 4th actuator port, the 6th actuator port and second oil
Mouth is connected, and the 7th actuator port is connected with the 5th hydraulic fluid port, and the 8th actuator port is connected with the 6th hydraulic fluid port,
Second reversal valve can be switched between the third place and the 4th position,
First overflow valve, the first end of first overflow valve are connected with the 4th hydraulic fluid port, and the second of first overflow valve
End is connected with the 6th hydraulic fluid port, and first overflow valve opens the company of the 4th hydraulic fluid port and the 6th hydraulic fluid port for normal off
It connects.
2. Multi-way valve device according to claim 1, which is characterized in that when first reversal valve is in described first
When setting, first actuator port and third actuator port connection and second actuator port and the 4th working oil
Mouth is connected；When first reversal valve is in the second position, first actuator port and the 4th actuator port
It connects and second actuator port is connected with the third actuator port；When second reversal valve is in the third place
When, the 5th actuator port and the 7th actuator port are connected and the 6th actuator port and the 8th actuator port
It connects；When second reversal valve is in four position, the 5th actuator port connects with the 8th actuator port
Logical and described 6th actuator port is connected with the 7th actuator port.
3. Multi-way valve device according to claim 2, which is characterized in that first reversal valve further includes the first spring,
First spring is used to often push the spool of first reversal valve so that first reversal valve is in the first position,
First reversal valve further includes：
The valve opening of first control chamber, first control chamber and first reversal valve is coaxial and is located at the same of first spring
Side, first control chamber are connected with first hydraulic fluid port；
First piston, the first piston are located at the spool for pushing first reversal valve in first control chamber；
The valve opening of second control chamber, second control chamber and first reversal valve is coaxial and is located at pair of first spring
Side, second control chamber is connected by the second overflow valve with the third hydraulic fluid port and second control chamber passes through the first damping
Hole is connected with the 4th actuator port, and second overflow valve opens the third hydraulic fluid port and second control chamber for normal off
Connection；
Second piston, the second piston are located at the spool for pushing first reversal valve in second control chamber；
Wherein, the cross section of first control chamber is less than the cross section of second control chamber.
4. Multi-way valve device according to claim 2, which is characterized in that second reversal valve further includes second spring,
The second spring is used to often push the spool of second reversal valve so that second reversal valve is in the third place,
Second reversal valve further includes third control coaxial with the valve opening of second reversal valve and positioned at the second spring offside
Chamber processed, the third control chamber is connected by third overflow valve with the 5th hydraulic fluid port and the third control chamber passes through the second resistance
Buddhist nun hole is connected with the 8th actuator port, and the third overflow valve is opened the 5th hydraulic fluid port for normal off and controlled with the third
The connection of chamber.
5. Multi-way valve device according to claim 2, which is characterized in that when first reversal valve is in described first
It sets and when second reversal valve is in the third place, first hydraulic fluid port is connected and the described 4th with the third hydraulic fluid port
Hydraulic fluid port is connected with second hydraulic fluid port.
6. Multi-way valve device according to claim 2, which is characterized in that when first reversal valve is in the second
It sets and when second reversal valve is in the third place, first hydraulic fluid port is connected and the described 5th with the 5th hydraulic fluid port
Hydraulic fluid port is connected with second hydraulic fluid port.
7. the Multi-way valve device according to claim, which is characterized in that when first reversal valve is in the second
It sets and when second reversal valve is in four position, first hydraulic fluid port is connected and the described 5th with the 6th hydraulic fluid port
Hydraulic fluid port is connected with second hydraulic fluid port.
8. Multi-way valve device according to claim 2, which is characterized in that when first reversal valve is in the second
It sets and when second reversal valve is in the third place, first hydraulic fluid port is connected with the 4th hydraulic fluid port and the third
Hydraulic fluid port is connected with second hydraulic fluid port.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480002.3A CN108547814B (en) | 2018-05-18 | 2018-05-18 | Multi-way valve device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480002.3A CN108547814B (en) | 2018-05-18 | 2018-05-18 | Multi-way valve device |
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| CN108547814A true CN108547814A (en) | 2018-09-18 |
| CN108547814B CN108547814B (en) | 2019-12-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202381432U (en) * | 2011-12-22 | 2012-08-15 | 徐州重型机械有限公司 | Leveling overload valve and aerial work platform |
| CN103133446B (en) * | 2013-01-30 | 2015-07-08 | 浙江海宏液压科技股份有限公司 | Valve rod of multi-path valve and multi-path valve with valve rod |
| EP1757179B1 (en) * | 2005-08-25 | 2015-10-21 | Weber-Hydraulik GmbH | Hydraulic control for a turn over plow |
| CN204985138U (en) * | 2015-09-25 | 2016-01-20 | 湖州生力液压有限公司 | Take sequence action valve of load feedback |
-
2018
- 2018-05-18 CN CN201810480002.3A patent/CN108547814B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1757179B1 (en) * | 2005-08-25 | 2015-10-21 | Weber-Hydraulik GmbH | Hydraulic control for a turn over plow |
| CN202381432U (en) * | 2011-12-22 | 2012-08-15 | 徐州重型机械有限公司 | Leveling overload valve and aerial work platform |
| CN103133446B (en) * | 2013-01-30 | 2015-07-08 | 浙江海宏液压科技股份有限公司 | Valve rod of multi-path valve and multi-path valve with valve rod |
| CN204985138U (en) * | 2015-09-25 | 2016-01-20 | 湖州生力液压有限公司 | Take sequence action valve of load feedback |
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| CN108547814B (en) | 2019-12-24 |
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Effective date of registration: 20191203 Address after: 211200 Baima Town, Lishui District, Jiangsu, Nanjing Applicant after: Jiangsu Nanjing Baima modern agricultural high tech Industrial Park Co., Ltd Address before: 315000 188 Jinghua Road, Ningbo high tech Zone, Zhejiang (1493 tower, 041 block B block, modern building, Ningbo harbour). Applicant before: Ningbo Zhen Ge Hydraulic Technology Co., Ltd. |
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Address after: 111 Baima Avenue, Baima Town, Lishui District, Nanjing City, Jiangsu Province, 211200 Patentee after: Jiangsu Nanjing national agricultural hi tech Industry Demonstration Zone Development Group Co.,Ltd. Address before: 211200 Baima Town, Lishui District, Nanjing City, Jiangsu Province Patentee before: Jiangsu Nanjing Baima modern agricultural high tech Industrial Park Co.,Ltd. |
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