CN108591153A - A kind of multi-way valve - Google Patents
A kind of multi-way valve Download PDFInfo
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- CN108591153A CN108591153A CN201810479477.0A CN201810479477A CN108591153A CN 108591153 A CN108591153 A CN 108591153A CN 201810479477 A CN201810479477 A CN 201810479477A CN 108591153 A CN108591153 A CN 108591153A
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- spool
- circulation groove
- hydraulic fluid
- fluid port
- flow slot
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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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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B15/00—Elements, tools, or details of ploughs
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Multiple-Way Valves (AREA)
Abstract
A kind of multi-way valve according to the ... of the embodiment of the present invention, including：Valve body；First overflow valve, the second overflow valve and third overflow valve；First spool and the second spool；First piston and second piston；First left end cap, the first right end cap, the second left end cap and the second right end cap；First spring and second spring；Wherein, first spool can be switched between first position, the second position and the third place, when first spool is in the first position, second spool is in the 4th position, when first spool is in the second position, second spool is in the 5th position, and when first spool is in the third place, second spool is in the 6th position.Multi-way valve according to the ... of the embodiment of the present invention, 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.
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, be had
Whether there is or not opening and closing ridge, production efficiency is high, energy saving the advantages that.Hydraulic reversing plough is to control left and right two using the hydraulic system of tractor
Plough body alternately operating is covered, to achieve the purpose that without opening and closing ridge.Currently, generally using the controlling party of single cylinder for small-sized pivot plow
Formula, and the control mode of double oil cylinders is then used for large-scale pivot plow.Using double oil cylinders control hydraulic reversing plough include mainly
Lift cylinder and overturning oil cylinder, two oil cylinders by tractor HYDRAULIC CONTROL SYSTEM, when ploughing in running order, lift cylinder and
Overturning oil cylinder is all in maximum elongation state.When needing to overturn commutation, needs first to control lift cylinder shortening and lifts plough,
Controlling overturning oil cylinder retraction again after lifting in place drives plow beam to be flipped up, when plow beam is approximately rotated to upright position, then
Control overturning oil cylinder to stretch out, plow beam made to cross " dead point " position, cylinder thrust and and gravity under the action of continue to rotate, until
Overturning oil cylinder is fully extended, and it is fully extended then to control lift cylinder again.Currently, the overturning control for controlling double oil cylinders both at home and abroad
Valve processed is mainly that manual hydraulic pressure overturns control valve.Manual mode is directly to manipulate manual guiding valve control by operator on the tractor to promote oil
Cylinder oil circuit makes alternating plough first lift, and then manipulates manual guiding valve commutation control overturning oil cylinder again and begins turning, and ploughs in middle position
Stirring shift fork drives a rotary valve that oil path in oil cylinder is made to convert, and completes overturning commutation, and then the control of manually handle guiding valve is promoted again
Oil cylinder stretches out, and this overturning control valve operator on the tractor in headland turn will also grasp in addition to manipulation direction disk, lifting plough
Vertical overturning control valve, it is very nervous and busy for completing these types action in very short time, and labor intensity increases；It needs simultaneously
Using three spool control valves (for 1 guiding valve of lift cylinder control, 2, the guiding valve for overturning control), not only construction is multiple
It is miscellaneous, 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 overturning may be implemented
Plough the multi-way valve automatically controlled.
A kind of multi-way valve according to the ... of the embodiment of the present invention, including：
Valve body has the first valve opening, the second valve opening, the first hydraulic fluid port, the second hydraulic fluid port, third hydraulic fluid port, the 4th on the valve body
Hydraulic fluid port, the 5th hydraulic fluid port and the 6th hydraulic fluid port, first valve opening penetrate through the valve body in left-right direction, and second valve opening is located at institute
It states the upper surface of first valve opening and penetrates through the valve body in left-right direction, first valve opening includes arranged for interval successively from left to right
The first left control chamber, spring cavity, the first through-flow slot, the second through-flow slot, third is through-flow slot, four-way chute, the 5th through-flow slot and
First right control chamber, it is described first it is left control chamber aperture be less than described first it is right control chamber aperture, the first right control chamber with it is described
Third hydraulic fluid port is connected to, and second valve opening includes the spaced apart second left control chamber, the 6th through-flow slot, the 7th successively from left to right
Through-flow slot, the 8th through-flow slot, the 9th through-flow slot, the tenth through-flow slot and the second right control chamber, the second right control chamber and the described 6th
Hydraulic fluid port is connected to, and the first through-flow slot is connected to first hydraulic fluid port, and the through-flow slot of third is connected to second hydraulic fluid port, institute
It states four-way chute to be connected to the third hydraulic fluid port, the 4th hydraulic fluid port is connected to the 5th hydraulic fluid port, the 7th through-flow slot
It is connected to the 5th hydraulic fluid port, the 9th through-flow slot is connected to the 6th hydraulic fluid port, and the spring cavity passes through the first damping hole
It is connected to first hydraulic fluid port, the first through-flow slot is connected to by first flow with the 5th through-flow slot, and described first is logical
Chute is connected to by second flow channel with the 6th through-flow slot, and the second through-flow slot is through-flow by third flow channel and the described 8th
Slot is connected to, and the first right control chamber is connected to by the second damping hole with the third flow channel, and the 6th through-flow slot passes through the 4th
Runner is connected to the tenth through-flow slot, and the second left control chamber is connected to by third damping hole with the 4th runner, described
Second right control chamber is connected to by the 4th damping hole with the 7th through-flow slot；
First overflow valve, the second overflow valve and third overflow valve, first overflow valve are located on the valve body for normal
The connection of the 4th hydraulic fluid port and the 5th hydraulic fluid port is disconnected, second overflow valve is located on the valve body and opens institute for normal off
The connection of the first right control chamber and the third hydraulic fluid port is stated, the third overflow valve is located on the valve body opens described for normal off
The connection of two right control chambers and the 6th hydraulic fluid port；
First spool and the second spool, first spool can be movably located in first valve opening, and described
Two spools can be movably located in second valve opening；
First piston and second piston, the first piston can movably be located at the described first left control intracavitary and be located at
The left side of first spool, the second piston can movably be located at the described first right control intracavitary and be located at described first
The right end on the right side of spool, the second piston has pillar outstanding to the right；
First left end cap, the first right end cap, the second left end cap and the second right end cap, first left end cap are located at the valve
To close the left open end of first valve opening on body, there is the end being connected to the described first left control chamber on first left end cap
Lid chamber, the end cap chamber are connected to by the 5th runner with the through-flow slot of the third, and first right end cap is located on the valve body
To close the right open end of first valve opening, second left end cap is located on the valve body to close second valve opening
Left open end, second right end cap are located on the valve body to close the right open end of second valve opening；
First spring and second spring, first spring are located in the spring cavity for often pushing described first to the right
Spool simultaneously makes first spool push the second piston to the right so that the right end of the second piston is right against described first
End cap, the second spring are located between second left end cap and second spool for often pushing second valve to the right
Core so that the right end of second spool against second right end cap；
Wherein, first spool can be switched between first position, the second position and the third place, when first spool
When in the first position, second spool is in the 4th position, when first spool is in the second position,
Second spool is in the 5th position, and when first spool is in the third place, second spool is in the
Six positions.
Advantageously, when first spool is in the first position, the first piston is certainly left by outer force effect
It moves right and pushes first spool to move right together with first spring, so that first spool pushes second
For the right end of piston against first right end cap, first spool makes first circulation groove connect with second circulation groove
Logical, described first spool makes second circulation groove make the third stream with third circulation groove disconnection, first spool
Straight slot is connected to the 4th circulation groove, first spool makes the 4th circulation groove be disconnected with the 5th circulation groove, this
When, second spool is in the 4th position, and the second spring pushes to the right second spool so that described second
For the right end of spool against second right end cap, second spool makes the 6th circulation groove connect with the 7th circulation groove
Logical, described second spool makes the 7th circulation groove be disconnected with the 8th circulation groove, second spool makes the 8th stream
Straight slot is connected to the 9th circulation groove, second spool makes the 9th circulation groove be disconnected with the tenth circulation groove.
Advantageously, when first spool is in the second position, the second piston is certainly right by outer force effect
It is moved to the left and the elastic force right-to-left for pushing first spool to overcome first spring moves, so that first spool
It pushes the first piston right-to-left mobile and against first left end cap, first spool makes first circulation groove
Disconnected with second circulation groove, first spool makes second circulation groove be connected to the third circulation groove, described the
One spool makes the third circulation groove be disconnected with the 4th circulation groove, first spool make the 4th circulation groove with it is described
5th circulation groove is connected to, at this point, second spool is in the 5th position, the second spring pushes to the right described second
For spool so that the right end of second spool is against second right end cap, second spool makes the 6th circulation groove and institute
State the connection of the 7th circulation groove, second spool makes the 7th circulation groove be disconnected with the 8th circulation groove, second valve
Core makes that the 8th circulation groove is connected to the 9th circulation groove, second spool makes the 9th circulation groove and the described tenth
Circulation groove disconnects.
Advantageously, when first spool is in the third place, the second piston is certainly right by outer force effect
It is moved to the left and the elastic force right-to-left for pushing first spool to overcome first spring moves, so that first spool
It pushes the first piston right-to-left mobile and against first left end cap, first spool makes first circulation groove
Disconnected with second circulation groove, first spool makes second circulation groove be connected to the third circulation groove, described the
One spool makes the third circulation groove be disconnected with the 4th circulation groove, first spool make the 4th circulation groove with it is described
5th circulation groove is connected to, at this point, second spool is in the 6th position, second spool by outer force effect with gram
The elastic force right-to-left for taking the second spring is mobile so that the left end of second spool is against second left end cap, described
Second spool makes the 6th circulation groove make the 7th circulation groove and institute with the 7th circulation groove disconnection, second spool
State the connection of the 8th circulation groove, second spool makes the 8th circulation groove be disconnected with the 9th circulation groove, second valve
Core makes the 9th circulation groove be connected to the tenth circulation groove.
Advantageously, the aperture of the described first left control chamber is the half in the aperture of the described first right control chamber.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
Fig. 1 is the structural schematic diagram of multi-way valve according to an embodiment of the invention；
Fig. 2 is the sectional view of the line D-D in Fig. 1；
Fig. 3 is the sectional view of the line E-E in Fig. 1；
Fig. 4 is the hydraulic schematic diagram of multi-way valve according to an embodiment of the invention；
Fig. 5 is the hydraulic schematic diagram of the application scenarios of multi-way valve according to an embodiment of the invention；
Fig. 6 is a kind of position view of the multi-way valve according to an embodiment of the invention in commutation；
Fig. 7 is another location schematic diagram of the multi-way valve according to an embodiment of the invention in commutation.
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 attached
The embodiment of figure 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 according to the ... of the embodiment of the present invention.
As shown in Figures 1 to 7, a kind of multi-way valve according to the ... of the embodiment of the present invention, including：Valve body 1, the first overflow valve 8,
Two overflow valve 7b, third overflow valve 7a, the first spool 3a, the second spool 3b, first piston 2a, second piston 2b, the first left end
Cover 9a, the first right end cap 9b, the second left end cap 6a, the second right end cap 6b, the first spring 5a and second spring 5b.
Specifically, on valve body 1 have the first valve opening, the second valve opening, the first hydraulic fluid port T, the second hydraulic fluid port P, third hydraulic fluid port V1,
4th hydraulic fluid port C1, the 5th hydraulic fluid port C2 and the 6th hydraulic fluid port V2.
First valve opening penetrates through valve body 1 in left-right direction, second valve opening be located at the upper surface of described first valve opening and
Valve body 1 is penetrated through in left-right direction.
First valve opening includes the spaced apart first left control chamber 1a, spring cavity 1i, first through-flow successively from left to right
Slot 101, the second through-flow slot 102, third is through-flow slot 103, four-way chute 104, the 5th through-flow slot 105 and the first right control chamber 1b,
The aperture of first left control chamber 1a is less than the aperture of the first right control chamber 1b, and the first right control chamber 1b is connected to third hydraulic fluid port V1.Advantageously,
The aperture of first left control chamber 1a is the half in the aperture of the first right control chamber 1b.
Second valve opening includes the spaced apart second left control chamber 1c, the 6th through-flow slot the 106, the 7th successively from left to right
Through-flow slot 107, the 8th through-flow slot 108, the 9th through-flow slot 109, the tenth through-flow slot 110 and the second right control chamber 1d, the second right control chamber
1d is connected to the 6th hydraulic fluid port V2.
First through-flow slot 101 is connected to the first hydraulic fluid port T, and third is through-flow, and slot 103 is connected to the second hydraulic fluid port P, four-way chute
104 are connected to third hydraulic fluid port V1, and the 4th hydraulic fluid port C1 is connected to the 5th hydraulic fluid port C2, and the 7th through-flow slot 107 is connected to the 5th hydraulic fluid port C2,
9th through-flow slot 109 is connected to the 6th hydraulic fluid port V2.
Spring cavity 1i is connected to by the first damping hole 4b with the first hydraulic fluid port T, the first through-flow slot 101 by first flow 1g with
5th through-flow slot 105 is connected to, and the first through-flow slot 101 is connected to by second flow channel 1f with the 6th through-flow slot 106, the second through-flow slot
102 are connected to by third flow channel 1e with the 8th through-flow slot 108, and the first right control chamber 1b passes through the second damping hole 4a and third flow channel 1e
Connection, the 6th through-flow slot 106 are connected to by the 4th runner 1h with the tenth through-flow slot 110, and the second left control chamber 1c is damped by third
Hole 4d is connected to the 4th runner 1h, and the second right control chamber 1d is connected to by the 4th damping hole 4c with the 7th through-flow slot 107.
First overflow valve 8 is located at the connection for opening the 4th hydraulic fluid port C1 and the 5th hydraulic fluid port C2 on valve body 1 for normal off, the second overflow
Valve 7b is located at the connection for opening the first right control chamber 1b and third hydraulic fluid port V1 on valve body 1 for normal off, and third overflow valve 7a is located at valve body 1
The upper connection that the second right control chamber 1d and the 6th hydraulic fluid port V2 is opened for normal off.
First spool 3a can be movably located in first valve opening, and the second spool 3b can movably be located at institute
It states in the second valve opening.
First piston 2a can movably be located in the first left control chamber 1a and live positioned at the left side of the first spool 3a, second
Plug 2b can be movably located in the first right control chamber 1b and positioned at the right side of the first spool 3a, and the right end of second piston 2b has
Pillar outstanding to the right.It is understood that since the aperture of the first left control chamber 1a is less than the aperture of the first right control chamber 1b, then the
The diameter of one piston 2a is less than the diameter of second piston 2b.
First left end cap 9a is located on valve body 1 to close the left open end of first valve opening, is had on the first left end cap 9a
There are the end cap chamber 9a1, end cap chamber 9a1 that are connected to the first left control chamber 1a to be connected to by the through-flow slot of the 5th runner 1j and third 103,
One right end cap 9b is located on valve body 1 to close the right open end of first valve opening, and the second left end cap 6a is located on valve body 1 to seal
The left open end of second valve opening is closed, the second right end cap 6b is located on valve body 1 to close the right open end of second valve opening.
First spring 5a is located in spring cavity 1i for often pushing the first spool 3a to the right and the first spool 3a being made to push away to the right
Dynamic second piston 2b is so that the right end of second piston is located at the second left end cap 6a and the against the first right end cap 9a, second spring 5b
For often pushing the second spool 3b to the right so that the right end of the second spool 3b is against the second right end cap 6b between two spool 3b.
Wherein, the first spool 3a can be switched between first position, the second position and the third place, when the first spool 3a is in
When first position, the second spool 3b is in the 4th position, and when the first spool 3a is in the second position, the second spool 3b is in the
Five positions, when the first spool 3a is in the third place, the second spool 3b is in the 6th position.
More specifically, as shown in Figure 1 to Figure 3, when the first spool 3a is in the first position, first piston 2a by
It is moved from left to right to outer force effect and pushes the first spool 3a to move right together with the first spring 5a, so that the first spool 3a
The right end of second piston 2b is pushed to make the first circulation groove 101 and the second circulation groove 102 against the first right end cap 9b, the first spool 3a
Connection, the first spool 3a make the second circulation groove 102 be disconnected with third circulation groove 103, the first spool 3a make third circulation groove 103 with
The connection of 4th circulation groove 104, the first spool 3a make the 4th circulation groove 104 and the 5th circulation groove 105 disconnect.
At this point, the second spool 3b is in the 4th position, second spring 5b pushes to the right the second spool 3b so that second
The right end of spool 3b makes the 6th circulation groove 106 be connected to the 7th circulation groove 107 against the second right end cap 6b, the second spool 3b,
Two spool 3b make the 7th circulation groove 107 and the 8th circulation groove 108 disconnect, the second spool 3b makes the 8th circulation groove 108 and the 9th stream
The connection of straight slot 109, the second spool 3b make the 9th circulation groove 109 and the tenth circulation groove 110 disconnect.
As shown in fig. 6, when the first spool 3a is in the second position, second piston 2b is by outer force effect from dextrad
It moves left and the elastic force right-to-left for pushing the first spool 3a to overcome the first spring 5a moves, so that the first spool 3a pushes first
Piston 2a right-to-lefts are mobile and make the first circulation groove 101 and the second circulation groove 102 against the first left end cap 9a, the first spool 3a
Disconnect, the first spool 3a so that the second circulation groove 102 is connected to third circulation groove 103, the first spool 3a make third circulation groove 103 and
4th circulation groove 104 disconnects, the first spool 3a makes the 4th circulation groove 104 be connected to the 5th circulation groove 105.
At this point, the second spool 3b is in the 5th position, second spring 5b pushes to the right the second spool 3b so that second
The right end of spool 3b makes the 6th circulation groove 106 and the 7th circulation groove 107 connect against the second right end cap 6b, the second spool 3b
Logical, the second spool 3b makes the 7th circulation groove 107 and the disconnection of the 8th circulation groove 108, the second spool 3b make the 8th circulation groove 108 and the
The connection of nine circulation grooves 109, the second spool 3b make the 9th circulation groove 109 and the tenth circulation groove 110 disconnect.
As shown in fig. 7, when the first spool 3a is in the third place, second piston 2b is by outer force effect from dextrad
It moves left and the elastic force right-to-left for pushing the first spool 3a to overcome the first spring 5a moves, so that the first spool 3a pushes first
Piston 2a right-to-lefts are mobile and make the first circulation groove 101 and the second circulation groove 102 against the first left end cap 9a, the first spool 3a
Disconnect, the first spool 3a so that the second circulation groove 102 is connected to third circulation groove 103, the first spool 3a make third circulation groove 103 and
4th circulation groove 104 disconnects, the first spool 3a makes the 4th circulation groove 104 be connected to the 5th circulation groove 105, at this point, the second spool
3b is in the 6th position, the second spool 3b overcome the elastic force right-to-left of the second spring 5b to move by outer force effect with
The left end of the second spool 3b is set to keep the 6th circulation groove 106 and the 7th circulation groove 107 disconnected against the second left end cap 6a, the second spool 3b
It opens, the second spool 3b makes the 7th circulation groove 107 be connected to the 8th circulation groove 108, the second spool 3b makes the 8th circulation groove 108 and
Nine circulation grooves 109 disconnect, the second spool 3b makes the 9th circulation groove 109 be connected to the tenth circulation groove 110.
Below with reference to the accompanying drawings the operation principle of multi-way valve according to the ... of the embodiment of the present invention is introduced：
In order to describe conveniently, the hydraulic lock being connected on lift cylinder G1 and overturning cylinder G2 using hydraulic principle has been left out.
As shown in figure 5, in application, the work of the solenoid directional control valve 10 by the second hydraulic fluid port P and the first hydraulic fluid port T respectively and for controlling fuel feeding
Hydraulic fluid port A1 is connected with B1, the rod chamber of third hydraulic fluid port V1 connection lift cylinders G1, the rodless cavity of the 4th hydraulic fluid port C1 connection lift cylinders G1,
6th hydraulic fluid port V2 connections overturn the rod chamber of cylinder G2, and the 5th hydraulic fluid port C2 connections overturn the rodless cavity of cylinder G2.
When pivot plow is in running order to be overturn, solenoid directional control valve 10 is in power failure state, the second oil
It is unloading condition that mouth P, the first hydraulic fluid port T return to T1 mouthfuls by hydraulic fluid port A1, B1 of solenoid directional control valve 10, in the effect of the first spring 5a
Under, the first spool 3a is in position as shown in Figure 2, and the second hydraulic fluid port P passes through the through-flow slot 103 of third, four-way chute 104 at this time
It is connected with third hydraulic fluid port V1.Under the action of second spring 5b, the second spool 3b is in position as shown in Figure 3, and at this time
Eight through-flow slots 108 are connected by the 9th through-flow slot 109 with the 6th hydraulic fluid port V2.
When needing control pivot plow to be overturn, solenoid directional control valve 10 is made to charge, then the second hydraulic fluid port P and hydraulic pump 9
Outlet is connected, and the first hydraulic fluid port T is connected with fuel tank 11, and the hydraulic oil in the exit of hydraulic pump 9 is by the second hydraulic fluid port P successively through third
Through-flow slot 103, the 5th runner 1j enter end cap 9a1, the first left control chamber 1a, make the pressure in the first left control chamber 1a and hydraulic fluid port P phases
First piston 2a is pushed Deng, hydraulic oil, so that the first spool 3a, second piston 2b is constantly in extreme right position, third is through-flow
Slot 103 is communicated with four-way chute 104, to keep the fluid in the exit of hydraulic pump 9 through-flow through third successively by the second hydraulic fluid port P
The rod chamber for entering lift cylinder G1 after slot 103, four-way chute 104, third hydraulic fluid port V1, pushes lift cylinder G1 to retract；It is same with this
When lift cylinder G1 the fluid of rodless cavity be applied on the first overflow valve 8 through the 4th hydraulic fluid port C1, open the 4th hydraulic fluid port C1 to the 5th
The channel of hydraulic fluid port C2；Second spool 3b is constantly in extreme right position under the action of second spring 5b, and the 6th is through-flow at this time
Slot 106 is connected with the 7th through-flow slot 107, and the 8th through-flow slot 108 is connected with the 9th through-flow slot 109, to which hydraulic oil passes through the 5th
Hydraulic fluid port C2, the 7th through-flow slot 107, the 6th through-flow slot 106, second flow channel 1f, the first through-flow slot 101 and the first hydraulic fluid port T flow into oil
Case makes lift cylinder G1 bounce back.
After lift cylinder G1 is retracted into bottom, the pressure of third hydraulic fluid port V1 rises rapidly, when rising to the second overflow valve 7b's
When setting pressure, the second overflow valve 7b is opened, and fluid enters the first right control chamber 1b, makes its internal pressure and pressure phase at hydraulic fluid port P
Deng the first left control chamber 1a and pressure in the first right control chamber 1b are equal with pressure at the second hydraulic fluid port P at this time, but second piston 2b is horizontal
Sectional area be more than first piston 2a cross-sectional areas, at this time the first left sides spool 3a stress be less than the right stress, make its both sides by
The effect of the elastic force of the first spring 5a is overcome to move downward under force effect, and hydraulic oil is flowed into through the first damping 4b in spring cavity 1i
First hydraulic fluid port T, when the first spool 3a moves downward position as shown in Figure 6, the second overflow valve 7b has been switched off at this time, but the
The fluid of two hydraulic fluid port P enters first right side through the through-flow slot 103 of third, the second through-flow slot 102, third flow channel 1e, the second damping hole 4a
Control chamber 1b keeps its pressure and hydraulic fluid port P pressure equal always, and the first spool 3a is maintained at position as shown in Figure 6.Second hydraulic fluid port P's
Fluid successively through the through-flow slot 103 of third, the second through-flow slot 102, third flow channel 1e, the 8th through-flow slot 108, the 9th through-flow slot 109,
The rod chamber for entering overturning cylinder G2 after 6th hydraulic fluid port V2 pushes the G2 retractions of overturning cylinder that pivot plow is driven to start to be flipped up, and overturns cylinder
The fluid of G2 rodless cavities leads to through the 5th hydraulic fluid port C2, the 7th through-flow slot 107, the 6th through-flow slot 106, second flow channel 1f, first successively
Chute 101 and the first hydraulic fluid port T flow into fuel tank, and such overturning oil cylinder G2 persistently retracts.
When overturning oil cylinder G2, which is retracted into bottom namely pivot plow, reaches dead-centre position, on the pressure of the 6th hydraulic fluid port V2 is rapid
It rises, when rising to the setting pressure of third overflow valve 7a, third overflow valve 7a is opened, and fluid, which enters the second right control chamber 1d, to be pushed
Second spool 3b overcomes the active force of second spring 5b to move downward, and hydraulic oil passes through third damping hole in the second left control chamber 1c
4d, the 4th runner 1h, the 6th through-flow slot 106, second flow channel 1f, the first through-flow slot 101 are to flow into the first hydraulic fluid port T, when second
Spool 3b moves downward position shown in Fig. 7, and third overflow valve 7a has been switched off at this time, but the fluid of the second hydraulic fluid port P is through third
Through-flow slot 103, the second through-flow slot 102, third flow channel 1e, the 8th through-flow slot 108, the 7th through-flow slot 107, the 4th damping hole 4c into
Entering the second right control chamber 1d makes the second spool 3b keep position shown in Fig. 7；The fluid of second hydraulic fluid port P is successively through the through-flow slot of third
103, enter overturning after the second through-flow slot 102, third flow channel 1e, the 8th through-flow slot 108, the 7th through-flow slot 107, the 5th hydraulic fluid port C2
The rodless cavity of cylinder G2 pushes the G2 stretchings of overturning cylinder that pivot plow is driven to start to downwardly turn over, and the fluid of overturning cylinder G2 rod chambers passes through successively
6th hydraulic fluid port V2, the 9th through-flow slot 109, the tenth through-flow slot 110, the 4th runner 1h, the 6th through-flow slot 106, second flow channel 1f,
One through-flow slot 101 returns to the first hydraulic fluid port T, and such overturning oil cylinder G2, which persistently stretches out, drives pivot plow to downwardly turn over.
When overturning oil cylinder G2 is fully extended namely pivot plow completes entire switching process, the pressure of the 5th hydraulic fluid port C2 is fast
Speed rises, and when the pressure of the 5th hydraulic fluid port C2 rises to the setting pressure of the first overflow valve 8, the first overflow valve 8 is opened, the second oil
The fluid of mouthful P successively through the through-flow slot 103 of third, the second through-flow slot 102, third flow channel 1e, the 8th through-flow slot the 108, the 7th is through-flow
Lift cylinder G1 is pushed to stretch out decentralization pivot plow into the rodless cavity of lift cylinder G1 after slot 107, the 4th hydraulic fluid port C1, lift cylinder G1 has bar
The fluid of chamber is by hydraulic fluid port V1 successively after four-way chute 104, the 5th through-flow slot 105, first flow 1g, the first through-flow slot 101
The first hydraulic fluid port T is returned to, when lift cylinder G1 is fully extended in place, solenoid directional control valve 10 is powered off.
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 completed
Lift cylinder G1 retract promoted, overturning cylinder G2 retract is flipped up, overturn cylinder G2 stretch out downwardly turns over, lift cylinder G1 is stretched out and is transferred
Whole process, high degree of automation, without complicated electric control gear.
The advantages of multi-way valve 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 ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific 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 relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " 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 separately
There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition 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 exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One 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, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
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 (5)
1. a kind of multi-way valve, which is characterized in that including：
Valve body, have on the valve body the first valve opening, the second valve opening, the first hydraulic fluid port, the second hydraulic fluid port, third hydraulic fluid port, the 4th hydraulic fluid port,
5th hydraulic fluid port and the 6th hydraulic fluid port, first valve opening penetrate through the valve body in left-right direction, and second valve opening is located at described the
The upper surface of one valve opening and the valve body is penetrated through in left-right direction, first valve opening includes from left to right successively spaced apart the
One left control chamber, spring cavity, the first through-flow slot, the second through-flow slot, third is through-flow slot, four-way chute, the 5th through-flow slot and first
The aperture of right control chamber, the first left control chamber is less than the aperture of the described first right control chamber, the first right control chamber and the third
Hydraulic fluid port is connected to, and second valve opening includes the spaced apart second left control chamber, the 6th through-flow slot, the 7th through-flow successively from left to right
Slot, the 8th through-flow slot, the 9th through-flow slot, the tenth through-flow slot and the second right control chamber, the second right control chamber and the 6th hydraulic fluid port
Connection, the first through-flow slot is connected to first hydraulic fluid port, and the through-flow slot of third is connected to second hydraulic fluid port, and described the
Four-way chute is connected to the third hydraulic fluid port, and the 4th hydraulic fluid port is connected to the 5th hydraulic fluid port, the 7th through-flow slot and institute
The connection of the 5th hydraulic fluid port is stated, the 9th through-flow slot is connected to the 6th hydraulic fluid port, and the spring cavity passes through the first damping hole and institute
The connection of the first hydraulic fluid port is stated, the first through-flow slot is connected to by first flow with the 5th through-flow slot, the first through-flow slot
It is connected to the 6th through-flow slot by second flow channel, the second through-flow slot is connected by third flow channel and the described 8th through-flow slot
Logical, the first right control chamber is connected to by the second damping hole with the third flow channel, and the 6th through-flow slot passes through the 4th runner
It being connected to the tenth through-flow slot, the second left control chamber is connected to by third damping hole with the 4th runner, and described second
Right control chamber is connected to by the 4th damping hole with the 7th through-flow slot；
First overflow valve, the second overflow valve and third overflow valve, first overflow valve are located on the valve body and are opened for normal off
The connection of 4th hydraulic fluid port and the 5th hydraulic fluid port, second overflow valve is located on the valve body opens described for normal off
The connection of one right control chamber and the third hydraulic fluid port, the third overflow valve is located on the valve body opens second right side for normal off
Control the connection of chamber and the 6th hydraulic fluid port；
First spool and the second spool, first spool can be movably located in first valve opening, second valve
Core can be movably located in second valve opening；
First piston and second piston, the first piston can movably be located at the described first left control intracavitary and positioned at described
The left side of first spool, the second piston can movably be located at the described first right control intracavitary and be located at first spool
Right side, the right end of the second piston has pillar outstanding to the right；
First left end cap, the first right end cap, the second left end cap and the second right end cap, first left end cap are located on the valve body
To close the left open end of first valve opening, there is the end cap being connected to the described first left control chamber on first left end cap
Chamber, the end cap chamber are connected to by the 5th runner with the through-flow slot of the third, first right end cap be located on the valve body with
The right open end of first valve opening is closed, second left end cap is located on the valve body to close a left side for second valve opening
Open end, second right end cap are located on the valve body to close the right open end of second valve opening；
First spring and second spring, first spring are located in the spring cavity for often pushing first spool to the right
And so that first spool is pushed the second piston to the right so that the right end of the second piston is against first right end cap,
The second spring be located between second left end cap and second spool for often push to the right second spool with
Make the right end of second spool against second right end cap；
Wherein, first spool can be switched between first position, the second position and the third place, when first spool is in
When the first position, second spool is in the 4th position, described when first spool is in the second position
Second spool is in the 5th position, and when first spool is in the third place, second spool is in the 6th
It sets.
2. multi-way valve according to claim 1, which is characterized in that when first spool is in the first position,
The first piston is moved by outer force effect and pushes first spool to the right together with first spring from left to right
Mobile, so that first spool pushes the right end of second piston against first right end cap, first spool makes described
First circulation groove is connected to second circulation groove, first spool keeps second circulation groove disconnected with the third circulation groove
It opens, first spool makes the third circulation groove be connected to the 4th circulation groove, first spool makes the 4th stream
Straight slot is disconnected with the 5th circulation groove, at this point, second spool is in the 4th position, the second spring pushes away to the right
Second spool is moved so that the right end of second spool is against second right end cap, second spool makes the described 6th
Circulation groove is connected to the 7th circulation groove, second spool makes the 7th circulation groove be disconnected with the 8th circulation groove,
Second spool makes that the 8th circulation groove is connected to the 9th circulation groove, second spool makes the 9th circulation groove
It is disconnected with the tenth circulation groove.
3. multi-way valve according to claim 1, which is characterized in that when first spool is in the second position,
The second piston is mobile by outer force effect right-to-left and first spool is pushed to overcome the elastic force of first spring
Right-to-left moves, so that first spool pushes the first piston right-to-left mobile and against first left end
Lid, first spool make first circulation groove make the second with second circulation groove disconnection, first spool
Straight slot is connected to the third circulation groove, first spool makes the third circulation groove be disconnected with the 4th circulation groove, institute
Stating the first spool makes the 4th circulation groove be connected to the 5th circulation groove, at this point, second spool is in the described 5th
Position, the second spring pushes second spool to the right so that the right end of second spool is against second right end
Lid, second spool makes the 6th circulation groove be connected to the 7th circulation groove, second spool makes the 7th stream
Straight slot is disconnected with the 8th circulation groove, second spool makes the 8th circulation groove be connected to the 9th circulation groove, institute
Stating the second spool makes the 9th circulation groove be disconnected with the tenth circulation groove.
4. multi-way valve according to claim 1, which is characterized in that when first spool is in the third place,
The second piston is mobile by outer force effect right-to-left and first spool is pushed to overcome the elastic force of first spring
Right-to-left moves, so that first spool pushes the first piston right-to-left mobile and against first left end
Lid, first spool make first circulation groove make the second with second circulation groove disconnection, first spool
Straight slot is connected to the third circulation groove, first spool makes the third circulation groove be disconnected with the 4th circulation groove, institute
Stating the first spool makes the 4th circulation groove be connected to the 5th circulation groove, at this point, second spool is in the described 6th
Position, second spool are overcome the elastic force right-to-left movement of the second spring so that described second by outer force effect
For the left end of spool against second left end cap, second spool keeps the 6th circulation groove disconnected with the 7th circulation groove
It opens, second spool makes the 7th circulation groove be connected to the 8th circulation groove, second spool makes the 8th stream
Straight slot is disconnected with the 9th circulation groove, second spool makes the 9th circulation groove be connected to the tenth circulation groove.
5. multi-way valve according to claim 1, which is characterized in that the aperture of the first left control chamber is the described first right control
The half in the aperture of chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479477.0A CN108591153B (en) | 2018-05-18 | 2018-05-18 | Multi-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479477.0A CN108591153B (en) | 2018-05-18 | 2018-05-18 | Multi-way valve |
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| Publication Number | Publication Date |
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| CN108591153A true CN108591153A (en) | 2018-09-28 |
| CN108591153B CN108591153B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810479477.0A Active CN108591153B (en) | 2018-05-18 | 2018-05-18 | Multi-way valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307143A (en) * | 2019-06-21 | 2019-10-08 | 江苏恒立液压科技有限公司 | A kind of variable servo valve, power servo valve and variable pump |
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| FR2720123A1 (en) * | 1994-05-19 | 1995-11-24 | France Power Packer Sa | Automated hydraulic control for semi-rotating plough share |
| EP0758718A1 (en) * | 1995-08-11 | 1997-02-19 | Applied Power Inc. | Plough turning device |
| FR2814510A1 (en) * | 2000-09-27 | 2002-03-29 | Forhydro | Hydraulic control for reversible plough includes distributor controlling two pairs of outputs for chamber of two double-action pistons |
| EP1371855A1 (en) * | 2002-06-11 | 2003-12-17 | Actuant Corporation | Plough-turning device |
| CN2869408Y (en) * | 2005-06-27 | 2007-02-14 | 湖州生力液压有限公司 | Load feedback combination valve |
| 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 |
| CN106499688A (en) * | 2016-12-20 | 2017-03-15 | 湖南鸿辉科技有限公司 | A kind of garbage-compressing control integral multitandem valve and control method |
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2018
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3908985A1 (en) * | 1989-03-18 | 1990-09-27 | Integral Hydraulik Co | Hydraulic circuit for a mounted half-turn plough |
| FR2720123A1 (en) * | 1994-05-19 | 1995-11-24 | France Power Packer Sa | Automated hydraulic control for semi-rotating plough share |
| EP0758718A1 (en) * | 1995-08-11 | 1997-02-19 | Applied Power Inc. | Plough turning device |
| FR2814510A1 (en) * | 2000-09-27 | 2002-03-29 | Forhydro | Hydraulic control for reversible plough includes distributor controlling two pairs of outputs for chamber of two double-action pistons |
| EP1371855A1 (en) * | 2002-06-11 | 2003-12-17 | Actuant Corporation | Plough-turning device |
| CN2869408Y (en) * | 2005-06-27 | 2007-02-14 | 湖州生力液压有限公司 | Load feedback combination valve |
| 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 |
| CN106499688A (en) * | 2016-12-20 | 2017-03-15 | 湖南鸿辉科技有限公司 | A kind of garbage-compressing control integral multitandem valve and control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307143A (en) * | 2019-06-21 | 2019-10-08 | 江苏恒立液压科技有限公司 | A kind of variable servo valve, power servo valve and variable pump |
| CN110307143B (en) * | 2019-06-21 | 2020-09-22 | 江苏恒立液压科技有限公司 | Variable servo valve, power servo valve and variable pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108591153B (en) | 2020-04-14 |
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Effective date of registration: 20200319 Address after: 318000 No.16, Jintang North Road, East New District, Wenling City, Taizhou City, Zhejiang Province Applicant after: JINDUN ENGINEERING MACHINERY 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 ZHENGE HYDRAULIC TECHNOLOGY Co.,Ltd. |
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