CN106015141B - Leading controller suitable for pilot valve - Google Patents
Leading controller suitable for pilot valve Download PDFInfo
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- CN106015141B CN106015141B CN201610545506.XA CN201610545506A CN106015141B CN 106015141 B CN106015141 B CN 106015141B CN 201610545506 A CN201610545506 A CN 201610545506A CN 106015141 B CN106015141 B CN 106015141B
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- liquid chamber
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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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of leading controller suitable for pilot valve, including guide valve blocks, include the drive device for valve pocket component, the moveable valve rod for being arranged in valve pocket component and guide's liquid chamber opening and closing that fluid is provided in the guide's counter balance pocket being used for into the pilot valve set in component being covered for control valve and the driving force for moving it and making guide's liquid chamber to close valve rod offer being arranged in the guide valve blocks.The leading controller suitable for pilot valve of the present invention, by setting guide's liquid chamber and the cooperation of guide's counter balance pocket in valve pocket component, realize that pilot valve quickly opens and closes, control is more convenient；Manually, more conveniently and flexibly, Electromagnetic Control mode can realize the remote control of pilot valve opening and closing to electromagnetic double-mode control mode, improve safety coefficient.
Description
Technical field
The invention belongs to hydraulic valve technical field, and specifically, the present invention relates to a kind of guide's control suitable for pilot valve
Device processed.
Background technology
In hydraulicdriven machinery industry, in engineering machinery, mining machinery, agricultural machinery, especially mine hydraulic pressure
Switch stopper of the support as the main feed flow of single device, more using Plane stop valve as total cut-off in hydraulic system
Valve.This Plane stop valve is typically all to use Direct Action Type valve core structure, that is, is usually to be directly connected to rotary handle and valve element
Together.So, by rotating threaded handle, and valve element is risen or is dropped with handle opposite valve seat, beaten so as to realize
Open the function with cut-off.During coal mining issue handling can be carried out to single hydraulic support.
The feed liquor stop valve used on current domestic the valve for roof support product, can be divided into by its sealing pair structural principle：
Spherical, planar shaped and cone-shaped three types, the stop valve of these three structures are all " Direct Action Types " in operation.This section
Only during valve events, it is laborious to rotate handwheel；Be easily damaged, short life, particularly Plane stop valve, when its latus rectum 25mm with
When upper, this defect is especially prominent；Valve could be opened in addition, handwheel will rotate multi-turn, time length, run into emergency
When, because stream has the very big liquid of pressure in main valve body, valve can hardly only be closed with the strength of human hand, this will be by work
Tool shuts pumping plant main valve, thus traditional stop valve close not in time, it is unreliable, in-convenience in use.
In the prior art, mining product uses U-shaped pin fast interface mode connection rubber tube more, and U-shaped pin is by material and frequency
Numerous plug is using can cause impaired deformation or even fly out, due to the particularity of main feed liquor cut-off, screw connection structure it is more reliable and
It is arranged and fixed conveniently.
In the prior art, mining product uses manual control mode more, and general stop valve uses rotary structure, rotation circle
Number is more and breakdown action is slow, and the screw thread of rotation is easily impaired to block failure, and needs closely to pull control, and efficiency is low and contacts
Pressure source danger coefficient is high.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention provides a kind of fit
In the leading controller of pilot valve, using pilot control mode, it is therefore an objective to realize the quick open and close of pilot valve, control is more
It is convenient, safer.
To achieve these goals, the technical scheme taken of the present invention is：Suitable for the leading controller of pilot valve, including
Guide valve blocks, in addition to be arranged in the guide valve blocks valve pocket component, moveable be arranged in valve pocket component and be used for
The set guide's liquid chamber opening and closing for being used in guide's counter balance pocket into the pilot valve provide fluid in control valve set component
Valve rod and for valve rod provide move it and make guide's liquid chamber close driving force drive device.
The valve pocket component includes the first valve pocket and the second valve pocket being arranged side by side, and the first valve pocket and the second valve pocket are both ends
It is open and inner hollow, the valve rod is inserted in the first valve pocket and the second valve pocket.
The side wall of the guide valve blocks is provided with the first passage connected with the inner chamber of guide valve blocks, second valve pocket
Between first valve pocket and the first passage, guide's liquid chamber is arranged at the inside of the first valve pocket.
First valve pocket has the guide's inlet opening connected with guide's liquid chamber, and second valve pocket has and institute
The connection of guide's counter balance pocket and the guide's fluid hole connected when guide's liquid chamber is in open mode with guide's liquid chamber are stated, it is described
Guide valve blocks, which have, to be connected with guide's fluid hole and guide's counter balance pocket and makes guide's mistake when guide's liquid chamber is in open mode
The liquid pass hole that fluid in sap cavity is flowed into guide's counter balance pocket.
The valve rod includes first body of rod, second body of rod and the seal set gradually, and first body of rod fills with the driving
Put connection, second body of rod is located in guide's liquid chamber and the overall diameter of second body of rod is less than the interior diameter of guide's liquid chamber,
Seal optionally controls the opening and closing of guide's liquid chamber.
The seal includes being used for the first sealing for controlling guide's liquid chamber opening and closing and for controlling described the
Second sealing of set exhaust chamber opening and closing in two valve pockets, guide's fluid hole be located at guide's liquid chamber and exhaust chamber it
Between.
First sealing is frustum structure, have in first valve pocket be used to contact with the first sealing realize it is close
The circular conical surface of envelope.
Second sealing is frustum structure, have in second valve pocket be used to contact with the second sealing realize it is close
The circular conical surface of envelope.
The seal also includes being connected with first sealing and second sealing and being located at the first sealing
And the second connecting portion between sealing.
The drive device includes the support being arranged on the guide valve blocks and the coil being arranged on support, the valve
In bar insertion coil and it can magnetize in magnetic field caused by coil electricity.
The leading controller suitable for pilot valve of the present invention, by setting guide's liquid chamber to be put down with guide in valve pocket component
The cooperation of weighing apparatus chamber, realizes that pilot valve quickly opens and closes, and control is more convenient, can be born using pilot control balance cavity configuration
50~80MPA operating pressure, greatly improve the programme area that pilot valve uses；Guide's frustum sealing structure on valve rod uses
Metal hard-sealing, service life is high and anti-pollution corrosion-proof ability is strong；Manually, electromagnetic double-mode control mode is more conveniently and flexibly, electric
Magnetic control mode can realize the remote control of pilot valve opening and closing, improve safety coefficient；Valve pocket component uses spiral shell with guide valve blocks
Line connected mode, convenient disassembly are fixed reliable.
Brief description of the drawings
This specification includes the following drawings, and shown content is respectively：
Fig. 1 is the main sectional view of the pilot valve with leading controller of the present invention；
Fig. 2 is the sectional view of the pilot valve with leading controller of the present invention；
Fig. 3 is the structural representation of valve rod；
Fig. 4 is the sectional view of the first valve pocket；
Fig. 5 is the sectional view of the second valve pocket；
Fig. 6 is the sectional view of guide valve blocks；
Fig. 7 is the sectional view of main valve body；
Fig. 8 is main sectional view of the pilot valve in original state；
Fig. 9 is sectional view of the pilot valve in original state；
Figure 10 is that pilot valve enters fashionable main sectional view in high-voltage oil liquid；
Figure 11 is that pilot valve enters fashionable sectional view in high-voltage oil liquid；
Figure 12 is main sectional view of the pilot valve in open mode；
Figure 13 is sectional view of the pilot valve in open mode；
Figure 14 be pilot valve in off position when main sectional view；
Figure 15 be pilot valve in off position when sectional view；
In figure mark for：
1st, support；2nd, coil；3rd, guide valve blocks；31st, the first passage；32nd, the first accommodating cavity；33rd, the second accommodating cavity；
34th, the first liquid pass hole；35th, the second liquid pass hole；36th, the first oil duct；37th, the 3rd accommodating cavity；4th, the first valve pocket；41st, guide crosses liquid
Chamber；42nd, guide's inlet opening；43rd, external screw thread；44th, primary sealing area；5th, the second valve pocket；51st, exhaust chamber；52nd, storage tank；53rd, first
Export fluid apertures；54th, secondary sealing area；6th, valve rod；61st, first body of rod；62nd, second body of rod；63rd, the first sealing；64th, connect
Portion；65th, the second sealing；66th, the 3rd body of rod；67th, the 4th body of rod；7th, main valve body；71st, the second passage；72nd, guide balances
Chamber；73rd, the second oil duct；74th, main inlet opening；75th, main fluid hole；76th, main valve chamber；77th, protuberance；8th, main valve plug；9th, draw ring；
10th, the first spring；11st, second spring.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention is made further details of
Explanation, it is therefore an objective to help those skilled in the art to have more complete, accurate and deep reason to design of the invention, technical scheme
Solution, and contribute to its implementation.
It is a kind of pilot valve as depicted in figs. 1 and 2, it includes main valve body 7, is arranged at guide's counter balance pocket 72 of main valve body 7
In main valve plug 8 and the present invention leading controller, the leading controller includes the pilot valve that is fixedly connected with main valve body 7
Body 3, the valve pocket component being arranged in guide valve blocks 3, movably it is arranged in valve pocket component and in control valve set component
Valve rod 6 that the set guide's liquid chamber 41 for being used to providing fluid into guide's counter balance pocket 72 is opened and closed and for providing valve rod 6
Move it and make the drive device of the driving force of the closing of guide's liquid chamber 41.
Specifically, as depicted in figs. 1 and 2, guide valve blocks 3 are realized by multiple bolts and are fixedly connected with main valve body 7.
As shown in fig. 6, guide valve blocks 3, which are one end, has the structure of opening and inner hollow, valve pocket component is from the openend of guide valve blocks 3
Insert in the inner chamber of guide valve blocks 3, the side wall of the blind end of guide valve blocks 3 is provided with a less through hole in aperture, as making
The first passage 31 that the inner chamber of guide valve blocks 3 connects with external environment.
As shown in figure 1, valve pocket component includes the first valve pocket 4 and the second valve pocket 5 inside guide valve blocks 3 is arranged side by side,
First valve pocket 4 and the second valve pocket 5 are both ends open and the cylindrical member of inner hollow, and the first valve pocket 4 and the second valve pocket 5 are opened
Mouthful end is relative and end face is bonded, and valve rod 6 can be inserted in the inside of the first valve pocket 4 and the second valve pocket 5, and valve rod 6 is through first
Inserted behind the inner chamber of valve pocket 4 in the inner chamber of second valve pocket 5.
As shown in figures 1 to 6, the inner chamber of guide valve blocks 3 is circular cylindrical cavity, and it includes accommodating the first appearance of valve pocket component
Chamber 32 is put, the first accommodating cavity 32 is to extend to pilot valve along the length direction of guide valve blocks 3 since the end face of guide valve blocks 3
The inside of body 3 simultaneously forms the opening for allowing valve pocket component to insert on the end face.First valve pocket 4 and the second valve pocket 5 are inserted in first
In accommodating cavity 32, the diameter of the overall diameter of the first valve pocket 4 and the second valve pocket 5 and the first accommodating cavity 32 is roughly equal, the first valve pocket 4
Be arranged with sealing ring with the second valve pocket 5, avoid fluid at the first valve pocket 4 and the second valve pocket 5 and the first accommodating cavity 32 in
Revealed between wall.As preferable, the first valve pocket 4 to be threadedly coupled, facilitates the dismounting of valve pocket component with guide valve blocks 3, and
And there are the confined planes for playing position-limiting action to valve pocket component on axis in the inside of the first accommodating cavity 32, the second valve pocket 5 presss from both sides
Between the confined planes and the first valve pocket 4, one end end face of the second valve pocket 5 is bonded with the confined planes, other end end face and first
One end end face fitting of valve pocket 4.As shown in Figure 4 and Figure 6, the other end outer surface of the first valve pocket 4 is provided with external screw thread 43, accordingly
Opening position close to openend on the internal face of the first accommodating cavity 32 is provided with internal thread.
As shown in figure 4, the inner chamber of the first valve pocket 4 is guide's liquid chamber 41, guide's liquid chamber 41 is in the first valve pocket 4
Axially through the circular cylindrical cavity of setting at the heart.First valve pocket 4 has the guide's feed liquor for being provided with and being connected with guide's liquid chamber 41
Hole 42, guide's inlet opening 42 are the through hole that setting is extended radially through in the side wall of the first valve pocket 4.As shown in fig. 6, guide valve blocks
3 inside has the first oil duct 36 for allowing the high-voltage oil liquid flowed out through main valve body 7 to enter, and the first oil duct 36 is from guide valve blocks 3
On the side being bonded with main valve body 7 on start to extend in the inside of guide valve blocks 3 on the internal face at first accommodating cavity 32,
First oil duct 36 forms opening on the internal face at the first accommodating cavity 32, and the opening is simultaneously alignd and connected with guide's inlet opening 42
It is logical, so that high-voltage oil liquid can enter in guide's liquid chamber 41, promote valve rod 6 to move, realize guide's liquid chamber 41
Open.
As shown in figure 5, the inner chamber of the second valve pocket 5 includes the storage tank 52 and exhaust chamber 51 set gradually vertically, house
The diameter of groove 52 is more than the diameter of exhaust chamber 51 and both are coaxial, storage tank 52 and positioned at exhaust chamber 51 and guide's liquid chamber 41 it
Between, the diameter of the diameter and guide's liquid chamber 41 of exhaust chamber 51 is roughly equal.First valve pocket 4 has and storage tank 52 and main valve body
Guide's counter balance pocket 72 in 7 keeps guide's fluid hole 53 of connection, and guide's fluid hole 53 is along footpath in the side wall of the second valve pocket 5
To the through hole through setting, storage tank 52 is optionally connected and disconnected with guide's liquid chamber 41 and exhaust chamber 51.In guide
When liquid chamber 41 is in open mode, valve rod 6 makes storage tank 52 and guide towards after being moved close to the direction of the first passage 31
Liquid chamber 41 connects, storage tank 52 is not connected with exhaust chamber 51, and guide's fluid hole 53 passes through storage tank 52 and guide's liquid chamber
41 connections, it can flow into guide's counter balance pocket 72, push away through guide's fluid hole 53 hence into the high-voltage oil liquid in guide's liquid storage cylinder
Dynamic main valve plug 8 moves.Connect as shown in fig. 6, the inside of guide valve blocks 3 is provided with guide's fluid hole 53 and guide's counter balance pocket 72
Lead to and the high-voltage oil liquid in guide's liquid chamber 41 is flowed into guide's counter balance pocket 72 when guide's liquid chamber 41 is in open mode
Liquid pass hole, the liquid pass hole includes the first liquid pass hole 34 and the second liquid pass hole 35 that set gradually, the axis of the first liquid pass hole 34
With the axis of the second liquid pass hole 35 and the axis coaxle of guide's counter balance pocket 72 and with the axis perpendicular of the first accommodating cavity 32, first
The diameter of liquid pass hole 34 be less than the second liquid pass hole 35 diameter and less than guide's fluid hole 53 diameter, the second liquid pass hole 35 it is straight
Footpath is less than the diameter of guide's counter balance pocket 72, and the first liquid pass hole 34 uses minor diameter bidirectional damper small structure, can buffer disengaging
Flow rate of liquid, reduce hydraulic shock.When guide's liquid chamber 41 is closed, valve rod 6 is directed away from the first passage 31
Direction movement after storage tank 52 and exhaust chamber 51 are connected, storage tank 52 is not connected with guide's liquid chamber 41, first export liquid
Hole 53 is connected by storage tank 52 with exhaust chamber 51, so that when main valve plug 8 moves, the fluid quilt in guide's counter balance pocket 72
Main valve plug 8 is extruded and can flowed into through liquid pass hole and guide's fluid hole 53 in exhaust chamber 51, is most discharged afterwards through the first liquid pass hole 34.
As shown in figure 3, valve rod 6 include set gradually vertically first body of rod 61, second body of rod 62, seal, the 3rd
The body of rod 67 of the body of rod 66 and the 4th.First body of rod 61 and second body of rod 62 are the cylindrical structural being fixedly and coaxially connected, first body of rod
61 length is more than the length of second body of rod 62, the part of first body of rod 61 extend out to the outside of guide valve blocks 3 and with driving
Device connects, and in another part insertion guide liquid chamber 41 of first body of rod 61, second body of rod 62 is located in guide's liquid chamber 41
And second the overall diameter of the body of rod 62 be less than the interior diameter of guide's liquid chamber 41, the overall diameter of first body of rod 61 and guide's liquid chamber 41
Interior diameter it is equal in magnitude, sealed between the outside wall surface of first body of rod 61 and the internal face of guide's liquid chamber 41 by sealing ring.
The overall diameter of second body of rod 62 is less than the interior diameter of guide's liquid chamber 41, so as to outside wall surface and the guide's liquid chamber of second body of rod 62
The space for accommodating high-voltage oil liquid is formed between 41 internal face.By controlling the axial movement of valve rod 6, make seal alternative
Control guide liquid chamber 41 opening and closing.
As shown in figure 3, seal controls the first sealing 63 of the opening and closing of guide's liquid chamber 41 and for controlling including being used for
The second sealing 65 that exhaust chamber 51 is opened and closed, by controlling the axial direction of valve rod 6 to move back and forth, make the first sealing 63 alternative
Control guide liquid chamber 41 opening and closing, make what the second sealing 65 optionally controlled exhaust chamber 51 to beat on and off
Close.After the first sealing 63 opens guide's liquid chamber 41, the second sealing 65 closes exhaust chamber 51；In the first sealing
After 63 close guide's liquid chamber 41, the second sealing 65 opens exhaust chamber 51.
As shown in figure 3, as preferable, the first sealing 63 be frustum structure, have in the first valve pocket 4 one for
The circular conical surface of sealing is realized in the contact of first sealing 63, and the circular conical surface is as the primary sealing area being engaged with the first sealing 63
44, the first sealing 63 have a bigger diameter end, a miner diameter end and connection bigger diameter end end face and miner diameter end face it is cylindrical
The conical surface, the diameter of bigger diameter end are more than the diameter of miner diameter end, and the diameter of bigger diameter end is more than second body of rod 62 and guide's liquid chamber 41
Diameter, the miner diameter end of the first sealing 63 and second body of rod 62 are fixedly and coaxially connected and the diameter of miner diameter end and second body of rod 62
Overall diameter is equal in magnitude.Primary sealing area 44 is set at liquid outlet in the first valve pocket 4 positioned at guide's liquid chamber 41, first is close
Front cover 44 and be internal conical surface.The diameter of the miner diameter end of first sealing 63 is less than the diameter of guide's liquid chamber 41, it is ensured that first
Sealing 63 may be inserted into liquid outlet, outer conical surface is contacted with primary sealing area 44, realize it is hard in sealing contact, and by guide
Liquid chamber 41 is closed, and sealing reliability greatly improves, good seal performance.
As shown in figure 3, as preferably, the second sealing 65 is also frustum structure, and having one in the second valve pocket 5 is used for
The circular conical surface for realizing sealing is contacted with the second sealing 65, the circular conical surface is as the second sealing being engaged with the second sealing 65
Face 54, the second sealing 65 have the outer of a bigger diameter end, a miner diameter end and connection bigger diameter end end face and miner diameter end face
Circular conical surface, the diameter of bigger diameter end are more than the diameter of miner diameter end, and the diameter of bigger diameter end is more than the interior diameter of exhaust chamber 51 and less than appearance
The interior diameter of groove 52 is put, the miner diameter end of the second sealing 65 and the 3rd body of rod 66 are fixedly and coaxially connected and the diameter of miner diameter end and
The overall diameter of three bodies of rod 66 is equal in magnitude.Secondary sealing area 54 is set at inlet in the second valve pocket 5 positioned at exhaust chamber 51,
Secondary sealing area 54 and be internal conical surface.The diameter of the miner diameter end of second sealing 65 is less than the diameter of exhaust chamber 51, it is ensured that the
Two sealings 65 may be inserted into feed liquor mouth, outer conical surface is contacted with secondary sealing area 54, and realization is hard in sealing contact, and will row
Sap cavity 51 is closed, and sealing reliability greatly improves, good seal performance.
As shown in figure 3, seal also includes being fixedly and coaxially connected and being located at the first sealing 63 and the second sealing 65
Connecting portion 64 between first sealing 63 and the second sealing 65, connecting portion 64 is circular, the diameter of connecting portion 64 and first
The diameter of the bigger diameter end of the bigger diameter end of sealing 63 and the second sealing 65 is equal, and connecting portion 64 and the first sealing 63 is big
Footpath end is fixedly connected with the bigger diameter end of the second sealing 65.The diameter of connecting portion 64 is less than the interior diameter of storage tank 52, in valve rod 6
In moving process, the bigger diameter end of the sealing 63 of connecting portion 64 and first and the second sealing 65 is in storage tank 52 all the time, and
Storage tank 52 is set to keep connected state with guide's fluid hole 53.
As shown in figures 1 and 3, the 3rd body and the 4th body of rod 67 are the cylindrical structural being fixedly and coaxially connected, the 3rd body of rod
66 and the 4th the body of rod 67 be respectively positioned in exhaust chamber 51, the overall diameter of the 3rd body of rod 66 is less than the interior diameter of exhaust chamber 51, the 4th bar
The overall diameter of body 67 is more than the overall diameter of the 3rd body of rod 66 and is slightly less than the interior diameter of exhaust chamber 51, the 4th body of rod 67 and exhaust chamber
Have between 51 internal face and allow the gap that fluid passes through.
Valve pocket component is arranged to what is be made up of two valve pockets, is on the one hand the matching requirements for meeting valve rod, valve rod it is close
Envelope body will be placed between two valve pockets；On the other hand it is to meet processing request, is both needed to set inside the first valve pocket and the second valve pocket
The sealing mates of sealing surface and valve rod, so it is easy to the processing respectively of the first valve pocket and the sealing surface on the second valve pocket, it is close
Front cover needs smart car and grinding to handle.
As shown in figures 1 to 6, the end sidewalls of guide valve blocks 3 are provided with the first passage 31 connected with exhaust chamber 51,
The inner chamber of guide valve blocks 3 also includes the second accommodating cavity 33 for accommodating the first spring 10, and the second accommodating cavity 33 is presented axially in the
Between one passage 31 and the first accommodating cavity 32, the diameter of the second accommodating cavity 33 is less than the diameter of the first accommodating cavity 32, so that
Formed between first accommodating cavity 32 and the second accommodating cavity 33 and spacing confined planes are carried out to valve pocket component, the first passage 31 passes through
Second accommodating cavity 33 keeps connected state with exhaust chamber 51.In the part insertion exhaust chamber 51 of first spring 10, another part
In the second accommodating cavity 33, the first spring 10 and to be clipped in valve rod 6 relative with the 4th body of rod 67 with the second accommodating cavity 33
Between internal face, the first spring 10, which is used to apply valve rod 6, makes it be directed away from the elasticity of the direction of the second accommodating cavity 33 movement
Active force, support and cushioning effect can be played to valve rod 6.
As shown in fig. 7, the inner chamber of main valve body 7 is initially towards master on the side being bonded with guide valve blocks 3 of main valve body 7
The extended circular cylindrical cavity in the inside of valve body 7, the axis of the inner chamber of main valve body 7 mutually hang down with the axis of the inner chamber of guide valve blocks 3
Directly, main valve plug 8 is movably is arranged in the inner chamber of main valve body 7, the moving direction of main valve plug 8 and the moving direction of valve rod 6
Perpendicular, the inner chamber of main valve body 7 is divided into a main valve chamber 76 and guide's counter balance pocket 72 by main valve plug 8.Outside main valve body 7
Side wall is provided with a main inlet opening 74 and a main fluid hole 75, main inlet opening 74 connect with one end of main valve chamber 76, and master goes out
Fluid apertures 75 connects with the other end of main valve chamber 76, and is formed and allow the fluid course that fluid passes through, and main valve plug 8 is to be used to control liquid stream
The break-make of passage, main valve plug 8 can interrupt fluid course after inserting in main valve chamber 76, into the fluid in main inlet opening 74 not
It can be flow to through main valve chamber 76 in main fluid hole 75.
As shown in figure 1, being provided with second spring 11 in guide's counter balance pocket 72 of main valve body 7, a part for the first spring 10 is inserted
In the inner chamber for entering main valve plug 8, another part is located in guide's counter balance pocket 72, and second spring 11 is simultaneously clipped in main valve plug 8 and pilot valve
Between body 3, second spring 11, which is used to apply main valve plug 8, makes it be directed away from the elastic reaction of the direction of guide valve blocks 3 movement
Power, the movement of main valve plug 8 can be promoted when the oil pressure in main valve chamber 76 is little until fluid course is closed, blocks fluid course
The flowing of middle fluid.When the oil pressure of the fluid entered through main inlet opening 74 in main valve chamber 76 is larger, the second bullet can be offset first
Elastic acting force caused by spring 11, then fluid promote main valve plug 8 to move, extrude second spring 11, reduce guide counter balance pocket 72
Size, while fluid course is opened, master can be flowed to through main valve chamber 76 hence into the high-voltage oil liquid of main inlet opening 74
In fluid hole 75, finally flow in the Hydraulic Elements being connected with main fluid hole 75.During guide's counter balance pocket 72 reduces,
Its internal fluid can hold through the liquid pass hole on guide valve blocks 3, guide's fluid hole 53, the inner chamber of the second valve pocket 5 and second successively
Chamber 33 is put, is discharged eventually through the first passage 31.
As shown in fig. 7, the inside of main valve body 7 has to allow flows to the first oil duct 36 into the high-voltage oil liquid in main valve chamber 76
In the second oil duct 73, the second oil duct 73 is extends to master on internal face at main valve chamber 76 in the inside of main valve body 7
On the side being bonded with guide valve blocks 3 on valve body 7, the second oil duct 73 simultaneously keeps connected state with the first oil duct 36.Into master
Guide's liquid chamber 41 that high-voltage oil liquid in valve pocket 76 is flowed in the first valve pocket 4 through the first oil duct 36 and the second oil duct 73 successively
In, into the high-voltage oil liquid in guide's liquid chamber 41 valve rod 6 can be promoted to move, extrude the first spring 10, offset the first spring 10
To reverse elasticity active force caused by valve rod 6, guide's liquid chamber 41 is opened, the high-voltage oil liquid warp in such guide's liquid chamber 41
Liquid pass hole in guide's fluid hole 53 and guide valve blocks 3 enters in guide's counter balance pocket 72, forms guide's liquid chamber 41 and main valve chamber
76 pressure balance, while in the presence of second spring 11, main valve plug 8 closes fluid course, main valve plug 8 and main valve chamber 76
Interior liquid pass hole contact to form sealing pair.
As shown in Figure 1 and Figure 7, main inlet opening 74 is parallel with the axis of main fluid hole 75 and two are arranged at main valve body 7
Same side wall on, main inlet opening 74 and main fluid hole 75 are in the same straight line parallel with the inner chamber axis of main valve body 7
On, main fluid hole 75 and between main inlet opening 74 and guide valve blocks 3.One second is additionally provided with the side wall of main valve body 7 to lead to
Stomata 71, the second passage 71 are used on the internal face for the flange and main valve body 7 for making to set on the outer wall of main valve plug 8 circle set
The cavity formed between ring limit block is connected with external environment, with ensure main valve plug 8 can straight line move back and forth.
Set integral projection 77 on main valve body 7 is allowed to be embedded in as shown in fig. 6, the inside of guide valve blocks 3 is additionally provided with one
The 3rd accommodating cavity 37, the 3rd accommodating cavity 37 be on the side being bonded with main valve body 7 of guide valve blocks 3 towards guide valve blocks
The extended circular cylindrical cavity in 3 inside, the 3rd accommodating cavity 37 and 34 coaxial and three of the second liquid pass hole 35 and the first liquid pass hole
Connection, the second liquid pass hole 35 and between the first liquid pass hole 34 and the 3rd accommodating cavity 37.As shown in fig. 7, based on protuberance 77
The end projective structure of valve body 7, protuberance 77 and be the cirque structure of both ends open and inner hollow, protuberance 77 it is outer straight
Footpath and the interior diameter sizableness of the 3rd accommodating cavity 37, protuberance 77 surround and form guide's counter balance pocket 72.In assembling guide valve blocks 3
During with main valve body 7, protuberance 77 can be inserted in the 3rd accommodating cavity 37, realize that guide valve blocks 3 are determined with the preliminary of main valve body 7
Position, is then bolted guide valve blocks 3 and main valve body 7；It is meanwhile close by setting between protuberance 77 and guide valve blocks 3
Sealing is realized in seal, is improved the reliability of sealing, is avoided fluid from being revealed between the contact surface of guide valve blocks 3 and main valve body 7.
As shown in figure 1, as preferably, drive device includes the support 1 being arranged on guide valve blocks 3 and is arranged at support
Coil 2 on 1, valve rod 6 is inserted in coil 2 and the caused magnetic field magnetization that can be powered by coil 2, coil 2 control valve rod 6 to move,
It is configured to so-called push-pull electromagnet, first body of rod 61 of valve rod 6 is equivalent to the iron core of electromagnet, and first body of rod 61 is from coil
Passed through in 2 centre bore.Coil 2 produces magnetic field after being powered, and magnetic field magnetizes first body of rod 61, and first body of rod 61 forms superposition magnetic
, power is produced when the magnetic line of force is from a pole to another polar motion, so that valve rod 6 can do linear reciprocating motion vertically, control
The opening and closing of guide's liquid chamber 41 and exhaust chamber 51.
The operation principle of the pilot valve of said structure is further described below.
As shown in Figure 8 and Figure 9, pilot valve is in original state, and working hole P (referring to main inlet opening 74) no pressure liquid enters
Enter, valve rod 6 closes guide's liquid chamber 41 in the presence of the first spring 10, the first sealing 63 and the first valve pocket 4 of valve rod 6
The interior contact of primary sealing area 44 forms sealing, and main valve plug 8 is formed with main valve body 7 in the presence of second spring 11 and sealed, will
Fluid course is closed.
As shown in Figure 10 and Figure 11, when high-voltage oil liquid enters pilot valve, high-voltage oil liquid is from working hole P (referring to main inlet opening 74)
Into main valve chamber 76, the high-voltage oil liquid into main valve chamber 76 enters through the second oil duct 73, the first oil duct 36 and guide's inlet opening 42
In guide's liquid chamber 41, promote valve rod 6 to move to left into the high-voltage oil liquid in guide's liquid chamber 41, until make the second sealing 65 with
The contact of secondary sealing area 54 in second valve pocket 5 forms sealing, and exhaust chamber 51 is closed, while the high pressure in guide's liquid chamber 41
Fluid is entered in guide's counter balance pocket 72 by the liquid pass hole 34 of guide's fluid hole 53 and first, the second liquid pass hole 35, due to high-voltage oil liquid
Pressure balance is formed by guide's liquid chamber 41, under the effect of second spring 11, main valve plug 8 and the contact of main valve body 7 form sealing
Pair, due to the structure of guide's counter balance pocket 72,50MPA pressure can be born, there is lock for working hole A (referring to main fluid hole 75)
The effect of closing, closes fluid course.
As shown in Figure 12 and Figure 13, pilot valve is in open mode.Fluid course is opened when needing to move main valve plug 8
When, now there are two modes to control：First, controlling valve rod 6 to move to right by the coil 2 of energization, guide's liquid chamber 41 is closed；Two
It is by pulling the draw ring 9 being connected with the end of first body of rod 61 of valve rod 6, hand moves to right valve rod 6, equally can be by guide's mistake
Sap cavity 41 is closed.After guide's liquid chamber 41 is closed, the high-voltage oil liquid of main valve chamber 76 is entered by working hole P (referring to main inlet opening 74)
It may not flow into guide's liquid chamber 41, guide's counter balance pocket 72 fails, and main valve plug 8 above pushes away under high-voltage oil liquid effect, fluid course
Open, high-voltage oil liquid enters working hole A (referring to main fluid hole 75), and the fluid in guide's counter balance pocket 72 passes through the inflow of exhaust chamber 51 the
One blow vent, is discharged.
As shown in Figure 14 and Figure 15, pilot valve is closed.Fluid course is closed when needing to move main valve plug 8
When, now equally there are two modes to control：First, controlling valve rod 6 to move to left by the coil 2 of energization, guide's liquid chamber 41 is beaten
Open；Second, by promoting draw ring 9 to move to left valve rod 6, guide's liquid chamber 41 can equally be opened.Guide's liquid chamber 41 is opened
Afterwards, guide's liquid chamber 41 is connected with guide's counter balance pocket 72, and the high pressure of main valve chamber 76 is entered by working hole P (referring to main inlet opening 74)
Fluid can be flowed into guide's liquid chamber 41, may proceed to flow to guide's counter balance pocket 72 into the high-voltage oil liquid in guide's liquid chamber 41
In, the depressed fast after the collective effect of high-voltage oil liquid and second spring 11 of main valve plug 8, main valve plug 8 forms close with main valve body 7
Envelope, separate the connection between working hole P and working hole A, realize the closing of pilot valve, it is high in working hole A (referring to main fluid hole 75)
Press liquid locking pressure-bearing.
The present invention is exemplarily described above in association with accompanying drawing.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress；Or not
It is improved, the above-mentioned design of the present invention and technical scheme are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (8)
1. suitable for the leading controller of pilot valve, including guide valve blocks, it is characterised in that：Also include being arranged at the pilot valve
Internal valve pocket component, moveable it be arranged in valve pocket component and be used for for set in control valve set component to the elder generation
The valve rod of guide's liquid chamber opening and closing of fluid is provided in guide's counter balance pocket in pilot valve and moved it simultaneously for providing valve rod
Make the drive device of the driving force of guide's liquid chamber closing；
The valve pocket component includes the first valve pocket and the second valve pocket being arranged side by side, and the first valve pocket and the second valve pocket are both ends open
And inner hollow, the valve rod are inserted in the first valve pocket and the second valve pocket；
First valve pocket has the guide's inlet opening connected with guide's liquid chamber, and second valve pocket has and the elder generation
Lead counter balance pocket connection and the guide's fluid hole connected when guide's liquid chamber is in open mode with guide's liquid chamber, the guide
Valve body, which has, to be connected with guide's fluid hole and guide's counter balance pocket and makes guide's liquid chamber when guide's liquid chamber is in open mode
In fluid flow into guide's counter balance pocket in liquid pass hole.
2. the leading controller according to claim 1 suitable for pilot valve, it is characterised in that：The side of the guide valve blocks
Wall is provided with the first passage connected with the inner chamber of guide valve blocks, and second valve pocket is located at first valve pocket and first and led to
Between stomata, guide's liquid chamber is arranged at the inside of the first valve pocket.
3. the leading controller according to claim 1 suitable for pilot valve, it is characterised in that：The valve rod is included successively
First body of rod, second body of rod and the seal set, first body of rod are connected with the drive device, and second body of rod is located at the elder generation
Lead in liquid chamber and the overall diameter of second body of rod is less than the interior diameter of guide's liquid chamber, seal optionally controls guide's mistake
The opening and closing of sap cavity.
4. the leading controller according to claim 3 suitable for pilot valve, it is characterised in that：The seal includes using
In the first sealing for controlling guide's liquid chamber opening and closing and for controlling exhaust chamber opening and closing set in second valve pocket
The second sealing, guide's fluid hole is between guide's liquid chamber and exhaust chamber.
5. the leading controller according to claim 4 suitable for pilot valve, it is characterised in that：First sealing is
Frustum structure, first valve pocket is interior to have the circular conical surface for being used for that realization sealing to be contacted with the first sealing.
6. the leading controller according to claim 4 suitable for pilot valve, it is characterised in that：Second sealing is
Frustum structure, second valve pocket is interior to have the circular conical surface for being used for that realization sealing to be contacted with the second sealing.
7. the leading controller according to claim 4 suitable for pilot valve, it is characterised in that：The seal also includes
It is connected with first sealing and second sealing and the connecting portion between the first sealing and the second sealing.
8. according to any described leading controller suitable for pilot valve of claim 3 to 7, it is characterised in that：The driving
Device includes the support that is arranged on the guide valve blocks and the coil being arranged on support, and can in the valve rod insertion coil
Magnetic field magnetizes caused by coil electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545506.XA CN106015141B (en) | 2016-07-12 | 2016-07-12 | Leading controller suitable for pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545506.XA CN106015141B (en) | 2016-07-12 | 2016-07-12 | Leading controller suitable for pilot valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015141A CN106015141A (en) | 2016-10-12 |
| CN106015141B true CN106015141B (en) | 2017-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610545506.XA Active CN106015141B (en) | 2016-07-12 | 2016-07-12 | Leading controller suitable for pilot valve |
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| CN (1) | CN106015141B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149068A (en) * | 2006-09-18 | 2008-03-26 | 湖南科技大学 | Electricity liquid ratio relief valve |
| KR101533419B1 (en) * | 2011-03-02 | 2015-07-03 | 현대중공업 주식회사 | Sleeve sliding type regulator for negative flow control system |
| CN103089728B (en) * | 2011-11-02 | 2016-03-16 | 广西柳工机械股份有限公司 | Differential type pilot overflow valve |
| CN203614484U (en) * | 2013-10-23 | 2014-05-28 | 宁波明启液压机械有限公司 | Overflow valve |
| CN205779982U (en) * | 2016-07-12 | 2016-12-07 | 芜湖繁星教育咨询有限公司 | Pilot controller |
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| CN106015141A (en) | 2016-10-12 |
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Effective date of registration: 20170810 Address after: 241000 Anhui city of Wuhu province Wuhu County Wan Zhi Zhen Wu Tun Bei Lu fertilizer factory dormitory building No. 11 West 19 Applicant after: Li Tao Address before: Wuhu County, Anhui city of Wuhu province Anhui Wuhu 241000 East Economic Development Zone standard workshop of 41 buildings of 2 floors (e-commerce Industrial Park) Applicant before: WUHU FANTAR EDUCATION CONSULTING CO.,LTD. |
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Effective date of registration: 20200921 Address after: Zhong Ming Zhen Jin Long Cun, Tongling County, Tongling City, Anhui Province Patentee after: TONGLING HUAJIA MINERAL TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 241000 Anhui city of Wuhu province Wuhu County Wan Zhi Zhen Wu Tun Bei Lu fertilizer factory dormitory building No. 11 West 19 Patentee before: Li Tao |
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Effective date of registration: 20221020 Address after: 246700 Zongyang Development Zone, Zongyang County, Tongling City, Anhui Province Patentee after: Anhui Yutang New Material Technology Co.,Ltd. Address before: 244100 Jinlong Village, Zhongming Town, Tongling County, Tongling City, Anhui Province Patentee before: TONGLING HUAJIA MINERAL TECHNOLOGY DEVELOPMENT Co.,Ltd. |