CN109372816A - Two-position three way quick response hydraulic operated valve - Google Patents
Two-position three way quick response hydraulic operated valve Download PDFInfo
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- CN109372816A CN109372816A CN201811553541.1A CN201811553541A CN109372816A CN 109372816 A CN109372816 A CN 109372816A CN 201811553541 A CN201811553541 A CN 201811553541A CN 109372816 A CN109372816 A CN 109372816A
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- valve
- spool
- valve body
- valve seat
- fluid port
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- 230000004044 response Effects 0.000 title claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of two-position three way quick response hydraulic operated valves, including spool, valve body and valve seat, the spool is slidably supported on valve seat and valve body, the valve seat is equipped with valve base sealing flange, for valve seat by the slidably supported spool of valve base sealing flange, the spool is slidably supported in the spool slide opening of valve body；It is equipped with the through-flow slot in end face in the upper end of the spool, the compression area at spool both ends is equal；Valve core piston portion is equipped on spool, which contacts with valve body slides；The valve body, spool and its valve core piston portion and valve seat surround the chamber that surges, and the chamber that surges on this is connected with oil duct on the valve seat on valve seat；The valve body and spool and its valve core piston portion surround down the chamber that surges, and the chamber that surges under this is connected with oil duct under the valve seat on valve seat；Hydraulic fluid port under valve body upper hydraulic fluid port and valve body is additionally provided on the valve body, the end of valve body is equipped with valve end hydraulic fluid port.The hydraulic operated valve can effectively shorten commutation the response time, realize large-flow high-frequency task.
Description
Technical field
The present invention relates to a kind of hydraulicdirectional control valve of Hydraulic Power Transmission System, more particularly to one kind are hydraulic for hydraulic pile hammer
The direction controlling main valve of transmission system.
Background technique
Piling machinery is the necessary equipment by stake injection stratum to reinforce foundation capability, with the large size of architectural engineering
Change and the complication of pile foundation engineering coefficient, so that pile foundation construction difficulty becomes higher and higher, foundation pile length and diameter also becomes
Must be increasing, this requires for the piling machinery on foundation pile injection stratum to be had higher blow energy and higher strike
Frequency.
Hydraulic pile hammer due to have the characteristics that piling is high-efficient, noise low vibration is small, without fume pollution, it is advanced
Through being widely recognized as, hydraulic pile hammer has gradually become the absolutely main force in piling market.But existing hydraulic pile hammer is due to liquid
Pressure drive circuit has frequently included guide's solenoid electric valve and multistage direction controlling main valve, and this adds increased hydraulic control circuits
Complexity reduces reliability, so that hydraulic circuit through-current capacity is small, the pressure loss is big, and oil rub resistance ability is weak, and action sensitivity is not
Height, there are response speeds it is slow, impact velocity is low, the single hammer action time is long the deficiencies of, with hydraulic pile hammer blow speed
With the raising of blow energy, back pressure is inevitably formed in hydraulic cylinder oil pocket, blow energy and speed are restricted,
It is difficult to meet the hundreds of kilojoules of large-scale foundation pile even the blow energy requirement of thousands of kilojoules.
Chinese patent 201610480824.2 discloses " a kind of hydraulic coupling stake system and its inserted valve ", and inserted valve includes
There are control cover board, spool, valve pocket, reset spring and spool guide sleeve, valve pocket is fixedly installed on control cover board, and spool is then slided
It is dynamic to be supported in valve pocket, it is additionally provided with spool guide sleeve and reset spring between control cover board and spool, is arranged on valve pocket
There are the first hydraulic fluid port and the second hydraulic fluid port, is then provided with third hydraulic fluid port and oil duct cavity on spool；The inserted valve is by spool in valve pocket
In sliding transfer realize the on-off of the first, second and third hydraulic fluid port and oil duct cavity, reach the opening and closing of inserted valve, the inserted valve is real
The circulation for having showed big flow pressure oil is conducive to the increase of hydraulic pile hammer blow energy.But there are still such as in practical applications
Lower deficiency: firstly, spool is readily formed back pressure when commutating mobile, the opening and closing response speed of inserted valve is directly affected；Work as valve
It is hydraulic between two planes when especially spool end is close to spool bore bottom surface when core is mobile to control cover board upper valve core bore
Oil cannot smooth discharge in time, form resistance and slow down the movement speed close to each other of spool significantly, respond opening and closing
It is slow to obtain, but also the opening and closing that will form valve body is unreliable；When spool is mobile backwards to the direction of control cover board spool bore, spool
Again there are mutual adsorption capacity between end face and spool bore bottom surface, hydraulic oil cannot obtain being replenished in time the same meeting between two planes
Delay the response speed of spool.Second, thrust that should be mobile using reset spring as valve core reset in the structure of valve is supplemented, or
The mobile initial thrust using spring force as spool, but when spring upholds provided motive force, since spring is in high pressure liquid
In pressure oil, compression, the extension response of spring are slower, and elastic force is extremely limited again, thus is relied on elastic force and pushed, not only unreliable, but also
Enough motive forces cannot be provided, the response speed of valve cannot be equally effectively improved.Third, the inserted valve fail to efficiently control
The compression area at spool both ends is in high-pressure and hydraulic environment when due to inserted valve work, and both ends compression face product moment can shape
At biggish spool moving resistance, the mobile response speed of spool and movement speed are greatly hampered.4th, in the valve arrangement
Control cover board, spool and valve pocket are not comprised only, but also includes spool guide sleeve, this not only adds the quantity of part,
It makes troubles to the manufacture and installation of valve, and will increase the sealed faying face between part, it is big in this high frequency of hydraulic pile hammer
In the impact working environment of energy, it is easy to form leakage or crossfire, and influence the response speed of spool.
Summary of the invention
For above-mentioned deficiency present in the prior art, technical problem to be solved by the invention is to provide two three a kind of
Logical quick response hydraulic operated valve can not only realize that big flow works, and can effectively shorten the commutation response time, improve work frequency
It is secondary.
In order to solve the above-mentioned technical problem, two-position three way quick response hydraulic operated valve of the invention, including spool, valve body and valve
Seat, valve body are fixedly installed on valve seat, and the spool is slidably supported on valve seat and valve body, and it is convex which is equipped with valve base sealing
Edge, for valve seat by the slidably supported spool of valve base sealing flange, the spool is slidably supported in the spool slide opening of valve body；Described
The upper end of spool is equipped with the through-flow slot in end face, and the compression area at spool both ends is equal；Valve core piston portion, the spool are equipped on spool
Piston portion is contacted with valve body slides；The valve body, spool and its valve core piston portion and valve seat surround the chamber that surges, and surge on this chamber
It is connected with oil duct on the valve seat on valve seat；The valve body and spool and its valve core piston portion surround down the chamber that surges, and surge under this
Chamber is connected with oil duct under the valve seat on valve seat；Hydraulic fluid port under valve body upper hydraulic fluid port and valve body is additionally provided on the valve body, valve body
End is equipped with valve end hydraulic fluid port；When spool upward sliding, spool closed valve upper hydraulic fluid port, so that hydraulic fluid port and valve body end under valve body
Portion's hydraulic fluid port communicates, and when spool slide downward, valve body upper hydraulic fluid port leads to valve end hydraulic fluid port through spool radial direction hydraulic fluid port.
Since the spool of the hydraulicdirectional control valve is slidably supported on valve seat and valve body, valve seat is sliding by valve base sealing flange
Dynamic to carry spool, spool is slidably supported in the spool slide opening of valve body, allow in this way hydraulic valve element obtain it is maximum
Simplify, the simplification of valve components had both facilitated manufacture, installation and maintenance, it is often more important that reduces be combineding with each other between valve components
Sealing surface reduces the leakage of hydraulic oil and crossfire between each chamber, can obtain the mobile motive force of maximum spool, it is ensured that spool moves
Dynamic reliability and stability enhance spool response speed.
Again due to valve body, spool and valve seat the two sides in valve core piston portion form respectively surge chamber and under surge chamber,
It pushes the commutation of spool to slide with the hydraulic coupling of hydraulic oil, can both obtain sufficiently stable spool urging force, stable drive
Reliably, it is ensured that the mobile quick response of spool commutation, to improve the rapid response speed of valve, which also has knot
The feature that structure is simple and compact, speed is easy to adjust.
More due to being equipped with the through-flow slot in end face in spool upper surface corresponding with seating position, it ensure that hydraulic oil can fill
Divide and promptly enter between spool upper surface and spool bore bottom surface, effectively eliminates spool back pressure；When spool is shifted on valve seat
When spool bore bottom surface, the hydraulic oil of two opposite faces is smoothly discharged in time along the through-flow slot in end face, without will form backwards
Resistance, when spool is mutually separated with spool bore bottom surface, hydraulic oil can be quickly supplemented to along the through-flow slot in end face again two opposite faces it
Between, adsorption will not be generated；Therefore produced by the setting of the through-flow slot in spool upper end preferably solves in spool commutation movement
Back pressure phenomenon, so that spool response speed is greatly enhanced.
Also due to the structure equal using spool both ends compression face, so that the spool both ends stress in high pressure liquid pressure oil
Balance, the mobile commutation of spool are only dependent upon hydraulic-driven power caused by chamber of surging above and below, and spool commutates without additional drag,
It equally ensure that the raising of commutation response speed.The main element of the two-position three way hydraulic operated valve only has valve seat, valve body and spool, no
Only the structure of valve is more compact, and decreases sealed faying face, reduces the generation of leakage failure.
Further embodiment of the invention is set on the sliding surface that valve base sealing flange on the valve seat is constituted with spool
It is equipped with spool upper seal, which is installed on valve base sealing flange or spool.The structure realizes valve seat pair
Spool it is slidably supported.
The preferred embodiment of the present invention, the radially arranged several through-flow slots in end face in the upper surface of the spool.The end
The cross sectional shape that face is through-flow is rectangular channel or arc groove or triangular tooth slot.The back of spool commutation moving process can be effectively eliminated
Phenomenon is pressed, guarantees the mobile quick response of spool, and has the advantages that structure is simple, be convenient for production processing.
The preferred embodiment of the present invention, oil duct is connected through oil duct on the valve body on valve body with the chamber that above surges on the valve seat
Logical, oil duct is connected through the chamber that surges under of oil duct under the valve body on valve body under valve seat.It is arranged in the upper surface of valve body and valve base chamber
There is valve seat upper seal, sealing element and valve seat lower seal in seal receptacle are equipped in valve seat on the circumferential surface of valve body；Valve body oils
Road is located in valve seat upper seal and valve seat between sealing element, and oil duct road is located at close under sealing element and valve seat in valve seat under valve body
Between sealing.The structure constitutes the chamber that surges above and below of driving spool commutation, and sealed reliable is the most excellent in conjunction with sealing surface quantity
Change.
The preferred embodiment of the present invention is provided with piston seal in the valve core piston portion.The upper section of the spool
Center is equipped with valve core spring chamber, and spring is equipped between valve core spring chamber and valve seat；The valve core spring chamber is logical by spool
Hole is connected with spool axial direction oil duct road.Spring is provided with the response speed for being conducive to improve when spool is separated with valve seat.
The preferred embodiment of the present invention, the spool radial direction hydraulic fluid port are led to by several along the circle of spool cylinder circumferentially
Hole is constituted, and hydraulic fluid port is respectively by several circular through hole structures along valve body cylinder circumferentially under the valve body upper hydraulic fluid port and valve body example
At.The structure is conducive to increase the through-current capacity of valve.
The preferred embodiment of the present invention, overhanging section of the valve body be disposed with from the top down valve body upper seal,
Sealing element and hollow body lower seal in valve body；Valve body upper hydraulic fluid port is located in valve body upper seal and valve body between sealing element, valve body
Lower hydraulic fluid port is located in valve body between sealing element and valve body lower seal.It is installed convenient for the sealing of entire hydraulic operated valve.
Detailed description of the invention
Two-position three way quick response hydraulic operated valve of the present invention is made with reference to the accompanying drawings and detailed description further detailed
Explanation.
Fig. 1 is a kind of the schematic diagram of the section structure of specific embodiment of two-position three way quick response hydraulic operated valve of the present invention；
Fig. 2 is the schematic diagram of the section structure of spool in Fig. 1 illustrated embodiment；
Fig. 3 is Fig. 2 overlook direction structural schematic diagram；
Fig. 4 is the schematic diagram of the section structure of valve body in Fig. 1 illustrated embodiment；
Fig. 5 is the schematic diagram of the section structure of valve seat in Fig. 1 illustrated embodiment.
In figure, the chamber that surges under 1-spool, 2-valve bodies, 3-spool lower seals, 4-, 5-valve core piston portions, 6-are lived
Plug seal, 7-above surge chamber, oil duct on 8-valve seats, oil duct on 9-valve bodies, 10-valve seat upper seals, on 11-spools
Sealing element, 12-valve base sealing flanges, 13-valve seats, 14-valve seat top chambers, 15-springs, 16-valve core spring chambers, 17-valves
Oil duct, 21-valve seat lower seals, 22-under oil duct road, 20-valve seats under sealing element, 18-valve core through hole, 19-valve bodies in seat
Spool radial direction hydraulic fluid port, 24-valve body upper hydraulic fluid ports, 25-spool axial direction oil ducts, seals in 26-valve bodies 23-valve body upper seals
Hydraulic fluid port under part, 27-valve bodies, 28-valve body lower seals, 29-valve end hydraulic fluid ports, 30-end faces are through-flow slot, 31-pistons are close
Sealing groove, 32-spool lower seal groove cavities, seal groove in 33-valve seats, 34-valve seat lower seal groove cavities, seal groove, 36-on 35-valve bodies
Seal groove in valve body, 37-valve body lower seal groove cavities, seal groove on 38-valve bodies, 39-valve body lock chambers, 40-spool slide openings,
41-valve bodies limit convex shoulder, 42-spools limit convex shoulder.
Specific embodiment
Two-position three way quick response hydraulic operated valve as shown in Figure 1, the hydraulic operated valve mainly include spool 1, valve body 2 and valve seat
13；Spool 1 is slidably supported on valve seat 13 and valve body 2, and specifically valve body 2 is fixedly installed in valve body lock chamber 39, valve
The upper end of core 1 is slidably supported in 12 position of valve base sealing flange on valve seat 13, and the lower section of spool 1 is then slidably supported in valve body
In 2 spool slide opening 40.The location expressions such as upper and lower and top herein do not represent valve in the position and side of actual use
To, it is only for the convenience of description.
As shown in Fig. 2, the cylindrical structure of spool 1, is followed successively by valve core spring in the position of center line of spool 1 from the top down
Chamber 16, valve core through hole 18 and spool axial direction oil duct 25, valve core spring chamber 16, valve core through hole 18 and spool axial direction oil duct 25 mutually pass through
It is logical.It is disposed with the radial oil of valve core piston portion 5, spool lower seal groove cavity 32 and spool from the top down on the outer peripheral surface of spool 1
Mouth 22, is provided with piston seal slot 31 in 5 position of valve core piston portion.Spool radial direction hydraulic fluid port 22 is by 4 along 1 cylinder circumferential direction cloth of spool
The circular through hole set, the circular through hole are not limited to 4, can also be with 5,6 or more.The lower end position of spool 1 is provided with valve
Core limits convex shoulder 42.Spool cylinder diameter positioned at the upper and lower two sides in valve core piston portion 5 is equal, so that spool 1 is in hydraulic oil
The compression area of the upper end and the compression area of lower end are equal, in this way when spool 1 is in hydraulic oil hydraulic suffered by both ends
Power is equal, will not form additional drag to the commutation of spool movement.The compression area of its 1 upper end of spool includes 1 top of spool
The sum of circular axial projective area and 16 bottom surface effective area of valve core spring chamber；And the compression area of 1 lower end of spool is then valve
The significant surface of circular area and spool limit 42 axial projective area of convex shoulder and spool axial direction oil duct 25 of 1 lower end of core
The sum of product.The upper surface of spool 1 is provided with the through-flow slot 30 in multiple radially arranged end faces, the section of the end face is through-flow slot 30
Shape is also possible to the geometries groove such as arc groove or triangular tooth slot either rectangular channel.
As shown in figure 4, the substantially cylindrical structure of valve body 2, in the upper section cylinder that valve body 2 is fixedly connected with valve seat 13 from upper
It is disposed with oil duct 9 on valve body, oil duct 19 and valve seat lower seal groove cavity 34 under seal groove 33, valve body in valve seat downwards.In valve body 2
Overhanging section of cylinder on be disposed with seal groove 35 on valve body, valve body upper hydraulic fluid port 24, seal groove 36, valve in valve body from the top down
Oil 27 and valve body lower seal groove cavity 37 under body；Valve body limit convex shoulder 41 is provided in the lower end inner hole of valve body 2, valve body limits convex shoulder
41 is corresponding with spool limit 42 position of convex shoulder, moves down extreme position in valve body 2 to limit spool 1.Valve body upper hydraulic fluid port 24
It is formed by 4 along the circular through hole of valve body cylinder circumferentially with hydraulic fluid port 27 under valve body, but the circular through hole is also not necessarily limited to 4
It is a, it is also possible to 5,6 or more.
As shown in figure 5, valve seat 3 is set gradually in the round aecidioid structure of back-off in the center of valve seat 13 from the top down
There are valve seat top chamber 14, valve base sealing flange 12 and the valve body lock chamber 39 for fixed valve body 2, at 12 position of valve base sealing flange
It is provided with seal groove 38 on spool.8 He of oil duct on radially arranged valve seat is provided in the corresponding position of valve body lock chamber 39
Oil duct 20 under valve seat.On valve seat under oil duct 8 and valve seat the position of oil duct 20 respectively with oil duct 9 and valve body on the valve body on valve body 2
Lower oil duct is corresponding.
As shown in Figure 1, being provided between 1 upper end cylinder of the valve base sealing flange 12 on valve seat 13 and spool close on spool
Body 11 is sealed, sealing 11 is set on spool in seal groove 38 on the spool, and certain spool upper seal 11 also can be set in valve
In the corresponding groove of core 1, spool upper seal 11 is anti-high pressure O-ring seal.It is solid in the top surface of valve body 2 and the valve body of valve seat 13
Determine to be lined with valve seat upper seal 10 between 39 bottom surface of chamber, which can be copper or rubber gasket seal.
It is supported with spring 15 between 1 top spool spring cavity 16 of spool and the valve seat top chamber 14 of valve seat 13, which is cylinder pressure
Contracting spring.It is additionally provided on the cylinder that 28 upper section of valve body is fixedly connected with valve seat 13 in valve seat and is sealed under sealing element 17 and valve seat
Part 21, sealing element 17 and valve seat lower seal 21 are respectively arranged at seal groove 33 and valve seat lower seal groove cavity 34 in valve seat in valve seat
In.Piston seal 6 is equipped between the valve core piston portion 5 and valve body 2 of spool 1, which is set to piston seal
In slot 31；Spool lower seal 3 is additionally provided between spool 1 and valve body 2, which is placed in close under spool
In sealing groove 32.
The valve base sealing flange 12 of valve body 2, spool 1 and valve core piston portion 5 and valve seat 13 thereon surrounds the chamber 7 that surges；
Valve body 2, spool 1 and its valve core piston portion 5 surround down the chamber 4 that surges.Oil duct 8 leads to and surges through the valve body road 9 that oils on valve seat
Chamber 7, oil duct 20 surges chamber 4 under leading to through oil duct 19 under valve body under valve seat.Under the control of pilot valve, when hydraulic oil is through on valve seat
Oil duct 9 enters on oil duct 8, valve body when surging chamber 7, and driving spool 1 moves down, under hydraulic oil is through valve seat oil duct 20,
It is that driving spool 1 moves up that oil duct 19, which enters down when surging chamber 4, under valve body.
It is disposed with valve body upper seal 23 from the top down at overhanging section of valve body 2, sealing element 26 and hollow body in valve body
Lower seal 28；Valve body upper hydraulic fluid port 24 is located in valve body upper seal 23 and valve body between sealing element 26, hydraulic fluid port 27 under valve body
In valve body between sealing element 26 and valve body lower seal 28.Valve body upper seal 23 is set on valve body in seal groove 35, valve
Sealing element 26 is set in valve body in seal groove 36 in body, and valve body lower seal 28 is set in valve body lower seal groove cavity 37.
When spool 1 is pushed to lower limit position in the body 2, spool radial direction hydraulic fluid port 22 and 24 position phase of valve body upper hydraulic fluid port
It corresponds to and is interconnected, so that valve body upper hydraulic fluid port 24, spool radial direction hydraulic fluid port 22, spool axial direction oil duct 25 and valve end hydraulic fluid port 29
It is interconnected.Spool 1 blocks hydraulic fluid port 27 under the valve body on valve body 2 at this time.
When spool 1 is pushed to upper limit position in the body 2, the lower end of spool 1 moves to the top of hydraulic fluid port 27 under valve body
Position, spool radial direction hydraulic fluid port 22 are moved up and are staggered with valve body upper hydraulic fluid port 24, at this time hydraulic fluid port 27 and valve end hydraulic fluid port 29 under valve body
It is connected, and spool radial direction hydraulic fluid port 22 is blocked with valve body upper hydraulic fluid port 24.
Claims (10)
1. a kind of two-position three way quick response hydraulic operated valve, including spool (1), valve body (2) and valve seat (13), the fixed peace of valve body (2)
Loaded on valve seat (13), it is characterised in that: the spool (1) is slidably supported on valve seat (13) and valve body (2), the valve seat (13)
It is equipped with valve base sealing flange (12), valve seat (13) passes through valve base sealing flange (12) slidably supported spool (1), the spool
(1) in the slidably supported spool slide opening (40) in valve body (2)；The through-flow slot in end face (30), valve are equipped in the upper end of the spool (1)
The compression area at core (1) both ends is equal；Valve core piston portion (5) are equipped on spool (1), the valve core piston portion (5) and valve body (2)
Sliding contact；The valve body (2), spool (1) and its valve core piston portion (5) and valve seat (13) surround the chamber that surges (7), the upper liquid
Dynamic chamber (7) are connected with oil duct (8) on the valve seat on valve seat (13)；The valve body (2) and spool (1) and its valve core piston portion
(5) chamber that surges (4) are surrounded down, the chamber (4) that surges under this is connected with oil duct (20) under the valve seat on valve seat (13)；In the valve body
(2) hydraulic fluid port (27) under valve body upper hydraulic fluid port (24) and valve body is additionally provided on, the end of valve body (2) is equipped with valve end hydraulic fluid port (29)；
When spool (1) upward sliding, spool (1) closed valve upper hydraulic fluid port (24), so that hydraulic fluid port (27) and valve end hydraulic fluid port under valve body
(29) it communicates, when spool slide downward, valve body upper hydraulic fluid port (24) leads to valve end hydraulic fluid port (29) through spool radial direction hydraulic fluid port (22).
2. two-position three way quick response hydraulic operated valve according to claim 1, it is characterised in that: the valve seat on the valve seat (13)
Spool upper seal (11) are provided on the sliding surface that sealing flange (12) and spool (1) are constituted, the spool upper seal (11)
It is installed on valve base sealing flange (12) or spool (1).
3. two-position three way quick response hydraulic operated valve according to claim 1, it is characterised in that: the upper end of the spool (1)
The radially arranged several through-flow slots in end face (30) in face.
4. two-position three way quick response hydraulic operated valve according to claim 3, it is characterised in that: the end face through-flow (30) is cut
Face shape is rectangular channel or arc groove or triangular tooth slot.
5. two-position three way quick response hydraulic operated valve according to claim 1, it is characterised in that: oil duct (8) passes through on the valve seat
Oil duct (9) is connected with the chamber that above surges (7) on valve body on valve body (1), and oil duct (20) is through under the valve body on valve body (2) under valve seat
Oil duct (19) chamber (4) that surges under is connected.
6. according to claim 1 or the 5 two-position three way quick response hydraulic operated valves, it is characterised in that: in the upper surface of valve body (2)
It is provided with valve seat upper seal (10) between valve seat (13), sealing element in seal receptacle is equipped in valve seat on the circumferential surface of valve body (2)
(17) and valve seat lower seal (21)；The valve body road (9) that oils is located at sealing element (17) in valve seat upper seal (10) and valve seat
Between, oil duct road (19) are located in valve seat between sealing element (17) and valve seat lower seal (21) under valve body.
7. two-position three way quick response hydraulic operated valve according to claim 1, it is characterised in that: the valve core piston portion (5)
On be provided with piston seal (6).
8. two-position three way quick response hydraulic operated valve according to claim 1, it is characterised in that: the upper section of the spool (1)
Center is equipped with valve core spring chamber (16), is equipped with spring (15) between valve core spring chamber (6) and valve seat (13)；The spool bullet
Spring chamber (16) is connected by valve core through hole (18) with spool axial direction oil duct road (25).
9. two-position three way quick response hydraulic operated valve according to claim 1, it is characterised in that: the spool radial direction hydraulic fluid port
(22) it is made of several along the circular through hole of spool (1) cylinder circumferentially, it is oily under the valve body upper hydraulic fluid port (24) and valve body example
Mouth (27) is made of several along the circular through hole of valve body (2) cylinder circumferentially respectively.
10. two-position three way quick response hydraulic operated valve according to claim 1, it is characterised in that: the valve body (2) it is overhanging
Section is disposed with valve body upper seal (23) from the top down, sealing element (26) and hollow body lower seal (28) in valve body；Valve body
Upper hydraulic fluid port (24) is located in valve body upper seal (23) and valve body between sealing element (26), and hydraulic fluid port (27) is located in valve body under valve body
Between sealing element (26) and valve body lower seal (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553541.1A CN109372816A (en) | 2018-12-19 | 2018-12-19 | Two-position three way quick response hydraulic operated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553541.1A CN109372816A (en) | 2018-12-19 | 2018-12-19 | Two-position three way quick response hydraulic operated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109372816A true CN109372816A (en) | 2019-02-22 |
Family
ID=65370905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811553541.1A Pending CN109372816A (en) | 2018-12-19 | 2018-12-19 | Two-position three way quick response hydraulic operated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109372816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985472A (en) * | 2019-12-30 | 2020-04-10 | 广东力源液压机械有限公司 | Cartridge valve of hydraulic pile driving system and dynamic output control method thereof |
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| CN203516832U (en) * | 2013-08-22 | 2014-04-02 | 重庆达腾科技发展有限公司 | Two-position three-way valve for wellhead safety control system |
| CN105927606A (en) * | 2016-06-23 | 2016-09-07 | 广东力源液压机械有限公司 | Hydraulic piling system and cartridge valve thereof |
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| DE102005003982A1 (en) * | 2005-01-28 | 2006-08-10 | Bosch Rexroth Ag | Pneumatic directional valve for switching of compressed air flow between several external connections has control pressure piston which in addition to movement of valve spool also serves as shut-off component for valve seat |
| CN201786792U (en) * | 2010-08-26 | 2011-04-06 | 长沙星特自控设备实业有限公司 | Two-position three-way proportional ball valve |
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| CN110985472A (en) * | 2019-12-30 | 2020-04-10 | 广东力源液压机械有限公司 | Cartridge valve of hydraulic pile driving system and dynamic output control method thereof |
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