CN1203260C - Three-position three-way hydraulic change valve - Google Patents
Three-position three-way hydraulic change valve Download PDFInfo
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- CN1203260C CN1203260C CN 03118633 CN03118633A CN1203260C CN 1203260 C CN1203260 C CN 1203260C CN 03118633 CN03118633 CN 03118633 CN 03118633 A CN03118633 A CN 03118633A CN 1203260 C CN1203260 C CN 1203260C
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Abstract
The present invention discloses a three-position three-way hydraulic change valve which belongs to the valve class. The hydraulic change valve of the present invention is applied to a direction control element of a hydraulic system, and is used for strictly sealing filthy water containing a great number of solid impurities without leakage; expensive ceramic materials are not used, the method of precision machining is avoided, the filtration is eliminated, and the service life of the direction control element is prolonged. The hydraulic change valve of the present invention is formed by the symmetrical connection of two inverted opening conical valves with identical structures, each inverted opening conical valve comprises a valve body with a seat of the inverted opening conical valve, a valve core, a rubber membrane, an air cylinder piston, a guide sleeve of the air cylinder piston, a return spring and an end cover, wherein the inner space of the valve body is divided into a working chamber and an air cylinder chamber by the rubber membrane, the valve body of the working chamber is provided with an external working interface, and the valve body is provided with an electromagnetic pilot valve. In the present invention, the working main runners are isolated from the air cylinder chambers by the rubber membranes, working parts in the air cylinder chambers are protected from severe corrosion and abrasive wear, the inverted opening conical valves are adopted to realize reliable sealing without leakage, the hydraulic change valve of the present invention is insensitive to the medium pollution, expensive ceramic materials or valve sleeves are not used, and precision machining is not carried out; the three-position three-way hydraulic change valve has the advantages of reliable working and long service life, and is suitable for sea water, fresh water and high-water base low-viscosity media.
Description
Technical field
The invention belongs to the valve class, is a kind of hydraulic system direction control element of making (comprising low viscosity liquid such as natural sea-water, fresh water and high water base fluid) the work medium with water base fluid that is applicable to.
Background technique
Directly with natural sea-water or fresh water as the water hydraulic drive technology of hydraulic medium have safety, with characteristics such as environmentally compatible,, system simplification compatible, energy-conservation, economy, health with product; can satisfy people's craving for to greatest extent for aspects such as safety, energy economy ﹠ environment protections; the needs that meet human kind sustainable development; become the advanced subject in current international hydraulics field, had extremely wide application prospect.Developed country comprises that the U.S., Britain, Germany, Finland, Denmark, Japan etc. began to develop from the late 1970s or the beginning of the eighties, entered the practical popularization stage, and in field extensive uses such as mining industry, Iron And Steel Industry, food processing, water treatment plant, environmental sanitation machinery, nuclear power industry, underwater operation, ocean development.As Hauhinco GmbH company, Britain Fenner company, Denmark Danfoss company and Finland Hytar Oy company of Germany or the like.China begins to carry out the research work of water hydraulic drive technology aspect from early 1990s, development speed is comparatively slow, the R﹠D work of all kinds of water hydraulic elements still is in starting stage (LiZhuangyun, et al.The Development and Perspective of WaterHydraulics.The 4
ThJHPS International Symposium, 1999, Japan.).
Direction control element is one of critical function element most widely used, indispensable in the hydraulic system, plays the important function that the circulation of control liquid is disconnected and circulating direction moves with control actuating component in system.Germany Hauhinco GmbH company, Finland Hytar Oy company, Britain Fenner company, the directional control valve (comprising electrohydraulic control etc.) of developments such as Denmark Danfoss company and Japanese JP-6301 adopts traditional slide-valve structure mostly, and used ceramic valve core or valve pocket (as: 1. Samland U.and Hausherr G.The Use of New Materials in WaterHydraulics.Proc.of 4th Scandinavian Int.Conf.on Fluid Power, Tampere, Finland, Sept.1995:955～964. are Kari T.Koskinen and MattiJ.Vilenius.Water as a Pressure Medium in Fluid Power System.IFACWorkshop on Trends in Hydraulic and Pneumatic Components andSystems.Nov.8～9 2., 1994, Chicago. reach the political affairs husband on 3.. Ha ウ ヒ Application コ society water hydraulics. oily pneumatics technology, 99 (6) etc.).This simple in structure, volume is little, in light weight, but because of adopting clearance seal between spool and valve pocket, exist inevitably and leak, when with the very low water of viscosity during as hydraulic medium, leakage rate by spool/valve pocket gap is very big, and the erosion effect meeting of gap high speed current quickens the damage of matching relationship between spool/valve pocket, when containing solid particle polluter in the water, also can cause fatal spool stuck phenomenon.So slide-valve structure not only needs to use expensive stupalith, need the precision machining means, and leakage loss is big, and needs secondary filter.Contain solid particle polluter more and the strict control of needs leakage rate and the operating mode that needs strict seal in the incompatibility water.
Summary of the invention
3-position-3-way water hydraulic selector valve of the present invention solves and is used to contain the more addle of solid impurity, realizes strict seal, and needn't use expensive stupalith and accurate manufacturing process, the also filtration of unnecessary precision, and the problem that increases the service life.
3-position-3-way water hydraulic selector valve of the present invention comprises valve body, spool and electromagnetic priority valve, and valve body has external interface, it is characterized in that:
(1) described 3-position-3-way water hydraulic selector valve is joined by two valve of falling prostomum symmetries and constitutes, and the docking site forms cavity, is connected with first external interface on the valve body;
(2) two valve arrangements of falling the prostomum are identical, comprise valve body, spool, elastomer diaphragm, cylinder piston, cylinder piston guide sleeve, Returnning spring and the end cap of being with the valve seat of falling the prostomum separately, elastomer diaphragm is equipped with at the middle part in valve body, separated by spaces in the valve body is active chamber between valve seat of falling the prostomum and the elastomer diaphragm and the cylinder chamber between elastomer diaphragm and the end cap, and active chamber valve body of living in has the work external interface;
The cylinder piston guide sleeve is pressed on the outward edge of elastomer diaphragm in the valve body, cylinder piston and Returnning spring are installed in the cylinder chamber and by the cylinder piston guide sleeve and lead, the spool head is in the valve seat of falling prostomum place, spool links into an integrated entity by nut and cylinder piston, and the interior circle of elastomer diaphragm is by spool afterbody and clamping of cylinder piston crown and motion together thereupon;
Electromagnetic priority valve is installed on the valve body, and its suction port links to each other with air source inlet passage on the valve body, and the passage that leads to cylinder chamber on its air outlet and the valve body links to each other.
Described 3-position-3-way water hydraulic selector valve, the spool head can be equipped with conical gasket, can be equipped with between y-shaped ring, end cap and valve body on the cylinder piston O-ring seals can be housed.
Described 3-position-3-way water hydraulic selector valve, it is further characterized in that on two valve of falling the prostomum end caps handlebar that runs through end cap is housed, its big end withstands cylinder piston in cylinder chamber, its small end stretches out and withstands the handle head outside the end cap, and handle is movably attached on the end cap by bearing pin.
The present invention has following technical advantage or characteristics:
(1) structural type of the employing valve of falling the prostomum, and make the valve port conical gasket with the enhancing polymer composite, form spool/valve seat soft/hard combination seal, can realize reliable inclusion seal, be specially adapted to seawater, fresh water and high low viscosity hydraulic medium such as water base;
(2) adopt the corrugated rubber diaphragm that the sprue of valve work and the cylinder chamber of drive controlling spool motion are kept apart, aqueous medium in the sprue and solid impurity can not enter in the cylinder chamber, thus can not cause cylinder piston in the cylinder chamber, the heavy corrosion of motion component such as cylinder, cylinder piston guide sleeve, Y shape rubber seal and abrasive wear phenomenon take place;
(3) adopt the gentle pressure-driven spool of electromagnetic pilot, driving force is big, spool flexible movements, reliable;
(4) insensitive to medium pollution, be applicable to " addle " that contains more solid impurity in the medium, and need not secondary filter;
(5) need not adopt expensive stupalith spool or valve pocket, need not precision machining, the element cost can reduce greatly;
(6) both can implement electric operating, and also can when not having electricity, meet an urgent need and implement manually-operable;
(7) reliable operation, long service life.
Description of drawings
Fig. 1 3-position-3-way water hydraulic of the present invention selector valve structural drawing
The A-A sectional drawing of Fig. 2 Fig. 1
The B-B sectional drawing of Fig. 3 Fig. 1
Fig. 4 3-position-3-way water hydraulic selector valve function graphical diagram
Embodiment
With reference to Fig. 1～Fig. 4, the 3-position-3-way water hydraulic selector valve of indication of the present invention is made of left and right two the basic the same valve of falling prostomum butt joints.
The right valve of falling the prostomum is made of valve body 18, Returnning spring 21, corrugated rubber diaphragm 23, the spool 24 of being with conical gasket 5 and hydraulic pressure ingress interface (P mouth) 55, hydraulic pressure discharge coupling (A mouth), the air source inlet interface 57 of electromagnetic priority valve 1, handle 6, cylinder piston guide sleeve 9, handlebar 11, cylinder piston 14, end cap 16, the band valve seat of falling the prostomum 4 and cylinder chamber 20 respectively.Cylinder piston guide sleeve 9 is installed in the valve body 18 by screw 22, gives cylinder piston 14 motion guides; Cylinder piston 14 and cylinder piston Returnning spring 21 are installed in the cylinder chamber 20, and y-shaped ring 17 is installed on the cylinder piston 14; The spool 24 of band conical gasket 5 links into an integrated entity by nut 13 and cylinder piston 14, with cylinder piston 14 motions; Conical gasket 5 on the spool 24 drops on the valve seat of falling the prostomum 4 on the valve body 18, forms valve port 25 conical surface seals; Corrugated rubber diaphragm 23 is equipped with at the middle part in valve body 18, the cylindrical of this diaphragm is pressed on the valve body 18 motionless by cylinder piston guide sleeve 9, the interior circle of this diaphragm is clamped by spool 24 afterbodys and cylinder piston 14 heads, and can be with cylinder piston 14 and spool 24 motions; Between the right side of valve port 25 and corrugated rubber diaphragm 23, there is a cavity 56 to link to each other, between the left side of valve port 25 and the left side valve body of falling the prostomum 33, has a cavity 54 to link to each other, cavity 56 and cavity 54 are separated by valve port 25 with A mouth 53 with P mouth 55; Handlebar 11 is installed on the end cap 16, and its big end can withstand cylinder piston 14 in cylinder chamber 8, and its small end can withstand handle 6 heads outside valve body.Electromagnetic priority valve 1 is installed on the upper-end surface of valve body 18, its suction port a2 links to each other with air source inlet passage 2 on the valve body, the passage 3 that leads to cylinder chamber 8 on its air outlet a1 and the valve body 18 links to each other with 7, the electromagnet of electromagnetic priority valve 1 is by getting the electric break-make of coming the air source inlet passage 2 on the control valve body 18 with dead electricity and leading to the passage 3 of cylinder chamber 8, and then 24 to-and-fro motion of control cylinder piston 14 drive spools, promptly with the automatically controlled keying of cone valve valve port 25 and the break-make of P mouth 55 and A mouth 53 of realizing; Pull handle 6 to the right with hand, handle 6 heads push handlebar 11 to left movement, promote cylinder piston 14 and drive spool 24 to left movement, after hand-power is removed, drive spools 24 and move right and reset, promptly with the keying that manually realizes cone valve valve port 25 and P mouth 55 break-make with A mouth 53 at the effect lower cylinder piston 14 of spring 21.
The left side valve of falling the prostomum is made of valve body 33, Returnning spring 30, corrugated rubber diaphragm 28, the spool 27 of being with conical gasket 46 and the backwater mouth interface (O mouth) 51 of electromagnetic priority valve 50, handle 45, cylinder piston guide sleeve 42, handlebar 40, cylinder piston 37, end cap 35, the band valve seat of falling the prostomum 47 and cylinder chamber 31 respectively.Cylinder piston guide sleeve 42 is installed in the valve body 33 by screw 29, gives cylinder piston 37 motion guides; Cylinder piston 37 and cylinder piston Returnning spring 30 are installed in the cylinder chamber 31, and y-shaped ring 34 is installed on the cylinder piston 37; The spool 27 of band conical gasket 46 links into an integrated entity by nut 38 and cylinder piston 37, with cylinder piston 37 motions; Conical gasket 46 on the spool 27 drops on the valve seat of falling the prostomum 47 on the valve body 33, forms valve port 26 conical surface seals; Corrugated rubber diaphragm 28 is equipped with at the middle part in valve body 33, the cylindrical of this diaphragm is pressed on the valve body 33 motionless by cylinder piston guide sleeve 42, the interior circle of this diaphragm is clamped by spool 27 afterbodys and cylinder piston 37 heads, and can be with cylinder piston 37 and spool 27 motions; Between the left side of valve port 26 and corrugated rubber diaphragm 28, there is a cavity 52 to link to each other, cavity 52 and cavity 54 separated by valve port 26 with O mouth 51; Handlebar 40 is installed on the end cap 35, and its big end can withstand cylinder piston 37 in cylinder chamber 43, and its small end can withstand handle 45 heads outside valve body.Electromagnetic priority valve 50 is installed on the upper-end surface of valve body 33, its suction port b2 links to each other with air source inlet passage 49 on the valve body 33, the passage 48 that leads to cylinder chamber 43 on its air outlet b1 and the valve body 33 links to each other with 44, the electromagnet of electromagnetic priority valve 50 is by getting the electric break-make of coming the air source inlet passage 49 on the control valve body 33 with dead electricity and leading to the passage 48 of cylinder chamber 43, and then 27 to-and-fro motion of control cylinder piston 37 drive spools, promptly with the automatically controlled keying of cone valve valve port 26 and the break-make of A mouth 53 and O mouth 51 of realizing; Pull handle 45 left with hand, handle 45 heads push handlebar 40 and move right, promoting cylinder piston 37 drive spools 27 moves right, after hand-power is removed, drive spool 27 and reset, promptly with the keying that manually realizes cone valve valve port 26 and A mouth 53 break-make with O mouth 51 to left movement at the effect lower cylinder piston 37 of spring 30.
Air source inlet passage 2 on the valve body 18 and the air source inlet passage 49 on the valve body 33 communicate, and link to each other with air source inlet interface 57 on the valve body 18.Component such as the corrugated rubber diaphragm in left and right two valves of falling the prostomum, cylinder piston, cylinder piston guide sleeve, cylinder piston Returnning spring, conical gasket, spool, end cap, handlebar, handle and electromagnetic priority valve exchange.
When left and right two valves of falling the prostomum all were failure to actuate, this 3-position-3-way water hydraulic selector valve was carried out the meta function, and three interface P mouths, A mouth and O mouths are not connected, and valve port 25 and valve port 26 can reach inclusion seal; During the right valve events of falling the prostomum, this 3-position-3-way water hydraulic selector valve is carried out right bit function, and P mouth and A mouth communicate; A left side is during the valve events of falling the prostomum, and this 3-position-3-way water hydraulic selector valve is carried out left bit function, and A mouth and O mouth communicate.P mouth and O mouth can exchange use.
This valve has a wide range of applications in all kinds of hydraulic systems that are working medium with seawater, fresh water or high low viscosity liquid such as water base, and also can be used for the mineral wet goods is other all kinds of hydraulic systems of working medium.
Claims (3)
1. 3-position-3-way water hydraulic selector valve, comprise valve body, spool and electromagnetic priority valve, valve body has external interface, and described 3-position-3-way water hydraulic selector valve is joined by two valve of falling prostomum symmetries and constitutes, the docking site forms cavity, is connected with first external interface on the valve body; Two valve arrangements of falling the prostomum are identical, comprise valve body, spool, cylinder piston, the cylinder piston guide sleeve of being with the valve seat of falling the prostomum separately; It is characterized in that:
Elastomer diaphragm is equipped with at the middle part in two each comfortable valve bodies of the valve of falling the prostomum, and separated by spaces in the valve body is active chamber between valve seat of falling the prostomum and the elastomer diaphragm and the cylinder chamber between elastomer diaphragm and the end cap, and active chamber valve body of living in has the work external interface;
The cylinder piston guide sleeve is pressed on the outward edge of elastomer diaphragm in the valve body, cylinder piston and Returnning spring are installed in the cylinder chamber and by the cylinder piston guide sleeve and lead, the spool head is in the valve seat of falling prostomum place, spool links into an integrated entity by nut and cylinder piston, and the interior circle of elastomer diaphragm is by spool afterbody and clamping of cylinder piston crown and motion together thereupon;
Two electromagnetic priority valves are installed on the valve body, and its suction port links to each other with air source inlet passage on the valve body, and the passage that leads to cylinder chamber on its air outlet and the valve body links to each other, and controls two cylinder pistons respectively.
2. 3-position-3-way water hydraulic selector valve as claimed in claim 1 is characterized in that the spool head is equipped with conical gasket, is equipped with on the cylinder piston between y-shaped ring, end cap and valve body O-ring seals is housed.
3. 3-position-3-way water hydraulic selector valve as claimed in claim 1 or 2, it is characterized in that on two valve of falling the prostomum end caps handlebar that runs through end cap being housed, its big end withstands cylinder piston in cylinder chamber, its small end stretches out and withstands the handle head outside the end cap, and handle is movably attached on the end cap by bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118633 CN1203260C (en) | 2003-02-21 | 2003-02-21 | Three-position three-way hydraulic change valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118633 CN1203260C (en) | 2003-02-21 | 2003-02-21 | Three-position three-way hydraulic change valve |
Publications (2)
| Publication Number | Publication Date |
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| CN1434219A CN1434219A (en) | 2003-08-06 |
| CN1203260C true CN1203260C (en) | 2005-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03118633 Expired - Fee Related CN1203260C (en) | 2003-02-21 | 2003-02-21 | Three-position three-way hydraulic change valve |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100913458B1 (en) * | 2005-03-22 | 2009-08-25 | 글로벌 어그리컬쳐럴 테크놀로지 앤 엔지니어링, 엘엘씨 | Constant flow valve |
| CN101927227B (en) * | 2009-09-28 | 2013-05-01 | 深圳市轴心自控技术有限公司 | Three-component valve |
| CN101672382B (en) * | 2009-09-29 | 2011-04-20 | 费斯托(中国)有限公司 | Strut type shuttle valve |
| CN102384287B (en) * | 2011-06-23 | 2013-01-30 | 宁波亚德客自动化工业有限公司 | Three-position manual control valve |
| CN102943897B (en) * | 2012-10-18 | 2014-05-07 | 华中科技大学 | Pneumatic diaphragm type automatic pressure-difference reversing valve |
| CN104389831B (en) * | 2014-09-16 | 2016-03-30 | 中国船舶重工集团公司第七〇七研究所九江分部 | A kind of spool-type valves |
| CN104344017B (en) * | 2014-10-28 | 2016-05-25 | 华中科技大学 | A kind of flat closed type reversal valve |
| IL243664A (en) * | 2016-01-18 | 2017-10-31 | Dorot Man Control Valves Ltd | Control valve |
| CN109654259A (en) * | 2018-12-27 | 2019-04-19 | 深圳市硕锐科技有限公司 | Solenoid valve |
| CN109760825A (en) * | 2019-01-30 | 2019-05-17 | 西安航空制动科技有限公司 | A kind of steerable electrohydraulic servo valve |
| CN109733595A (en) * | 2019-01-30 | 2019-05-10 | 西安航空制动科技有限公司 | A kind of electrohydraulic servo valve being mechanically operated by |
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