CN202732524U - Water hydraulic two-way cartridge valve - Google Patents

Water hydraulic two-way cartridge valve Download PDF

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Publication number
CN202732524U
CN202732524U CN 201220383257 CN201220383257U CN202732524U CN 202732524 U CN202732524 U CN 202732524U CN 201220383257 CN201220383257 CN 201220383257 CN 201220383257 U CN201220383257 U CN 201220383257U CN 202732524 U CN202732524 U CN 202732524U
Authority
CN
China
Prior art keywords
valve
seal ring
spool
cover plate
valve pocket
Prior art date
Application number
CN 201220383257
Other languages
Chinese (zh)
Inventor
王庆辉
吴张永
王娴
段振华
保勇前
温成卓
吴喜
莫子勇
高晓艳
曲金涛
刘云韩
Original Assignee
昆明理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 昆明理工大学 filed Critical 昆明理工大学
Priority to CN 201220383257 priority Critical patent/CN202732524U/en
Application granted granted Critical
Publication of CN202732524U publication Critical patent/CN202732524U/en

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Abstract

The utility model relates to a cartridge valve, in particular to a high-pressure hydraulic two-way cartridge valve suitable for water, and belongs to the technical field of hydraulic transmission. The cartridge valve comprises a pilot control valve, a control cover plate and a valve body composed of an insert component and an integrated block, wherein the pilot control valve is mounted on the valve body through the control cover plate. The cartridge valve solves the problems that a common water hydraulic two-way cartridge valve is serious in leak, easy to wear, and lower in efficiency and service life and the like, and has the advantages of high operational reliability, good insert component interchange ability, and realization in leakage-free cone type sealing and long service life.

Description

A kind of water hydraulic two-way plug-in valve

Technical field

The utility model relates to OnePlant cartridge valve, particularly a kind of high-pressure and hydraulic two-way plug-in valve that is applicable to aqueous medium belongs to hydraulic transmission technology field.

Background technique

General hydraulic system adopts the oil base working medium mostly, and because the sliding valve structure manufacturing process is simple, processing cost is lower, and employed position control valve, pressure controlled valve and flow control valve adopt slide-valve structure more.But the sealing of sliding valve structure seals by spool and valve pocket gap, and the gap between its valve core and valve pocket is larger, therefore leakage is comparatively serious, efficient is lower.In the water hydraulic transmission, the viscosity of aqueous medium is low, poor lubricity, serious adhesive wear usually occurs in friction pair, the corrosivity of aqueous medium is strong in addition, pressure for vaporization is high, leaks seriously the high-velocity flow that spool face flows through on the face that is slidingly matched between spool and the valve pocket, can bring serious wire drawing erosion and erosion, the valve port place easily produces cavitation erosion.If contain impurity particle in the aqueous medium, also can cause serious abrasive wear.Therefore, sliding valve structure is difficult to be suitable for water base working medium.

Summary of the invention

The purpose of this utility model is to provide a kind of high-pressure and hydraulic two-way plug-in valve that is applicable to aqueous medium, with solve ordinary water hydraulic pressure two-way plug-in valve leak serious, be easy to wear and tear and efficient and working life lower problem.

The technical solution of the utility model is: a kind of water hydraulic two-way plug-in valve comprises pilot-actuated valve 1, control cover plate 2 and the valve body that is comprised of plug-in mounting assembly and integrated bulk 10.Pilot-actuated valve 1 is installed on the valve body by control cover plate 2.

Described plug-in mounting assembly comprises seal ring I 3, seal ring II 4, valve pocket 5, seal ring III 6, spring 7, spool 8 and seal ring IV 9.The bottom that spring 7 is contained in the spool 8 and with spool 8 inwalls and is slidingly matched, its upper and lower end is connected respectively control cover plate 2 and spool 8.Spool 8 is contained in the valve pocket 5 and with valve pocket 5 inwalls and is slidingly matched, and adds seal ring III 6 on the face that is slidingly matched of spool 8 and valve pocket 5, to eliminate the leakage between B active chamber and the C control chamber.Seal ring I 3 is enclosed within valve pocket 5 tops, and seal ring II 4 and seal ring IV 9 are enclosed within respectively the top and bottom of valve pocket 5.

The described seal ring I 3 that is enclosed within valve pocket 5 tops contacts with the bottom surface extruding of control cover plate 2.

Described seal ring II 4 all contacts with the extruding of integrated bulk 10 inwalls with seal ring IV 9.

Described spool 8 adopts the cone valve type structure, and adds seal ring at the face of being slidingly matched with valve pocket, effectively reduces air pocket and produces, and stops a leak simultaneously.The combination seal form is adopted in axial seal, and sealing material is selected engineering plastics, because of advantages such as it have that good water dissolubility, swelling sclerosis are little, wear resistance and crushing resistance are good.

The two-way plug-in valve spool adopts the cone valve type structure more, and when spool was closed, the valve port between spool and the valve seat was linear sealing, and sealing is reliable, has avoided the leakage between A chamber and the B chamber.

Since the special physicochemical property of aqueous medium, steel and iron parts or Al-alloy parts that water hydraulic two-way plug-in valve control cover plate and integrated bulk adopt surface ceramic deposition to process, and manufacture cost is lower than original stainless steel; Because water hydraulic two-way plug-in valve valve core movement speed, its acceleration that produces is also larger, so spool adopts SiC or Si 3N 4Engineering ceramics.Use SiC or Si 3N 4Engineering ceramics can reduce valve core movement inertia, improves spool frequency of okperation and speed of response, in addition SiC or Si 3N 4Anticorrosive, the wear-resistant and higher hardness of engineering ceramics can improve anti-cavitation erosion and the wire drawing erosion performance of spool; Because metal-graphite material also has good self lubricity, good damping thermal conductivity and less expansion coefficient etc. when having the superperformance of metal, therefore valve pocket adopts metal-graphite material, frequency that can Effective Raise water hydraulic two-way plug-in valve, improve sealability, bumper and absorbing shock, form soft-hard material pairing, the working life of Effective Raise water hydraulic two-way plug-in valve with valve core material.

The utility model can make up with various pilot-actuated valves, forms position control valve, pressure controlled valve and flow control valve.

The beneficial effects of the utility model are:

1: working medium is pure water or water base fluid.

2: spool adopts SiC or Si 3N 4The engineering ceramics manufacturing forms, and can improve the anticorrosive wearing and tearing of spool, anti-cavitation erosion and wire drawing erosion performance;

3: spool adopts the cone valve type structure, the conical surface of spool head is close on the valve seat in the valve pocket hole, forms reliable linear sealing, and adds seal ring at the face of being slidingly matched with valve pocket, add axial seal and adopt the combination seal form, can realize without leaking the cone sealing;

4: valve pocket adopts metal-graphite material, forms soft-hard material pairing, the working life of Effective Raise water hydraulic two-way plug-in valve with valve core material;

5: control cover plate and integrated bulk adopt surface ceramic deposition to process, and manufacture cost is lower than original stainless steel;

6: the interchangeability of plug-in mounting assembly is good, and reliability is high.The size conforms standard GB/T 2877-2007 of this water hydraulic two-way plug-in valve plug-in package and international working standard DIN24342 and CETOP RP 96H, namely as long as latus rectum is identical, the boundary dimension of all plug-in packages all is the same, and the interchangeability of plug-in mounting assembly is good, and is easy to maintenance.

Description of drawings

Fig. 1 is the utility model structural representation;

Each label is among the figure: 1: pilot-actuated valve, 2: control cover plate, 3: seal ring I, 4: seal ring II, 5: valve pocket, 6: seal ring III, 7: spring, 8: spool, 9: seal ring IV, 10: integrated bulk.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail, but content of the present utility model is not limited to described scope.

Embodiment 1: as shown in the figure, a kind of water hydraulic two-way plug-in valve comprises pilot-actuated valve 1, control cover plate 2 and the valve body that is comprised of plug-in mounting assembly and integrated bulk 10.Pilot-actuated valve 1 is installed on the valve body by control cover plate 2.The plug-in mounting assembly comprises seal ring I 3, seal ring II 4, valve pocket 5, seal ring III 6, spring 7, spool 8 and seal ring IV 9.The bottom that spring 7 is contained in the spool 8 and with spool 8 inwalls and is slidingly matched, its upper and lower end is connected respectively control cover plate 2 and spool 8.Spool 8 is contained in the valve pocket 5 and with valve pocket 5 inwalls and is slidingly matched, and adds seal ring III 6 on the face that is slidingly matched of spool 8 and valve pocket 5.Seal ring I 3 is enclosed within valve pocket 5 tops, and seal ring II 4 and seal ring IV 9 are enclosed within respectively the top and bottom of valve pocket 5.The seal ring I 3 that is enclosed within valve pocket 5 tops contacts with the bottom surface extruding of control cover plate 2.Seal ring II 4 all contacts with the extruding of integrated bulk 10 inwalls with seal ring IV 9.Spool 8 adopts the cone valve type structure.

Embodiment 2: as shown in the figure, a kind of water hydraulic two-way plug-in valve comprises pilot-actuated valve 1, control cover plate 2 and the valve body that is comprised of plug-in mounting assembly and integrated bulk 10.Pilot-actuated valve 1 is installed on the valve body by control cover plate 2.The plug-in mounting assembly comprises seal ring I 3, seal ring II 4, valve pocket 5, seal ring III 6, spring 7, spool 8 and seal ring IV 9.The bottom that spring 7 is contained in the spool 8 and with spool 8 inwalls and is slidingly matched, its upper and lower end is connected respectively control cover plate 2 and spool 8.Spool 8 is contained in the valve pocket 5 and with valve pocket 5 inwalls and is slidingly matched, and adds seal ring III 6 on the face that is slidingly matched of spool 8 and valve pocket 5.Seal ring I 3 is enclosed within valve pocket 5 tops, and seal ring II 4 and seal ring IV 9 are enclosed within respectively the top and bottom of valve pocket 5.The seal ring I 3 that is enclosed within valve pocket 5 tops contacts with the bottom surface extruding of control cover plate 2.Seal ring II 4 all contacts with the extruding of integrated bulk 10 inwalls with seal ring IV 9.

Embodiment 3: as shown in the figure, a kind of water hydraulic two-way plug-in valve comprises pilot-actuated valve 1, control cover plate 2 and the valve body that is comprised of plug-in mounting assembly and integrated bulk 10.Pilot-actuated valve 1 is installed on the valve body by control cover plate 2.The plug-in mounting assembly comprises seal ring I 3, seal ring II 4, valve pocket 5, seal ring III 6, spring 7, spool 8 and seal ring IV 9.The bottom that spring 7 is contained in the spool 8 and with spool 8 inwalls and is slidingly matched, its upper and lower end is connected respectively control cover plate 2 and spool 8.Spool 8 is contained in the valve pocket 5 and with valve pocket 5 inwalls and is slidingly matched, and adds seal ring III 6 on the face that is slidingly matched of spool 8 and valve pocket 5.Seal ring I 3 is enclosed within valve pocket 5 tops, and seal ring II 4 and seal ring IV 9 are enclosed within respectively the top and bottom of valve pocket 5.

Claims (5)

1. a water hydraulic two-way plug-in valve is characterized in that: comprise pilot-actuated valve (1), control cover plate (2) and the valve body that is comprised of plug-in mounting assembly and integrated bulk (10); Pilot-actuated valve (1) is installed on the valve body by control cover plate (2).
2. water hydraulic two-way plug-in valve according to claim 1, it is characterized in that: described plug-in mounting assembly comprises seal ring I (3), seal ring II (4), valve pocket (5), seal ring III (6), spring (7), spool (8) and seal ring IV (9); Spring (7) be contained in the spool (8) and with spool (8) bottom that inwall is slidingly matched, its upper and lower end is connected respectively control cover plate (2) and spool (8), spool (8) is contained in the valve pocket (5) and with valve pocket (5) inwall and is slidingly matched, add seal ring III (6) on the face that is slidingly matched of spool (8) and valve pocket (5), seal ring I (3) is enclosed within valve pocket (5) top, and seal ring II (4) and seal ring IV (9) are enclosed within respectively the top and bottom of valve pocket (5).
3. water hydraulic two-way plug-in valve according to claim 2 is characterized in that: the described seal ring I (3) that is enclosed within valve pocket (5) top contacts with the bottom surface extruding of control cover plate (2).
4. water hydraulic two-way plug-in valve according to claim 2 is characterized in that: described seal ring II (4) all contacts with the extruding of integrated bulk (10) inwall with seal ring IV (9).
5. water hydraulic two-way plug-in valve according to claim 2 is characterized in that: described spool (8) employing cone valve type structure.
CN 201220383257 2012-08-04 2012-08-04 Water hydraulic two-way cartridge valve CN202732524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220383257 CN202732524U (en) 2012-08-04 2012-08-04 Water hydraulic two-way cartridge valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220383257 CN202732524U (en) 2012-08-04 2012-08-04 Water hydraulic two-way cartridge valve

Publications (1)

Publication Number Publication Date
CN202732524U true CN202732524U (en) 2013-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220383257 CN202732524U (en) 2012-08-04 2012-08-04 Water hydraulic two-way cartridge valve

Country Status (1)

Country Link
CN (1) CN202732524U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104747794A (en) * 2014-07-28 2015-07-01 李国� Plug-in valve
CN104895857A (en) * 2015-04-18 2015-09-09 浙江大学 Low noise cone valve
CN105626936A (en) * 2016-02-24 2016-06-01 湖北仁创科技有限公司 Ultra-high-pressure anti-pollution type water hydraulic electro-hydraulic switch valve
CN106247003A (en) * 2016-07-26 2016-12-21 安徽理工大学 A kind of spool and valve pocket friction pair assembly and preparation method thereof
CN107202045A (en) * 2016-03-16 2017-09-26 建湖县威力液压机械制造有限公司 A kind of plug-in pilot control steering wheel special service valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104747794A (en) * 2014-07-28 2015-07-01 李国� Plug-in valve
CN104895857A (en) * 2015-04-18 2015-09-09 浙江大学 Low noise cone valve
CN105626936A (en) * 2016-02-24 2016-06-01 湖北仁创科技有限公司 Ultra-high-pressure anti-pollution type water hydraulic electro-hydraulic switch valve
CN107202045A (en) * 2016-03-16 2017-09-26 建湖县威力液压机械制造有限公司 A kind of plug-in pilot control steering wheel special service valve
CN106247003A (en) * 2016-07-26 2016-12-21 安徽理工大学 A kind of spool and valve pocket friction pair assembly and preparation method thereof
CN106247003B (en) * 2016-07-26 2018-06-26 安徽理工大学 A kind of spool and valve pocket friction subcomponent and preparation method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20150804