CN102128037A - Plug-in mounting stand column hydraulic control one-way valve - Google Patents

Plug-in mounting stand column hydraulic control one-way valve Download PDF

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Publication number
CN102128037A
CN102128037A CN2011100884865A CN201110088486A CN102128037A CN 102128037 A CN102128037 A CN 102128037A CN 2011100884865 A CN2011100884865 A CN 2011100884865A CN 201110088486 A CN201110088486 A CN 201110088486A CN 102128037 A CN102128037 A CN 102128037A
Authority
CN
China
Prior art keywords
valve
plug
push rod
valve pocket
feed liquor
Prior art date
Application number
CN2011100884865A
Other languages
Chinese (zh)
Inventor
李福洪
朱述群
Original Assignee
巨隆集团芜湖兴隆液压有限公司
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 巨隆集团芜湖兴隆液压有限公司 filed Critical 巨隆集团芜湖兴隆液压有限公司
Priority to CN2011100884865A priority Critical patent/CN102128037A/en
Publication of CN102128037A publication Critical patent/CN102128037A/en

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Abstract

The invention discloses a plug-in mounting stand column hydraulic control one-way valve, which comprises a valve body, wherein a connector is arranged at one end of the valve body, and a threaded sleeve is arranged at the other end of the valve body; a threaded plug is arranged outside the threaded sleeve; a plug-in mounting hydraulic valve core component is arranged in the valve body, and comprises a liquid inlet valve sleeve, an ejector rod, a piston and a large spring; a large valve core and a small valve core are formed in the threaded sleeve; and a spring is arranged at the rear end of the small valve core. The hydraulic control one-way valve has a simple structure, high system integrated level and reliability and long service life, is easy to install and maintain, and is repaired directly, simply, conveniently and reliably by replacing plug-in mounting hydraulic valve core component.

Description

A kind of plug-in column hydraulic control one-way valve
Technical field
The present invention relates to column hydraulic control one-way valve field, be specially a kind ofly be used for, the plug-in column hydraulic control one-way valve of high seam coal mine hydraulic supporting hydraulic circuit.
Background technology
Since coal mine fully-mechanized mining begins, because the difference of various coal mining environment has had stricter requirement to hydraulic support and supporting equipment.Coal mining cause is in recent years progressively improving, the application of large-scale support more and more widely, as a producer that more than 30 year year hydraulic support valve knowhow is arranged, through independent development, released a good reliability, long service life, column hydraulic control one-way valve easy to maintenance, it has adopted guide's unloading way, can adapt to high pressure, the operating mode of big flow, each sealing contact surface all adopts the metal hard-sealing structure simultaneously, prolong application life greatly, this cover core assembly is realized the plug-in structure by the integrator that is threaded in addition, keeps in repair efficient and convenient.At present, domestic column control pilot operated valve device flow is little, hydraulic shock is big during off-load, each component and bulk life time to valve all can reduce, sealing surface adopts material sealings such as valve pad or polyformaldehyde, have tiny cinder unavoidably on the coal mine work area or other foreign matters enter in the hydraulic valve, when the pilot operated valve device opening and closing, having impurity is squeezed on the compressive seal, cause leakage, string liquid, adaptive capacity and application life are all not ideal enough, and traditional in addition valve group is combined by a lot of structural members, change seal and will dismantle a lot of parts, the very inconvenience in the down-hole, a lot of problems are perplexing the operate as normal production of underground hydraulic support frame.
Summary of the invention
The purpose of this invention is to provide a kind of plug-in column hydraulic control one-way valve, the problem of and maintenance difficult low with hydraulic shock height, application life and the adaptive capacity of the column hydraulic control one-way valve that solves prior art.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of plug-in column hydraulic control one-way valve, comprise the valve body of being with valve pocket, the valve pocket both ends open of described valve body, also have along the valve pocket both sides in the valve body perpendicular to valve pocket and the sap cavity that is communicated with valve pocket, valve pocket one end of described valve body is equipped with joint, the other end is equipped with swivel nut, described swivel nut outer end is equipped with screw plug, it is characterized in that: also be fitted with plug-in hydraulic valve core assembly in the valve pocket of described valve body, described plug-in hydraulic valve core assembly comprises the feed liquor valve pocket, described feed liquor valve pocket front port is aimed at described joint, feed liquor valve pocket rear port is aimed at described swivel nut, ring platform in the feed liquor valve sleeving inner wall also forms, having push rod to pass interior ring platform is slidingly mounted in the feed liquor valve pocket, described push rod is equipped with piston towards the rod end of feed liquor valve pocket front port, also be with big spring outside the push rod between piston and interior ring platform, described big spring one end is connected on the piston, encircle on the platform in the other end is connected, described push rod, the space that piston and feed liquor valve pocket surround constitutes push rod and replys the chamber, in the described swivel nut big valve core is installed, be slidingly fitted with small valve core in the described big valve core, the big valve core front end of described swivel nut is replaced and constitute hard sealing on feed liquor valve pocket rear port, small valve core front end in the big valve core is slidably replaced at the rod end of described push rod towards feed liquor valve pocket rear port, described small valve core rear end is equipped with spring, described spring one end is fixed on the small valve core rear end, and the spring other end is fixed on the swivel nut inwall.
Described a kind of plug-in column hydraulic control one-way valve, it is characterized in that: described piston is fixed on the push rod by shaft block ring, constitutes push rod component jointly with push rod.
During form of structure of the present invention is fit to, the column control of the large-scale support of high seam, comprise the valve body and the plug-in hydraulic valve core assembly of the flat seal of joint, compact conformation.In the plug-in hydraulic valve core assembly piston is arranged, piston is fixed on ring washer by axle and forms assembly on the push rod, push rod component is by big spring and feed liquor valve pocket integrator, form a push rod and reply the chamber, when controlled pressure liquid is closed when stopping, push rod is in time resetted, and the feed liquor valve pocket forms metal hard-sealing with the big valve core that contacts with it, and big valve core is inner simultaneously contacts with the small valve core of guide's off-load.The small valve core end forms pressure by spring and swivel nut and replys the chamber, closes working chamber timely, and the outer end of swivel nut is the screw plug of replaceable safety valve.
The present invention is simple in structure, level of integrated system is high, good reliability, long service life, is easy to installation and maintenance, directly repairs this column hydraulic control one-way valve by changing plug-in hydraulic valve core assembly, and is simple and convenient reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
As shown in Figure 1.During form of structure of the present invention is fit to, the column control of the large-scale support of high seam comprises the flat seal valve body 2 and the plug-in hydraulic valve core assembly of joint 1, compact conformation.In the plug-in hydraulic valve core assembly piston 3 is arranged, piston is fixed on the push rod 4 with ring washer by axle and forms assembly, push rod component is by big spring 5 and feed liquor valve pocket 6 integrators, form a push rod and reply the chamber, when controlled pressure liquid is closed when stopping, push rod 4 is in time resetted, and feed liquor valve pocket 6 forms metal hard-sealing with the big valve core 7 that contacts with it, and big valve core 7 inside contact with the small valve core 8 of guide's off-load simultaneously.The small valve core 8 terminal springs 9 that pass through form pressure answer chambeies with swivel nut 10, close working chamber timely, and the outer end of swivel nut is the screw plug 11 of replaceable safety valve.The present invention is simple in structure, level of integrated system is high, good reliability, long service life, is easy to installation and maintenance, directly repairs this column hydraulic control one-way valve by changing plug-in hydraulic valve core assembly, and is simple and convenient reliable.
Two working chamber structures are identical, its operating principle is as follows: the connected mode of this column hydraulic control one-way valve is: the A ' working hole shown in the figure dotted line passes through four bolt flat seals on column cavity of resorption interface, the PA mouth connects reversal valve work sap cavity, PA ' can receive and realize on the adjacent column hydraulic control one-way valve PA interface that Synchronization Control rises column, the relative work sap cavity of reversal valve that the PB termination is corresponding with PA, PB ' can receive adjacent column hydraulic control one-way valve PB interface realization Synchronization Control equally and fall column, and B ' interface connects the column epicoele.The A mouth connects pressure meter or pressure sensor, and the other end adds stifled or connects other work sap cavities.
When operating mode need be controlled column and rises, reversal valve connects the work sap cavity of PA interface and opens feed flow, high-pressure work liquid enters the PA mouth, open large and small spool, working solution enters the back and enters the column cavity of resorption by A ' flat seal mouth, column is risen, and when the PA end stopped feed flow, big small valve core formed the metal hard-sealing collateral with the feed liquor valve pocket and holds the working solution of column cavity of resorption and stablize constant under the pressure of back-moving spring.When operating mode need be controlled column and falls, reversal valve connects the work sap cavity of PB interface and opens feed flow, holding a high-pressure work liquid part that enters to enter the column epicoele by B ' mouth from PB descends column, another part makes piston motion open guide's small valve core earlier to carry out off-load, and then open big valve core and make column cavity of resorption liquid flow into the liquid back pipe road by PA, reach the stable post that falls, when PB end working solution stops feed flow, piston reset, big or small valve core reset make column keep steady working condition.Because cavity pressure is big under the column, cushioning effect has well been protected a whole set of hydraulic circuit, and has strengthened greatly the reliability and the life-span of valve.
Because hydraulic package of the present invention adopts the metal hard-sealing structure, improved the application life and the adaptive capacity of hydraulic control one-way valve greatly, guide's unloading way improves reliability, and the plug-in structure makes maintenance more convenient.

Claims (2)

1. plug-in column hydraulic control one-way valve, comprise the valve body of being with valve pocket, the valve pocket both ends open of described valve body, also have along the valve pocket both sides in the valve body perpendicular to valve pocket and the sap cavity that is communicated with valve pocket, valve pocket one end of described valve body is equipped with joint, the other end is equipped with swivel nut, described swivel nut outer end is equipped with screw plug, it is characterized in that: also be fitted with plug-in hydraulic valve core assembly in the valve pocket of described valve body, described plug-in hydraulic valve core assembly comprises the feed liquor valve pocket, described feed liquor valve pocket front port is aimed at described joint, feed liquor valve pocket rear port is aimed at described swivel nut, ring platform in the feed liquor valve sleeving inner wall also forms, having push rod to pass interior ring platform is slidingly mounted in the feed liquor valve pocket, described push rod is equipped with piston towards the rod end of feed liquor valve pocket front port, also be with big spring outside the push rod between piston and interior ring platform, described big spring one end is connected on the piston, encircle on the platform in the other end is connected, described push rod, the space that piston and feed liquor valve pocket surround constitutes push rod and replys the chamber, in the described swivel nut big valve core is installed, be slidingly fitted with small valve core in the described big valve core, the big valve core front end of described swivel nut is replaced and constitute hard sealing on feed liquor valve pocket rear port, small valve core front end in the big valve core is slidably replaced at the rod end of described push rod towards feed liquor valve pocket rear port, described small valve core rear end is equipped with spring, described spring one end is fixed on the small valve core rear end, and the spring other end is fixed on the swivel nut inwall.
2. a kind of plug-in column hydraulic control one-way valve according to claim 1, it is characterized in that: described piston is fixed on the push rod by shaft block ring, constitutes push rod component jointly with push rod.
CN2011100884865A 2011-04-08 2011-04-08 Plug-in mounting stand column hydraulic control one-way valve CN102128037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100884865A CN102128037A (en) 2011-04-08 2011-04-08 Plug-in mounting stand column hydraulic control one-way valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100884865A CN102128037A (en) 2011-04-08 2011-04-08 Plug-in mounting stand column hydraulic control one-way valve

Publications (1)

Publication Number Publication Date
CN102128037A true CN102128037A (en) 2011-07-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100884865A CN102128037A (en) 2011-04-08 2011-04-08 Plug-in mounting stand column hydraulic control one-way valve

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CN (1) CN102128037A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102364051A (en) * 2011-11-14 2012-02-29 巨隆集团芜湖兴隆液压有限公司 High-flow hydraulic control one-way valve
CN102364052A (en) * 2011-11-14 2012-02-29 巨隆集团芜湖兴隆液压有限公司 Tubular connected high-flow hydraulic control one-way valve
CN103836016A (en) * 2012-11-23 2014-06-04 上海立新液压有限公司 Electric hydraulic control check valve
CN104314805A (en) * 2014-09-22 2015-01-28 刘国利 Mine pump automatic unloading hydraulic control valve assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1828019A (en) * 2006-04-07 2006-09-06 郑州恒达液压工程中心 Two-stage unloading pilot-controlled check valve for hydraulic support pole
CN201043471Y (en) * 2007-04-30 2008-04-02 郑相辅 Pilot-operated check valve for hydraulic support of suspension upper beam
CN201396172Y (en) * 2009-04-26 2010-02-03 浙江丰隆液压元件有限公司 Plug-in type hydraulic control one-way valve
CN201982121U (en) * 2011-04-08 2011-09-21 巨隆集团芜湖兴隆液压有限公司 Plug-in type pillar hydraulic control one-way valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1828019A (en) * 2006-04-07 2006-09-06 郑州恒达液压工程中心 Two-stage unloading pilot-controlled check valve for hydraulic support pole
CN201043471Y (en) * 2007-04-30 2008-04-02 郑相辅 Pilot-operated check valve for hydraulic support of suspension upper beam
CN201396172Y (en) * 2009-04-26 2010-02-03 浙江丰隆液压元件有限公司 Plug-in type hydraulic control one-way valve
CN201982121U (en) * 2011-04-08 2011-09-21 巨隆集团芜湖兴隆液压有限公司 Plug-in type pillar hydraulic control one-way valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102364051A (en) * 2011-11-14 2012-02-29 巨隆集团芜湖兴隆液压有限公司 High-flow hydraulic control one-way valve
CN102364052A (en) * 2011-11-14 2012-02-29 巨隆集团芜湖兴隆液压有限公司 Tubular connected high-flow hydraulic control one-way valve
CN103836016A (en) * 2012-11-23 2014-06-04 上海立新液压有限公司 Electric hydraulic control check valve
CN104314805A (en) * 2014-09-22 2015-01-28 刘国利 Mine pump automatic unloading hydraulic control valve assembly

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Application publication date: 20110720

C02 Deemed withdrawal of patent application after publication (patent law 2001)