CN102536275B - Manual reversing main operation valve for hydraulic support of thin seam - Google Patents
Manual reversing main operation valve for hydraulic support of thin seam Download PDFInfo
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- CN102536275B CN102536275B CN201210009188.7A CN201210009188A CN102536275B CN 102536275 B CN102536275 B CN 102536275B CN 201210009188 A CN201210009188 A CN 201210009188A CN 102536275 B CN102536275 B CN 102536275B
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- main operation
- hydraulic support
- manual reversing
- thin seam
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Abstract
The invention discloses a manual reversing main operation valve for a hydraulic support of a thin seam. The manual reversing main operation valve comprises two double-position three-way valves which are same in structure. Each double-position three-way valve comprises a valve body, and a valve core assembly is arranged in the valve body. Each valve core assembly comprises a valve base, a middle guide sleeve and a screw sleeve which are mounted in sequence. A spring, a spring base and a liquid inlet sealing ball are internally arranged in each valve base. A liquid returning sealing ball and an ejector rod are arranged inside each screw sleeve. A limiting rod is arranged inside a core hole of each middle guide sleeve. Each liquid inlet sealing ball and each liquid returning sealing ball are respectively abutted against the both ends of each limiting rod. Operation mechanisms are respectively arranged at the extending ends of the ejector rods of the two double-position three-way valves which are same in structure. The manual reversing main operation valve disclosed by the invention can be used as a main operation valve of the hydraulic support of the thin seam, and further has the advantages of small occupied space, good sealing property, long service life, high reliability and simplicity in operation.
Description
Technical field
The present invention relates to hydraulic prop equipment control valve under a kind of coal mine, relate in particular to a kind of Manual reversing main operation valve for hydraulic support of thin seam.
Background technology
Along with the continuous exploitation of colliery resource, the exploitation of girdle has become global problem.Girdle mining height is low, and personnel creep in work plane, and working space is little, and hydraulic support is limited by bulk, and the main control valve of support originally takes up space larger; And when maintenance of underground, narrow space is unfavorable for dismounting, compression is installed after dismounting and does not also ensure.
In prior art, the plug-in manual operation valve of use, occupies very large space, when being applied to Bracket in Thin Coal Seam, how to arrange that hydraulic system becomes a great problem in narrow space, even there will be the problem that does not have space to place main control valve; And the flat seal that the spacing middle cover that feed liquor valve port seal form is metal material and the feed liquor sealing mat of soft sealing material form is secondary, application life short, easy to wear, bad mechanical property, under the little condition in girdle space, should improve application life, reduce maintenance frequency.
Summary of the invention
The object of this invention is to provide a kind of take up room little, good seal, long service life, reliability is high, Manual reversing main operation valve for hydraulic support of thin seam simple to operate.
The object of the invention is to be achieved through the following technical solutions:
Manual reversing main operation valve for hydraulic support of thin seam of the present invention, comprises two two position three-way valves that structure is identical, and described two position three-way valve comprises valve body, in described valve body, is provided with core assembly;
Described core assembly comprises valve seat, middle guide pin bushing and the swivel nut that order is installed, in described valve seat, be provided with spring, spring base and feed liquor ball sealer, in described swivel nut, be provided with back liquid-tight blocking and push rod, in the middle of described, in the core hole of guide pin bushing, be provided with gag lever post, described feed liquor ball sealer and described time liquid-tight blocking are against respectively the two ends of described gag lever post;
Described two identical two position three-way valves of structure are provided with operating mechanism at the external part of its push rod.
As seen from the above technical solution provided by the invention, Manual reversing main operation valve for hydraulic support of thin seam provided by the invention, owing to comprising two two position three-way valves that structure is identical, two position three-way valve comprises valve body, is provided with core assembly in valve body; Core assembly comprises valve seat, middle guide pin bushing and the swivel nut that order is installed, in valve seat, be provided with spring, spring base and feed liquor ball sealer, in swivel nut, be provided with back liquid-tight blocking and push rod, in the core hole of middle guide pin bushing, be provided with gag lever post, feed liquor ball sealer and time liquid-tight blocking are against respectively the two ends of gag lever post; Two identical two position three-way valves of structure are provided with operating mechanism at the external part of its push rod.Can be as the main control valve of hydraulic support for low coal seam, little, the good seal of taking up room, long service life, reliability are high, simple to operate.
Accompanying drawing explanation
The structural representation of the Manual reversing main operation valve for hydraulic support of thin seam that Fig. 1 provides for the embodiment of the present invention.
In figure: 10,11,12,13,16 is seal.
The specific embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.
Manual reversing main operation valve for hydraulic support of thin seam of the present invention, preferably the specific embodiment is as shown in Figure 1 for it:
Comprise two two position three-way valves that structure is identical, described two position three-way valve comprises valve body 3, in described valve body 3, is provided with core assembly;
Described core assembly comprises valve seat 8, middle guide pin bushing 5 and the swivel nut 4 that order is installed, in described valve seat 8, be provided with spring 9, spring base 7 and feed liquor ball sealer 14-1, in described swivel nut 4, be provided with back liquid-tight blocking 14-2 and push rod 2, in the middle of described, in the core hole of guide pin bushing 5, be provided with gag lever post 6, described feed liquor ball sealer 14-1 and described time liquid-tight blocking 14-2 are against respectively the two ends of described gag lever post 6;
Described two identical two position three-way valves of structure are provided with operating mechanism 1 at the external part of its push rod 2.
Described swivel nut 4 has been opened an inlet opening 17 at the position coordinating with described push rod 2, and this inlet opening 17 communicates with admission chamber.
Described two two position three-way valves and operating mechanism 1 thereof link together by screw 15 and fluid proportion plate.
The material of described valve seat 8, spring 9, spring base 7, feed liquor ball sealer 14-1, time liquid-tight blocking 14-2, middle guide pin bushing 5 and push rod 2 is highly corrosion resistant high-strength stainless steel, and the material of described swivel nut 4 is copper.
The material of described gag lever post 6 is roller needle bearing steel.
It in the middle of described, between guide pin bushing 5 and described feed liquor ball sealer 14-1 and described time liquid-tight blocking 14-2, is hard sealing.
Manual reversing main operation valve for hydraulic support of thin seam of the present invention, little, the good seal of taking up room, long service life, reliability are high, simple to operate.
Specific embodiment:
Referring to Fig. 1, comprise the identical two position three-way valve of two structures and operating mechanism 1 and fluid proportion plate again; Described two position three-way valve comprises core assembly and valve body 3; Described core assembly comprises valve seat 8, spring 9, spring base 7, feed liquor ball sealer 14-1 and returns liquid-tight blocking 14-2, middle guide pin bushing 5, gag lever post 6, push rod 2, swivel nut 4 etc.; Described two position three-way valve group links together operating mechanism 1 and fluid proportion plate by 2 M8 screws 15, forms manual reverse of direction operating valve.Feed liquor ball sealer 14-1 and time liquid-tight blocking 14-2 adopt high precision dense blocking, have both reduced difficulty of processing, can guarantee that again the high accuracy of valve ball and middle valve pocket coordinates requirement, have also improved application life, have improved reliability; Structural member of the present invention is except swivel nut 4 use copper simultaneously, and all the other all adopt highly corrosion resistant high-strength stainless steel, meet safety of coal mines standard, adapts to the severe media environment in down-hole; Simultaneously operational torque of the present invention reduces, and has opened an inlet opening communicate with admission chamber in push rod 2 and swivel nut 4 cooperation places, makes to operate easier.Described gag lever post 6 is roller needle bearing steel, not flexible; It in the middle of described, between guide pin bushing 5 and feed liquor ball sealer 14-1 and time liquid-tight blocking 14-2, is hard sealing.
The operating principle of specific embodiment is:
This two position three way directional control valve comprises two high precision dense blocking, and middle guide pin bushing 5 adopts hard stainless steel material.When in original state, in the middle of feed liquor ball sealer 14-1 makes under the effect of spring 9, guide pin bushing 5 cuts out, and working chamber and back to the fluid chamber are communicated.When manipulation mechanism 1, stressed liquid-tight blocking 14-2 and the middle guide pin bushing of making back of push rod 2 seals, and by gag lever post, transmits force compresses spring 9, and admission chamber and working chamber are communicated, and cut off working chamber and back to the fluid chamber simultaneously.When operation stops, because spring 9 active forces are large, valve automatically resets, and guide pin bushing 5 in the middle of feed liquor ball sealer 14-1 closes returns liquid-tight blocking 14-2 and opens middle guide pin bushing 5.
The beneficial effect that specific embodiment brings is:
Take up room little, the size of 54cm * 48cm * 32cm is compared original main control valve 135cm * 118cm * 43cm and has nearly been dwindled 2/3rds, and the person that makes Design of Powered Supports designs support and arranges that hydraulic system need not consider the problem of putting of main control valve substantially again; This manual reverse of direction control valve is convenient to dismounting and maintenance; Operational torque is little, makes operation more simply laborsaving; Adopt high precision dense blocking firmly to seal, make processing technology simple, the better and long service life of sealing performance.
The above; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1. a Manual reversing main operation valve for hydraulic support of thin seam, is characterized in that, comprises two two position three-way valves that structure is identical, and described two position three-way valve comprises valve body (3), and described valve body is provided with core assembly in (3);
Described core assembly comprises valve seat (8), middle guide pin bushing (5) and the swivel nut (4) that order is installed, in described valve seat (8), be provided with spring (9), spring base (7) and feed liquor ball sealer (14-1), in described swivel nut (4), be provided with back liquid-tight blocking (14-2) and push rod (2), in the middle of described, in the core hole of guide pin bushing (5), be provided with gag lever post (6), described feed liquor ball sealer (14-1) and described time liquid-tight blocking (14-2) are against respectively the two ends of described gag lever post (6);
Described two identical two position three-way valves of structure are provided with operating mechanism (1) at the external part of its push rod (2);
Described swivel nut (4) has been opened an inlet opening (17) at the position coordinating with described push rod (2), and this inlet opening (17) communicates with admission chamber.
2. Manual reversing main operation valve for hydraulic support of thin seam according to claim 1, is characterized in that, described two two position three-way valves and operating mechanism (1) thereof link together by screw (15) and fluid proportion plate.
3. Manual reversing main operation valve for hydraulic support of thin seam according to claim 1 and 2, it is characterized in that, the material of described valve seat (8), spring (9), spring base (7), feed liquor ball sealer (14-1), time liquid-tight blocking (14-2), middle guide pin bushing (5) and push rod (2) is highly corrosion resistant high-strength stainless steel, and the material of described swivel nut (4) is copper.
4. Manual reversing main operation valve for hydraulic support of thin seam according to claim 3, is characterized in that, the material of described gag lever post (6) is roller needle bearing steel.
5. Manual reversing main operation valve for hydraulic support of thin seam according to claim 3, is characterized in that, between described middle guide pin bushing (5) and described feed liquor ball sealer (14-1) and described time liquid-tight blocking (14-2), is hard sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009188.7A CN102536275B (en) | 2012-01-12 | 2012-01-12 | Manual reversing main operation valve for hydraulic support of thin seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009188.7A CN102536275B (en) | 2012-01-12 | 2012-01-12 | Manual reversing main operation valve for hydraulic support of thin seam |
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| Publication Number | Publication Date |
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| CN102536275A CN102536275A (en) | 2012-07-04 |
| CN102536275B true CN102536275B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210009188.7A Active CN102536275B (en) | 2012-01-12 | 2012-01-12 | Manual reversing main operation valve for hydraulic support of thin seam |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266042Y (en) * | 1996-02-28 | 1997-10-29 | 瑞安南方煤矿机械厂 | Hydraulic chock running valve |
| US6073654A (en) * | 1998-03-28 | 2000-06-13 | Dbt Deutsche Bergbau-Technik Gmbh | Hydraulically trippable check valve for underground mine support hydraulics |
| RU2190766C2 (en) * | 2000-12-26 | 2002-10-10 | Открытое акционерное общество "Кран-Узловский машиностроительный завод им. И.И.Федунца" | Hydraulic distributor of powered mine support |
| CN200943503Y (en) * | 2006-06-02 | 2007-09-05 | 姜风 | Change-over valve with liquid return opening possessing one-way flow function |
| CN201521308U (en) * | 2009-10-22 | 2010-07-07 | 郑州煤机液压电控有限公司 | High flow capacity insertion type manual direction-changing valve for hydraulic supporting frame |
| CN201982119U (en) * | 2010-12-13 | 2011-09-21 | 中国航天科技集团公司烽火机械厂 | Static pressure balanced electromagnetic pilot valve |
| CN202417539U (en) * | 2012-01-12 | 2012-09-05 | 中煤北京煤矿机械有限责任公司 | Hand reversing main control valve for thin seam hydraulic support |
-
2012
- 2012-01-12 CN CN201210009188.7A patent/CN102536275B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266042Y (en) * | 1996-02-28 | 1997-10-29 | 瑞安南方煤矿机械厂 | Hydraulic chock running valve |
| US6073654A (en) * | 1998-03-28 | 2000-06-13 | Dbt Deutsche Bergbau-Technik Gmbh | Hydraulically trippable check valve for underground mine support hydraulics |
| RU2190766C2 (en) * | 2000-12-26 | 2002-10-10 | Открытое акционерное общество "Кран-Узловский машиностроительный завод им. И.И.Федунца" | Hydraulic distributor of powered mine support |
| CN200943503Y (en) * | 2006-06-02 | 2007-09-05 | 姜风 | Change-over valve with liquid return opening possessing one-way flow function |
| CN201521308U (en) * | 2009-10-22 | 2010-07-07 | 郑州煤机液压电控有限公司 | High flow capacity insertion type manual direction-changing valve for hydraulic supporting frame |
| CN201982119U (en) * | 2010-12-13 | 2011-09-21 | 中国航天科技集团公司烽火机械厂 | Static pressure balanced electromagnetic pilot valve |
| CN202417539U (en) * | 2012-01-12 | 2012-09-05 | 中煤北京煤矿机械有限责任公司 | Hand reversing main control valve for thin seam hydraulic support |
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| CN102536275A (en) | 2012-07-04 |
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