CN2767727Y - Big flow reversing valve - Google Patents
Big flow reversing valve Download PDFInfo
- Publication number
- CN2767727Y CN2767727Y CN 200520003642 CN200520003642U CN2767727Y CN 2767727 Y CN2767727 Y CN 2767727Y CN 200520003642 CN200520003642 CN 200520003642 CN 200520003642 U CN200520003642 U CN 200520003642U CN 2767727 Y CN2767727 Y CN 2767727Y
- Authority
- CN
- China
- Prior art keywords
- feed liquor
- liquid inlet
- sealing
- spool
- spring
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a large flow reversal valve which comprises a valve body, an end sleeve, a liquid return valve core, a control mechanism, a liquid inlet sealing device and a joint for the end sleeve, wherein a working chamber is arranged in the valve body. The utility model is characterized in that the liquid inlet sealing device is composed of a spring, a liquid inlet valve core, a liquid inlet valve seat, a sealing pad and a compression nut; the sealing pad can be embedded on the contract part of the liquid inlet valve core and a sealing surface of the liquid inlet valve seat and is fixed via the compression nut. One end of the spring is pushed against the liquid inlet valve core, and the top end of the other end is sheathed on a step inside the joint. The utility model which has the advantages of simple structure, reliable sealing performance and long service life can be used for a hydraulic support of a fully-mechanised longwall of a coal mine.
Description
One, affiliated technical field
The utility model relates to a kind of selector valve, refers in particular to a kind of high flow directional control valve that is used for the coal mine fully-mechanized mining working hydraulic support.
Two, background technique
In the colliery industry, also there is the people selector valve to be called " control valve " or " control valve ".Selector valve in the hydraulic support control system, control liquid flow path direction, the different actions such as realizing the hydraulic support lifting, pass, try to stop people from fighting each other, side guard plate is stretched receipts, receipts are stretched by sheet nation, its medium that uses is emulsified liquid (95% neutral water and 5% oil emulsion mixed solution).Because subsurface environment is very abominable, has a large amount of corrosive materials and coal dust, therefore the sealability to selector valve requires very high.But owing to be subjected to the restriction of seal form and air-proof condition, selector valve in the market all exists the some shortcomings part, is difficult to guarantee the down-hole usage requirement.If selector valve is disabled, will seriously influence the proper functioning of hydraulic support, cause working surface to stop production.
Three, model utility content
The purpose of this utility model is to provide a kind of high flow directional control valve, and it is simple in structure, and sealability is reliable, long service life.
For achieving the above object, the solution that the utility model is taked is: a kind of high flow directional control valve, it comprises valve body, end cover and back fluid spool, operating mechanism, feed liquor seal arrangement, end bell and spigot joint, has active chamber in the valve body, it is characterized in that the feed liquor seal arrangement is made up of spring, feed liquor spool and feed liquor valve seat, sealing gasket and clamping nut, the feed liquor spool can be fixed with feed liquor sealing surface of seat contacting point embedding sealing gasket and by clamping nut, step in spring one end jacking liquid spool, the other end top bell and spigot joint.
The utility model has adopted the sealing configuration of feed liquor spool and sealing gasket and feed liquor valve seat, and the design spring plays the pressure balance effect.When operating mechanism was positioned at the working position, back fluid spool moved, and promoted the feed liquor valve core movement, and feed liquor valve seat and sealing gasket are thrown off, and promptly sealing gasket leaves from the feed liquor sealing surface of seat, and highly pressurised liquid enters active chamber, realizes the exercises of hydraulic support.Feed liquor spool and back fluid spool sealing are reliable, and the feed liquor spool is replied by hydraulic coupling.By the sealing gasket sealing, make the overall structure of valve simple, easy to manufacture, volume is little, stable performance, long service life.During the displacement sealing gasket, it is just passable only to screw off clamping nut, easy to maintenance.
Four, description of drawings
Fig. 1 is the structural representation of present embodiment.
Among the figure: 1, deck, 2, steel wire, 3, spring, 4, the end bell and spigot joint, 5, the feed liquor spool, 6, clamping nut, 7, sealing gasket, 8, valve body, 9, the feed liquor valve seat, 10, return the liquid cover, 11, the end cover, 12, back fluid spool, 13, operating mechanism.
Five, embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.
Referring to Fig. 1, a kind of high flow directional control valve, it comprises valve body 8, end cover 11 and back fluid spool 12, operating mechanism 13, feed liquor seal arrangement, end bell and spigot joint 4, has active chamber in the valve body 8, it is characterized in that the feed liquor seal arrangement is made up of spring 3, feed liquor spool 5 and feed liquor valve seat 9, sealing gasket 7 and clamping nut 6, feed liquor spool 5 can be fixed steps in spring 3 one end jacking liquid spools 2, the other end top bell and spigot joint 4 with feed liquor valve seat 9 sealing surface contacting point embedding sealing gaskets 7 and by clamping nut 6.
Referring to Fig. 1, be embedded with steel wire 2 and be socketed with deck 1 outside the end bell and spigot joint 4.
Referring to Fig. 1, end cover 11 interior edge faces are provided with back liquid cover 10.
Present embodiment is the FHS320/31.5 high flow directional control valve, compare with selector valve with flow, simple in structure, cost is low, reliable performance, easy to operate, easy to maintenance, different actions such as can realizing the hydraulic support lifting, pass, put coal, side guard plate is stretched receipts, front-axle beam is stretched receipts, receipts are stretched by sheet nation adapt to the needs of fully-mechanized mining working surface hydraulic support.
Claims (3)
1, a kind of high flow directional control valve, it comprises valve body (8), end cover (11) and back fluid spool (12), operating mechanism (13), the feed liquor seal arrangement, end bell and spigot joint (4), valve body has active chamber in (8), it is characterized in that: the feed liquor seal arrangement is by spring (3), feed liquor spool (5) and feed liquor valve seat (9), sealing gasket (7) and clamping nut (6) are formed, feed liquor spool (2) can be fixed spring (3) one end jacking liquid spools (5) with feed liquor valve seat (9) sealing surface contacting point embedding sealing gasket (7) and by clamping nut (6), the interior step of the other end top bell and spigot joint (4).
2, a kind of high flow directional control valve according to claim 1 is characterized in that: end bell and spigot joint (4) is outer to be embedded with steel wire (2) and to be socketed with deck (1).
3, a kind of high flow directional control valve according to claim 1 is characterized in that: end cover (11) interior edge face is provided with back liquid cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520003642 CN2767727Y (en) | 2005-01-17 | 2005-01-17 | Big flow reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520003642 CN2767727Y (en) | 2005-01-17 | 2005-01-17 | Big flow reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2767727Y true CN2767727Y (en) | 2006-03-29 |
Family
ID=36681587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520003642 Expired - Fee Related CN2767727Y (en) | 2005-01-17 | 2005-01-17 | Big flow reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2767727Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322296A (en) * | 2011-08-22 | 2012-01-18 | 石家庄中煤装备制造股份有限公司 | Control valve and positively and negatively rotating motor |
| CN103291343A (en) * | 2013-06-25 | 2013-09-11 | 丰隆液压有限公司 | Insertion type hydraulic control one-way valve for suspended support |
| CN106051218A (en) * | 2016-07-11 | 2016-10-26 | 润琛液压机械南通有限公司 | Marine crane high-flow reversing valve |
| CN107542483A (en) * | 2017-10-24 | 2018-01-05 | 鸿大智能机械有限公司 | High flow directional control valve |
| CN108105191A (en) * | 2017-12-13 | 2018-06-01 | 北京天地玛珂电液控制系统有限公司 | Change-over valve core and manual-automatic integral reversal valve |
-
2005
- 2005-01-17 CN CN 200520003642 patent/CN2767727Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322296A (en) * | 2011-08-22 | 2012-01-18 | 石家庄中煤装备制造股份有限公司 | Control valve and positively and negatively rotating motor |
| CN103291343A (en) * | 2013-06-25 | 2013-09-11 | 丰隆液压有限公司 | Insertion type hydraulic control one-way valve for suspended support |
| CN106051218A (en) * | 2016-07-11 | 2016-10-26 | 润琛液压机械南通有限公司 | Marine crane high-flow reversing valve |
| CN106051218B (en) * | 2016-07-11 | 2018-07-27 | 润琛液压机械南通有限公司 | A kind of crane for ship high flow directional control valve |
| CN107542483A (en) * | 2017-10-24 | 2018-01-05 | 鸿大智能机械有限公司 | High flow directional control valve |
| CN108105191A (en) * | 2017-12-13 | 2018-06-01 | 北京天地玛珂电液控制系统有限公司 | Change-over valve core and manual-automatic integral reversal valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20100219 |