CN201184207Y - Main control valve of hydraulic support electrohydraulic control system - Google Patents
Main control valve of hydraulic support electrohydraulic control system Download PDFInfo
- Publication number
- CN201184207Y CN201184207Y CNU2008200328389U CN200820032838U CN201184207Y CN 201184207 Y CN201184207 Y CN 201184207Y CN U2008200328389 U CNU2008200328389 U CN U2008200328389U CN 200820032838 U CN200820032838 U CN 200820032838U CN 201184207 Y CN201184207 Y CN 201184207Y
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- China
- Prior art keywords
- valve
- main
- hydraulic support
- control system
- main control
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- 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 provides a main control valve of an electrohydraulic control system of a hydraulic support. The main control valve comprises a main valve and a solenoid pilot valve, wherein the main valve comprises a first plate valve, an intermediate plate valve, a joint valve and a tail plate valve which are respectively connected with the solenoid pilot valve; and a liquid inlet of the main valve is connected with a filter and a one-way valve. A valve plug of the solenoid pilot valve adopts ball face sealing; a valve plug of the main valve adopts end face sealing; the valve plug of the solenoid pilot valve is made of ceramics; and the main valve is made of 1Cr18Ni9. The main control valve has the advantages of convenient maintenance, good sealing performance and high valve plug strength. The main control valve completely meets the requirements of the electrohydraulic control system of the hydraulic support.
Description
Technical field
The utility model relates to a kind of Hydraulic Power Transmission System control valve, is specifically related to a kind of hydraulic support electrohydraulic control system main control valve.
Technical background
China is at the mid-80 hydraulic support electrohydraulic control technology that begins one's study, and the main control valve in the electrohydraulic control system is a technology emphasis wherein, and there are deficiencies such as poor sealing, maintenance inconvenience, spool insufficient strength in existing main control valve.
Summary of the invention
Goal of the invention: the utility model is in order to solve the deficiencies in the prior art, and a kind of good airproof performance, easy to maintenance, a kind of hydraulic support electrohydraulic control system main control valve that spool intensity is high are provided.
Technical scheme: a kind of hydraulic support electrohydraulic control system main control valve, comprise main valve and electromagnetic priority valve, described main valve comprises first plate valve, middle plate valve, connect valve and cauda valve, they are connected with described electromagnetic priority valve respectively, this is different from overall structure, can decide the sheet number of valve body according to the needs of support action, this structure is convenient to processing and maintenance, the inlet of main valve is connected with strainer and one way valve, strainer filters to prevent that foreign matter from entering in the main valve the emulsion that is provided, with the obstruction of avoiding pilot valve and main valve and with the stuck phenomenon of spool, one way valve plays a kind of damping action to pilot valve, reduce the impact force of high pressure, and after other valve work of main valve, play a kind of pressurize effect again.
Described electromagnetic priority valve preferably adopts ball face sealing, can moment open main valve or close main valve, makes it can adapt to the needs of hydraulic support electrohydraulic control system.
The spool of described main valve preferably adopts the end face envelope close, replaces in the past the radial seal of usefulness usually, can reach zero leakage, the more effective reliability that guarantees the support action.
The material that the spool of described electromagnetic priority valve adopts is preferably pottery, its feature be highly polished, abrasion resistance strong, Never-rusty, hardness height, toughness are strong, indeformable, improves pilot valve application life and times of exercise greatly.
The material that described main valve adopts is preferably 1Cr18Ni9, its non-corrosive, and corrosion resistance is strong, and diamagnetic performance is good, is more suitable for the down-hole and uses.
The utility model directly controlling two spools of main valve, and two each and every one spool delivery outlets of main valve is connecting the oil cylinder upper and lower cavity respectively under the effect of electromagnetic priority valve, after electromagnetic priority valve work, open the spool of main valve, make highly pressurised liquid enter oil cylinder after, promote stretching out or withdrawing of oil cylinder.The utility model is a composite member, and each group valve is being controlled the each several part action of hydraulic support respectively, lifting, translation, pushing and sliding, draws slide, stretch side guard board, stretch front-axle beam, balance, move frame etc., support can link under the control of computer program simultaneously, also can singly partly carry out.
Beneficial effect: the utility model processing and easy to maintenance, good seal performance, spool intensity height, satisfy the needs of hydraulic support electrohydraulic control system fully.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a main valve inlet schematic diagram of the present utility model;
Fig. 3 is an electromagnetic pilot valve seal schematic diagram of the present utility model;
Fig. 4 is a main valve sealing schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
Shown in Fig. 1,2,3 and 4, a kind of hydraulic support electrohydraulic control system main control valve, comprise main valve 1 and electromagnetic priority valve 2, described main valve 1 comprises first plate valve 3, middle plate valve 4, connects valve 5 and cauda valve 6, they are connected with described electromagnetic priority valve 2 respectively, and the inlet of main valve 1 is connected with strainer 7 and one way valve 8.The spool of described electromagnetic priority valve 2 adopts ball face sealing 9, and it is close 10 that the spool of described main valve 1 adopts end face to seal, and the material that the spool of described electromagnetic priority valve 2 adopts be a pottery, and the material of described main valve 1 employing is 1Cr18Ni9.
Claims (5)
1, a kind of hydraulic support electrohydraulic control system main control valve, comprise main valve (1) and electromagnetic priority valve (2), it is characterized in that: described main valve (1) comprises first plate valve (3), middle plate valve (4), connects valve (5) and cauda valve (6), they are connected with described electromagnetic priority valve (2) respectively, and the inlet of main valve (1) is connected with strainer (7) and one way valve (8).
2, hydraulic support electrohydraulic control system main control valve according to claim 1 is characterized in that: the spool of described electromagnetic priority valve (2) adopts ball face sealing (9).
3, hydraulic support electrohydraulic control system main control valve according to claim 1 is characterized in that: the spool of described main valve (1) adopts end face envelope close (10).
4, hydraulic support electrohydraulic control system main control valve according to claim 1 is characterized in that: the material that the spool of described electromagnetic priority valve (2) adopts is pottery.
5, hydraulic support electrohydraulic control system main control valve according to claim 1 is characterized in that: the material that described main valve (1) adopts is 1Cr18Ni9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200328389U CN201184207Y (en) | 2008-03-10 | 2008-03-10 | Main control valve of hydraulic support electrohydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200328389U CN201184207Y (en) | 2008-03-10 | 2008-03-10 | Main control valve of hydraulic support electrohydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184207Y true CN201184207Y (en) | 2009-01-21 |
Family
ID=40271947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200328389U Expired - Fee Related CN201184207Y (en) | 2008-03-10 | 2008-03-10 | Main control valve of hydraulic support electrohydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184207Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865317A (en) * | 2010-05-19 | 2010-10-20 | 煤炭科学研究总院太原研究院 | Electromagnetic unloading valve of emulsion pump station |
-
2008
- 2008-03-10 CN CNU2008200328389U patent/CN201184207Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865317A (en) * | 2010-05-19 | 2010-10-20 | 煤炭科学研究总院太原研究院 | Electromagnetic unloading valve of emulsion pump station |
| CN101865317B (en) * | 2010-05-19 | 2011-11-16 | 煤炭科学研究总院太原研究院 | Electromagnetic unloading valve of emulsion pump station |
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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: 20090121 Termination date: 20120310 |