CN2705646Y - Guide liquid control change valve group - Google Patents
Guide liquid control change valve group Download PDFInfo
- Publication number
- CN2705646Y CN2705646Y CN 200320131816 CN200320131816U CN2705646Y CN 2705646 Y CN2705646 Y CN 2705646Y CN 200320131816 CN200320131816 CN 200320131816 CN 200320131816 U CN200320131816 U CN 200320131816U CN 2705646 Y CN2705646 Y CN 2705646Y
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- CN
- China
- Prior art keywords
- valve
- control valve
- guide
- pilot operated
- operated directional
- 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 - Lifetime
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Abstract
The utility model discloses a kind of guide's pilot operated directional control valve group, comprise guide's hydraulic control valve and pilot operated directional control valve, guide's hydraulic control valve is by operating mechanism, back fluid spool, the middle cauda valve body, liquid return valve jacket, Returnning spring, valve seat, main cylinder valve, case spring, the feed liquor valve pocket, the rapid pipe joint body constitutes, pilot operated directional control valve is by three joints, valve body, the feed liquor valve pocket, spring, back fluid spool, the tube valve, valve seat, the end cover constitutes, it is combined by described guide's hydraulic control valve and pilot operated directional control valve, and the master of guide's hydraulic control valve and pilot operated directional control valve advances back liquid interface and each active chamber interface all is to adopt rapid plug-in to connect.It can adapt to such as the coal-mining technique development wants the requirement of (high pressure) greatly to the valve for roof support flow, makes the pressure duct layout of hydraulic system have more practicability, science, Security and Economy.
Description
One, affiliated technical field
The utility model relates to valve, refers in particular to a kind of hydraulic system that is used for and can realize remotely-controlled valve.
Two, background technique
At present, guide's hydraulic control valve can not directly be controlled cylinder action because flow is little, also need increase by one group of pilot operated directional control valve group in addition when needing straight the control, but can't adapt to the requirement of the valve for roof support flow being wanted big (high pressure) such as the coal-mining technique development.If be applied to the pressure duct of hydraulic system by existing guide's hydraulic control valve and pilot operated directional control valve group, the pressure duct layout of hydraulic system is very complicated so, and is difficult to design the requirement that reaches practicability, science, Security and Economy.
Three, model utility content
Task of the present utility model is to provide a kind of guide's pilot operated directional control valve group, it can adapt to such as the coal-mining technique development wants the requirement of (high pressure) greatly to the valve for roof support flow, makes the pressure duct layout of hydraulic system have more practicability, science, Security and Economy.
For finishing above-mentioned task, the solution that the utility model is taked is: a kind of guide's pilot operated directional control valve group, comprise guide's hydraulic control valve and pilot operated directional control valve, guide's hydraulic control valve is by operating mechanism, back fluid spool, the middle cauda valve body, liquid return valve jacket, Returnning spring, valve seat, main cylinder valve, case spring, the feed liquor valve pocket, the rapid pipe joint body constitutes, pilot operated directional control valve is by three joints, valve body, the feed liquor valve pocket, spring, back fluid spool, the tube valve, valve seat, the end cover constitutes, it is combined by described guide's hydraulic control valve and pilot operated directional control valve, and the master of guide's hydraulic control valve and pilot operated directional control valve advances back liquid interface and each active chamber interface all is to adopt rapid plug-in to connect.
In the utility model, the function of guide's hydraulic control valve is to utilize pumping source liquid energy guide to control the commutation action of pilot operated directional control valve, and the function of pilot operated directional control valve is to control the every operating mode action of hydraulic support.Working medium of the present utility model is 95% neutral water: 5% emulsified liquid or machinery oil, two media are all available, and antiseptic property is good.The utility model is used for hydraulic system can realize distant control, can adapt to the coal-mining technique development and the valve for roof support flow be wanted the requirement of big (high pressure), can control coal mine hydraulic supporting and various industrial hydraulic equipment are carried out multi-cavity control, solve the problem of workman's handling safety under the work condition environment harsh conditions.It is specially adapted to thin seam working surface or big exploiting field, mining height coal seam and explosion-proof place under the coal mine, can realize the adjacent frame of hydraulic support or this control under the mine, the large hydraulic equipment that also can be used for Iron And Steel Plant, improved workman's working condition safety environment-guarantee degree greatly, alleviated working strength of workers, made the pressure duct layout of hydraulic system have more practicability, science, Security and Economy.
Four, description of drawings
Fig. 1 is the structural drawing of guide's hydraulic control valve in the utility model.
Fig. 2 is the structural drawing of pilot operated directional control valve in the utility model.
Fig. 3 is the plan view of embodiment one (A type).
Fig. 4 is the left view of a kind of guide's pilot operated directional control valve group shown in Figure 3.
Fig. 5 is the plan view of embodiment two (Type B).
Fig. 6 is the left view of a kind of guide's pilot operated directional control valve group shown in Figure 5.
Among the figure: 1, guide's hydraulic control valve, 2, pilot operated directional control valve; 1a, operating mechanism, 2a, back fluid spool, 3a, middle cauda valve body, 4a, liquid return valve jacket, 5a, Returnning spring, 6a, valve seat, 7a, main cylinder valve, 8a, case spring, 9a, feed liquor valve pocket, 10a, rapid pipe joint body, 11a, sealing gasket; 1b, joint, 2b, joint, 3b, joint, 4b, valve body, 5b, feed liquor valve pocket, 6b, spring, 7b, back fluid spool, 8b, tube valve, 9b, valve seat, 10b, end cover.
Five, embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.
Referring to Fig. 1-Fig. 6, a kind of guide's pilot operated directional control valve group, comprise guide's hydraulic control valve 1 and pilot operated directional control valve 2, guide's hydraulic control valve 1 is by operating mechanism 1a, back fluid spool 2a, middle cauda valve body 3a, liquid return valve jacket 4a, Returnning spring 5a, valve seat 6a, main cylinder valve 7a, case spring 8a, feed liquor valve pocket 9a, rapid pipe joint body 10a constitutes, pilot operated directional control valve 2 is by three joint 1b, 2b, 3b, valve body 4b, feed liquor valve pocket 5b, spring 6b, back fluid spool 7b, tube valve 8b, valve seat 9b, end cover 10b constitutes, it is combined by described guide's hydraulic control valve 1 and pilot operated directional control valve 2, and the master of guide's hydraulic control valve 1 and pilot operated directional control valve 2 advances back liquid interface and each active chamber interface all is to adopt rapid plug-in to connect.
The master of guide's hydraulic control valve 1 and pilot operated directional control valve 2 advances back liquid interface and each active chamber interface also can adopt scyewed joint.
Referring to Fig. 3 and Fig. 5, guide's hydraulic control valve 1 is a slice structure, need determine what of sheet number according to system.
Referring to Fig. 1, main cylinder valve 7a in guide's hydraulic control valve 1 has sealing cone, and valve seat 6a has inner conical surface, and the inner conical surface of the sealing cone of main cylinder valve 7a and valve seat 6a constitutes hard sealing, back fluid spool 2a has sealing gasket 11a, and sealing gasket 11a and main cylinder valve 7a end face constitute the semihard sealing.When being in the meta state, liquid entering hole is in closed condition, and liquid return hole is opened; Make liquid return hole close sealing earlier when depressing operating device 1a, opened liquid entering hole again, highly pressurised liquid just can flow to the control mouth of pilot operated directional control valve 2.
Referring to Fig. 2, sealing firmly between back fluid spool 7b in the pilot operated directional control valve 2 and the valve seat 9b, semihard sealing between tube valve 8b and the valve seat 9b.Liquid entering hole is in closed condition at ordinary times, after the liquid supercharging of control mouth from guide's hydraulic control valve 1, makes back fluid spool 7b motion close liquid return hole earlier, along with increased pressure, a valve 8b is moved open liquid entering hole again, makes working solution flow to working hole.
Claims (5)
1, a kind of guide's pilot operated directional control valve group, comprise guide's hydraulic control valve (1) and pilot operated directional control valve (2), guide's hydraulic control valve (1) is by operating mechanism (1a), back fluid spool (2a), middle cauda valve body (3a), liquid return valve jacket (4a), Returnning spring (5a), valve seat (6a), main cylinder valve (7a), case spring (8a), feed liquor valve pocket (9a), rapid pipe joint body (10a) constitutes, pilot operated directional control valve (2) is by three joint (1b, 2b, 3b), valve body (4b), feed liquor valve pocket (5b), spring (6b), back fluid spool (7b), tube valve (8b), valve seat (9b), end cover (10b) constitutes, it is characterized in that: it is combined by described guide's hydraulic control valve (1) and pilot operated directional control valve (2), and the master of guide's hydraulic control valve (1) and pilot operated directional control valve (2) advances back liquid interface and each active chamber interface all is to adopt rapid plug-in to connect.
2, a kind of guide's pilot operated directional control valve group according to claim 1 is characterized in that: the master of guide's hydraulic control valve (1) and pilot operated directional control valve (2) advances back liquid interface and each active chamber interface also can adopt scyewed joint.
3, a kind of guide's pilot operated directional control valve group according to claim 1 is characterized in that: described guide's hydraulic control valve (1) is a slice structure.
4, a kind of guide's pilot operated directional control valve group according to claim 1, it is characterized in that: the main cylinder valve (7a) in described guide's hydraulic control valve (1) has sealing cone, valve seat (6a) has inner conical surface, the inner conical surface of the sealing cone of main cylinder valve (7a) and valve seat (6a) constitutes hard sealing, back fluid spool (2a) has sealing gasket (11a), and sealing gasket (11a) constitutes the semihard sealing with main cylinder valve (7a) end face.
5, a kind of guide's pilot operated directional control valve group according to claim 1 is characterized in that: sealing firmly between back fluid spool (7b) in the described pilot operated directional control valve (2) and the valve seat (9b), semihard sealing between tube valve (8) b and the valve seat (9b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131816 CN2705646Y (en) | 2003-12-17 | 2003-12-17 | Guide liquid control change valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131816 CN2705646Y (en) | 2003-12-17 | 2003-12-17 | Guide liquid control change valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2705646Y true CN2705646Y (en) | 2005-06-22 |
Family
ID=34845486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320131816 Expired - Lifetime CN2705646Y (en) | 2003-12-17 | 2003-12-17 | Guide liquid control change valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2705646Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020093869A1 (en) * | 2018-11-09 | 2020-05-14 | 太原理工大学 | Water base proportional valve and control method thereof |
-
2003
- 2003-12-17 CN CN 200320131816 patent/CN2705646Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020093869A1 (en) * | 2018-11-09 | 2020-05-14 | 太原理工大学 | Water base proportional valve and control method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131217 Granted publication date: 20050622 |