CN201636101U - Electro-hydraulic main control valve for intake stopping control - Google Patents
Electro-hydraulic main control valve for intake stopping control Download PDFInfo
- Publication number
- CN201636101U CN201636101U CN201020119933XU CN201020119933U CN201636101U CN 201636101 U CN201636101 U CN 201636101U CN 201020119933X U CN201020119933X U CN 201020119933XU CN 201020119933 U CN201020119933 U CN 201020119933U CN 201636101 U CN201636101 U CN 201636101U
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- main control
- valve
- way
- control valve
- main
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Abstract
The utility model relates to an electro-hydraulic main control valve for intake stopping control on a hydraulic support of coalmine support equipment, which belongs to the field of coalmine hydraulic drive. A plurality of two-position three-way main control valve cores are arranged in a main valve body of the electro-hydraulic main control valve, and a plurality of two-position three-way electromagnetic pilot valves connected with the two-position three-way main control valve cores are arranged in a pilot valve body. The main intake in the main valve body is controlled by a two-position three-way main control valve core, and a two-position three-way electromagnetic pilot valve in the pilot valve body is utilized to control the opening and closing of the main valve core. The intake of all of the rest main valve cores in the main valve body is controlled by the first main control valve core. The utility model reduces the leakage points of all the two-position three-way main control valve cores in the whole main control valve to one main control valve core, consequently, the internal leakage of the electro-hydraulic main control valve of the hydraulic support of a coalmine working face can be effectively reduced, the working pressure of a hydraulic system of the coalmine working face is stabilized, the effects of energy saving and consumption reduction are achieved as well, and thereby the problem of the internal leakage of the main control valve of the hydraulic support of the coalmine working face is solved.
Description
Technical field
The utility model relates to a kind of electric liquid main control valve that is used for support apparatus in coal mine hydraulic support feed liquor by control, belongs to the hydraulic pressure of the colliery transmission field.
Background technique
At present, known length along with coal mine work area constantly extends, the phenomenon of support apparatus hydraulic support ubiquity setting pressure deficiency, be because a large amount of leakage the in the inside of main control valve caused hydraulic system feed flow deficiency greatly, pressure decline causes, brings difficulty for the use of working surface hydraulic support and Maintenance of Hydraulic System management.
The model utility content
The purpose of this utility model is to provide a kind of electric liquid main control valve that is used for the feed liquor of coal mine hydraulic supporting by control, mainly solves the problem of the internal leakage of coal mine work area hydraulic support main control valve.
The technical solution of the utility model:
A kind of feed liquor is by the electric liquid main control valve of control, and this electricity liquid main control valve comprises main valve body and guide's valve body, is provided with a plurality of two-position three way main control core valves in the main valve body, is provided with a plurality of two-position three way electromagnetic priority valves that are connected with the two-position three way main control core valve in guide's valve body.
Described feed liquor is by the electric liquid main control valve of control, also be provided with oil-feed duct, oil return duct in the main valve body, two-way is divided in described oil-feed duct, one tunnel first two-position three way main control core valve that is connected in series, another road connects the import of two-position three way electromagnetic priority valve, be provided with the guide's filter and first one-way valve on the way in addition described, the return opening of two-position three way electromagnetic priority valve takes back the oilhole road, is provided with second one-way valve on described oil return duct.
In described a plurality of two-position three way main control core valve, first two-position three way main control core valve and one tunnel oil-feed duct are connected in series, and the oil outlet of all the other a plurality of two-position three way main control core valves and first two-position three way main control core valve is connected in parallel.
Described feed liquor is by the electric liquid main control valve of control, and in main valve body, main feed liquor is controlled the open and close of first two-position three way main control core valve by first two-position three way main control core valve control by a two-position three way electromagnetic priority valve; The feed liquor of all the other all two-position three way main control core valves is controlled by first two-position three way main control core valve in the main valve body.
Described feed liquor is by the electric liquid main control valve of control, and electric liquid main control valve is installed on the underground hydraulic support frame support apparatus.
The beneficial effects of the utility model:
1, the utility model is reduced to a two-position three way main control core valve with the leakage point of all two-position three way main control core valves in the whole electric liquid main control valve, can effectively reduce coal mine work area hydraulic support electricity liquid main control valve internal leakage, stablize the working pressure of coal mine work area hydraulic system.
2, the utility model has effectively reduced energy consumption.
3, the utility model has effectively reduced the coal mine work area hydraulic system because of the pressure that flow loss causes descends, and improves setting pressure.
4, the utility model has effectively reduced the fault point, has reduced the troubleshooting time, has prolonged working life.
Description of drawings
Fig. 1 is the schematic diagram of the utility model electricity liquid main control valve.
Among the figure, 1, main valve body; 2, guide's filter; 3, first one-way valve; 4, two-position three way main control core valve; 5, two-position three way electromagnetic priority valve; 6, guide's valve body; 7, second one-way valve.
Embodiment
Below in conjunction with drawings and Examples the utility model patent is further specified.
As shown in Figure 1, the utility model electricity liquid main control valve mainly comprises main valve body 1 and guide's valve body 6, be provided with the oil-feed duct in the main valve body 1, oil return duct and a plurality of (at least two) two-position three way main control core valve 4 etc., be provided with a plurality of two-position three way electromagnetic priority valves 5 (two-position three way main control core valve 4 is corresponding one by one with two-position three way electromagnetic priority valve 5) that connect with two-position three way main control core valve 4 in guide's valve body 6, two-way is divided in described oil-feed duct, one tunnel first two-position three way main control core valve 4 that is connected in series, another road connects the import of two-position three way electromagnetic priority valve 5, at the described guide's filter 2 and first one-way valve 3 of being provided with on the way in addition, the return opening of two-position three way electromagnetic priority valve 5 takes back the oilhole road, is provided with second one-way valve 7 on described oil return duct.
In the utility model, first two-position three way main control core valve 4 and one tunnel oil-feed duct are connected in series, and the oil outlet of all the other a plurality of two-position three way main control core valves and first two-position three way main control core valve 4 is connected in parallel.In main valve body 1, main feed liquor utilizes a two-position three way electromagnetic priority valve 5 to control the open and close of first two-position three way main control core valve 4 by first two-position three way main control core valve 4 controls.The feed liquor of all the other all two-position three way main control core valves is controlled by first two-position three way main control core valve 4 in the main valve body 1.
Hydraulic principle of the present utility model and working procedure are as follows:
Among the figure, P represents the pressure inlets of electric liquid main control valve, and R represents the return opening of electric liquid main control valve; After emulsified liquid pressure oil enters main control valve, at first enter first two-position three way main control core valve 4, and be cut off, make the two-position three way main control core valve 4 of these two-position three way main control core valve 4 back not have highly pressurised liquid, give two-position three way electromagnetic priority valve 5 energisings (if electric hydraulic control is then for electromagnet energising control, if manual operation valve is then directly controlled for handle), this two-position three way main control core valve 4 is opened, thereafter two-position three way main control core valve 4 is given and is pressed, and electric liquid main control valve can be realized normal action control; After the release, give the two-position three way electromagnetic priority valve 5 outages, electric liquid main control valve feed liquor is cut off, and the feed liquor of back electricity liquid main control valve is partly realized pressure release.
The utility model electricity liquid main control valve is installed on the underground hydraulic support frame support apparatus, can effectively reduces electric liquid main control valve and leak, reduce the flow loss of coal mine work area hydraulic system, the working pressure of stable system reduces the fault point, and reduces the troubleshooting time, can increase the service life, energy-saving and cost-reducing.
Claims (5)
1. a feed liquor is by the electric liquid main control valve of controlling, it is characterized in that: this electricity liquid main control valve comprises main valve body and guide's valve body, be provided with a plurality of two-position three way main control core valves in the main valve body, be provided with a plurality of two-position three way electromagnetic priority valves that are connected with the two-position three way main control core valve in guide's valve body.
2. according to the electric liquid main control valve of the described feed liquor of claim 1 by control, it is characterized in that: also be provided with oil-feed duct, oil return duct in the main valve body, two-way is divided in described oil-feed duct, one tunnel first two-position three way main control core valve that is connected in series, another road connects the import of two-position three way electromagnetic priority valve, be provided with the guide's filter and first one-way valve on the way in addition described, the return opening of two-position three way electromagnetic priority valve takes back the oilhole road, is provided with second one-way valve on described oil return duct.
3. according to the electric liquid main control valve of the described feed liquor of claim 1 by control, it is characterized in that: in described a plurality of two-position three way main control core valves, first two-position three way main control core valve and one tunnel oil-feed duct are connected in series, and the oil outlet of all the other a plurality of two-position three way main control core valves and first two-position three way main control core valve is connected in parallel.
4. according to the electric liquid main control valve of the described feed liquor of claim 1 by control, it is characterized in that: in main valve body, main feed liquor is controlled the open and close of first two-position three way main control core valve by first two-position three way main control core valve control by a two-position three way electromagnetic priority valve; The feed liquor of all the other all two-position three way main control core valves is controlled by first two-position three way main control core valve in the main valve body.
5. according to the electric liquid main control valve of the described feed liquor of claim 1 by control, it is characterized in that: electric liquid main control valve is installed on the underground hydraulic support frame support apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020119933XU CN201636101U (en) | 2010-02-26 | 2010-02-26 | Electro-hydraulic main control valve for intake stopping control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020119933XU CN201636101U (en) | 2010-02-26 | 2010-02-26 | Electro-hydraulic main control valve for intake stopping control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636101U true CN201636101U (en) | 2010-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020119933XU Expired - Fee Related CN201636101U (en) | 2010-02-26 | 2010-02-26 | Electro-hydraulic main control valve for intake stopping control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484778A (en) * | 2015-11-27 | 2016-04-13 | 太原科技大学 | Hydraulic support stand column energy-saving circuit and control method |
-
2010
- 2010-02-26 CN CN201020119933XU patent/CN201636101U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484778A (en) * | 2015-11-27 | 2016-04-13 | 太原科技大学 | Hydraulic support stand column energy-saving circuit and control method |
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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: 20101117 Termination date: 20120226 |