CN2906159Y - Electrohydraulic unloading valve with hydraulic control and electrohydraulic control operation modes - Google Patents
Electrohydraulic unloading valve with hydraulic control and electrohydraulic control operation modes Download PDFInfo
- Publication number
- CN2906159Y CN2906159Y CN 200620069278 CN200620069278U CN2906159Y CN 2906159 Y CN2906159 Y CN 2906159Y CN 200620069278 CN200620069278 CN 200620069278 CN 200620069278 U CN200620069278 U CN 200620069278U CN 2906159 Y CN2906159 Y CN 2906159Y
- Authority
- CN
- China
- Prior art keywords
- liquid
- valve
- valve body
- liquid road
- communicates
- 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
Links
- 239000007788 liquid Substances 0.000 claims abstract description 129
- 238000000034 method Methods 0.000 claims description 25
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 20
- 210000003746 feather Anatomy 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 abstract description 13
- 238000005065 mining Methods 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to an electrohydraulic unloading valve with hydraulic control and electrohydraulic control operation modes which mainly comprises a main valve body, a leading valve and a filter, wherein a single-way valve group, a main valve group and a thrust piston are provided on the main valve body, still an accumulator connector, a high-pressure liquid outlet connector, an unload return liquid connector and an electromagnetic valve are provided, a hydraulic/electrohydraulic shifting valve which is communicated with the flow path of the leading valve body is provided at the bottom of the leading valve body. An emulsion pump supplies high-pressure emulsified liquid to the bracket through the valve when the bracket of the mining face needs liquid, and the emulsion pump is unloaded when the bracket of the mining face stops working. The two control modes can operate separately, can be adopted in a full-mechanized mining face with intelligent unmanned monitoring system or in a normal full-mechanized mining face, so as to enlarge the serviceable range of the appliance. The operation model can be shifted to hydraulic control mode when the electrohydraulic control mode fails, so as to improve the reliability of the appliance. The structure is compact and simple, it is simple to operate and convenient to use, and has a wide applicability.
Description
One, technical field
The utility model relate to have hydraulic control, the electric liquid feather valve of two kinds of working methods of electric hydraulic control, the intelligent monitoring that is particularly useful for the coal mine fully-mechanized mining working emulsion pump unloads automatically.
Two, background technique
At present homemade emulsion power pack is not owing to be equipped with intelligent monitor system, it is crucial on the emulsion pump that pressure control valve---feather valve all adopts the hydraulic control working method, there is not electric hydraulic control working method, and the automation that will realize the emulsion power pack hydraulic system is controlled, the feather valve that must have hydraulic control, two kinds of working methods of electric hydraulic control---electric liquid feather valve, therefore designing a kind of electric liquid feather valve with hydraulic control, two kinds of working methods of electric hydraulic control is a problem anxious to be solved, also is the needs that coal mine fully-mechanized mining working is realized intelligent monitoring.
Three, summary of the invention
Technical problem: the purpose of this utility model provides a kind of compact structure, reliable performance, has hydraulic control, the electric liquid feather valve of two kinds of working methods of electric hydraulic control.
Technological scheme: the utlity model has hydraulic control, the electric liquid feather valve of two kinds of working methods of electricity hydraulic control, it is mainly by main valve body, pilot valve that is connected with main valve body and filter constitute, be provided with sequential combination one-way valve group together in the main valve body, main valve group and thrust piston, and be provided with the liquid entering hole that communicates with each valve group liquid road, high press juice chamber and unload back sap cavity, main valve body one side is provided with the accumulator joint that communicates with the high press juice of one-way valve group chamber, another side top is provided with the high press juice joint that communicates with high press juice chamber, and the below is provided with and unloads back the unloading that sap cavity communicates and return the liquid joint; Be respectively equipped with a plurality of control liquid road that is interconnected on main valve body and the guide's valve body, the outside of guide's valve body is provided with feed liquor liquid road A and the fluid liquid road G that communicates with filter respectively, opposite side is provided with solenoid valve, guide's valve body bottom is provided with electric liquid switching valve, and electric liquid switching valve is provided with and four S that the liquid road is corresponding in guide's valve body bottom
1, B
1, A
1, P
1Four liquid roads; Filter is located at the side-lower of guide's valve body.
The utlity model has the electric liquid feather valve of hydraulic control, two kinds of working methods of electric hydraulic control, described electric liquid switching valve is two four-way switching valves, it is formed by push rod I, steel ball I, valve seat I, push rod II, valve seat II, steel ball II and spring sequential combination, and its termination is provided with switches screw and by the end cap of screw; A plurality of control liquid road that described main valve body and guide's valve body are interconnected is respectively S, B, P, K, L liquid road, and top, S liquid road communicates bottom and S with high press juice chamber
1Communicate; B liquid road and B
1The liquid road communicates; P liquid road communicates with K, A liquid road; G liquid road and P
1The liquid road communicates; A
1The liquid road communicates with solenoid valve feed liquor liquid road; The liquid liquid road of returning of solenoid valve communicates with L liquid road; The top on L liquid road with unload back sap cavity and communicate.
Technique effect: the electric liquid feather valve that the utlity model has hydraulic control, two kinds of working methods of electric hydraulic control, the intelligent monitoring that is best suited for the coal mine fully-mechanized mining working emulsion pump unloads automatically, employing is provided with one-way valve group, main valve group, thrust piston, guide's valve body, solenoid valve, two four-way switching valves, filter and pilot valve groups on main valve body, no matter be in hydraulic control or under electric hydraulic control working method, can both realize: 1. when force piece was used liquid, emulsion pump can be carried high-pressure emulsion to support by this valve; 2. when force piece quits work, realize two kinds of functions of emulsion pump unloading operation.The independent operating of two kinds of control modes can make emulsion pump use at the fully mechanized mining face of being furnished with intelligent no worker monitor system, also can use at common fully mechanized mining face, enlarge the using scope of equipment; When electric hydraulic control mode breaks down, can also switch under the hydraulic control mode and work simultaneously, improve the reliability of equipment.Two kinds of working methods can be switched easily by two four-way switching valves.Install rationally each component position, and each controls the communication on liquid road, and all at main valve body, guide's valve inner, its compact structure, succinct, simple to operate, easy to use has improved the operational reliability of equipment greatly and selected scope for use, has practicability widely.
Four, description of drawings
Fig. 1 is the utility model structural front view.
Fig. 2 is the utility model structure side view.
Fig. 3 is the A-A sectional view of Fig. 1.
Among the figure: 1 one-way valve group, 2 main valve bodies, 3 accumulator joints, 4 high press juice joints, 5 unload back the liquid joint, 6 solenoid valves, 7 main valve groups, 8 thrust pistons, 9 switching valves, 10 filters, 11 guide's valve bodies, 12 guide's spools, 13 pressure adjusting springs, 14 pressure regulation screw plugs, 15 switch screw, 16 push rod I, 17 steel ball I, 18 valve seat I, 19 push rod II, 20 valve seat II, 21 steel ball II, 22 springs, 23 piston copper sheathings, 24 end caps, 25 high press juice chambeies, 26 liquid entering holes, 27 unload back sap cavity.
Five, embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The utlity model has the electric liquid feather valve of hydraulic control, two kinds of working methods of electric hydraulic control, it mainly is made of main valve body 2, pilot valve 11 and filter 10, two groups of one-way valve groups 1, main valve group 7, thrust piston 8 have been installed in the main valve body 2 side by side, and be provided with the liquid entering hole 26 that communicates with each valve group liquid road, accumulator joint 3 is installed on main valve body 2 ends, communicate with high press juice chamber 25, two high press juice joints 4 are installed on the top of main valve body 2, unload back liquid joint 5 and are installed on main valve body 2 belows; Return sap cavity 27 with feather valve and communicate, guide's valve body 11 is installed on another end face of main valve body 2, and guide's spool 12, piston copper sheathing 23 are installed on guide's valve body 1 inside, and pressure adjusting spring 13, pressure regulation screw plug 14 are installed on the top of guide's spool 12.Filter 10 is installed in guide's valve body 11 1 side-lowers, and it is A that guide's valve body 11 is provided with the feed liquor liquid road that communicates with filter 10 respectively, and fluid liquid road is G; The opposite side of guide's valve body 11 is equipped with solenoid valve 6, and two four-way switching valves 9 are equipped with in the bottom.Switching screw 15, push rod I16, steel ball I17, valve seat I18, push rod II19, valve seat II20, steel ball II21, spring 22 are housed in the inside of two four-way switching valves 9, and the end is equipped with 24, two four-ways electricity of end cap liquid switching valve, 9 tops and is provided with S successively
1, B
1, A
1, P
1Four liquid roads, corresponding with four liquid roads, guide's valve body 11 bottoms.Also have S, B, P, K, L control liquid road on main valve body 2, guide's valve body 11, top, S liquid road communicates bottom and S with high press juice chamber
1Communicate; B liquid road and B
1The liquid road communicates; P liquid road communicates with K, A liquid road; G liquid road and P
1The liquid road communicates; A
1The liquid road communicates with solenoid valve 6 feed liquor liquid roads; The liquid liquid road of returning of solenoid valve 6 communicates with L liquid road; The top on L liquid road with unload back sap cavity and communicate.Can finish two kinds of separate working methods by electric liquid switching valve 9, only need open end cap 24, adjust the position of switching screw 15 and can realize that convenient and swift, two kinds of working procedure are as follows:
1) hydraulic control working method: open end cap 24, tighten and switch screw 15, push rod I16, steel ball I17, push rod II19, steel ball II21 are moved to the left, and steel ball I17 and valve seat I18 valve face are closed A
1With P
1The liquid road disconnects; Steel ball II21 and valve seat II20 valve face are opened S
1With B
1The liquid road communicates, on the electric liquid feather valve in the hydraulic control liquid road flow direction by S → S
1→ B
1→ B, S communicates with B, and guide's spool 12 works, and electric hydraulic control liquid road flow direction is by P → A → G → P
1, disconnecting afterwards, solenoid valve 6 is ineffective, thus electric hydraulic control working method lost efficacy, and the hydraulic control working method works.When support was used liquid, highly pressurised liquid was washed one-way valve group 1 open, by high press juice joint 4 to the support feed flow; When support stops to use liquid, high press juice chamber fluid pressure is that piston copper sheathing 23 suffered pressure rise to the feather valve set pressure rapidly, under the action of hydraulic force that makes progress, overcome the downward active force of spring 13, guide's spool 11 is opened, and thrust piston 8 cavity of resorptions and K liquid road and the road conducting of L liquid cause thrust piston 8 cavity of resorptions to lose pressure rapidly, main valve group 7 is opened rapidly, realizes the unloading operation of emulsion pump; When support makes the pressure in high press juice chamber be reduced to hydraulic coupling that piston copper sheathing 23 makes progress when not overcoming the downward active force of spring 13 with liquid or pipeline leakage once more, guide's spool 12 is closed, the liquid on P liquid road arrives thrust piston 8 cavity of resorptions through K liquid road, main valve group 7 is closed, one-way valve group 1 is opened, and recovers immediately to the support feed flow.Adjust pressure regulation screw plug 14 and promptly adjust the precompression of spring 13, can adjust the set pressure of feather valve.
2) electric hydraulic control working method: open end cap 24, unscrew and switch screw 15, under hydraulic coupling and spring 22 elastic force effects, push rod I16, steel ball I17, push rod II19, steel ball II21 move right, and steel ball I17 and valve seat I18 valve face are opened, liquid road A
1, P
1Conducting, steel ball II21 and valve seat II20 valve face are closed S
1With B
1The liquid road disconnects, and the hydraulic coupling at S place, hydraulic control liquid road can not arrive B liquid road, also is that piston copper sheathing 23 loses hydraulic coupling upwards, makes guide's spool 12 be in closed condition all the time, i.e. hydraulic control mode lost efficacy, and electric hydraulic control liquid route P → A → G → P
1→ A
1→ solenoid valve 6, solenoid valve 6 works, and realizes electric hydraulic control working method.When support was used liquid, solenoid valve 6 cut out, and electrichydraulic control liquid road disconnects after solenoid valve 6, and thrust piston 8 cavity of resorptions are pressed by P, K liquid road, under action of hydraulic force, main valve group 7 was closed; When support stopped to use liquid, high press juice cavity pressure rose to default working pressure (setting in the intelligent monitor system) rapidly, after intelligent monitor system detects this pressure signal, send instruction rapidly, make solenoid valve 6 actions, solenoid valve 6 is opened, and electrichydraulic control liquid road liquid is by P → A → G → P
1→ A
1→ solenoid valve 6 → L → unload back sap cavity, electrichydraulic control liquid road decompression makes thrust piston 8 cavity of resorptions and liquid road K lose hydraulic coupling rapidly, main valve group 7 is opened rapidly, realizes emulsion pump unloading operation; When support causes high press juice cavity pressure to drop to certain value with liquid or system leak once more (setting in the intelligent monitor system), after intelligent monitor system detects this pressure, send signal immediately, make solenoid valve 6 actions, solenoid valve 6 cuts out once more, and electric hydraulic control liquid road is disconnected once more at solenoid valve 6 places, P liquid road liquid arrives thrust piston 8 cavity of resorptions through K liquid road, main valve group 7 is closed, and one-way valve group 1 is opened, and recovers immediately to the support feed flow.
Claims (3)
1. one kind has hydraulic control, the electric liquid feather valve of two kinds of working methods of electricity hydraulic control, it is characterized in that: it is mainly by main valve body (2), pilot valve (11) that is connected with main valve body (2) and filter (10) constitute, be provided with sequential combination one-way valve group (1) together in the main valve body (2), main valve group (7) and thrust piston (8), and be provided with the liquid entering hole (26) that communicates with each valve group liquid road, high press juice chamber (25) and unload back sap cavity (27), main valve body (2) one sides are provided with the accumulator joint (3) that communicates with one-way valve group (1) high press juice chamber (25), another side top is provided with the high press juice joint (4) that communicates with high press juice chamber (25), and the below is provided with and unloads back the unloading that sap cavity (27) communicates and return liquid joint (5); Be respectively equipped with a plurality of control liquid road that is interconnected on main valve body (2) and the guide's valve body (11), the outside of guide's valve body (11) is provided with feed liquor liquid road A and the fluid liquid road G that communicates with filter (10) respectively, opposite side is provided with solenoid valve (6), guide's valve body (11) bottom is provided with electric liquid switching valve (9), and electric liquid switching valve (9) is provided with and four S that the liquid road is corresponding in guide's valve body (11) bottom
1, B
1, A
1, P
1Four liquid roads; Filter (10) is located at the side-lower of guide's valve body (11).
2. the electric liquid feather valve with hydraulic control, two kinds of working methods of electric hydraulic control according to claim 1, it is characterized in that: described electric liquid switching valve (9) is two four-way switching valves, it is made up of push rod I (16), steel ball I (17), valve seat I (18), push rod II (19), valve seat II (20), steel ball II (21) and spring (22) order, and its termination is provided with switching screw (15) and by the end cap (24) of screw.
3. the electric liquid feather valve with hydraulic control, two kinds of working methods of electric hydraulic control according to claim 1 and 2, it is characterized in that: a plurality of control liquid road that described main valve body (2) and guide's valve body (11) are interconnected is respectively S, B, P, K, L liquid road, top, S liquid road communicates with high press juice chamber (25), the S of bottom and electric liquid switching valve (9)
1The liquid road communicates; B liquid road and B
1The liquid road communicates; P liquid road communicates with K, A liquid road; G liquid road and P
1The liquid road communicates; A
1The liquid road communicates with solenoid valve (6) feed liquor liquid road; The liquid liquid road of returning of solenoid valve (6) communicates with L liquid road; The top on L liquid road with unload back sap cavity (27) and communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069278 CN2906159Y (en) | 2006-02-11 | 2006-02-11 | Electrohydraulic unloading valve with hydraulic control and electrohydraulic control operation modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069278 CN2906159Y (en) | 2006-02-11 | 2006-02-11 | Electrohydraulic unloading valve with hydraulic control and electrohydraulic control operation modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906159Y true CN2906159Y (en) | 2007-05-30 |
Family
ID=38114793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620069278 Expired - Lifetime CN2906159Y (en) | 2006-02-11 | 2006-02-11 | Electrohydraulic unloading valve with hydraulic control and electrohydraulic control operation modes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906159Y (en) |
Cited By (3)
| 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 |
| CN102777663A (en) * | 2012-07-13 | 2012-11-14 | 北京天地玛珂电液控制系统有限公司 | Electro-mechanical dual control pilot valve for unloading valve |
| CN102852786A (en) * | 2012-09-29 | 2013-01-02 | 凯盛重工有限公司 | Liquid sucking valve for emulsion pump |
-
2006
- 2006-02-11 CN CN 200620069278 patent/CN2906159Y/en not_active Expired - Lifetime
Cited By (6)
| 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 |
| CN102777663A (en) * | 2012-07-13 | 2012-11-14 | 北京天地玛珂电液控制系统有限公司 | Electro-mechanical dual control pilot valve for unloading valve |
| CN102777663B (en) * | 2012-07-13 | 2014-09-24 | 北京天地玛珂电液控制系统有限公司 | Electro-mechanical dual control pilot valve for unloading valve |
| CN102852786A (en) * | 2012-09-29 | 2013-01-02 | 凯盛重工有限公司 | Liquid sucking valve for emulsion pump |
| CN102852786B (en) * | 2012-09-29 | 2016-01-20 | 凯盛重工有限公司 | A kind of liquid sucting valve of emulsion pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107709861A (en) | Multi-connection integral type manifold valve | |
| CN100485196C (en) | Electrohydraulic unloading valve with both hydraulic control mode and electrohydraulic control mode | |
| CN205207310U (en) | Integrated switching -over valve of guide's internally piloting formula multichannel electricity liquid | |
| CN102951198A (en) | Vehicle and hydraulic steering driving system | |
| CN2906159Y (en) | Electrohydraulic unloading valve with hydraulic control and electrohydraulic control operation modes | |
| CN103201521B (en) | High pressure intensifiers | |
| CN106659627A (en) | Hydraulic drive system for operation table | |
| CN104728203A (en) | Electro-hydraulic control reversing valve with internal pressure relief function | |
| CN110630221B (en) | Composite electrohydraulic underground control system of deepwater test tubular column safety device | |
| CN220540002U (en) | Priority valve and hydraulic system | |
| CN210531265U (en) | Multi-way valve with emergency unloading protection | |
| CN100999987B (en) | Electrohydraulic compound switch controlling valve for oil water well working with pressure | |
| CN105626936A (en) | Ultra-high-pressure anti-pollution type water hydraulic electro-hydraulic switch valve | |
| CN211901128U (en) | Multi-way valve with integral mechanical pilot check valve and electro-hydraulic proportional control | |
| CN201228787Y (en) | Three-position three way hydraulic controlled valve | |
| KR101085997B1 (en) | Safety Valve Bypass Element Guard | |
| CN105864435A (en) | Hydraulic control ultrahigh-pressure two-way stop valve for fluid and fluid stopping or communication method | |
| CN102287164A (en) | Control valve for hydraulic well mouth safety valve control system | |
| CN101575977B (en) | Hydraulic direct-regulating quick response mechanism of snap load in shield propulsion system | |
| CN101761517B (en) | Electromagnetic priority valve | |
| CN201554900U (en) | Hydraulic control water-valve device | |
| CN201428458Y (en) | Sudden-change load fast response hydraulic control aligning mechanism for shield thrust system | |
| CN218439988U (en) | Fault isolation cartridge valve for steering oil cylinder of rotating vane steering engine and rotating vane steering engine | |
| RU128272U1 (en) | HYDRAULIC DISTRIBUTION DEVICE | |
| CN111059092B (en) | Dual-system energy selection valve and isolation device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090506 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090506 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |