CN205089351U - Hydraulic support stand enters go back to liquid system fast - Google Patents
Hydraulic support stand enters go back to liquid system fast Download PDFInfo
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- CN205089351U CN205089351U CN201520739366.0U CN201520739366U CN205089351U CN 205089351 U CN205089351 U CN 205089351U CN 201520739366 U CN201520739366 U CN 201520739366U CN 205089351 U CN205089351 U CN 205089351U
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Abstract
The utility model relates to a hydraulic support stand enters go back to liquid system fast firstly advances back to be provided with first main hydraulically controlled check valve and first pair of hydraulically controlled check valve in the liquid valve, and the second is provided with second owner hydraulically controlled check valve and the vice hydraulically controlled check valve of second in advancing back the liquid valve, rises the stand return circuit and comprises main feed liquor return circuit and vice feed liquor return circuit, falls the stand return circuit by go back to lead the liquid return circuit and pair time liquid return circuit is constituteed, main feed liquor return circuit includes feed liquor pipeline, back flush filter, a pipeline, electric pilot operated directional control valve, B pipeline, first main hydraulically controlled check valve, second owner hydraulically controlled check valve, C pipeline and D pipeline, vice feed liquor return circuit includes E pipeline, first pair of hydraulically controlled check valve, the vice hydraulically controlled check valve of second and F pipeline. The utility model discloses the highly pressurised liquid that can make hydraulic support stand cavity of resorption flows rapidly or flows in, and pressure reduces fast or increases, finally makes the stand rise fast or descend.
Description
Technical field
The utility model belongs to fully mechanized coal mining face hydraulic support and enters return liquid system field, is specifically related to a kind of hydraulic support column and enters return liquid system fast.
Background technology
In In Modern Mine exploitation, its core technology is comprehensive mechanical coal mining equipment, and hydraulic support combines to adopt one of capital equipment in equipment.Its support action is for coal-face forms trouble free service space.Succeeding in developing of hydraulic support electrohydraulic control system is applied with popularity, hydraulic support is made to become microcomputer electrichydraulic control from manual operation, the coal winning technology realizing stope is transitioned into automation or semi-automation by mechanization, advancing velocity " falls and shifts " in the hydraulic support that this technological innovation accelerates work plane greatly, improve the supporting situation of coal-face top board, coal mining output is multiplied, direct work efficiency increases substantially, safe condition obviously improves, and cost of ton coal significantly declines.Therefore, electrohydraulic control system becomes one of important symbol of current advanced hydraulic support.Due to the particularity of hydraulic support column, column upper and lower cavity difference in areas is comparatively large, and when falling post, under column, cavity pressure is less, and cavity of resorption discharge liquid is few, causes column to decline too slow, has had a strong impact on the advancing velocity of hydraulic support.
Summary of the invention
The purpose of this utility model is to provide a kind of hydraulic support column to enter return liquid system fast.This system can make the highly pressurised liquid of hydraulic support column cavity of resorption flow out rapidly or flow into, and pressure reduces fast or increases, and finally makes column rise fast or decline.
The technical solution adopted in the utility model:
Hydraulic support column enters return liquid system fast, and it comprises the first column, the second column, backwash filter, electric-hydraulic control reversing valve, first enter back liquid valve, second and enter back liquid valve, first time liquid valve, second time liquid valve and return liquid cutout valve; First enters back in liquid valve to be provided with the first main hydraulic control one-way valve and the first secondary hydraulic control one-way valve, second enters back in liquid valve to be provided with the second main hydraulic control one-way valve and the second secondary hydraulic control one-way valve, comprise and rise column loop and fall column loop, wherein, rise column loop to be made up of main feed liquor loop and secondary feed liquor loop, fall column loop and form with secondary liquid loop of returning by leading go back to liquid loop;
Main feed liquor loop comprises water influent pipeline, backwash filter, A pipeline, electric-hydraulic control reversing valve, B pipeline, first main hydraulic control one-way valve, second main hydraulic control one-way valve, C pipeline and D pipeline, wherein, the water influent pipeline being connected with highly pressurised liquid is connected with backwash filter, backwash filter is connected by A pipeline with the inlet of electric-hydraulic control reversing valve, one end of B pipeline is connected on the liquid outlet of electric-hydraulic control reversing valve, the other end is divided into two-way, and hydraulic control one-way valve main with first and the second main hydraulic control one-way valve are connected respectively, first main hydraulic control one-way valve is communicated with the cavity of resorption of the first column by C pipeline, second main hydraulic control one-way valve is communicated with the cavity of resorption of the second column by D pipeline, now two columns of hydraulic support rise,
Secondary feed liquor loop comprises E pipeline, first secondary hydraulic control one-way valve, second secondary hydraulic control one-way valve and F pipeline, wherein, one end of E pipeline is connected on the liquid outlet of electric-hydraulic control reversing valve, the K2 that the K1 that the other end is divided into two-way hydraulic control one-way valve secondary with first respectively controls mouth and the second secondary hydraulic control one-way valve controls mouth and is connected, control mouth open for K1 being controlled mouth and K2, one end of F pipeline is connected with the liquid outlet of backwash filter, the other end is divided into two-way, and hydraulic control one-way valve secondary with first and the second secondary hydraulic control one-way valve are connected respectively, now, first main hydraulic control one-way valve is communicated with the first secondary hydraulic control one-way valve, second main hydraulic control one-way valve is communicated with the second secondary hydraulic control one-way valve, highly pressurised liquid is through entering back liquid valve and C pipeline respectively through first, and second enters back the cavity of resorption that liquid valve and D pipeline enter the first column and the second column, now two columns of hydraulic support rise fast,
Lead go back to liquid loop and comprise liquid back pipe road, G pipeline, H pipeline, I pipeline, J pipeline, first time liquid valve and second time liquid valve, wherein, one end of G pipeline is connected on the liquid outlet of electric-hydraulic control reversing valve, and the other end is divided into four tunnels and is communicated with the epicoele of the first column respectively, is communicated with the epicoele of the second column, controls mouth be connected, control mouth be connected with the one way valve K4 in second time liquid valve with the one way valve K3 in first time liquid valve; The cavity of resorption of the first column is connected with first time liquid valve by H pipeline, the cavity of resorption of the second column is connected with second time liquid valve by I pipeline, one end of J pipeline is connected with first time liquid valve and second time liquid valve respectively, is communicated with after the other end passes through back liquid cutout valve with liquid back pipe road; Now two columns of hydraulic support decline;
Secondary liquid loop of returning comprises K pipeline, L pipeline and M pipeline, wherein, one end of K pipeline is connected with G pipeline, the other end controls mouth with the K5 of the first main hydraulic control one-way valve and is connected, for the K5 of the first main hydraulic control one-way valve is controlled mouth open after the highly pressurised liquid of the first column cavity of resorption get back to electric-hydraulic control reversing valve by B pipeline through C pipeline again through the first main hydraulic control one-way valve and pass through back liquid cutout valve by M pipeline again and be communicated with liquid back pipe road; One end of L pipeline is connected with G pipeline, the other end controls mouth with the K6 of the second main hydraulic control one-way valve and is connected, for the K6 of the second main hydraulic control one-way valve is controlled mouth open after the highly pressurised liquid of the second column cavity of resorption get back to electric-hydraulic control reversing valve by B pipeline through D pipeline again through the second main hydraulic control one-way valve and pass through back liquid cutout valve by M pipeline again and be communicated with liquid back pipe road; Now two columns of hydraulic support decline fast.
The utility model compared with prior art its beneficial effect is: hydraulic support is at setting prop with when falling post, by controlling the open and close of changing liquid valve and then controlling into returning liquid valve control mouth, finally achieve two feed liquor and the double back liquid of highly pressurised liquid, make column increase fast and decline fast; The utility model controls the keying of electric hydraulic control according to the requirement of column up-down speed and reaches the speed of column up-down in addition.
Accompanying drawing explanation
Fig. 1 is structural framing figure of the present utility model.
Detailed description of the invention
As shown in Figure 1, a kind of hydraulic support column enters return liquid system fast, and it comprises the first column 1, second column 2, backwash filter 3, electric-hydraulic control reversing valve 4, first enter back liquid valve 5, second and enter back liquid valve 6, first time liquid valve 7, second time liquid valve 8, rise column loop and fall column loop; Return liquid cutout valve 9; First enters back in liquid valve 5 to be provided with the first main hydraulic control one-way valve 10 and the first secondary hydraulic control one-way valve 11, second enters back in liquid valve 6 to be provided with the second main hydraulic control one-way valve 12 and the second secondary hydraulic control one-way valve 13, comprise, wherein, rise column loop to be made up of main feed liquor loop and secondary feed liquor loop, fall column loop and form with secondary liquid loop of returning by leading go back to liquid loop;
Main feed liquor loop comprises the water influent pipeline 14 be connected with highly pressurised liquid, backwash filter 3, A pipeline 15, electric-hydraulic control reversing valve 4, B pipeline 16, first main hydraulic control one-way valve 10, second main hydraulic control one-way valve 12, C pipeline 17 and D pipeline 18, wherein, the water influent pipeline 14 being connected with highly pressurised liquid is connected with backwash filter 3, backwash filter 3 is connected by A pipeline 15 with the inlet of electric-hydraulic control reversing valve 4, one end of B pipeline 16 is connected on the liquid outlet of electric-hydraulic control reversing valve 4, the other end is divided into two-way, and hydraulic control one-way valve 10 main with first and the second main hydraulic control one-way valve 12 are connected respectively, first main hydraulic control one-way valve 10 is communicated with the cavity of resorption of the first column 1 by C pipeline 17, second main hydraulic control one-way valve 12 is communicated with the cavity of resorption of the second column 2 by D pipeline 18, highly pressurised liquid is through backwash filter 3, electric-hydraulic control reversing valve 4 is entered again through A pipeline 15, through rising after column pilot valve opens and rise column reversal valve in it, highly pressurised liquid enters the cavity of resorption of the first column 1 again through the first main hydraulic control one-way valve 10 by B pipeline 16, now two columns of hydraulic support rise,
Secondary feed liquor loop comprises E pipeline 19, first secondary hydraulic control one-way valve 11, second secondary hydraulic control one-way valve 13 and F pipeline 20, wherein, one end of E pipeline 19 is connected on the liquid outlet of electric-hydraulic control reversing valve 4, the K2 that the K1 that the other end is divided into two-way hydraulic control one-way valve 11 secondary with first respectively controls mouth and the second secondary hydraulic control one-way valve 13 controls mouth and is connected, control mouth open for K1 being controlled mouth and K2, one end of F pipeline 20 is connected with the liquid outlet of backwash filter 3, the other end is divided into two-way, and hydraulic control one-way valve 11 secondary with first and the second secondary hydraulic control one-way valve 13 are connected respectively, now, first main hydraulic control one-way valve 10 is communicated with the first secondary hydraulic control one-way valve 11, second main hydraulic control one-way valve 12 is communicated with the second secondary hydraulic control one-way valve 13, highly pressurised liquid is through entering back liquid valve 5 and C pipeline 17 respectively through first, and second enters back the cavity of resorption that liquid valve 6 and D pipeline 18 enter the first column 1 and the second column 2, when rising after column pilot valve opens and rise column reversal valve, highly pressurised liquid controls mouth through the K2 of K1 control mouth and the second secondary hydraulic control one-way valve 13 that E pipeline 19 opens the first secondary hydraulic control one-way valve 11 respectively, now enter column cavity of resorption by E pipeline 19 through two hydraulic control one-way valves entered back in liquid valve from water influent pipeline 14, now two columns of hydraulic support rise fast,
Lead go back to liquid loop and comprise liquid back pipe road 21, G pipeline 22, H pipeline 23, I pipeline 24, J pipeline 25, first time liquid valve 7 and second time liquid valve 8, wherein, one end of G pipeline 22 is connected on the liquid outlet of electric-hydraulic control reversing valve 4, and the other end is divided into four tunnels and is communicated with the epicoele of the first column 1 respectively, is communicated with the epicoele of the second column 2, controls mouth be connected, control mouth be connected with the one way valve K4 in second time liquid valve 8 with the one way valve K3 in first time liquid valve 7; The cavity of resorption of the first column 1 is connected with first time liquid valve 7 by H pipeline 23, the cavity of resorption of the second column 2 is connected with second time liquid valve 8 by I pipeline 24, one end of J pipeline 25 is connected with first time liquid valve 7 and second time liquid valve 8 respectively, and the other end is communicated with liquid back pipe road 21 after passing through back liquid cutout valve 9; When fall column pilot valve control fall column reversal valve open after, highly pressurised liquid enters upright post upper cavity by G pipeline 22, the one way valve K4 control mouth that one way valve K3 in first time liquid valve 7 controls in mouth and second time liquid valve 8 by G pipeline 22 is simultaneously opened, highly pressurised liquid flows back to liquid back pipe road 21 through first time liquid valve 7 and second time liquid valve 8 by J pipeline 25 from column cavity of resorption, and now two columns of hydraulic support decline;
Secondary liquid loop of returning comprises K pipeline 26, L pipeline 27 and M pipeline 28, wherein, one end of K pipeline 26 is connected with G pipeline 22, the other end controls mouth with the K5 of the first main hydraulic control one-way valve 10 and is connected, for the K5 of the first main hydraulic control one-way valve 10 is controlled mouth open after the highly pressurised liquid of the first column 1 cavity of resorption get back to electric-hydraulic control reversing valve 4 by B pipeline 16 through C pipeline 17 again through the first main hydraulic control one-way valve 10 and pass through back liquid cutout valve 9 by M pipeline 28 again and be communicated with liquid back pipe road 21; One end of L pipeline 27 is connected with G pipeline 22, the other end controls mouth with the K6 of the second main hydraulic control one-way valve 12 and is connected, for the K6 of the second main hydraulic control one-way valve 12 is controlled mouth open after the highly pressurised liquid of the second column 2 cavity of resorption get back to electric-hydraulic control reversing valve 4 by B pipeline 16 through D pipeline 18 again through the second main hydraulic control one-way valve 12 and pass through back liquid cutout valve 9 by M pipeline 28 again and be communicated with liquid back pipe road 21; Now two columns of hydraulic support decline fast.
Claims (1)
1. hydraulic support column enters return liquid system fast, and it comprises the first column, the second column, backwash filter, electric-hydraulic control reversing valve, first enter back liquid valve, second and enter back liquid valve, first time liquid valve, second time liquid valve and return liquid cutout valve; First enters back in liquid valve to be provided with the first main hydraulic control one-way valve and the first secondary hydraulic control one-way valve, second enters back in liquid valve to be provided with the second main hydraulic control one-way valve and the second secondary hydraulic control one-way valve, it is characterized in that: comprise and rise column loop and fall column loop, wherein, rise column loop to be made up of main feed liquor loop and secondary feed liquor loop, fall column loop and form with secondary liquid loop of returning by leading go back to liquid loop;
Main feed liquor loop comprises water influent pipeline, backwash filter, A pipeline, electric-hydraulic control reversing valve, B pipeline, first main hydraulic control one-way valve, second main hydraulic control one-way valve, C pipeline and D pipeline, wherein, the water influent pipeline being connected with highly pressurised liquid is connected with backwash filter, backwash filter is connected by A pipeline with the inlet of electric-hydraulic control reversing valve, one end of B pipeline is connected on the liquid outlet of electric-hydraulic control reversing valve, the other end is divided into two-way, and hydraulic control one-way valve main with first and the second main hydraulic control one-way valve are connected respectively, first main hydraulic control one-way valve is communicated with the cavity of resorption of the first column by C pipeline, second main hydraulic control one-way valve is communicated with the cavity of resorption of the second column by D pipeline, now two columns of hydraulic support rise,
Secondary feed liquor loop comprises E pipeline, first secondary hydraulic control one-way valve, second secondary hydraulic control one-way valve and F pipeline, wherein, one end of E pipeline is connected on the liquid outlet of electric-hydraulic control reversing valve, the K2 that the K1 that the other end is divided into two-way hydraulic control one-way valve secondary with first respectively controls mouth and the second secondary hydraulic control one-way valve controls mouth and is connected, control mouth open for K1 being controlled mouth and K2, one end of F pipeline is connected with the liquid outlet of backwash filter, the other end is divided into two-way, and hydraulic control one-way valve secondary with first and the second secondary hydraulic control one-way valve are connected respectively, now, first main hydraulic control one-way valve is communicated with the first secondary hydraulic control one-way valve, second main hydraulic control one-way valve is communicated with the second secondary hydraulic control one-way valve, highly pressurised liquid is through entering back liquid valve and C pipeline respectively through first, and second enters back the cavity of resorption that liquid valve and D pipeline enter the first column and the second column, now two columns of hydraulic support rise fast,
Lead go back to liquid loop and comprise liquid back pipe road, G pipeline, H pipeline, I pipeline, J pipeline, first time liquid valve and second time liquid valve, wherein, one end of G pipeline is connected on the liquid outlet of electric-hydraulic control reversing valve, and the other end is divided into four tunnels and is communicated with the epicoele of the first column respectively, is communicated with the epicoele of the second column, controls mouth be connected, control mouth be connected with the one way valve K4 in second time liquid valve with the one way valve K3 in first time liquid valve; The cavity of resorption of the first column is connected with first time liquid valve by H pipeline, the cavity of resorption of the second column is connected with second time liquid valve by I pipeline, one end of J pipeline is connected with first time liquid valve and second time liquid valve respectively, is communicated with after the other end passes through back liquid cutout valve with liquid back pipe road; Now two columns of hydraulic support decline;
Secondary liquid loop of returning comprises K pipeline, L pipeline and M pipeline, wherein, one end of K pipeline is connected with G pipeline, the other end controls mouth with the K5 of the first main hydraulic control one-way valve and is connected, for the K5 of the first main hydraulic control one-way valve is controlled mouth open after the highly pressurised liquid of the first column cavity of resorption get back to electric-hydraulic control reversing valve by B pipeline through C pipeline again through the first main hydraulic control one-way valve and pass through back liquid cutout valve by M pipeline again and be communicated with liquid back pipe road; One end of L pipeline is connected with G pipeline, the other end controls mouth with the K6 of the second main hydraulic control one-way valve and is connected, for the K6 of the second main hydraulic control one-way valve is controlled mouth open after the highly pressurised liquid of the second column cavity of resorption get back to electric-hydraulic control reversing valve by B pipeline through D pipeline again through the second main hydraulic control one-way valve and pass through back liquid cutout valve by M pipeline again and be communicated with liquid back pipe road; Now two columns of hydraulic support decline fast.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739366.0U CN205089351U (en) | 2015-09-23 | 2015-09-23 | Hydraulic support stand enters go back to liquid system fast |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520739366.0U CN205089351U (en) | 2015-09-23 | 2015-09-23 | Hydraulic support stand enters go back to liquid system fast |
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| CN205089351U true CN205089351U (en) | 2016-03-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222983A (en) * | 2018-03-12 | 2018-06-29 | 太原科技大学 | A kind of column boost-up circuit of hydraulic support |
| CN108952787A (en) * | 2018-07-10 | 2018-12-07 | 郑州煤矿机械集团股份有限公司 | The hydraulic support column for having interior circulatory mediator displacement |
-
2015
- 2015-09-23 CN CN201520739366.0U patent/CN205089351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222983A (en) * | 2018-03-12 | 2018-06-29 | 太原科技大学 | A kind of column boost-up circuit of hydraulic support |
| CN108952787A (en) * | 2018-07-10 | 2018-12-07 | 郑州煤矿机械集团股份有限公司 | The hydraulic support column for having interior circulatory mediator displacement |
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