CN201310372Y - Rapid supply-return liquid system of big cylinder diameter vertical column of hydraulic support - Google Patents
Rapid supply-return liquid system of big cylinder diameter vertical column of hydraulic support Download PDFInfo
- Publication number
- CN201310372Y CN201310372Y CNU2008202388083U CN200820238808U CN201310372Y CN 201310372 Y CN201310372 Y CN 201310372Y CN U2008202388083 U CNU2008202388083 U CN U2008202388083U CN 200820238808 U CN200820238808 U CN 200820238808U CN 201310372 Y CN201310372 Y CN 201310372Y
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- China
- Prior art keywords
- liquid
- valve
- column
- vertical column
- control valve
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- Expired - Lifetime
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- 239000007788 liquid Substances 0.000 title claims abstract description 59
- 230000005611 electricity Effects 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The utility model discloses a rapid supply-return liquid system of a big cylinder diameter vertical column of a hydraulic support, which comprises a vertical column rapid supply liquid valve, a two-circuit stand column control valve, an alternate valve, an electric-hydraulic main control valve group, a vertical column, a side circuit return liquid pipeline, a return liquid shut-off valve, a back flush filter, a return liquid main pipeline and a feed liquid main pipeline, wherein the electric-hydraulic main control valve group is a guide valve, and the feed liquid main pipeline is communicated with a lower cavity of the vertical column through the back flush filter, the vertical column rapid supply liquid valve and the two-circuit vertical column control valve. The vertical column rapid supply liquid valve and the two-circuit vertical column control valve are equipped with double valve cores, a lower cavity chamber of the vertical column returns liquid through the double valve core of the two-circuit vertical column control valve when an upper cavity chamber of the vertical column supplies liquid, one circuit returns to the return liquid main pipeline through the vertical column rapid supply liquid valve, and the other circuit returns to the return liquid main pipeline through the alternate valve and the side circuit return liquid pipeline. Because the lower cavity chamber of the vertical column uses double inlet and double outlet, the liquid feed flow rate is above 900L/min, the speed of rising column is rapid, the liquid is returned through a side circuit when dropping column, the back pressure of the system is small, and the speed is rapid.
Description
Technical field
The utility model relates to hydraulic support, especially relates to the return liquid system that supplies of the big cylinder diameter column of hydraulic support.
Background technology
The fltting speed of hydraulic support directly influences the output of fully-mechanized mining working, at present, adopt technical development along with combining, the coal primary recovery is highly more and more higher, and the hydraulic support working resistance is increasing, and the column cylinder diameter has reached φ 500mm, for improving advancing velocity, reduce support " falling---moving---rises " circulation timei,, must increase and supply back flow quantity big cylinder diameter column.But at present hydraulic support column can't satisfy φ 500mm for return liquid system and with the needs of upper pillar stand cylinder diameter.
The utility model content
The utility model purpose is to provide a kind of column that improves to advance back the big cylinder diameter column of hydraulic support of flow quantity for return liquid system.
For achieving the above object, the utility model is taked following technical proposals:
The big cylinder diameter column of hydraulic support described in the utility model supplies return liquid system fast, comprise the quick supplying valve of column, double loop column control valve, alternately valve, support electricity liquid main control valve group, column, bypass liquid back pipe road, return liquid cutout valve, backwash filter, return liquid main line, feed liquor main line; Described support electricity liquid main control valve group is a pilot valve; Described feed liquor main line is connected with the column cavity of resorption by backwash filter, the quick supplying valve of column, double loop column control valve; Quick supplying valve of described column and double loop column control valve are double spool; Its lower chambers is returned liquid by double loop column control valve double spool during column upper chamber feed flow, wherein one the tunnel gets back to back the liquid main line through the quick supplying valve of column, and another road is through alternately the liquid main line is got back to back on valve, bypass liquid back pipe road.
The utility model advantage is a function based on conventional bracket electricity liquid main control valve group, the feed liquor main line is by backwash filter, the quick supplying valve of column, the direct column lower chambers of double loop column control valve feed flow, and quick supplying valve of column and double loop column control valve all adopt double spool column lower chambers feed flow; During column upper chamber feed flow, its lower chambers is returned liquid by double loop column control valve double spool, wherein one the tunnel gets back to back the liquid main line through the quick supplying valve of column, and another road is directly got back to back the liquid main line without the quick supplying valve of column by bypass liquid back pipe road.Therefore, the column lower chambers is two advances two returning, and the feed liquor flow is more than 900L/min, and setting prop speed is fast, returns liquid by bypass when falling post, and system back pressure is little, and speed is fast.
Description of drawings
Fig. 1 is that the big cylinder diameter column of hydraulic support described in the utility model supplies the return liquid system schematic diagram fast.
The specific embodiment
As shown in the figure, the big cylinder diameter column of hydraulic support described in the utility model supplies return liquid system fast, comprise the quick supplying valve 1 of column, double loop column control valve 2, alternately valve 3, support electricity liquid main control valve group 4, column 5, bypass liquid back pipe road 6, return liquid cutout valve 7, backwash filter 8, return liquid main line 9, feed liquor main line 10; Described support electricity liquid main control valve group 4 is a pilot valve, feed liquor main line 10 is by backwash filter 8, the quick supplying valve 1 of column, double loop column control valve 2 direct column 5 lower chambers feed flows, and quick supplying valve 1 of described column and double loop column control valve 2 all adopt double spool column 5 lower chambers feed flows; During column 5 upper chamber feed flows, its lower chambers is returned liquid by double loop column control valve 2 double spools, a road of column control valve 2 double spools are got back to back the liquid main line through the quick supplying valve 1 of column, and another road is through alternately the liquid main line is directly got back to back on valve 3, bypass liquid back pipe road 6.
Claims (1)
1, the big cylinder diameter column of a kind of hydraulic support supplies return liquid system fast, comprise the quick supplying valve of column (1), double loop column control valve (2), alternately valve (3), support electricity liquid main control valve group (4), column (5), bypass liquid back pipe road (6), return liquid cutout valve (7), backwash filter (8), return liquid main line (9), feed liquor main line (10); It is characterized in that: described support electricity liquid main control valve group (4) is pilot valve; Described feed liquor main line (10) is connected with column (5) lower chambers by backwash filter (8), the quick supplying valve of column (1), double loop column control valve (2); Quick supplying valve of described column (1) and double loop column control valve (2) are double spool; Its lower chambers is returned liquid by double loop column control valve (2) double spool during column (5) upper chamber feed flow, wherein one the tunnel get back to back the liquid main line through the quick supplying valve of column (1), another road is through alternately the liquid main line is got back to back on valve (3), bypass liquid back pipe road (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202388083U CN201310372Y (en) | 2008-12-16 | 2008-12-16 | Rapid supply-return liquid system of big cylinder diameter vertical column of hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202388083U CN201310372Y (en) | 2008-12-16 | 2008-12-16 | Rapid supply-return liquid system of big cylinder diameter vertical column of hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310372Y true CN201310372Y (en) | 2009-09-16 |
Family
ID=41107626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202388083U Expired - Lifetime CN201310372Y (en) | 2008-12-16 | 2008-12-16 | Rapid supply-return liquid system of big cylinder diameter vertical column of hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310372Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392668A (en) * | 2011-10-20 | 2012-03-28 | 宁波长壁流体动力科技有限公司 | Electronic control system for coal extraction |
| CN103233762A (en) * | 2013-04-11 | 2013-08-07 | 山西平阳重工机械有限责任公司 | Two-prop shielding type electro-hydraulic-control top-coal caving hydraulic support |
| CN103994120A (en) * | 2014-06-07 | 2014-08-20 | 曲天智 | Hydraulic support pushing oil cylinder control device and control method thereof |
| CN104533478A (en) * | 2014-12-19 | 2015-04-22 | 郑州煤矿机械集团股份有限公司 | Hydraulic system used for recycling emulsified liquid of coal face |
| CN113756849A (en) * | 2021-09-01 | 2021-12-07 | 中煤科工开采研究院有限公司 | Control method for omnidirectional mobile hydraulic support |
-
2008
- 2008-12-16 CN CNU2008202388083U patent/CN201310372Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392668A (en) * | 2011-10-20 | 2012-03-28 | 宁波长壁流体动力科技有限公司 | Electronic control system for coal extraction |
| CN103233762A (en) * | 2013-04-11 | 2013-08-07 | 山西平阳重工机械有限责任公司 | Two-prop shielding type electro-hydraulic-control top-coal caving hydraulic support |
| CN103994120A (en) * | 2014-06-07 | 2014-08-20 | 曲天智 | Hydraulic support pushing oil cylinder control device and control method thereof |
| CN104533478A (en) * | 2014-12-19 | 2015-04-22 | 郑州煤矿机械集团股份有限公司 | Hydraulic system used for recycling emulsified liquid of coal face |
| CN113756849A (en) * | 2021-09-01 | 2021-12-07 | 中煤科工开采研究院有限公司 | Control method for omnidirectional mobile hydraulic support |
| CN113756849B (en) * | 2021-09-01 | 2024-02-09 | 中煤科工开采研究院有限公司 | Control method for omni-directional mobile hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA SHENHUA ENERGY COMPANY LIMITED |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110526 Address after: 450013 No. 105, Huashan Road, Zhongyuan District, Henan, Zhengzhou Co-patentee after: China Shenhua Energy Co., Ltd. Patentee after: Zhengzhou Coal Mining Machinery Group Co., Ltd. Address before: 450013 No. 105, Huashan Road, Zhongyuan District, Henan, Zhengzhou Patentee before: Zhengzhou Coal Mining Machinery Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |