CN102373939A - Light hydraulic bracket for shortwall face - Google Patents
Light hydraulic bracket for shortwall face Download PDFInfo
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- CN102373939A CN102373939A CN2011103317081A CN201110331708A CN102373939A CN 102373939 A CN102373939 A CN 102373939A CN 2011103317081 A CN2011103317081 A CN 2011103317081A CN 201110331708 A CN201110331708 A CN 201110331708A CN 102373939 A CN102373939 A CN 102373939A
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- oil cylinder
- bracket
- pushing
- shortwall
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Abstract
The invention relates to a hydraulic bracket used in a coal mine, in particular to a light hydraulic bracket for a shortwall face, and solves the technical problem that the existing hydraulic bracket is unsuitable for a shortwall high mining height working surface. The light hydraulic bracket comprises a base and two hydraulic telescopic uprights on the base. The top ends of the hydraulic telescopic uprights are hinged with sockets of a bracket top beam. The rear part of the bracket top beam is hinged with a bracket shield beam. The lower part of the bracket shield beam is hinged with the base through connecting rods. A pushing-moving rod and a push-and-pull oil cylinder are arranged in the base. One end of the push-and-pull oil cylinder is connected with the base, and the other end of the push-and-pull oil cylinder is connected with the pushing-moving rod. The rear part of the base is provided with a shield pushing-moving oil cylinder baffle. The shield pushing-moving oil cylinder baffle is additionally arranged at the rear part of the base, so that a stroke of a pushing-moving oil cylinder can be increased, the push-and-pull oil cylinder is avoided being smashed by waste rocks caved from a top plate, and the efficiency pushing-moving step pitch is improved by 1.2 meters. The cutting step pitch is increased, and the coal cutting efficiency is improved.
Description
Technical field
The present invention relates to the hydraulic support that use in the colliery, be specially a kind of shortwall light hydraulic frame.
Background technology
At present, domestic a large amount of medium and small colliery does not have suitable coal winning technology and equipment, and the coal mining means fall behind, the coal mining inefficiency, and especially the large-mining-height working surface of high-yield and high-efficiency is few especially.The big mining height coal winning technology requirement of shortwall supporting use weight support frame is light, supporting height is big, efficient is high.And present hydraulic support is bulky; Weight is big; Transportation and mobile difficulty, step pitch is little, but the work plane that is not suitable for very much medium and small colliery or big mining height shortwall uses; Therefore need aim at high workload resistance that the medium and small colliery design is fit to the big mining height coal winning technology of shortwall, in light weight, mechanism is compact, easy accessibility, can be good at satisfying that middle-size and small-size mine vertical is gone into the well, installation and transportation light-duty big mining height support.Light-duty big mining height support and the supporting use of short-wall coal-winning machine are the nucleus equipments of realizing the big mining height coal winning technology of shortwall.
Summary of the invention
The present invention provides a kind of shortwall light hydraulic support in order to solve the technical problem of the inapplicable colliery of existing hydraulic support shortwall large-mining-height working surface.
The present invention is realized that by following technical scheme a kind of shortwall light hydraulic support comprises base, two hydraulically extensible columns on the base, and said hydraulically extensible column top and set cap needling are hinged; Set cap rear portion and support caving shield are hinged; Support caving shield bottom is hinged through connecting rod and base; In base, be provided with pusher rod and push cylinder, push cylinder one end connects base, and an end connects pusher rod, is provided with shielding at the base rear portion and passes the oil cylinder baffle plate.
Pass the oil cylinder baffle plate owing to increased shielding at the base rear portion, can make the passing oil cylinder can increase stroke, and avoid being smashed by the spoil of roof caving, raising the efficiency and passing step pitch is 1.2 meters.Increase the cut step pitch, improved coal mining efficient.
Said set cap is an overall structure, which is provided with stroke and be 1 meter extensible canopy and face guard.Can reach better supporting effect.
Described set cap height is not less than 5 meters, 1.5 meters of support widths, and maximum height, width were than 3.46: 1.Can on large-mining-height working surface, use, improve the rate of recovery of coal resources;
Adopt high-strength plate welding fabrication in a large number for alleviating weight support frame, greatly reduced weight support frame.Component weight is little.Can be good at satisfying that middle-size and small-size mine vertical is gone into the well, the requirement of installation and transportation.Particularly shortwall need frequently move frame, and the present invention is more suitable for using.
Guarantee support stability simultaneously for alleviating weight support frame, the connecting rod that support caving shield bottom and base are hinged adopts single front rod, whole back link structure.
The supporting use of this support and short-wall coal-winning machine is adapted to the shortwall exploitation more than 20 meters especially.This light-duty big mining height support not only can be used for routine work face and advances, and also can be used for reclaiming fritter resource and large-scale coal column, has good economic benefit and social benefit.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is that the A of Fig. 1 is to view
Among the figure: the 1-set cap, 2-support caving shield, 3, the 4-connecting rod, the 5-base, 6-hydraulically extensible column, the 7-pusher rod, the 8-extensible canopy, the 9-face guard, the 10-push cylinder, the oil cylinder baffle plate is passed in 11-shielding.
The specific embodiment
Meaning as shown in Figure 1, a kind of shortwall light hydraulic support comprises base 5, two hydraulically extensible columns 6 on the base 5, said hydraulically extensible column 6 tops and set cap 1 needling are hinged; Set cap 1 rear portion and support caving shield 2 are hinged; Support caving shield 2 bottoms are hinged through connecting rod 3,4 and base 5; In base 5, be provided with pusher rod 7 and push cylinder 10, push cylinder 10 1 ends connect base 5, one ends and connect pusher rod 7, are provided with shielding at base 5 rear portions and pass oil cylinder baffle plate 11.
Pass oil cylinder baffle plate 11 owing to increased shielding at base 5 rear portions, can make passing oil cylinder 10 can increase stroke, and avoid being smashed by the spoil of roof caving, raising the efficiency and passing step pitch is 1.2 meters.Increase the cut step pitch, improved coal mining efficient.
Said set cap 1 is an overall structure, which is provided with stroke and be 1 meter extensible canopy 8 and face guard 9.Can reach better supporting effect.
Described set cap 1 the highest rise highly is not less than 5 meters, and minimum shipping height is 2 meters behind the hydraulically extensible column of dismantling.1.5 meters of set cap 1 width, maximum height, width ratio are not less than 3.46: 1.Can on large-mining-height working surface, use, improve the rate of recovery of coal resources;
Claims (3)
1. a shortwall light hydraulic support comprises base (5), two the hydraulically extensible columns (6) on the base (5), and said hydraulically extensible column (6) top and set cap (1) needling are hinged; Set cap (1) rear portion and support caving shield (2) are hinged; Support caving shield (2) bottom is hinged through connecting rod (3,4) and base (5); In base (5), be provided with pusher rod (7) and push cylinder (10), push cylinder (10) one ends connect base (5), and an end connects pusher rod (7), it is characterized in that: be provided with shielding at base (5) rear portion and pass oil cylinder baffle plate (11).
2. shortwall light hydraulic support according to claim 1 is characterized in that: said set cap (1) is an overall structure, which is provided with extensible canopy (8) and the face guard (9) of stroke for (1) rice.
3. shortwall light hydraulic support according to claim 1 is characterized in that: whole maximum height, width ratio are not less than 3.46: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331708.1A CN102373939B (en) | 2011-10-27 | Light hydraulic bracket for shortwall face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331708.1A CN102373939B (en) | 2011-10-27 | Light hydraulic bracket for shortwall face |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102373939A true CN102373939A (en) | 2012-03-14 |
| CN102373939B CN102373939B (en) | 2016-12-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502079A (en) * | 2014-12-15 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Stand column dynamic test device |
| CN106194228A (en) * | 2016-07-22 | 2016-12-07 | 刘丹 | A kind of coal-mine hydraulic support of adjustable support point |
| CN111946378A (en) * | 2020-07-29 | 2020-11-17 | 煤炭科学研究总院 | Light electric bracket for coal mine |
| CN113356914A (en) * | 2021-07-20 | 2021-09-07 | 福州大学 | Shield support for thin-layer inclined ore body mining support and construction method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252006A (en) * | 1992-02-27 | 1993-10-12 | Westfalia Becorit Industrietechnik Gmbh | Mine roof support |
| DE20316659U1 (en) * | 2003-10-29 | 2004-01-15 | Maschinenfabrik Glückauf GmbH & Co. KG | Hydraulic longwall used in underground mining, especially as a shield-type support, comprises a footwall runner having a lifting device with a lifting cylinder held at one end |
| CN1526914A (en) * | 2003-03-05 | 2004-09-08 | 兖矿集团有限公司 | Hydraulic coal mine support for low-position roof blasting-down |
| CN201202485Y (en) * | 2008-06-10 | 2009-03-04 | 重庆大江工业(集团)有限责任公司 | Large extracting high hydraulic support |
| CN201232566Y (en) * | 2008-06-26 | 2009-05-06 | 郑州煤炭工业(集团)有限责任公司 | Novel blasting top coal hydraulic support |
| CN101463729A (en) * | 2009-01-15 | 2009-06-24 | 天地科技股份有限公司 | Hydraulic support for large-mining height caving coal |
| CN201714415U (en) * | 2010-06-02 | 2011-01-19 | 郑晶晶 | Hydraulic support with foldable type connecting rod |
| CN202325609U (en) * | 2011-10-27 | 2012-07-11 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Light hydraulic bracket of short wall working surface |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252006A (en) * | 1992-02-27 | 1993-10-12 | Westfalia Becorit Industrietechnik Gmbh | Mine roof support |
| CN1526914A (en) * | 2003-03-05 | 2004-09-08 | 兖矿集团有限公司 | Hydraulic coal mine support for low-position roof blasting-down |
| DE20316659U1 (en) * | 2003-10-29 | 2004-01-15 | Maschinenfabrik Glückauf GmbH & Co. KG | Hydraulic longwall used in underground mining, especially as a shield-type support, comprises a footwall runner having a lifting device with a lifting cylinder held at one end |
| CN201202485Y (en) * | 2008-06-10 | 2009-03-04 | 重庆大江工业(集团)有限责任公司 | Large extracting high hydraulic support |
| CN201232566Y (en) * | 2008-06-26 | 2009-05-06 | 郑州煤炭工业(集团)有限责任公司 | Novel blasting top coal hydraulic support |
| CN101463729A (en) * | 2009-01-15 | 2009-06-24 | 天地科技股份有限公司 | Hydraulic support for large-mining height caving coal |
| CN201714415U (en) * | 2010-06-02 | 2011-01-19 | 郑晶晶 | Hydraulic support with foldable type connecting rod |
| CN202325609U (en) * | 2011-10-27 | 2012-07-11 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Light hydraulic bracket of short wall working surface |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502079A (en) * | 2014-12-15 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Stand column dynamic test device |
| CN106194228A (en) * | 2016-07-22 | 2016-12-07 | 刘丹 | A kind of coal-mine hydraulic support of adjustable support point |
| CN111946378A (en) * | 2020-07-29 | 2020-11-17 | 煤炭科学研究总院 | Light electric bracket for coal mine |
| WO2022022056A1 (en) * | 2020-07-29 | 2022-02-03 | 煤炭科学研究总院 | Light electric support for coal mine |
| CN113356914A (en) * | 2021-07-20 | 2021-09-07 | 福州大学 | Shield support for thin-layer inclined ore body mining support and construction method |
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