CN102352762B - Low caving coal hydraulic support - Google Patents
Low caving coal hydraulic support Download PDFInfo
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- CN102352762B CN102352762B CN201110309170.4A CN201110309170A CN102352762B CN 102352762 B CN102352762 B CN 102352762B CN 201110309170 A CN201110309170 A CN 201110309170A CN 102352762 B CN102352762 B CN 102352762B
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- tail boom
- hydraulic support
- coal hydraulic
- caving coal
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Abstract
A kind of low caving coal hydraulic support, to stretch board plug type caving roof coal hydraulic support also known as two-stage, by back timber 1, column, base, caving shield 2, quadric chain, and the Fang Mei mechanism etc. be made up of tail boom and plate forms.Its Fang Mei mechanism is that two-stage is stretched board plug type Fang Mei mechanism, is made up of tail boom 3, one-level plate 4, secondary plate 5, two telescopic jack 6.One-level plate is flush-mounted on the slideway in tail boom body, and secondary plate is flush-mounted on the slideway in one-level plate, and two telescopic jack is articulated with between tail boom and secondary plate.Control two telescopic jack, two-stage plate can be promoted and stretch, close or open coal discharge outlet.This support is used for colliery fully mechanized coal face, utilizes two-stage board plug type Fang Mei mechanism of stretching to stretch the large feature of stroke, can improve the compliance that support changes bearing height; Under the shorter plate length condition of maintenance, increase the shielding scope of tail boom and plate when a high position supports, plate can be avoided when bearing height is low to encounter rearside conveyor, facilitate the supporting of rearside conveyor simultaneously.
Description
Technical field
The present invention relates to coal mine fully-mechanized mining caving roof coal hydraulic support, particularly a kind of stent support height size strong adaptability, Fang Mei mechanism to be stretched the large low caving coal hydraulic support of stroke.
Background technology
At present, the Fang Mei mechanism of two pillar low caving coal hydraulic supports of underground coal mine fully mechanized coal face use all adopts the scalable board plug structure of single-stage.Adopt the low caving coal hydraulic support of this Fang Mei mechanism, particularly high working face two pillar low caving coal hydraulic support is when bearing height is higher, also the problem of rear portion drag conveyor all cannot be protected after easily causing tail beam flashboard all to stretch out, a large amount of spoil emitted put, pour in the drag conveyor of rear portion, impact is normally produced.And when bearing height is lower, the tail boom bottom easily reaches in the drag conveyor of rear portion, cause chain rupture accident.Therefore, affect the use of low caving coal hydraulic support, hinder the performance of drawing effectiveness.
Summary of the invention
Adopt single-stage plate Fang Mei mechanism of stretching can not adapt to the deficiency that bearing height changes fully mechanized coal face greatly very well to overcome existing low caving coal hydraulic support, the invention provides a kind of low caving coal hydraulic support, its the plate stroke that stretches is large, Fang Mei mechanism shielding scope is large, can adapt to bearing height well and change large fully mechanized coal face.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
Low caving coal hydraulic support is by back timber, column, base, caving shield, quadric chain, and the Fang Mei mechanism etc. be made up of tail boom and plate is formed.Its Fang Mei mechanism is that two-stage is stretched board plug type Fang Mei mechanism.This Fang Mei mechanism is made up of tail boom, one-level plate, secondary plate and two telescopic jack etc.In tail boom body, in one-level plate body, be equipped with slideway; One-level plate is flush-mounted on the slideway in tail boom body, and secondary plate is flush-mounted on the slideway in one-level plate body; Two telescopic jack is articulated with between tail boom and secondary plate.Handling two telescopic jack can make two-stage plate realize stretching.
The invention has the beneficial effects as follows:
The two-stage of low caving coal hydraulic support is stretched board plug type Fang Mei mechanism, and the plate stroke that stretches can be made greatly to increase.While the tail boom length that maintenance is shorter, effectively improve the shielding scope of sublevel caving hydrau lic support tail boom and plate under high-order holding state, avoid the deficiency of one-level plate extension elongation; And when bearing height is lower, plate shrinkage amplitude is large, tail boom can be avoided to encounter rear portion drag conveyor, facilitate the supporting of rear portion drag conveyor, improve support tail boom to the compliance of bearing height.
Accompanying drawing explanation
Fig. 1 is low caving coal hydraulic support structural representation stereogram of the present invention.
Fig. 2 is low caving coal hydraulic support structural representation front view of the present invention.
Fig. 3 is that two-stage is stretched the structural representation top view of board plug type Fang Mei mechanism.
Fig. 4 is that two-stage is stretched the structural representation A-A sectional view of board plug type Fang Mei mechanism.
In figure: the two flexible dry jin top of 1-back timber, 2-caving shield, 3-tail boom, 4-one-level plate, 5-secondary plate, 6-.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
The structure of low caving coal hydraulic support of the present invention shown in Fig. 1,2.This low caving coal hydraulic support to stretch board plug type, two pillar low caving coal hydraulic supports also known as two-stage; Primarily of back timber 1, column, base, caving shield 2, quadric chain, and the composition such as the Fang Mei mechanism that forms of tail boom and plate.Its Fang Mei mechanism is that two-stage is stretched board plug type Fang Mei mechanism; Form primarily of tail boom 3, one-level plate 4, secondary plate 5, two telescopic jack 6.Tail boom 3, one-level plate 4, secondary plate 5 are all by the box structure of Plate Welding; Be provided with slideway in tail boom body, one-level plate 4 is inlaid in the slideway of tail boom body; Be provided with slideway in one-level plate body, secondary plate 5 is inlaid in the slideway of one-level plate body.Two telescopic jack 6 is installed in secondary plate 5, and its two ends are by bearing pin, hinged with tail boom 3, secondary plate 5 respectively.
The two telescopic jack 6 controlled between tail boom 3 and secondary plate 5 by hydraulic circuit are stretched, one-level plate 4 can be made to slide along the slideway in tail boom 3, secondary plate 5 along the slideway in one-level plate 4, realize one-level plate 4, the stretching out or regain of secondary plate 5, close or open coal discharge outlet.One-level plate 4 and secondary plate 5 rely on self structure, realize guiding and spacing.Control that tail boom jack is flexible can make tail boom 3 swing up and down, with loosening top coal or put coal.Secondary plate 5 front end is provided with the gear shaping for slotting coal.
The present invention has two-stage and to stretch board plug type Fang Mei mechanism, therefore claims two-stage to stretch board plug type low caving coal hydraulic support.Two-stage is stretched board plug type Fang Mei mechanism, effectively improve the flexible stroke of plate, be conducive to while maintenance is compared with short-tail beam length, increase the tail boom of low caving coal hydraulic support under high-order holding state and the shielding scope of plate, improve support to the compliance of bearing height, facilitate the supporting of rear portion transporter.
The prototype of above-described embodiment low caving coal hydraulic support is little plate two pillar low caving coal hydraulic support.Two-stage board plug type Fang Mei mechanism of stretching is applicable equally for little plate four-column type low caving coal hydraulic support.
Claims (4)
1. a low caving coal hydraulic support, comprise back timber (1), column, base, caving shield (2), quadric chain, and the Fang Mei mechanism to be made up of tail boom and plate, it is characterized in that: said Fang Mei mechanism is that two-stage is stretched board plug type Fang Mei mechanism, and this mechanism comprises tail boom (3), one-level plate (4), secondary plate (5), two telescopic jack (6); In tail boom (3) body, in one-level plate (4) body, be provided with slideway, one-level plate (4) is flush-mounted on the slideway in tail boom (3) body, and secondary plate (5) is flush-mounted on the slideway in one-level plate (4) body; Two telescopic jack (6) is articulated with between tail boom (3) and secondary plate (5).
2. low caving coal hydraulic support according to claim 1, is characterized in that: said low caving coal hydraulic support is little board plug type low caving coal hydraulic support.
3. low caving coal hydraulic support according to claim 2, is characterized in that: said little board plug type low caving coal hydraulic support is two pillar low caving coal hydraulic supports.
4. low caving coal hydraulic support according to claim 2, is characterized in that: said little board plug type low caving coal hydraulic support is four-column type low caving coal hydraulic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309170.4A CN102352762B (en) | 2011-10-13 | 2011-10-13 | Low caving coal hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309170.4A CN102352762B (en) | 2011-10-13 | 2011-10-13 | Low caving coal hydraulic support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102352762A CN102352762A (en) | 2012-02-15 |
| CN102352762B true CN102352762B (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110309170.4A Active CN102352762B (en) | 2011-10-13 | 2011-10-13 | Low caving coal hydraulic support |
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| CN (1) | CN102352762B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808638A (en) * | 2012-08-20 | 2012-12-05 | 郑州煤矿机械集团股份有限公司 | Insertion plate for tail beam of sublevel caving coal hydraulic bracket |
| CN103485785A (en) * | 2013-09-05 | 2014-01-01 | 山东新巨龙能源有限责任公司 | Method for preventing residual coal during top coal caving on fully mechanized caving face |
| CN104018866A (en) * | 2014-05-12 | 2014-09-03 | 山东鲁南装备制造有限公司 | Double four-bar linkage mechanism low-position blasting coal hydraulic support |
| CN105134274B (en) * | 2015-09-29 | 2017-09-22 | 天地科技股份有限公司 | The two post hydraulic support for large-mining height caving coal with three-level top coal recycling device |
| CN109630164B (en) * | 2018-12-04 | 2020-06-02 | 安徽恒源煤电股份有限公司 | Extensible hydraulic support |
| CN113803097B (en) * | 2020-06-17 | 2024-05-03 | 李信斌 | Supporting equipment |
| CN112433039A (en) * | 2020-06-30 | 2021-03-02 | 中煤华晋集团有限公司王家岭矿 | Fully-mechanized caving mining top coal migration rule similarity simulation test platform and method |
| CN114562314B (en) * | 2022-03-09 | 2023-02-28 | 中国矿业大学 | Fully mechanized caving face filling hydraulic support and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940363A (en) * | 1989-09-21 | 1990-07-10 | Meco Mining Equipment Limited | Mine roof support assembly |
| CN2612799Y (en) * | 2003-03-05 | 2004-04-21 | 兖矿集团有限公司 | Hydraulic prop frame for low position blasting down the roof coal |
| CN201062524Y (en) * | 2007-08-10 | 2008-05-21 | 郑州煤矿机械集团有限责任公司 | Two-post secured low-roof coal hydraulic bracket |
| CN201554481U (en) * | 2009-09-24 | 2010-08-18 | 郑州四维机电设备制造有限公司 | Filling supporting hydraulic support |
| CN202250135U (en) * | 2011-10-13 | 2012-05-30 | 兖州煤业股份有限公司 | Low-position sublevel caving hydraulic support |
-
2011
- 2011-10-13 CN CN201110309170.4A patent/CN102352762B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940363A (en) * | 1989-09-21 | 1990-07-10 | Meco Mining Equipment Limited | Mine roof support assembly |
| CN2612799Y (en) * | 2003-03-05 | 2004-04-21 | 兖矿集团有限公司 | Hydraulic prop frame for low position blasting down the roof coal |
| CN201062524Y (en) * | 2007-08-10 | 2008-05-21 | 郑州煤矿机械集团有限责任公司 | Two-post secured low-roof coal hydraulic bracket |
| CN201554481U (en) * | 2009-09-24 | 2010-08-18 | 郑州四维机电设备制造有限公司 | Filling supporting hydraulic support |
| CN202250135U (en) * | 2011-10-13 | 2012-05-30 | 兖州煤业股份有限公司 | Low-position sublevel caving hydraulic support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102352762A (en) | 2012-02-15 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Weimin Inventor after: Meng Xiangjun Inventor after: Liu Jian Inventor after: Li Xiaoping Inventor after: Zhang Li Inventor after: Qi Yuhao Inventor after: Cao Huaixuan Inventor before: Meng Xiangjun Inventor before: Liu Jian Inventor before: Li Xiaoping Inventor before: Zhang Li Inventor before: Qi Yuhao Inventor before: Cao Huaixuan |
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Free format text: CORRECT: INVENTOR; FROM: MENG XIANGJUN LIU JIAN LI XIAOPING ZHANG LI QI YUHAO CAO HUAIXUAN TO: LI WEIMIN MENG XIANGJUN LIU JIAN LI XIAOPING ZHANG LI QI YUHAO CAO HUAIXUAN |
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