CN102383817B - Hydraulic bracket for top coal discharging in low position - Google Patents
Hydraulic bracket for top coal discharging in low position Download PDFInfo
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- CN102383817B CN102383817B CN201110309177.6A CN201110309177A CN102383817B CN 102383817 B CN102383817 B CN 102383817B CN 201110309177 A CN201110309177 A CN 201110309177A CN 102383817 B CN102383817 B CN 102383817B
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Abstract
A hydraulic bracket for top coal discharging in a low position is also known as a double-tail-beam hydraulic bracket for top coal discharging, and mainly consists of a top beam I, a stand column, a base box, a four-connecting-rod mechanism, and a coal discharging mechanism which is formed by tail beams and inserting plates. The coal discharging mechanism adopts the two tail beams, and comprises the two independent tail beams, namely a left tail beam 3 and a right tail beam 4. A left tail beam coal discharging mechanism is formed by the left tail beam 3, a left tail beam lifting jack, a left inserting plate 5 and a left inserting plate lifting jack; a right tail beam coal discharging mechanism is formed by a right tail beam 4, a right tail beam lifting jack, a right inserting plate 6 and a right inserting plate lifting jack; and the left tail beam lifting jack, the left inserting plate lifting jack, the right tail beam lifting jack and the right inserting plate lifting jack are respectively controlled by an independent hydraulic loop. The bracket for top coal discharging is used on a fully-mechanized caving mining surface, and due to the control of the double-tail-beam coal discharging mechanism, the width of a coal discharging hole can be reduced by a half, and the tail beams can swing more easily, so that the top coal can be smashed and caved sufficiently, and the recovery rate of resources can be improved; and the top gangue discharging amount can be controlled better, and large-size gangue can be prevented from caving. The hydraulic bracket for top coal discharging in a low position creates conditions for increasing the width of the bracket and reducing the number of the brackets on the full-mechanized caving mining surface.
Description
Technical field
The present invention relates to coal mine fully-mechanized mining caving roof coal hydraulic support, particularly can make coal discharge outlet width reduce by half, improve a kind of low caving coal hydraulic support that Sub-Level Caving is controlled effect, controlled top cash discharging amount.
Background technology
The advantages such as that top coal caving has is highly efficient and productive, low consumption, at present, Sub-Level Caving technology is widely applied in thick coal-layer mining.But top coal caving exist resource recovery low, containing deficiencies such as cash amount are large.Raising coal recovery rate and the top cash discharging amount of controlling well are important topics of current mining production practice.
Summary of the invention
For overcome with existing sublevel caving hydrau lic support back production exist resource recovery low, containing the large deficiency of cash amount, the invention provides a kind of caving roof coal hydraulic support, can make coal discharge outlet width reduce by half, improve Sub-Level Caving and control effect and resource recovery, control top cash discharging amount, preventing that bulk spoil from emitting puts, and reduces comprehensive coal face cost of ton coal.
The present invention solves the problems of the technologies described above adopted technical scheme to be:
A low caving coal hydraulic support, mainly by back timber, column, base member case, quadric chain, face guard, advancing jack, and the Fang Mei mechanism of tail boom and plate formation forms.Qi Fang coal mechanism is that ，Gai mechanism of two tail boom Fang Mei mechanism comprises independently tail boom of two of left tail booms, right tail boom.Left tail boom and left tail boom jack, left plate, left plate jack form left tail boom Fang Mei mechanism.Right tail boom and right tail boom jack, right plate, right plate jack form right tail boom Fang Mei mechanism.Left tail boom jack, left plate jack, right tail boom jack, right plate jack are respectively by independently hydraulic control circuit control is flexible separately.
The invention has the beneficial effects as follows:
1. this pair of tail boom caving roof coal hydraulic support compared with single tail boom sublevel caving hydrau lic support, and the coal discharge outlet width of its pair of tail boom Fang Mei mechanism reduces half, is easy to tail boom and swings up and down, and crushing voerhead coal is abundant, and top coal emits to put and is more prone to, and is conducive to improve coal recovery rate; Simultaneously coal discharge outlet width reduces, and can control top cash discharging amount well, effectively controls to emit and amplifies piece spoil; Have advantages of that the coal of having more goes out cash less, reduce the cost of ton coal of fully mechanized coal face.By two tail boom Fang Mei mechanism regulation and control coal discharge outlet width, can improve the effect that Sub-Level Caving is controlled.
2. the employing of pair tail boom Fang Mei mechanism, can make support increase width, thereby reduces number of holders and the plant maintenance amount of the work plane needs of equal face length; And after preventing frame in moving frame, putting coal process, leak bulk spoil, eliminate safe hidden trouble.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation shaft side figure of low caving coal hydraulic support.
Fig. 2 is a kind of structural representation front view of low caving coal hydraulic support.
In figure: 1-back timber, 2-caving shield, the left tail boom of 3-, the right tail boom of 4-, the left plate of 5-, the right plate of 6-.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Overall structure at a kind of low caving coal hydraulic support of the present invention shown in Fig. 1,2.This low caving coal hydraulic support claims again two tail boom caving roof coal hydraulic supports; By back timber 1, column, base member case, caving shield 2, quadric chain, face guard, extensible canopy, advancing jack, and the compositions such as Fang Mei mechanism of tail boom and plate formation.The Fang Mei mechanism of this sublevel caving hydrau lic support is pair tail boom Fang Mei mechanism; Gai Fang coal mechanism is comprised of left tail boom 3,4 two independent tail booms of right tail boom.Left tail boom 3 and left tail boom jack, left plate 5, left plate jack form left tail boom Fang Mei mechanism.Right tail boom 4 and right tail boom jack, right plate 6, right plate jack form right tail boom Fang Mei mechanism.
Sublevel caving hydrau lic support with a traditional tail boom is compared, and the coal discharge outlet width after two tail boom support framves reduces half, is easy to tail boom and swings up and down, crushing voerhead coal is abundant, and top coal is emitted and is more prone to, and is conducive to improve coal recovery rate, coal discharge outlet width reduces simultaneously, can effectively control bulk spoil.Two tail boom caving roof coal hydraulic supports have advantages of that the coal of having more goes out cash less.
Traditional caving roof coal hydraulic support only has a tail boom.Support width increases, and the work plane of equal width needs number of holders to reduce, and plant maintenance workload reduces, but tail boom width is larger, and the probability that leaks bulk spoil in moving frame, putting coal process after frame is larger, has larger potential safety hazard.But the employing of two tail boom Fang Mei mechanism just can address this problem.
The prototype of the caving roof coal hydraulic support of above-described embodiment is little plate two pillar low caving coal hydraulic supports, and its little plate Fang Mei mechanism changes the two little plate Fang Mei of tail boom mechanism into.Two tail boom Fang Mei mechanism also adapts to little plate four-column type low caving coal hydraulic support; Two tail boom Fang Mei mechanism is applicable equally for two pillars and the four-column type low caving coal hydraulic support of large board plug type.
Large and small plate Fang Mei mechanism is all comprised of tail boom, tail boom jack, plate and plate jack.Tail boom and the caving shield of little plate Fang Mei mechanism are hinged, and tail boom and the back timber of large plate Fang Mei mechanism are hinged.
Claims (5)
1. a low caving coal hydraulic support, comprise the Fang Mei mechanism that back timber (1), column, base member case, quadric chain, face guard, advancing jack and tail boom and plate form, it is characterized in that: said Fang Mei mechanism is that ，Gai mechanism of two tail boom Fang Mei mechanism comprises independently tail boom of (4) two of left tail booms (3), right tail boom; Left tail boom (3) and left tail boom jack, left plate (5), left plate jack form left tail boom Fang Mei mechanism; Right tail boom (4) and right tail boom jack, right plate (6), right plate jack form right tail boom Fang Mei mechanism; Left tail boom jack, left plate jack, right tail boom jack, right plate jack respectively with separately independently hydraulic control circuit be connected.
2. a kind of low caving coal hydraulic support according to claim 1, it is characterized in that: said low caving coal hydraulic support is little board plug type low caving coal hydraulic support the low caving coal hydraulic support that tail boom and caving shield (2) are hinged, caving shield (2) is hinged with back timber (1).
3. a kind of low caving coal hydraulic support according to claim 1, is characterized in that: said low caving coal hydraulic support is that large board plug type low caving coal hydraulic support is the hinged low caving coal hydraulic support of tail boom and back timber.
4. according to a kind of low caving coal hydraulic support described in claim 2 or 3, it is characterized in that: said low caving coal hydraulic support is two pillar caving roof coal hydraulic supports.
5. according to a kind of low caving coal hydraulic support described in claim 2 or 3, it is characterized in that: said low caving coal hydraulic support is four-column type caving roof coal hydraulic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309177.6A CN102383817B (en) | 2011-10-13 | 2011-10-13 | Hydraulic bracket for top coal discharging in low position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309177.6A CN102383817B (en) | 2011-10-13 | 2011-10-13 | Hydraulic bracket for top coal discharging in low position |
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| Publication Number | Publication Date |
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| CN102383817A CN102383817A (en) | 2012-03-21 |
| CN102383817B true CN102383817B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110309177.6A Active CN102383817B (en) | 2011-10-13 | 2011-10-13 | Hydraulic bracket for top coal discharging in low position |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026109B (en) * | 2018-10-09 | 2023-11-28 | 中国矿业大学(北京) | Fully-mechanized caving mining intelligent coal caving mechanism |
| CN113803097B (en) * | 2020-06-17 | 2024-05-03 | 李信斌 | Supporting equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893150Y (en) * | 2006-03-29 | 2007-04-25 | 天地科技股份有限公司 | Combined linear hydraulic support |
| CN201381864Y (en) * | 2009-03-31 | 2010-01-13 | 郑州煤机综机设备有限公司 | Split-type front and rear end head hydraulic support |
| CN201391321Y (en) * | 2009-04-09 | 2010-01-27 | 山东科技大学 | Large-dig-angle low-level caving hydraulic support |
| CN202250136U (en) * | 2011-10-13 | 2012-05-30 | 兖州煤业股份有限公司 | Low-position top coal-caving hydraulic bracket |
-
2011
- 2011-10-13 CN CN201110309177.6A patent/CN102383817B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893150Y (en) * | 2006-03-29 | 2007-04-25 | 天地科技股份有限公司 | Combined linear hydraulic support |
| CN201381864Y (en) * | 2009-03-31 | 2010-01-13 | 郑州煤机综机设备有限公司 | Split-type front and rear end head hydraulic support |
| CN201391321Y (en) * | 2009-04-09 | 2010-01-27 | 山东科技大学 | Large-dig-angle low-level caving hydraulic support |
| CN202250136U (en) * | 2011-10-13 | 2012-05-30 | 兖州煤业股份有限公司 | Low-position top coal-caving hydraulic bracket |
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| CN102383817A (en) | 2012-03-21 |
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