CN202250136U - Low-position top coal-caving hydraulic bracket - Google Patents
Low-position top coal-caving hydraulic bracket Download PDFInfo
- Publication number
- CN202250136U CN202250136U CN2011203880293U CN201120388029U CN202250136U CN 202250136 U CN202250136 U CN 202250136U CN 2011203880293 U CN2011203880293 U CN 2011203880293U CN 201120388029 U CN201120388029 U CN 201120388029U CN 202250136 U CN202250136 U CN 202250136U
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- coal
- caving
- tail
- jack
- tail boom
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Abstract
The utility model relates to a low-position top coal-caving hydraulic bracket, also known as a double-tail-beam top coal-caving hydraulic bracket, which mainly comprises a top beam 1, a column, a base box, four connecting rod mechanisms and a coal-caving mechanism. The coal-caving mechanism comprises a plurality of tail beams and a plurality of insert plates, and is a double-tail-beam coal-caving mechanism with two independent tail beams, i.e. a left tail beam 3 and a right tail beam 4. The left tail beam 3, a left tail beam jack, a left insert plate 5 and a left insert plate jack form a left tail beam coal-caving mechanism; the right tail beam 4, the right tail beam jack, the right insert plate 6 and the right insert plate jack form a right tail beam coal-caving mechanism; and the left tail beam jack, the left insert plate jack, the right tail beam jack and the right insert plate jack are respectively controlled by an independent hydraulic circuit. The top coal-caving hydraulic bracket can be used on a fully caving surface, the width of the coal-caving port can be reduced by half through the control of the double-tail-beam coal-caving mechanism, the swinging of the tail beams can be facilitated so that top coal can be fully broken and caving can be realized, and the rate of resource recovery can be increased; and the caving amount of top gangue can be better controlled, and the caving of large gangue can be avoided. Therefore, conditions can be provided to increase the width of the bracket and reduce the number of brackets on the fully caving surface.
Description
Technical field
The utility model relates to the coal mine fully-mechanized mining caving roof coal hydraulic support, particularly can make the coal discharge outlet width reduce by half, improve a kind of low caving coal hydraulic support of Caving Coal control effect, control top cash discharging amount.
Background technology
Advantages such as that top coal caving has is highly efficient and productive, low consumption, at present, the Caving Coal technology has obtained extensive use in thick coal-layer mining.But top coal caving exist resource recovery low, contain deficiencies such as the cash amount is big.The 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, contain the big deficiency of cash amount; The utility model provides a kind of caving roof coal hydraulic support; The coal discharge outlet width is reduced by half, improve Caving Coal control effect and resource recovery, control top cash discharging amount; Preventing that the bulk spoil from emitting puts, and reduces the comprehensive coal face cost of ton coal.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
A kind of low caving coal hydraulic support, mainly by back timber, column, base member case, quadric chain, face guard, passing jack, and the coal mechanism of putting of tail boom and plate formation forms.It puts coal mechanism is that two tail booms are put coal mechanism, and this mechanism comprises independently tail boom of two of left tail booms, right tail boom.Left side tail boom and left tail boom jack, left plate, left plate jack constitute left tail boom and put coal mechanism.Right tail boom and right tail boom jack, right plate, right plate jack constitute right tail boom and put coal mechanism.Left side 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 beneficial effect of the utility model is:
1. this pair tail boom caving roof coal hydraulic support is compared with single tail boom sublevel caving hydrau lic support, and the coal discharge outlet width that its pair tail boom is put coal mechanism reduces half, is easy to tail boom and swings up and down, and crushing voerhead coal is abundant, and the top coal emits to put and is more prone to, and helps improving coal recovery rate; Simultaneously the coal discharge outlet width reduces, and can control top cash discharging amount well, and effectively the amplifying block spoil is emitted in control; Have and have more the advantage that coal goes out cash less, the cost of ton coal of reduction fully mechanized coal face.Put coal mechanism regulation and control coal discharge outlet width through two tail booms, can improve effect Caving Coal control.
2. two tail booms are put the employing of coal mechanism, can make support increase width, thereby reduce the number of holders and the plant maintenance amount of the work plane needs of equal face length; And can move frame, put and leak the bulk spoil after preventing frame in the coal process, eliminate safe hidden trouble.
Description of drawings
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.
Among the figure: 1-back timber, 2-caving shield, 3-left side tail boom, the right tail boom of 4-, 5-left side plate, the right plate of 6-.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Overall structure at Fig. 1, a kind of low caving coal hydraulic support of the utility model shown in 2.This low caving coal hydraulic support is claimed two tail boom caving roof coal hydraulic supports again; By back timber 1, column, base member case, caving shield 2, quadric chain, face guard, extensible canopy, passing jack, and tail boom and plate constitute put composition such as coal mechanism.Coal mechanism is put for two tail booms in the coal mechanism of putting of this sublevel caving hydrau lic support; This is put coal mechanism and is made up of left tail boom 3,4 two independent tail booms of right tail boom.Left side tail boom 3 constitutes left tail boom with left tail boom jack, left plate 5, left plate jack and puts coal mechanism.Right tail boom 4 constitutes right tail boom with right tail boom jack, right plate 6, right plate jack and puts coal mechanism.
Left side tail boom 3, right tail boom 4 are hinged on the left and right both sides of caving shield 2 afterbodys.Left side tail boom 3 is by one or more left tail boom jack controls.Right tail boom 4 also is by one or more right tail boom jack controls.Left side tail boom jack, left plate jack, right tail boom jack, right plate jack are respectively by independently hydraulic control circuit control separately.
Sublevel caving hydrau lic support with a traditional tail boom is compared, and the coal discharge outlet width behind two tail boom support framves reduces half the, is easy to tail boom and swings up and down; Crushing voerhead coal is abundant, and the top coal is emitted and is more prone to, and helps improving coal recovery rate; The coal discharge outlet width reduces simultaneously, can effectively control the bulk spoil.Two tail boom caving roof coal hydraulic supports have and have more the advantage that coal goes out cash less.
Traditional caving roof coal hydraulic support has only a tail boom.Support width increases, and the work plane of equal width needs number of holders to reduce, and the plant maintenance workload reduces, but the tail boom width is big more, move frame, to put the probability that leaks the bulk spoil in the coal process behind the frame big more, has bigger potential safety hazard.But two tail booms are put the employing of coal mechanism and just can be addressed this problem.
The prototype of the caving roof coal hydraulic support of the foregoing description is little plate two pillar low caving coal hydraulic supports, and its little plate is put coal mechanism and changed two little plates of tail boom into and put coal mechanism.Two tail booms are put coal mechanism and are also adapted to little plate four-column type low caving coal hydraulic support; It is suitable equally for two pillars and the four-column type low caving coal hydraulic support of big board plug type that two tail booms are put coal mechanism.
Large and small plate is put coal mechanism and all is made up of tail boom, tail boom jack, plate and plate jack.It is hinged that little plate is put the tail boom and the caving shield of coal mechanism, and tail boom and back timber that big plate is put coal mechanism are hinged.
Claims (5)
1. low caving coal hydraulic support; What comprise that back timber (1), column, base member case, quadric chain, face guard, passing jack and tail boom and plate constitute puts coal mechanism; It is characterized in that: the said coal mechanism of putting is that two tail booms are put coal mechanism, and this mechanism comprises independently tail boom of (4) two of left tail booms (3), right tail boom; Left side tail boom (3) constitutes left tail boom with left tail boom jack, left plate (5), left plate jack and puts coal mechanism; Right tail boom (4) constitutes right tail boom with right tail boom jack, right plate (6), right plate jack and puts coal mechanism; Left side 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, i.e. hinged, caving shield (2) and the hinged low caving coal hydraulic support of back timber (1) of tail boom and caving shield (2).
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 big 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 claim 2 or 3 described a kind of low caving coal hydraulic supports, it is characterized in that: said low caving coal hydraulic support is two pillar caving roof coal hydraulic supports.
5. according to claim 2 or 3 described a kind of low caving coal hydraulic supports, it is characterized in that: said low caving coal hydraulic support is the four-column type caving roof coal hydraulic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203880293U CN202250136U (en) | 2011-10-13 | 2011-10-13 | Low-position top coal-caving hydraulic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203880293U CN202250136U (en) | 2011-10-13 | 2011-10-13 | Low-position top coal-caving hydraulic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250136U true CN202250136U (en) | 2012-05-30 |
Family
ID=46111394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203880293U Withdrawn - After Issue CN202250136U (en) | 2011-10-13 | 2011-10-13 | Low-position top coal-caving hydraulic bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250136U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383817A (en) * | 2011-10-13 | 2012-03-21 | 兖州煤业股份有限公司 | Hydraulic bracket for top coal discharging in low position |
| CN102704978A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | High fully mechanized filling, mining and screening hydraulic support |
-
2011
- 2011-10-13 CN CN2011203880293U patent/CN202250136U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383817A (en) * | 2011-10-13 | 2012-03-21 | 兖州煤业股份有限公司 | Hydraulic bracket for top coal discharging in low position |
| CN102383817B (en) * | 2011-10-13 | 2014-03-12 | 兖州煤业股份有限公司 | Hydraulic bracket for top coal discharging in low position |
| CN102704978A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | High fully mechanized filling, mining and screening hydraulic support |
| CN102704978B (en) * | 2012-06-29 | 2014-12-10 | 中国矿业大学 | High fully mechanized filling, mining and screening hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20140312 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20140312 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |