CN201314238Y - Great mining height hydraulic bracket for top coal caving - Google Patents
Great mining height hydraulic bracket for top coal caving Download PDFInfo
- Publication number
- CN201314238Y CN201314238Y CNU2008202270005U CN200820227000U CN201314238Y CN 201314238 Y CN201314238 Y CN 201314238Y CN U2008202270005 U CNU2008202270005 U CN U2008202270005U CN 200820227000 U CN200820227000 U CN 200820227000U CN 201314238 Y CN201314238 Y CN 201314238Y
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- caving
- base
- mining height
- back timber
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Abstract
A great mining height hydraulic bracket for top coal caving comprises a base, upright posts, a top beam, a front beam, a shield beam, a tail beam and an inserting plate; the top beam is supported on the base through four upright posts, the front beam and the shield beam are hinged with the front end and the rear end of the top beam respectively, a connecting rod is also connected on the shield beam, a telescopic beam is arranged in the front of the front beam, the telescopic beam is connected with the front beam through a jack of the telescopic beam, the front end of the telescopic beam is hinged with the rear part of an upper protection plate, one end of the jack of the upper protection plate is connected with the telescopic beam, and the other end thereof is connected with the tail part of the upper protection plate; the front end of the tail beam is hinged with the shield beam, the other end of the tail beam is connected with the shield beam through the jack of the tail beam, and the inserting plate is positioned inside the tail beam. The great mining height hydraulic bracket for top coal caving has the advantages of great mining height and high working resistance, not only can realize the top coal caving , but also can realize the full mining height once when the coal thickness is 4.5m.
Description
Technical field
The utility model relates to mining support apparatus, relates in particular to a kind of hydraulic support for large-mining height caving coal.
Background technology
The essence of caving coal fully-mechanized mining is to arrange fully-mechanized mining working in the bottom of working seam, except that mining with normal three machines (coal-winning machine, conveyer and hydraulic support), also utilize mine pressure or be aided with artificial loosening method and make crushing voerhead coal on the work plane, and with the advance of the face, and forwardly or the rear emit or reclaim.Caving roof coal hydraulic support is as one of caving coal fully-mechanized mining most important equipment, and its performance and quality directly influence the development of caving coal fully-mechanized mining.Existing work plane low level is put its bottom of a coal hydraulic bracket for base, and back timber is supported by hydraulic vertical prop, and hydraulic support the place ahead is a front-axle beam, and front-axle beam and back timber are hinged and promote its motion by the front-axle beam jack.The rear of hydraulic support is hinged with caving shield, and the hinged tail boom that has plate at the caving shield rear portion by the loosening top of upper and lower swing tail boom coal, realizes putting coal.The sublevel caving hydrau lic support machine mining height degree of this structure is low, and it is too many only to adopt not unrestrained expense coal resources for 4～5m high seam, and the caving coal can cause dirt band, influences Coal Quality.
Summary of the invention
The utility model purpose provides a kind of hydraulic support for large-mining height caving coal, and it can realize the following coal seam of 4.5m full-seam mining, and the longwall top coal caving of 4.5m～10m high seam has been realized the economical rationality exploitation in coal seam preferably.
For achieving the above object, the technical solution adopted in the utility model is: a kind of hydraulic support for large-mining height caving coal, comprise described base, column, back timber, front-axle beam, caving shield, tail boom and plate, back timber is bearing on the base by four root posts, front-axle beam and caving shield are hinged with the rear and front end portion of back timber respectively, also be connected with connecting rod on the caving shield, the other end of connecting rod links to each other with base, the front-axle beam rear end is bearing on the back timber by the front-axle beam jack, it is characterized in that: the place ahead of front-axle beam is an extensible canopy, extensible canopy links to each other with front-axle beam by the extensible canopy jack, the extensible canopy front end is hinged with the rear portion of protecting nation's plate, protect nation's plate jack one end and link to each other with extensible canopy, the other end with protect nation's plate afterbody and link to each other; Tail boom front end and caving shield are hinged, and the tail boom other end links to each other with caving shield by the tail boom jack, and plate is in tail boom inside, and plate is linked to each other with tail boom by the plate jack.
Above-mentioned a kind of hydraulic support for large-mining height caving coal, be characterized in: connecting rod is divided into front rod and back link, and front rod is split type double link, and back link is whole single connecting rod, front rod, back link are hinged with caving shield, base respectively, form quadric chain jointly.
Above-mentioned a kind of hydraulic support for large-mining height caving coal, be characterized in: base is the split type base of rigidity, push rod is positioned at the home record of base, the front end of base is provided with bottom lifting device, be connected with the vertical end jack of lifting, the centre is connected with horizontal passing jack, lifts end jack and pass the jack other end to act on the push rod respectively.One end of push rod links to each other with conveyer by connector, and the other end links to each other with base by passing jack.
Above-mentioned a kind of hydraulic support for large-mining height caving coal is characterized in: back timber has the bilateral activity side guard board, and caving shield also has the bilateral activity side guard board; The thruster jack that side guard board is played traction all is installed on back timber and the caving shield.
Above-mentioned a kind of hydraulic support for large-mining height caving coal is characterized in: a side of hydraulic support for large-mining height caving coal is provided with draws back slide jack, and the accent frame jack of firm effect has been installed between back timber and the back timber.
The utility model advantage is big mining height, high workload resistance, can realizes the caving coal, again can be when the thick 4.5m of coal the hydraulic support of full-seam mining.Big mining height is the abbreviation of big mining height comprehensive mechanized coal mining method, is a kind of coal-mining method with world lead level.The utility model maximum support height reaches 4.7m, and working resistance reaches 7000kN.Effect is the supported face top board, the working space of shielding coal-winning machine, conveyer, make coal-winning machine once adopt face height, and the coal under will being adopted by conveyer transports, respectively by coal cutting, move operations such as frame, pushing and sliding and form work cycle, the realization comprehensive mining machineryization is produced continuously, has the effect of caving coal simultaneously.Its major advantage is presented as:
1, support mining height scope is big.4.5m～10m high seam adopts longwall top coal caving, 3.8m～4.5m high seam is made common hydraulic support and is used full-seam mining;
2, working resistance is big;
When 3, using as sublevel caving hydrau lic support, it is low to put the coal position, puts coal rate of extraction height, and coal dust is little when putting coal;
4, do not put the coal dead angle, handling capacity is big, is difficult for blocking up, and drawing effectiveness is good; Plate can be controlled the coal amount of putting, the cutting coarse coal; Adopt two conveyers to make coal cutting put coal and do not disturb mutually, but parallel operations;
5, the coal machine is stressed little;
6, tail boom can swing up and down, and the coarse coal of inbreak is played fragmentation;
7, compliance is strong, reliability is high, compact conformation, support capacity is big, easy to operate, advancing velocity is fast.
Hydraulic support for large-mining height caving coal described in the utility model especially adapts to thick or super high seam fully-mechanized mining working use in gentle dip.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Embodiment 1
As shown in Figure 1, hydraulic support for large-mining height caving coal described in the utility model, comprise described base 1, column 2, back timber 9, front-axle beam 13 and caving shield 7, tail boom 6 and plate 5, back timber 9 is bearing on the base 1 by four root posts 2, the column setting replaces non retern valve, realize chain control, avoid killing support.Base 1 is the split type base of rigidity, push rod 3 is positioned at the home record of base, the front end of base is provided with bottom lifting device, be connected with the vertical end jack 11 of lifting, bottom lifting device is the critical component that reduces base front end specific pressure, guarantees to move smoothly frame, be connected with horizontal passing jack 15 in the middle of the base, lift end jack 11 and act on respectively on the push rod 3 with passing jack 15 other ends.One end of push rod 3 links to each other with conveyer by connector, and the other end links to each other with base 1 by passing jack 15.Front-axle beam 13 and caving shield 7 are hinged with the rear and front end portion of back timber 9 respectively, front-axle beam 13 other ends are bearing on the back timber by the front-axle beam jack, the place ahead of front-axle beam 13 is an extensible canopy 14, extensible canopy 14 links to each other with front-axle beam 13 by the extensible canopy jack, extensible canopy 14 front ends are with to protect nation's plate 12 rear portions hinged, protect nation's plate jack one end and link to each other with extensible canopy, the other end with protect nation's plate in, the rear portion links to each other; Also be connected with connecting rod 4 on the caving shield 7, connecting rod 4 is divided into front rod and back link, and front rod is split type double link, and back link is whole single connecting rod, and front rod, back link are hinged with caving shield 7, base 1 respectively, form quadric chain jointly.This structure is moved good stability after making the whole center of gravity of support.Tail boom 6 front ends and caving shield are hinged, and the caving shield other end links to each other with caving shield by the tail boom jack, and plate 5 is in tail boom 6 inside, and plate 5 is linked to each other with tail boom 6 by the plate jack.Back timber 9 has bilateral activity side guard board 10, and caving shield 7 also has bilateral activity side guard board 8; The thruster jack that side guard board is played traction all is installed on back timber 9 and the caving shield 7.Hydraulic support one side is provided with draws back slide jack, and the accent frame jack of firm effect has been installed between back timber and the back timber.
Claims (5)
1, a kind of hydraulic support for large-mining height caving coal, comprise described base (1), column (2), back timber (9), front-axle beam (13), caving shield (7), tail boom (6) and plate (5), back timber (9) is bearing on the base (1) by four root posts (2), front-axle beam (13) and caving shield (7) are hinged with the rear and front end portion of back timber (9) respectively, also be connected with connecting rod (4) on the caving shield (7), the other end of connecting rod (4) links to each other with base (1), front-axle beam (13) rear end is bearing on the back timber (9) by the front-axle beam jack, it is characterized in that: the place ahead of front-axle beam (13) is extensible canopy (14), extensible canopy (14) links to each other with front-axle beam (13) by the extensible canopy jack, extensible canopy (14) front end is hinged with the rear portion of protecting nation's plate (12), protect nation's plate jack one end and link to each other with extensible canopy, the other end with protect nation's plate afterbody and link to each other; Tail boom (6) front end and caving shield are hinged, and tail boom (6) other end links to each other with caving shield (7) by the tail boom jack, and plate (5) is in tail boom (6) inside, and plate (5) is linked to each other with tail boom (6) by the plate jack.
2, a kind of hydraulic support for large-mining height caving coal according to claim 1, it is characterized in that: connecting rod 4 is divided into front rod and back link, front rod is split type double link, back link is whole single connecting rod, front rod, back link are hinged with caving shield (7), base (1) respectively, form quadric chain jointly.
3, a kind of hydraulic support for large-mining height caving coal according to claim 1 and 2, it is characterized in that: base (1) is the split type base of rigidity, push rod (3) is positioned at the inboard of base, the front end of base is provided with bottom lifting device, the vertical end jack (11) of lifting is housed, the centre is connected with horizontal passing jack (15), lift end jack (11) and pass jack (15) other end and act on the push rod (3), one end of push rod (3) links to each other with conveyer by connector, and the other end links to each other with base (1) by passing jack (15).
4, a kind of hydraulic support for large-mining height caving coal according to claim 3 is characterized in that: back timber (9) has bilateral activity side guard board (10), and caving shield (7) also has bilateral activity side guard board (8); On back timber (9) and the caving shield (7) the thruster jack that side guard board is played traction is installed all.
5, a kind of hydraulic support for large-mining height caving coal according to claim 4 is characterized in that: a side of hydraulic support for large-mining height caving coal is provided with draws back slide jack, and the accent frame jack of firm effect has been installed between back timber and the back timber; Column (2) is provided with alternately non retern valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202270005U CN201314238Y (en) | 2008-12-11 | 2008-12-11 | Great mining height hydraulic bracket for top coal caving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202270005U CN201314238Y (en) | 2008-12-11 | 2008-12-11 | Great mining height hydraulic bracket for top coal caving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314238Y true CN201314238Y (en) | 2009-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202270005U Expired - Fee Related CN201314238Y (en) | 2008-12-11 | 2008-12-11 | Great mining height hydraulic bracket for top coal caving |
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| CN (1) | CN201314238Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042024A (en) * | 2010-11-13 | 2011-05-04 | 枣庄矿业（集团）有限责任公司第二机械厂 | Advance support bracket for sliding top beam |
| CN105443152A (en) * | 2015-12-21 | 2016-03-30 | 枣庄矿业集团高庄煤业有限公司 | Light shielding frame for removing working face |
| CN106382126A (en) * | 2016-11-15 | 2017-02-08 | 徐州工程学院 | Support hydraulic device in high-flexibility mortar working face construction and working method thereof |
-
2008
- 2008-12-11 CN CNU2008202270005U patent/CN201314238Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042024A (en) * | 2010-11-13 | 2011-05-04 | 枣庄矿业（集团）有限责任公司第二机械厂 | Advance support bracket for sliding top beam |
| CN102042024B (en) * | 2010-11-13 | 2012-11-07 | 枣庄矿业（集团）有限责任公司第二机械厂 | Advanced support bracket for sliding top beam |
| CN105443152A (en) * | 2015-12-21 | 2016-03-30 | 枣庄矿业集团高庄煤业有限公司 | Light shielding frame for removing working face |
| CN106382126A (en) * | 2016-11-15 | 2017-02-08 | 徐州工程学院 | Support hydraulic device in high-flexibility mortar working face construction and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20100111 |