CN101440711A - Large extraction high caving roof coal hydraulic support - Google Patents

Large extraction high caving roof coal hydraulic support Download PDF

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Publication number
CN101440711A
CN101440711A CNA2008101592557A CN200810159255A CN101440711A CN 101440711 A CN101440711 A CN 101440711A CN A2008101592557 A CNA2008101592557 A CN A2008101592557A CN 200810159255 A CN200810159255 A CN 200810159255A CN 101440711 A CN101440711 A CN 101440711A
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CN
China
Prior art keywords
jack
base
caving
hydraulic support
back timber
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2008101592557A
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Chinese (zh)
Inventor
江卫
王明南
李景恒
林万令
靖大鹏
刘宪亮
冀庆来
张波
梁开东
孙洪霞
韩河
马军
张严敬
冯栋
田霜
李玉刚
石虎
郑伟
庞静
孙卓辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Second Machinery Factory Of Zaozhuang Coal Mining (group) LLC
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Second Machinery Factory Of Zaozhuang Coal Mining (group) LLC
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Application filed by Second Machinery Factory Of Zaozhuang Coal Mining (group) LLC filed Critical Second Machinery Factory Of Zaozhuang Coal Mining (group) LLC
Priority to CNA2008101592557A priority Critical patent/CN101440711A/en
Publication of CN101440711A publication Critical patent/CN101440711A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a top coal caving hydraulic bracket with large mining height. The hydraulic bracket comprises a base, upright posts, a top beam, a front beam, a shield beam, a tail beam and an insertion 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; the shield beam is also connected with a connecting rod; the front part of the front beam is provided with a telescopic beam which is connected with the front beam through a telescopic beam jack; the front end of the telescopic beam is hinged with the rear part of a protective plate; one end of a protective plate jack is connected with the telescopic beam; the other end pf the protective plate jack is connected with the tail part of the protective 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 a tail beam jack; and the insertion plate is positioned in the inside of the tail beam. The hydraulic bracket has the advantages that the hydraulic bracket has large mining height and high working resistance, can realize top coal caving and can also realize overall height mining once when the thickness of the coal is 4.5 meters.

Description

Hydraulic support for large-mining height caving coal
Technical field
The present invention relates to mining support apparatus, relate 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 object of the invention 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 used in the present invention 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 protects nation's plate jack one end and links to each other with extensible canopy with to protect the rear portion of nation's plate hinged, 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 invention has the advantages that big mining height, high workload resistance, can realize 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.Maximum support height of the present invention 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 of the present invention 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 invention.
The specific embodiment
Embodiment 1
As shown in Figure 1, hydraulic support for large-mining height caving coal of the present invention, 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.
CNA2008101592557A 2008-11-26 2008-11-26 Large extraction high caving roof coal hydraulic support Pending CN101440711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008101592557A CN101440711A (en) 2008-11-26 2008-11-26 Large extraction high caving roof coal hydraulic support

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Application Number Priority Date Filing Date Title
CNA2008101592557A CN101440711A (en) 2008-11-26 2008-11-26 Large extraction high caving roof coal hydraulic support

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101906982A (en) * 2010-09-02 2010-12-08 郑州煤矿机械集团股份有限公司 Two-stage side guard transition bracket for large height mining face
CN102207003A (en) * 2010-03-31 2011-10-05 三一重型装备有限公司 Advance support bracket set special for conveyor gateway on fully-mechanized coal mining working surface
CN102562114A (en) * 2012-02-15 2012-07-11 重庆大江工业有限责任公司 End hydraulic bracket with rotatable top beam
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
CN104695996A (en) * 2015-02-12 2015-06-10 武文成 Full loading self-moving anti-toppling and anti-slipping hydraulic support
CN104858007A (en) * 2015-06-04 2015-08-26 中煤张家口煤矿机械有限责任公司 Electric direct drive toothed-roll type continuous crushing device for fully mechanized mining face transportation unloading zone
CN106089276A (en) * 2016-07-22 2016-11-09 刘丹 A kind of rotary coal-mine hydraulic support
CN108547654A (en) * 2018-06-28 2018-09-18 河南万合机械有限公司 The suspended caving roof coal hydraulic support and its application method of coal amount are put convenient for control
CN110529164A (en) * 2019-09-18 2019-12-03 恒岳重工有限责任公司 The positive double leval jib hydraulic support of polytypic with Telescopic
CN111734468A (en) * 2020-08-01 2020-10-02 袁秋根 Vehicle type hydraulic support for coal mine
CN112196592A (en) * 2020-09-02 2021-01-08 六盘水师范学院 Can prevent caving coal support of flexible roof beam skew
CN113803097A (en) * 2020-06-17 2021-12-17 李信斌 Support equipment

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207003A (en) * 2010-03-31 2011-10-05 三一重型装备有限公司 Advance support bracket set special for conveyor gateway on fully-mechanized coal mining working surface
CN101906982A (en) * 2010-09-02 2010-12-08 郑州煤矿机械集团股份有限公司 Two-stage side guard transition bracket for large height mining face
CN102562114A (en) * 2012-02-15 2012-07-11 重庆大江工业有限责任公司 End hydraulic bracket with rotatable top beam
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
CN104695996A (en) * 2015-02-12 2015-06-10 武文成 Full loading self-moving anti-toppling and anti-slipping hydraulic support
CN104695996B (en) * 2015-02-12 2018-04-03 武文成 It is a kind of to carry entirely from anti-skidding hydraulic support of being shifted elsewhere for garrison duty
CN104858007A (en) * 2015-06-04 2015-08-26 中煤张家口煤矿机械有限责任公司 Electric direct drive toothed-roll type continuous crushing device for fully mechanized mining face transportation unloading zone
CN106089276A (en) * 2016-07-22 2016-11-09 刘丹 A kind of rotary coal-mine hydraulic support
CN108547654A (en) * 2018-06-28 2018-09-18 河南万合机械有限公司 The suspended caving roof coal hydraulic support and its application method of coal amount are put convenient for control
CN108547654B (en) * 2018-06-28 2024-01-26 河南万合机械有限公司 Suspension top coal caving hydraulic support convenient for controlling coal caving amount and use method thereof
CN110529164A (en) * 2019-09-18 2019-12-03 恒岳重工有限责任公司 The positive double leval jib hydraulic support of polytypic with Telescopic
CN113803097A (en) * 2020-06-17 2021-12-17 李信斌 Support equipment
CN113803097B (en) * 2020-06-17 2024-05-03 李信斌 Supporting equipment
CN111734468A (en) * 2020-08-01 2020-10-02 袁秋根 Vehicle type hydraulic support for coal mine
CN111734468B (en) * 2020-08-01 2022-01-04 盐城市群力工矿机械有限公司 Vehicle type hydraulic support for coal mine
CN112196592A (en) * 2020-09-02 2021-01-08 六盘水师范学院 Can prevent caving coal support of flexible roof beam skew

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Open date: 20090527