CN103410547A - Thin seam hydraulic support for coal mines - Google Patents

Thin seam hydraulic support for coal mines Download PDF

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Publication number
CN103410547A
CN103410547A CN2013103839733A CN201310383973A CN103410547A CN 103410547 A CN103410547 A CN 103410547A CN 2013103839733 A CN2013103839733 A CN 2013103839733A CN 201310383973 A CN201310383973 A CN 201310383973A CN 103410547 A CN103410547 A CN 103410547A
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hinged
formula base
oil cylinder
box
grade
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CN2013103839733A
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CN103410547B (en
Inventor
倪和平
刘富营
张国志
张继业
张定堂
李宁宁
余龙
李志明
边彦胜
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Zhengzhou Coal Mining Machinery Group Co Ltd
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Zhengzhou Coal Mining Machinery Group Co Ltd
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Abstract

The invention discloses a thin seam hydraulic support for coal mines. The thin seam hydraulic support for the coal mines comprises a crotch type base, a box-shaped top beam, front hydraulic vertical columns and rear hydraulic vertical columns. The box-shaped top beam is of an integral type structure, and the rear portion of the box-shaped top beam is of a bevel structure inclining downwards. Top ends of the front hydraulic vertical columns and the rear hydraulic vertical columns are respectively hinged to the middle portion and the rear portion of the box-shaped top beam, and the bottom ends of the front hydraulic vertical columns and the rear hydraulic vertical columns are respectively hinged to the middle portion of the crotch type base. An oscillating bar is hinged to the rear end of the box-shaped top beam, and the lower end of the oscillating bar is hinged to the crotch type base. Bottom lifting oil cylinders are arranged at corresponding positions on two sides of the front portion of the crotch type base. A pushing oil cylinder is arranged at the crotch position of the crotch type base along the longitudinal direction, the end portion of a piston rod of the pushing oil cylinder is hinged to a pushing rod, and the rear portion of a cylinder body of the pushing oil cylinder is hinged to the front end of the crotch type base. The thin seam hydraulic support for the coal mines has the advantages of meeting exploiting requirements for lowest supporting height of thin seams and ultrathin seams.

Description

The colliery hydraulic support for low coal seam
Technical field
The present invention relates to coal-mine hydraulic support, especially relate to a kind of colliery hydraulic support for low coal seam for girdle, ultra-thin coal seam exploitation.
Background technology
Rich coal resources in China, storage capacity is large.In coal reserves, (thickness is less than the coal seam of 1.3 meters and is called girdle girdle, thickness is less than the coal seam of 0.8 meter and is called ultra-thin coal seam) recoverable reserves be about 61.5 hundred million tons, account for 18% of national coal gross reserves, and the yield of girdle only accounts for 7.32% of national coal total amount.Trace it to its cause, under girdle, ultra-thin coal seam condition, the minimum supporting height of hydraulic support is only 0.6~0.8 meter, conventional hydraulic rack structure can't realize so hanging down the fully-mechanized mining of supporting height at present, therefore cause a lot of mining areas to abandon the exploitation of girdle, ultra-thin coal seam, the utilization of resources, mine construction etc. has been caused to great waste.
Summary of the invention
The object of the invention is to provide a kind of colliery hydraulic support for low coal seam for girdle, ultra-thin coal seam exploitation.
For achieving the above object, the present invention can take following technical proposals:
Colliery of the present invention hydraulic support for low coal seam, comprise out a grade formula base, box back timber, forward and backward hydraulic vertical prop; Described box back timber is monolithic construction, and box back timber rear portion is downward-sloping ramp structure; The top of described forward and backward hydraulic vertical prop is hinged with middle part, the rear portion of box back timber respectively, and the bottom of forward and backward hydraulic vertical prop is hinged with the described grade middle part of formula base of opening respectively; The rear end of box back timber is hinged with fork, the lower end of described fork with open a grade formula base and be hinged; Being positioned at out a grade formula base front part sides corresponding position is respectively equipped with and lifts end oil cylinder; At grade place that opens that opens grade formula base, longitudinally be provided with the passing oil cylinder, the piston rod end of described passing oil cylinder is hinged with the push rod longitudinally arranged, and passes the cylinder body rear portion of oil cylinder and open a grade formula base front end to be hinged.
Described fork lower end be arranged on the described ear seat of opening on grade formula base and be hinged.
On described box back timber, slide and be provided with hydraulic control box.
The invention has the advantages that the rack body structural member is few, saved the caving shield mechanism 13, linkage 14(of conventional stent as shown in Figure 3), the modularization that is easy to simple in structure, the support overall weight is light.Forward and backward hydraulic vertical prop is arranged to down the Eight characters or inverted v-shaped structure, whole stress is good, improved the supporting intensity of support, supporting intensity improves more than 10% than conventional bracket structure, has met girdle, the minimum supporting height of ultra-thin coal seam and be only the exploitation requirement of 0.6~0.8 meter.Adopt the inversion type advancing jack, namely the piston rod end of described passing oil cylinder is hinged with the push rod longitudinally arranged, and passes the cylinder body rear portion of oil cylinder and open a grade formula base front end to be hinged, and realizes that large-tonnage moves frame, is convenient to the I&M of down-hole.Open a grade formula base front end both sides setting and lift end jack, saved and opened grade central space of formula base, not only improved row's float coal performance, made to move frame more smooth, and can effectively prevent out the workload that float coal is cleared up in a grade formula base front end bundle end, minimizing, reduced workman's labour intensity.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation that the present invention is in supporting height of the end.
Fig. 3 is hydraulic rack structure schematic diagram of the prior art.
The specific embodiment
As shown in Figure 1, 2, colliery of the present invention hydraulic support for low coal seam, comprise out a grade formula base 1, box back timber 2, hydraulic vertical prop 4 after two front hydraulic vertical props 3 that are arranged side by side and two; Described box back timber 2 is monolithic construction, and box back timber 2 rear portions are downward-sloping inclined-plane 5 structures; The top of described forward and backward hydraulic vertical prop 3,4 is hinged with middle part, the rear portion of box back timber 2 respectively, and the bottom of forward and backward hydraulic vertical prop 3,4 is hinged with the described grade middle part of formula base 1 of opening respectively; The rear end of box back timber 2 is hinged with fork 6, the lower end of described fork 6 with open a grade formula base 1 and be hinged; Being positioned at out grade formula base 1 front part sides corresponding position is respectively equipped with and lifts end oil cylinder 7; At grade place that opens that opens grade formula base 1, longitudinally be provided with the passing oil cylinder, piston rod 8 ends of described passing oil cylinder are hinged with the push rod 10 longitudinally arranged, and pass cylinder body 9 rear portions of oil cylinder and open grade formula base 1 front end to be hinged.For improving fork 6 and opening grade bonding strength at formula base 1 place, fork 6 lower ends are hinged with the ear seat 11 be fixed on out on grade formula base 1.For ease of to the high and low adjustment operation in hydraulic support stand position, hydraulic control box 12 is slidably arranged on box back timber 1.

Claims (3)

1. a colliery hydraulic support for low coal seam, comprise out a grade formula base (1), box back timber (2), forward and backward hydraulic vertical prop (3,4); It is characterized in that: described box back timber (2) is monolithic construction, and box back timber (2) rear portion is downward-sloping inclined-plane (5) structure; The top of described forward and backward hydraulic vertical prop (3,4) is hinged with middle part, the rear portion of box back timber (2) respectively, and the bottom of forward and backward hydraulic vertical prop (3,4) is hinged with the described grade middle part of formula base (1) of opening respectively; The rear end of box back timber (2) is hinged with fork (6), the lower end of described fork (6) with open a grade formula base (1) and be hinged; Being positioned at out grade formula base (a 1) front part sides corresponding position is respectively equipped with and lifts end oil cylinder (7); At grade place that opens that opens grade formula base (1), longitudinally be provided with the passing oil cylinder, the piston rod of described passing oil cylinder (8) end is hinged with the push rod (10) longitudinally arranged, and passes cylinder body (9) rear portion of oil cylinder and open grade formula base (a 1) front end to be hinged.
2. colliery according to claim 1 hydraulic support for low coal seam is characterized in that: described fork (6) lower end be arranged on the described ear seat (11) of opening on grade formula base (1) and be hinged.
3. colliery according to claim 1 and 2 hydraulic support for low coal seam, is characterized in that: be provided with hydraulic control box (12) upper slip of described box back timber (1).
CN201310383973.3A 2013-08-29 2013-08-29 Thin seam hydraulic support for coal mines Active CN103410547B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310383973.3A CN103410547B (en) 2013-08-29 2013-08-29 Thin seam hydraulic support for coal mines

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Application Number Priority Date Filing Date Title
CN201310383973.3A CN103410547B (en) 2013-08-29 2013-08-29 Thin seam hydraulic support for coal mines

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CN103410547A true CN103410547A (en) 2013-11-27
CN103410547B CN103410547B (en) 2016-08-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265344A (en) * 2014-10-17 2015-01-07 沈阳天安矿山机械股份有限公司 Conveyor unloading part rear-mounted end hydraulic support
CN107035406A (en) * 2017-05-26 2017-08-11 中国矿业大学 A kind of three-soft seam is faced upward, underhand stopes support anti-plug bottom method
CN109736868A (en) * 2018-12-11 2019-05-10 中国矿业大学 Fully mechanized coal face hydraulic support elapses push rod pose sensing device, fully mechanized coal face hydraulic support passage transfer bar mechanism and method

Citations (7)

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Publication number Priority date Publication date Assignee Title
CN201190574Y (en) * 2008-05-26 2009-02-04 郑州四维机电设备制造有限公司 Rocker type hydraulic support at fully-mechanized mining working faces for thin seam
CN201574768U (en) * 2009-12-15 2010-09-08 山东矿机集团股份有限公司 Hydraulic support of composite mining of thin coal seam of large height-adjusting rate breaking machine
CN102536286A (en) * 2010-12-09 2012-07-04 郑州四维机电设备制造有限公司 Shield-type hydraulic support for thin coal seam
CN102628369A (en) * 2012-04-18 2012-08-08 中国煤矿机械装备有限责任公司 Full-automatic electro-hydraulic control system for hydraulic support
CN102748054A (en) * 2012-07-03 2012-10-24 三一重型装备有限公司 Hydraulic bracket pushing mechanism and hydraulic bracket
CN202745908U (en) * 2012-08-17 2013-02-20 泰安市大广工程机械配件有限公司 Bottom lifting device for mine hydraulic support
CN203463130U (en) * 2013-08-29 2014-03-05 郑州煤矿机械集团股份有限公司 Thin seam hydraulic support for coal mines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201190574Y (en) * 2008-05-26 2009-02-04 郑州四维机电设备制造有限公司 Rocker type hydraulic support at fully-mechanized mining working faces for thin seam
CN201574768U (en) * 2009-12-15 2010-09-08 山东矿机集团股份有限公司 Hydraulic support of composite mining of thin coal seam of large height-adjusting rate breaking machine
CN102536286A (en) * 2010-12-09 2012-07-04 郑州四维机电设备制造有限公司 Shield-type hydraulic support for thin coal seam
CN102628369A (en) * 2012-04-18 2012-08-08 中国煤矿机械装备有限责任公司 Full-automatic electro-hydraulic control system for hydraulic support
CN102748054A (en) * 2012-07-03 2012-10-24 三一重型装备有限公司 Hydraulic bracket pushing mechanism and hydraulic bracket
CN202745908U (en) * 2012-08-17 2013-02-20 泰安市大广工程机械配件有限公司 Bottom lifting device for mine hydraulic support
CN203463130U (en) * 2013-08-29 2014-03-05 郑州煤矿机械集团股份有限公司 Thin seam hydraulic support for coal mines

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Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265344A (en) * 2014-10-17 2015-01-07 沈阳天安矿山机械股份有限公司 Conveyor unloading part rear-mounted end hydraulic support
CN107035406A (en) * 2017-05-26 2017-08-11 中国矿业大学 A kind of three-soft seam is faced upward, underhand stopes support anti-plug bottom method
CN107035406B (en) * 2017-05-26 2019-03-19 中国矿业大学 A kind of three-soft seam faces upward, underhand stopes bracket anti-plug bottom method
CN109736868A (en) * 2018-12-11 2019-05-10 中国矿业大学 Fully mechanized coal face hydraulic support elapses push rod pose sensing device, fully mechanized coal face hydraulic support passage transfer bar mechanism and method

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