CN207847670U - Arched tunnel driving moves into covering device certainly without support repeatedly - Google Patents

Arched tunnel driving moves into covering device certainly without support repeatedly Download PDF

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Publication number
CN207847670U
CN207847670U CN201721861879.4U CN201721861879U CN207847670U CN 207847670 U CN207847670 U CN 207847670U CN 201721861879 U CN201721861879 U CN 201721861879U CN 207847670 U CN207847670 U CN 207847670U
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China
Prior art keywords
support
development machine
sliding
repeatedly
hoistable platform
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CN201721861879.4U
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Chinese (zh)
Inventor
郭文孝
石涛
李刚
周凯
闫殿华
宋涛
李莉
王�琦
杨晓明
朱天龙
张银星
李彬彬
张少鹏
桑盛远
成志峰
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Taiyuan Institute of China Coal Technology and Engineering Group
Shanxi Tiandi Coal Mining Machinery Co Ltd
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Taiyuan Institute of China Coal Technology and Engineering Group
Shanxi Tiandi Coal Mining Machinery Co Ltd
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Application filed by Taiyuan Institute of China Coal Technology and Engineering Group, Shanxi Tiandi Coal Mining Machinery Co Ltd filed Critical Taiyuan Institute of China Coal Technology and Engineering Group
Priority to CN201721861879.4U priority Critical patent/CN207847670U/en
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Abstract

The utility model belongs to the technical field of the comprehensive pick face gib of underground coal mine, in order to solve the above problem existing for existing underground coal mine gib, the utility model provides a kind of arched tunnel driving without support repeatedly from moving into covering device, including development machine, support hoistable platform and several outer support devices, outer support device uses and the matched arch support of arch digging laneway, it is mutually parallel between outer support device, straddle on development machine to arch digging laneway formed support, support hoistable platform be set to development machine at the top of and can be freely lifted to outer support device upper contact, outer support device can be pushed ahead along driving line of travel to development machine front end after being contacted with support hoistable platform with support hoistable platform.The utility model is that driving face safety and high efficiency creates reliable, flexible supporting condition, it can be achieved to support the nothing of top plate repeatedly, ensure the integrality of top plate, while the mechanical mining technique to improving development end, improves driving speed and production efficiency is of great significance.

Description

Arched tunnel driving moves into covering device certainly without support repeatedly
Technical field
The utility model belongs to the technical field of the comprehensive pick face gib of underground coal mine, and in particular to a kind of coal roadway tunneling without Self-advancing Device is supported repeatedly.
Background technology
Before the development of speedy drivage temporary shoring bracket, what most domestic underground coal mine driving face generally used faces When supporting have:First, hanging ring tube-through type forestope gib;Second is that vehicle-mounted temporary support device for development machine;Third, using more Row's hydraulic prop increases intensity I-steel capplce method of support etc..Although these modes alleviate heading driver to a certain extent It meets head on as face the pressure of supporting, improves the supporting situation of working face, but there is also many deficiencies in actual use Locate, larger hidden danger is still had in safety.The safety problem of temporary support for drivage face is that long-standing problem coal mine is quickly dug It is often caused into the technical barrier of safety in production for many years since top plate cannot obtain effective supporting in time after tunnelling Top plate falls cash casualty accident, is unable to give full play the efficiency of high-performance development machine.
(1)Hanging ring tube-through type forestope gib
Hanging ring wears formula forestope gib, is mainly made of hanging ring and forestope, ring is fixed on top plate by anchor pole On, forestope leans out rear supporting roof, main problem in hanging ring:1. steel and top plate are stopped in fact using half round timber and timber wedge The back of the body is tight, and without setting load, there are great security risks;2. forestope is that point or line contact with top plate, cannot be complete to empty top zone Face carries out effective support, worse if encountering roof cracking using effect;3. operating process is complicated, artificial movement is needed, is worked Intensity is big, and gib speed is slow, efficiency is low;4. bolting with wire mesh mode operator in lapping has to enter into empty top zone operation, There are great security risks.
(2)Vehicle-mounted temporary support device for development machine
Device is mainly made of left and right pedestal, left and right rack, left and right rollover stand, left and right folding arm frame and upper frame beam, is mounted on Development machine front middle part.When development machine normally tunnels, which is contracted in cutting speed reducer back, does not interfere the fortune of development machine Dynamic and cutting operation function;It needs to control the position of folding stand by operating the hydraulic control valve of supporting folding stand when supporting, So that folding stand stretching is supported in top plate, completes protective function.Its major defect:It, cannot supporting exposure completely 1. supporting area is small Top plate;2. operating personnel's still operation in the case where sky pushes up when bolting with wire mesh, there are great security risks;3. the device is to top plate Bad adaptability.Roof and floor fluctuating is encountered when driving, tunnel is lower, and airborne supporting cannot be put to good use open completely, and just support is not achieved Power, there are larger security risks.
(3)Multiple rows of hydraulic prop increases intensity I-steel capplce method of support
It is first then tapped again rapidly using hydraulic single prop by empty top zone firm supporting after machine pick, waits locating After having managed cash living, float stone, rapidly with monomer column by I-steel and steel wire top to top straight portion, networking, protect top plate. At least three people, which coordinate, when installing every hydraulic prop carries out gib, and labor intensity is big, of high cost, and prop drawing is dangerous Property it is big, there are security risks, and influence personnel and equipment and pass through, and supporting effect and safety guarantee are undesirable.
Invention content
The utility model provides a kind of arch to solve the above problem existing for existing underground coal mine gib Shape tunnelling moves into covering device certainly without support repeatedly.
The utility model adopts the following technical solution:
A kind of arched tunnel driving without support repeatedly from moving into covering device, including development machine, support hoistable platform and several Outer support device, outer support device use with the matched arch support of arch digging laneway, be mutually parallel between outer support device, Straddle on development machine to arch digging laneway formed support, support hoistable platform be set to development machine at the top of and can be freely lifted to With outer support device upper contact, outer support device can be advanced with support hoistable platform along driving after being contacted with support hoistable platform Line is pushed ahead to development machine front end.
The outer support device includes the arch support frame that two framves are mutually parallel, and two frame supporting racks are connected by lateral connection beam It connects, every frame supporting rack includes supporting beam, end beam and column, and supporting beam and end beam are Curved beam, two groups of end beam difference Rounding off is articulated with the Curved beam that supporting beam left and right ends constitute matching support arch digging laneway;The column is articulated with end The tail end of head beam carries out symmetric support to Curved beam both ends;The end beam, which is equipped with, promotes end beam around the hinge of itself and supporting beam The end oil cylinder that axially inner side rotation is withdrawn, end oil cylinder are driven by hydraulic motor.
The hinged place of the end beam and column is equipped with wall supporting beam, and wall supporting beam is arc beam section, is seamlessly transitted with end beam Connection.
It is hinged with several pallets for adapting to top plate fluctuations in the top cambered surface of the supporting beam, pallet is and supporting beam The cambered plate that radius is identical, inner concave is in the same direction.
The end beam, which is equipped with, prevents the limited block that wall supporting beam tilts outward, i.e., when wall supporting beam is unfolded outward most Big extreme position is the arc that the concyclic heart is constituted with end beam, prevents wall supporting beam from sticking up interference tunnel outside with respect to end beam.
Jointing clip and protective plate are equipped between the same heel post of the outer support device, the inside of wall supporting beam is equipped with for protection The sliding slot that plate moves up and down.
The support hoistable platform includes crossbearer, sliding trolley and lifting gear, and lifting gear is installed on development machine, horizontal It is set up at the top of lifting gear and is freely lifted with lifting gear;The crossbearer is equipped with sliding-rail groove, and confession is equipped in sliding-rail groove The sliding rail of sliding trolley sliding motion, sliding trolley are contacted with the supporting beam of outer support device with lifting gear, are detached from.
The lifting gear uses hydraulic lifting, including is symmetrically set in the lifting cylinder of development machine both sides, outside lifting cylinder Driving hydraulic motor is connect, the cylinder body of lifting cylinder is fixed on driving Rack Body, and the piston rod of lifting cylinder is connect with crossbearer.
Telescopic oil cylinder is equipped between the crossbearer and sliding rail, the cylinder body of telescopic oil cylinder is fixed on crossbearer, sliding rail with it is flexible The piston rod of oil cylinder is connected and can be moved forward along sliding-rail groove with piston rod, and telescopic oil cylinder is driven by hydraulic motor.
The utility model is disposed on machine body of boring machine, is integrally moved forward with development machine group.In driving face, It straddles and arranges support device on development machine, after development machine tunnels forward, the hoistable platform of machine body of boring machine rises, until sliding Trolley is contacted with support means bottom portion, and support device packs up column, and support device drops on the sliding trolley of hoistable platform, is received End oil cylinder so that end beam receives vertical with supporting beam;Drop hoistable platform to support device is detached from top plate and can be along side arm Support device inner space passes through, and sliding trolley carries support device and moved forward along sliding rail at this time, when arriving sliding rail front end, this When stretch telescopic oil cylinder between supporting rack and sliding rail again, so that sliding rail is sent support device to working face along sliding-rail groove forward movement and meet Head.It rises hoistable platform to support device and contacts top plate, stretching end oil cylinder keeps it parallel with supporting beam, stretches the column of support cylinder and makes Support device stretching top plate.Hoistable platform drops, and the telescopic oil cylinder between revenue and expenditure support and sliding rail makes sliding rail to initial position.
The utility model changes traditional support pattern, easily realizes tunneling boring in time actively without roof supporting repeatedly, favorably In the Safety Control of Roof of mine.
(1)Coal roadway tunneling is mainly by the sliding trolley of hoistable platform by working face rear portion without support self-advancing Device repeatedly Support device be transported to working face and meet head on, immediate support is carried out to tunnel, avoids the support repeatedly to tunnel, is realized without repeatedly Supporting ensures the integrality of back.
(2)Hoistable platform is arranged on machine body of boring machine, is moved forward with development machine, and hoistable platform is internally provided with lifting oil Cylinder shares fuel tank with development machine and provides power for its lifting.
(3)Hoistable platform is equipped with sliding rail, arranges telescopic oil cylinder between sliding rail and crossbearer, sliding trolley by support device send to Sliding rail front end, then so that sliding rail is moved forward along sliding-rail groove by the elastic of sliding rail, support device is sent to working face and is met head on.
(4)Supporting rack also can be used alone, and at this time to the supporting related frequency met head on, be suitable for coal roadway tunneling tunnel condition When bad.Two frame supporting racks are combined into one to form support device.
(5)The supporting rack both ends of support device are equipped with end beam, control that it is flexible by end oil cylinder, end beam when stretching Can supporting roof, end beam is vertical with supporting beam when withdrawal, can shorten the length of supporting rack and support device, ensures that it can be Appropriate space Forward between development machine and support device.
(6)Hoistable platform, support device and development machine share fuel tank, provide power source for it, can accordingly reduce equipment Power source ensures the safe operation of underground, cost-effective.
(7)It is equipped with wall supporting beam between column and end beam, can ensure the stability of support device accordingly, while can be to coal wall Wall caving play protective action.
(8)Arrange protective plate between the supporting beam of support device, between the beam of end, can prevent the bastard coal of top plate fall hurt sb.'s feelings with And opposite end hair oil cylinder plays a protective role;With jointing clip is equipped between heel post, protective plate, wall supporting beam are disposed on jointing clip Between be equipped with sliding slot, when column up-down, protective plate can simultaneously be lifted along sliding slot with column, play the role of full protection to coal wall.
(9)End beam is equipped with limited block, prevents wall supporting beam deflection inwardly, plays position-limiting action to wall supporting beam, simultaneously Ensure the inner space of development machine and support device.
(10)Pallet can be set in the supporting beam of supporting rack, pallet is connect with supporting beam spherical shape, and the fluctuating for being suitable for top plate becomes Change.Column bottom sets cone nail, can carry out bundle bottom in hard or out-of-flatness bottom plate, stabilization is played to supporting rack.
The utility model has following advantageous effect:Mainly by the sliding trolley of hoistable platform by working face rear portion Support device be transported to working face and meet head on, immediate support is carried out to tunnel, avoids the support repeatedly to tunnel, is realized without repeatedly Supporting ensures the integrality of back, is conducive to the Safety Control of Roof of coal mine headwork, and safety is created for comprehensive pick face Working environment.Supporting program can be simplified, avoid the security risk of operating personnel's operation under empty push up.Improve working in driving face of coal mine machine Tool supporting work degree greatly improves driving speed and working efficiency, and the labour for reducing excavation cost and operating personnel is strong Degree ensures personnel safety.
The utility model is that driving face safety and high efficiency creates reliable, flexible supporting condition, it can be achieved that top The nothing of plate supports repeatedly, ensures the integrality of top plate, while the mechanical mining technique to improving development end, improves driving speed It is of great significance with production efficiency.
Description of the drawings
Fig. 1,2,3 are respectively the general assembly front view, side view and vertical view of the utility model;
Fig. 4,5,6 are respectively connection front view, side view and the vertical view of hoistable platform and development machine;
Fig. 7,8,9 are respectively front view, side view and the vertical view of outer support device;
In figure:1. development machine, 2. support hoistable platforms, 3. outer support devices, 4. crossbearers, 5. lifting gears, 6. lifting oil Cylinder, 7. sliding trolleys, 8. sliding rails, 9. sliding-rail grooves, 10. telescopic oil cylinders, 11 hydraulic motors, 12. supporting racks, 13. supporting beams, 14. End beam, 15. axis pins, 16 end oil cylinders, 17. columns, 18. wall supporting beams, 19. tie-beams.
Specific implementation mode
In conjunction with attached drawing, specific embodiment of the present utility model is described further:
Arched tunnel driving described in the utility model is mainly by hoistable platform from covering device is moved into without support repeatedly The support device at working face rear portion is transported to working face and met head on by sliding trolley, is carried out immediate support to tunnel, is avoided to tunnel Support repeatedly, realize without supporting repeatedly, ensure the integrality of back.Be conducive to the roof safety pipe of coal mine headwork Reason creates safe working environment for comprehensive pick face.Supporting program can be simplified, avoid the safety of operating personnel's operation under empty push up Hidden danger.Working in driving face of coal mine mechanization supporting work degree is improved, driving speed and working efficiency are greatly improved, reduces excavation cost And the labor intensity of operating personnel, provide powerful guarantee for the safety of operating personnel.Coal roadway tunneling moves certainly without support repeatedly Device is mainly made of development machine, support hoistable platform and support device.Hoistable platform arrangement and machine body of boring machine are supported, with pick It moves forward into machine.Sliding trolley straddles on the sliding rail with hoistable platform, realizes sliding trolley from shifting by hydraulic motor.Sliding rail and branch Telescopic oil cylinder is arranged between support, is made sliding rail so that support device is reached working face in sliding-rail groove Forward by telescopic oil cylinder and is met head on.
Specifically, include mainly development machine 1, airborne support hoistable platform 2 and support device 3.The support lifting Platform 2 includes crossbearer 4, lifting gear 5, lifting cylinder 6, sliding trolley 7, sliding rail 8, sliding-rail groove 9, telescopic oil cylinder 10, hydraulic pressure horse Up to 11.The support device 3 include two frame supporting racks 12 composition, every frame supporting rack 12 mainly by supporting beam 13, end beam 14, Axis pin 15, end oil cylinder 16, column 17 and wall supporting beam 18.It is connected by tie-beam 19 between two frame supporting racks 12.
The support hoistable platform 2 is mainly arranged on 1 fuselage of development machine machine, integral with 1 group of development machine, by pick It is moved forward into machine, hoistable platform is internally provided with lifting cylinder 6.Hoistable platform 2, support device 3 and development machine 1 share fuel tank, Power source is provided for it, can accordingly reduce the power source of equipment, ensures the safe operation of underground, it is cost-effective.
The crossbearer 4 of the support hoistable platform 2 is equipped with sliding-rail groove 9, and sliding rail 8 is disposed in sliding-rail groove 9.Crossbearer 4 with It is disposed with telescopic oil cylinder 10 between sliding rail 8, can realize that along the elastic of sliding-rail groove 9, support is filled for sliding rail 8 by telescopic oil cylinder 10 It sets 3 and send to working face and meet head on.
The sliding trolley 7 is straddled on sliding rail 8, and hydraulic motor 11 is housed on sliding trolley 7, is it by development machine 1 Power source is provided, is moved certainly before and after realizing sliding trolley 7 by hydraulic motor 11.
The supporting rack 12 of the support device 3 also can be used alone, and at this time to the supporting related frequency met head on, be suitable for When coal roadway tunneling tunnel condition is bad.Two frame supporting racks 12 are combined into one to form support device.
13 left and right ends of supporting beam of the support device 3 are respectively connected with end beam by axis pin 15 and end oil cylinder 16 14.Control that it is flexible by end oil cylinder 16, when stretching end beam 14 can supporting roof, end beam 14 and supporting beam 13 when withdrawal Vertically, the length that can shorten supporting rack 12 and support device 3 ensures the appropriate sky that it can be between development machine 1 and support device 3 Between move forward.Two frame supporting beams 13,14 intermediate arrangement of end beam have protective plate 20, can prevent the bastard coal of top plate from falling and hurt sb.'s feelings.
It is equipped with wall supporting beam 18 between the column 17 and end beam 14 of the support device 3, can ensure support device accordingly Stability, while protective action can be played to the wall caving of coal wall.
The end beam 14 of the support device 3 connects wall supporting beam 18 by axis pin 15, and 18 arranged beneath of wall supporting beam has vertical Column 17.With jointing clip and protective plate is equipped between heel post, protective plate can be moved up and down in the sliding slot on the inside of homonymy wall supporting beam, right Lateral wall plays full protection.End beam 14 is equipped with limited block, and position-limiting action is played to wall supporting beam 18.
Pallet can be set in the supporting beam of the supporting rack 12, pallet is connect with supporting beam spherical shape, is suitable for rising for top plate Volt variation.17 bottom of column sets cone nail, can carry out bundle bottom in hard or out-of-flatness bottom plate, stabilization is played to supporting rack.
The utility model can be realized supports the nothing of back repeatedly, ensures the integrality of back.Be conducive to coal The Safety Control of Roof of mine headwork creates safe working environment for comprehensive pick face.Its is compact-sized, and operation is flexible, energy Enough greatly improve driving speed and working efficiency.Its hoistable platform becomes one with fully-mechanized digging machine, simplifies supporting program, passes through cunning That moves trolley send support device from movement, realizes automated job, reduces the original round-trip gib time;It is original to reduce worker The labour for shouldering fortune, removing monomer realizes driving face mechanization gib, reduces labor intensity.Realize pick simultaneously Into the tunneling boring supporting of the top plate of working face empty top zone, ensure that the operating personnel of driving face and development machine are in safe shape State.

Claims (9)

1. a kind of arched tunnel driving moves into covering device certainly without support repeatedly, it is characterised in that:Including development machine(1), support rise Platform drops(2)With several outer support devices(3), outer support device(3)Using with the matched arch support of arch digging laneway, outside Support device(3)Between be mutually parallel, straddle in development machine(1)On to arch digging laneway formed support, support hoistable platform (2)Set on development machine(1)Top and can be freely lifted to outer support device(3)Upper contact, outer support device(3)With support Hoistable platform(2)It can be with support hoistable platform after contact(2)It is pushed ahead to development machine along driving line of travel(1)Front end.
2. arched tunnel driving according to claim 1 moves into covering device certainly without support repeatedly, it is characterised in that:It is described outer Support device(3)The arch support frame being mutually parallel including two framves(12), two frame supporting racks(12)Pass through lateral connection beam(19) Connection, every frame supporting rack(12)Including supporting beam(13), end beam(14)And column(17), supporting beam(13)With end beam(14) It is Curved beam, two groups of end beams(14)Rounding off is articulated with supporting beam respectively(13)Left and right ends constitute matching support arch The Curved beam of digging laneway;The column(17)It is articulated with end beam(14)Tail end to Curved beam both ends carry out symmetric support; The end beam(14)It is equipped with and promotes end beam(14)Around itself and supporting beam(13)Hinged shaft rotate the end of withdrawal inwardly Oil cylinder(16), end oil cylinder(16)By hydraulic motor(11)Driving.
3. arched tunnel driving according to claim 2 moves into covering device certainly without support repeatedly, it is characterised in that:The end Head beam(14)With column(17)Hinged place be equipped with wall supporting beam(18), wall supporting beam(18)For arc beam section, with end beam(14)It is flat It slips over and crosses connection.
4. arched tunnel driving according to claim 3 moves into covering device certainly without support repeatedly, it is characterised in that:The branch Support beam(13)Top cambered surface on be hinged with several pallets for adapting to top plate fluctuations, pallet is and supporting beam(13)Radius phase Cambered plate same, inner concave is in the same direction.
5. arched tunnel driving according to claim 4 moves into covering device certainly without support repeatedly, it is characterised in that:The end Head beam(14)Being equipped with prevents wall supporting beam(18)The limited block tilted outward.
6. arched tunnel driving according to claim 5 moves into covering device certainly without support repeatedly, it is characterised in that:It is described outer Support device(3)Same heel post(17)Between be equipped with jointing clip and protective plate, wall supporting beam(18)Inside be equipped with for protective plate The sliding slot moved up and down.
7. arched tunnel driving according to claim 6 moves into covering device certainly without support repeatedly, it is characterised in that:The branch Support hoistable platform(2)Including crossbearer(4), sliding trolley(7)And lifting gear, lifting gear are installed on development machine(1)On, crossbearer (4)It is freely lifted at the top of lifting gear and with lifting gear;The crossbearer(4)It is equipped with sliding-rail groove(9), sliding-rail groove(9) It is inside equipped with for sliding trolley(7)The sliding rail of sliding motion(8), sliding trolley(7)With lifting gear and outer support device(3)'s Supporting beam(13)Contact is detached from.
8. arched tunnel driving according to claim 7 moves into covering device certainly without support repeatedly, it is characterised in that:The liter Falling unit uses hydraulic lifting, including is symmetrically set in development machine(1)The lifting cylinder of both sides(6), lifting cylinder(6)External driving Hydraulic motor(11), lifting cylinder(6)Cylinder body be fixed on development machine(1)On frame body, lifting cylinder(6)Piston rod and crossbearer (4)Connection.
9. arched tunnel driving according to claim 8 moves into covering device certainly without support repeatedly, it is characterised in that:The cross Frame(4)With sliding rail(8)Between be equipped with telescopic oil cylinder(10), telescopic oil cylinder(10)Cylinder body be fixed on crossbearer(4)On, sliding rail(8) With telescopic oil cylinder(10)Piston rod connection and can be with piston rod along sliding-rail groove(9)Forward, telescopic oil cylinder(10)By hydraulic motor (11)Driving.
CN201721861879.4U 2017-12-27 2017-12-27 Arched tunnel driving moves into covering device certainly without support repeatedly Active CN207847670U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965342A (en) * 2017-12-27 2018-04-27 中国煤炭科工集团太原研究院有限公司 Arched tunnel driving moves into covering device certainly without support repeatedly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965342A (en) * 2017-12-27 2018-04-27 中国煤炭科工集团太原研究院有限公司 Arched tunnel driving moves into covering device certainly without support repeatedly

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