CN107989607A - Rectangular shaped roadways driving moves into covering device certainly without support repeatedly - Google Patents
Rectangular shaped roadways driving moves into covering device certainly without support repeatedly Download PDFInfo
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- CN107989607A CN107989607A CN201711450333.4A CN201711450333A CN107989607A CN 107989607 A CN107989607 A CN 107989607A CN 201711450333 A CN201711450333 A CN 201711450333A CN 107989607 A CN107989607 A CN 107989607A
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- hoistable platform
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- 230000008093 supporting effect Effects 0.000 claims abstract description 71
- 230000001681 protective effect Effects 0.000 claims description 16
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention 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 present invention provides a kind of rectangular shaped roadways driving covering device is moved into without support repeatedly certainly, including development machine, support hoistable platform and some outer support devices, outer support device is supported using door shape matched with rectangle digging laneway, it is parallel to each other between outer support device, straddle on development machine to rectangle digging laneway formed support, support hoistable platform be arranged on development machine at the top of and can be freely lifted to outer support device upper contact, outer support device can be pushed ahead to development machine front end after being contacted with support hoistable platform with support hoistable platform along driving line of travel.The present invention creates reliable, flexible supporting condition for driving face safety and high efficiency, it can be achieved to support the nothing of top plate repeatedly, ensure the integrality of top plate, while to improving the mechanical mining technique of development end, improve driving speed and production efficiency is of great significance.
Description
Technical field
The invention 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 is without repeatedly
Support self-advancing Device.
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, 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
Meet head on as face the pressure of supporting, improve the supporting situation of working face, but also there is 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 colliery is quickly dug
Into the technical barrier of safety in production for many years, since top plate cannot obtain effective supporting in time after tunnelling, often cause
Top plate falls cash casualty accident, can not give full play to 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, and ring is fixed on top plate by anchor pole, preceding
Beam is visited in hanging ring, leans out rear supporting roof, its main problem：1. it is using half round timber and timber wedge that steel and the real back of the body of top plate brake is tight,
There is no setting load, there are great security risk；2. forestope is that point or line contact with top plate, it is impossible to which empty top zone is carried out comprehensively
Effective support, it is worse if running into roof cracking using effect；3. for operating process complexity, it is necessary to manually move, labor intensity is big,
Gib speed is slow, efficiency is low；4. bolting with wire mesh mode operator in lapping has to enter into empty top zone operation, exist greatly
Security risk.
（2）Vehicle-mounted temporary support device for development machine
Device is mainly made of left and right base, left and right rack, left and right rollover stand, left and right folding arm frame and upper frame beam, installed in driving
Machine front middle part.When development machine normally tunnels, which is contracted in cut gear reducer back, do not disturb development machine movement and
Cut operation function；Need to control the position of folding stand by operating the hydraulic control valve of supporting folding stand during supporting, make folding
Superimposed, which is stretched out, is supported in top plate, completes branch protective function.Its major defect：1. supporting area is small, it is impossible to the top of complete supporting exposure
Plate;2. operating personnel's still operation in the case where sky pushes up during bolting with wire mesh, there are great security risk;3. the device adapts to top plate
Property is poor.Roof and floor fluctuating is run into during driving, tunnel is lower, and airborne supporting cannot be put to good use open completely, not reach setting load, be deposited
In larger security risk.
（3）Multiple rows of hydraulic prop increases intensity I-steel capplce method of support
First then tapped again rapidly using hydraulic single prop by empty top zone firm supporting after machine pick, treat Chu Liwan
After falling cash living, float stone, rapidly with monomer column by I-steel and steel wire top to top straight portion, networking, protect top plate.Install
At least three people, which coordinate, during every hydraulic prop carries out gib, and labor strength is big, of high cost, and prop drawing is dangerous
Greatly, there are security risk, and personnel are influenced and equipment is passed through, supporting effect and safety guarantee are undesirable.
The content of the invention
The present invention provides a kind of rectangle lane to solve the above problem existing for existing underground coal mine gib
Road driving moves into covering device certainly without support repeatedly.The present invention adopts the following technical scheme that：
The present invention adopts the following technical scheme that：
A kind of rectangular shaped roadways driving moves into covering device, including development machine, support hoistable platform and some outer branch certainly without support repeatedly
Support arrangement, outer support device are supported using door shape matched with rectangle digging laneway, are parallel to each other, are straddled between outer support device
In on development machine to rectangle digging laneway formed support, support hoistable platform be arranged on development machine at the top of and can be freely lifted to it is outer
Support device upper contact, outer support device with support hoistable platform contact after can with support hoistable platform along tunnel line of travel to
Before be advanced into development machine front end.
The outer support device includes the door shape supporting rack that two framves are parallel to each other, and two frame supporting racks are connected by lateral connection beam
Connect, every frame supporting rack includes supporting beam, termination beam, column and support column, and supporting beam horizontal cross is set, both ends are respectively articulated with end
Head beam, two support columns are corresponded to be hinged with termination beam, hinged stanchion below support column；The termination beam, which is equipped with, promotes termination beam
Rotate the termination oil cylinder of withdrawal inwardly around the hinge shaft of itself and supporting beam, termination oil cylinder is by fluid motor-driven.
Some pallets for adapting to top plate fluctuations are hinged with the top of the supporting beam, pallet is platy structure.
Jointing clip and protective plate are equipped between the same heel post of the outer support device, is equipped with the inside of support column and supplies protective plate
The sliding slot moved up and down.
The termination beam, which is equipped with, prevents limited block that support column tilts laterally, i.e. support column can inwardly be withdrawn, to
When outside is unfolded, extreme position is vertical direction, and guarantee will not be stuck up outside interferes tunnel.
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 provided with sliding-rail groove
The slide of sliding trolley sliding motion, sliding trolley are contacted with the supporting beam of outer support device with lifting gear, departed 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 connected with crossbearer.
Telescopic oil cylinder is equipped between the crossbearer and slide, the cylinder body of telescopic oil cylinder is fixed on crossbearer, and slide is with stretching
The piston rod of oil cylinder is connected and can moved forward with piston rod along sliding-rail groove, and telescopic oil cylinder is by fluid motor-driven.
The present invention is arranged on machine body of boring machine, and forming one with development machine moves forward.In driving face, pick is straddled
Arrange support device on into machine, after development machine tunnels forward, the hoistable platform of machine body of boring machine rises, until sliding trolley with
Support means bottom portion contacts, and support device packs up column, and support device is dropped on the sliding trolley of hoistable platform, receiving end hair oil
Cylinder so that termination beam receives vertical with supporting beam；Drop hoistable platform to support device departs from top plate and can simultaneously be filled along the support of side arm
Inner space is put by the way that sliding trolley carries support device and moved forward along slide at this time, during to slide front end, stretches again at this time
Telescopic oil cylinder between supporting rack and slide, makes slide send support device to working face along sliding-rail groove forward movement and meets head on.Rise
Drop platform to support device and contact top plate, stretching termination oil cylinder makes it parallel with supporting beam, stretches the column of support cylinder and fills support
Put stretching top plate.Hoistable platform drops, and the telescopic oil cylinder between revenue and expenditure support and slide makes slide to initial position.
The present invention changes traditional support pattern, easily realizes that tunneling boring actively without roof supporting repeatedly, is conducive to ore deposit in time
The Safety Control of Roof of well.
Coal roadway tunneling is mainly by working face rear portion by the sliding trolley of hoistable platform without self-advancing Device is supported repeatedly
Support device is transported to working face and meets head on, and carries out immediate support to tunnel, avoids the support repeatedly to tunnel, realizes that nothing is propped up repeatedly
Shield, ensures the integrality of back.
Hoistable platform arranges that hoistable platform is internally provided with lifting cylinder with machine body of boring machine, being moved forward with development machine,
Fuel tank, which is shared, with development machine provides power for its lifting.
Hoistable platform is equipped with slide, and telescopic oil cylinder is arranged between slide and crossbearer, and sliding trolley send support device to cunning
Rail front end, then slide is moved forward along sliding-rail groove by the elastic of slide, support device is sent to working face and is met head on.
Supporting rack also can be used alone, at this time to the supporting related frequency met head on, suitable for coal roadway tunneling tunnel condition not
When good.Two frame supporting racks are combined into one to form support device.
The supporting rack both ends of support device are equipped with termination beam, control it flexible by termination oil cylinder, and termination beam can during stretching
Supporting roof, termination beam is vertical with supporting beam during withdrawal, can shorten the length of supporting rack and support device, ensure that it can dig
Into the appropriate space reach between machine and support device.
Hoistable platform, support device and development machine share fuel tank, and power source is provided for it, can accordingly reduce the power of equipment
Source, ensures the safe operation of underground, cost-effective.
Support column is equipped between column and termination beam, can ensure the stability of support device accordingly, while can be to coal wall
Wall caving plays protective action.
Arrange protective plate between the supporting beam of support device, between the beam of termination, can prevent the bastard coal of top plate drop hurt sb.'s feelings and
Opposite end hair oil cylinder plays a protective role；With jointing clip is equipped between heel post, protective plate is disposed with jointing clip, supports intercolumniation
Equipped with sliding slot, during column up-down, protective plate can lift at the same time along sliding slot with column, play the role of full protection to coal wall.
Termination beam is equipped with limited block, prevents support column deflection inwardly, position-limiting action is played to support column, is ensured at the same time
The inner space of development machine and support device.
Pallet, pallet and the spherical connection of supporting beam can be set in the supporting beam of supporting rack, is suitable for the fluctuations of top plate.It is vertical
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 present invention has following beneficial effect：Mainly by the sliding trolley of hoistable platform by the branch at working face rear portion
Support arrangement is transported to working face and meets head on, and carries out immediate support to tunnel, avoids the support repeatedly to tunnel, realizes that nothing is propped up repeatedly
Shield, ensures the integrality of back, is conducive to the Safety Control of Roof of colliery headwork, is created for comprehensive pick face safe
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 machinery
Change supporting work degree, greatly improve driving speed and work efficiency, reduce excavation cost and the labor intensity of operating personnel,
Ensure personnel safety.
The present invention creates reliable, flexible supporting condition, it can be achieved that to top plate for driving face safety and high efficiency
Without supporting repeatedly, ensure the integrality of top plate, while to improving the mechanical mining technique of development end, improve driving speed and life
Production efficiency is of great significance.
Brief description of the drawings
Fig. 1,2,3 are respectively general assembly front view, side view and the top view of the present invention；
Fig. 4,5,6 are respectively connection front view, side view and the top view of hoistable platform and development machine；
Fig. 7,8,9 are respectively front view, side view and the top 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 cylinders, 7.
Sliding trolley, 8. slides, 9. sliding-rail grooves, 10. telescopic oil cylinders, 11 hydraulic motors, 12. supporting racks, 13. supporting beams, 14. terminations
Beam, 15. axis pins, 16 termination oil cylinders, 17. columns, 18. support columns, 19. tie-beams, 20. protective plates, 21. jointing clips.
Embodiment
Rectangular shaped roadways driving of the present invention is mainly the sliding 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 trolley, is carried out immediate support to tunnel, is avoided to the anti-of tunnel
Multiple support, realizes the integrality for without supporting repeatedly, ensureing back.Be conducive to the Safety Control of Roof of colliery headwork,
Safe working environment is created for comprehensive pick face.Supporting program can be simplified, avoid the safety of operating personnel's operation under empty push up hidden
Suffer from.Improve working in driving face of coal mine mechanization supporting work degree, greatly improve driving speed and work efficiency, reduce excavation cost with
And the labor intensity of operating personnel, provide powerful guarantee for the safety of operating personnel.Coal roadway tunneling is filled without support repeatedly from shifting
Put and be mainly made of development machine, support hoistable platform and support device.Hoistable platform arrangement and machine body of boring machine are supported, with driving
Machine moves forward.Sliding trolley is straddled on the slide with hoistable platform, realizes sliding trolley from shifting by hydraulic motor.Slide and support
Telescopic oil cylinder is arranged between frame, makes slide support device is reached working face in sliding-rail groove reach by telescopic oil cylinder and meets head on.
Specifically, coal roadway tunneling mainly includes development machine 1, airborne support hoistable platform 2 without self-advancing Device is supported repeatedly
With support device 3.The support hoistable platform 2 include crossbearer 4, lifting gear 5, lifting cylinder 6, sliding trolley 7, slide 8,
Sliding-rail groove 9, telescopic oil cylinder 10, hydraulic motor 11.The support device 3 is formed including two frame supporting racks 12, every frame supporting rack
12 mainly by supporting beam 13, termination beam 14, axis pin 15, termination oil cylinder 16, column 17 and support column 18.Between two frame supporting racks 12
Connected by tie-beam 19, and be disposed with protective plate 20.With being equipped with jointing clip 21 and protective plate 20 between heel post 17.
The support hoistable platform 2 is mainly arranged on 1 fuselage of development machine machine, one is formed with development machine 1, by pick
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 slide 8 is disposed with sliding-rail groove 9.Crossbearer 4 with
Telescopic oil cylinder 10 is disposed between slide 8, can realize that along the elastic of sliding-rail groove 9, support is filled for slide 8 by telescopic oil cylinder 10
Put 3 and send to working face and meet head on.
The sliding trolley 7 is straddled on slide 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 termination beam by axis pin 15 and termination oil cylinder 16
14.Control it flexible by termination oil cylinder 16, during stretching termination beam 14 can supporting roof, termination beam 14 and supporting beam 13 during withdrawal
Vertically, the length of supporting rack 12 and support device 3 can be shortened, ensure 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 termination beam have protective plate 20, can prevent the bastard coal of top plate from dropping to hurt sb.'s feelings.
Support column 18 is equipped between the column 17 and termination 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 termination beam 14 of the support device 3 connects support column 18 by axis pin 15, and 18 arranged beneath of support column has vertical
Column 17.With jointing clip 21 and protective plate 20 is equipped between heel post 17, protective plate 20 can be in the sliding slot of the inner side of homonymy support column 18
Move up and down, full protection is served to lateral wall.Termination beam 14 is equipped with limited block, and position-limiting action is played to support column 18.
Pallet, pallet and the spherical connection of supporting beam can be set in the supporting beam of the supporting rack 12, is suitable for rising for top plate
Volt change.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 present invention can be achieved to support the nothing of back repeatedly, ensure the integrality of back.Be conducive to colliery pick
Into the Safety Control of Roof of work, safe working environment is created for comprehensive pick face.Its is compact-sized, and operation is flexible, Neng Gou great
It is big to improve driving speed and work efficiency.Its hoistable platform becomes one with fully-mechanized digging machine, simplifies supporting program, small by sliding
Car send support device from movement, realizes automated job, reduces the original round-trip gib time；Reduce that worker is original shoulders
The labour of monomer is transported, removed, realizes driving face mechanization gib, reduces labor strength.Realize driving at the same time
The tunneling boring supporting of the top plate of working face empty top zone, ensures that the operating personnel of driving face and development machine are in a safe condition.
Claims (8)
1. a kind of rectangular shaped roadways driving moves into covering device certainly without support repeatedly, it is characterised in that：Including development machine（1）, support rise
Platform drops（2）With some outer support devices（3）, outer support device（3）Supported using door shape matched with rectangle digging laneway, outside
Support device（3）Between be parallel to each other, straddle in development machine（1）On to rectangle digging laneway formed support, support hoistable platform
（2）Arranged on development machine（1）Top can simultaneously be freely lifted to outer support device（3）Upper contact, outer support device（3）With support
Hoistable platform（2）Can be with support hoistable platform after contact（2）Pushed ahead along driving line of travel to development machine（1）Front end.
2. rectangular shaped roadways 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 door shape supporting rack being parallel to each other 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）, termination beam（14）, column（17）And support column（18）, supporting beam（13）
Horizontal cross is set, both ends are respectively articulated with termination beam（14）, two support columns（18）Corresponding and termination beam（14）It is hinged, support column
（18）Lower section hinged stanchion（17）；The termination beam（14）It is equipped with and promotes termination beam（14）Around itself and supporting beam（13）Hinge shaft
The termination oil cylinder of withdrawal is rotated inwardly（16）, termination oil cylinder（16）By hydraulic motor（11）Driving.
3. rectangular shaped roadways driving according to claim 2 moves into covering device certainly without support repeatedly, it is characterised in that：The branch
Support beam（13）Top be hinged with some pallets for adapting to top plate fluctuations, pallet is platy structure.
4. rectangular shaped roadways driving according to claim 3 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, support column（18）Inner side is equipped with protective plate
The sliding slot of lower movement.
5. rectangular shaped roadways 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 support column（18）The limited block tilted laterally.
6. rectangular shaped roadways driving according to claim 5 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）
Inside it is provided with for sliding trolley（7）The slide of sliding motion（8）, sliding trolley（7）With lifting gear and outer support device（3）'s
Supporting beam（13）Contact, depart from.
7. rectangular shaped roadways driving according to claim 6 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.
8. rectangular shaped roadways driving according to claim 7 moves into covering device certainly without support repeatedly, it is characterised in that：The horizontal stroke
Frame（4）With slide（8）Between be equipped with telescopic oil cylinder（10）, telescopic oil cylinder（10）Cylinder body be fixed on crossbearer（4）On, slide（8）
With telescopic oil cylinder（10）Piston rod connection and can be with piston rod along sliding-rail groove（9）Reach, telescopic oil cylinder（10）By hydraulic motor
（11）Driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450333.4A CN107989607A (en) | 2017-12-27 | 2017-12-27 | Rectangular shaped roadways driving moves into covering device certainly without support repeatedly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450333.4A CN107989607A (en) | 2017-12-27 | 2017-12-27 | Rectangular shaped roadways driving moves into covering device certainly without support repeatedly |
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| Publication Number | Publication Date |
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| CN107989607A true CN107989607A (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711450333.4A Pending CN107989607A (en) | 2017-12-27 | 2017-12-27 | Rectangular shaped roadways driving moves into covering device certainly without support repeatedly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653744A (en) * | 2019-01-14 | 2019-04-19 | 黄祖华 | A kind of walking rock digger |
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