CN106121704B - A kind of mining excavation working face walking prop, traveling method and development machine - Google Patents
A kind of mining excavation working face walking prop, traveling method and development machine Download PDFInfo
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- CN106121704B CN106121704B CN201610736945.9A CN201610736945A CN106121704B CN 106121704 B CN106121704 B CN 106121704B CN 201610736945 A CN201610736945 A CN 201610736945A CN 106121704 B CN106121704 B CN 106121704B
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- support column
- back timber
- advancing jack
- base
- rear support
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 29
- 238000005065 mining Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 238000005183 dynamical system Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000001802 infusion Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 230000005641 tunneling Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
- E21D23/22—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms incorporated in mine caps
Abstract
The invention discloses a kind of mining excavation working face walking prop and traveling method, including back timber, upper advancing jack, the friction auxiliary structure that relative can be slid back and forth, single wobbling pole, rear support column, front support column, shovel flitch, base and lower advancing jack；Back and front supporting column is scalable, and when rear support column is in holding state, front support column is in quick condition, upper advancing jack promotes back timber to promote certain distance forward by flitch is shoveled relative to top plate reach certain distance, lower advancing jack；When currently support post is in holding state, rear support column is in quick condition, base is pulled along certain distance by lower advancing jack；The present invention walking prop without unload walk, top plate is not caused to support repeatedly, ensure top plate not absciss layer, be not caving；The invention also discloses a kind of development machine containing above-mentioned walking prop, has the advantages of efficiency of construction is high, labor intensity is low, operator is safer, suitable for popularization and application.
Description
Technical field
The present invention relates to mining excavation device fabrication and application field, is related to the supporting machine that mining excavation back controls
Tool, in more particularly to a kind of mine working tunneling process, the mining excavation working face walking branch of roof stability can be kept
Frame, traveling method and development machine.
Background technology
At present in China mine (colliery, metallic ore, Gypsum Mine, sylvite ore etc.) underworkings driving, back is both needed to
Permanently anchored with anchor pole, take traditional anchor rod anchored mode, operator must be in the driving face of non-support
Front end, the mode construction operation such as bolthole, by hand conveying anchor pole and anchoring resin, manual fastening anchor rod nut, top are beaten with electric drill
Plate falls cash phenomenon, coal (rock) wall flaps side phenomenon happens occasionally, inefficient with potential safety hazard and to deposit.
On development machine install can be achieved anchor rod anchored overall process do mechanization operation jumbolter, technically very into
It is ripe, but about 4 meters or so of cutting arm needs front, rear, left and right to swing cut rock mass, therefore jumbolter in the development machine course of work
It can be only installed on the position behind cutting arm of tunneling machine, thus need the top plate above cutting arm of tunneling machine to implement lossless
Bad property gib, carried out with to ensure jumbolter to top plate it is permanent it is anchor rod anchored before, the complete stability of back.
At present, the walking manner forward of temporary shoring bracket used in roadway head, unloading is taken to move forward mostly
Mode, a mobile step office is about 0.5~1.0 meter, mobile 4 meters or so distance, and repeatedly support of the support to top plate there are about 4~
8 times, easily cause back to crush, influence tunnel into lane quality.
Therefore, develop a kind of without unloading walking, top plate do not caused to support repeatedly, ensure top plate not absciss layer, be not caving
Walking prop, be where the anchor rod anchored overall process of Roadway Roof realizes the key technology of do mechanization operation.
The content of the invention
The invention solves first technical problem be to provide a kind of without unloading walking, top plate is not caused to prop up repeatedly
Support, ensure top plate not absciss layer, the mining excavation working face walking prop not being caving.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of mining excavation working face walking prop, including back timber, upper advancing jack, can relative slide back and forth
Rub auxiliary structure, single wobbling pole, rear support column, front support column, shovel flitch, base and lower advancing jack；The back timber leads to
Cross friction auxiliary structure to be connected with single wobbling pole one end, the other end and the base of the single wobbling pole are hinged, the rear support column connection
Between base and single wobbling pole；The front support column is connected between shovel flitch and back timber；The back timber passes through upper passage thousand
Jin top is acted on single wobbling pole；The shovel flitch is connected by lower advancing jack with base；The back and front supporting column
Flexible, when the rear support column is in holding state, front support column is in quick condition, upper advancing jack can be single
Swing rod is that fulcrum promotes back timber can be using base as branch relative to mining excavation back reach certain distance, lower advancing jack
Shovel flitch is promoted forward certain distance by point；When currently support post is in holding state, rear support column is in quick condition,
Base can be pulled along certain distance by lower advancing jack.
Further, the friction auxiliary structure includes sliding block and guide pillar；The guide pillar is in be vertically fixed on back timber, described
It is respectively pilot hole and hinge hole to have mutually perpendicular two holes on sliding block, and the pilot hole of sliding block is enclosed on the cylinder of guide pillar and can
Slid back and forth on guide pillar；The hinge hole of sliding block is hinged with single wobbling pole.
Further, the guide pillar is by being welded on back timber and relative to back timber there is the otic placode of longitudinal hole to be fixed on top
Liang Shang.
Further, the back timber is two, in addition to support bar, and the support bar is simultaneously relative by being welded on back timber
Two back timbers are fixed as one by the otic placode for having transverse holes in back timber, and oscillating bearing is provided with the otic placode.
Further, the mobile holder specifically includes：Two back timbers, four upper advancing jacks, two sliding blocks, two
Guide pillar, two support bars, two single wobbling poles, two rear support columns, four front support columns, shovel flitch, a base
And two lower advancing jacks；Two back timbers are fixed as one by described two support bars, each support bar respectively with two before
Support post is hinged, and it is overall that two back timbers, two guide pillars, two support bars are collectively forming first；Described two sliding blocks, two lists
It is overall that swing rod, a base, two rear support columns are collectively forming second；One shovel flitch is total to four front support columns
It is overall with forming the 3rd；Described first is overall that can pass through four upper advancing jacks relative movements between the second entirety；It is described
Second is overall that can pass through two lower advancing jacks relative movements between the 3rd entirety.
Further, in addition to accumulator, the rear telescopic column use telescopic oil cylinder structure, and the accumulator is with stretching
The plunger shaft of oil cylinder communicates；When running into raised top plate during back timber passage, the accumulator energy-absorbing, make rear support
Column drainage；When running into recessed top plate during back timber passage, accumulator can release energy, make rear support column fluid infusion.
Further, the walking prop uses hydraulic pressure driving source.
The invention solves second technical problem be to provide a kind of above-mentioned mining excavation working face walking prop
Traveling method, comprise the following steps：Step 1, constant pressure passage back timber process：Rear support column is in holding state, front support
Column is in quick condition, and the state is set as into original state；Now, advancing jack promotes back timber in operation, makes back timber
Overcome and move forward certain distance with the frictional resistance of top plate；Step 2, shovel flitch reach process is promoted：At back and front supporting column
In above-mentioned same condition, operate lower advancing jack and promote shovel flitch to move forward same distance；Step 3, pedestal forward lead is pulled
Process：Back and front supporting column is supported to be switched with floating, and front support column is in holding state, rear support column is in
Quick condition, now, operate lower advancing jack and pull base to move forward same distance；Step 4, restPose：Before,
Rear support column is supported to be switched again with what is floated, rear support column is in holding state, and front support column, which is in, to float
State.
The invention solves the 3rd technical problem be to provide that an efficiency of construction is high and development machine without potential safety hazard, its
Contain above-mentioned mining excavation working face walking prop.
Further, cutting units and shipment portion are installed on the shovel flitch, dynamical system and anchor pole are installed on the base
Anchor cable support apparatus.
By using above-mentioned technical proposal, the present invention at least has advantages below：
(1) walking prop of the present invention, three entirety relatively moved are driven using by upper and lower advancing jack,
Without unloading reach when walking forward, top plate is not caused to support repeatedly, 4 meters or so the distances above tunnelling machine cutting arm
Top plate realize no damageability supporting, ensure that the integrality roadway quality in tunnel.
(2) walking prop of the invention, permanent anchor rod anchored operation is made, by present manually in the face of non-support
Semi-mechanization of meeting head on operation (electric drill beats bolthole, anchor pole and resin are manually conveyed into hole, manually fastens anchor rod nut), is changed to
Manually safety support from face meet head on 4 meters or so position Fully-mechanized operation (using jumbolter beat bolthole, by
Jumbolter conveying anchor pole, resin, fastening anchor rod nut), efficiency of construction is improved, and labor intensity is reduced.
(3) walking prop of the invention, the position of about 4 meters or so distances can be set to unmanned operation under the back timber of support
Area, each procedure of tunnelling need not be manually in this operations, the danger such as leakage cash that face is met head on occurred, wall caving
Factor makes operator safer all without operating personnel is injured.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, below
With reference to accompanying drawing, the present invention is described in further detail with embodiment.
Fig. 1 is mining excavation working face constant pressure travelling hydraulic support front view of the embodiment of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is that mining excavation working face constant pressure travelling hydraulic support walking states of embodiment of the present invention schematic diagram is (permanent
Pressure passage back timber after-poppet state)；
Fig. 4 is mining excavation working face constant pressure travelling hydraulic support walking states of embodiment of the present invention schematic diagram (shovel
Flitch passage after-poppet state)；
Fig. 5 is that mining excavation working face constant pressure travelling hydraulic support walking states of embodiment of the present invention schematic diagram (is drawn
Dynamic pedestal forward lead after-poppet state)；
In figure：1- back timbers, the upper advancing jacks of 2-, 3- sliding blocks, 4- guide pillars, 5- support bars, 6- single wobbling poles, 7- rear supports are stood
Post, 8- front support columns, 9- shovel flitch, 10- bases, advancing jack under 11-, 12- accumulators.
Embodiment
As shown in Figure 1, 2, mining excavation working face walking prop of the invention, including back timber 1, upper advancing jack
2nd, the friction auxiliary structure that relative can slide back and forth, single wobbling pole 6, rear support column 7, front support column 8, shovel flitch 9, base 10 and
Lower advancing jack 11.
Above-mentioned back timber 1 is connected by the friction auxiliary structure that relative can be slid back and forth with the one end of single wobbling pole 6, single wobbling pole 6 it is another
One end is be hinged with base 10, and rear support column 7 is connected between base 10 and single wobbling pole 6；Front support column 8 is connected to shovel flitch
Between 9 and back timber 1；Back timber 1 is acted on single wobbling pole 6 by upper advancing jack 2；Shovel flitch 9 passes through lower advancing jack 11
It is connected with base 10；Back and front supporting column 8,7 is scalable, when rear support column 7 is in holding state, at front support column 8
When quick condition, upper advancing jack 2 can be fulcrum with single wobbling pole 6, be pushed away by the friction auxiliary structure that relative can be slid back and forth
Dynamic back timber 1 moves forward certain distance relative to mining excavation back, when back and front supporting column 8,7 is in above-mentioned same condition,
Lower advancing jack 11 can be that fulcrum promotes forward certain distance by flitch 9 is shoveled with base 10；Current support post 8 is in support
When state, rear support column 7 are in quick condition, base 10 can be pulled along certain distance by lower advancing jack 11.
Above-mentioned walking prop, it is mainly used in the gib of back above cutting arm of tunneling machine, using by upper and lower
Advancing jack driving carries out the relative movement of each main part, without unloading reach when walking forward, top plate is not caused anti-
Multiple support, it ensure that before the jumbolter at cutting arm of tunneling machine rear carries out permanent anchorage supporting to top plate, to tunnel
The top plate of 4 meters or so distances realizes no damageability supporting above cutting arm of tunneling machine, ensure that the integrality in tunnel, improves
The anchor rod anchored mechanized operation level of mining excavation back.
The above-mentioned friction auxiliary structure that relative can be slid back and forth, it is preferred to use the structure that sliding block 3 and guide pillar 4 coordinate；Guide pillar 4 is in
It is vertically fixed on back timber 1, it is respectively pilot hole and hinge hole there are mutually perpendicular two holes on sliding block 3, the pilot hole of sliding block 3
It is enclosed on the cylinder of guide pillar 4 and can be slid back and forth on guide pillar 4；The hinge hole of sliding block 3 is be hinged with single wobbling pole 6.Sliding block 3 and guide pillar
4 inside and outside matching surface machining accuracy is very high, in the presence of lubricating grease, coefficient of friction that sliding block 3 slides on the cylinder of guide pillar 4
Very low, therefore, upper advancing jack 2 need to only overcome the frictional resistance of back timber 1 and top plate, sliding block 3 and guide pillar 4 when promoting back timber 1
Frictional resistance proportion it is minimum negligible.
Preferably, above-mentioned back timber 1 is two, in addition to support bar 5, and support bar 5 is pushed up two by the otic placode on back timber 1
Beam 1 is fixed as one, and oscillating bearing is provided with otic placode.
Preferably, walking prop is also equipped with the accumulator 12 of big storage energy, and rear telescopic column 7 uses telescopic oil cylinder knot
Structure, accumulator 12 communicate with the plunger shaft of telescopic oil cylinder；When running into raised top plate during the passage of back timber 1, accumulator 12 can
Energy is absorbed, makes the drainage of rear support column 7；When running into recessed top plate during the passage of back timber 1, accumulator 12 can release energy
Amount, makes the fluid infusion of rear support column 7, passes through above-mentioned setting, it is possible to achieve constant pressure is walked.
Preferably, above-mentioned walking prop uses hydraulic pressure driving source, such as using hydraulic jack, hydraulic pressure support column.
Specifically, above-mentioned mining excavation working face walking prop, wherein each part are preferably as follows quantity：Back timber 1,
Sliding block 3, guide pillar 4, support bar 5, single wobbling pole 6, rear support column 7, lower advancing jack 11, accumulator 12 are respectively each two pieces,
Upper advancing jack 2 and front support column 8 are respectively each four, and shovel flitch 9, base 10 are respectively each one.
Two guide pillars 4 are respectively in longitudinal direction, and guide pillar 4 is by being welded on back timber 1 and having relative to back timber 1 ear of longitudinal hole
Plate coordinates bearing pin to be fixed on back timber 1, and the pilot hole of two sliding blocks 3 is respectively fitted on the cylinder of guide pillar 4.
Two support bars 5 are further through being welded on back timber 1 and having the otic placode of transverse holes relative to back timber 1, by two tops
Beam 1 is fixed as one, and each support bar 5 is be hinged with two front support columns 8 respectively, and joint is provided with the otic placode on back timber 1
Bearing, two back timbers 1 is being run into top plate not usually, increase the free degree, strengthen it and connect top performance.
The hinge hole of two sliding blocks 3 is be hinged with two single wobbling poles 6 respectively, and the other end and the base 10 of two single wobbling poles 6 are cut with scissors
Connect, two rear support columns 7 are supported between base 10 and single wobbling pole 6.
Two back timbers 1, two guide pillars 4, two support bars 5 form the first entirety for critical piece with back timber 1；Two cunnings
10, the two rear support columns 7 of base of single wobbling pole 6, one of block 3, two are collectively forming with base 10 for critical piece
Two is overall；One shovel 9, four front support column 8 of flitch is collectively forming to shovel threeth entirety of the flitch 9 for critical piece；It is above-mentioned
First entirety and the second entirety are mutually slided in the case where resistance is larger, are by installed in 4 between single wobbling pole 6 and back timber 1
(single wobbling pole 6 coordinates two upper advancing jacks 2) that pushes or pull on to realize of individual upper advancing jack 2；Above-mentioned
Two entirety and the 3rd overall relative movement, are pushing away by 2 lower advancing jacks 11 between base 10 and shovel flitch 9
Move or pull to realize.
The walking process of above-mentioned walking prop, comprises the following steps：
Step 1, the first integral forward lead process (reach of back timber constant pressure) is as shown in Figure 3：Rear support column 7 is in support shape
State, front support column 8 is in quick condition, and the state is set as into original state；Now, advancing jack 2 pushes away in operation
Dynamic first is overall, overcomes the back timber 1 in the first entirety and is moved forward with the frictional resistance of top plate, until sliding block 3 is on guide pillar 4
Slide spacing；
Step 2, the 3rd integral forward lead process (promoting the reach of shovel flitch) is as shown in Figure 4：Back and front supporting column 8,7 is in
Above-mentioned same condition, operate lower advancing jack 11 and promote shovel flitch 9 to move forward；
Step 3, the second integral forward lead process (pulling pedestal forward lead) is as shown in Figure 5：Back and front supporting column 8,7 is propped up
Support switches with floating, and front support column 8 is in holding state, rear support column 7 is in quick condition, now, is pushed away under operation
Moving jack 11 pulls base 10 to move forward；
Step 4, restPose：Back and front supporting column 8,7 is supported to be switched again with what is floated, founds rear support
Post 7 is in holding state, and front support column 8 is in quick condition.
The mobile distance of steps 1 and 2,3 actions is equal, it is illustrated that is that displacement is 500-50=450mm.
Above-mentioned walking prop, cutting units and the shipment portion of development machine can be installed on shovel flitch 9, can be pacified on base 10
The other parts of dynamical system and bolting and rope support device with tunnelling into lane are filled, complete shovel flitch 9 and base 10
Above-mentioned installation after, a kind of novel device of such as multifunctional combined development machine will be formed.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (10)
- A kind of 1. mining excavation working face walking prop, it is characterised in that including back timber, upper advancing jack, can be relative Friction auxiliary structure, single wobbling pole, rear support column, front support column, shovel flitch, base and the lower advancing jack slid back and forth；The back timber is connected by the auxiliary structure that rubs with single wobbling pole one end, and the other end and the base of the single wobbling pole are hinged, described Rear support column is connected between base and single wobbling pole；The front support column is connected between shovel flitch and back timber；The top Beam is acted on single wobbling pole by upper advancing jack；The shovel flitch is connected by lower advancing jack with base；The back and front supporting column is scalable, when the rear support column is in holding state, front support column is in and floated During state, upper advancing jack can promote back timber relative to mining excavation back one spacing of reach by fulcrum of single wobbling pole From lower advancing jack can promote certain distance forward using base as fulcrum by flitch is shoveled；Current support post is in support shape When state, rear support column are in quick condition, base can be pulled along certain distance by lower advancing jack.
- 2. mining excavation working face walking prop according to claim 1, it is characterised in that the friction auxiliary structure Including sliding block and guide pillar；The guide pillar has mutually perpendicular two holes to be respectively pilot hole and be hinged in being vertically fixed on back timber on the sliding block Hole, the pilot hole of sliding block are enclosed on the cylinder of guide pillar and can slid back and forth on guide pillar；The hinge hole of sliding block is hinged with single wobbling pole.
- 3. mining excavation working face walking prop according to claim 2, it is characterised in that the guide pillar passes through weldering The otic placode for being connected on back timber and having longitudinal hole relative to back timber is fixed on back timber.
- 4. mining excavation working face walking prop according to claim 1, it is characterised in that the back timber is two It is individual, in addition to support bar, the support bar is by being welded on back timber and having the otic placode of transverse holes by two relative to back timber Back timber is fixed as one, and oscillating bearing is provided with the otic placode.
- 5. mining excavation working face walking prop according to claim 2, it is characterised in that the mobile holder tool Body includes：Two back timbers, four upper advancing jacks, two sliding blocks, two guide pillars, two support bars, two single wobbling poles, two Rear support column, four front support columns, a shovel flitch, a base and two lower advancing jacks；Two back timbers are fixed as one by described two support bars, and each support bar is hinged with two front support columns respectively, and two It is overall that individual back timber, two guide pillars, two support bars are collectively forming first；It is overall that described two sliding blocks, two single wobbling poles, a base, two rear support columns are collectively forming second；It is overall that one shovel flitch and four front support columns are collectively forming the 3rd；Described first is overall that can pass through four upper advancing jacks relative movements between the second entirety；Described second is overall that can pass through two lower advancing jacks relative movements between the 3rd entirety.
- 6. the mining excavation working face walking prop according to claim any one of 1-5, it is characterised in that also include Accumulator, the rear support column use telescopic oil cylinder structure, and the accumulator communicates with the plunger shaft of telescopic oil cylinder；When running into raised top plate during back timber passage, the accumulator energy-absorbing, make rear support column drainage；Work as top When running into recessed top plate during beam passage, accumulator can release energy, make rear support column fluid infusion.
- 7. the mining excavation working face walking prop according to claim any one of 1-5, it is characterised in that the row Walk formula support and use hydraulic pressure driving source.
- 8. the traveling method of the mining excavation working face walking prop according to claim any one of 1-7, its feature It is, comprises the following steps：Step 1, constant pressure passage back timber process：Rear support column is in holding state, and front support column is in quick condition, by this State is set as original state；Now, in operation advancing jack promote back timber, make back timber overcome with the frictional resistance of top plate to Before move a certain distance；Step 2, shovel flitch reach process is promoted：Back and front supporting column is in above-mentioned same condition, operates lower advancing jack and pushes away Dynamic shovel flitch moves forward same distance；Step 3, pedestal forward lead process is pulled：Back and front supporting column is supported to be switched with floating, and front support column is in branch Support state, rear support column are in quick condition, now, operate lower advancing jack and pull base to move forward same distance；Step 4, restPose：Back and front supporting column is supported to be switched again with what is floated, rear support column is in branch Support state, front support column are in quick condition.
- 9. a kind of development machine, it is characterised in that contain the mining excavation working face walking described in claim any one of 1-7 Support.
- 10. development machine according to claim 9, it is characterised in that install cutting units and shipment portion, institute on the shovel flitch State and dynamical system and bolting and rope support device are installed on base.
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| CN201610736945.9A CN106121704B (en) | 2016-08-26 | 2016-08-26 | A kind of mining excavation working face walking prop, traveling method and development machine |
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| CN201610736945.9A CN106121704B (en) | 2016-08-26 | 2016-08-26 | A kind of mining excavation working face walking prop, traveling method and development machine |
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| CN111960057A (en) * | 2020-08-04 | 2020-11-20 | 霍州煤电集团吕梁山煤电有限公司方山店坪煤矿 | Sliding shoe type self-moving tail of fully mechanized excavation face |
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| CN2092601U (en) * | 1991-06-01 | 1992-01-08 | 北京矿务局机械设计研究所 | Hydraulic props with the feature of step-take sustaining and shielding |
| CN2154912Y (en) * | 1993-06-10 | 1994-02-02 | 沈阳矿务局 | Sectional mobile prop |
| CN201367911Y (en) * | 2009-02-25 | 2009-12-23 | 三一重型装备有限公司 | Crawler walking type hydraulic support |
| CN102337915A (en) * | 2011-10-10 | 2012-02-01 | 高九华 | Combined hydraulic bracket with coal loading, coal placing and self-moving functions |
| CN202441408U (en) * | 2012-01-18 | 2012-09-19 | 张建新 | Rapid installing device of suspended bracket |
| CN103742176A (en) * | 2014-01-21 | 2014-04-23 | 蒲长晏 | Excavating and anchor-supporting all-in-one unit |
| CN104074536A (en) * | 2014-07-11 | 2014-10-01 | 吕国定 | Hydraulic support frame with moving function under pressure |
| CN204572037U (en) * | 2015-01-27 | 2015-08-19 | 安徽理工大学 | A kind of hydraulic support device |
| CN205977257U (en) * | 2016-08-26 | 2017-02-22 | 蒲长晏 | Mining excavation is walking prop and entry driving machine for working face |
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| CN106121704A (en) | 2016-11-16 |
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