CN105735983B - Saw-blade type joint-cutting device and roof rock joint-cutting method - Google Patents
Saw-blade type joint-cutting device and roof rock joint-cutting method Download PDFInfo
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- CN105735983B CN105735983B CN201610172913.0A CN201610172913A CN105735983B CN 105735983 B CN105735983 B CN 105735983B CN 201610172913 A CN201610172913 A CN 201610172913A CN 105735983 B CN105735983 B CN 105735983B
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- cutting
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- roof rock
- saw blade
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- 238000005520 cutting process Methods 0.000 title claims abstract description 85
- 241000763859 Dyckia brevifolia Species 0.000 title claims abstract description 73
- 239000011435 rock Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005553 drilling Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000007921 spray Substances 0.000 claims abstract description 25
- 239000000428 dust Substances 0.000 claims abstract description 24
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 238000012407 engineering method Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 230000035772 mutation Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000005422 blasting Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/16—Machines slitting solely by one or more rotating saws, cutting discs, or wheels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/16—Machines slitting solely by one or more rotating saws, cutting discs, or wheels
- E21C25/18—Saws; Discs; Wheels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
-
- 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
- E21C35/08—Guiding the machine
-
- 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
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/23—Distribution of spraying-fluids in rotating cutter-heads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of saw-blade type joint-cutting devices and roof rock joint-cutting method, saw-blade type joint-cutting device, for cutting roof rock, drilling is drilled on the roof rock in advance, described device includes saw blade, intelligent positioning device, telescoping shoring column, spraying mechanism and walking mechanism, described telescoping shoring column one end is fixedly installed in the walking mechanism, the other end installs the saw blade, the intelligent positioning device is installed on the saw blade front end, match with the drilling, the spraying mechanism is sprayed water to the saw blade operative orientation.Telescoping shoring column supports saw blade in the present invention, it is convenient that roof rock is cut, lancing location can be determined using intelligent positioning device, guarantee joint-cutting accuracy, by spraying mechanism to the joint-cutting operation water spray dust carried out in roof rock, the operability of joint-cutting is improved.
Description
Technical field
The present invention relates to roof rock joint-cutting methods, especially with saw-blade type joint-cutting device used in roof rock joint-cutting
Structure is related.
Background technique
Currently, the method for carrying out joint-cutting according to direction initialization for rockmass is varied, such as waterpower joint-cutting, explosion
Joint-cutting (directional drilling joint-cutting), intensively drill joint-cutting, grooving machine joint-cutting etc..Wherein grooving machine joint-cutting mainly passes through high speed rotation
Saw blade the rigid structures object such as rock, concrete is cut.This lancing techniques continue to use last 100 years in every field,
Joint-cutting efficiency is higher.
But this lancing techniques are there is also being difficult to the shortcomings that overcoming, including joint-cutting depth as shallow, equipment are heavy, and at present
The roof rock in tunnel or tunnel can not be cut, in addition joint-cutting dust is big when using this kind of lancing techniques.
Summary of the invention
Aiming at the problems existing in the prior art, it is an object of the present invention to provide a kind of structures simply, control is reliable accurately,
The accurate saw-blade type joint-cutting device of feeding position.
To achieve the above object, technical scheme is as follows:
A kind of saw-blade type joint-cutting device is drilled with drilling for cutting roof rock in advance on the roof rock, described
Device includes saw blade, intelligent positioning device, telescoping shoring column, spraying mechanism, power device and walking mechanism, the scalable branch
Frame one end is fixedly installed in the walking mechanism, and the other end installs the saw blade, and the intelligent positioning device is installed on the saw
Piece front end, matches with the drilling, and the spraying mechanism is sprayed water to the saw blade operative orientation；The power device passes through transmission
Mechanism drives the saw blade operating.
In an optional embodiment, the walking mechanism is motor vehicles, is provided with console on the motor vehicles,
The console carries out position control to the telescoping shoring column.
In an optional embodiment, the telescoping shoring column includes more piece armed lever, passes through connection between two armed levers
Mouth is connected, and more piece armed lever collectively constitutes foldable structure.
In an optional embodiment, the spraying mechanism includes water tank, water pipe and spray head, and the water tank is set to described
In walking mechanism, the water pipe is connected to the water tank and spray head, the spray head are arranged close to the saw blade, and the spray head is to described
Drill two sides water spray.
In an optional embodiment, the spraying mechanism further includes dust concentration probe, described to detect dust concentration
Dust concentration is popped one's head in be arranged close to the saw blade.
In an optional embodiment, the armed lever be hollow structure, the water pipe be set to the armed lever it is described in
In hollow structure.
In an optional embodiment, the intelligent positioning device is cylindrical structure, and front end has tip, and length is
50-80 millimeters.
To achieve the above object, the present invention also provides the following technical solutions:
A kind of roof rock joint-cutting method, comprising the following steps:
Multiple drillings are drilled with according to joint-cutting trend on the roof rock, and guarantee that hole wall is smooth；
Using saw-blade type joint-cutting device as described above, first the intelligent positioning device is protruded into the drilling, then
Under intelligent positioner guiding, the roof rock is cut by the saw blade, dust is dense in cutting process
Water spray dust is carried out when spending high.
In an optional embodiment, every hundred meters of hole deviation of the drilling are less than 1.5 degree.
In an optional embodiment, the spacing of wells is determined according to the intensity of the roof rock, in the top plate
The higher region of Surrounding Rock Strength, using intensive drilling, in the lower region of roof rock intensity, using loose drilling.
The beneficial effects of the present invention are, compared with prior art, the present invention telescoping shoring column supports saw blade in the present invention,
It is convenient that roof rock is cut, lancing location can be determined using intelligent positioning device, guaranteed joint-cutting accuracy, passed through spray
Mechanism is drenched to the joint-cutting operation water spray dust carried out in roof rock, improves the operability of joint-cutting, therefore the present invention can answer
The joint-cutting operation of the roof rock in various tunnels and tunnel is used, it is horizontal to improve joint-cutting.Relative to existing blasting type crack engineering method,
Accurate joint-cutting operation is carried out using the saw-blade type joint-cutting device of the present embodiment, it is more acurrate that joint-cutting forms size, and and is not present
Blasting type mutation, reduces the mutation of surrounding rock body mechanical stress, is conducive to mining area operation safety.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings:
Figure 1A is the schematic perspective view of roof rock drilling；
Figure 1B is the planar structure schematic diagram of roof rock drilling；
Fig. 1 C is the schematic cross-sectional view of roof rock drilling；
Fig. 2 is the structural schematic diagram of saw-blade type joint-cutting device of the invention；
Fig. 3 is the structural schematic diagram of saw blade in saw-blade type joint-cutting device of the invention；
Fig. 4 is an operating status schematic diagram of saw-blade type joint-cutting device of the invention.
Specific embodiment
The exemplary embodiments for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that this
Invention can have various variations in different embodiments, neither depart from the scope of the present invention, and it is therein explanation and
Attached drawing inherently is illustrated as being used, rather than to limit the present invention.
The structure of one embodiment of saw-blade type joint-cutting device of the invention is as shown in Figures 2 and 3, encloses for cutting top plate
Rock.For the structure of roof rock as shown in Figure 1A, 1B and 1C, model is cut in the drilling 11 being drilled in advance including country rock 1 and thereon
It encloses for region 12 as shown in Figure 1 C.
Present invention can apply to the cutting fields of the rock mass such as tunnel, side slope, tunnel, are related to water conservancy, traffic, mine, state
The application fields such as anti-and work China Democratic National Construction Association, are particularly adapted to joint-cutting precision, speed and higher 110 engineering method of security requirement and N00
Engineering method.Wherein, 110 engineering method of broadwall is a kind of New Coal Mine recovery method, its main feature is that a working face only corresponds to one
Tunnel, nor need reserved coal pillar；Broadwall N00 engineering method is a kind of New Coal Mine recovery method, its main feature is that not having to
Upper crossheading and lower crossheading are excavated in working face mining, also do not need reserved coal pillar, and can guarantee the ventilation in entire panel.
In the present embodiment, as shown in Figures 2 and 3, and please also refer to shown in Fig. 4, saw-blade type joint-cutting device includes saw blade
2, intelligent positioning device 4, telescoping shoring column 5, spraying mechanism 7 and walking mechanism 3.Wherein, saw blade 2 be used for roof rock 1 into
Row cutting；Intelligent positioning device 4 carries out cutting operation for orienting and guiding saw blade 2；Telescoping shoring column 5 supports saw blade, and can
The position of saw blade 2 is adjusted by itself adjustment length；Spraying mechanism 7 is used to carry out water spray dust to cutting operation, improves and makees
Industry environment；Walking mechanism 3 is used to support above-mentioned component and is easily moved.
In the present embodiment, 5 one end of telescoping shoring column is fixedly installed in walking mechanism 3, and the other end installs saw blade 2, and intelligence is fixed
It is installed on 2 front end of saw blade to device 4, is matched with drilling 11, spraying mechanism 7 is sprayed water to 2 operative orientation of saw blade.Particularly, originally
Telescoping shoring column 5 in embodiment includes more piece armed lever 51, is connected between two armed levers 51 by connector 9, more piece armed lever 51 is total
With composition foldable structure, saw blade 2 is installed in shaft 8, and telescoping shoring column 5 is realized by the adjustment of folding position to saw blade 2
The adjustment set.In addition, armed lever 51 is set as hollow structure, the water pipe 71 of spray structure 7 is set in the hollow structure of armed lever 51.
In the present embodiment, walking mechanism 3 is motor vehicles, is provided with console 6 on motor vehicles 3, console 6 is to telescoping shoring column 5
Carry out position control.
In the present embodiment, the power of saw blade 2 is from the electrodeless motor 21 of high speed, by high-test chain, by power transmission
To saw blade 2.2 main shaft of saw blade can be fixed on telescoping shoring column 5 by bearing, and 2 main shaft of saw blade can connect a sprocket wheel, in order to by chain
Item driving.Due to using telescoping shoring column 5, chain must be packaged in armed lever 51, and the chain in each armed lever 51 is logical
Connection shaft 8 is crossed to deliver in relays.Central supported guide wheel can be set at middle part in each telescoping shoring column 5, and can connected in corner
The place of connecing setting inner or outer side guide wheel carrys out guide chain.In another embodiment, between the motor 21 and saw blade 2 of walking mechanism
It can also be driven using high-power spiral spring driving snake, output end can be carried out using tumbler gear or universal joint
Commutation.In another embodiment, high-power air motor or hydraulic motor, pneumatic horse can also be set in the position close to saw blade 2
It reaches or the gas source pipe of hydraulic motor or hydraulic tube can be arranged in telescoping shoring column 5, naturally it is also possible to outside access, air motor
Or hydraulic motor can be coupled by one section of transmission shaft with 2 main shaft of saw blade, also can use the biography that directly rubs with 2 lower end surface of saw blade
It is dynamic.Direct-axis is preferably adapted to the big function air motor or hydraulic motor of arrangement with the outer dimension of telescoping shoring column 5, and
Higher revolving speed and torque can be provided.Also it can be reduced the great number of issues of transmission link.
In the present embodiment, spraying mechanism 7 includes water tank (not shown), water pipe 71 and spray head 72, and water tank is set to row
It walks in mechanism 3,71 joining water box of water pipe and spray head 72, spray head 72 is arranged close to saw blade 2, and spray head 72 is sprayed water to 11 two sides of drilling.
In addition, spraying mechanism 7 further includes dust concentration probe (not shown), to detect dust concentration, dust concentration probe is close
Saw blade 2 is arranged.If dust concentration probe discovery dust concentration is higher, spraying mechanism can be started automatically, water is passed through along water pipe 71
It is sprayed from spray head 72 to 11 two sides of drilling, plays the function of dedusting.
In the present embodiment, intelligent positioning device 4 is cylindrical structure, and front end has tip, and length is 50-80 millimeters, example
Such as 70 millimeters.Intelligent positioning device 4 can float when with drilling 11 hole wall country rocks friction to avoid high-speed rotating saw blade 2
It moves, it is ensured that intelligent positioning device 4 is parallel with 11 axis of drilling, makes full use of high-speed rotating saw blade 2 according to preset side
Drilling joint-cutting, lancing speeds, ultrahigh in efficiency are carried out to complete soft or hard rock mass 1.Relative to existing blasting type crack engineering method, utilize
The saw-blade type joint-cutting device of the present embodiment carries out accurate joint-cutting operation, and it is more acurrate that joint-cutting forms size, and and explosion is not present
Formula mutation, reduces the mutation of surrounding rock body mechanical stress, is conducive to mining area operation safety.
Finally, the present invention also provides a kind of roof rock joint-cutting methods, refering to what is shown in Fig. 4, the following steps are included:
Multiple drillings 11 are drilled with according to joint-cutting trend on roof rock 1, and guarantee that hole wall is smooth, with inspection instrument for borehole pair
Drill hole inner wall finish is spied upon, if it find that being mingled with stone or inner wall roughness is unsatisfactory for requiring in drilling 11, is needed
Secondary drilling is carried out to drilling 11, to ensure the smooth of hole wall.In addition, drilling every hundred meters of hole deviation of 11 need to be guaranteed less than 1.5 degree.
Moreover, 11 spacing of drilling are determined according to the intensity of roof rock 1, in the higher region of 1 intensity of roof rock, bored using intensive
Hole, in the lower region of 1 intensity of roof rock, using loose drilling.
Using saw-blade type joint-cutting device as above, first intelligent positioning device 4 is protruded into drilling 11, then in intelligent positioning
Under device 4 guides, roof rock 1 is cut by saw blade 2, cutting region 12, when dust concentration is excessively high in cutting process
Carry out water spray dust.
The beneficial effects of the present invention are saw compared with prior art, the present invention being supported in the present invention with telescoping shoring column 5
Piece 2, it is convenient that roof rock 1 is cut, lancing location can be determined using intelligent positioning device 4, guarantee joint-cutting accuracy,
By spraying mechanism 7 to the joint-cutting operation water spray dust carried out in roof rock 1, the operability of joint-cutting, therefore this hair are improved
It is horizontal to improve joint-cutting for the joint-cutting operation of the bright roof rock 1 that can be applied to various tunnels and tunnel.
Saw-blade type joint-cutting device in the embodiment of the present invention can carry out the joint-cutting of the top plate in tunnel and tunnel in mining area exploitation
Operation, since the top plate in tunnel and tunnel generally all carries out comprehensive support by bracket, saw-blade type joint-cutting is filled in the embodiment of the present invention
Setting whole equipment can be installed in support of mines, telescoping shoring column 5 can by the open bore on rack plate or leave a blank upwards
It stretches out, joint-cutting operation can be carried out under effective support, avoid sudden safety accident.Moreover, the headspace needed in operation
It is smaller, can effectively it be cooperated with support of mines.
Technical solution of the present invention has been disclosed by alternative embodiment as above.Artisan will appreciate that not taking off
It changes and retouches made by the case where from the revealed scope and spirit of the present invention of appended claims of the invention, belongs to
Within scope of protection of the claims of the invention.
Claims (10)
1. a kind of saw-blade type joint-cutting device is drilled on the roof rock according to joint-cutting trend in advance for cutting roof rock
There are multiple drillings, which is characterized in that described device includes saw blade, intelligent positioning device, telescoping shoring column, spraying mechanism, power
Device and walking mechanism；Described telescoping shoring column one end is fixedly installed in the walking mechanism, and the other end installs the saw blade, institute
It states intelligent positioning device and is installed on the saw blade front end, match with the drilling, the spraying mechanism is to the saw blade work side
To water spray；The power device drives the saw blade to operate by transmission mechanism；When cutting roof rock, the intelligent positioning dress
Set it is parallel with the drilling axis, the intelligent positioner guiding under, by the saw blade to the roof rock carry out
It cuts, carries out water spray dust when dust concentration is excessively high in cutting process.
2. saw-blade type joint-cutting device as described in claim 1, which is characterized in that the walking mechanism is motor vehicles, described
Console is provided on motor vehicles, the console carries out position control to the telescoping shoring column.
3. saw-blade type joint-cutting device as claimed in claim 1 or 2, which is characterized in that the telescoping shoring column includes single oil cylinder
Bar is connected between two armed levers by connector, and more piece armed lever collectively constitutes foldable structure.
4. saw-blade type joint-cutting device as claimed in claim 3, which is characterized in that the spraying mechanism include water tank, water pipe and
Spray head, the water tank are set in the walking mechanism, and the water pipe is connected to the water tank and spray head, and the spray head is close to described
Saw blade setting, the spray head are sprayed water to the drilling two sides.
5. saw-blade type joint-cutting device as claimed in claim 4, which is characterized in that the spraying mechanism further includes that dust concentration is visited
Head, to detect dust concentration, the dust concentration is popped one's head in be arranged close to the saw blade.
6. saw-blade type joint-cutting device as claimed in claim 4, which is characterized in that the armed lever is hollow structure, the water pipe
It is set in the hollow structure of the armed lever.
7. saw-blade type joint-cutting device as claimed in claim 6, which is characterized in that the intelligent positioning device is cylindrical knot
Structure, front end have tip, and length is 50-80 millimeters.
8. a kind of roof rock joint-cutting method, which comprises the following steps:
Multiple drillings are drilled with according to joint-cutting trend on the roof rock, and guarantee that hole wall is smooth；
Using saw-blade type joint-cutting device as claimed in claim 1, the intelligent positioning device is first protruded into the brill
Kong Zhong cuts the roof rock by the saw blade, cutting process then under intelligent positioner guiding
Middle dust concentration carries out water spray dust when excessively high.
9. roof rock joint-cutting method as claimed in claim 8, which is characterized in that every hundred meters of hole deviation of the drilling are less than
1.5 degree.
10. roof rock joint-cutting method as claimed in claim 8, which is characterized in that the spacing of wells is according to the top plate
The intensity of country rock determines, in the higher region of roof rock intensity, using intensive drilling, the roof rock intensity compared with
Low region, using loose drilling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172913.0A CN105735983B (en) | 2016-03-24 | 2016-03-24 | Saw-blade type joint-cutting device and roof rock joint-cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172913.0A CN105735983B (en) | 2016-03-24 | 2016-03-24 | Saw-blade type joint-cutting device and roof rock joint-cutting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105735983A CN105735983A (en) | 2016-07-06 |
| CN105735983B true CN105735983B (en) | 2018-12-07 |
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| CN201610172913.0A Active CN105735983B (en) | 2016-03-24 | 2016-03-24 | Saw-blade type joint-cutting device and roof rock joint-cutting method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109139012B (en) * | 2018-08-22 | 2020-06-23 | 大同煤矿集团有限责任公司 | Mining chain arm saw continuous top cutting and seam forming method |
| CN108952720B (en) * | 2018-08-22 | 2020-04-14 | 大同煤矿集团有限责任公司 | Method for reducing primary caving step by mechanically cutting hard direct roof during initial mining |
| CN110056349B (en) * | 2019-03-16 | 2020-07-24 | 山东邦迈智能科技有限公司 | Coal mine roadway full-angle self-adaptive tunneling device and using method |
| CN110029952A (en) * | 2019-05-29 | 2019-07-19 | 中国矿业大学(北京) | Cleaner for the drilling of soft rock tunnel country rock dry method |
| CN111980703B (en) * | 2020-08-31 | 2022-10-18 | 中国矿业大学 | Lateral roof cutting pressure relief equipment and roof cutting pressure relief method for coal pillar dam body of underground reservoir |
| CN112127947B (en) * | 2020-09-25 | 2023-05-02 | 中国矿业大学 | Roof cutting and pressure relief equipment and roof cutting and pressure relief method for end head of fully-mechanized coal mining face |
| CN112793016B (en) * | 2021-02-22 | 2024-07-02 | 西安建筑科技大学 | Tunnel secondary lining crushing and dismantling device and method based on microwave technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3801219A1 (en) * | 1987-07-08 | 1989-01-19 | Dosco Overseas Eng Ltd | ESCAPE PROCEDURE AND DEVICE |
| CN2129340Y (en) * | 1992-06-06 | 1993-04-07 | 李爱清 | Saw-tooth tunneller |
| CN202781455U (en) * | 2012-05-30 | 2013-03-13 | 方莹 | Disc stone sawing machine modified from excavator |
| CN102717444B (en) * | 2012-06-28 | 2015-10-21 | 吴晓骥 | A kind of full-automatic mobile model articulated type mine stonecutter |
| CN203145829U (en) * | 2013-03-04 | 2013-08-21 | 中国矿业大学 | Small-bore piercing and hydraulic slotting integrated device based on anchor cable drilling machine |
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