CN110080777B - Automatic walking direction indicator device at top of coal mine tunnel and use method - Google Patents
Automatic walking direction indicator device at top of coal mine tunnel and use method Download PDFInfo
- Publication number
- CN110080777B CN110080777B CN201910201207.8A CN201910201207A CN110080777B CN 110080777 B CN110080777 B CN 110080777B CN 201910201207 A CN201910201207 A CN 201910201207A CN 110080777 B CN110080777 B CN 110080777B
- Authority
- CN
- China
- Prior art keywords
- control chip
- motor
- box body
- roadway
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003245 coal Substances 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008447 perception Effects 0.000 claims 1
- 230000005641 tunneling Effects 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Signs Or Road Markings (AREA)
- Gyroscopes (AREA)
Abstract
The invention discloses an automatic walking direction indicator device at the top of a coal mine tunnel, which comprises a fixed block, wherein a control chip is arranged at the center inside the fixed block, first cavities which are positioned at the left side and the right side of the control chip are respectively arranged inside the fixed block, one end of each first cavity, which is far away from the control chip, is communicated with the outside, and a first cylinder is fixedly arranged on the inner wall of one end of each first cavity, which is close to the control chip, and the automatic walking direction indicator: the invention has simple structure and simple and convenient operation, does not need manual operation in the whole moving process of the laser direction indicator along with the tunneling of a roadway in the follow-up process except the initial installation, avoids the installation of an anchor rod for fixing the laser direction indicator, improves the installation efficiency, does not cause the problem of injury to workers due to the stay in the roadway, and saves the use cost.
Description
Technical Field
The invention relates to the field of laser pointing for coal mine roadway tunneling, in particular to an automatic walking pointing instrument device for the top of a coal mine roadway and a using method.
Background
At present, a shield machine is guided by a laser direction indicator to carry out linear excavation in the excavation of a coal mine tunnel, no matter the specification attached to the laser direction indicator or the installation mode of the laser direction indicator introduced in a design manual is that an anchor rod special for fixedly installing the laser direction indicator is arranged at the top of the excavated tunnel every time, when the tunnel is excavated forwards for a certain distance, the laser direction indicator needs to be moved forwards, then the anchor rod needs to be arranged at the top of a front tunnel again to fixedly install the laser direction indicator, and the previous anchor rod is left in the tunnel, so that on one hand, waste is caused, the cost is increased, on the other hand, the labor intensity is improved by repeatedly installing the anchor rod, the working efficiency is reduced, and on the other hand, because the length of the exposed end of the anchor rod for fixing the laser direction indicator is longer, after the laser direction indicator is taken down, the head of a worker can be easily touched without processing the laser direction indicator, the anchor rod is sawed off when the anchor rod is processed, so that the labor intensity is improved, the working cost is increased, the number of required anchor rods is increased along with the tunneling of a roadway, the anchor rods driven in the early stage lose the effect in the later stage of the tunneling of the roadway, the materials are wasted, and the recovery cost is increased.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an automatic walking direction indicator device at the top of a coal mine tunnel, which can move a laser direction indicator without driving an anchor rod into the top of the tunnel in advance, can automatically climb on the inner wall of the top of the tunnel to walk forwards along with the stretching of tunneling work, does not need manual operation, and is simple, efficient, convenient and quick.
The invention adopts the technical scheme for solving the technical problems that: the automatic walking direction indicator device at the top of the coal mine roadway comprises a fixed block, wherein a control chip is arranged at the center inside the fixed block, a first cavity which is positioned at the left side and the right side of the control chip is respectively arranged inside the fixed block, one end of the first cavity, which is far away from the control chip, is communicated with the outside, a first air cylinder is fixedly arranged on the inner wall of one end of the first cavity, which is close to the control chip, a first telescopic column which extends to the left side and the right side of the fixed block is arranged at one end of the first air cylinder, a connecting column is fixedly arranged at the center of the bottom of the fixed block, a laser direction indicator is fixedly arranged at the bottom of the connecting column, a first laser emitter and a second laser emitter are respectively arranged at the left end and the right end of the laser direction indicator, an electronic gyroscope for sensing the rotation angle is, the round box is characterized in that a power box is fixedly arranged at the bottom of the round box, a first motor is fixedly arranged at the bottom of the inner wall of the power box, a first main shaft is fixedly arranged at the top of the first motor, the top of the first main shaft penetrates through the bottom of the inner wall of the round box and then is movably connected with the inside of the top of the inner wall of the round box, a first main shaft is fixedly arranged at the outer side of the inner part of the round box and is fixedly provided with a disc, one end of the disc close to a fixed block is hermetically connected with an extending block extending out of the round box through a rotary opening, the extending block is fixedly connected with one end of a first telescopic column, which is far away from a control chip, the top of the round box is fixedly provided with a first fixed plate, the top of the first fixed plate is fixedly provided with a first box body, a second air cylinder is respectively and fixedly arranged at the left, the top of the second telescopic column is respectively and fixedly provided with a second fixed plate, the top of the second fixed plate is respectively and fixedly provided with a second motor, the top of the second motor is fixedly provided with a first connecting plate, the center of the top of the second motor is provided with an anchor rod, the top of the anchor rod penetrates through the first connecting plate to reach the upper part of the first connecting plate, the left half part and the right half part of the bottom of the first connecting plate are respectively and fixedly provided with fixed rods positioned at the left side and the right side of the second motor, the bottom of the fixed rods penetrates through the first top of the box body to reach the left half part and the right half part of the inside of the first box body, the fixed rods are respectively positioned at the left side and the right side of the second cylinder, the bottoms of the fixed rods are respectively and hermetically connected, the electronic gyroscope can sense the rotating angle of the laser pointing instrument in the rotating process.
A use method of an automatic walking direction indicator device at the top of a coal mine roadway comprises the following steps:
firstly, first installation: the control chip controls a motor II in the left box body and the right box body to operate, the motor II moves to drive the anchor rods to rotate, the cylinder II can drive the anchor rods to lift up, the scaffold is placed in the roadway, the device is placed at the top of the scaffold, the tops of the anchor rods of the device are in contact with the top of the inner wall of the roadway, then the anchor rods drill into the inner wall of the top of the roadway, the device is fixedly installed, and the scaffold is removed after the installation is finished;
secondly, the pointing instrument works: the control chip controls a second laser transmitter at the right end of the laser direction indicator to emit laser to extend into the roadway for direction work;
thirdly, distance reduction: when the roadway is excavated forwards for a certain distance and the laser direction indicator needs to move forwards, the control chip controls the second motor inside the first left box body to rotate reversely, the second cylinder is controlled to retract into the second telescopic column, and the anchor rod inside the first left box body is separated from the top of the inner wall of the roadway at the moment;
fourthly, distance reduction: the control chip respectively controls the first air cylinder to retract into the first telescopic column, and the first telescopic column retracts to drive the left box body I and the fixed block to approach towards the right box body I, so that the relative distance is reduced, and the wall collision is prevented in the subsequent process;
fifthly: rotating: the control chip controls a motor I in the right box body I to rotate 180 degrees anticlockwise, the motor I rotates to drive the disc to rotate, the disc rotates to drive the extension block to rotate, the extension block rotates to drive the fixed block and the left box body I to rotate 180 degrees anticlockwise and then reach the right side of the right box body I, and the rotation opening can control the rotation angle to be not more than 180 degrees;
sixthly, self-fixing: the control chip controls a motor II in the left box body I to operate, the motor II moves to drive the anchor rod to rotate, and the air cylinder II can drive the anchor rod to rise and drill into the top of the inner wall of the roadway for fixed installation;
seventhly, reversing the direction indicator: and when the electronic gyroscope in the laser direction indicator senses that the electronic gyroscope rotates by 180 degrees, closing the second laser transmitter, and opening the second laser transmitter to perform direction work in front of the roadway.
The invention has the beneficial effects that: the invention has simple structure and simple and convenient operation, does not need manual operation in the whole moving process of the laser direction indicator along with the tunneling of a roadway in the follow-up process except the initial installation, avoids the installation of an anchor rod for fixing the laser direction indicator, improves the installation efficiency, does not cause the problem of injury to workers due to the stay in the roadway, and saves the use cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A of FIG. 1;
fig. 3 is a schematic structural view of the round case 13 of the present invention.
Description of reference numerals: the device comprises a fixing block 1, a control chip 2, a first cylinder 3, a first box body 4, a limiting block 5, a fixing rod 6, a second motor 7, a first connecting plate 8, an anchor rod 9, a second fixing plate 10, a second telescopic column 11, a second cylinder 12, a round box 13, a rotary opening 14, a first main shaft 15, a first motor 16, a power box 17, a disc 18, a first laser emitter 19, a first laser direction indicator 20, an electronic gyroscope 21, a second laser emitter 22, a connecting column 23, a first telescopic column 24, an extending block 25, a first cavity 26 and a first fixing plate 27.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
with reference to figures 1, 2, 3: the automatic walking direction indicator device at the top of the coal mine roadway in the embodiment comprises a fixed block 1, a control chip 2 is arranged at the center of the inner part of the fixed block 1, a first cavity 26 which is positioned at the left side and the right side of the control chip 2 is respectively arranged inside the fixed block 1, one end of the first cavity 26, which is far away from the control chip 2, is communicated with the outside, a first cylinder 3 is fixedly arranged on the inner wall of one end of the first cavity 26, which is close to the control chip 2, a first telescopic column 24 which extends to the left side and the right side of the fixed block 1 is arranged at one end of the first cylinder 3, a connecting column 23 is fixedly arranged at the center of the bottom of the fixed block 1, a laser direction indicator 20 is fixedly arranged at the bottom of the connecting column 23, a first laser emitter 19 and a second laser emitter 22 are respectively, the utility model discloses a round box, including fixed block 1, round box 13, motor, 16, first end of motor, first end of round box 13, power box 17, 16, first end of motor, first 15, second end of shaft, first 15, second end of shaft, first 15, first 24, first 15, first 13, second end of shaft, first 27, second end of fixed block, first 14, second end of fixed block, first 15, second end of shaft, first 16, first 15, second end of shaft, first 15, the left half part and the right half part of the bottom of the inner wall of the first box body 4 are respectively fixedly provided with a second air cylinder 12, the top of the second air cylinder 12 is provided with a second telescopic column 11, the top of the second telescopic column penetrates through the inner wall of the top of the first box body 4 to reach the upper part of the first box body 4, the outer side of the second telescopic column 11 is in sliding connection with the top of the first box body 4, the top of the second telescopic column 11 is respectively fixedly provided with a second fixed plate 10, the top of the second fixed plate 10 is respectively fixedly provided with a second motor 7, the top of the second motor 7 is fixedly provided with a first connecting plate 8, the top of the second motor 7 is provided with an anchor rod 9, the top of the anchor rod penetrates through the first connecting plate 8 to reach the upper part of the first connecting plate 8, the left half part and the right half part of the bottom of the first, the fixed rod 6 is respectively positioned on the left side and the right side of the second cylinder 12, the bottom of the fixed rod 6 is respectively connected with a limiting block 5 in a sealing mode, and the outer side of the fixed rod 6 is connected with the top of the first box body 4 in a sliding mode.
With reference to figures 1, 2, 3: a use method of an automatic walking direction indicator device at the top of a coal mine roadway comprises the following steps:
firstly, first installation: the control chip 2 controls a second motor 7 inside the left box body 4 and the right box body 4 to operate, the second motor 7 moves to drive the anchor rods 9 to rotate, the second air cylinder 12 can drive the anchor rods 9 to lift, the scaffold is placed in a roadway, the device is placed at the top of the scaffold, the tops of the anchor rods 9 are made to be in contact with the top of the inner wall of the roadway, then the anchor rods 9 drill into the inner wall of the top of the roadway, the device is fixedly installed, and the scaffold is removed after the installation is finished;
secondly, the pointing instrument works: the control chip 2 controls a second laser emitter 22 at the right end of the laser direction indicator 20 to emit laser to extend into the roadway for direction work;
thirdly, distance reduction: when the roadway is excavated forwards for a certain distance and the laser direction indicator 20 needs to move forwards, the control chip 2 controls the motor II 7 in the left box body I4 to rotate reversely, the control cylinder II 12 retracts into the telescopic column II 11, and the anchor rod 9 in the left box body I4 is separated from the top of the inner wall of the roadway at the moment;
fourthly, distance reduction: the control chip 2 respectively controls the cylinder I3 to retract into the telescopic column I24, the telescopic column I24 retracts to drive the left box I4 and the fixed block 1 to approach towards the right box I4, and the relative distance is reduced to prevent the walls from being touched in the subsequent process;
fifthly: rotating: the control chip 2 controls a first motor 16 in the first right box 4 to rotate 180 degrees anticlockwise, the first motor 16 rotates to drive a disc 18 to rotate, the disc 18 rotates to drive an extension block 25 to rotate, the extension block 25 rotates to drive a fixing block 1 and the first left box 4 to rotate 180 degrees anticlockwise and then reach the right side of the first right box 4, and a rotation opening 14 can control the rotation angle to be not more than 180 degrees;
sixthly, self-fixing: the control chip 2 controls the second motor 7 in the first left box body 4 to operate, the second motor 7 moves to drive the anchor rod 9 to rotate, and the second air cylinder 12 can drive the anchor rod 9 to rise and drill into the top of the inner wall of the roadway for fixed installation;
seventhly, reversing the direction indicator: and when the electronic gyroscope 21 in the laser direction indicator 20 senses that the electronic gyroscope rotates for 180 degrees, the second laser transmitter 22 is closed, and the first laser transmitter 19 is opened to perform direction work in front of the roadway.
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (2)
1. The utility model provides an automatic directional appearance device that walks in coal mine tunnel top, includes fixed block (1), characterized by: the utility model discloses a laser sensing device, including fixed block (1), cavity one (26) that are located the control chip (2) left and right sides is equipped with respectively at the inside center of fixed block (1), control chip (2) one end and external intercommunication are kept away from to cavity one (26), cavity one (26) are close to control chip (2) one end inner wall fixed mounting has cylinder one (3), cylinder one (3) are kept away from control chip (2) one end and are installed the flexible post one (24) that extend to fixed block (1) left and right sides, fixed block (1) bottom center fixed mounting has spliced pole (23), spliced pole (23) bottom fixed mounting has laser direction appearance (20), both ends are equipped with laser emitter one (19) and laser emitter two (22) respectively about laser direction appearance (20), inside electronic gyroscope (21) that are used for perception rotation angle that are equipped with of laser direction appearance (20), the utility model discloses a round box, including fixed block (1), circle box (13), headstock (13), motor (17), motor (16), first (16) top fixed mounting have a main shaft (15), first (15) top pass round box (13) inner wall bottom back and the inside swing joint in round box (13) inner wall top, first (15) of main shaft is located round box (13) inside part outside fixed mounting have disc (18), disc (18) are close to fixed block (1) one end sealing connection and extend to the outer extension piece (25) of round box (13) through rotatory opening (14), control chip (2) one end fixed connection is kept away from with flexible post (24) to extension piece (25), the round box is characterized in that a first fixing plate (27) is fixedly mounted at the top of the round box (13), a first box body (4) is fixedly mounted at the top of the first fixing plate (27), a second cylinder (12) is respectively fixedly mounted at the left half part and the right half part of the inner wall bottom of the first box body (4), a second telescopic column (11) is mounted at the top of the second cylinder (12), the top of the second telescopic column penetrates through the inner wall at the top of the first box body (4) to reach the first box body (4), the outer side of the second telescopic column (11) is slidably connected with the top of the first box body (4), a second fixing plate (10) is respectively fixedly mounted at the top of the second telescopic column (11), a second motor (7) is respectively fixedly mounted at the top of the second fixing plate (10), a first connecting plate (8) is fixedly mounted at the top of the second motor (7), and an anchor rod (, connecting plate (8) bottom left half and right half respectively fixed mounting have dead lever (6) that are located two (7) left and right sides of motor, dead lever (6) bottom is passed box (4) top and is reachd box (4) inside left half and right half, dead lever (6) are located cylinder two (12) left and right sides respectively, dead lever (6) bottom is sealing connection respectively has stopper (5), sliding connection between dead lever (6) outside and box (4) top.
2. The use method of the automatic walking direction indicator device at the top of the coal mine roadway according to claim 1 comprises the following steps:
firstly, first installation: the control chip (2) controls a second motor (7) inside the left box body (4) and the right box body (4) to operate, the second motor (7) moves to drive the anchor rods (9) to rotate, the second cylinder (12) can drive the anchor rods (9) to lift, the scaffold is placed in a roadway, the device is placed at the top of the scaffold, the top of the anchor rods (9) of the device is made to be in contact with the top of the inner wall of the roadway, then the anchor rods (9) drill into the inner wall of the top of the roadway, the device is fixedly installed, and the scaffold is removed after installation is finished;
secondly, the pointing instrument works: the control chip (2) controls a second laser emitter (22) at the right end of the laser direction indicator (20) to emit laser to extend into the roadway for direction work;
thirdly, distance reduction: when the roadway is excavated forwards for a certain distance and the laser direction indicator (20) needs to move forwards, the control chip (2) controls the motor II (7) in the left box body I (4) to rotate reversely, the control cylinder II (12) retracts into the telescopic column II (11), and at the moment, the anchor rod (9) in the left box body I (4) is separated from the top of the inner wall of the roadway;
fourthly, distance reduction: the control chip (2) respectively controls the cylinder I (3) to retract into the telescopic column I (24), the telescopic column I (24) retracts to drive the left box I (4) and the fixed block (1) to approach towards the right box I (4), and the relative distance is reduced to prevent the walls from being touched in the subsequent process;
fifthly: rotating: the control chip (2) controls a first motor (16) in the right box body (4) to rotate 180 degrees anticlockwise, the first motor (16) rotates to drive the disc (18) to rotate, the disc (18) rotates to drive the extension block (25) to rotate, the extension block (25) rotates to drive the fixing block (1) and the left box body (4) to rotate 180 degrees anticlockwise and then reach the right side of the right box body (4), and the rotation opening (14) can control the rotation angle to be not more than 180 degrees;
sixthly, self-fixing: the control chip (2) controls a second motor (7) in the left box body (4) to operate, the second motor (7) moves to drive the anchor rod (9) to rotate, and the second cylinder (12) can drive the anchor rod (9) to lift and drill into the top of the inner wall of the roadway for fixed installation;
seventhly, reversing the direction indicator: and when the electronic gyroscope (21) in the laser direction indicator (20) senses that the electronic gyroscope rotates for 180 degrees, the second laser transmitter (22) is closed, and the first laser transmitter (19) is opened to perform direction work in front of the roadway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201207.8A CN110080777B (en) | 2019-03-18 | 2019-03-18 | Automatic walking direction indicator device at top of coal mine tunnel and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201207.8A CN110080777B (en) | 2019-03-18 | 2019-03-18 | Automatic walking direction indicator device at top of coal mine tunnel and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110080777A CN110080777A (en) | 2019-08-02 |
| CN110080777B true CN110080777B (en) | 2020-09-08 |
Family
ID=67413212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910201207.8A Expired - Fee Related CN110080777B (en) | 2019-03-18 | 2019-03-18 | Automatic walking direction indicator device at top of coal mine tunnel and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110080777B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5838430A (en) * | 1996-07-03 | 1998-11-17 | Nearfield Systems Incorporated | Dual beam laser device for linear and planar alignment |
| JP2002310654A (en) * | 2001-04-10 | 2002-10-23 | Hitachi Koki Co Ltd | Laser-positioning device |
| US9803978B2 (en) * | 2015-02-19 | 2017-10-31 | The United States Of America As Represented By The Secretary Of The Department Of The Interior | Laser rod surface elevation table device and method |
| CN205642375U (en) * | 2016-05-03 | 2016-10-12 | 三门峡龙王庄煤业有限责任公司 | Tunnel laser guide instrument fixing device |
| CN207300245U (en) * | 2017-06-07 | 2018-05-01 | 贵州大学 | A kind of mine laser director mounting bracket |
| CN208187403U (en) * | 2018-04-10 | 2018-12-04 | 中煤第三建设（集团）有限责任公司 | A kind of laser orientation instrument bracket mounting device |
| CN208296843U (en) * | 2018-06-27 | 2018-12-28 | 苏州瑞耀三维科技有限公司 | A kind of mine laser indicator device |
| CN108896034A (en) * | 2018-09-20 | 2018-11-27 | 山西煤炭运销集团晋城有限公司 | Laser orientation instrument anti-deflection device for underground coal mine |
-
2019
- 2019-03-18 CN CN201910201207.8A patent/CN110080777B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN110080777A (en) | 2019-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11459888B2 (en) | Auxiliary transportation and support system used after rapid excavation | |
| CN105804764B (en) | One kind bores the formula development machine that rises | |
| CN110671107B (en) | Tunneling, supporting and anchoring all-in-one machine system for underground rapid tunneling and using method thereof | |
| CN102606152B (en) | Novel quick digging and anchoring integrated machine for rectangular coal roadway | |
| CN209011836U (en) | A kind of rock tunnel(ling) machine and its forward probe and suspension roof support complex conversion mechanism | |
| CN102155161A (en) | Novel omnibearing drill boom of drill loader | |
| US20210025235A1 (en) | Drilling apparatus arrangement and method for producing a bore | |
| CN205823185U (en) | Automatic moving type is drilled support integrated machine | |
| CN110080777B (en) | Automatic walking direction indicator device at top of coal mine tunnel and use method | |
| CN104763452A (en) | Transferring and anchor rod anchor cable supporting system | |
| CN106065765A (en) | Angular bit machine | |
| CN101845952B (en) | Movable three-arm top-assisting anchor rod and anchor cable construction drill carriage | |
| CN208845176U (en) | Tunnel piercing protective device | |
| CN207905810U (en) | A kind of shield machine soil storehouse ball valve slag cleaning device | |
| CN201963199U (en) | Novel omnibearing drilling arm of drilling and installing machine | |
| CN114233196B (en) | Construction device and construction method for underground space communication channel | |
| CN213743469U (en) | Anchor rod mounting device for rock drilling jumbo | |
| CN204397269U (en) | In a kind of tunnel, cutter head of shield machine assists tool changing device | |
| CN110094210B (en) | Full-automatic coal roadway self-induction unmanned tunneling device and using method | |
| CN211851655U (en) | Drilling equipment for tunnel blasting | |
| CN211623302U (en) | Explosion device for karst cave pile foundation construction | |
| CN114575899A (en) | TBM (tunnel boring machine) online multi-mode supporting system and construction method | |
| KR100826734B1 (en) | Tunnel crawler drill machine | |
| GB2145134A (en) | Circular heading machine | |
| KR200297756Y1 (en) | The drifter boring machine to freely shift the body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200819 Address after: Naisonglin Town, Inner Mongolia 010499 Applicant after: Inner Mongolia Hengdong group Hongya Coal Co., Ltd Address before: Furong Town Yueqing city of Zhejiang province Wenzhou City West Village 325612 Applicant before: Shi Zuojun |
|
| TA01 | Transfer of patent application right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 Termination date: 20210318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |