CN111550258A - Adjusting equipment for tunneling head of coal mine tunneling machine - Google Patents
Adjusting equipment for tunneling head of coal mine tunneling machine Download PDFInfo
- Publication number
- CN111550258A CN111550258A CN202010427043.3A CN202010427043A CN111550258A CN 111550258 A CN111550258 A CN 111550258A CN 202010427043 A CN202010427043 A CN 202010427043A CN 111550258 A CN111550258 A CN 111550258A
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- Prior art keywords
- baffle
- face
- base
- wall
- coal mine
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- 239000003245 coal Substances 0.000 title claims abstract description 17
- 230000005641 tunneling Effects 0.000 title claims description 15
- 239000004744 fabric Substances 0.000 claims abstract description 25
- 239000003344 environmental pollutant Substances 0.000 abstract description 10
- 231100000719 pollutant Toxicity 0.000 abstract description 10
- 239000000428 dust Substances 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000005520 cutting process Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21D9/10—Making by using boring or cutting machines
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- 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the technical field of coal mine heading machine equipment, in particular to a regulating device for a heading head of a coal mine heading machine, which comprises a heading machine base, wherein a baffle base is arranged on the outer wall of the front end of the upper end surface of the heading machine base, a telescopic driving support is arranged at the upper end of the right side of the heading machine base, and a heading drill bit is arranged at the end part of the telescopic driving support, and the regulating device has the beneficial effects that: according to the invention, the protection of the development machine base is realized by arranging the matching of the baffle plate, the side plate and the front plate, so that the impact extrusion damage of larger gravel pollutants on the outer wall of the development machine base is avoided, and the guide bulge and the conveying belt of the cambered surface are matched, so that the timely transportation and discharge of gravel blocks are realized, and the continuous extrusion damage is avoided; have flexible groove and folding cloth curtain's baffle through the setting to realize that the position of sheltering from of baffle is flexible from top to bottom along with the regulation of flexible drive support angle, reach the abundant protection of adjusting position equipment, the folding cloth curtain of cooperation realizes the isolated to the dust, has improved the protection to equipment greatly.
Description
Technical Field
The invention relates to the technical field of coal mine heading machine equipment, in particular to adjusting equipment for a heading head of a coal mine heading machine.
Background
A heading machine is a machine for cutting roadways on a flat ground. The types of the development machine are many: the tunnel boring machine is divided into an open type boring machine and a shield type boring machine according to the operation mode. The working mode mainly comprises a traveling mechanism, a working mechanism, a loading and transporting mechanism and a transshipment mechanism. As the travelling mechanism advances forward, the cutting head in the working mechanism continuously crushes the rock and transports the crushed rock away. The tunnel forming machine has the advantages of safety, high efficiency, good tunnel forming quality and the like, but has high manufacturing cost, complex structure and large loss.
The position of a drill bit of the existing heading machine can be adjusted in a telescopic and vertical angle manner under the action of a driving device, a large included angle gap is formed between a telescopic driving support of the drill bit and a base in the adjusting process, the drill bit can generate a large amount of broken stone or dust pollution in the heading process, pollutants float and fly in the air and then enter a connecting inner cavity of the telescopic driving support, and therefore damage to equipment for adjusting the position of the heading machine is caused. Meanwhile, heavy gravels in pollutants fall on the machine base to cause vibration damage of the machine.
Therefore, the adjusting equipment for the tunneling head of the coal mine tunneling machine is provided, and the problem of pollution of broken stones and dust to the adjusting position equipment in the tunneling process is solved.
Disclosure of Invention
The invention aims to provide a device for adjusting a tunneling head of a coal mine tunneling machine, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an adjusting device of a coal mine heading machine heading head comprises a heading machine base, wherein a baffle base is installed on the outer wall of the front end of the upper end face of the heading machine base, a telescopic driving support is installed on the upper end of the right side of the heading machine base, a heading drill bit is installed at the end part of the telescopic driving support, a connecting block is fixedly welded on the left side of the lower end face of the telescopic driving support, limiting side plates are symmetrically arranged on the front side and the rear side of the upper end face of the baffle base, a limiting front plate is vertically welded on the left side of the upper end face of the baffle base, a guide bulge is vertically welded in the middle of the upper end face of the baffle base, a first baffle is vertically installed on the right side of the upper end face of the baffle base, a rotating shaft is arranged at the lower end of the right side of the guide bulge, a, the inner chamber upper end of lift groove slides and pegs graft and has the second baffle, the slot of right angle cross-section is transversely seted up to the right side upper end outer wall of second baffle, and the up end of second baffle is provided with the three screw hole of linear distribution, the lower extreme of screw hole extends to the lower extreme of slot, and folding curtain made of cloth is installed to the upper end of second baffle, be provided with the connection lantern ring in the middle of the up end of folding curtain made of cloth, the left side vertical welding of connecting block has the screw rod, the connection lantern ring slides and cup joints the outer wall at the screw rod, and is provided with lock nut between connection lantern ring and the screw.
Preferably, the outline position of the outer edge of the lower end of the baffle base is provided with a plurality of fixing screws distributed in a circumferential array, and the baffle base is fixedly connected with the tunneling machine base through the fixing screws distributed in the circumferential array.
Preferably, the outer walls of the front side and the rear side of the guide protrusion are respectively provided with a cambered surface groove which is sunken downwards, a conveying belt is arranged between the lower end of the cambered surface groove and the limiting side plate, and the upper end surfaces of the front side and the rear side of the cambered surface groove are flush with the upper end surface of the conveying belt.
Preferably, the lower end of the first baffle is provided with a through hole penetrating through the front and the back, the through hole at the lower end of the first baffle is rotatably inserted into the outer wall of the rotating shaft, and the left end face of the first baffle is vertically attached to the right end face of the guide protrusion.
Preferably, the front side and the rear side of the second baffle are fixedly provided with sliding strips with T-shaped sections, the sliding strips are inserted into the inner cavity of the sliding groove in a sliding mode, the upper end of the sliding groove penetrates through the upper end face of the first baffle, and the lower end of the sliding groove extends to the lower end face of the lifting groove.
Preferably, the position of the upper end surface of the second baffle, which corresponds to the position of the limit sleeve rod, is penetrated by a lifting jack, and the lifting jack is inserted into the outer wall of the limit sleeve rod in a sliding manner.
Preferably, the lower end of the folding cloth curtain is fixedly bonded with a right-angle inserting strip, the right-angle inserting strip is transversely inserted into an inner cavity of the slot, a locking screw is rotatably arranged in an internal thread of the screw hole, and the lower end of the locking screw penetrates through the upper end face and the lower end face of the right-angle inserting strip.
Preferably, the locking nut is rotatably arranged on the outer wall of the screw in a threaded manner, and the end face of one side, close to the connecting lantern ring, of the locking nut is tightly extruded on the connecting lantern ring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the protection of the development machine base is realized by arranging the matching of the baffle plate, the side plate and the front plate, so that the impact extrusion damage of larger gravel pollutants on the outer wall of the development machine base is avoided, and the guide bulge and the conveying belt of the cambered surface are matched, so that the timely transportation and discharge of gravel blocks are realized, and the continuous extrusion damage is avoided;
2. according to the invention, the baffle with the telescopic groove and the folding cloth curtain is arranged, so that the shielding position of the baffle can be stretched up and down along with the adjustment of the angle of the telescopic driving support, the full protection of equipment at the adjusting position is achieved, the dust is isolated by matching with the folding cloth curtain, and the protection of the equipment is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an angle adjustment structure of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2;
FIG. 5 is a schematic structural view of a baffle base of the present invention;
FIG. 6 is a perspective view of a first baffle of the present invention;
fig. 7 is a schematic perspective view of a second baffle of the present invention.
In the figure: 1. a heading machine base; 2. a telescopic driving bracket; 3. a tunneling drill bit; 4. a baffle base; 5. a guide projection; 6. a rotating shaft; 7. a first baffle plate; 8. a limiting sleeve rod; 9. a second baffle; 10. folding the cloth curtain; 11. connecting blocks; 12. a limiting side plate; 13. a limiting front plate; 14. a conveyor belt; 15. a cambered surface groove; 16. a connecting lantern ring; 17. a lifting groove; 18. a chute; 19. a through hole; 20. a slot; 21. a slide bar; 22. screw holes; 23. lifting jacks; 24. a screw; 25. locking the nut; 26. locking the screw; 27. right-angle cutting; 28. and fixing the screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, the present invention provides a technical solution:
the utility model provides an adjusting equipment of colliery entry driving machine tunnelling head, includes tunnelling frame 1, and the baffle base 4 is installed to the up end front end outer wall of tunnelling frame 1, and flexible drive support 2 is installed to the right side upper end of tunnelling frame 1, and the end of flexible drive support 2 is installed and is tunnelled drill bit 3.
The outline position of the outer edge of the lower end of the baffle base 4 is provided with a plurality of fixing screws 28 distributed in a circumferential array, and the baffle base 4 is fixedly connected with the heading machine base 1 through the fixing screws 28 distributed in the circumferential array.
The front and back bilateral symmetry of the upper end face of the baffle base 4 is provided with limiting side plates 12, the left side of the upper end face of the baffle base 4 is vertically welded with a limiting front plate 13, and by means of the matching of the limiting side plates 12 and the limiting front plate 13, crushed stone pollutants generated during tunneling are gathered in an upper end inner cavity of the baffle base 4, so that the purpose of unified treatment is achieved.
Vertical welding has the direction arch 5 in the middle of baffle base 4's the up end, the both sides outer wall sets up to undercut's cambered surface recess 15 around the direction arch 5, be provided with conveyer belt 14 between cambered surface recess 15's the lower extreme and the spacing curb plate 12, both sides up end flushes with conveyer belt 14's up end around cambered surface recess 15, utilize the cooperation of direction arch 5 and cambered surface recess 15, make the rubble or the dust landing that drop to on conveyer belt 14, utilize conveyer belt 14's transport to see off the pollutant in time, avoid causing piling up of pollutant, conveyer belt 14 passes through driving motor drive, not drawn in the drawing.
The right side of first baffle 7 is provided with lift groove 17, and the front and back inner wall of lift groove 17 is provided with spout 18, and both sides fixed mounting has the draw runner 21 of T shape cross-section around second baffle 9, and draw runner 21 slides and pegs graft in the inner chamber of spout 18, and the up end of first baffle 7 is run through to the upper end of spout 18, and the lower extreme of spout 18 extends to the lower terminal surface of lift groove 17, utilizes the cooperation of spout 18 and draw runner 21 to peg graft, realizes the slip grafting installation of second baffle 9.
The inner chamber of lift groove 17 is provided with a pair of stop collar 8 of symmetry around, the inner chamber upper end of lift groove 17 slides and pegs graft and has second baffle 9, the up end of second baffle 9 runs through with the corresponding position of stop collar 8 and has seted up lift jack 23, lift jack 23 slides and pegs graft at stop collar 8's outer wall, utilize stop collar 8 and lift jack 23's cooperation to slide and peg graft, and then increase joint strength and positional stability between first baffle 7 and the second baffle 9, make second baffle 9 slide from top to bottom along lift groove 17 is vertical.
Folding cloth curtain 10 is installed to the upper end of second baffle 9, and right angle cross-section's slot 20 has transversely been seted up to the right side upper end outer wall of second baffle 9, and the lower extreme of folding cloth curtain 10 is fixed to bond has right angle cutting 27, and right angle cutting 27 transversely pegs graft at the inner chamber of slot 20, utilizes slot 20 and right angle cutting 27's cooperation, realizes the position installation of folding cloth curtain 10 lower extreme.
The upper end face of the second baffle 9 is provided with three screw holes 22 which are linearly distributed, the lower ends of the screw holes 22 extend to the lower ends of the slots 20, locking screws 26 are rotatably installed in the screw holes 22 through internal threads, the lower ends of the locking screws 26 penetrate through the upper end face and the lower end face of the right-angle inserting strip 27 in an inserting mode, and the lower ends of the folding cloth curtains 10 are fixedly installed through the matching of the screw holes 22 and the locking screws 26.
The fixed welding in lower terminal surface left side of flexible drive support 2 has connecting block 11, is provided with in the middle of the up end of folding cloth curtain 10 and connects the lantern ring 16, and the vertical welding in left side of connecting block 11 has screw rod 24, connects lantern ring 16 and slides and cup joints the outer wall at screw rod 24, utilizes the cooperation of connecting lantern ring 16 and screw rod 24, realizes that the position between folding cloth curtain 10 upper end and the flexible drive support 2 is connected.
A locking nut 25 is arranged between the connecting lantern ring 16 and the screw rod 24, the locking nut 25 is rotatably installed on the outer wall of the screw rod 24 in a threaded mode, the end face, close to the connecting lantern ring 16, of one side of the locking nut 25 is tightly extruded on the connecting lantern ring 16, and the locking nut 25 is used for achieving fixed installation of the upper end of the folding cloth curtain 10.
The working principle is as follows: firstly, the baffle base 4 is fixedly connected with the tunneling machine base 1 through the fixing screws 28 distributed in a circumferential array mode, the limiting side plates 12 and the limiting front plates 13 are matched, so that crushed stone pollutants generated during tunneling are gathered in the inner cavity at the upper end of the baffle base 4, the purpose of unified treatment is realized, the guide protrusions 5 and the arc-surface grooves 15 are matched, the dropped crushed stones or dust fall onto the conveying belt 14, the pollutants are timely conveyed out through conveying of the conveying belt 14, and accumulation of the pollutants is avoided.
The first baffle 7 is rotatably mounted on the baffle base 4 by the insertion and matching of the through hole 19 and the rotating shaft 6, the second baffle 9 is slidably inserted and mounted by the insertion and matching of the chute 18 and the sliding strip 21, the limit sleeve rod 8 is slidably inserted and matched with the lifting jack 23, and then increase joint strength and positional stability between first baffle 7 and the second baffle 9, make second baffle 9 slide from top to bottom vertically along lift groove 17, utilize slot 20 and right angle cutting 27's cooperation, realize the position installation of folding cloth curtain 10 lower extreme, utilize screw hole 22 and locking screw 26's cooperation, realize the fixed mounting of folding cloth curtain 10 lower extreme, utilize the cooperation of the connecting collar 16 and screw rod 24, realize the position connection between folding cloth curtain 10 upper end and the flexible drive support 2, utilize lock nut 25 to realize the fixed mounting of folding cloth curtain 10 upper end.
And then utilize the flexible baffle of right side protection that first baffle 7, second baffle 9 and folding cloth curtain 10 are constituteed, realize the protection to the 2 right side hookup locations of flexible driving support, utilize the flexible connection adaptation between first baffle 7, second baffle 9 and the folding cloth curtain 10 in the angle modulation of tunnelling drill bit 3 simultaneously, reach the abundant protection to adjusting position equipment, the cooperation is folded cloth curtain 10 and is realized the isolated to the dust, the protection to equipment has been improved greatly.
The conveying belt 14 is a common technology in the existing coal mining transportation technology, and details are not described, and the telescopic driving support 2 and the heading drill bit 3 are respectively a self-contained mature technology of the existing heading machine.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an adjusting equipment of colliery entry driving machine tunnelling head, includes tunnelling frame (1), its characterized in that: the outer wall of the front end of the upper end face of the development machine base (1) is provided with a baffle base (4), the upper end of the right side of the development machine base (1) is provided with a telescopic driving support (2), the end part of the telescopic driving support (2) is provided with a development drill bit (3), the left side of the lower end face of the telescopic driving support (2) is fixedly welded with a connecting block (11), the front side and the rear side of the upper end face of the baffle base (4) are symmetrically provided with limit side plates (12), the left side of the upper end face of the baffle base (4) is vertically welded with a limit front plate (13), the middle of the upper end face of the baffle base (4) is vertically welded with a guide bulge (5), the right side of the upper end face of the baffle base (4) is vertically provided with a first baffle (7), the lower end of the right side of, a pair of limit sleeve rods (8) which are symmetrical front and back are arranged in the inner cavity of the lifting groove (17), sliding grooves (18) are arranged on the front inner wall and the back inner wall of the lifting groove (17), a second baffle (9) is inserted at the upper end of the inner cavity of the lifting groove (17) in a sliding manner, the outer wall of the upper end of the right side of the second baffle plate (9) is transversely provided with a slot (20) with a right-angle section, the upper end surface of the second baffle plate (9) is provided with three screw holes (22) which are distributed linearly, the lower end of the screw hole (22) extends to the lower end of the slot (20), the upper end of the second baffle plate (9) is provided with a folding cloth curtain (10), a connecting lantern ring (16) is arranged in the middle of the upper end surface of the folding cloth curtain (10), a screw rod (24) is vertically welded at the left side of the connecting block (11), the connecting lantern ring (16) is sleeved on the outer wall of the screw rod (24) in a sliding way, and a locking nut (25) is arranged between the connecting lantern ring (16) and the screw rod (24).
2. An adjustment device for a coal mine entry head according to claim 1, characterised in that: the baffle base (4) is characterized in that a plurality of fixing screws (28) distributed in a circumferential array are arranged at the outline position of the outer edge of the lower end of the baffle base (4), and the baffle base (4) is fixedly connected with the tunneling machine base (1) through the fixing screws (28) distributed in the circumferential array.
3. An adjustment device for a coal mine entry head according to claim 1, characterised in that: the outer wall of the front side and the rear side of the guide protrusion (5) are respectively provided with a cambered surface groove (15) which is sunken downwards, a conveying belt (14) is arranged between the lower end of the cambered surface groove (15) and the limiting side plate (12), and the upper end surfaces of the front side and the rear side of the cambered surface groove (15) are flush with the upper end surface of the conveying belt (14).
4. An adjustment device for a coal mine entry head according to claim 1, characterised in that: the lower end of the first baffle (7) is provided with a through hole (19) which penetrates through the front and the back, the through hole (19) at the lower end of the first baffle (7) is rotatably inserted into the outer wall of the rotating shaft (6), and the left end face of the first baffle (7) is vertically attached to the right end face of the guide protrusion (5).
5. An adjustment device for a coal mine entry head according to claim 1, characterised in that: the front side and the rear side of the second baffle (9) are fixedly provided with sliding strips (21) with T-shaped sections, the sliding strips (21) are inserted into the inner cavity of the sliding groove (18) in a sliding mode, the upper end of the sliding groove (18) penetrates through the upper end face of the first baffle (7), and the lower end of the sliding groove (18) extends to the lower end face of the lifting groove (17).
6. An adjustment device for a coal mine entry head according to claim 1, characterised in that: the upper end face of the second baffle (9) is penetrated through a lifting jack (23) at a position corresponding to the limiting sleeve rod (8), and the lifting jack (23) is inserted into the outer wall of the limiting sleeve rod (8) in a sliding mode.
7. An adjustment device for a coal mine entry head according to claim 1, characterised in that: the lower end of the folding cloth curtain (10) is fixedly bonded with a right-angle inserting strip (27), the right-angle inserting strip (27) is transversely inserted into an inner cavity of the slot (20), a locking screw (26) is rotatably installed in an internal thread of the screw hole (22), and the lower end of the locking screw (26) penetrates through and is inserted into the upper end face and the lower end face of the right-angle inserting strip (27).
8. An adjustment device for a coal mine entry head according to claim 1, characterised in that: the locking nut (25) is rotatably arranged on the outer wall of the screw rod (24) in a threaded mode, and the end face, close to one side of the connecting lantern ring (16), of the locking nut (25) is tightly extruded on the connecting lantern ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010427043.3A CN111550258B (en) | 2020-05-19 | 2020-05-19 | Adjusting equipment for tunneling head of coal mine tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010427043.3A CN111550258B (en) | 2020-05-19 | 2020-05-19 | Adjusting equipment for tunneling head of coal mine tunneling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111550258A true CN111550258A (en) | 2020-08-18 |
| CN111550258B CN111550258B (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010427043.3A Active CN111550258B (en) | 2020-05-19 | 2020-05-19 | Adjusting equipment for tunneling head of coal mine tunneling machine |
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| Country | Link |
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| CN (1) | CN111550258B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982195Y (en) * | 2006-12-06 | 2007-11-28 | 娄底博盛科技有限公司 | Small-sized cantilevered tunneller for coal roadway |
| CN105888684A (en) * | 2016-06-08 | 2016-08-24 | 安徽兴宇轨道装备有限公司 | Soil clearing device for tunnel underground excavation machine |
| CN206448807U (en) * | 2016-08-24 | 2017-08-29 | 乌海市天裕工贸有限公司 | A kind of colliery development machine with safety device |
| CN208137939U (en) * | 2018-03-31 | 2018-11-23 | 张晓根 | A kind of coal mine development machine |
| CN208885280U (en) * | 2018-08-24 | 2019-05-21 | 南宁中铁广发轨道装备有限公司 | A kind of shield machine belt slag cleaning device |
-
2020
- 2020-05-19 CN CN202010427043.3A patent/CN111550258B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982195Y (en) * | 2006-12-06 | 2007-11-28 | 娄底博盛科技有限公司 | Small-sized cantilevered tunneller for coal roadway |
| CN105888684A (en) * | 2016-06-08 | 2016-08-24 | 安徽兴宇轨道装备有限公司 | Soil clearing device for tunnel underground excavation machine |
| CN206448807U (en) * | 2016-08-24 | 2017-08-29 | 乌海市天裕工贸有限公司 | A kind of colliery development machine with safety device |
| CN208137939U (en) * | 2018-03-31 | 2018-11-23 | 张晓根 | A kind of coal mine development machine |
| CN208885280U (en) * | 2018-08-24 | 2019-05-21 | 南宁中铁广发轨道装备有限公司 | A kind of shield machine belt slag cleaning device |
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| Publication number | Publication date |
|---|---|
| CN111550258B (en) | 2021-12-07 |
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