CN113338976B - Chain saw cutting machine - Google Patents
Chain saw cutting machine Download PDFInfo
- Publication number
- CN113338976B CN113338976B CN202110666634.0A CN202110666634A CN113338976B CN 113338976 B CN113338976 B CN 113338976B CN 202110666634 A CN202110666634 A CN 202110666634A CN 113338976 B CN113338976 B CN 113338976B
- Authority
- CN
- China
- Prior art keywords
- supporting
- moving
- cutting
- chain saw
- movable
- 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.)
- Active
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 119
- 230000007246 mechanism Effects 0.000 claims abstract description 94
- 230000008093 supporting effect Effects 0.000 claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 230000000712 assembly Effects 0.000 claims description 22
- 238000000429 assembly Methods 0.000 claims description 22
- 230000009467 reduction Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000007306 turnover Effects 0.000 claims description 7
- 238000003384 imaging method Methods 0.000 claims description 5
- 238000013519 translation Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 9
- 239000004575 stone Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/1086—Drives or transmissions specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
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)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The application provides a chain saw cutting machine, which comprises a crawler travelling mechanism; the supporting mechanism is arranged on the crawler travelling mechanism; the pushing mechanism is arranged on the supporting mechanism, one side of the pushing mechanism is provided with a moving mechanism, and the moving mechanism is pushed to move through the pushing mechanism; the cutting chain saw, mobilizable setting of cutting chain saw is on moving mechanism, drives the cutting chain saw through moving mechanism and realizes controlling about and rotatory cutting through setting up moving mechanism, and in cutting process, through the second moving frame rotate under the rotatory effect of circumference rotation platform and drive whole tool bit regulation conversion mechanism arc and rotate the cutting, preliminary rotation location through first moving frame, then realize the accurate cutting of tunnel top radian through the accurate positioning of tool bit regulation conversion mechanism to efficiency of construction has been improved.
Description
Technical Field
The application relates to the technical field of tunnel construction, in particular to a chain saw cutting machine.
Background
At present, with the continuous expansion of the engineering construction scale of China, the tunnel construction of China has come to the unprecedented development opportunity, and China has undoubtedly become a large country of world tunnels. At present, the main methods applied to the construction of hard rock stratum tunnels in China comprise TBM and drilling and blasting methods, wherein the drilling and blasting method has the defects of complex working procedures, slow progress, high labor intensity of workers, severe super-underexcavation and the like, and the high-efficiency, safe and civilized construction is difficult to realize. TBM has the disadvantages of high equipment cost, single section form, complex operation and the like. In the existing hard rock tunnel construction method, cutting construction is carried out through a cutting machine, as the tunnel is in different shapes such as a horseshoe shape, a round shape and a rectangular shape, the existing cutting machine can only cut the rectangular shape, when the cutting of the arc angle is involved in the horseshoe-shaped structure, the cutting machine cannot realize an integrated cutting process, so that the cutting efficiency is reduced, meanwhile, after the tunnel is cut, the cut stone is required to be separated, but the existing cutting machine cannot be used for separating the stone, and only another separating method can be used.
Disclosure of Invention
The present application aims to solve, at least to some extent, one of the technical problems in the related art.
To this end, the aim at of this application provides a chain saw cutting machine, through setting up moving mechanism, in the cutting process, rotate through the second and drive whole tool bit regulation conversion mechanism arc under the rotatory effect of circumference rotation platform and rotate the cutting, and when cutting to the top, it can be on a parallel with cutting direction all the time to drive cutting chain saw rotation through the rotation of hydraulic turntable, prevent to cut cutting chain saw when cutting to arc top and be in vertical state unable cutting, and in order to realize cutting radian's accuracy in the cutting process, directly insert cutting chain saw along long limit, then drive cutting chain saw's the translation cutting of small amplitude through the side shift hydraulic cylinder that sets up on the tool bit regulation conversion mechanism, make the distance that the cutting removed at every turn less, the radian of the arc outline after the cutting is accurate.
In order to achieve the above object, a chain saw cutting machine according to the present application includes a crawler travel mechanism; the supporting mechanism is arranged at the top of the crawler travelling mechanism; the pushing mechanism is arranged at one end of the supporting mechanism, one side of the pushing mechanism is hinged with a first moving frame, and a first moving platform moving along the first moving frame is arranged on the first moving frame; the first moving platform is connected with a peripheral Xiang Xuanzhuai platform, the peripheral rotating platform is provided with a second moving frame, and the second moving frame is rotated through the peripheral rotating platform; the second moving frame is provided with a second moving platform which moves along the second moving frame, and the second moving platform is provided with a tool bit adjusting and converting mechanism; the cutting chain saw is installed on the tool bit adjusting and converting mechanism, and the tool bit adjusting and converting mechanism is used for small-amplitude translation and angle rotation of the cutting chain saw.
Further, the propulsion mechanism comprises a propulsion oil cylinder arranged on the supporting mechanism, a power output end of the propulsion oil cylinder is provided with a movable frame, and one end of the movable frame is hinged to the first movable frame;
the movable frame is positioned at one side of the first movable frame and is provided with a second supporting oil cylinder for supporting the thrust oil cylinder, and the power end of the second supporting oil cylinder is provided with a supporting roller for supporting during cutting.
Further, the first hollow tubes are fixed on two sides of the supporting and fixing plate, the movable frame comprises two second hollow tubes and a third hollow tube which are perpendicular to each other, the second hollow tube is located in the first hollow tube and is connected with the inner wall of the first hollow tube, the pushing oil cylinder is located in the second hollow tube, meanwhile, the cylinder bottom of the pushing oil cylinder is fixed in the first hollow tube of the supporting and fixing plate, and the second supporting oil cylinder is located in the third hollow tube.
Further, the first moving platform comprises a first moving fixed plate, first side plates which are oppositely arranged are respectively arranged at two sides of the first moving fixed plate, and the first moving fixed plate is clamped at two sides of the first moving frame through the first side plates; the first movable fixing plate is provided with a second hydraulic motor, the power output end of the second hydraulic motor is provided with a second gear, and one side of the first movable frame is provided with a first rack meshed with the second gear; the outer surfaces of two side walls of the long side of the first moving frame are provided with channel steel, and the first side plate is provided with a plurality of first guide wheel assemblies and first cam followers; the first cam followers are arranged among the first guide wheel assemblies in a scattered manner; the first guide wheel assembly comprises a first support roller shaft arranged on the first side plate, one end of the first support roller shaft is provided with a first support roller seat, and the first support roller seat is provided with two first guide wheels through a guide wheel rotating shaft; the two first guide wheels are tightly pressed and connected with the bottom of the channel steel, and the first cam follower is connected with the side wall of the channel steel.
Further, the circumferential rotation platform comprises an inner gear ring arranged in the middle of the first movable fixing plate; a first mounting plate is fixed in the middle of the second moving frame, a rotary drum is fixed on one surface of the first mounting plate, a placing groove is formed in the middle of the other surface of the first mounting plate, and the rotary drum and the placing groove are concentrically arranged; the bearing is fixedly sleeved outside the inner gear ring, and the rotary cylinder is rotatably arranged outside the bearing; a third hydraulic motor is arranged at the bottom of the placing groove, and the power output end of the third hydraulic motor is connected with a third gear; and one side of the bottom of the placing groove is provided with a threading hole.
Further, the second movable platform comprises a second movable fixed plate, second side plates which are oppositely arranged are respectively arranged at two sides of the second movable fixed plate, and the second movable fixed plate is clamped at two sides of the second movable frame through the second side plates; a fourth hydraulic motor is arranged on the second movable fixing plate, the power output end of the fourth hydraulic motor is connected with a fourth gear, and a second rack meshed with the fourth gear is arranged on the side of the second movable frame; the second moving frame is of a rectangular structure, channel steel is oppositely arranged on two sides of the long side of the second moving frame, a plurality of second guide wheel assemblies and second cam followers which are movably clamped in the channel steel are arranged on the second side plate, and the second cam followers are arranged among the second guide wheel assemblies in a dispersing mode; the second guide wheel assembly comprises a second support roller shaft arranged on the second side plate, a second support roller seat is arranged at one end of the second support roller shaft, two second guide wheels are arranged on the second support roller seat through a guide wheel rotating shaft, the two second guide wheels are tightly pressed and connected with the bottom of the channel steel, and a second cam follower is connected with the side wall of the channel steel.
Further, tool bit adjustment conversion mechanism is including setting up the side shift pneumatic cylinder on the second removes the fixed plate, is provided with hydraulic turntable on the side shift pneumatic cylinder, is provided with the installation component on the hydraulic turntable, is provided with rotatable reducing gear box on the installation component, and the cutting chain saw is installed on the reducing gear box.
Further, the installation component is including fixing the fixed plate on hydraulic turntable, be fixed with two backup pads that set up relatively on the fixed plate, the reducing gear box is installed in two backup pads through the pivot, and the backup pad lateral wall articulates through the articulated shaft has the upset hydro-cylinder, and the power end setting of upset hydro-cylinder is on the reducing gear box.
Further, third support oil cylinders are arranged in the middle of the short sides of the two sides of the first movable frame and used for supporting the ground and the top of the tunnel; the middle parts of the short sides of the two sides of the second movable frame are respectively provided with a fourth supporting oil cylinder, and two fifth supporting oil cylinders are fixed on the two sides of the side wall of one long side.
Further, a three-dimensional imaging scanner is arranged at the front end of the chain saw machine and is used for scanning the tunnel profile.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a chain saw cutter according to one embodiment of the present application;
FIG. 2 is a schematic view of a chain saw cutter according to another embodiment of the present application;
FIG. 3 is a partial schematic view of FIG. 1 of the present application;
FIG. 4 is a schematic structural view of a moving mechanism according to another embodiment of the present disclosure;
FIG. 5 is an exploded view of the partial structure of FIG. 1;
FIG. 6 is a schematic view of the partial structure of FIG. 5;
FIG. 7 is an exploded view of the partial structure of FIG. 4;
FIG. 8 is a schematic view of a partial structure of the tool bit adjustment and conversion mechanism of the present application;
fig. 9 is a profile view of the cutting process of the cutting machine of the present application.
In the figure: 1. a crawler belt travelling mechanism; 11. a crawler chassis; 2. a support mechanism; 21. a supporting and fixing plate; 211. a first hollow tube; 22. a chassis; 23. balancing weight; 25. a first support cylinder; 3. a propulsion mechanism; 32. a second support cylinder; 33. a moving rack; 331. a second hollow tube; 332. a third hollow tube; 34. supporting rollers; 35. a thrust cylinder; 4. a moving mechanism; 41. a first moving frame; 42. a first mobile platform; 421. a first movable fixing plate; 4211. a supporting fixing ring; 422. a second gear; 423. a first rack; 424. a second hydraulic motor; 425. a first side plate; 426. a first guide wheel assembly; 4261. a first support roller shaft; 4262. a first supporting roller seat; 4263. a first guide wheel; 427. a first cam follower; 43. a circumferential rotation platform; 431. an inner gear ring; 432. a third gear; 434. a third hydraulic motor; 44. a second moving frame; 441. a rotary drum; 442. a first mounting plate; 443. a threading hole; 45. a second mobile platform; 451. a second movable fixing plate; 452. a fourth gear; 453. a second rack; 454. a fourth hydraulic motor; 455. a second guide wheel assembly; 456. a second cam follower; 457. a second side plate; 46. the tool bit adjusts the switching mechanism; 461. a lateral shifting hydraulic cylinder; 462. a hydraulic turntable; 463. a mounting assembly; 464. a reduction gearbox; 465. a turnover oil cylinder; 47. a third support cylinder; 48. a fourth support cylinder; 49. a fifth support cylinder; 5. cutting a chain saw; 6. three-dimensional imaging scanners, 8, horizontal and vertical tangent lines; 9. designing an outer contour; 10. representing a fitted outer contour.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the present application include all alternatives, modifications, and equivalents as may be included within the spirit and scope of the appended claims.
Fig. 1 is a schematic view of a chain saw cutter according to an embodiment of the present application.
Referring to fig. 1, a chain saw cutting machine comprises a crawler traveling mechanism 1, a supporting mechanism 2, a propelling mechanism 3, a moving mechanism 4 and a cutting chain saw 5;
the crawler travelling mechanism 1 is used for driving the whole cutting machine to travel and turn;
the supporting mechanism 2 is arranged on the crawler travelling mechanism 1 and is used for supporting the whole cutting machine;
the propelling mechanism 3 is arranged on the supporting mechanism 2, the moving mechanism 4 is arranged on one side of the propelling mechanism 3, and the moving of the moving mechanism 4 is realized through the pushing action of the propelling mechanism along the supporting mechanism 2;
the cutting chain saw 5 is movably provided on the moving mechanism 4, and the moving mechanism 4 realizes up-down, left-right and rotary cutting of the cutting chain saw 5 by moving up-down, left-right and rotary movement.
In another embodiment of the present invention, the crawler belt running mechanism 1 includes a crawler belt chassis 11, where the crawler belt chassis 11 is in the prior art, and is not described herein, a supporting shaft is installed on the crawler belt chassis 11, the supporting mechanism 2 is rotatably installed on the crawler belt chassis 11 through the supporting shaft, meanwhile, a first gear 26 is installed on the supporting mechanism 2, a transmission gear meshed with the first gear is installed on the supporting shaft, the first gear is connected with a power output end of the first hydraulic motor, rotation of the first gear is achieved through rotation of the first hydraulic motor, rotation around the transmission gear is achieved through meshing action with the first gear in the process of the first gear, and rotation of the whole supporting mechanism 2 is achieved.
Referring to fig. 2, in another embodiment of the present invention, the supporting mechanism 2 includes a supporting and fixing plate 21 mounted on the crawler traveling mechanism 1, a case 22 is mounted on one end of a surface of the supporting and fixing plate 21, the pushing mechanism 3 is disposed on the other end, a counterweight 23 is disposed on the top of the case 22, for increasing the weight of one side of the supporting and fixing plate 21, and preventing the entire cutter from tipping due to excessive weights of the pushing mechanism 3, the moving mechanism 4, and the cutting chain saw 5 during the moving and cutting processes; four first support oil cylinders 25 are uniformly distributed at four corners of the bottom of the support fixing plate 21, so that stable support can be conveniently carried out through the four first support oil cylinders 25 in the working process of the cutting machine.
In another embodiment of the present invention, the propulsion mechanism 3 includes propulsion cylinders 35 disposed at two sides of the supporting and fixing plate 21, a moving frame 33 is fixed at a power output end of the propulsion cylinders 35, one end of the moving frame 33 is hinged on the moving mechanism 4, a second supporting cylinder 32 for supporting the propulsion cylinders is installed at one side of the moving frame 33, a supporting roller 34 is disposed at a power end of the second supporting cylinder 32, the second supporting cylinder 32 extends out to enable the supporting roller 34 to be supported on the ground during cutting, the moving mechanism 4 drives the cutting chain saw 5 to penetrate forward for cutting during cutting through the propulsion cylinders 35, at this time, the crawler travelling mechanism 1 does not need to move, the ground is not stable due to the cutting construction in the tunnel, but the crawler itself is not stable to travel, the situation that the cutting chain saw 5 is easy to shift due to uneven cutting is caused when the crawler travelling mechanism 1 is directly to travel for pushing the cutting chain saw 5 into cutting is caused, the situation that the working efficiency is reduced, the crawler travelling mechanism 1 does not need to move, the cutting chain saw 5 can be stable and the cutting chain saw is prevented from penetrating forward, the working accidents such as shaking, the cutting efficiency are improved; and after the pushing oil cylinder stretches out for a long distance in the pushing process, the whole moving mechanism 4 and the cutting chain saw 5 are directly supported by the moving frame 33, the weight is large, the pushing difficulty caused by the downward pressure action when the pushing oil cylinder pushes the moving frame 33 is easily caused, the pushing oil cylinder stretches to the damage caused by pushing the moving frame 33, the moving frame 33 is supported by the second supporting oil cylinder 32, and the pushing oil cylinder can stretch out for a long distance freely.
Referring to fig. 3, in another embodiment of the present invention, a first hollow tube 211 is fixed to both sides of a support fixing plate 21, a moving frame 33 includes two perpendicular second hollow tubes 331 and a third hollow tube 332, the second hollow tube 331 is positioned in the first hollow tube 211 and is connected with the inner wall of the first hollow tube 211, so that the first hollow tube 211 can support the moving frame 33, a push cylinder 35 is positioned in the second hollow tube 331, while the cylinder bottom of the push cylinder 35 is fixed in the first hollow tube 211 of the support fixing plate 21, and the moving frame 33 is driven to move out or in the first hollow tube 211 by the operation of the push cylinder 35, so that not only does not occupy space but also the support of the moving frame 33 can be realized, the whole moving mechanism 4 and the cutting chain saw 5 are prevented from being supported on one side of the moving frame 33, and the moving frame 33 is deformed due to the large weight; the second support cylinder 32 is located in the third hollow tube 332, and the second support cylinder 32 is protected by the third hollow tube 332.
Referring to fig. 4, in another embodiment of the present invention, the moving mechanism 4 includes a first moving frame 41, the first moving frame 41 is directly mounted at one end of the moving frame 33, a first moving platform 42 moving along the first moving frame 41 is provided on the first moving frame 41, a peripheral Xiang Xuanzhuai platform 43 is connected to the first moving platform 42, the first moving platform 42 is used for driving a circumferential rotating platform 43 to move on the first moving frame 41, a second moving frame 44 is provided on the circumferential rotating platform 43, and rotation of the second moving frame 44 is achieved through the circumferential rotating platform 43, so that the second moving frame 44 can relatively move with the first moving frame 41, and can also relatively rotate; the second moving frame 44 is provided with a second moving platform 45 which moves along the second moving frame 44, the second moving platform 45 is provided with a cutter head adjusting and converting mechanism 46, the cutting chain saw 5 is arranged on the cutter head adjusting and converting mechanism 46, and the position side shifting and the cutter head rotating and direction adjusting of the cutter head in the cutting chain saw 5 are realized through the movement of the cutter head adjusting and converting mechanism 46 on the second moving platform 45; by the relative movement between the second moving frame 44 and the first moving frame 41 and the relative movement between the second moving platform 45 and the second moving frame 44, the large-range transverse and vertical movement of the cutting chain saw 45 is realized, and the large-range transverse and vertical cutting is realized; and the rotary cutting of the entire cutting chain saw is achieved by the rotating action of the circumferential rotation platform 43.
In one embodiment of the present invention, the first moving frame 41 has a rectangular structure, so that the moving range of the first moving platform 42 can be increased.
Referring to fig. 5, in another embodiment of the present invention, the first moving platform 42 includes a first moving fixed plate 421, opposite first side plates 425 are respectively installed at both sides of the first moving fixed plate 421, the first moving fixed plate 421 is clamped at both sides of the first moving frame 41 by the first side plates 425, a second hydraulic motor 424 is installed on the first moving fixed plate 421, a second gear 422 is installed at a power output end of the second hydraulic motor 424, meanwhile, a first rack 423 engaged with the second gear 422 is installed at one side of the first moving frame 41, the second gear 422 is rotated by providing power by the second hydraulic motor, and the second gear 422 drives the first moving fixed plate 421 to move along the first moving frame 41 through the engagement with the first rack 423 during the rotation of the second gear 422.
In another embodiment of the present invention, the outer surfaces of the two long side walls of the first moving frame 41 are provided with channel steel, the first side plate 425 is provided with a plurality of first guide wheel assemblies 426 and first cam followers 427, the first guide wheel assemblies 426 are movably clamped in the channel steel, the first cam followers 427 are rotatably supported in the channel steel, the first guide wheel assemblies 426 move along the channel steel during the moving process of the first moving fixed plate 421, and the plurality of first guide wheel assemblies 426 and the clamping clamps are clamped with the channel steel, so that the moving process of the first moving fixed plate 421 can be stably and non-inclined along the channel steel, the moving is convenient, and meanwhile friction in the moving process is reduced through the supporting action of the first cam followers 427, and the moving is convenient.
Referring to fig. 6, in another embodiment of the present invention, a plurality of first cam followers 427 are disposed between a plurality of first guide wheel assemblies 426 in a dispersed manner, and the first guide wheel assemblies 426 include first support roller shafts 4261 mounted on first side plates 425, first support roller seats 4262 are mounted at one ends of the first support roller shafts 4261, two first guide wheels 4263 are mounted on the first support roller seats 4262 through guide wheel shafts, stability during movement of the first guide wheel assemblies 426 is improved by providing two first guide wheels 4263 in each first guide wheel assembly 426, and the two first guide wheels 4263 are in compression-clamping connection with the first guide wheels 4263 at both sides of the first movement fixing plates 421, and the first cam followers 427 are in compression-connection with the channel side walls, so that not only can movement of the first movement fixing plates 421 be stabilized and not inclined along the channel, but also movement convenience is reduced by supporting friction during movement of the first cam followers 427.
Referring to fig. 7, in another embodiment of the present invention, the circumferential rotation platform 43 includes an inner gear ring 431 provided at the middle of the first moving fixing plate 421, while a rotation cylinder 441 is provided at the middle of the second moving frame 44, the rotation cylinder 441 is rotatably provided at the middle of the first moving fixing plate 421 and the inner gear ring 431 is positioned in the rotation cylinder 441, a third gear 432 engaged with the inner gear ring 431 is rotatably provided on the second moving frame 44, the third gear 432 is connected to a power output end of a third hydraulic motor 434, the third hydraulic motor is provided on the second moving frame 44, the third gear 432 is rotated by the third hydraulic motor, and the third gear 432 is rotated around the inner gear ring 431 by the engagement with the inner gear ring 431 during the rotation of the third gear 432, thereby realizing the rotation of the second moving frame 44, the rotation cylinder 441 is rotated on the first moving fixing plate 421 during the rotation of the second moving frame 44;
in another embodiment of the present invention, a supporting fixing ring 4211 is fixed at the middle of the first moving fixing plate 421, an inner gear ring 431 is fixed on the surface of the supporting fixing ring 4211, and a bearing is sleeved and fixed on the outer portion of the inner gear ring 431, and a rotating cylinder 441 is rotatably installed on the outer portion of the bearing.
In another embodiment of the present invention, the first mounting plate 442 is fixed to the middle of the second moving frame 44, the rotary cylinder 441 is fixed to the bottom of the first mounting plate 442, the middle of the first mounting plate 442 is provided with a placing slot, one side of the bottom of the placing slot is provided with a threading hole 443, the third hydraulic motor 434 is installed at the bottom of the placing slot, the movement of the second moving platform on the second moving frame 44 is not hindered, and the threading is facilitated by providing the threading hole 443.
In another embodiment of the present invention, the second moving platform 45 includes a second moving fixed plate 451, two opposite second side plates 457 are respectively installed at two sides of the second moving fixed plate 451, the second moving fixed plate 451 is clamped at two sides of the second moving frame 44 through the second side plates 457, a fourth hydraulic motor 454 is installed on the second moving fixed plate 451, a power output end of the fourth hydraulic motor 454 is connected with the fourth gear 452, and meanwhile, a second rack 453 meshed with the fourth gear 452 is installed at an edge side of the second moving frame 44, and the second moving fixed plate 451 is driven to move along the second rack 453 on the second moving frame 44 through rotation of the fourth gear 452.
In another embodiment of the present invention, the second moving frame 44 has a rectangular structure, so that the moving range of the second moving platform 45 can be increased, the two sides of the long side of the second moving frame 44 are oppositely provided with channel steel, the second side plate 457 is provided with a plurality of second guide wheel assemblies 455 and second cam followers 456 which are movably clamped in the channel steel, the second guide wheel assemblies 455 are movably clamped in the channel steel and the second cam followers 456 are rotatably supported in the channel steel, the second guide wheel assemblies 455 move along the channel steel during the moving process of the second moving fixed plate 451, and through the arrangement of the plurality of second guide wheel assemblies 455 and the clamping and clamping connection with the channel steel, the moving process of the second moving fixed plate 451 can be stably not inclined along the channel steel, and meanwhile, the friction during the moving process is reduced through the supporting effect of the second cam followers 456, so that the moving is convenient.
In another embodiment of the present invention, a plurality of second cam followers 456 are disposed between a plurality of second guide wheel assemblies 455 in a dispersed manner, and the second guide wheel assemblies 455 include second support roller shafts mounted on the second side plates 457, one ends of the second support roller shafts being mounted with second support roller seats, two second guide wheels being mounted on the second support roller seats through guide wheel shafts, and stability during movement of the second guide wheel assemblies 455 is improved by providing two second guide wheels in each second guide wheel assembly 455, while the two second guide wheels are in compression contact with the bottom of the channel steel, and the second cam followers 456 are in contact with the side walls of the channel steel.
In one embodiment of the present invention, the tool bit adjusting and converting mechanism 46 includes a side shift hydraulic cylinder 461 disposed on a second movable fixing plate 451, a hydraulic turntable 462 is disposed on the side shift hydraulic cylinder 461, a mounting assembly 463 is disposed on the hydraulic turntable 462, a rotatable reduction gearbox 464 is disposed on the mounting assembly 463, the cutting chain saw 5 is mounted on the reduction gearbox 464, the work of the cutting chain saw 5 is achieved through the driving of a hydraulic motor in the reduction gearbox 464, the driving of the cutting chain saw 5 by the hydraulic motor is a prior art, which is not an innovation point of the present application, and is not described in detail herein, the cutting chain saw is driven to rotate 90 degrees by the hydraulic turntable when the arc top of the tunnel is cut, so that the cutting chain saw is rotated from vertical to horizontal, then after the second movable frame rotates by an angle, and since the cutting chain saw 5 extends into the cutting in the long side direction, the hydraulic turntable 462 is driven by the side shift hydraulic turntable 461, each time, a certain moving distance is small, and the radian after cutting is precise.
In another embodiment of the present invention, two fixing blocks are vertically fixed to the surface of the second moving fixing plate 451, the bottom of the side-shifting hydraulic cylinder 461 is fixed to the fixing blocks, and the output direction of the side-shifting hydraulic cylinder 461 is perpendicular to the moving direction of the second moving fixing plate 451 on the second moving frame 44.
More specifically, in the cutting process, when the tunnel top is cut, because the tunnel top is arc-shaped, the second movable frame 44 rotates under the rotation action of the circumferential rotation platform 43 to drive the whole tool bit adjusting and converting mechanism 46 to rotate in an arc shape, and the side-moving hydraulic cylinder 461 is arranged on the tool bit adjusting and converting mechanism 46, so that the second movable frame 44 stops after rotating for a certain angle each time in the cutting process, and then the side-moving hydraulic cylinder 461 in the tool bit adjusting and converting mechanism 46 moves to drive the small-amplitude translational cutting of the cutting chain saw 5, so that the cutting distance of each corner is shorter, and the radian of the cutting is accurate.
Referring to fig. 8, in one embodiment of the present invention, a turnover cylinder 465 is provided on a mounting assembly 463, a power end of the turnover cylinder 465 is provided on a reduction gearbox 464, the reduction gearbox 464 rotates on the mounting assembly 463 through the telescopic action of the turnover cylinder 465, and meanwhile, 90-degree turnover of the cutting chain saw 5 is achieved, so that the cutting chain saw 5 is horizontally and vertically switched, and further, vertical cutting and horizontal cutting are switched; the cutting chain saw 5 is turned 90 degrees through the overturning of the overturning oil cylinder 465, the long side of the cutting chain saw 5 is in the vertical direction and stretches into the position of the discharged stone, then the cutting chain saw 5 is rotated 90 degrees through the rotary hydraulic turntable, and then the cutting chain saw 5 is cut on the back of the stone through the up-and-down movement of the second moving frame, so that the separation of the stone is realized.
In one embodiment of the present invention, the mounting assembly 463 includes a fixed plate fixed to the hydraulic turntable 462, on which two oppositely disposed support plates are fixed, and the reduction gearbox 464 is mounted on the two support plates through a rotation shaft such that the reduction gearbox 464 can rotate on the two support plates around the rotation shaft while the tilting cylinder 465 is hinged to the support plates through a hinge shaft.
In one embodiment of the present invention, the third support cylinders 47 are provided at both sides of both ends of the first moving frame 41 for being supported on the ground and the top of the tunnel by the third support cylinders 47 at both ends at the time of cutting, and in detail, the third support cylinders 47 are installed at the middle of the short sides of the first moving frame 41, so that the support direction is greater and the tunnel with a large height can be adapted.
In another embodiment of the present invention, the middle parts of the short sides of the two sides of the second moving frame 44 are respectively provided with the fourth supporting cylinder 48, two fifth supporting cylinders 49 are fixed on the two sides of the side wall of one long side, and the stability of the chain saw is improved, accidents such as shaking and sawing are avoided, and the cutting efficiency is improved through the supporting actions of the third supporting cylinder 47, the fourth supporting cylinder 48 and the fifth supporting cylinder 49 in the tunnel.
In one embodiment of the present invention, the front end of the chain saw machine is provided with a three-dimensional imaging scanner 6, which can perform tunnel profile scanning to perform functions of equipment positioning, wireless operation, path planning, etc., more specifically, the three-dimensional imaging scanner is disposed on the second movable fixed plate 451.
Referring to fig. 9, wherein 8 represents horizontal and vertical tangents, 9 represents a designed outer contour, 10 represents a fitted outer contour, the specific operation of the cutter is as follows:
(1) The chain saw cutting machine works through the crawler travelling mechanism 1 and the propulsion oil cylinder 3 to drive the cutting chain saw 5 to move to a proper position away from the tunnel face;
(2) The overturning oil cylinder 465 works to enable the cutting chain saw 5 to be overturned to be placed at a proper position, then the chain saw cutter head is placed at a fitting arc cutting station to cut the outer contour of a tunnel, the outer contour of the tunnel is slightly larger than the design contour of the tunnel, then the cutting chain saw 5 cutter head penetrates into the section of the tunnel through the action of the pushing oil cylinder 3, the cutting chain saw is adjusted to move and adjust the angle through the action of the side shifting oil cylinder and the cooperation of the hydraulic turntable to perform fitting arc cutting, after a certain distance is cut, the second moving frame moves and the second moving frame rotates under the rotating action of the circumferential rotating platform to drive the whole cutter head adjusting and converting mechanism to rotate a certain angle in an arc shape, and then the side shifting oil cylinder is moved and the hydraulic turntable is matched to perform small-amplitude cutting until the outer contour cutting is completed;
(3) the tool bit adjusting and converting mechanism acts, the hydraulic turntable rotates the tool bit of the cutting chain saw to a flat cutting station, and grid type cutting is carried out on the tunnel face in the outer contour of the tunnel;
(4) taking out the dregs completely by using a splitter, a rope saw, a forklift and other equipment and discharging the dregs out of the tunnel; in the discharging process, a row of stones in the vertical direction can be separated and then taken out by using the existing hydraulic fracturing and rock breaking technology, then the cutting chain saw is turned over by 90 degrees through the turning cylinder, the long side of the cutting chain saw is in the vertical direction and stretches into the position of the discharged stones, then the hydraulic turntable is rotated by 90 degrees through rotation, and then the cutting chain saw is cut on the back of the stones through the up-and-down movement of the second moving frame, so that the separation of the stones is realized.
(5) Lining the excavated tunnel to complete the construction of a ring of tunnel.
It should be noted that in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (7)
1. A chainsaw cutter, comprising:
a crawler belt travelling mechanism;
the supporting mechanism is arranged at the top of the crawler travelling mechanism;
the pushing mechanism is arranged at one end of the supporting mechanism, one side of the pushing mechanism is hinged with a first moving frame, and a first moving platform moving along the first moving frame is arranged on the first moving frame; the first moving platform is connected with a peripheral Xiang Xuanzhuai platform, the peripheral rotating platform is provided with a second moving frame, and the second moving frame is rotated through the peripheral rotating platform; the second moving frame is provided with a second moving platform which moves along the second moving frame, and the second moving platform is provided with a tool bit adjusting and converting mechanism;
the cutting chain saw is mounted on the tool bit adjusting and converting mechanism, and the tool bit adjusting and converting mechanism is used for small-amplitude translation and angle rotation of the cutting chain saw;
the second movable platform comprises a second movable fixed plate, second side plates which are oppositely arranged are respectively arranged at two sides of the second movable fixed plate, and the second movable fixed plate is clamped at two sides of the second movable frame through the second side plates;
a fourth hydraulic motor is arranged on the second movable fixing plate, the power output end of the fourth hydraulic motor is connected with a fourth gear, and a second rack meshed with the fourth gear is arranged on the side of the second movable frame;
the second movable frame is of a rectangular structure, channel steel is oppositely arranged on two sides of the long side of the second movable frame, a plurality of second guide wheel assemblies and second cam followers which are movably clamped in the channel steel are arranged on the second side plate,
the plurality of second cam followers are arranged among the plurality of second guide wheel assemblies in a scattered manner;
the second guide wheel assembly comprises a second support roller shaft arranged on the second side plate, one end of the second support roller shaft is provided with a second support roller seat, the second support roller seat is provided with two second guide wheels through a guide wheel rotating shaft, the two second guide wheels are in compression connection with the bottom of the channel steel, and the second cam follower is connected with the side wall of the channel steel;
the tool bit adjusting and converting mechanism comprises a side-shifting hydraulic cylinder arranged on the second movable fixing plate, a hydraulic turntable is arranged on the side-shifting hydraulic cylinder, a mounting assembly is arranged on the hydraulic turntable, a rotatable reduction gearbox is arranged on the mounting assembly, and a cutting chain saw is arranged on the reduction gearbox;
the propelling mechanism comprises a propelling oil cylinder arranged on the supporting mechanism, a power output end of the propelling oil cylinder is provided with a movable frame, and one end of the movable frame is hinged to the first movable frame;
the movable frame is positioned at one side of the first movable frame and is provided with a second supporting oil cylinder for supporting the thrust oil cylinder, and the power end of the second supporting oil cylinder is provided with a supporting roller for supporting during cutting.
2. The chain saw cutting machine as set forth in claim 1, wherein the supporting mechanism comprises a supporting fixing plate mounted on the crawler traveling mechanism, wherein the first hollow tube is fixed to both sides of the supporting fixing plate, the moving frame comprises two second hollow tubes and a third hollow tube which are perpendicular to each other, the second hollow tube is located in the first hollow tube and is connected with an inner wall of the first hollow tube, the pushing cylinder is located in the second hollow tube, a cylinder bottom of the pushing cylinder is fixed to the first hollow tube of the supporting fixing plate, and the second supporting cylinder is located in the third hollow tube.
3. A chain saw cutter as set forth in claim 1, wherein the first movable platform comprises a first movable fixed plate, opposite first side plates are respectively arranged on two sides of the first movable fixed plate, and the first movable fixed plate is clamped on two sides of the first movable frame through the first side plates;
the first movable fixing plate is provided with a second hydraulic motor, the power output end of the second hydraulic motor is provided with a second gear, and one side of the first movable frame is provided with a first rack meshed with the second gear;
the outer surfaces of two side walls of the long side of the first moving frame are provided with channel steel, and the first side plate is provided with a plurality of first guide wheel assemblies and first cam followers;
the first cam followers are arranged among the first guide wheel assemblies in a scattered manner;
the first guide wheel assembly comprises a first support roller shaft arranged on the first side plate, one end of the first support roller shaft is provided with a first support roller seat, and the first support roller seat is provided with two first guide wheels through a guide wheel rotating shaft;
the two first guide wheels are tightly pressed and connected with the bottom of the channel steel, and the first cam follower is connected with the side wall of the channel steel.
4. A chain saw cutter as set forth in claim 3, wherein the circumferential rotation platform comprises an inner gear ring provided in a middle portion of the first moving fixing plate;
a first mounting plate is fixed in the middle of the second moving frame, a rotary drum is fixed on one surface of the first mounting plate, a placing groove is formed in the middle of the other surface of the first mounting plate, and the rotary drum and the placing groove are concentrically arranged;
the bearing is fixedly sleeved outside the inner gear ring, and the rotary cylinder is rotatably arranged outside the bearing;
a third hydraulic motor is arranged at the bottom of the placing groove, and the power output end of the third hydraulic motor is connected with a third gear;
and one side of the bottom of the placing groove is provided with a threading hole.
5. A chain saw cutting machine as set forth in claim 1, wherein the mounting assembly comprises a fixed plate fixed on the hydraulic turntable, two opposite supporting plates are fixed on the fixed plate, the reduction gearbox is mounted on the two supporting plates through a rotating shaft, a turnover oil cylinder is hinged to the side wall of the supporting plate through a hinge shaft, and a power end of the turnover oil cylinder is arranged on the reduction gearbox.
6. The chain saw cutting machine as set forth in claim 1, wherein third supporting cylinders are provided at the middle parts of the short sides of both sides of the first moving frame for supporting the ground and the tunnel top;
the middle parts of the short sides of the two sides of the second movable frame are respectively provided with a fourth supporting oil cylinder, and two fifth supporting oil cylinders are fixed on the two sides of the side wall of one long side.
7. The chainsaw cutter of claim 1, wherein the chainsaw cutter front end is mounted with a three-dimensional imaging scanner for tunnel profile scanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110666634.0A CN113338976B (en) | 2021-06-16 | 2021-06-16 | Chain saw cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110666634.0A CN113338976B (en) | 2021-06-16 | 2021-06-16 | Chain saw cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113338976A CN113338976A (en) | 2021-09-03 |
| CN113338976B true CN113338976B (en) | 2024-02-06 |
Family
ID=77476076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110666634.0A Active CN113338976B (en) | 2021-06-16 | 2021-06-16 | Chain saw cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113338976B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673099A (en) * | 2022-03-31 | 2022-06-28 | 于金想 | Cutting device for maintaining and repairing bridge surface and use method thereof |
| CN116038823B (en) * | 2023-02-22 | 2023-08-18 | 山东金奇典家具有限公司 | Adjustable cutting machine for wooden plates |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2677616Y (en) * | 2003-11-15 | 2005-02-09 | 王发江 | Excavation machine |
| CN102182485A (en) * | 2011-03-17 | 2011-09-14 | 兖州煤业股份有限公司 | Vehicle-mounted advance support device of cantilever type excavator |
| CN110685682A (en) * | 2019-10-29 | 2020-01-14 | 神华神东煤炭集团有限责任公司 | Self-moving cutting equipment, control method and top-cutting pressure-relief operation method |
| CN111236959A (en) * | 2020-03-20 | 2020-06-05 | 中铁工程装备集团有限公司 | Chain saw mesh cutting tunneling machine and construction method thereof |
| CN112145192A (en) * | 2020-08-17 | 2020-12-29 | 中铁工程服务有限公司 | Soft rock tunnel boring machine and construction method thereof |
| CN212337286U (en) * | 2020-07-07 | 2021-01-12 | 上海中筑实业有限公司 | Mine chain arm saw for joint cutting at top of underground roadway of mine |
| CN112502702A (en) * | 2020-12-16 | 2021-03-16 | 重庆勤牛工程机械有限责任公司 | Cutting device and mining system |
| CN112523755A (en) * | 2020-12-16 | 2021-03-19 | 重庆勤牛工程机械有限责任公司 | Movable flat mining type cutting device |
| CN213392140U (en) * | 2020-09-24 | 2021-06-08 | 上海中筑实业有限公司 | Mining chain arm saw with support oil cylinder on track |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7845098B1 (en) * | 2009-05-22 | 2010-12-07 | Loram Maintenance Of Way, Inc. | Rotary undercutter for rail line maintenance |
| CN206477846U (en) * | 2016-11-24 | 2017-09-08 | 衡阳智华科技有限公司 | Marble exploitation chain arm saw |
-
2021
- 2021-06-16 CN CN202110666634.0A patent/CN113338976B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2677616Y (en) * | 2003-11-15 | 2005-02-09 | 王发江 | Excavation machine |
| CN102182485A (en) * | 2011-03-17 | 2011-09-14 | 兖州煤业股份有限公司 | Vehicle-mounted advance support device of cantilever type excavator |
| CN110685682A (en) * | 2019-10-29 | 2020-01-14 | 神华神东煤炭集团有限责任公司 | Self-moving cutting equipment, control method and top-cutting pressure-relief operation method |
| CN111236959A (en) * | 2020-03-20 | 2020-06-05 | 中铁工程装备集团有限公司 | Chain saw mesh cutting tunneling machine and construction method thereof |
| CN212337286U (en) * | 2020-07-07 | 2021-01-12 | 上海中筑实业有限公司 | Mine chain arm saw for joint cutting at top of underground roadway of mine |
| CN112145192A (en) * | 2020-08-17 | 2020-12-29 | 中铁工程服务有限公司 | Soft rock tunnel boring machine and construction method thereof |
| CN213392140U (en) * | 2020-09-24 | 2021-06-08 | 上海中筑实业有限公司 | Mining chain arm saw with support oil cylinder on track |
| CN112502702A (en) * | 2020-12-16 | 2021-03-16 | 重庆勤牛工程机械有限责任公司 | Cutting device and mining system |
| CN112523755A (en) * | 2020-12-16 | 2021-03-19 | 重庆勤牛工程机械有限责任公司 | Movable flat mining type cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113338976A (en) | 2021-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113338976B (en) | Chain saw cutting machine | |
| US4056284A (en) | Machines for use in mining or tunnelling work | |
| AU2009214806B2 (en) | Heading work machine having drill head made of disk tools | |
| CN113246314B (en) | Chain saw cutting machine and cutting method and cutting device thereof | |
| CA1139324A (en) | Articulated boom-dipper-bucket assembly for a tunnel boring machine | |
| US3203737A (en) | Rock driling machine | |
| CN113250608B (en) | Underground deep and narrow groove continuous sawing system convenient to transport | |
| CN113431595B (en) | Construction method of non-blasting chain saw cutting machine | |
| CN108071393A (en) | Mining method is broken in the rock stratum of a kind of ditching device and application ditching device | |
| CN113250711B (en) | Chain saw cutting machine and construction method and construction device thereof | |
| CN211891454U (en) | Double-knife cutting machine | |
| CN113431594B (en) | Movement control device of cutting chain saw with omnidirectional movement capability | |
| CN113338977B (en) | Folding chain saw cutting machine | |
| CN116511856A (en) | Pin shaft installation pushing device | |
| CN216586541U (en) | Device for quickly cutting pile head through earth model method CFG pile cap | |
| CN207813609U (en) | A kind of ditching device | |
| CN211549687U (en) | Full-hydraulic anchor rod drill carriage | |
| CN113863304A (en) | Device for quickly cutting pile head of CFG pile cap by earth model method | |
| CN210530823U (en) | Auxiliary walking device of reversed loader | |
| CN215860186U (en) | Diversified regulation formula cutting chain saw | |
| CN210068159U (en) | Rock-socketed drilling machine | |
| WO2023273927A1 (en) | Chain saw cutting machine, cutting construction method therefor, and cutting construction apparatus thereof | |
| AU2011326347B2 (en) | Tunnelling machine | |
| FR2504829A1 (en) | DEVICE FOR EXCAVATING RIGOLES FROM BLAST FURNACES AND THE LIKE | |
| CN213571474U (en) | Road surface joint-cutting device for highway engineering |
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 |