CN108952744B - Cantilever heading machine carrying hob rock breaking and construction method thereof - Google Patents
Cantilever heading machine carrying hob rock breaking and construction method thereof Download PDFInfo
- Publication number
- CN108952744B CN108952744B CN201810935975.1A CN201810935975A CN108952744B CN 108952744 B CN108952744 B CN 108952744B CN 201810935975 A CN201810935975 A CN 201810935975A CN 108952744 B CN108952744 B CN 108952744B
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- Prior art keywords
- cantilever
- cutter
- hob
- body mechanism
- rock
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- 239000011435 rock Substances 0.000 title claims abstract description 59
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 7
- 230000005641 tunneling Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
-
- 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
- E21D9/1086—Drives or transmissions specially adapted therefor
-
- 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)
- Earth Drilling (AREA)
Abstract
The invention discloses a cantilever tunneling machine carrying a hob for breaking rock and a construction method thereof, which solve the problem that the existing tunneling machine is difficult to excavate a short-distance hard rock or special-shaped tunnel. The invention installs counter-force supporting mechanism and travelling mechanism in the inferior part of the body mechanism, there are slag discharging systems in the body mechanism, slag discharging system extends out of the body mechanism back, the body mechanism front has rotary tables, there are hydraulic rotary cylinders to drive rotary tables to rotate in the body mechanism, the front of the rotary tables has pitching cylinders, there are at least one cantilever on the rotary table to articulate, the middle part of the cantilever articulates with pitching cylinder, the cantilever front has rotating shafts, there are rotating motors to drive rotating shafts to rotate in the cantilever, the cantilever is connected with cutter head through the rotating shaft, there are hobbing cutters on the cutter head. According to the invention, the plurality of cantilevers are additionally arranged on the same rotary table, and the hob is additionally arranged on the cutterhead, so that the plurality of cutterheads can excavate simultaneously, the excavation efficiency is improved, and the method is suitable for excavating short-distance tunnels, special-shaped sections and hard rock tunnels.
Description
Technical Field
The invention relates to the technical field of a cantilever of a heading machine, in particular to a cantilever heading machine carrying a hob for breaking rock and a construction method thereof.
Background
Compared with a full-section hard rock tunnel boring machine, the cantilever tunneling machine has lower cost, and in tunnel construction, only the material transporting vehicle is required to transport out the excavated slag soil, so that the investment of equipment and the potential safety hazards are greatly reduced. The cantilever heading machine used in tunnel construction is mostly used for all-rock tunnels and half-coal tunnels with lower hardness at present. There are fewer applications for hard rock tunnels. It is desirable to develop a boom cutter that can be used for excavation of short-distance, hard rock, profiled tunnels.
Disclosure of Invention
The invention provides a cantilever heading machine carrying a hob to break rock and a construction method thereof, and aims to solve the problem that the existing heading machine in the background art is difficult to excavate short-distance hard rock and special-shaped tunnels.
The technical scheme of the invention is as follows: the cantilever tunneling machine for carrying the hob to break the rock comprises a main body mechanism, wherein a rotary device is arranged at the front part of the main body mechanism, at least one cantilever is movably arranged on the rotary device, the front part of the cantilever is rotationally connected with a cutter head, and the hob is arranged on the cutter head.
The lower part of the main body mechanism is provided with a counter-force supporting mechanism and a traveling mechanism, a slag discharging system is arranged in the main body mechanism, and the slag discharging system extends out of the rear part of the main body mechanism.
The rotary device comprises a rotary table, the rotary table is movably arranged at the front part of the main body mechanism, a hydraulic rotary oil cylinder for driving the rotary table to rotate is arranged in the main body mechanism, a pitching oil cylinder is arranged at the front part of the rotary table, and the cantilever is hinged on the rotary table.
The rotary table is provided with an ear seat, and the rear part of the cantilever is hinged on the ear seat.
The front part of the cantilever is provided with a rotating shaft, the inside of the cantilever is provided with a rotating motor for driving the rotating shaft to rotate, and the cantilever is rotationally connected with the cutterhead through the rotating shaft.
The included angles between the rear cutter face of the hob and the front end face of the cutterhead are acute angles.
The middle part of the cutter disc is provided with a central cutter groove, and the cutter discs on two sides of the central cutter groove are provided with at least one hob.
The middle part of blade disc is equipped with central sword groove, is equipped with at least one hobbing cutter groove on the blade disc of central sword groove both sides, and the fixed hobbing cutter that is equipped with in the hobbing cutter groove.
The construction method of the cantilever heading machine carrying the hob rock breaking comprises the following steps: s1: starting the traveling mechanism to drive the main body mechanism to reach a construction site, and fixing the main body mechanism against the ground by the counterforce support frame to fix a rock stratum cutting point;
S2: the driving oil cylinder in the main body mechanism drives the rotary table to rotate through gear transmission, the rotary table drives the cantilever to rotate, the pitching oil cylinder drives the cantilever to move up and down, and the position of the cutter disc is adjusted, so that a central cutter and a hob on the cutter disc reach a cutting point on the surface of a rock stratum;
s3: the driving oil cylinder in the main body mechanism drives the rotary table to rotate through gear transmission, the rotary table drives the corresponding cantilever and the cutterhead to horizontally rotate at the same time, and the pitching oil cylinder drives the cantilever and drives the cutterhead to vertically move, so that the cutterhead can randomly move in the same rock surface layer to obtain a larger rock breaking range;
s4: the main body mechanism drives a rotating motor in the cantilever to rotate, a rotating shaft connected with an output shaft of the rotating motor drives a cutter head to rotate, and the cutter head drives a central cutter and a hob to rotate; the saw teeth of the hob are obliquely cut into the rock under pressure, the cutter head of the center cutter is cut into the rock at the front after being subjected to pressure, and the rock on the excavated surface is cracked and broken down under the rolling of the hob and the center cutter;
S5: the broken rock slag is conveyed to the rear part of the main body mechanism through a slag discharging system, and when the rock surface layer is broken, the main body mechanism is driven to continuously advance by the travelling mechanism;
s6: and repeating the steps S1 to S5 until the rock breaking engineering is finished.
According to the invention, a mode of adding a plurality of cantilevers on the same rotary table and adding the hob on the cutterhead is adopted, so that a plurality of cutterheads can excavate simultaneously, the excavation efficiency is improved, and the method is suitable for excavating short-distance tunnels; the turntable drives the cantilever to swing left and right on a horizontal plane, and the pitching oil cylinder drives the cantilever to move up and down on a vertical plane, so that the turntable can be used for excavating a special-shaped section; the cutter head adopts the hobbing cutter to break the rock during the excavation, and is applicable to the excavation of hard rock tunnel.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a main view angle structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic side view of a cutterhead according to the present invention;
Fig. 4 is a schematic diagram of the front structure of the cutterhead of the present invention.
In the figure, 1, a main body mechanism, 101, an operation room, 2, a counter force supporting mechanism, 3, a slag discharging device, 4, a travelling mechanism, 5, a rotary table, 501, a pitching oil cylinder, 6, a cantilever, 7, a cutter head, 8, a hob, 801, a hob groove, 9, a center cutter, 901 and a center cutter groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, example 1: the utility model provides a carry on cantilever development machine of hobbing cutter broken rock, including main body mechanism 1, counter-force supporting mechanism 2 and running gear 4 are installed to main body mechanism 1 lower part, main body mechanism 1 is inside to be equipped with slag discharging system 3, slag discharging system 3 extends main body mechanism 1 rear portion, main body mechanism 1 front portion is equipped with revolving platform 5, main body mechanism 1 is inside to be equipped with the rotatory hydraulic slewing cylinder of drive revolving platform 5, revolving platform 5's front portion is equipped with every single move hydro-cylinder 501, articulated on revolving platform 5 has a cantilever 6, cantilever 6's middle part is articulated with every single move hydro-cylinder 501, cantilever 6 front portion is equipped with the pivot, cantilever 6's inside is equipped with the pivoted rotating electrical machines of drive pivot, cantilever 6 rotates with blade disc 7 through the pivot and is connected, be equipped with hobbing cutter 8 on the blade disc 7.
The using steps are as follows: s1: starting the traveling mechanism 4 to drive the main body mechanism 1 to reach a construction site, and fixing the main body mechanism 1 against the ground by the counterforce support frame 2 to fix a rock stratum cutting point;
S2: the driving oil cylinder in the main body mechanism 1 drives the rotary table 5 to rotate through gear transmission, the rotary table 5 drives the cantilever 6 to rotate, the pitching oil cylinder 503 drives the cantilever 6 to move up and down, and the position of the cutter disc 7 is adjusted, so that the central cutter 9 and the hob 8 on the cutter disc 7 reach the cutting point on the surface of the rock stratum;
S3: the driving oil cylinder in the main body mechanism 1 drives the rotary table 5 to rotate through gear transmission, the rotary table 5 drives the corresponding cantilever 6 and the cutterhead 7 to horizontally rotate at the same time, and the pitching oil cylinder 503 drives the cantilever 6 to drive the cutterhead 7 to vertically move, so that the cutterhead 7 can randomly move in the same rock surface layer to obtain a larger rock breaking range;
s4: the main body mechanism 1 drives a rotating motor in the cantilever 6 to rotate, a rotating shaft connected with an output shaft of the rotating motor drives the cutter disc 7 to rotate, and the cutter disc 7 drives the central cutter 9 and the hob 8 to rotate; the saw teeth of the hob 8 are obliquely cut into the rock under pressure, the cutter head of the center cutter 9 is cut into the rock at the front side after being subjected to pressure, and the rock on the excavated surface is cracked and broken down under the rolling of the hob 8 and the center cutter 9;
S5: the broken rock slag is conveyed to the rear part of the main body mechanism 1 through the slag discharging system 3, and when the rock surface layer is broken, the traveling mechanism 4 drives the main body mechanism 1 to continue to advance;
s6: and repeating the steps S1 to S5 until the rock breaking engineering is finished.
Example 2: the utility model provides a carry on cantilever development machine of hobbing cutter broken rock, including main body mechanism 1, counter-force supporting mechanism 2 and running gear 4 are installed to main body mechanism 1 lower part, main body mechanism 1 is inside to be equipped with slag discharging system 3, slag discharging system 3 extends main body mechanism 1 rear portion, main body mechanism 1 front portion is equipped with revolving platform 5, main body mechanism 1 is inside to be equipped with the rotatory hydraulic slewing cylinder of drive revolving platform 5, revolving platform 5's front portion is equipped with every single move hydro-cylinder 501, bilateral symmetry articulates there are two cantilevers 6 on the revolving platform 5, use cantilever 6 as central bilateral symmetry to be equipped with two every single move hydro-cylinders 501 on the revolving platform 5, two every single move hydro-cylinders 501 are articulated with two sides in the middle part of cantilever 6 respectively. The cantilever 6 is made to move up and down to be more stable, the bearing capacity of the cantilever 6 is increased, and other structures and using modes are the same as those of the embodiment 1.
Example 3: a cantilever heading machine for carrying out hob rock breaking, wherein a central cutter groove 901 is transversely formed in the middle of a cutter disc 7 shown in fig. 3 and 4, six central cutters 9 are fixedly arranged in the central cutter groove 901 through bolts, four hob 8 are arranged on the cutter disc 7 on two sides of the central cutter groove 901, and the hob 8 is fixedly arranged on the cutter disc 7 through bolts; the included angle between the rear cutter surface of each hob 8 and the front end surface of the cutter head 7 is an acute angle. When the cutter head is in operation, a central cutter 9 and a hob 8 on a cutter head 7 are simultaneously contacted with the surface of rock, a main body mechanism 1 drives a rotating motor in a cantilever 6 to rotate, a rotating shaft connected with an output shaft of the rotating motor drives the cutter head 7 to rotate, the cutter head 7 drives the central cutter and the hob 8 to rotate, the cutter head of the central cutter 9 is pressed to cut into the rock in front, sawteeth of the hob 8 which are obliquely arranged are pressed to cut into the rock on an excavation surface in an oblique manner, and the rock on the excavation surface is cracked in a shearing way under the rolling of the hob 8 and the central cutter 9 to collapse; other structures and use modes are the same as those of the embodiment 1.
Example 4: in order to protect the hob 8 during cutting, as shown in fig. 4, four hob grooves 801 are respectively arranged on the cutterhead 7 at two sides of the central cutter groove 901, and each hob groove 801 is fixedly provided with one hob 8 through bolts. Other structures and operation principles are the same as those of embodiment 3.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. The utility model provides a carry on cantilever entry driving machine of hobbing cutter broken rock, includes main part mechanism (1), its characterized in that: the front part of the main body mechanism (1) is provided with a rotating device, at least one cantilever (6) is movably arranged on the rotating device, the front part of the cantilever (6) is rotationally connected with a cutter head (7), and a hob (8) is arranged on the cutter head (7);
The slewing device comprises a slewing table (5), the slewing table (5) is movably arranged at the front part of the main body mechanism (1), a hydraulic slewing cylinder for driving the slewing table (5) to rotate is arranged in the main body mechanism (1), a pitching cylinder (503) is arranged at the front part of the slewing table (5), and a cantilever (6) is hinged on the slewing table (5);
The driving oil cylinder in the main body mechanism (1) drives the rotary table (5) to rotate through gear transmission, the rotary table (5) drives the corresponding cantilever (6) and the cutterhead (7) to horizontally rotate at the same time, and the pitching oil cylinder (503) drives the cantilever (6) to drive the cutterhead (7) to vertically move, so that the cutterhead (7) can randomly move in the same rock surface layer to obtain a larger rock breaking range;
The main body mechanism (1) drives a rotating motor in the cantilever (6) to rotate, a rotating shaft connected with an output shaft of the rotating motor drives the cutterhead (7) to rotate, and the cutterhead (7) drives the central cutter (9) and the hob (8) to rotate; the saw teeth of the hob (8) are obliquely cut into the rock under pressure, the cutter head of the central cutter (9) is cut into the rock at the front side after being subjected to pressure, and the rock on the excavated surface is cracked and broken down under the rolling of the hob (8) and the central cutter (9).
2. The boom cutter for carrying out hob breaking according to claim 1, wherein: the counter-force supporting mechanism (2) and the travelling mechanism (4) are arranged at the lower part of the main body mechanism (1), the slag discharging system (3) is arranged inside the main body mechanism (1), and the slag discharging system (3) extends out of the rear part of the main body mechanism (1).
3. The boom cutter for carrying out hob breaking according to claim 2, wherein: an ear seat (502) is arranged on the rotary table (5), and the rear part of the cantilever (6) is hinged on the ear seat (502).
4. The boom cutter for carrying out hob breaking according to claim 2, wherein: the front part of the cantilever (6) is provided with a rotating shaft, a rotating motor for driving the rotating shaft to rotate is arranged in the cantilever (6), and the cantilever (6) is rotationally connected with the cutterhead (7) through the rotating shaft.
5. The boom cutter for carrying out hob breaking according to claim 4, wherein: the included angles between the rear cutter surface of the hob (8) and the front end surface of the cutterhead (7) are acute angles.
6. The boom cutter for carrying out hob breaking according to claim 5, wherein: the middle part of the cutter disc (7) is provided with a central cutter groove (901), and at least one hob (8) is arranged on the cutter disc (7) at two sides of the central cutter groove (901).
7. The boom cutter for carrying out hob breaking according to claim 5, wherein: the middle part of blade disc (7) is equipped with center sword groove (901), is equipped with at least one hobbing cutter groove (801) on blade disc (7) of center sword groove (901) both sides, and hobbing cutter groove (801) internal fixation is equipped with hobbing cutter (8).
8. The construction method of the cantilever heading machine carrying the hob breaking according to claim 1, characterized by comprising the following steps: s1: starting the traveling mechanism (4) to drive the main body mechanism (1) to reach a construction site, and fixing the main body mechanism (1) against the ground by the counterforce support frame (2) to fix a rock stratum cutting point;
s2: the driving oil cylinder in the main body mechanism (1) drives the rotary table (5) to rotate through gear transmission, the rotary table (5) drives the cantilever (6) to rotate, the pitching oil cylinder (503) drives the cantilever (6) to move up and down, and the position of the cutter disc (7) is adjusted, so that a central cutter (9) and a hob (8) on the cutter disc (7) reach a cutting point on the surface of a rock stratum;
S3: the driving oil cylinder in the main body mechanism (1) drives the rotary table (5) to rotate through gear transmission, the rotary table (5) drives the corresponding cantilever (6) and the cutterhead (7) to horizontally rotate at the same time, and the pitching oil cylinder (503) drives the cantilever (6) to drive the cutterhead (7) to vertically move, so that the cutterhead (7) can randomly move in the same rock surface layer to obtain a larger rock breaking range;
S4: the main body mechanism (1) drives a rotating motor in the cantilever (6) to rotate, a rotating shaft connected with an output shaft of the rotating motor drives the cutterhead (7) to rotate, and the cutterhead (7) drives the central cutter (9) and the hob (8) to rotate; the saw teeth of the hob (8) are obliquely cut into the rock under pressure, the cutter head of the central cutter (9) is cut into the rock at the front side after being subjected to pressure, and the rock on the excavated surface is cracked and broken down under the rolling of the hob (8) and the central cutter (9);
S5: the broken rock slag is conveyed to the rear part of the main body mechanism (1) through the slag discharging system (3), and after the rock surface layer is broken, the main body mechanism (1) is driven by the travelling mechanism (4) to continue to advance;
s6: and repeating the steps S1 to S5 until the rock breaking engineering is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810935975.1A CN108952744B (en) | 2018-08-16 | 2018-08-16 | Cantilever heading machine carrying hob rock breaking and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810935975.1A CN108952744B (en) | 2018-08-16 | 2018-08-16 | Cantilever heading machine carrying hob rock breaking and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108952744A CN108952744A (en) | 2018-12-07 |
| CN108952744B true CN108952744B (en) | 2024-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810935975.1A Active CN108952744B (en) | 2018-08-16 | 2018-08-16 | Cantilever heading machine carrying hob rock breaking and construction method thereof |
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| Country | Link |
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| CN (1) | CN108952744B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868809A (en) * | 2018-08-16 | 2018-11-23 | 中铁工程装备集团有限公司 | A kind of multi-arm type cantilever excavator and its construction method for carrying hobboing cutter broken rock |
| CN110529139B (en) * | 2019-09-05 | 2021-08-27 | 中铁工程装备集团有限公司 | Hard rock cutter head and cantilever tunneling machine comprising same |
| CN112593965B (en) * | 2020-12-08 | 2022-10-21 | 安徽唐兴装备科技股份有限公司 | Hob can scrape push bench of soil |
| CN113833485B (en) * | 2021-09-28 | 2024-05-17 | 中国矿业大学 | Multi-mode tunnel tunneling robot suitable for complex geology |
| CN116357330B (en) * | 2023-04-09 | 2023-12-12 | 中国水利水电第十工程局有限公司 | TBM construction method for improving hob installation structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201424939Y (en) * | 2009-05-28 | 2010-03-17 | 湖南永安煤矿机械制造有限公司 | Improved coal road boring machine |
| CN208669316U (en) * | 2018-08-16 | 2019-03-29 | 中铁工程装备集团有限公司 | A kind of cantilever excavator for carrying hobboing cutter broken rock |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033688A (en) * | 2006-03-10 | 2007-09-12 | 翟军 | Cantilevered tunnelling road-header |
| CN101070761B (en) * | 2006-05-10 | 2010-12-08 | 三一重型装备有限公司 | Digging-protecting integrated digging-protecting machine |
| CN102926750A (en) * | 2012-10-11 | 2013-02-13 | 李凯 | Multi-arm breaking excavation-type heading machine |
| CN108086989B (en) * | 2017-11-21 | 2019-09-03 | 中国矿业大学 | A kind of solid rock is without big gun mole |
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2018
- 2018-08-16 CN CN201810935975.1A patent/CN108952744B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201424939Y (en) * | 2009-05-28 | 2010-03-17 | 湖南永安煤矿机械制造有限公司 | Improved coal road boring machine |
| CN208669316U (en) * | 2018-08-16 | 2019-03-29 | 中铁工程装备集团有限公司 | A kind of cantilever excavator for carrying hobboing cutter broken rock |
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| CN108952744A (en) | 2018-12-07 |
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