CN108825256B - Multi-arm cantilever tunneling machine and construction method thereof - Google Patents
Multi-arm cantilever tunneling machine and construction method thereof Download PDFInfo
- Publication number
- CN108825256B CN108825256B CN201810937088.8A CN201810937088A CN108825256B CN 108825256 B CN108825256 B CN 108825256B CN 201810937088 A CN201810937088 A CN 201810937088A CN 108825256 B CN108825256 B CN 108825256B
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- cantilever
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- 238000010276 construction Methods 0.000 title claims abstract description 11
- 230000005641 tunneling Effects 0.000 title abstract description 7
- 239000011435 rock Substances 0.000 claims abstract description 40
- 239000002893 slag Substances 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
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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
- E21D9/1086—Drives or transmissions specially adapted therefor
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)
Abstract
The invention discloses a multi-arm cantilever tunneling machine and a construction method thereof, which solve the problem that the existing tunneling machine is difficult to excavate a short-distance, hard rock and special-shaped tunnel. The invention installs counter-force supporting mechanism and travelling mechanism in the lower part of the main body mechanism, there are slag discharging systems in the main body mechanism, slag discharging system extends out of the rear part of the main body mechanism, there are two rotary tables in the upper and lower symmetry activity of the front part of the main body mechanism, there are hydraulic rotary cylinders driving the rotary tables to rotate in the main body mechanism, there are pitching cylinders in the front part of two rotary tables, there is at least one cantilever on the rotary table, the front part of the cantilever has rotating shafts, there are rotating motors driving the rotating shafts to rotate in the cantilever, the cantilever is connected with cutting part through the rotating shaft. The multi-arm type cantilever is adopted, and the cutting part is additionally arranged at the front part of each cantilever, so that multi-point simultaneous excavation can be realized, and the excavation efficiency and the rock hardness range of rock breaking are improved.
Description
Technical Field
The invention relates to the technical field of a cantilever of a heading machine, in particular to a multi-arm cantilever heading machine and a construction method thereof.
Background
The cantilever heading machine used in the tunnel construction at present is mainly used for all-rock tunnels and half-coal tunnels with lower hardness, and has less application to hard-rock tunnels. The existing cantilever heading machine is a single cantilever, the cantilever excavation structure is tightly attached to the face during tunneling construction, the cantilever swings left and right and up and down, rocks are sequentially cut from one side to the other side, and the excavation efficiency is low. There is a need for a boom cutter that can be used for short-range, hard rock, profiled tunnel excavation.
Disclosure of Invention
The invention provides a multi-arm cantilever heading machine and a construction method thereof, aiming at solving the problem that the existing heading machine in the background technology is difficult to excavate short-distance hard rock and special-shaped tunnels.
The technical scheme of the invention is as follows: a multi-arm cantilever tunneling machine comprises a main body mechanism, wherein two rotating devices are symmetrically arranged on the front part of the main body mechanism up and down, at least one cantilever is movably arranged on each rotating device, and a cutting part is movably arranged on the front part of each cantilever.
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 cutting part through the rotating shaft.
The cutting part is provided with a spiral tooth holder, and a plurality of cutting picks are uniformly arranged on the spiral tooth holder.
The construction method of the multi-arm cantilever heading machine 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 cutting part is adjusted, so that the cutting part reaches a cutting point;
s3: the driving oil cylinders in the main body mechanism drive the rotary tables to rotate through gear transmission, each rotary table drives the corresponding cantilever and the cutting part to horizontally rotate at the same time, and the pitching oil cylinders drive the cantilever and drive the cutting part to vertically move, so that all the cutting parts 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 the cutting part to rotate, the rotating shaft drives the cutting part to rotate, a cutting pick of the cutting part cuts into rock to break the rock, and rock on the excavated surface generates cracks under the rolling of the cutting pick of the cutting part so as to collapse;
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.
The cantilever heading machine multi-arm type cantilever is provided with the cutting part at the front part of each cantilever, so that multi-point simultaneous excavation can be realized, the excavation efficiency is improved, and the cantilever heading machine multi-arm type cantilever is suitable for excavating short-distance tunnels and hard rock tunnels; the rotary table drives the cantilever to swing left and right on the horizontal plane, and the pitching oil cylinder drives the cantilever to move up and down on the vertical plane, so that the device can be used for excavating special-shaped sections.
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 view of a cutting portion structure of the present invention;
fig. 4 is a schematic representation of an excavated cross-section of the present invention.
In the figure, 1, a main body mechanism, 2, a counter-force supporting mechanism, 3, a slag discharging device, 4, a travelling mechanism, 5, a rotary table, 501, a bearing, 502, an ear seat, 503, a pitching oil cylinder, 6, a cantilever, 7, a rotating shaft, 8, a cutting part, 801, a spiral tooth seat, 802 and a cutting pick.
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, example 1: a multi-arm cantilever tunneling machine comprises a main body mechanism 1, wherein an operation room for personnel operation is arranged at the upper part of the main body mechanism 1. The counter-force supporting mechanism 2 and the running gear 4 are installed to body mechanism 1 lower part, and body mechanism 1 is inside to be equipped with slag discharging system 3, and slag discharging system 3 extends body mechanism 1 rear portion, and body mechanism 1 front portion symmetry activity from top to bottom is equipped with two revolving tables 5, and body mechanism 1 is inside to be equipped with the rotatory hydraulic slewing cylinder of drive revolving table 5, and the front portion of two revolving tables 5 all is equipped with pitch cylinder 503, is equipped with ear seat 502 on the revolving table 5, and the rear portion of cantilever 6 articulates on ear seat 502. The front part of the cantilever 6 is provided with a rotating shaft 7, the inside of the cantilever 6 is provided with a rotating motor for driving the rotating shaft 7 to rotate, and the cantilever 6 is connected with the cutting part 8 through the rotating shaft 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 cutting part 8 is adjusted, so that the cutting part 8 reaches a cutting point;
s3: the driving oil cylinder in the main body mechanism 1 drives the rotary tables 5 to rotate through gear transmission, each rotary table 5 drives the corresponding cantilever 6 and the cutting part 8 to horizontally rotate at the same time, and the pitching oil cylinder 503 drives the cantilever 6 to drive the cutting part 8 to vertically move, so that all the cutting parts 8 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 7 connected with an output shaft of the rotating motor drives the cutting part 8 to rotate, the rotating shaft 7 drives the cutting part 8 to rotate, a cutting pick 802 of the cutting part 8 cuts into rock to break the rock, and rock on the excavated surface generates cracks under the rolling of the cutting pick 802 of the cutting part 8 so as to collapse;
s5: the broken rock slag is conveyed to the rear part of the main body mechanism 1 through the slag discharging system 3, when the rock surface layer is broken, an excavation section shown in fig. 4 is formed, and the travelling 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: in order to facilitate the cantilever 6 to stably and uniformly move up and down and rotate, the bearing capacity of the cantilever 6 is increased, and the cantilever 6 can uniformly and cooperatively move when rock is broken on a face, as shown in fig. 2, two rotary tables 5 are connected through bearings, two cantilevers 6 are hinged on each rotary table 5, and each cantilever 6 is hinged with two pitching cylinders 503. Other structures and use modes are the same as those of the embodiment 1.
Example 3: as shown in fig. 3, the cutting part 8 is provided with a spiral tooth holder 801, and a plurality of cutting picks 802 are uniformly arranged on the spiral tooth holder. In operation, the cutting pick 802 at the front part of the cutting part 8 is firstly contacted with the rock surface, the main body mechanism 1 drives the rotary motor in the cantilever 6 to rotate, the rotary shaft 7 connected with the output shaft of the rotary motor rotates, the rotary shaft 7 drives the cutting part 8 to rotate, the cutting pick 802 of the cutting part 8 cuts into the rock to break the rock, and other structures and using modes are the same as those of the embodiment 1.
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 (4)
1. The utility model provides a multi-arm cantilever development machine, includes main part mechanism (1), its characterized in that: two slewing devices are symmetrically arranged at the front part of the main body mechanism (1) up and down, two cantilevers (6) are movably arranged on the slewing devices, and a cutting part (8) is movably arranged at the front part of each cantilever (6);
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);
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);
the cutting part (8) is provided with a spiral tooth holder (801), and a plurality of cutting picks (802) are uniformly arranged on the spiral tooth holder (801);
the two rotary tables (5) are connected through bearings.
2. The multi-arm boom heading machine of 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. A multi-arm boom heading machine as claimed in claim 1 or claim 2, wherein: the multi-arm cantilever heading machine is characterized in that: the front part of the cantilever (6) is provided with a rotating shaft (7), a rotating motor for driving the rotating shaft (7) to rotate is arranged in the cantilever (6), and the cantilever (6) is rotationally connected with the cutting part (8) through the rotating shaft (7).
4. A method of constructing a multi-arm boom tunnel boring machine according to claim 1, comprising the steps of: 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 counter-force supporting mechanism (2) to fix a rock stratum cutting point;
s2: a 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 cutting part (8) is adjusted, so that the cutting part (8) reaches a cutting point;
s3: the driving oil cylinder in the main body mechanism (1) drives the rotary tables (5) to rotate through gear transmission, each rotary table (5) drives the corresponding cantilever (6) and the cutting part (8) to horizontally rotate at the same time, and the pitching oil cylinder (503) drives the cantilever (6) to drive the cutting part (8) to vertically move, so that all the cutting parts (8) 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 (7) connected with an output shaft of the rotating motor drives the cutting part (8) to rotate, the rotating shaft (7) drives the cutting part (8) to rotate, a cutting pick (802) of the cutting part (8) cuts into rock to break the rock, and the rock on the excavated surface generates cracks under the rolling of the cutting pick (802) of the cutting part (8) so as to collapse;
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 |
|---|---|---|---|
| CN201810937088.8A CN108825256B (en) | 2018-08-16 | 2018-08-16 | Multi-arm cantilever tunneling machine and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937088.8A CN108825256B (en) | 2018-08-16 | 2018-08-16 | Multi-arm cantilever tunneling machine and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825256A CN108825256A (en) | 2018-11-16 |
| CN108825256B true CN108825256B (en) | 2024-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810937088.8A Active CN108825256B (en) | 2018-08-16 | 2018-08-16 | Multi-arm cantilever tunneling machine and construction method thereof |
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| Country | Link |
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| CN (1) | CN108825256B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667580B (en) * | 2019-02-23 | 2024-06-25 | 中铁工程装备集团隧道设备制造有限公司 | Multi-cutting-arm tunneling mechanism and tunneling machine |
| CN110173273A (en) * | 2019-05-27 | 2019-08-27 | 中铁工程装备集团隧道设备制造有限公司 | A kind of hard rock bilayer self-balancing is stretched cutting arm and cantilever excavator |
| CN110185465B (en) * | 2019-06-19 | 2024-06-04 | 中铁工程装备集团隧道设备制造有限公司 | Cutting part, tunneling equipment and tunneling method |
| CN111042827A (en) * | 2019-12-26 | 2020-04-21 | 中联重科股份有限公司 | Multi-arm heading machine |
| CN111058856A (en) * | 2019-12-26 | 2020-04-24 | 中联重科股份有限公司 | Axial feeding tunneling device and tunneling machine |
| CN111075467B (en) * | 2019-12-26 | 2021-08-17 | 中联重科股份有限公司 | Tunnel construction method of heading machine |
| CN211115995U (en) * | 2019-12-27 | 2020-07-28 | 李恒 | Shock absorption device of coal mine fully-mechanized excavating machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912272A (en) * | 2012-12-28 | 2014-07-09 | 方瑜 | Heading machine |
| CN104018833A (en) * | 2014-05-08 | 2014-09-03 | 曲天智 | Heading machine with double cantilever-type vertical axis cutting sections |
| CN204476409U (en) * | 2015-03-19 | 2015-07-15 | 闫立章 | Development machine combined type cut breaks rock and is split up device |
| CN208900105U (en) * | 2018-08-16 | 2019-05-24 | 中铁工程装备集团有限公司 | A kind of multi-arm type cantilever excavator |
-
2018
- 2018-08-16 CN CN201810937088.8A patent/CN108825256B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912272A (en) * | 2012-12-28 | 2014-07-09 | 方瑜 | Heading machine |
| CN104018833A (en) * | 2014-05-08 | 2014-09-03 | 曲天智 | Heading machine with double cantilever-type vertical axis cutting sections |
| CN204476409U (en) * | 2015-03-19 | 2015-07-15 | 闫立章 | Development machine combined type cut breaks rock and is split up device |
| CN208900105U (en) * | 2018-08-16 | 2019-05-24 | 中铁工程装备集团有限公司 | A kind of multi-arm type cantilever excavator |
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| CN108825256A (en) | 2018-11-16 |
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