CN104110263B - A kind of cutter head structure for TBM - Google Patents
A kind of cutter head structure for TBM Download PDFInfo
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- CN104110263B CN104110263B CN201410346549.6A CN201410346549A CN104110263B CN 104110263 B CN104110263 B CN 104110263B CN 201410346549 A CN201410346549 A CN 201410346549A CN 104110263 B CN104110263 B CN 104110263B
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Abstract
A kind of cutter head structure for TBM, the side of cutterhead body is fixedly installed on TBM body, the scope of operation of opposite side is sphere, vertex position in the scope of operation arranges center mounting hole, and central hob group is set in center mounting hole, in the scope of operation of cutterhead body, with the central axis of cutterhead body as the center of circle, multiple installing hole it is uniformly arranged respectively on multiple circumference that radius is different, and it is uniformly arranged, between two adjacent circle installing holes, the native stone tap discharged in order to soil stone, in installing hole, it is respectively provided with the hobboing cutter in order to fragmented rock body.The present invention is by the improvement of cutter head structure and the optimization of hobboing cutter arrangement, improving the excavation area of broken rock cutterhead, increase the layout quantity of hobboing cutter, to improve efficiency of breaking rock and to reduce cutter head torque and thrust.
Description
Technical field
The invention belongs to breaking technique for rock field, be primarily related to the cutter head structure for TBM.
Background technology
nullTBM is tunneling boring hard rock mole，Driving can be realized、Supporting、The operation such as slag tap also is worked continuously，There is driving speed fast，Environmental protection、Comprehensive benefit is high a little，The construction of the complicated geographical relief deep-lying long tunnels that tradition drilling and blasting method is difficult to can be realized，Under thrust，The disk cutter being arranged on cutterhead presses scar，Rotation along with cutterhead，Disk cutter around cutter head center axle revolve round the sun while around own axes rotation，In the thrust that cutterhead is powerful、Under moment of torsion effect，Hobboing cutter rolls on the concentric circular joint-cutting that face is fixed，Hobboing cutter is pushed down into rock surface in the propelling of power and initial velocity，Produce local deformation，Concentrate at contact site stress and produce fracture area，Under the continuous action of power，Crackle expands，Region of stress concentration expanded range，Formation fragment comes off，Therefore，In order to improve TBM efficiency of breaking rock，The degree of depth and the crack extesion length in fragmentation district will be increased，Increase the size of the excavation face carg that comes off.The most commonly used cutterhead is planar structure, and excavation area is little, and on cutterhead, to arrange quantity few for disk cutter, efficiency of breaking rock is relatively low, and can only rely on disk cutter rotary cutting, fractured rock, therefore, disk cutter suffered moment of torsion in the process is relatively big, easily weares and teares, and service life is short.
Summary of the invention
It is an object of the invention to provide a kind of cutter head structure for TBM, by to the improvement of broken rock cutter head structure and the optimization of hobboing cutter arrangement, improve the excavation area of broken rock cutterhead, increase the layout quantity of hobboing cutter, to improve efficiency of breaking rock and to reduce cutter head torque and thrust.
The present invention solves above-mentioned technical problem and the technical scheme is that a kind of cutter head structure for TBM, including cutterhead body and the hobboing cutter being arranged on cutterhead body, described cutterhead body side is arranged on TBM, opposite side is the scope of operation, and protrude formation work convex surface to operative orientation, the work convex surface of cutterhead body is respectively provided with installing hole and soil stone tap, installing hole becomes circle distribution, often the center of circle of circle installing hole place circumference is positioned on cutterhead body central axis, it is uniformly arranged soil stone tap between two adjacent circle installing holes, described hobboing cutter is arranged in installing hole by cutter shaft, and along the tangential direction rotation of described circumference in installing hole.
Further, the scope of operation of described cutterhead body could be arranged to sphere.
Further, in a centrally disposed group switching centre hobboing cutter group of the cutterhead body scope of operation, described central hob group is sequentially connected with by self cutter shaft by multiple hobboing cutters and constitutes, and in centrally disposed installing hole.
Compared with prior art, the method have the advantages that
First, in the present invention, the scope of operation of cutterhead body uses convex surface, compared with plane cutterhead of the prior art, under the conditions of equivalent diameter, the cutterhead of the present invention has bigger pledge excavation area, therefore, more hobboing cutter can be arranged excavate, there is higher efficiency of breaking rock；
Second, in the prior art, pledge excavation face is plane, owing to the cutterhead body of the present invention is convex surface, therefore when tunnel is dug, the pledge excavation of tunnel forms concave surface towards indent, when the crackle of the rock formation that hobboing cutter extruding destroys spreads to surrounding, fragment on concave surface is easier to come off, and the especially fragment at concave surface top is not only extruded by hobboing cutter, but also is affected by self gravitation, it is easy to split away off from rock mass, this improves the excavation efficiency of TBM, reduce the thrust of TBM；
3rd, owing in the present invention, the scope of operation of cutterhead body is convex surface, and at the beginning of excavation, tunnel rock mass is mostly plane, on cutterhead body, most hobboing cutters cannot touch rock mass, and therefore, first the central hob group being positioned at cutterhead body scope of operation center can contact with rock mass surface, and carried out the excavation of rock mass by the rotation of central hob group, to improve efficiency of breaking rock；
4th, the present invention arranges soil stone tap, between two adjacent rings hobboing cutter in digging process, the native stone smashed by hobboing cutter can directly fall on the ground, it is also possible to rearward discharges through soil stone tap, to prevent hobboing cutter from being blocked by soil stone, reduce the degree of wear of hobboing cutter, extend its service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the schematic side view of the present invention.
Labelling in figure: 1, cutterhead body, 2, hobboing cutter, 3, soil stone tap, 4, central hob group.
Detailed description of the invention
Below in conjunction with the accompanying drawings, by detailed description of the invention, the present invention is further illustrated.
As shown in the figure, a kind of cutter head structure for TBM, the side of cutterhead body 1 is fixedly installed on TBM body, the scope of operation of opposite side is sphere, vertex position in the scope of operation arranges center mounting hole, and central hob group 4 is set in center mounting hole, described central hob group 4 is connected in sequence each other by cutter shaft by four hobboing cutters, in the scope of operation of cutterhead body 1, with the central axis of cutterhead body 1 as the center of circle, multiple installing hole it is uniformly arranged respectively on multiple circumference that radius is different, and it is uniformly arranged, between two adjacent circle installing holes, the native stone tap 3 discharged in order to soil stone, the hobboing cutter 2 in order to fragmented rock body it is respectively provided with in installing hole.
In use, according to the different situations of rock, selecting to use the suitable cutterhead of diameter, the rock that hardness is bigger is bigger compared with the cutter diameter needed for little rock than hardness.
Described cutterhead body 1 center can arrange drill bit, with the central hob group 4 described in replacement, is contacted with rock excavation face by drill bit at the beginning of tunneling process, and rock excavation face carries out the pre-destruction of boring formation.
During use, owing to the scope of operation of cutterhead body 1 is sphere, and rock excavation face is plane, therefore, work the initial stage at TBM, the only central hob group 4 of cutterhead body 1 touches rock excavation face, rock mass is crushed, and along with the carrying out of driving, rock excavation face gradually forms the concave surface matched with cutterhead body 1, compared to plane cutterhead, the excavation area of concave surface is bigger, therefore drivage efficiency is higher, and, in tunneling process, the native stone part being broken drops on the ground, another part is then discharged into outside TBM machine by the native stone tap 3 on cutterhead body 1.
Claims (1)
- null1. the cutter head structure for TBM，Including cutterhead body (1) be arranged on the upper multiple hobboing cutters (2) for fractured rock of cutterhead body (1)，It is characterized in that: the operation of described cutterhead body (1) convexes to form sphere towards operative orientation，At the upper installing hole arranged in order to install hobboing cutter (2) of cutterhead body (1) and soil stone tap (3)，Multiple installing holes are separately positioned on the circumference with cutterhead body (1) center different radii as the center of circle，Soil stone tap (3) is uniformly arranged between two adjacent circle installing holes，Described hobboing cutter (2) is arranged in installing hole by cutter shaft，And along the tangential direction rotation of described circumference in installing hole，And the vertex position in the scope of operation arranges center mounting hole，And central hob group is set in center mounting hole，Central hob group is connected in sequence by cutter shaft by multiple hobboing cutters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410346549.6A CN104110263B (en) | 2014-07-21 | 2014-07-21 | A kind of cutter head structure for TBM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410346549.6A CN104110263B (en) | 2014-07-21 | 2014-07-21 | A kind of cutter head structure for TBM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104110263A CN104110263A (en) | 2014-10-22 |
| CN104110263B true CN104110263B (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410346549.6A Active CN104110263B (en) | 2014-07-21 | 2014-07-21 | A kind of cutter head structure for TBM |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697030B (en) * | 2016-03-02 | 2018-08-10 | 华北电力大学 | Increase the method and curved surface cutterhead of complete-section tunnel boring machine continuous type cutterhead rigidity |
| CN109899079A (en) * | 2019-04-11 | 2019-06-18 | 黄河勘测规划设计研究院有限公司 | The TBM cutterhead for having PDC drill bit auxiliary rock |
| CN113445374B (en) * | 2020-03-27 | 2022-08-09 | 比亚迪股份有限公司 | A anti-skidding line processing equipment and track roof beam for track roof beam |
| CN114961732B (en) * | 2022-03-29 | 2023-02-17 | 中国矿业大学(北京) | Hob structure and cutter ring design method of vertical shaft full-face heading machine and heading machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1239344A1 (en) * | 1984-06-01 | 1986-06-23 | Предприятие П/Я М-5703 | Working member of mechanized entry-driving shield |
| JPH1113389A (en) * | 1997-06-24 | 1999-01-19 | Kawasaki Heavy Ind Ltd | Method for propelling by shield jack, and excavating machine for executing the same |
| CN201241711Y (en) * | 2008-08-19 | 2009-05-20 | 中铁十八局集团有限公司 | Hard rock development machine cutter head panel with restoring and strengthening functions |
| CN201381859Y (en) * | 2008-12-25 | 2010-01-13 | 扬州广鑫机械有限公司 | Polygonal tube push bench with breaking function |
| CN201843620U (en) * | 2010-07-01 | 2011-05-25 | 上海市第二市政工程有限公司 | Cutting cutter head of pipe-jacking tunneling machine |
| CN103452566B (en) * | 2013-09-16 | 2016-06-29 | 中铁工程装备集团有限公司 | Vertical shaft TBM device |
| CN204002830U (en) * | 2014-07-21 | 2014-12-10 | 洛阳理工学院 | A kind of cutter head structure for TBM |
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2014
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| CN104110263A (en) | 2014-10-22 |
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Inventor after: Sun Zhenchuan Inventor after: Chen Kui Inventor after: Zhou Jianjun Inventor after: Li Fengyuan Inventor after: Zhang Bing Inventor after: Guo Haipo Inventor after: Wang Haixia Inventor before: Chang Jiadong Inventor before: Wang Haixia |
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Effective date of registration: 20171122 Address after: 471000, Henan province Luoyang old town champion Red Road Co-patentee after: STATE KEY LABORATORY OF SHIELD MACHINE AND BORING TECHNOLOGY Patentee after: China Railway Tunnel Bureau Group Co Ltd Address before: 471000 Henan province Luoyang City Ze road hi tech Development Zone Patentee before: Luoyang Institute Of Science And Technology |