CN111963183A - Shield cutter structure suitable for upper soft and lower hard stratum - Google Patents
Shield cutter structure suitable for upper soft and lower hard stratum Download PDFInfo
- Publication number
- CN111963183A CN111963183A CN202010792687.2A CN202010792687A CN111963183A CN 111963183 A CN111963183 A CN 111963183A CN 202010792687 A CN202010792687 A CN 202010792687A CN 111963183 A CN111963183 A CN 111963183A
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- cutter
- shield
- structure suitable
- crushing
- head panel
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- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 9
- 229910003460 diamond Inorganic materials 0.000 claims description 8
- 239000010432 diamond Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims 9
- 230000005641 tunneling Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a shield cutter structure suitable for a stratum with a soft upper part and a hard lower part, and belongs to the technical field of engineering machinery. The shield cutter structure suitable for the stratum with the upper soft part and the lower hard part comprises a cutter head panel, an excircle crushing cutter, a cutting cutter, a hobbing cutter and a spiral conveyor, wherein a circle of boss is convexly arranged on the edge of the cutter head panel; the cutter head panel is convexly provided with a stiffening beam, and the hob is arranged on the stiffening beam; a cutting tool is arranged between the boss of the cutter head panel and the reinforcing beam and comprises a tool body and an installation block, the tool body is provided with a main cutter, and three secondary cutters are uniformly arranged at the upper end of the tool body at intervals. According to the shield cutter structure suitable for the upper soft and lower hard stratum, when the cutter head panel rotates, the outer circle crushing cutter impacts downwards from the lower soft upper layer to impact the lower hard lower layer, so that the pre-crushing effect is achieved, the shield cutter structure is more suitable for the upper soft and lower hard stratum compared with the cutter structure of the traditional shield machine, and the crushing and tunneling efficiency is greatly improved.
Description
Technical Field
The invention relates to a shield cutter structure suitable for a stratum with a soft upper part and a hard lower part, and belongs to the technical field of engineering machinery.
Background
The shield machine is a tunnel boring machine using a shield method, is called a shield tunnel boring machine in full name, is a special engineering machine for tunnel boring, integrates light, mechanical, electrical, hydraulic, sensing and information technologies into a whole, has the functions of excavating and cutting soil, conveying soil slag, assembling tunnel lining, measuring, guiding, correcting deviation and the like, relates to multiple subject technologies such as geology, construction, machinery, mechanics, hydraulic pressure, electrical, control and measurement, and is designed and manufactured in a 'body-measuring clothes-cutting' mode according to different geology, and has extremely high reliability requirement. The shield tunneling machine is widely used for tunnel engineering of subway, railway, highway, municipal administration, hydropower and the like.
The basic working principle of the shield tunneling machine is that a cylindrical steel component is pushed forwards along the axis of the tunnel to excavate soil. The casing of the cylinder assembly, the shield, acts as a temporary support for the excavated, not yet lined tunnel section, bearing the pressure of the surrounding soil layers and sometimes also the groundwater pressure and the water that is trapped outside. The operations of digging, dumping, lining and the like are carried out under the shield of the shield.
When the existing shield machine excavates a soft upper layer and a hard lower layer, a cutter structure of the shield machine cannot well dig, and a hard lower layer often causes difficulty in excavation and low digging efficiency.
Disclosure of Invention
The invention aims to solve the technical problem of providing a shield cutter structure which is high in tunneling efficiency and used for a stratum with a soft upper part and a hard lower part, aiming at the defects of the prior art.
The technical scheme provided by the invention for solving the technical problems is as follows: a shield cutter structure suitable for a stratum with a soft upper part and a hard lower part comprises a cutter head panel, an excircle crushing cutter, a cutting cutter, a hobbing cutter and a spiral conveyor, wherein a circle of annular bosses are convexly arranged at the edge of the cutter head panel, and the excircle crushing cutters are uniformly distributed on the bosses; the cutter head panel is convexly provided with stiffening beams which are radially distributed from the center of the cutter head panel to the outer side, and the hobs are uniformly arranged on the stiffening beams at intervals; the spiral conveyor is arranged in the center of the cutter head panel;
cutting tools are uniformly distributed between the boss of the cutter head panel and the stiffening beam and comprise a tool body and an installation block, the lower end of the tool body is integrated with the installation block, a main cutter is arranged at the upper right corner of the tool body, and at least three secondary cutters are uniformly arranged at the upper end of the tool body at intervals.
The improvement of the technical scheme is as follows: eight external circle crushing cutters are arranged at intervals along the circumferential direction of the boss.
The improvement of the technical scheme is as follows: eight stiffening beams are provided, and the eight stiffening beams are arranged at even intervals.
The improvement of the technical scheme is as follows: the secondary position of the cutting tool is three.
The improvement of the technical scheme is as follows: two mounting holes are formed in the mounting block of the cutting tool, and the two mounting holes are symmetrically arranged.
The improvement of the technical scheme is as follows: the surface of the excircle crushing cutter is provided with a high-silicon aluminum alloy layer.
The improvement of the technical scheme is as follows: the surface of the cutting tool is provided with a diamond wear layer.
The improvement of the technical scheme is as follows: the thickness of the high-silicon aluminum alloy layer on the surface of the excircle crushing cutter is 500-900 mu m.
The improvement of the technical scheme is as follows: the diamond wear layer thickness of the surface of the cutting tool is 200 and 600 μm.
The improvement of the technical scheme is as follows: the excircle crushing cutter and the cutting cutter are made of tungsten steel.
The invention adopts the technical scheme that the method has the beneficial effects that:
(1) according to the shield cutter structure suitable for the stratum with soft top and hard bottom, the boss is convexly arranged on the edge of the cutter head panel, the outer circle crushing cutter is mounted on the boss, when the cutter head panel rotates, the outer circle crushing cutter impacts downwards from the bottom layer with soft top layer to impact the bottom layer with hard bottom layer, so that the pre-crushing effect is achieved, then the secondary crushing and cutting are carried out through the cutting cutter, finally, the final crushing and crushing are carried out through the hob on the stiffening beam, the shield cutter structure is more suitable for the stratum with soft top and hard bottom compared with the cutter structure of the traditional shield machine, and the crushing and tunneling efficiency is greatly improved;
(2) according to the shield cutter structure suitable for the upper soft and lower hard stratum, the stiffening beam is convexly arranged on the cutter head panel, so that the strength of the cutter head panel is improved, and the crushing and tunneling stability of a shield machine is ensured;
(3) the cutting tool of the shield cutter structure suitable for the upper soft and lower hard stratum can adapt to high-strength and high-speed crushing and cutting work through the matching of the main position cutter and the at least three secondary position cutters, so that the crushing and tunneling efficiency of the shield machine is improved;
(4) the mounting block of the cutting tool of the shield tool structure suitable for the upper soft and lower hard stratum is provided with two mounting holes, and the two mounting holes are symmetrically arranged, so that the mounting is firmer and more stable;
(5) the high-silicon aluminum alloy layer is arranged on the surface of the excircle crushing cutter of the shield cutter structure suitable for the upper soft and lower hard stratum, and has the advantages of quick heat dissipation, good wear resistance, light weight and the like, so that the excircle crushing cutter can adapt to high-strength crushing work, and the excircle crushing cutter can be prevented from being overheated, thereby prolonging the service life;
(6) the surface of the cutting tool of the shield tool structure suitable for the upper soft and lower hard stratum is provided with the diamond wear-resistant layer, so that the wear resistance and the cutting performance of the cutting tool can be effectively improved, the working efficiency is improved, and the service life of the cutting tool is prolonged.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a shield cutter structure suitable for a soft upper and hard lower stratum according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a cutting tool structure of a shield tool structure suitable for a hard formation with a soft upper layer and a hard lower layer according to an embodiment of the invention;
wherein: 1-cutter head panel, 2-boss, 3-excircle crushing cutter, 4-cutting cutter, 5-reinforcing beam, 6-hob, 7-screw conveyor, 8-secondary cutter, 9-primary cutter, 10-cutter body, 11-mounting block and 12-mounting hole.
Detailed Description
Examples
The shield cutter structure suitable for the upper soft and lower hard stratum of the embodiment comprises a cutter head panel 1, an excircle crushing cutter 3, a cutting cutter 4, a hob 6 and a screw conveyor 7, wherein a circle of annular bosses 2 are convexly arranged on the edge of the cutter head panel 1, and the excircle crushing cutters 3 are uniformly distributed on the bosses 2; the cutter head panel 1 is convexly provided with stiffening beams 5, the stiffening beams 5 are radially distributed from the center of the cutter head panel 1 to the outer stroke, and the hobs 6 are uniformly arranged on the stiffening beams 5 at intervals; the screw conveyor 7 is arranged at the center of the cutter head panel 1; cutting tools 4 are uniformly arranged between the boss 2 and the reinforcing beam 5 of the cutter head panel 1, each cutting tool 4 comprises a tool body 10 and an installation block 11, the lower end of each tool body 10 and the installation block 11 are manufactured into a whole, a main cutter 9 is arranged at the upper right corner of each tool body 10, and three secondary cutters 8 are uniformly arranged at the upper end of each tool body 10 at intervals.
The outer circle crushing cutter 3 of the shield cutter structure suitable for the upper soft and lower hard stratum of the embodiment is eight, and the eight outer circle crushing cutters 3 are uniformly arranged at intervals along the circumferential direction of the boss 2. Eight stiffening beams 5 are provided, and eight stiffening beams 5 are evenly arranged at intervals. Two mounting holes 12 are formed in the mounting block 11 of the cutting tool 4, and the two mounting holes 12 are symmetrically arranged. The surface of the excircle crushing cutter 3 is provided with a high-silicon aluminum alloy layer. The surface of the cutting tool 4 is provided with a diamond wear layer. The thickness of the high-silicon aluminum alloy layer on the surface of the excircle crushing cutter 3 is 800 mu m. The surface of the cutting tool 4 had a diamond wear layer thickness of 350 μm. The excircle crushing cutter 3 and the cutting cutter 4 are made of tungsten steel.
According to the shield cutter structure suitable for the upper soft and lower hard stratum, the boss 2 is convexly arranged on the edge of the cutter head panel 1, the outer circle crushing cutter 3 is installed on the boss 2, when the cutter head panel 1 rotates, the outer circle crushing cutter 3 impacts downwards from the lower layer of the upper layer to impact the lower layer of the upper layer of; according to the shield cutter structure suitable for the upper soft and lower hard stratum, the strengthening beam 5 is convexly arranged on the cutter head panel 1, so that the strength of the cutter head panel 1 is improved, and the crushing and tunneling stability of a shield machine is ensured; the cutting tool 4 of the shield cutter structure suitable for the upper soft and lower hard stratum can adapt to high-strength and high-speed crushing and cutting work through the matching of the main position tool 9 and the three secondary position tools 8, so that the crushing and tunneling efficiency of the shield machine is improved; the mounting block 11 of the cutting tool 4 of the shield tool structure suitable for the upper soft and lower hard stratum of the embodiment is provided with two mounting holes 12, and the two mounting holes 12 are symmetrically arranged, so that the mounting is firmer and more stable; the surface of the excircle crushing cutter 3 of the shield cutter structure suitable for the upper soft and lower hard stratum is provided with the high-silicon aluminum alloy layer, and the high-silicon aluminum alloy layer has the advantages of fast heat dissipation, good wear resistance, light weight and the like, so that the excircle crushing cutter 3 can adapt to high-strength crushing work, the excircle crushing cutter 3 can be prevented from being overheated, and the service life is prolonged; the surface of the cutting tool 4 of the shield cutter structure suitable for the upper soft and lower hard stratum of the embodiment is provided with the diamond wear-resistant layer, so that the wear-resistant performance and the cutting performance of the cutting tool can be effectively improved, and the service life of the cutting tool 4 is prolonged while the working efficiency is improved.
The present invention is not limited to the above-described embodiments. All technical solutions formed by equivalent substitutions fall within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a shield constructs cutter structure suitable for hard stratum under soft, its characterized in that: the cutter comprises a cutter head panel, an excircle crushing cutter, a cutting cutter, a hob and a spiral conveyor, wherein a circle of circular bosses are convexly arranged on the edge of the cutter head panel, and the excircle crushing cutters are uniformly distributed on the bosses; the cutter head panel is convexly provided with stiffening beams, the stiffening beams are radially distributed from the center of the cutter head panel to the outer side, and the hobs are uniformly arranged on the stiffening beams at intervals; the spiral conveyor is arranged in the center of the cutter head panel;
cutting tools are uniformly arranged between the boss of the cutter head panel and the stiffening beam and comprise a tool body and an installation block, the lower end of the tool body and the installation block are manufactured into a whole, a main cutter is arranged at the upper right corner of the tool body, and at least three secondary cutters are uniformly arranged at the upper end of the tool body at intervals.
2. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 1, wherein: eight external circle crushing cutters are arranged at equal intervals along the circumferential direction of the boss.
3. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 2, wherein: the number of the reinforcing beams is eight, and the eight reinforcing beams are uniformly arranged at intervals.
4. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 3, wherein: the secondary cutters of the cutting tool are three.
5. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 4, wherein: two mounting holes are formed in the mounting block of the cutting tool, and the two mounting holes are symmetrically arranged.
6. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 5, wherein: and a high-silicon aluminum alloy layer is arranged on the surface of the excircle crushing cutter.
7. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 6, wherein: the surface of the cutting tool is provided with a diamond wear-resistant layer.
8. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 7, wherein: the thickness of the high-silicon aluminum alloy layer on the surface of the excircle crushing cutter is 500-900 mu m.
9. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 8, wherein: the thickness of the diamond wear-resistant layer on the surface of the cutting tool is 200-600 mu m.
10. The shield cutter structure suitable for the hard formations above soft and below as claimed in claim 9, wherein: the excircle crushing cutter and the cutting cutter are made of tungsten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792687.2A CN111963183A (en) | 2020-08-10 | 2020-08-10 | Shield cutter structure suitable for upper soft and lower hard stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792687.2A CN111963183A (en) | 2020-08-10 | 2020-08-10 | Shield cutter structure suitable for upper soft and lower hard stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111963183A true CN111963183A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010792687.2A Pending CN111963183A (en) | 2020-08-10 | 2020-08-10 | Shield cutter structure suitable for upper soft and lower hard stratum |
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| CN (1) | CN111963183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116140012A (en) * | 2022-11-15 | 2023-05-23 | 宁夏时星科技有限公司 | Material cutting equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001271586A (en) * | 2000-03-27 | 2001-10-05 | Mitsubishi Heavy Ind Ltd | Underground joint type tunnel excavator and tunnel joint method |
| CN101509381A (en) * | 2008-12-24 | 2009-08-19 | 中铁隧道集团有限公司 | Composite shield structure suitable for bad ground construction |
| CN203847122U (en) * | 2014-05-28 | 2014-09-24 | 宏润建设集团股份有限公司 | Shield tunneling machine cutter head used for complex stratums |
| CN205955740U (en) * | 2016-08-16 | 2017-02-15 | 山东天工岩土工程设备有限公司 | Novel composite seal dish -type hobbing cutter |
| CN107313783A (en) * | 2017-08-28 | 2017-11-03 | 中铁十局集团第五工程有限公司 | Groove presplitting impact type rock breaking method |
| JP2019127805A (en) * | 2018-01-26 | 2019-08-01 | 株式会社安藤・間 | Outbreak apparatus of shield machine |
| CN209444336U (en) * | 2018-12-26 | 2019-09-27 | 江苏锐之锋工程刀具有限公司 | A kind of shield cutter that base material wearability is strong |
-
2020
- 2020-08-10 CN CN202010792687.2A patent/CN111963183A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001271586A (en) * | 2000-03-27 | 2001-10-05 | Mitsubishi Heavy Ind Ltd | Underground joint type tunnel excavator and tunnel joint method |
| CN101509381A (en) * | 2008-12-24 | 2009-08-19 | 中铁隧道集团有限公司 | Composite shield structure suitable for bad ground construction |
| CN203847122U (en) * | 2014-05-28 | 2014-09-24 | 宏润建设集团股份有限公司 | Shield tunneling machine cutter head used for complex stratums |
| CN205955740U (en) * | 2016-08-16 | 2017-02-15 | 山东天工岩土工程设备有限公司 | Novel composite seal dish -type hobbing cutter |
| CN107313783A (en) * | 2017-08-28 | 2017-11-03 | 中铁十局集团第五工程有限公司 | Groove presplitting impact type rock breaking method |
| JP2019127805A (en) * | 2018-01-26 | 2019-08-01 | 株式会社安藤・間 | Outbreak apparatus of shield machine |
| CN209444336U (en) * | 2018-12-26 | 2019-09-27 | 江苏锐之锋工程刀具有限公司 | A kind of shield cutter that base material wearability is strong |
Non-Patent Citations (3)
| Title |
|---|
| 张家年;: "海底岩溶地层盾构刀盘刀具设计及应用", 建筑机械化, no. 05, 15 May 2020 (2020-05-15) * |
| 杜广召;: "盾构机采用楔形合金齿刀在掘进孤石群的应用研究", 建材与装饰, no. 15, 25 May 2020 (2020-05-25) * |
| 闫冬;江涛;丛敏;李朝;潘国灵;: "盾构隧道施工中轴线的控制与管理研究", 建筑机械化, no. 09, 15 September 2011 (2011-09-15) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116140012A (en) * | 2022-11-15 | 2023-05-23 | 宁夏时星科技有限公司 | Material cutting equipment |
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