CN109139028B - Arc-cutting shield tunneling machine cutterhead - Google Patents
Arc-cutting shield tunneling machine cutterhead Download PDFInfo
- Publication number
- CN109139028B CN109139028B CN201811135253.4A CN201811135253A CN109139028B CN 109139028 B CN109139028 B CN 109139028B CN 201811135253 A CN201811135253 A CN 201811135253A CN 109139028 B CN109139028 B CN 109139028B
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- CN
- China
- Prior art keywords
- cutterhead
- arc
- cutter
- panel
- center
- Prior art date
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- 230000005641 tunneling Effects 0.000 title abstract description 15
- 241000251468 Actinopterygii Species 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 abstract description 6
- 238000009412 basement excavation Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 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
- E21D9/06—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
Abstract
The invention discloses a shield tunneling machine cutterhead with arc cutting, which solves the problems that the stress characteristic of the cutterhead is affected by a cutting face of a concave tunnel segment and the centering of a convex segment cutterhead is affected by the cutting face of the concave tunnel segment. The cross section of the cutter head panel is of an arc-shaped structure; the cutter head panel is connected with the central rotating shaft; the center of the cutterhead panel is provided with a center fish tail cutter, the cutterhead panel is provided with a leading tearing cutter, and the leading tearing cutter is tangential to a concentric circle of the cutterhead panel; the cutter disc panel is provided with cutters which are intersected with concentric circles of the cutter disc panel; the prior tearing knife and the prior cutting knife are all arranged in a gradient manner from the center of the cutterhead panel to the edge direction of the cutterhead panel. The invention adopts an arc-shaped cutter head panel structure and a cutter setting mode, and meanwhile, the gradient-reduced cutter height difference ensures that the cutter cuts the cutting surface of the concave tunnel segment in a layered manner, so that the cutting efficiency is improved; the center fishtail knife with the concave center plays a role in centering when the shield machine is driven, and the shield machine is prevented from deviating from a designed route at the receiving end of the communication channel.
Description
Technical Field
The invention relates to the technical field of shield tunneling machine cutterheads, in particular to a shield tunneling machine cutterhead with arc cutting.
Background
Along with the rapid progress of urban treatment, the underground space is developed and utilized with high strength, and as a result, the underground space is crowded, the underground engineering construction requirement is higher and higher, the shield method is applied in large scale in urban rail transit construction with the advantage of small environmental disturbance, the communication channel construction is usually excavated and constructed by adopting a mining method after freezing or grouting reinforcement, the method has long construction period and large stratum disturbance, and the influence on the tunnel structure and surrounding buildings is large. The shield method construction cuts and tunnels by a cutter head excavation cutting mode, and shield segments on the left side and the right side need to be broken in the excavation process. The conventional plane cutterhead not only occupies large space, but also has the advantages that when the starting end is tunneled, the cutting surface of the tunnel segment is concave, the cutterhead firstly cuts the peripheral position of the excavation surface where the tunnel segment is located, and the central position of the excavation surface of the tunnel segment can be cut only after a certain distance is tunneled, so that the stress characteristic of the cutterhead and the tunnelling efficiency of the shield machine are affected; when the cutting of the peripheral segment is completed, the segment at the central position is not yet completed. The uncut part is easy to fall into a large block of 'boulder' under the action of equipment propulsion, which is not beneficial to the removal of slag soil and influences tunneling.
Disclosure of Invention
The invention provides a shield tunneling machine cutterhead with arc cutting, aiming at solving the problems that the stress characteristic of the cutterhead and the centering of a convex type duct piece cutterhead are affected by the cutting face of a concave type tunnel duct piece in the background technology.
The technical scheme of the invention is as follows: the cutter head of the shield machine for arc cutting comprises a cutter head panel, wherein the cross section of the cutter head panel is of an arc structure, so that the cutter head is convenient to drill; the cutter head panel is connected with the central rotating shaft; the center of the cutterhead panel is provided with a center fish tail cutter, the cutterhead panel is provided with a leading tearing cutter, and the leading tearing cutter is tangential to a concentric circle of the cutterhead panel; the cutter head panel is provided with cutters which are intersected with concentric circles of the cutter head panel; the cutter is all set up to the border direction decline gradient of blade disc panel from the center of blade disc panel to tear sword in advance, makes the cutter on the blade disc outwards layering cutting segment along the center, improves cutting efficiency.
The cutter head panel is provided with an arc-shaped framework, the arc-shaped framework is arranged on the central rotary shaft, the arc-shaped framework provides supporting force for the cutter head panel, and the arc-shaped framework provides installation space for the tearing knife and the cutter in advance.
The cutter head panel mainly comprises an arc-shaped framework, and the arc-shaped framework is arranged on the center rotary shaft. The arc skeleton provides supporting force for the blade disc panel to the arc skeleton provides installation space for tearing sword and cutter in advance.
Adjacent arc skeleton passes through arc spoke connection, and the arc spoke improves the steadiness of arc skeleton.
The cutter sets up along the both sides of arc skeleton, and the bottom and the arc skeleton of cutter can dismantle and be connected.
The outside of cutter is equipped with limit cutter, and the bottom and the arc skeleton of limit cutter can dismantle and be connected.
The cutter head panel is provided with a muck nozzle, the outer periphery of the cutter head panel is fixedly provided with a fastening ring, and the fastening ring further fastens the integral structure of the cutter head panel.
A cutter head end cover is arranged at the center of the cutter head panel, and the rear part of the cutter head end cover is connected with a center rotary shaft; the center fishtail knife is arranged on the end cover of the cutter head, the center fishtail knife is designed into an arc-shaped structure with a concave center, the number of the center fishtail knives at the contact point of the cutter head and the cutting segment is not less than two, and then the center fishtail knife plays a role in centering when the shield tunneling machine is driven.
The arc framework is provided with a preceding tearing knife, and the bottom of the preceding tearing knife is detachably connected with the arc framework.
The arc-shaped spokes are provided with a preceding tearing knife, and the bottoms of the preceding tearing knives are detachably connected with the arc-shaped spokes.
The invention has the beneficial effects that: 1. the cutter head panel structure and the cutter setting mode are designed into an arc shape, so that the space occupied by the cutter head is greatly reduced when the shield machine is excavated;
2. by means of the arc-shaped cutter head panel structure and the cutter arrangement mode, when the shield tunneling machine is constructed at the starting end, the contact area between the cutter head and the pipe piece to be cut can be gradually increased, and the cutter head is prevented from cutting two sides of the pipe piece firstly;
3. the cutter adopts a gradient design cutter height difference along the movement track of the cutter head, when the cutter head of the shield machine cuts the concave tunnel duct piece, the cutter on the cutter head can cut the duct piece in a layering way along the center outwards, and the cutting efficiency is improved;
4. when the cutter head of the shield machine cuts the convex tunnel duct piece, the number of contact points between the center fishtail knife and the cutting duct piece on the cutter head can be ensured to be not less than two, so that the center fishtail knife plays a role in centering when the shield machine is driven, and the shield machine is prevented from deviating from a design route at a contact channel receiving part.
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 front view of a cutterhead of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a design drawing of the center fly of FIG. 1;
fig. 4 is a diagram of the state of the cutter head excavation at the originating end of the communication channel;
FIG. 5 is a diagram of the state of the excavation of the receiving end cutterhead of the communication channel;
in the figure: the cutter comprises a cutter head panel 1, a central rotating shaft 101, an arc-shaped framework 102, a cutter head end cover 2, arc-shaped spokes 3, a central fish tail cutter 4, a preceding tearing cutter 5, a cutter 6 and a side scraper 7; 8-muck nozzle, 9-starting end face cutting segment, 10-receiving end face cutting segment, 11, fastening ring, X-cutter track gradient knife height difference, Y-center fish tail knife center position and segment outer diameter difference.
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: a shield machine cutterhead with arc cutting comprises a cutterhead panel 1, wherein the cross section of the cutterhead panel 1 is of an arc structure, so that the cutterhead is convenient to drill; the cutterhead panel 1 is connected with a central rotating shaft 101; the center of the cutterhead panel 1 is provided with a center fishtail cutter 4, the cutterhead panel 1 is provided with a leading tearing cutter 5, the leading tearing cutter 5 is tangential to a concentric circle of the cutterhead panel 1, all the leading tearing cutters 5 are combined into an arc-shaped cutting track, and the diameter of the arc-shaped cutting track is based on the inner diameter of a tunnel segment to be cut; the cutter 6 is arranged on the cutter head panel 1, and the cutter 6 is intersected with a concentric circle of the cutter head panel 1; the preceding tearing knife 5 and the cutting knife 6 are all arranged in a descending gradient way from the center of the cutter head panel 1 to the edge direction of the cutter head panel 1, so that the cutting knife on the cutter head can cut the duct piece in a layering way along the center outwards, and the cutting efficiency is improved.
Further, a cutter head end cover 2 is arranged at the center of the cutter head panel 1, and the rear part of the cutter head end cover 2 is connected with a center rotary shaft 101; the center fishtail cutter 4 is arranged on the cutter head end cover 2, the center fishtail cutter 4 is designed into an arc-shaped structure with a concave center, the number of contact points between the center fishtail cutter 4 and a cutting segment is not less than two, and then the center fishtail cutter 4 plays a role in centering when the shield tunneling machine is tunneling, and the shield tunneling machine is prevented from deviating from a design route at a receiving position of a connecting channel.
Working principle: when the communication channel is constructed, the shield machine drives the cutterhead panel 1 to rotate through the central rotary shaft 101, and as the cutterhead panel 1 is of an outwards convex arc structure, as shown in fig. 4, when the cutterhead panel 1 is in contact with the originating terminal face cutting segment 9, the advanced tearing knife 5 and the cutting knife 6 which are arranged in a descending gradient mode on the cutterhead panel 1 realize gradual segment cutting of the originating terminal face cutting segment 9 in a layering mode; as shown in fig. 5, when the cutterhead panel 1 contacts with the receiving end face cutting segment 10, at least two points on the center fishtail 4 contact with the receiving end face cutting segment 10 simultaneously due to the concave arrangement of the center fishtail 4, so that the center fishtail 4 has a centering effect when tunneling the shield machine, and the shield machine is prevented from deviating from a design route when tunneling the receiving end of the communication channel.
Example 2: a shield tunneling machine cutterhead with arc cutting, which comprises a cutterhead panel 1, wherein the cross section of the cutterhead panel 1 is of an arc structure, so that the cutterhead drilling construction is facilitated; the cutter head panel 1 is provided with an arc-shaped framework 102, the arc-shaped framework 102 is in a cross shape, the arc-shaped framework 102 is provided with a preceding tearing knife 5, the bottom of the preceding tearing knife 5 is connected with the arc-shaped framework 102 through a bolt, the arc-shaped framework 102 is arranged on the central rotating shaft 101, the arc-shaped framework 102 provides supporting force for the cutter head panel 1, adjacent arc-shaped frameworks 102 are connected through arc-shaped spokes 3, the arc-shaped spokes 3 improve the stability of the arc-shaped framework 102, the arc-shaped spokes 3 are provided with preceding tearing knives 5, and the bottom of the preceding tearing knife 5 is connected with the arc-shaped spokes 3 through bolts; the cutter 6 is arranged along two sides of the arc-shaped framework 102, the side cutter 7 is arranged on the outer side of the cutter 6, the bottoms of the cutter 6 and the side cutter 7 are connected with the arc-shaped framework 102 through bolts, a muck nozzle 8 is arranged on the cutterhead panel 1, a fastening ring 11 is fixedly arranged on the outer periphery of the cutterhead panel 1, and the fastening ring 11 further fastens the integral structure of the cutterhead panel 1. Other structures and operation principles are the same as those of embodiment 1.
Example 3: a shield machine cutterhead with arc cutting comprises a cutterhead panel 1, wherein the cross section of the cutterhead panel 1 is of an arc structure, so that the cutterhead is convenient to drill; the cutterhead panel 1 mainly comprises an arc-shaped framework 102, wherein the arc-shaped framework 102 is in a cross shape, and the arc-shaped framework 102 is arranged on a central rotating shaft 101. The arc-shaped framework 102 provides supporting force for the cutterhead panel 1, and the arc-shaped framework 102 provides installation space for the advanced tearing knife 5 and the cutter 6. Other structures and operation principles are the same as those of embodiment 2.
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 (9)
1. The utility model provides a shield constructs quick-witted blade disc of arc cutting, includes blade disc panel (1), its characterized in that: the cross section of the cutterhead panel (1) is of an arc-shaped structure; the cutterhead panel (1) is connected with a central rotating shaft (101); a center fish tail cutter (4) is arranged at the center of the cutter head panel (1), a leading tearing cutter (5) is arranged on the cutter head panel (1), and the leading tearing cutter (5) is tangential to concentric circles of the cutter head panel (1); a cutter (6) is arranged on the cutter head panel (1), and the cutter (6) is intersected with concentric circles of the cutter head panel (1); the prior tearing knife (5) and the prior cutting knife (6) are arranged in a gradient manner from the center of the cutterhead panel (1) to the edge direction of the cutterhead panel (1);
the center of the cutterhead panel (1) is provided with a cutterhead end cover (2), the rear part of the cutterhead end cover (2) is connected with a center rotary shaft (101), a center fishtail cutter (4) is arranged on the cutterhead end cover (2), and the center fishtail cutter (4) is designed to be of a center concave arc structure.
2. The arcuate-cut shield machine cutterhead of claim 1, wherein: an arc-shaped framework (102) is arranged on the cutterhead panel (1), and the arc-shaped framework (102) is arranged on the center rotary shaft (101).
3. The arcuate-cut shield machine cutterhead of claim 1, wherein: the cutterhead panel (1) mainly comprises an arc-shaped framework (102), and the arc-shaped framework (102) is arranged on a central rotating shaft (101).
4. The arcuate-cut shield machine cutterhead of claim 2 or 3, wherein: adjacent arc frameworks (102) are connected through arc spokes (3).
5. The arcuate-cut shield machine cutterhead of claim 4, wherein: the cutters (6) are arranged along two sides of the arc-shaped framework (102), and the bottoms of the cutters (6) are detachably connected with the arc-shaped framework (102).
6. The arcuate-cut shield machine cutterhead of claim 5, wherein: the outside of cutter (6) is equipped with limit cutter (7), and the bottom and the arc skeleton (102) of limit cutter (7) can dismantle and be connected.
7. The arcuate-cut shield machine cutterhead of claim 4, wherein: the cutterhead panel (1) is provided with a muck nozzle (8), and the outer periphery of the cutterhead panel (1) is fixedly provided with a fastening ring (11).
8. The arcuate-cut shield machine cutterhead of claim 2 or 3, wherein: the arc-shaped framework (102) is provided with a preceding tearing knife (5), and the bottom of the preceding tearing knife (5) is detachably connected with the arc-shaped framework (102).
9. The arcuate-cut shield machine cutterhead of claim 4, wherein: the arc-shaped spokes (3) are provided with a preceding tearing knife (5), and the bottom of the preceding tearing knife (5) is detachably connected with the arc-shaped spokes (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811135253.4A CN109139028B (en) | 2018-09-27 | 2018-09-27 | Arc-cutting shield tunneling machine cutterhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811135253.4A CN109139028B (en) | 2018-09-27 | 2018-09-27 | Arc-cutting shield tunneling machine cutterhead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109139028A CN109139028A (en) | 2019-01-04 |
| CN109139028B true CN109139028B (en) | 2024-03-15 |
Family
ID=64813177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811135253.4A Active CN109139028B (en) | 2018-09-27 | 2018-09-27 | Arc-cutting shield tunneling machine cutterhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139028B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909847A (en) * | 2019-03-18 | 2019-06-21 | 上海隧道工程有限公司 | For being ground the grinding attachment of concrete pipe sheet |
| CN110485497A (en) * | 2019-08-30 | 2019-11-22 | 广东科朗管道修复技术有限公司 | Rotary cutting head |
| CN110645007B (en) * | 2019-10-17 | 2021-11-05 | 中建市政工程有限公司 | Shield machine with trimming cutters |
| CN113982609A (en) * | 2021-10-22 | 2022-01-28 | 无锡中铁城轨装备有限公司 | Spherical drill bit type cutter head structure of shield tunneling machine and excavation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3705295B1 (en) * | 2004-09-29 | 2005-10-12 | 石川島播磨重工業株式会社 | Cutter for shield machine and cutter for branch shield |
| CN201448113U (en) * | 2009-09-02 | 2010-05-05 | 中铁一局集团有限公司 | Subway communication passage positive and negative arc-shaped movable grid extrusion water-washed type roof pipe tunneling machine |
| CN103590837A (en) * | 2013-11-20 | 2014-02-19 | 天津大学 | Eccentric cutter type shield machine cutterhead |
| CN206753601U (en) * | 2017-05-24 | 2017-12-15 | 中隧隧盾国际建设工程有限公司 | Cutter head of shield machine for sand soft rock stratum |
| JP2018009322A (en) * | 2016-07-12 | 2018-01-18 | Ｊｉｍテクノロジー株式会社 | Shield construction method with upward irregular cross section |
| CN208918540U (en) * | 2018-09-27 | 2019-05-31 | 中铁工程装备集团有限公司 | A kind of cutter head of shield machine of arc milling |
-
2018
- 2018-09-27 CN CN201811135253.4A patent/CN109139028B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3705295B1 (en) * | 2004-09-29 | 2005-10-12 | 石川島播磨重工業株式会社 | Cutter for shield machine and cutter for branch shield |
| CN201448113U (en) * | 2009-09-02 | 2010-05-05 | 中铁一局集团有限公司 | Subway communication passage positive and negative arc-shaped movable grid extrusion water-washed type roof pipe tunneling machine |
| CN103590837A (en) * | 2013-11-20 | 2014-02-19 | 天津大学 | Eccentric cutter type shield machine cutterhead |
| JP2018009322A (en) * | 2016-07-12 | 2018-01-18 | Ｊｉｍテクノロジー株式会社 | Shield construction method with upward irregular cross section |
| CN206753601U (en) * | 2017-05-24 | 2017-12-15 | 中隧隧盾国际建设工程有限公司 | Cutter head of shield machine for sand soft rock stratum |
| CN208918540U (en) * | 2018-09-27 | 2019-05-31 | 中铁工程装备集团有限公司 | A kind of cutter head of shield machine of arc milling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109139028A (en) | 2019-01-04 |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20221215 Address after: 450016 No. 99 Sixth Avenue, Zhengzhou economic and Technological Development Zone, Henan Applicant after: CHINA RAILWAY ENGINEERING EQUIPMENT GROUP Co.,Ltd. Applicant after: Ningbo Rail Transit Group Co.,Ltd. Address before: 450016 No. 99 Sixth Avenue, Zhengzhou economic and Technological Development Zone, Henan Applicant before: CHINA RAILWAY ENGINEERING EQUIPMENT GROUP Co.,Ltd. |
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