CN203285443U - Shield cutterhead for stratum enriched with large-particle-sized boulder - Google Patents
Shield cutterhead for stratum enriched with large-particle-sized boulder Download PDFInfo
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- CN203285443U CN203285443U CN2013200167941U CN201320016794U CN203285443U CN 203285443 U CN203285443 U CN 203285443U CN 2013200167941 U CN2013200167941 U CN 2013200167941U CN 201320016794 U CN201320016794 U CN 201320016794U CN 203285443 U CN203285443 U CN 203285443U
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- cutter
- cutterhead body
- shield
- cutterhead
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Abstract
Provided is a shield cutterhead for stratum enriched with large-particle-sized boulders, comprising a cutterhead body and a cutter. A circular cutterhead body structure is provided with four main rib plates which are disposed at the center of the cutterhead body and vertically intersect with each other, and a main rib plate disc face is formed on the upper surfaces of the four main rib plates. Four spokes which vertically intersect with each other are disposed at the center of the cutterhead body, and are arranged at intervals in a manner of having an angle of 45 DEG with each of the four main rib plates. The main rib plates are connected to the spokes through steel gratings, and are welded to the peripheral ring-shaped steel plate of the cutterhead body, forming a panel type shield cutterhead. A heavy type tearing cutter, a disc cutter and a cutterhead panel reinforcing protection cutter are fixed to the upper part of the main rib plate disc. The heavy type tearing cutter and a scraper are fixed to the upper part of the spoke. A fish-tail cutter or a duplex disc cutter is disposed at the center of the cutterhead body. The outer side of the peripheral ring-shaped steel plate of the cutterhead body is welded to a bar-shaped reinforcing protection cutter. The outer surface of the cutterhead body is paved with and welded to high-strength chromium carbide wear resistant steel plates.
Description
Technical field
The utility model relates to a kind of stratum shield cutter, particularly tunnels in the compound stratum of the large particle diameter erratic boulder of enrichment, and is convenient for changing the shield cutter of cutter.
Background technology
At present, adopt shield method to carry out the long distance tunnel tunneling construction in the large particle diameter erratic boulder of enrichment stratum, there is no successful case, and construction of tunnel is positioned at the urban rivers and lakes below in addition, in stratum, water content is abundant, and constructing tunnel faces very big difficulty.Usually the cut and cover method that adopts and hidden construction process construction are large on the surrounding enviroment impact, cost is high, and construction safety risk is large, long in time limit etc. can not meet engineering design and construction requirement.General shield cutter and cutter can't broken enrichment the large particle diameter erratic boulder of high strength, large particle diameter erratic boulder or the boulder of normal conditions to negligible amounts, after all taking other supplementary means with its fragmentation, then go Shield Construction Method Used.
Summary of the invention
The utility model improves for the problem that above-mentioned prior art exists, be that the technical problems to be solved in the utility model is to provide a kind of shield cutter for the large particle diameter erratic boulder of enrichment stratum in boulder bed and the mutual compound stratum of boulder bed, realize long distance, low-cost, shield method tunneling construction safely and efficiently.
For solving the problems of the technologies described above, a kind of shield cutter for the large particle diameter erratic boulder of enrichment stratum of the present utility model, comprise the setting of cutterhead body and cutter.On circular cutterhead body construction, four main floors in the orthogonal intersection in cutterhead body center are set, the upper surface of four main floors forms the main floor card; Four orthogonal intersections in the center at the cutterhead body are set simultaneously and with four main floors, are respectively 45 ° of spaced apart spokes; Main floor and spoke interconnect by steel grating, and with the outer border annular Plate Welding of cutterhead body, form the panel type shield cutter; Be fixed with heavy tearing cutter, disk cutter and cutter head panel enhanced protection cutter above the main floor card; Be fixed with heavy tearing cutter and scraper above spoke; Fish tail cutter or duplex disk cutter are installed in center at the cutterhead body.
Welded disc surface strengthening protection cutter above described cutterhead body main floor card, at the described outer border of described cutterhead body annular steel plate outside welding bar shaped enhanced protection cutter, effectively to reduce the wearing and tearing of stratum dregs to cutterhead.
Described heavy tearing cutter and described disk cutter is interchangeable installs and uses, adapt to the compound stratum Shield Construction Method Used needs of various complexity.Heavy tearing cutter and disk cutter are used in conjunction with, by knocking, the comprehensive function power such as extruding realizes the fragmentation of large particle diameter erratic boulder.Except the enhanced protection cutter adopts welding; scraper, disk cutter and heavy tearing cutter all adopt back loading type bolt connection mode; can directly carry out cutter changing in shield structure soil storehouse, facilitate the tool changing work in the engineering construction, obviously improve engineering integral construction efficiency.
The external surface of described cutterhead body is paved with and welds high-strength chromium carbide wear-resisting steel plate, for reducing the wear intensity of cutterhead body in the mining process of the large particle diameter erratic boulder of enrichment stratum.
The height of the scraper on described cutterhead body, disk cutter, enhanced protection cutter and heavy tearing cutter arranges respectively from low to high, thereby form the multi-level cutter of multi-trace, arranges, realizes the construction of shield structure long distance driving.
The beneficial effect that the utlity model has: the design of the multi-trace multi-level configuration cutter of this shield cutter, can be by knocking, the effectively broken large particle diameter erratic boulder of comprehensive function power such as extruding, realize the smooth tunneling construction of shield structure.The cutterhead body completely spreads high-strength chromium carbide wearing plate, and configuration cutterhead enhanced protection cutter, has effectively reduced the wearing and tearing of stratum dregs to cutterhead, has realized that the shield cutter cutter is at the large particle diameter erratic boulder of enrichment stratum middle and long distance tunneling construction.Do not adopt other as soil stabilization, manually the ancillary method such as abolish in whole constructing tunnel, effectively reduce construction cost, shorten construction period.The substitute mode of shield cutter is mainly by the conventional or tool changing that opens a position of pressurizeing, and cutter changing and the operation of cutterhead wearing plate REPAIR WELDING are carried out by the less tool changing active well of floor space in indivedual special locations, guarantee that operating personnel's tool changing is safe and reliable.In engineering construction, the tool changing active well also can reduce construction cost with the tunnel connection channel construction in conjunction with carrying out, and improves engineering integral construction efficiency.
Description of drawings:
Fig. 1 shield cutter structure and cutter configuration schematic diagram;
Fig. 2 is protection knife structure schematic diagram;
Fig. 3 is the cross-sectional view of heavy tearing cutter;
Fig. 4 is the cross-sectional view of disk cutter;
Fig. 5 is cutter head panel enhanced protection cutter;
Fig. 6 is the side-looking structural representation of welding bar shaped enhanced protection cutter on the steel plate of the outer border of cutterhead;
Fig. 7 is disk cutter bolt fastening structure schematic diagram;
Fig. 8 is heavy tearing cutter back loading type bolt fastening structure schematic diagram.
The specific embodiment:
Embodiment 1: as shown in Fig. 1-8, be used for the large particle diameter erratic boulder of enrichment stratum shield cutter and comprise cutterhead body and cutter, circular cutterhead body 1 top arranges the main floor 2 of four orthogonal intersections in the center at the cutterhead body, article four, main floor 2 upper surfaces form the main floor card, and main floor 2 forms the panel type shield cutter with outer border annular steel plate 6 welding of cutterhead body 1; Simultaneously four orthogonal intersections in the center at cutterhead body 1 are set and with four main floors, are respectively 45 ° of spaced apart spokes 3 above cutterhead body 1, main floor 2 interconnects by steel grating 5 with spoke 3, be fixed with heavy tearing cutter 8, disk cutter 9 and cutter head panel enhanced protection cutter 13 above the main floor card, be fixed with heavy tearing cutter 8 and scraper 10 above spoke 3; Fish tail cutter 11 is installed in center at cutterhead body 1.
Embodiment 2: as shown in Fig. 1-8, in the center of cutterhead body 1, duplex disk cutter 12 is installed, all the other as described in Example 1.
Embodiment 3: as shown in Fig. 1-8, welding enhanced protection cutter 13 above cutterhead main floor card, at the outer border of cutterhead body annular steel plate 6 outside welding bar shaped enhanced protection cuttves 14.The height of the scraper 10 on cutterhead body 1, disk cutter 9, enhanced protection cutter 13 and heavy tearing cutter 8 arranges respectively from low to high; thereby forming the multi-level cutter of multi-trace arranges; except enhanced protection cutter 13 adopts welding; scraper 10, disk cutter 9, heavy tearing cutter 8 all adopt back loading type bolt connection mode; can directly carry out cutter changing in shield structure soil storehouse; the external surface of cutterhead body 1 is paved with and welds high-strength chromium carbide wear-resisting steel plate 15, and all the other as described in example 1 above.
Embodiment 4: as shown in Fig. 1-8,, at conglomerate and the boulder bed of the large particle diameter erratic boulder of enrichment, carry out Shield Construction Method Used under two kinds of mutual compound geological conditionss that alternate in stratum.When the shield structure is in the conglomerate stratum fully, this shield cutter installs 18 disk cutter 9 at cutterhead body 1 near the standard girff 7 in the 1.0m scope of neighboring, the heavy tearing cutter 8 of the interior installation of standard girff 7 near inner ring, utilize the broken large particle diameter erratic boulder of high-efficient cutting effect of 9 pairs of stable rock stratum of disk cutter, complete shield driving.When shield driving to conglomerate and boulder bed switching phase, and before the shield structure all enters boulder bed, keep cutterhead body 1 outmost turns 10 disk cutter 9 by the tool changing that opens a position, all the other positions are replaced by heavy tearing cutter 8, utilize knocking of heavy tearing cutter 8, and the comprehensive function power such as the relative rolling extrusion of erratic boulder in boulder bed, reach the effect of broken large particle diameter erratic boulder.
The cutter height setting that cutterhead body 1 is installed is divided into four layers, is respectively scraper 10, disk cutter 9, enhanced protection cutter 13 and heavy tearing cutter 8 from low to high.Various cutters are except completing self function; also play the effect of mutual protection between cutter,, like this by the successively wearing and tearing of cutter, improved the driving mileage of shield structure every dise knife tool in the large particle diameter erratic boulder of enrichment stratum; reduce number of changing knife, improved tunneling construction efficiency.
When chromium carbide wearing plate 15 serious wear of the enhanced protection cutter 13 of welding on cutterhead body 1 and paving weldering; can be by the little circular working shaft of floor space of excavation 2.0m diameter; or in conjunction with the construction shafts such as service channel between shield tunnel; weld and change operation, all the other as described in example 1 above.
Obviously, above-described embodiment of the present utility model is only for the utility model example clearly is described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And these belong to apparent variation or the change that spirit of the present utility model extended out and still are among protection scope of the present invention.
Claims (5)
1. a shield cutter that is used for the large particle diameter erratic boulder of enrichment stratum, is characterized in that: on circular cutterhead body construction, four main floors in the orthogonal intersection in cutterhead body center are set, described four main floor upper surfaces formation main floor card; Four orthogonal intersections in the center at the cutterhead body are set simultaneously and with four main floors, are respectively 45 ° of spaced apart spokes; Main floor and spoke interconnect by steel grating, and with the outer border annular Plate Welding of cutterhead body, form the panel type shield cutter; Be fixed with heavy tearing cutter, disk cutter and cutter head panel enhanced protection cutter above the main floor card; Be fixed with heavy tearing cutter and scraper above spoke; Fish tail cutter or duplex disk cutter are installed in center at the cutterhead body.
2. shield cutter according to claim 1, is characterized in that: welded disc surface strengthening protection cutter above described cutterhead body main floor card, welding bar shaped enhanced protection cutter outside the annular steel plate of the described outer border of described cutterhead body.
3. shield cutter according to claim 1 and 2; it is characterized in that: described heavy tearing cutter and described disk cutter is interchangeable installs and uses; except described enhanced protection cutter adopts welding; described scraper, disk cutter and heavy tearing cutter all adopt back loading type bolt connection mode, can directly carry out cutter changing in shield structure soil storehouse.
4. shield cutter according to claim 1 and 2, it is characterized in that: the external surface of described cutterhead body is paved with and welds high-strength chromium carbide wear-resisting steel plate.
5. shield cutter according to claim 1 and 2 is characterized in that: the height of the described scraper on described cutterhead body, disk cutter, enhanced protection cutter and heavy tearing cutter arranges respectively from low to high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200167941U CN203285443U (en) | 2013-01-11 | 2013-01-11 | Shield cutterhead for stratum enriched with large-particle-sized boulder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200167941U CN203285443U (en) | 2013-01-11 | 2013-01-11 | Shield cutterhead for stratum enriched with large-particle-sized boulder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285443U true CN203285443U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200167941U Expired - Fee Related CN203285443U (en) | 2013-01-11 | 2013-01-11 | Shield cutterhead for stratum enriched with large-particle-sized boulder |
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| Country | Link |
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| CN (1) | CN203285443U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075159A (en) * | 2013-01-11 | 2013-05-01 | 北京城建集团有限责任公司 | Shield tunneling machine cutter disc used for enriching large-particle-size boulder stratum |
| CN104060995A (en) * | 2014-07-02 | 2014-09-24 | 北京城建设计发展集团股份有限公司 | Shield cutterhead structure for uneven mutual-penetration composite rock stratum |
| CN104060996A (en) * | 2014-07-03 | 2014-09-24 | 北京城建设计发展集团股份有限公司 | Combined shield cutter disk for mutual intrusion composite rock strata with uneven hardness |
| CN106050252A (en) * | 2016-08-10 | 2016-10-26 | 中铁十六局集团北京轨道交通工程建设有限公司 | Shield tunneling machine cutterhead suitable for expansible old clay |
-
2013
- 2013-01-11 CN CN2013200167941U patent/CN203285443U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075159A (en) * | 2013-01-11 | 2013-05-01 | 北京城建集团有限责任公司 | Shield tunneling machine cutter disc used for enriching large-particle-size boulder stratum |
| CN104060995A (en) * | 2014-07-02 | 2014-09-24 | 北京城建设计发展集团股份有限公司 | Shield cutterhead structure for uneven mutual-penetration composite rock stratum |
| CN104060996A (en) * | 2014-07-03 | 2014-09-24 | 北京城建设计发展集团股份有限公司 | Combined shield cutter disk for mutual intrusion composite rock strata with uneven hardness |
| CN106050252A (en) * | 2016-08-10 | 2016-10-26 | 中铁十六局集团北京轨道交通工程建设有限公司 | Shield tunneling machine cutterhead suitable for expansible old clay |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20180111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |