CN202370530U - Semi-open coreless shield cutter head - Google Patents
Semi-open coreless shield cutter head Download PDFInfo
- Publication number
- CN202370530U CN202370530U CN2011202537893U CN201120253789U CN202370530U CN 202370530 U CN202370530 U CN 202370530U CN 2011202537893 U CN2011202537893 U CN 2011202537893U CN 201120253789 U CN201120253789 U CN 201120253789U CN 202370530 U CN202370530 U CN 202370530U
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- CN
- China
- Prior art keywords
- cutter head
- semi
- open
- cutterhead
- shield
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a semi-open coreless shield cutter head which is equipped in front of a chamber wall of a shield machine. The semi-open coreless shield cutter head has a spoke type structure. The center of the semi-open coreless shield cutter head is provided with a larger opening for facilitating entering of a large amount of soil and stone. The front end of the cutter head is provided with a plurality of non-full-length type spokes which are uniformly arranged at the front end of the cutter head. One end of each spoke, which is next to outside of the cutter head, is provided with a profiling knife; and the other end which is next to the center of the cutter head is provided with a shrinkage type cutting knife. Each spoke is connected with the chamber wall of the shield machine through a cutter head bracket. Compared with the prior art, the semi-open coreless shield cutter head has the following advantages: high firmness, high strength, large rigidity and high wearing resisting degree. The aperture ratio of the cutter head can reach 88%. The coreless design of the central opening of the cutter head causes a smooth channel through which the slag soil enters a soil chamber. Not only can stratum with low self-standing capability be adapted for soil pressing balancing type tunneling, but also the semi-open coreless shield cutter head can be adapted for limestone stratum, viscous stratum, sandstone stratum and the soil layer with high self-standing capability. The semi-open coreless shield cutter head performs a semi-open type tunneling mode with low soil pressure or even no soil pressure.
Description
Technical field
The utility model relates to a kind of shield cutter, especially relates to a kind of shield cutter of not being in the mood for of semi-open-type.
Background technology
At present, the cutterhead aperture opening ratio of panel type cutting cutterhead shield excavation machine is less, when running into sand and clay mixing stratum; The central area of cutterhead is reason such as not smooth because the soil body flows, and is very easy to form mud cake in the centre of cutterhead, causes the tool wear on the cutterhead serious; And rough sledding such as have at work that the front soil disturbance is big, the shield driving resistance is excessive and cutterhead rotary cutting moment of torsion is excessive in order to overcome the above problems, generally adopts auxiliary soil body ameliorative measures such as positive water filling or foam; But mud cake is in case form; It is bigger to eliminate difficulty fully, simultaneously, relies on these soil body ameliorative measures; Need to drop into corresponding apparatus and improvement material, reduced efficiency of construction and increased construction cost greatly.
The utility model content
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence a kind of shield cutter with firm, that intensity is high, rigidity is big, rub proofness is high semi-open-type to be provided.
The purpose of the utility model can realize through following technical scheme:
A kind of semi-open-type be not in the mood for shield cutter, this cutterhead is installed in the front portion of the bulkhead of shield machine, it is characterized in that; This cutterhead is the spoke shape structure, and the center is provided with opening and forms the passage that buries more greatly, and the front end of cutterhead is provided with several non-full-length spokes; Be evenly distributed on the front end of cutterhead; End near the cutterhead outside of each blade fastening devices is respectively arranged with imitation-shaped knife, is respectively equipped with the formula bite that contracts near the end at cutterhead center, and spoke is connected with the bulkhead of shield machine through the cutterhead bracket.
Described non-full-length spoke is provided with 4.
The cutterhead center non-structure thing of described shield machine, central space is big, and it is unimpeded to be convenient to the husky inflow of soil.
Described cutterhead bracket is provided with the center stirring rod near a side at cutterhead center, and arranged outside has stirring rod.
The outer face down bonding of described center stirring rod is provided with alloy material layer.
The bottom of described Tu Cang is provided with the broken oil cylinder of controlling the formula bite that contracts.
Compared with prior art; The utility model is convenient to the layout of cutter and stressed, runs through the overall structure structural beams, has advantage firm, that intensity is high, rigidity is big, rub proofness is high; The cutterhead aperture opening ratio can reach 88%, and the particular design of cutterhead central opening makes quarrel soil get into the passage smoothness of Tu Cang; The Tu Cang space is bigger, and the center obstructed thing is few, can effectively increase additive and the native mixing efficiency of quarrel, and earth pressure balanced driving is carried out on the stratum that can adapt to the independence difference; Also can adapt to simultaneously the stone stratum of wafing greatly, gummy formation, sandstone formations and at the good soil layer of independence, the semi-open-type that hang down soil pressure or even does not have a soil pressure tunnels pattern.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the mounting structure sketch map of the utility model.
Among the figure 1 for imitation-shaped knife, 2 for stirring rod, 3 for fixing stirring rod, 4 for People's Bank of China's lock, 5 for the formula bite that contracts, 6 for the center stirring rod, 7 for broken oil cylinder, 8 for blade fastening devices, 9 be that cutterhead bracket, 10 is a shield machine.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
A kind of semi-open-type be not in the mood for shield cutter, its structure is shown in Fig. 1～2, this cutterhead is installed in the front portion of the bulkhead of shield machine 10, cutterhead is an outer ring spoke shape structure, the center is provided with opening, it is smooth that the design of cutterhead central opening makes quarrel soil get into the passage of Tu Cang; The Tu Cang space is bigger, and the center obstructed thing is few, can effectively increase additive and the native mixing efficiency of quarrel.The front end of cutterhead is provided with several (four) blade fastening devicess 8; Be evenly distributed on the front end of cutterhead; End near the cutterhead outside of blade fastening devices 8 is provided with imitation-shaped knife 1, and reaming usefulness when being used for shield machine and turning is provided with the formula bite 5 that contracts near the end at cutterhead center; Be used for the soil body of turning centre part, the blade fastening devices is connected through the bulkhead of cutterhead bracket 9 with shield machine 10.Fixedly stirring rod 3 is installed on the bulkhead of shield machine 10.The rear portion of bulkhead is provided with humanoid lock 4, as constructor's access path.Cutterhead bracket 9 is provided with center stirring rod 6 near a side at cutterhead center; Arranged outside has stirring rod 2; Can be along with cutterhead rotates together; The fixedly stirring rod that is aided with on the bulkhead can play the native function of abundant stirring quarrel, and interpolation material (adding mud, water, bubble) that is infused on the excavation face or in the native storehouse and the soil body that cuts are stirred in native storehouse fully, improves the plastic fluidity and the sealing property of the soil body.Stirring rod 2 is mainly used in the soil body that stirs in the native storehouse, and the outside plating of center stirring rod 6 is provided with alloy material layer, can realize simultaneously preventing to form mud cake from the cutting of not cutting the soil body and the stirring action of the entering of cutterhead centre.The cutterhead sidepiece is provided with the broken oil cylinder 7 of controlling the formula bite 5 that contracts, is positioned at the bottom of Tu Cang, the both sides of screw machine volume Tu Kou; Completion is to the fragmentation work of the bulk ground of entering Tu Cang; Make things convenient for screw machine to be unearthed, can be used for the devices such as oil cylinder of broken big erratic boulder, can carry out damaged operation in case of necessity.
Claims (5)
- A semi-open-type be not in the mood for shield cutter, this cutterhead is installed in the front portion of the bulkhead of shield machine, it is characterized in that; This cutterhead is the spoke shape structure, and the center is provided with opening and forms the passage that buries more greatly, and the front end of cutterhead is provided with several non-full-length spokes; Be evenly distributed on the front end of cutterhead; End near the cutterhead outside of each blade fastening devices is respectively arranged with imitation-shaped knife, is respectively equipped with the formula bite that contracts near the end at cutterhead center, and spoke is connected with the bulkhead of shield machine through the cutterhead bracket.
- A kind of semi-open-type according to claim 1 be not in the mood for shield cutter, it is characterized in that described non-full-length spoke is provided with 4.
- A kind of semi-open-type according to claim 1 be not in the mood for shield cutter, it is characterized in that described cutterhead bracket is provided with the center stirring rod near a side at cutterhead center, arranged outside has stirring rod.
- A kind of semi-open-type according to claim 3 be not in the mood for shield cutter, it is characterized in that the outer face down bonding of described center stirring rod is provided with alloy material layer.
- A kind of semi-open-type according to claim 1 be not in the mood for shield cutter, it is characterized in that the bottom of described Tu Cang is provided with broken oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202537893U CN202370530U (en) | 2011-07-18 | 2011-07-18 | Semi-open coreless shield cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202537893U CN202370530U (en) | 2011-07-18 | 2011-07-18 | Semi-open coreless shield cutter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370530U true CN202370530U (en) | 2012-08-08 |
Family
ID=46594237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202537893U Expired - Lifetime CN202370530U (en) | 2011-07-18 | 2011-07-18 | Semi-open coreless shield cutter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370530U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670422A (en) * | 2013-06-18 | 2014-03-26 | 江苏银旭隧道机械有限公司 | Coring shield mechanism of tunnel boring machine |
| CN104033158A (en) * | 2014-06-22 | 2014-09-10 | 无锡市翱宇特新科技发展有限公司 | Soil body stirring device |
| CN104278994A (en) * | 2013-07-01 | 2015-01-14 | 宏润建设集团股份有限公司 | Shield machine cutterhead adaptive to soft soil layer |
| CN108729920A (en) * | 2017-04-20 | 2018-11-02 | 株木建设株式会社 | Tunnel piercing device and tunnel piercing method |
-
2011
- 2011-07-18 CN CN2011202537893U patent/CN202370530U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670422A (en) * | 2013-06-18 | 2014-03-26 | 江苏银旭隧道机械有限公司 | Coring shield mechanism of tunnel boring machine |
| CN104278994A (en) * | 2013-07-01 | 2015-01-14 | 宏润建设集团股份有限公司 | Shield machine cutterhead adaptive to soft soil layer |
| CN104033158A (en) * | 2014-06-22 | 2014-09-10 | 无锡市翱宇特新科技发展有限公司 | Soil body stirring device |
| CN108729920A (en) * | 2017-04-20 | 2018-11-02 | 株木建设株式会社 | Tunnel piercing device and tunnel piercing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |