CN202832555U - Improved first knife for shield machine - Google Patents
Improved first knife for shield machine Download PDFInfo
- Publication number
- CN202832555U CN202832555U CN 201220237061 CN201220237061U CN202832555U CN 202832555 U CN202832555 U CN 202832555U CN 201220237061 CN201220237061 CN 201220237061 CN 201220237061 U CN201220237061 U CN 201220237061U CN 202832555 U CN202832555 U CN 202832555U
- Authority
- CN
- China
- Prior art keywords
- hard alloy
- alloy block
- knife
- large hard
- shield machine
- Prior art date
- 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 - Fee Related
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- 239000000956 alloy Substances 0.000 claims abstract description 50
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 50
- 238000005476 soldering Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract description 4
- 238000005219 brazing Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- 239000011324 bead Substances 0.000 abstract 1
- 239000004575 stone Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Images
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses an improved first knife for a shield machine and belongs to the technical field of tools for shield machines. The improved first knife for the shield machine is a quick-wear part of the shield machine, and mainly performs the function of trenching and tearing. A tool structure capable of protecting a left large hard alloy block 1 and a right large hard alloy block 5 is provided, and is capable of being used in geological layers of sand and gravel. The tool structure comprises the left large hard alloy block 1 and the right large hard alloy block 5, a small hard alloy block 2 and a wearing layer 3, the improved first knife for the shield machine further comprises a first knife body composed of a left end body 6, a right end body 7 and an intermediate tool body 4, the left large hard alloy block 1 and the right large hard alloy block 5 are installed inside wide grooves at two sides of the first tool body in a brazing mode. The small hard alloy block 2 is installed inside a narrow groove in the middle of the first knife body, and the wearing layer 3 is bead welded on the surface of the first knife body. Due to the structure, the left large hard alloy block 1 and the right large hard alloy block 5 mainly play a pushing and rolling role of pebbles, the improved first knife for the shield machine does not impact the pebbles directly and is not prone to breaking, and therefore the integrated service life of the tool is increased.
Description
Technical field
Improved prior knife for shield machine belongs to shield machine and uses the cutter field, is a kind of consumable accessory of shield machine, plays an important role in construction.
Background technology
Shield machine, be widely used in the engineerings such as tunnel piercing, on the corresponding tool rest of its rotating cutter-head dual-pilot cutter is installed, center cutter, scraper, hobboing cutter etc., these cutter integrations of operation, to rock, soil layer, sand stone layer etc. are ditched and are torn, rolloff, fragmentation and scraping, wherein dual-pilot cutter mainly play a part the trench digging tear, the cutter hub of present dual-pilot cutter is the same with middle cutter hub on the improved prior knife for shield machine, there are not left end body and right-hand member body to divide, left large hard alloy blocks and right large carbide alloy block brazing are on the open type groove of cutter hub, in the construction its side directly with sand stone layer in cobble clash into, when the cobble body is larger, easily break, cutter life is short.
The utility model content
Improved prior knife for shield machine, a kind of structure of the cutter body that the large hard alloy blocks of the large hard alloy blocks in a left side and the right side is had protective effect is provided, can use and make the cutting-tool's used life increase at sand gravel geology layer or other geological stratification, it comprises left large hard alloy blocks and right large hard alloy blocks, little hard alloy blocks, wearing layer, also comprise the in advance cutter hub that is formed by left end body and right-hand member body and middle cutter hub, the large hard alloy blocks in a left side and right large hard alloy blocks are installed respectively soldering in the wide groove of cutter hub of going ahead of the rest, little hard alloy blocks is installed in the narrow groove of soldering in the middle of the cutter hub of going ahead of the rest, cutter hub is left in advance, the right side is provided with the wide groove of the left large hard alloy blocks of soldering and right large hard alloy blocks, and the centre is provided with the narrow groove of the little hard alloy blocks of soldering; The wearing layer built-up welding is on the surface of cutter hub of going ahead of the rest.
After adopting said structure, left greatly hard alloy blocks and right large hard alloy blocks because the buffer protection of left end body and right-hand member body is arranged, mainly work the effect of rolling that pushes away to cobble when work, and not direct and cobble bump is difficult for breaking, and the whole service life of cutter has had increase.
Description of drawings
Figure of description is the structural representation of improved prior knife for shield machine, and wherein Fig. 1 is front view, and Fig. 2 is the left view of Fig. 1, and Fig. 3 is the top view of Fig. 1.
In the accompanying drawing, 1 is left large hard alloy blocks, and 2 is little hard alloy blocks, and 3 is wearing layer, and 4 is middle cutter hub, and 5 is right large hard alloy blocks, and 6 is the left end body, and 7 is the right-hand member body.
The specific embodiment
Embodiment to improved prior knife for shield machine elaborates below in conjunction with accompanying drawing.
Such as Fig. 1, Fig. 2, shown in Figure 3, improved prior knife for shield machine comprises left large hard alloy blocks 1 and right large hard alloy blocks 5, little hard alloy blocks 2, wearing layer 3, also comprises the cutter hub of going ahead of the rest that is comprised of left end body 6 and right-hand member body 7 and middle cutter hub 4; The left and right left large hard alloy blocks 1 of soldering and the right greatly wide groove of hard alloy blocks 5 of being provided with of the cutter hub of going ahead of the rest, the centre is provided with the narrow groove of the little hard alloy blocks 2 of soldering; Left greatly hard alloy blocks 1 is installed soldering in the wide groove of cutter hub of going ahead of the rest with right greatly hard alloy blocks 5, and 3 little hard alloy blocks 2 are installed respectively in the narrow groove of soldering in the middle of the cutter hub of going ahead of the rest, and wearing layer 3 built-up welding are on the surface of cutter hub of going ahead of the rest; After adopting said structure, when cutter runs into bowlder stone in the construction, bowlder stone clashes into first left end body 6 or right-hand member body 7, just contact with the large hard alloy blocks 1 in a left side or right large hard alloy blocks 5 afterwards, left large like this hard alloy blocks 1 or right large 5 pairs of cobbles of hard alloy blocks mainly play and push away, roll effect, direct and cobble clashes into, and is difficult for breaking, and the whole service life of cutter has had increase.
Claims (2)
1. improved prior knife for shield machine comprises left large hard alloy blocks (1) and right large hard alloy blocks (5), little hard alloy blocks (2), wearing layer (3), also comprises the cutter hub of going ahead of the rest that is comprised of left end body (6) and right-hand member body (7) and middle cutter hub (4); Left large hard alloy blocks (1) and right large hard alloy blocks (5) are installed respectively soldering in the wide groove of cutter hub of going ahead of the rest, little hard alloy blocks (2) is installed soldering in the narrow groove of cutter hub of going ahead of the rest, it is characterized in that: the left and right wide groove that is provided with the left large hard alloy blocks (1) of soldering and right large hard alloy blocks (5) of described in advance cutter hub, the centre is provided with the narrow groove of the little hard alloy blocks of soldering (2).
2. improved prior knife for shield machine according to claim 1 is characterized in that: built-up welding has wearing layer (3) on the surface of described in advance cutter hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237061 CN202832555U (en) | 2012-05-21 | 2012-05-21 | Improved first knife for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237061 CN202832555U (en) | 2012-05-21 | 2012-05-21 | Improved first knife for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832555U true CN202832555U (en) | 2013-03-27 |
Family
ID=47944287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220237061 Expired - Fee Related CN202832555U (en) | 2012-05-21 | 2012-05-21 | Improved first knife for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670430A (en) * | 2013-11-29 | 2014-03-26 | 北京交通大学 | Improving method for shield cutters |
-
2012
- 2012-05-21 CN CN 201220237061 patent/CN202832555U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670430A (en) * | 2013-11-29 | 2014-03-26 | 北京交通大学 | Improving method for shield cutters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190107 Address after: 2000 High-tech Industrial Development Zone, Liaocheng High-tech Zone, Shandong Province, No. 166, South Hangzhou Road and South Huangshan Road Patentee after: Shandong easy engineering tools Co., Ltd. Address before: 252000 Jiahe Road, Jiaming Economic Development Zone, Liaocheng City, Shandong Province Patentee before: Zhang Chuanzhou |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |