CN201671635U - Tearing cutter - Google Patents
Tearing cutter Download PDFInfo
- Publication number
- CN201671635U CN201671635U CN2010202130990U CN201020213099U CN201671635U CN 201671635 U CN201671635 U CN 201671635U CN 2010202130990 U CN2010202130990 U CN 2010202130990U CN 201020213099 U CN201020213099 U CN 201020213099U CN 201671635 U CN201671635 U CN 201671635U
- Authority
- CN
- China
- Prior art keywords
- cutter
- row
- alloy teeth
- carbide button
- tearing
- 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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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a tearing cutter, which comprises a cutter seat, a cutter shaft, a cutter body and alloy teeth fixed on the cutter body. The cutter seat is sleeved on the cutter shaft. The alloy teeth comprise a first row of alloy teeth and a second row of alloy teeth. The second row of alloy teeth are blocky structure. The first row of alloy teeth are buried and welded on the cutter body. The first row of alloy teeth are arranged in the left and right directions of the cutter body to arrange in three rows. The surface welding of the first row of alloy teeth of the tearing cutter is modified into the buried welding. The sharp tooth shaped second row of alloy teeth are modified into the blocky structure, thereby increasing the stressed area, preventing the alloy teeth from falling off and prolonging the useful life of the cutter.
Description
Technical field
The utility model relates to the cutter of tearing that uses on a kind of shield machine.
Background technology
Railway underground diameter line 2 mark engineering shield tunnel total length 2026.5m in Beijing adopt the mud water pressurization equilibration shield machine construction of a brand-new φ 12.04m.According to former design scheme, on cutter head of shield machine design and installation 30 heavy type torn cutter, these main effects of tearing cutter are earlier harder stratum to be become flexible by tearing cutter in the shield driving process, by cutting knife the stratum are cut again.Tear cutter and be furnished with double-deck carbon tungsten alloy cutter tooth to improve the abrasion resistance of cutter, the height that can wear and tear is 64mm, and after first row's tool wear, second row's cutter can replace first row's cutter to continue to play a role.
Tear in the cutter existing, each carbide button all is directly to be welded on the tool rest, in use, the carbide button obscission often takes place, and when checking through 60 meters of shield machine drivings, the carbide button major part comes off; Reason by analysis: one there being 8 carbide buttons on the cutter, and the crown of carbide button is sharp type, directly is welded on the tool rest, because in tunneling process, have only the crown of two carbide buttons of the first same direction of arranging to become flexible rock, lifting surface area is too little, and carbide button is easy to come off.Cutter structure as illustrated in fig. 1 and 2.
Summary of the invention
In order to overcome existing little, the caducous defective of cutter lifting surface area of tearing, the utility model provide a kind of lifting surface area big, reduce come off, long service life tear cutter.The cutter of tearing of the present utility model comprises tool rest, cutter shaft, cutter hub and is fixed on carbide button on the cutter hub, and tool rest is set on the cutter shaft, and carbide button comprises first row's carbide button and second row's carbide button, and wherein, second row's carbide button is a block structure.
Further, first row's carbide button slugging is on cutter hub.
Further, first row's carbide button is arranged as three row on the cutter hub left and right directions.
The utlity model has following advantage: first row's carbide button changes slugging into by surface soldered, and second row closes carbide button and changes block structure increase lifting surface area into by the pointed tooth type, has reduced the obscission of carbide button, has prolonged the application life of cutter.
Description of drawings
Fig. 1 is the existing cutter front view of tearing;
Fig. 2 is the existing cutter vertical view of tearing;
Fig. 3 tears the cutter front view for the utility model;
Fig. 4 tears the cutter vertical view for the utility model.
Among the figure: 1-carbide button, 2,7,8,9-first row's carbide button, 3,6,10-second row's carbide button, 4,11-cutter hub, 5-cutter shaft.
The specific embodiment
According to existing defective of tearing in the cutter design, shown in Fig. 3 and 4, the utility model is designed to square alloy block with the carbide button of the sharp type of second row, to increase lifting surface area.In addition, first row's carbide buttons of 7,8,9 expressions by about each row change three row into, all sluggings have only the carbide button head that rock is become flexible in cutter hub 11; 6,10 represented second row's carbide buttons carbide button of being designed to bulk is welded on the cutter hub 11.Second row's carbide button is because bonding area increases, and the lifting surface area of carbide button also increases, and just is difficult for causing like this when rock is become flexible coming off.Through 200 meters driving test, after this cutter improves, respond well.
Though embodiment of the present utility model has been described with reference to the drawings above, it will be understood by those skilled in the art that under the situation that does not break away from the utility model scope and spirit, can make various modifications and variations to the utility model.Therefore, should be appreciated that the above embodiments are not restrictions, but the illustrating of various aspects.
Claims (3)
1. tear cutter for one kind, comprise tool rest, cutter shaft, cutter hub and be fixed on carbide button on the cutter hub, tool rest is set on the cutter shaft, and carbide button comprises first row's carbide button and second row's carbide button, it is characterized in that: second row's carbide button is a block structure.
2. the cutter of tearing according to claim 1 is characterized in that: first row's carbide button slugging is on cutter hub.
3. the cutter of tearing according to claim 1 and 2 is characterized in that: first row's carbide button is arranged as three row on the cutter hub left and right directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202130990U CN201671635U (en) | 2010-06-03 | 2010-06-03 | Tearing cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202130990U CN201671635U (en) | 2010-06-03 | 2010-06-03 | Tearing cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671635U true CN201671635U (en) | 2010-12-15 |
Family
ID=43329047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202130990U Expired - Fee Related CN201671635U (en) | 2010-06-03 | 2010-06-03 | Tearing cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671635U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680343A (en) * | 2012-04-29 | 2012-09-19 | 山东天工岩土工程设备有限公司 | Device for detecting replaceable cutter for shield machine |
| CN107044286A (en) * | 2017-06-09 | 2017-08-15 | 三重工股份有限公司 | Increase resistance body and development machine |
| CN107676101A (en) * | 2016-08-02 | 2018-02-09 | 上海力行工程技术发展有限公司 | For the cutter under the conditions of high abrasion geology and the shield cutter with cutter |
| CN108915709A (en) * | 2018-05-29 | 2018-11-30 | 中铁隧道集团二处有限公司 | A kind of slurry shield of area near a river cuts the construction method of existing bridge single-pile foundation |
| CN109184723A (en) * | 2018-08-10 | 2019-01-11 | 淮南中泰矿山装备制造有限公司 | Pipe jacking tunnelling machine high intensity cutterhead |
-
2010
- 2010-06-03 CN CN2010202130990U patent/CN201671635U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680343A (en) * | 2012-04-29 | 2012-09-19 | 山东天工岩土工程设备有限公司 | Device for detecting replaceable cutter for shield machine |
| CN107676101A (en) * | 2016-08-02 | 2018-02-09 | 上海力行工程技术发展有限公司 | For the cutter under the conditions of high abrasion geology and the shield cutter with cutter |
| CN107044286A (en) * | 2017-06-09 | 2017-08-15 | 三重工股份有限公司 | Increase resistance body and development machine |
| CN108915709A (en) * | 2018-05-29 | 2018-11-30 | 中铁隧道集团二处有限公司 | A kind of slurry shield of area near a river cuts the construction method of existing bridge single-pile foundation |
| CN109184723A (en) * | 2018-08-10 | 2019-01-11 | 淮南中泰矿山装备制造有限公司 | Pipe jacking tunnelling machine high intensity cutterhead |
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Legal Events
| 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: 20101215 Termination date: 20190603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |