CN201650299U - Center cutter for shield machine - Google Patents
Center cutter for shield machine Download PDFInfo
- Publication number
- CN201650299U CN201650299U CN2010201086914U CN201020108691U CN201650299U CN 201650299 U CN201650299 U CN 201650299U CN 2010201086914 U CN2010201086914 U CN 2010201086914U CN 201020108691 U CN201020108691 U CN 201020108691U CN 201650299 U CN201650299 U CN 201650299U
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- CN
- China
- Prior art keywords
- alloy body
- shield machine
- center
- tool arm
- cutter
- 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 relates to a center cutter for a shield machine, belonging to shield machine accessories and mainly comprising cutter arms and a hard alloy body. The utility model is characterized in that the cutter arms are three and are arranged on a middle combining body in a Y shape. A center alloy body is brazed on the middle combining body, and a large alloy body and a small alloy body are brazed on the cutter arms. The center cutter for the shield machine has the advantages of uniform stress, small work resistance, reasonable structure, long using life and high working efficiency, and the impact resistance and abrasion resistant performances of the center cutter are effectively increased.
Description
Technical field
The utility model belongs to the shield machine accessory, is specifically related to a kind of central cutter that is installed on the cutter head of shield machine.
Background technology
Shield machine is welded on center cutter on the base plate of shield machine, connects by bolt, and with other shield structure cutter associated working, constructions such as the collaborative excavation of finishing the tunnel, driving.Used center cutter generally adopts the fishtail cutter now, belongs to the rapid wear accessory of shield machine, and tool arm is two, and in-line distributes, and cemented carbide body is set on it.Because cemented carbide body tiles on tool arm, resistance is big; The volume of cemented carbide body is little simultaneously, wears no resistance.
The innovation and creation content
The purpose of this utility model is to provide a kind of shield machine center cutter of rational in infrastructure, long service life.
The utility model is achieved in that
The shield machine center cutter mainly comprises tool arm and cemented carbide body, it is characterized in that: described tool arm is three, Y-shaped being arranged on the middle groups zoarium; Described cemented carbide body is made up of center alloy body, big alloy body and primary alloy body, and center alloy body soldering is on the middle groups zoarium, and big alloy body and primary alloy body are linear soldering on tool arm.
After the utility model adopted said structure, tool arm was three, Y-shaped distribution, and stressed even, working resistance is little.Effectively improve shock resistance, the abrasion resistance properties of center cutter, had the effect of rational in infrastructure, long service life, high efficiency.Do not collapse cutter, not cracked, do not subside, do not come off, be suitable for the use under the various complex geological conditions.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model, and Fig. 2 is the lateral view of Fig. 1.
In the accompanying drawing, 1 is that tool arm, 2 is that big alloy body, 3 is that primary alloy body, 4 is that wearing layer, 5 is that center alloy body, 6 is the middle groups zoarium.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
As shown in Figure 1, the utility model is a kind of shield machine center cutter, is installed on the rotating cutter-head of shield machine, mainly comprise tool arm 1 and cemented carbide body, tool arm 1 is three, and Y-shaped being set in place on the middle groups zoarium 6 in centre position forms mutual 120 ° of angles and distribute; The outer end of tool arm 1 is set to the arc-shaped transition end face; Middle groups zoarium 6 is set to cylindrical, has circular port on it; As shown in Figure 2, soldering has columniform center alloy body 5 in the circular port, and the outer end of center alloy body 5 is designed to taper, and this tapered end design has the work plane of arc.5 shock resistances of center alloy body, mar proof are strong.As shown in Figure 1, 2, evenly be provided with the big alloy body 2 that the square hard alloy blocks more than two is formed on each tool arm 1, soldering is in the blind groove of tool arm 1.Between the adjacent big alloy body 2, and be provided with primary alloy body 3 between center alloy body 5 and the adjacent big alloy body 2, form big alloy body 2 and primary alloy body 3 setting at interval; Primary alloy body 3 is made up of the carbide alloy bar of bar shaped, and also soldering is in the corresponding blind groove of tool arm 1.As shown in Figure 2, the work plane of primary alloy body 3 is lower than the work plane of big alloy body 2, scrapes the effect of digging except that playing, and can also effectively protect tool arm 1.
For increasing the anti-wear performance of tool arm 1, weld high-abrasive material on the tool arm 1, form one deck wearing layer 4.
During work, every block of carbide alloy has moving radius separately respectively, scrapes respectively and digs operation.
Claims (5)
1. the shield machine center cutter mainly comprises tool arm (1) and cemented carbide body, it is characterized in that: described tool arm (1) is three, Y-shaped being arranged on the middle groups zoarium (6); Described cemented carbide body is made up of center alloy body (5), big alloy body (2) and primary alloy body (3), and center alloy body (5) soldering is on middle groups zoarium (6), and big alloy body (2) and primary alloy body (3) are linear soldering on tool arm (1).
2. shield machine center cutter according to claim 1 is characterized in that: described center alloy body (5) is set to cylindrical, and the curved working face that has tapering is adopted in the end.
3. shield machine center cutter according to claim 1 and 2 is characterized in that: described big alloy body (2) is made up of the square hard alloy blocks more than two; Described primary alloy body (3) is made up of bar shaped carbide alloy bar, and big alloy body (2), primary alloy body (3) are provided with at interval.
4. shield machine center cutter according to claim 3 is characterized in that: the work plane of described primary alloy body (3) is lower than the work plane of big alloy body (2).
5. shield machine center cutter according to claim 4 is characterized in that: described tool arm (1) is gone up welding one deck wearing layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201086914U CN201650299U (en) | 2010-02-02 | 2010-02-02 | Center cutter for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201086914U CN201650299U (en) | 2010-02-02 | 2010-02-02 | Center cutter for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650299U true CN201650299U (en) | 2010-11-24 |
Family
ID=43115533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201086914U Expired - Fee Related CN201650299U (en) | 2010-02-02 | 2010-02-02 | Center cutter for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650299U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155238A (en) * | 2011-03-21 | 2011-08-17 | 天津大学 | Exchangeable blade type center cutter for shield machine |
| CN104265312A (en) * | 2014-09-25 | 2015-01-07 | 无锡市翱宇特新科技发展有限公司 | Center cutter of shield tunneling machine |
| CN104727825A (en) * | 2015-03-31 | 2015-06-24 | 罗云 | Cutting tool structure of shield tunneling machine |
-
2010
- 2010-02-02 CN CN2010201086914U patent/CN201650299U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155238A (en) * | 2011-03-21 | 2011-08-17 | 天津大学 | Exchangeable blade type center cutter for shield machine |
| CN102155238B (en) * | 2011-03-21 | 2013-01-02 | 天津大学 | Exchangeable blade type center cutter for shield machine |
| CN104265312A (en) * | 2014-09-25 | 2015-01-07 | 无锡市翱宇特新科技发展有限公司 | Center cutter of shield tunneling machine |
| CN104727825A (en) * | 2015-03-31 | 2015-06-24 | 罗云 | Cutting tool structure of shield tunneling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Techgong Geotechnical Engineering Equipment Co., Ltd. Assignor: Liu Yuhai Contract record no.: 2013370000209 Denomination of utility model: Exchangeable blade type center cutter for shield machine Granted publication date: 20101124 License type: Exclusive License Record date: 20130905 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20180202 |