JPH0350690U - - Google Patents
Info
- Publication number
- JPH0350690U JPH0350690U JP10915489U JP10915489U JPH0350690U JP H0350690 U JPH0350690 U JP H0350690U JP 10915489 U JP10915489 U JP 10915489U JP 10915489 U JP10915489 U JP 10915489U JP H0350690 U JPH0350690 U JP H0350690U
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- carbide tip
- base material
- tip
- bit
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 6
- 239000010953 base metal Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
第１図は本考案によるカツタビツトの一実施例
を示す側面図、第２図は第１図のＡ矢視図、第３
図は同平面図、第４図は本考案によるカツタビツ
トの他の実施例を示す側面図、第５図は従来の差
し刃タイプのカツタビツトを示す側面図、第６図
は第５図のＢ矢視図、第７図は第５図に示すカツ
タビツトの摩耗形態を示す図、第８図は母材摩耗
の原因となる切削土砂の流れ状態図、第９図は従
来の２枚差し刃ビツトの側面図、第１０図はカツ
タホイルを有するシールド掘進機の前部の側断面
図、第１１図は第１０図のＣ矢視図である。
７……カツタビツト母材、８……切削用超硬チ
ツプ、１４……背面側差込み超硬チツプ、１５…
…すくい面側母材表面を覆う板状超硬チツプ、１
６……背面側母材表面を覆う板状超硬チツプ、１
７，１８……硬化肉盛層。
Fig. 1 is a side view showing an embodiment of the Katsutabitsu according to the present invention, Fig. 2 is a view in the direction of arrow A in Fig. 1, and Fig.
4 is a side view showing another embodiment of the Katsutabito according to the present invention, FIG. 5 is a side view showing a conventional inserting blade type Katsutavit, and FIG. 6 is an arrow B in FIG. 5. Fig. 7 is a diagram showing the wear pattern of the cutter bit shown in Fig. 5, Fig. 8 is a diagram of the flow state of cutting soil that causes wear of the base material, and Fig. 9 is a diagram showing the state of the flow of cutting soil that causes wear on the base material. A side view, FIG. 10 is a side sectional view of the front part of the shield tunneling machine having cutter wheels, and FIG. 11 is a view taken in the direction of arrow C in FIG. 10. 7... Katsutabit base material, 8... Carbide tip for cutting, 14... Carbide tip inserted on the back side, 15...
...Plate-shaped carbide chip covering the surface of the base material on the rake side, 1
6...Plate-shaped carbide chip covering the surface of the back side base material, 1
7, 18... Hardened build-up layer.
Claims (1)
込んで取り付け、さらにこの切削用超硬チツプと
少なくとも同程度の硬さを持つ板状超硬チツプを
ビツト先端部周辺のすくい面側および背面側母材
表面を覆うように取り付けてなるシールド掘進機
のカツタビツト。 A carbide tip for cutting is inserted into the base metal of the bit, and a plate-shaped carbide tip with at least the same hardness as the carbide tip for cutting is inserted into the base material on the rake face side and the back side around the tip of the bit. Katsutabitsu is a shield excavator that is attached to cover the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10915489U JPH0350690U (en) | 1989-09-20 | 1989-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10915489U JPH0350690U (en) | 1989-09-20 | 1989-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0350690U true JPH0350690U (en) | 1991-05-16 |
Family
ID=31657756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10915489U Pending JPH0350690U (en) | 1989-09-20 | 1989-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0350690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242592A (en) * | 2001-02-20 | 2002-08-28 | Toshiba Tungaloy Co Ltd | Bit for shield machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH026795B2 (en) * | 1980-02-29 | 1990-02-13 | Kao Corp |
-
1989
- 1989-09-20 JP JP10915489U patent/JPH0350690U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH026795B2 (en) * | 1980-02-29 | 1990-02-13 | Kao Corp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242592A (en) * | 2001-02-20 | 2002-08-28 | Toshiba Tungaloy Co Ltd | Bit for shield machine |
| JP4622117B2 (en) * | 2001-02-20 | 2011-02-02 | 株式会社タンガロイ | Bit for shield excavator |
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