JPS61169191U - - Google Patents
Info
- Publication number
- JPS61169191U JPS61169191U JP19716885U JP19716885U JPS61169191U JP S61169191 U JPS61169191 U JP S61169191U JP 19716885 U JP19716885 U JP 19716885U JP 19716885 U JP19716885 U JP 19716885U JP S61169191 U JPS61169191 U JP S61169191U
- Authority
- JP
- Japan
- Prior art keywords
- base metal
- head
- layer
- cutting bit
- hard blade
- 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.)
- Granted
Links
- 239000010953 base metal Substances 0.000 claims description 6
- 238000005552 hardfacing Methods 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案にかかるローラビツトの使用状
態の説明図、第２図および第３図は要部の一部断
面正面図および側面図、第４図ａ，ｂはビツト頭
部の説明図である。
１……ローラビツト、２……掘削装置、３……
回転ヘツド、６……取付台、７……固定軸、９…
…台金、１０……回転軸、１３……刃体、１５…
…溝、１７……肉盛層、Ｄ……台金露出部。
Fig. 1 is an explanatory diagram of the roller bit according to the present invention in use, Figs. 2 and 3 are partially sectional front and side views of the main parts, and Fig. 4 a and b are explanatory diagrams of the bit head. be. 1... Roller bit, 2... Drilling equipment, 3...
Rotating head, 6...Mounting base, 7...Fixed shaft, 9...
...Base metal, 10...Rotating shaft, 13...Blade body, 15...
... Groove, 17... Overlay layer, D... Exposed base metal part.
Claims (1)
切削ビツトにおいて、前記台金の頭部に硬化肉盛
層を形成するとともに、硬質刃体と台金の境界部
には、硬化肉盛層が形成されていない細幅の台金
露出部を設けたことを特徴とする切削ビツト。 In a cutting bit with a hard blade embedded in the head of a steel base metal, a hardened build-up layer is formed on the head of the base metal, and a hardfacing layer is formed at the boundary between the hard blade and the base metal. A cutting bit characterized by having a narrow base metal exposed portion on which a hardfacing layer is not formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985197168U JPS6323507Y2 (en) | 1985-12-21 | 1985-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985197168U JPS6323507Y2 (en) | 1985-12-21 | 1985-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61169191U true JPS61169191U (en) | 1986-10-20 |
| JPS6323507Y2 JPS6323507Y2 (en) | 1988-06-28 |
Family
ID=30755266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985197168U Expired JPS6323507Y2 (en) | 1985-12-21 | 1985-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6323507Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018021367A (en) * | 2016-08-03 | 2018-02-08 | 株式会社奥村組 | Roller cutter for drilling machine, and drilling machine with the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173478A (en) * | 1983-03-18 | 1984-10-01 | 株式会社 利根ボ−リング | Bit for excavation and manufacture thereof |
-
1985
- 1985-12-21 JP JP1985197168U patent/JPS6323507Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173478A (en) * | 1983-03-18 | 1984-10-01 | 株式会社 利根ボ−リング | Bit for excavation and manufacture thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018021367A (en) * | 2016-08-03 | 2018-02-08 | 株式会社奥村組 | Roller cutter for drilling machine, and drilling machine with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6323507Y2 (en) | 1988-06-28 |
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