JPS58149490U - タ−ボドリルの軸封装置 - Google Patents
タ−ボドリルの軸封装置Info
- Publication number
- JPS58149490U JPS58149490U JP4647682U JP4647682U JPS58149490U JP S58149490 U JPS58149490 U JP S58149490U JP 4647682 U JP4647682 U JP 4647682U JP 4647682 U JP4647682 U JP 4647682U JP S58149490 U JPS58149490 U JP S58149490U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- shaft
- oil
- bearing
- mud
- 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
- 238000007789 sealing Methods 0.000 title claims 3
- 239000012530 fluid Substances 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
Landscapes
- Earth Drilling (AREA)
- Sealing Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4647682U JPS58149490U (ja) | 1982-03-31 | 1982-03-31 | タ−ボドリルの軸封装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4647682U JPS58149490U (ja) | 1982-03-31 | 1982-03-31 | タ−ボドリルの軸封装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58149490U true JPS58149490U (ja) | 1983-10-07 |
JPS6235741Y2 JPS6235741Y2 (enrdf_load_stackoverflow) | 1987-09-10 |
Family
ID=30057469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4647682U Granted JPS58149490U (ja) | 1982-03-31 | 1982-03-31 | タ−ボドリルの軸封装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58149490U (enrdf_load_stackoverflow) |
-
1982
- 1982-03-31 JP JP4647682U patent/JPS58149490U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6235741Y2 (enrdf_load_stackoverflow) | 1987-09-10 |
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