JPS6241116Y2 - - Google Patents
Info
- Publication number
- JPS6241116Y2 JPS6241116Y2 JP6157682U JP6157682U JPS6241116Y2 JP S6241116 Y2 JPS6241116 Y2 JP S6241116Y2 JP 6157682 U JP6157682 U JP 6157682U JP 6157682 U JP6157682 U JP 6157682U JP S6241116 Y2 JPS6241116 Y2 JP S6241116Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switching valve
- oil
- oil pump
- rock drill
- 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
Links
- 239000011435 rock Substances 0.000 claims description 19
- 238000005553 drilling Methods 0.000 claims description 15
- 230000007935 neutral effect Effects 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000009527 percussion Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6157682U JPS58165091U (ja) | 1982-04-26 | 1982-04-26 | さく孔機用油圧制御回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6157682U JPS58165091U (ja) | 1982-04-26 | 1982-04-26 | さく孔機用油圧制御回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58165091U JPS58165091U (ja) | 1983-11-02 |
| JPS6241116Y2 true JPS6241116Y2 (enrdf_load_stackoverflow) | 1987-10-21 |
Family
ID=30071766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6157682U Granted JPS58165091U (ja) | 1982-04-26 | 1982-04-26 | さく孔機用油圧制御回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58165091U (enrdf_load_stackoverflow) |
-
1982
- 1982-04-26 JP JP6157682U patent/JPS58165091U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58165091U (ja) | 1983-11-02 |
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