| 发明名称 |
A ROCK DRILLING APPARATUS AND A METHOD OF OPTIMIZING PERCUSSION ROCK DRILLING |
| 摘要 |
The impact velocity and impact frequency of the hammer piston of a percussion rock drill are vared in incremental steps in order to find the maximum penetration rate. The frequency and impact velocity are so varied that the impact power is kept substantially constant all the time. A micro-computer is used to control the process. |
| 申请公布号 |
ZA8309370(B) |
申请公布日期 |
1984.08.29 |
| 申请号 |
ZA19830009370 |
申请日期 |
1983.12.19 |
| 申请人 |
ATLAS COPCO AB |
发明人 |
STROEMDAHL CARL AKESSON |
| 分类号 |
B25D9/12;B25D9/26;B25D17/10;B25D17/24;E21B19/08;E21B19/086;E21B44/02;E21B45/00 |
主分类号 |
B25D9/12 |
| 代理机构 |
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代理人 |
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| 地址 |
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