发明名称 |
METHOD AND ROCK DRILLING RIG FOR HOLE DRILLING |
摘要 |
<p>The invention relates to a method and a rock drilling rig for drilling a hole in a rock. In the method the hole is drilled with a so-called top-hammer rock drilling rig including a drill rod and a cone roller bit at the end of the drill rod. During drilling with the percussion device, stress pulses of low amplitude are produced at a high frequency of at least 200 Hz. In the rock drilling rig, the cone roller bit (3) at the end of the drill rod and the percussion device are configured to feed stress pulses of low amplitude, at the frequency of at least 200 Hz, via the drill rod and the cone roller bit to the rock.</p> |
申请公布号 |
EP1931853(B1) |
申请公布日期 |
2015.12.09 |
申请号 |
EP20060794148 |
申请日期 |
2006.10.06 |
申请人 |
SANDVIK MINING AND CONSTRUCTION OY |
发明人 |
KESKINIVA, MARKKU;ESKO, MAURI;MÄKI, JORMA;HELIN, AIMO;PIISPANEN, JUHA;AHOLA, ERKKI |
分类号 |
E21B6/00;E21B;E21B7/24;E21B10/08 |
主分类号 |
E21B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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