| 发明名称 |
ROTATION UNIT, ROCK DRILLING UNIT AND METHOD FOR ROCK DRILLING |
| 摘要 |
<p>A rotation unit, rock drilling unit and method for rock drilling. The rotation unit includes a main shaft that is rotated around its longitudinal axis by means of a rotating motor. The main shaft is supported on a body of the rotation device slidingly in the axial direction. This slide property is utilized when connection threads of drilling equipment and drilling components comprised by it are connected.</p> |
| 申请公布号 |
EP2697469(A1) |
申请公布日期 |
2014.02.19 |
| 申请号 |
EP20120770573 |
申请日期 |
2012.04.13 |
| 申请人 |
SANDVIK MINING AND CONSTRUCTION OY |
发明人 |
UKONJAERVI, TAPIO;LEMMETTY, PAULI;HEDLUND, JUHA;MAEKI, JORMA |
| 分类号 |
E21B3/02;E21B19/16 |
主分类号 |
E21B3/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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