发明名称 |
METHOD OF CONTROLLING ROCK DRILLING |
摘要 |
A method of controlling rock drilling performed by a rock drill provided with a pressure-driven hammer and a rotation motor. In the method, the speed of rotation of the drill rod is defined on the basis of the value of the control signal used to control the control valve that adjusts the flow of the pressure fluid to the rotation motor.
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申请公布号 |
WO9857033(A1) |
申请公布日期 |
1998.12.17 |
申请号 |
WO1998FI00458 |
申请日期 |
1998.05.29 |
申请人 |
TAMROCK OY;POEYSTI, TAPANI |
发明人 |
POEYSTI, TAPANI |
分类号 |
E21B3/00;E21B44/00;E21B44/06;(IPC1-7):E21B44/00 |
主分类号 |
E21B3/00 |
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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