发明名称 |
ARRANGEMENT FOR SUPPORTING ROCK DRILLING APPARATUS |
摘要 |
An arrangement in a rock drilling apparatus comprising supports (5) directed toward the rear part of the feed, the supports being moveable by means of support cylinders (6) to support the feed during the drilling operation. The arrangement comprises a pressure detector (9), which is arranged to detect the pressure of the pressure fluid in the support cylinders (6) and to make the control unit supply more pressure fluid to the support cylinders (6) when the pressure drops below a pre-set threshold value.
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申请公布号 |
WO9823847(A1) |
申请公布日期 |
1998.06.04 |
申请号 |
WO1997FI00725 |
申请日期 |
1997.11.26 |
申请人 |
TAMROCK OY;HUHDANMAEKI, TAPANI |
发明人 |
HUHDANMAEKI, TAPANI |
分类号 |
E21B19/08;E21B19/086;E21B44/00;(IPC1-7):E21B44/00 |
主分类号 |
E21B19/08 |
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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