发明名称 |
Supporting arrangement for a feed device for a rock drilling machine |
摘要 |
A supporting arrangement for a feed device for a drilling machine of a rock drilling unit (2) comprising a feed device (3) for a drilling machine (4), a cradle (5) supporting the feed device longitudinally displaceably and a supporting device (10) which is extendable in parallel with the feed device for supporting the feed device against a tunnel wall. The supporting device is supported by the cradle so that it remains stationary with respect to the cradle when the feed device is displaced.
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申请公布号 |
US4676322(A) |
申请公布日期 |
1987.06.30 |
申请号 |
US19840645087 |
申请日期 |
1984.08.28 |
申请人 |
OY TAMPELLA AB |
发明人 |
RAJAKALLIO, PAULI;HAKKINEN, LEO |
分类号 |
E21B15/00;E21B7/02;(IPC1-7):E21C11/00 |
主分类号 |
E21B15/00 |
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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