发明名称 |
SETT OCH UTRUSTNING FOR BORRNING I BERG MED LAG PALLHOJD |
摘要 |
A drilling equipment and a method is intended for horizontally boring rocks with a low bench height. The drilling equipment can be used as an accessory to an ordinary dredger or the like. The whole drilling equipment is arranged to turn in a plane parallel to the plane of the brackets of the dredger's boom, and the drilling machine itself together with its drill-propulsion unit is arranged to turn in a plane perpendicular to said brackets' plane. These turnings are preferentially effected by hydraulic power from the dredger. |
申请公布号 |
SE8303851(L) |
申请公布日期 |
1985.01.07 |
申请号 |
SE19830003851 |
申请日期 |
1983.07.06 |
申请人 |
JOHNSON CONSTRUCTION CO AB |
发明人 |
SJELANDER B |
分类号 |
E21B7/02;E21B15/04;(IPC1-7):E21C11/00 |
主分类号 |
E21B7/02 |
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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