发明名称 Machine for working rock, especially a block drilling machine
摘要 A machine for working rock, especially a block drilling machine, comprising at least one working tool, especially drilling tool. The drilling unit comprising the drilling tool is adapted to be connected to a supporting means in such a way that it has three degrees of freedom of rotation relative to the supporting means, which means it is movable, i.e. rotatable, relative to the supporting means about three axes which are respectively normal to each other. Furthermore the supporting means itself has at least two degrees of freedom of rotation relative to the ground. In particular, the supporting means can be pivoted about an axis which is approximately normal to the ground and an axis which is approximately parallel thereto, respectively.
申请公布号 US4890680(A) 申请公布日期 1990.01.02
申请号 US19870139455 申请日期 1987.12.30
申请人 PORSFELD, FRIEDHELM 发明人 PORSFELD, FRIEDHELM
分类号 B28D1/14;E21B7/02 主分类号 B28D1/14
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