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    • 4. 发明授权
    • Rock drilling machine, especially for underground mining
    • 岩石钻机,特别适用于地下采矿
    • US4877094A
    • 1989-10-31
    • US202872
    • 1988-06-03
    • Wolfgang Ebeling
    • Wolfgang Ebeling
    • E21B3/02E21B19/16
    • E21B3/02E21B19/16Y10T279/1241
    • A rock drilling machine, particularly for underground excavations comprises a drilling carriage, and a rotary drilling drive arranged in a longitudinally displaceable manner on the drilling carriage, the rotary drilling drive having a drive shaft, an adaptor connected with the drive shaft for joint rotation therewith and having a threaded end for form-locking receipt of drilling rods with a respective counter thread, and a clamping head co-rotating with the drive shaft for force-transmitting receipt of outwardly smooth drilling rods, the adaptor being arranged forwardly of the clamping head as considered in a drilling direction, the threaded end of the adaptor extending outwardly beyond the clamping head for free observation and being releasably mounted on a part of the drive shaft independently of the clamping head.
    • 一种特别用于地下挖掘的凿岩机包括一个钻孔支架和一个以纵向可移动的方式布置在钻机上的旋转式钻井驱动装置,该旋转钻井驱动装置具有一个驱动轴,一个与该驱动轴连接的适配器,用于与其连接地旋转 并且具有螺纹端,用于形成锁定接收具有相应的反向螺纹的钻杆,以及与驱动轴同向旋转的夹紧头,用于向外平滑的钻杆的力传递接收,适配器布置在夹紧头的前方 如在钻井方向上所考虑的那样,适配器的螺纹端向外延伸超过夹紧头,用于自由观察,并且可独立于夹紧头可释放地安装在驱动轴的一部分上。