发明名称 Tunnel or gallery anchoring bolt setting mechanism
摘要 The setting device secures bolts, in holes drilled in rock, with the aid of a bonding or cementing agent. The drilling device (2) consists of a sectioned rod drilling unit, to drill a hole (33) longer than the length of the bolt-setting device in the drilling direction. The inserting device (4) has a pushing mechanism (20), to push in a screwbolt (25) which is also longer than this length. The bolt-pushing mechanism can be arranged so as to feed in an endless bolt from a length, or roll, and may incorporate a cutter for this.
申请公布号 FR2545150(A1) 申请公布日期 1984.11.02
申请号 FR19840005994 申请日期 1984.04.16
申请人 TAMPELLA AB OY 发明人 JARMO LEPPANEN
分类号 E21B19/14;E21B19/20;E21D20/00;(IPC1-7):E21D20/02 主分类号 E21B19/14
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