发明名称 ROCK DRILLING MACHINE, REMOVABLE CARTRIDGE, STOP RING AND DRILLING RIG
摘要 The invention relates to a rock drilling machine comprising a front part (1a), a removable cartridge (5) arranged in the front part (1a), a shank adapter (3) and a stop ring (4) for the shank adapter (3). According to the invention, the diameter of the removable cartridge (5) is at least as great as the diameter of the stop ring (4), such that it is possible during demounting of the removable cartridge (5) to mount or demount the stop ring (4), without removing the front part (1a) from the rock drilling machine. The invention also relates to a removable cartridge (5), a stop ring (4) and a drilling rig incorporating the drilling machine.
申请公布号 US2013087356(A1) 申请公布日期 2013.04.11
申请号 US201113261507 申请日期 2011.05.06
申请人 NILSSON ULF;WALTER MAGNUS 发明人 NILSSON ULF;WALTER MAGNUS
分类号 E21B1/00 主分类号 E21B1/00
代理机构 代理人
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