发明名称 Method and Arrangement for Lubricating Drill Shank of Rock Drilling Machine
摘要 A method for lubricating a drill shank (9) of a rock drilling machine (5), wherein at least part of the flow of the pressure fluid of a hydraulic circuit of a device (12, 13, 29, 36, 40) of the rock drilling machine (5) performing at least one function is directed to the rotation mechanism (20, 21, 25, 34) of the drill shank (9) for the purpose of lubricating the rotation mechanism (20, 21, 25, 34) of the drill shank (9).
申请公布号 US2012292114(A1) 申请公布日期 2012.11.22
申请号 US201113574925 申请日期 2011.01.27
申请人 KESKINIVA MARKKU;PIISPANEN JUHA;ESKO MAURI;HELIN AIMO 发明人 KESKINIVA MARKKU;PIISPANEN JUHA;ESKO MAURI;HELIN AIMO
分类号 E21B12/00;E21B6/00 主分类号 E21B12/00
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