发明名称 METHOD AND DEVICE FOR ROCK DRILLING
摘要 <p>A method for producing Shockwave pulses in a tool direction (R) of a pulse machine (1) having a housing (2), wherein an impulse piston (4) is arranged, wherein the impulse piston is influenced by a first force in a direction opposite to said tool direction through a first fluid pressure (Pi) in a first chamber (7), and by a second force in said tool direction, wherein 'a Shockwave pulse is produced through a rapid relief of the first fluid pressure after displacement of the impulse piston (4) relative to the housing in a direction opposite to the tool direction, is distinguished in that the length of the shock wave is controlled by the length (L) of said displacement is regulated. The invention also concerns a device, rock drilling machine and a rock drilling rig.</p>
申请公布号 WO2008036013(A1) 申请公布日期 2008.03.27
申请号 WO2007SE00796 申请日期 2007.09.12
申请人 ATLAS COPCO ROCK DRILLS AB;TUOMAS, GOERAN 发明人 TUOMAS, GOERAN
分类号 B25D9/14;E21B1/28;E21B44/00 主分类号 B25D9/14
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