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1. 发明授权

US5121802A Method and arrangement for controlling a rock drilling apparatus 失效
标题翻译：控制岩石钻孔设备的方法和装置
公开(公告)号：US5121802A
公开(公告)日：1992-06-16
申请号：US498760
申请日：1990-03-26
申请人： Rauno Rajala , Pauli Rajakallio
发明人： Rauno Rajala , Pauli Rajakallio
IPC分类号： E21B19/08 , B25D9/26 , E21B44/06
CPC分类号： B25D9/26 , E21B44/06
摘要： The invention relates to a method and an arrangement for adjusting the percussion and the feed of a rock drilling apparatus with respect to each other. In the method, the volume flow of pressure fluid to be supplied to a percussion device (7) and a feed motor (8) is adjusted on the basis of the feed pressure of the feed motor (11), a volume flow adjusted pump (1) being controlled so that the ratio of the pressure applied to the persussion device (7) to the pressure of the feed motor (11) is set by control valves (10, 14). In the arrangement, pressure fluid is supplied to the percussion device (7) and the feed motor (11) by means of a volume flow adjusted pump (1). The arrangement further comprises control valves (10, 14) by means of which the volume flow of the pressure fluid fed by the pump (1) is kept such that the ratio of the pressure of the percussion device and that of the feed motor (11) remains substantially constant.
摘要翻译：本发明涉及一种用于调节凿岩装置相对于彼此的冲击和进给的方法和装置。在该方法中，基于进给电动机（11）的供给压力，调节体积流量的泵（7）和供给电动机（8）的供给压力来调整供给到冲击装置（7）和进给电动机（8）的压力流体的体积流量 1）被控制使得通过控制阀（10,14）设定施加到所述挤压装置（7）的压力与所述进给电动机（11）的压力的比率。在该配置中，压力流体通过体积流量调节泵（1）供应到冲击装置（7）和进给马达（11）。该装置还包括控制阀（10,14），通过该控制阀保持由泵（1）供给的压力流体的体积流量，使得冲击装置和进给马达（11）的压力之比）保持基本恒定。

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