论文部分内容阅读
钻机所采用的液压给进系统,从结构上看型式很多,但从工作原理来看,只有两类.一类是给进力为独立的可调参数,与钻进速度无关:另一类是给进力为可调参数,但与实际钻进速度有一定的关系. 第一类称为定压给进系统,典型油路如图1,其附加给进力为: F_加=P_上f_上F_减=P_下f_下式中F_加、F_减-给进系统的附加给进力,公斤: P_上、P_下-油缸上、下腔中的油压力,公斤/厘米~2: f_上、f_下-油缸上、下腔的承压面积,厘米~2.我国XU300-2型,瑞典泰美克250型等钻机的给
The hydraulic feed system used in drilling rigs is structurally different. However, from the working principle, there are only two types. One is that the feed force is an independent adjustable parameter and has nothing to do with the drilling speed. The other is The feed force is an adjustable parameter, but it has a certain relationship with the actual drilling speed. The first type is called the constant pressure feed system, and the typical oil circuit is shown in Figure 1. The additional feed force is: F_plus=P_ F_ on the F_ minus = P_ under f_ F_ add, F_ minus - additional feed to the system, kg: P_ on, P_ on the lower and upper cylinders Oil pressure, kg/cm~2: f_up, f_down - Pressure area of the upper and lower chambers of the cylinder, centimeter ~ 2. China XU300-2 type, Swedish tymeker 250 type etc.