在党的三面红旗的光辉照耀下,贯彻自力更生奋发图强的精神,我们用三年半的时间研究了一种新型的岩心钻机-北京500-1型岩心钻机.现已开始试用于冶金系统的钻探工程中.生产实践证明,这种钻机性能优越.受到了钻探工人的普遍好评.该钻机适合于中深孔钻进.常用钻进深度为500-600米,在特殊情况下,最深可达到700米以上;最大孔径可达150毫米;钻孔倾斜范围允许为90°-70°.廻转系统采用转盘,其通孔直径为158毫米.转盘有四个转速:三个正转(100、180、265转/分),一个 Under the bright red light of the party’s three red flags, we have spent the past three and a half years studying a new type of core drilling machine, the Beijing 500-1 core drilling rig, which has been piloted for drilling in the metallurgical system In production practice has proved that this rig superior performance has been generally praised by the drilling workers.The drill is suitable for drilling in the deep hole.Drilling depth of 500-600 meters commonly used in special cases, the deepest can reach 700 meters Up to 150 mm; drilling inclination range of 90 ° -70 °. 迴 turn system uses a turntable with a through hole diameter of 158 mm Turntable has four speeds: three forward rotation (100, 180, 265 rev / min), one