【摘要】 介绍近十年来天井钻机在我国的试制和推广情况,着重论述了天井钻机试制过程中保证回转箱、框架和滑轨、油缸、钻杆和滚刀加工精度和装配质量的经验,并对天井钻机推广使用的经济效果进行了比较具体的分析。更多还原

【Abstract】 This review describes the development and popularization of raise borers in China over the past decade. The authors stress the experiences in assuring the machining precision and installation quality related to the revolving box, frame, slide guide, oil tank, drilling rod and rolling cutter, when designing a raise borer. Finally, the economical aspects of popularizing raise borers arc examined in detail.更多还原