地下牙轮钻机的研究在我院方兴未艾

STUDY ON UNDERGROUND CUTTER DRILL IN THE ASCENDANT IN CIMR

地下牙轮钻机在国外兴起之日，正是我国地下矿山深孔爆破迫切需用之时。“它山之石，可以攻玉”，我院科技人员收集了大量资料，研究分析了国外先进技术，并结合我国深孔分段爆破的特殊要求，对比了潜孔钻机与牙轮钻机的破岩方式，进而开展了地下牙轮钻机的研制工作。经过十余年的努力，我院与有关单位协作，先后研制成功４种型号的地下牙轮钻机，满足了地下矿山深孔爆破成井的穿孔需要，迎来了我国地下牙轮钻机发展的兴盛时期。

The time when underground cutter drill rose in the other countries was justbeing the moment when it was needed urgently in the longhole blasting in China's under-ground mines,There is an old saying in China,i.e.“A stone from other hills may serveto polish the made of this one”.CIMR researchers conducted the development of under-ground cutter drill,on the basis of collecting many information, analyzing the foreign ad-vanced technology and comparing the rock breaking method of DTH drill with that of cut-ter drill according to the special requirements of sublevel longhole blasting.By an effort ofmore than 10 years,Changsha Institute of Mining Research(CIMR)cooperated with unitsconcerned and developed consecutively 4 models of underground cutter drills with success.Thereby,the need of drilling in the longhole blasting for shaft in underground mines wassatisfied,and an ascendant period of underground cutter drill development has risen in Chi-na.