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目前国内机械制造厂批量生产四种型号的悬臂式掘进机,即4-3P 和轻型掘进机、4-2M 中型掘进机和4-5重型掘进机。根据 A.A.斯阔琴斯基矿山研究所的资料,为保证矿井正常的工作条件和减少巷道的维护费用,在煤层和软岩中,开拓与采准巷道的净断面不应小于12米~2。目前基洛夫机械厂批量生产的掘进机可掘进断面不超过15米~2的巷道,不能满足增大掘进断面的要求。此外,该机在技术和结构参数方
At present, the domestic machinery manufacturers mass production of four types of cantilevered boring machine, namely 4-3P and light boring machine, 4-2M medium boring machine and 4-5 heavy boring machine. According to the A.A. Slukkonsky Institute of Mines, in order to ensure the normal working conditions of the mine and reduce the maintenance cost of the roadway, the net section of the roadway opened up and quarried in the coal seam and soft rock should not be less than 12m ~ 2. At present, Kirov Machinery Works mass production of roadheader excavation section of not more than 15 m ~ 2 roadway, can not meet the requirements of increasing tunneling section. In addition, the aircraft in the technical and structural parameters side