自行式设备是国外金属矿山厚及中厚矿体地下开采的主要机械化设备。因为自行式设备外形尺寸大,必定要显著加大采准巷道断面和单位采准工程量,这为薄矿脉开采使用这种设备造成许多麻烦。近些年来,相继推出了多种类型的主要和辅助作业用的小型自行式设备,从而使采掘作业的机械化水平大为提高。 Self-propelled equipment is the main mechanized equipment for underground mining of thick and medium-sized ore bodies in foreign metal mines. Because of the large size of the self-propelled equipment, it is necessary to significantly increase the cross-section of the quasi-entry roadway and the amount of engineering work required to be taken by the unit. This poses a lot of trouble for the exploitation of thin veins. In recent years, various types of small-scale self-propelled equipment for main and auxiliary operations have been introduced one after the other, thereby greatly enhancing the mechanization of mining operations.