论文部分内容阅读
挖掘机是露天矿山的主要装载设备,它的发展已有100余年的历史。由于世界各国钢铁、煤炭和有色金属工业的高速发展,特别是60年代大型矿用电动轮汽车的出现,加速了矿用挖掘机向大斗容量方向发展。当前,国外大型金属露天矿山已普遍采用了斗容量q=11.5～16米~3的挖掘机,更大斗容量的挖掘机虽在继续研制和使用,但发展速度有所缓慢。制造部门为了提高产品的竞争能力,重点转向提高现有产品的技术性能。主要在以下各点上下功夫:
Excavators are the main loading equipment for open-pit mines and have been in development for more than 100 years. Due to the rapid development of the steel, coal and non-ferrous metals industries in the world, especially the emergence of large-scale mining electric wheel cars in the 1960s, mining excavators are being accelerated in capacity. At present, excavators with bucket capacity of q = 11.5 ~ 16m ~ 3 have been widely used in large open-air mines in foreign countries. Although excavators of larger bucket capacity are still being developed and used, the development speed has been slow. Manufacturing departments in order to improve the competitiveness of their products, the focus shifted to improve the technical performance of existing products. Mainly in the following points make efforts: