从勺容比、装车周期、电铲生产能力等方面分析了哈尔乌素露天煤矿495HR电铲原配置60.4 m3铲斗存在的问题和应用52.8 m3铲斗的效果,认为小铲斗更为合理.理论分析表明,与MT5500卡车匹配,52.8 m3铲斗更为合理,其小时技术生产能力和实际生产能力仅分别降低1.0％和3.4％；生产实践表明,采用52.8 m3铲斗可缩短装载周期6.2％,实际小时生产能力仅降低3.6％.由于改进了开斗机构,降低了铲斗1次装载量,使电铲开斗机构的故障次数和故障时间分别减少70％和77％,月能力增大了4.4％.%The paper analyzed the problems in the original 60.4 m3 Ha'erwusu coal mine 495 HR shovel bucket configuration and the application effect of 52. 8 m3 bucket from the capacity ratio,loading cycles and shovel production capacity. The small bucket was regarded to be more reasonable. Theoretical analysis showed that matching with the MT5500 truck, 52. 8 m3 bucket was more reasonable,and the hours of technical production and actual production was only decreased by 1.0% and 3.4%. Production practice showsed that, the use of 52. 8 m3 bucket load cycle time could be shortened by 6. 2% ,and the actual hours of production capacity was only reduced by 3. 6%. Because of the improved bucket to open fighting in reducing the weight of a load,Shovel bucket to open the number of institutions and the failure time of fault were reduced by 70% and 77% ,Monthly capacity increased by 4. 4%.
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