电铲维修成本的数学模型

针对某露天铜矿电铲生产和维修管理的实际情况，收集大量电铲维修成本数据，采用数理统计回归分析法、技术经济学以及设备管理等理论，建立了电铲日常维修成本模型、故障维修成本模型和总维修成本模型.并运用模型对电铲未来维修成本进行科学预测，分析了维修成本的发展变化规律，针对铜矿实际，提出了影响维修成本的主要因素有维修备件和材料浪费、计划性维修方式的不当、停机时间太多等，并提出了第1次大修的合理周期为7.5 a.

Model of excavator maintenance costs

In view of some strip copper mine excavator production and the actual situation of maintenance management,the collectiong massive excavator maintenance cost data,using the mathematical statistics regression analysis method,the technical economics,as well as theory and so on equipment management,established daily maintenance cost model,the breakdown maintenance cost model and the total maintenance cost model for the excavator.And the excavator future maintenance cost will be forecasted by using the model,analysed maintenance cost development change rule,in view of the copper mine reality,proposed the influence maintenance cost primary factor which has the maintenance spare parts and the material waste,the wrong plan maintenance way,the many breakdown time and so on,proposed the first overhaul reasonable cycle will be 7.5 years.