江西德兴铜矿采场共有5台美国P&H公司生产的2300XP型电动挖掘机,在实际使用中,由于操作不当,常使铲斗上下运行超限,上行超限时铲斗易碰提升天轮,造成天轮或铲斗损坏;下行超限时使提升钢丝绳松弛,再次提升时钢丝绳极易乱槽,导致钢丝绳使用寿命降低。 There are totally 5 sets of 2300XP electric excavators manufactured by American P & H Company in Jiangxi Dexing Copper Mine. In practice, due to improper operation, the bucket often runs over and under the limit, Resulting in damage to the sheave or bucket; when lifting the overrun, the hoisting steel wire rope is loosened, and when the steel wire rope is lifted again, the steel wire rope is easily torn down, resulting in the reduction of the service life of the steel wire rope.