为了达到计划产量和预算成本,机动设备(如地下矿用铲运机和运输汽车)的可靠性和高效率是极其重要的。频繁的非计划性维修将打乱矿石生产的计划,并且会使生产成本大大超过预算。变扭器、传动装置和轴等主要部件的故障率一般约占总修理件的30％;而发动机或转向系统以及液压系统出现问题能引起长时间停工和增加开支。估计主要部件的修理和(或)更换费用可能占设备总修理费的65％(图1)。 In order to achieve planned production and budget costs, the reliability and high efficiency of mobile equipment, such as scrapers and trucks, are of paramount importance. Frequent unplanned maintenance will disrupt ore production plans and will result in production costs exceeding budgets. Failure rates of major components such as torque converters, transmissions, and shafts typically account for about 30% of the total repair parts; problems with the engine or steering system, as well as with hydraulic systems, can lead to long downtimes and increased costs. It is estimated that repair and / or replacement costs of major components may account for 65% of the total repair cost of the equipment (Figure 1).