本文从维修系统的规划要求出发,对故障率的调查研究方法及其数据处理进行了探讨。本文在大量调查数据的基础上分析了当前河南省拖拉机故障率的威布尔分布特征参数,根据其参数,验证了集中修理的优越性。根据寿命分布的性质,从理论上就计划预防修理制的故障预防性和计划修理间距的可行性做出了推断,根据其分布线类型及其转折变化对母体的使用维修水平和寿命潜力做出了半定量的宏观推断。 Based on the planning requirements of maintenance system, this paper discusses the research methods of failure rate and its data processing. Based on a large number of survey data, this paper analyzes the current Weibull distribution characteristic parameters of tractor failure rate in Henan province, and verifies the superiority of centralized repair according to its parameters. According to the nature of the life distribution, the feasibility of planning for preventive maintenance and planned repair interval is theoretically deduced. Based on the type of distribution line and its turning point, the maternal maintenance level and life potential are determined A semi-quantitative macro inference.