【摘要】 据对农机专业户实际调查资料的统计分析,得出12马力(8.83 kW)手扶拖拉机的故障率服从对数正态分布,平均可靠使用期耗油为518 kg;农机专业户的经营收入,随着可靠使用期的延长而提高,每增加或减少1kg耗油的使用期,经营收入即增加或减少1.45元。为了延长机器的可靠使用期,增加农机专业户的经营收入,必须提高驾驶员素质,按规程保养维修,加强管理,健全维修系统,采取有效措施,限制农业机械的盲目发展,并应对农机专业户加强指导。更多还原

【Abstract】 According to the investigation on 8.83 kW Walking tractor fault rate & operation income of 53 Households Specializing in Agricultural Machinery Service, the statistical analysis has been made.The results sho wthat the 8.83 kW walking tractor fault rate is accordance with logarithm normal distribution, the fuel consumption of a tractor in its mean available period is 518 kg, the longer of the mean available period, the higher of the operation in come, an increase of 1 kg fuel available period may create 1.45 Yuan return. Therefore, it is very necessary for the Households to improve the level of the management & promote the ability of the operation in order to increase the available period of tractors & the operation incomes of the Households.更多还原