拖拉机故障分析及诊断方法（Tractor fault analysis and diagnosis method）.doc

拖拉机故障分析及诊断方法（Tractor fault analysis and diagnosis method） Tractor fault analysis and diagnostic method.Txt if one day you want to cry, call me, I cant promise to make you laugh, but I can cry with you. The basic smile is strong. Daijiu mask, became the diagnosis methods and the analysis of the skin is tractor failure I work in the agricultural year, deep agriculture lies in mechanization, the party after the third Plenary Session of the 11th CPC Central Committee, changed the management system and operating system of agricultural machinery, agricultural machinery at present, direct services to farmers, the use of the original collective management, into individual management, can be referred to as farmers, farm management farmers, maintenance. Not in place of basic maintenance, inspection and commissioning of the locomotive, appeared to identify, analysis, diagnosis and troubleshooting timely in the ice with pleasure. Not eliminate failures before they occur, i.e. the error caused by farming, and unnecessary economic loss. In view of the above phenomenon, this paper discusses the fault analysis and diagnosis methods of tractors. A, Causes and signs of tractor failures The breakdown of the tractor is caused by the deterioration of the technical condition of each component, mainly because of the preload or clearance change of the mating parts. But still within the allowable range, the tightening force connection of the torch down at the end of, but there is no loosening, relative friction between moving parts increased, but there is no collision, coordination between the components, such as: change of phase angle, concentricity, no disturbance and so on, then the deterioration of technical condition of tractor is gradually changed, but still within the normal range of technology comparison. When the technical condition deteriorated to some extent, it caused the nature of the change is obvious change phenomenon, for example: with a preload disappear, loose connections,