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1动力输出轴壳体断裂一台4LZ-3型自走式小麦联合收割机的动力输出轴壳体从轴周围整个断裂一圈,分析主要原因:一是机车长期超负荷作业,二是动力输出胶带轮上的四联胶带张力太大,在张紧轮放松的情况下,胶带与带轮本应保持一定的间隙,脱离开,由于张力大,致使四联胶带与带轮产生接触摩擦,时间一长,胶带发热烧着,冒出的火星还引燃了车上散落的碎秸秆,造成输出轴壳体内部的梅花弹性联轴器(该件系尼龙制品)长时间受发动机超负荷高速运转的冲击和高温的影响,该弹性元件被撞击挤压成碎屑,以致消失。壳体内部的主、被动盘之间的
A power output shaft shell fracture A 4LZ-3 self-propelled wheat combine harvester PTO shell from the shaft around the entire rupture, analysis of the main reasons: First, locomotive long-term overload operation, the second is the power output The tension of the quadruple tape on the tape pulley is too great. Under the condition of relaxation of the tension pulley, the tape and the pulley should keep a certain gap and be separated from each other. Due to the large tension, the quadruple tape and the pulley generate contact friction, A long, hot tape burning, sparking also ignited the broken straw on the car, resulting in the output shaft housing plum elastic coupling (the nylon products) for a long time by the engine overloaded high-speed operation The impact of high temperature and impact, the elastic element is crushed into crushed debris, so disappear. Inside the shell between the main and passive disk