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(1)一台4LZ-3型自走式小麦联合收割机的动力输出轴壳体在轴颈上断裂一圈,原因分析:一是机车长期超负荷作业,二是动力输出胶带轮上安的四联胶带张力过大,在张紧轮放松的情况下,胶带与胶带轮本应保持一定的间隙,脱离开,但由于张力过大,致使四联胶带与胶带轮产生接触摩擦,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杆,这样造成输出轴壳体内部的梅花弹性联轴器(该件系尼龙制品)受长时间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4个连接爪被打坏受损严重,不能正常啮合。
(1) A 4LZ-3 self-propelled wheat combine harvester power output shaft shell rupture in the journal a circle, the cause analysis: First, long-term locomotive overload operation, and second, power output tape Quadruple tape tension is too large, the tension wheel to relax the case, the tape and tape wheel should maintain a certain gap, from the open, but due to excessive tension, resulting in quadruple tape and tape wheel friction, a long time , Hot tape burning, sparking also ignited the car broken straw, resulting in the output shaft housing plum elastic coupling (the nylon products) by a long time engine overload and high speed operation The impact of high temperature and impact, the elastic element is crushed into crushed debris, so disappear. Within the shell of the main, passive disk between the four connecting claws damaged badly damaged, can not be properly engaged.