汽车在行驶中,由于旋转运动的零部件不平衡而造成的不良后果,越来越引起广大汽车驾驶员及修理技术人员的重视。笔者在实际工作中曾多次遇到此类现象,现将其中较典型的三个事例介绍如下: 1.解放CA10B发动机总成,经大修后在台架上热磨合时,发动机出现发抖现象,转速越高,抖得就越严重,尽管将连杆活塞副进行了称重检测,各活塞连杆副的重量差都符合技术要求,但仍未能解决发动机的发抖的问题。后查出该发动机更换过一根新曲轴,经对这根新曲轴仔细检查,发现此曲轴上没钻一个动平衡用 When a car is driving, due to the unbalanced components of the rotating motion, the adverse consequences are more and more aroused by the majority of car drivers and repair technicians. I have encountered many of these phenomena in the actual work, are now more typical of the three cases are as follows: 1. Liberation CA10B engine assembly, overhauled after the thermal run-in on the bench, the engine tremors, The higher the speed is, the more severe the shaking is. Even though the piston-rod pairs are weighed, the weight difference of each piston-rod pair meets the technical requirements, but the problem of engine trembling is still not solved. After the engine was found to replace a new crankshaft, after careful examination of this new crankshaft, found no crankshaft drilling a dynamic balance with