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一辆东风EQ1090型载货车,在行驶途中,左侧前钢板弹簧突然断裂,车身猛然向左倾斜,造成驾驶员胸部撞击方向盘,导致内出血而身亡。据笔者调查,近年来类似故障本地区已发生多起。 钢板弹簧为什么会出现突然断裂的现象呢? 我们知道钢板弹簧是由若干合金钢弹簧片组合而成的近似一根等强度的弹性梁,它在起支承作用的同时,还对车架起减震及导向作用。由于不仅承受由悬架传来的向前的作用力,同时,也承受着由前后桥传来的振动力及汽车转弯时的侧向力等,
A Dongfeng EQ1090 truck, on the road, the left front leaf spring suddenly rupture, body suddenly leaning to the left, causing the driver chest hit the steering wheel, leading to internal bleeding and death. According to the author’s investigation, there have been many similar incidents in the region in recent years. Why does a sudden appearance of leaf spring phenomenon? We know that the leaf spring is composed of a number of alloy steel spring made of similar to an equal strength beam, which plays a supporting role, but also on the frame from the shock And guiding role. Because not only to withstand the forward force from the suspension, but also to withstand the vibration from the front and rear axle and the car when the turning force of the lateral force,