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汽车前后桥钢板弹簧骑马螺栓用弹簧垫圈在装配时,经常出现有张开现象,这是目前不少汽车厂普遍存在的质量问题。由于弹簧垫圈张开问题得不到解决,螺母在拧紧时达不到原规定拧紧力矩,因而使弹簧钢板之间达不到应有予紧力,对钢板弹簧疲劳寿命等有一定影响。我们曾做了一些试验验证工作,获得了一些感性知识,加深了对弹簧垫圈性能方面的了解。同时,发现了一个新问题,即弹簧垫圈如何正确、经济、合理地使用,以防止设计中盲目采用,而又得不到应有效果,浪费了钢材。
Automotive front and rear axle leaf spring riding bolts with spring washers in the assembly, there are often open phenomenon, which is currently the prevalence of many auto factories quality problems. As the spring washer open problem can not be solved, the nut can not meet the original provisions of the tightening torque, so that the spring can not reach the plate between the tight force, the fatigue life of the leaf spring have a certain impact. We have done some experimental verification work, gained some sensory knowledge, deepen the understanding of the spring washer performance. At the same time, a new problem was discovered, namely how to use the spring washer properly, economically and reasonably to prevent the blind adoption of the design without obtaining the proper results and wasting the steel.