某楔式制动器作用缸断裂失效与改进研究

发布时间：2018-05-24 16:15

本文选题：制动作用缸 + 断口分析　；参考：《机械设计与制造》2016年10期

【摘要】：在某底盘研制强化道路跑车试验过程中,出现了制动作用缸断裂失效的故障,研究针对该问题开展了断口宏观和微观形态分析,对制动作用缸的振动环境,结构应力和疲劳寿命进行了校核。分析发现由于制动气室的悬臂较长,在通过强化路面时会产生较大的振动加速度,导致制动器损坏、制动系统无法正常工作。为避免制动作用缸损坏造成车辆底盘安全性事故,对制动器作用缸进行了改进,增加了楔式制动器作用缸连接装置,并对改进后的制动系统进行了疲劳复核和跑车试验验证。
[Abstract]:In the course of developing and strengthening road sports car test of a chassis, the failure of brake action cylinder was found. The macroscopic and micro morphology analysis of fracture surface was carried out in view of this problem, and the vibration environment of brake action cylinder was analyzed. Structural stress and fatigue life were checked. It is found that because of the long cantilever of the brake chamber, the vibration acceleration will occur when the road surface is strengthened, which will lead to the brake damage and the braking system can not work normally. In order to avoid the vehicle chassis safety accident caused by the damage of the brake action cylinder, the brake action cylinder was improved, the wedge brake action cylinder connection device was added, and the improved braking system was verified by fatigue check and sports car test.
【作者单位】：北京航天发射技术研究所;
【分类号】：U463.5

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