摘要
为了对中试厂首端系统废包壳倾倒装置在运行过程中可能出现的翻转轴万向联轴器及其固定销断裂故障原因进行分析并避免事故发生。本文采用数值模拟手段建立了废包壳倾倒装置的翻转轴万向联轴器及其固定销模型,并进行了多体动力学分析和故障原因分析。研究发现固定销与万向节接触区域在凸轮开始上升的阶段存在最大应力点,而翻转轴的最大应力集中在销孔与阶梯轴截面变化之间的位置。因此,现有的翻转轴不能满足振荡工况下的扭矩,而固定销可能会发生断裂故障,需要进行改进设计。
In order to analyze the cause of the failure of the flip shaft universal coupling and fixing pin breakage during the running process of the waste shell dumping device of the pilot plant of the pilot plant and avoid accidents. This work used the numerical simulation method to establish the model of the universal coupling and its fixed pin of the waste cladding dumping device. And multi-body dynamics analysis and fault cause analysis were conducted. It was found that the contact area between the fixed pin and the universal joint has a maximum stress point at the stage when the cam starts to rise, and the maximum stress of the inverted shaft is concentrated between the position of the pin hole and the step axis. Therefore, the existing tilting shaft cannot satisfy the torque under the oscillating condition, and the fixing pin may have a fracture failure. An improved design is required.
作者
杨宏悦
谢轶男
刘存银
YANG Hong-yue;XIE Yi-nan;LIU Cun-yin(China Nuclear Power Engineering Co., Ltd., Beijing Nuclear Chemical Research and Design Institute, Equipment Institute, Beijing 100840, China)
出处
《节能技术》
CAS
2019年第3期280-284,共5页
Energy Conservation Technology
关键词
万向联轴器
固定销
断裂
多体动力学分析
强度评估
universal coupling
fixed pin
fracture
multibody dynamics analysis
intensity assessment
