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在某型起重机操纵室装配过程中,其顶部玻璃极易开裂。经过调查发现:由于安装螺栓支座与安装平台存在较大间隙,且两者之间为刚性连接,导致在螺栓拧紧过程中,顶部玻璃产生较大的装配应力致其开裂。在不增加制造成本的前提下,采用有限元结构刚度分析方法,对比分析4种螺栓安装顺序方案对操纵室顶部玻璃内应力的影响,给出最优的装配顺序方案,降低顶部玻璃装配内应力,解决玻璃装配开裂问题。
In a crane crane control room assembly process, the top of the glass easy to crack. After investigation, it is found that due to the large gap between the mounting bolt support and the mounting platform and the rigid connection between the two, the top glass generates a large assembly stress and cracks during the tightening of the bolt. Without increasing the manufacturing cost, the finite element stiffness analysis method is used to analyze the influence of the four kinds of bolt installation sequence schemes on the internal stress of the top glass of the control room, and the optimal assembly sequence scheme is given to reduce the internal stress of the top glass assembly , Solve the glass assembly cracking problem.