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介绍了立式辊磨机的结构和工作原理,对关键部位进行了受力分析。运用Pro/E三维软件建立磨盘的三维实体模型,应用有限元软件对磨盘进行强度分析。分析结果表明:磨盘的最大应力值出现在磨盘外侧从下往上的第1个拐角附近,最大应力值为22.727 MPa,远小于磨盘材料的屈服强度。同时采用有限元软件对磨盘最大应力处进行疲劳分析,得到磨盘的疲劳安全系数、疲劳寿命及失效情况等数据,为以后磨盘的设计提供理论参考依据。
The structure and working principle of vertical roller mill are introduced, and the stress analysis of key parts is carried out. The three-dimensional solid model of the disc was established by Pro / E 3D software and the strength of the disc was analyzed by finite element software. The results show that the maximum stress value of the disc appears near the first corner from the bottom to the top of the disc, and the maximum stress is 22.727 MPa, much less than the yield strength of the disc material. At the same time, the finite element software was used to analyze the fatigue of the maximum stress of the disc, and the fatigue safety factor, fatigue life and failure conditions of the disc were obtained, which provided the theoretical reference for the design of the later disc.