摘要：为了探索改进立式磨动态性能的途径,以大中型矿渣立式磨为研究对象,采用有限元软件ANSYS对立式磨磨盘的结构参数调整和设置减震情况进行有限元模态分析,分析振型和固有频率的变化。结果表明,增大磨盘颈部的壁厚,减小磨盘的高度,增大磨盘落料区支撑板的厚度以及减小磨盘的直径,都可以改善立式磨磨盘的动态性能;立式磨磨盘颈部的壁厚增大100 mm,立式磨磨盘落料区支撑板的厚度增大40 mm,固有频率提高了17.77%,实现了磨盘的动态优化。

关键词：立式磨；磨盘；模态分析

Abstract：To investigate the way of improving dynamic performances of vertical rolling mills,series modal analysis for the rolling plate of large or medium sized vertical rolling mills were carried out through finite element method software ANSYS to discuss the relationship between the structure parameter adjustments and the dynamic properties.The mode shapes and nature frequencies were analyzed.The results indicate that the dynamical performance of vertical rolling mills can be improved through increasing the thickness of wall neck portion or the thickness of millstone support plate.Their dynamical performance can also be improved through decreasing the height or diameter of rolling plate.Through increasing the thickness of wall neck portion by 100 mm and the millstone support plate by 40 mm,the nature frequency increases 17.77%,which realizes the dynamic optimization of rolling plate.

Keywords：vertical rolling mill;rolling plate;modal analysis