板形矫正轧辊轧制变形的受力分析与仿真研究

发布时间：2018-02-21 11:36

  本文关键词： 锂电池极片 板形矫正轧辊 数值模拟 矫正拉力 变形　出处：《合肥工业大学学报(自然科学版)》2017年10期 　论文类型：期刊论文

【摘要】：文章对目前锂电池极片轧辊利用小辊颈结构减少和控制轧辊挠度变形的方法提出质疑。在建立轧辊参数模型的基础上,首先通过理论分析的方法求解对小辊颈结构施加矫正拉力前、后轧辊的变形挠度大小;然后利用数值模拟的方法对其进行静态模拟仿真,模拟不同工况下轧辊的变形与应力分布;分析了在施加矫正拉力前、后其轧制区的变形分布与数值大小,得出施加拉力产生的最大矫正变形量所占比例不超过原变形量的0.7%。采用理论分析与数值模拟相结合的方法得到的结果证明,通过增加小辊颈结构改善轧辊变形的方法在实施时既增加材料成本又导致机构繁琐,并且不能有效地减少和控制轧辊的挠度变形,因此,增加小辊颈结构施加拉力是没有必要的。该结论可以为极片轧辊的结构设计提供一定的参考。
[Abstract]:In this paper, the method of reducing and controlling the deflection of roll by using the structure of small roll neck is questioned. Based on the model of roll parameters, the model of roll parameters is established. At first, the deformation deflection of the small roll neck structure is solved by the method of theoretical analysis, and then the static simulation method is used to simulate the deflection of the small roll neck structure before and after the application of the pull force, and then the method of numerical simulation is used to simulate the small roll neck structure. The deformation and stress distribution of rollers under different working conditions are simulated, and the deformation distribution and numerical value of rolling zone before and after the application of corrective tension are analyzed. The results of theoretical analysis and numerical simulation show that the proportion of the maximum corrected deformation caused by tensile force does not exceed 0.7 of the original deformation. The method of improving roll deformation by increasing the structure of small roll neck can not only increase the cost of materials but also lead to cumbersome mechanism, and can not effectively reduce and control the deflection deformation of roll. It is not necessary to increase the tensile force applied by the small roll neck structure. This conclusion can provide a certain reference for the structure design of the polar roll.
【作者单位】： 河北工业大学机械工程学院;
【基金】：国家自然科学基金资助项目(51305124) 天津市科技计划资助项目(15JCTPJC62400)
【分类号】：TG333.17;TM912
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本文编号：1521876