| 胶片导切机旋转刀的有限元分析 |
| Finite Element Analysis of Rotating Cutter for Rubber Slab Feeder |
| 投稿时间：2019-11-01 修订日期：2019-11-01 |
| DOI：10.12136/j.issn.1000-890X.2020.04.0307 |
| 中文关键词: 胶片导切机 旋转刀 刀片 破碎强度 安装偏角 刀刃宽度 有限元分析 |
| 英文关键词: rubber slab feeder rotating cutter blade breaking strength installation deflection angle edge width finite element analysis |
| 基金项目: |
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| 中文摘要: |
| 基于有限元分析方法，对密炼机上辅机系统的胶片导切机旋转刀刀片强度进行分析，并根据分析结果优化旋转刀刀片的结构设计和材料选择。结果表明：传统机械破碎强度（Pb）理论不适用于胶片导切机旋转刀的胶片切割；在剪切力（F2）一定的条件下，减小胶片导切机旋转刀刀片安装偏角或者增大刀刃宽度（W）可以降低旋转刀刀片的应力，从而减少刀片崩裂，延长刀片的使用寿命，也可以通过更换材料和改变热处理的方法来降低刀片制造成本；在F2和Pb一定的条件下，适当增大W可以减小胶片导切机投产后的磨刀频率，降低维护成本。 |
| 英文摘要: |
| Based on the finite element analysis method，the strength of the rotating cutter blade for the rubber slab feeder of the mixer upper auxiliary system was analyzed，and the structure design and material selection of the rotating cutter blade were optimized according to the analysis results. The results showed that the traditional mechanical breaking strength（Pb） theory was not suitable for the cutting process of the rotating cutter for the rubber slab feeder. When the shear force（F2）was fixed，the stress of the rotating cutter blade could be lowered by reducing the installation deflection angle or increasing the edge width（W） of the blade，and thus the cracking of the blade was reduced and the service life of the blade was extended. At the same time，the manufacturing cost of the blade could be reduced by replacing the material and heat treatment method. Under the condition of certain F2 and Pb，properly increasing W could reduce the sharpening frequency and maintenance cost of the rubber slab feeder. |
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