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螺旋给料机叶片分析及其厚度对挠度影响的模拟验证

Release time:2023-10-19 Hits:

Key Words:螺旋给料机;螺旋叶片;尺寸选择;Creo simulate;冯米塞斯应力;形变量

Abstract:螺旋给料机是常用的化工设备,大部分的螺旋给料机是非定型的,需要进行非标设计。通过对螺旋叶片平面展开法的误差进行分析,提出了合理的尺寸选择。通过三维软件Creo建立螺旋给料机螺旋体模型,采用Creo simulate模拟分析模块对螺旋体模型进行有限元分析,分析不同类型及厚度的螺旋叶片对螺旋主轴挠度的影响,研究应力、变形量随螺旋叶片厚度的变化规律。结果表明:螺旋叶片厚度在2～12mm内变化时,其所受冯米塞斯应力近似呈线性增长,没有突然增长的趋势;螺旋轴最大变形量出现在螺旋体中间部分且近似呈线性增长,没有突然增长的趋势;冯米塞斯应力和形变量随着叶片根部厚度的减小而减小,但是减小幅度较小。

Volume:No.577

Issue:05

Translation or Not:no

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