| 摘要: |
| 目的 为了改善食品包装生产线中的皮带输送机结构力学性能，提高皮带输送机的工作寿命，通过结构优化技术对主动辊筒进行结构设计。方法 首先，对主动辊筒进行结构分析和力学分析；然后，运用拓扑优化技术对辊筒辐板进行力学性能改进和轻量化设计；其次，基于HyperMorph对主动辊筒有限元模型进行空间节点的预变形，并进行形状优化求解。结果 优化结果分析可得，主动辊筒的柔度从1340.304 mm/N降至791.1324 mm/N，一阶固有频率从849.344 Hz增大到980.046 Hz，结构质量从1.235 t减小到0.806 t。结论 优化结果表明，基于结构优化技术的主动辊筒结构，不仅有效地提高了结构的静刚度特性，一阶固有频率的提高说明加强了抑制振动的能力，还实现了结构的轻量化，节省了结构生产制造成本。该方法对于现代工程领域中的结构优化设计具有重要的借鉴意义。 |
| 关键词: 皮带运输机 主动辊筒 拓扑优化技术 形状优化 轻量化 |
| DOI：10.19554/j.cnki.1001-3563.2019.23.023 |
| 分类号:TP391 |
| 基金项目: |
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| Performance Improvement of Belt Conveyor Roller Based on Structural Optimization Technology |
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YU Ning-bo, HUANG Zhong-yu
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Hubei Three Gorges Polytechnic, Yichang 443000, China
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| Abstract: |
| The work aims to design the structure of driving roller based on the structural optimization technology, so as to improve the structural mechanical performance and increase the working life of the belt conveyor in food packaging production line. Firstly, the structure of the driving roller was analyzed and its mechanics was analyzed. Then, the im-provement of mechanical properties and lightweight design of the roller's wheel disk were carried out via topology opti-mization technology. Secondly, the pre-deformation of the spatial node about the finite element model of the driving roller was conducted based on the HyperMorph, and the shape optimization solution was obtained. The analysis on the optimization results showed that, the compliance of the driving roller reduced from 1340.304 mm/N to 791.1324 mm/N, the first-order natural frequency increased from 849.344 Hz to 980.046 Hz, and the structural mass decreased from 1.235 t to 0.806 t. The optimization results show that, not only does the driving roller structure based on the structural optimization technology effectively improve the static stiffness of the structure, and the enhancement of the first-order natural frequency indicates that the vibration suppression ability is increased, but also the lightweight structure is achieved, which saves the manufacturing cost of the structure. The proposed method provides significant reference for the structural optimization design in modern engineering field. |
| Key words: belt conveyor driving roller topology optimization technique shape optimization lightweight |
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