热连轧机水平振动仿真与实验研究

发布时间：2018-04-11 23:08

本文选题：热连轧机 + 水平振动　；参考：《中南大学学报(自然科学版)》2015年12期

【摘要】：某热连轧机在轧制薄规格板材时发生强烈振动,为确定其振动类型和振源,对其进行仿真计算和测试分析。首先计算该轧机水平振动和主传动系统的固有频率和主振型;然后对该轧机主传动系统和辊系振动情况进行综合测试,发现该轧机水平振动最剧烈,并引起轧机垂直振动和主传动系统扭振,因此,对该轧机水平振动进行仿真分析,研究轧件厚度以及工作辊和支承辊偏移量对水平振动的影响。研究结果表明:轧件厚度越薄,后张力和轧制力的波动越大,对轧辊水平振动影响增大;工作辊与支承辊偏移量的增大,轧机水平振动降低,达到稳态振动的时间缩短,但该偏移量不宜过大。增加0.7 mm厚垫片减小工作辊水平振动的方案,可以减小间隙,明显抑制轧机水平振动,效果良好。
[Abstract]:Strong vibration in rolling mill for thin plate in a hot strip, in order to determine the type of vibration and vibration, simulation calculation and test analysis. The natural frequency and main vibration mode is first calculated the horizontal vibration and rolling mill main drive system; then a comprehensive test of the main drive system of the rolling mill and roll vibration the horizontal vibration of rolling mill, the most violent, and cause torsional vibration, vertical vibration of the main drive system of rolling mill and so on the simulation analysis of the influence of rolling mill vibration level, the thickness and the work roll and backup roll offset on the level of vibration. The results show that the thickness of the thinner, tension and rolling force the larger fluctuation, to increase effect of roller vibration; increase the work roll and supporting roll offset, horizontal vibration of rolling mill is reduced, shorten the time to reach the steady state vibration, but the offset should not be too large. An increase of 0. The 7 mm thick gasket reduces the horizontal vibration of the working roll. It can reduce the gap and obviously restrain the horizontal vibration of the rolling mill, and the effect is good.

【作者单位】：燕山大学国家冷轧板带装备及工艺工程技术研究中心;大连华锐重工集团股份有限公司;
【基金】：国家自然科学基金资助项目(51305388) 河北省青年拔尖人才支持计划项目(BJ2014055)~~
【分类号】：TG333

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