H型钢万能轧机轧辊调整装置运动学动力学分析

发布时间：2018-03-26 06:11

本文选题：万能轧机　切入点：轧辊调整装置　出处：《钢铁》2015年03期

【摘要】：为了分析实际轧制过程中的振动和调节误差,研究了H型钢万能轧机轧辊调整装置基于理想约束副条件下的运动学与基于接触约束副的运动学动力学分析。从两者仿真结果的对比分析来看,理想约束条件下的水平辊调整速度是静态且恒定的0.691 4 mm/s;基于接触约束模型条件下的水平辊调整速度是动态的并呈现伴随冲击的周期性波动,大致是在0.688 7 mm/s处有比较大幅度的波动,且波动值相对理论值达36.64%,更加符合实际轧制工况。因此,基于静态设计的轧机在实际轧制过程中会出现比较明显的振动和调节误差,从而影响H型钢产品的尺寸精度和表面粗糙度,采用的变位系数蜗轮蜗杆传动是引起传动角速度波动的主要来源,这可为万能轧机的设计提供参考和依据。
[Abstract]:In order to analyze the vibration and adjustment error in the actual rolling process, The kinematics and dynamics analysis of H-bar universal rolling mill roll adjusting device based on ideal constraint pair and contact constraint pair are studied. From the comparison and analysis of the two simulation results, The adjusting speed of horizontal roll under ideal constraint condition is static and constant of 0.691 mm / s, and the adjusting speed of horizontal roll under contact constraint model is dynamic and periodic fluctuation accompanied by impact. There is relatively large fluctuation at 0.688 mm/s, and the fluctuation value is 36.64 relative to the theoretical value, which is more in line with the actual rolling conditions. Therefore, the rolling mill based on static design will appear more obvious vibration and adjustment error in the actual rolling process. As a result, the dimension precision and surface roughness of H-section steel products are affected. The worm gear drive with modified position coefficient is the main source of angular velocity fluctuation of transmission, which can provide reference and basis for the design of universal rolling mill.
【作者单位】：江西理工大学机电工程学院;
【基金】：江西省科技厅对外科技合作资助项目(20113BDH80006)
【分类号】：TG333.17

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