R2轧机主传动轴的力学分析

发布时间：2018-04-05 10:12

本文选题：轧机　切入点：传动轴　出处：《安徽工业大学》2017年硕士论文

【摘要】：轧机是轧制线上使轧件发生塑性变形的重要设备,轧机传动轴的功能是将电机的转动和力矩传递到工作机架的轧辊上,所以轧机主传动装置对于轧机能否正常工作起到了至关重要的作用。伴随社会对轧制品数目需求的激烈猛增以及对该产品的品质要求不断提升,轧机主传动装置的承载能力也在经历着严峻的考验。不久以前,某钢厂粗轧机的传动轴在装轴承处发生断裂事故,本文以该钢厂粗轧机的主传动装置为分析对象,经过对轧机传动轴断裂现场的调研,从多方面展开对传动轴的研究,具体研究内容如下:(1)首先根据轧机主传动轴的断裂事故,从轧机的操作工艺、设备设计、设备维护以及宏观断口等多方面进行分析,查找R2轧机传动轴的断裂原因。(2)其次将某钢厂轧机主传动装置中的构件进行适当简化,根据轧机主传动装置的尺寸参数,建立轧机主传动装置的三维模型。(3)轧机主传动装置中支撑平衡装置提供的平衡力对于传动轴的应力分布影响很大,通过对该装置进行力学分析,建立各构件的平衡方程,从而推导出传动轴受到的平衡力与液压缸驱动力之间的函数关系式。(4)根据传动轴受到的平衡力与液压缸驱动力之间函数关系式,在MATLAB中编写平衡力的程序语言,计算出传动轴受到平衡力的最大值以及所在工况的角度。(5)将轧机主传动装置的三维模型导入ADAMS中进行动力学仿真,提取传动轴受到平衡力的最大值以及所在工况的角度,并和理论计算对比分析。(6)根据分析的结论,将轧机传动轴放在危险角度下进行力学计算。研究了传动轴由于缺陷带来的危险,得出了传动轴断裂的原因。
[Abstract]:The rolling mill is an important equipment for the plastic deformation of the workpiece on the rolling line. The function of the drive shaft of the mill is to transfer the rotation and torque of the motor to the roll of the working frame.So the main transmission of rolling mill plays a vital role in the normal operation of the mill.With the rapid increase of the demand for the number of rolling products and the continuous improvement of the quality of the products, the bearing capacity of the main transmission device of the rolling mill is also undergoing a severe test.Not long ago, the driving shaft of a rough rolling mill in a certain steel plant had a fracture accident at the bearing installation. This paper takes the main transmission device of the roughing mill in the steel mill as an analysis object, and through the investigation and investigation on the site of the fracture of the drive shaft of the mill.The research on the drive shaft is carried out from many aspects. The specific research contents are as follows: 1) first of all, according to the fracture accident of the main drive shaft of the mill, the operation process, the design of the equipment, the maintenance of the equipment and the macroscopic fracture surface of the mill are analyzed.To find out the fracture reason of drive shaft of R2 mill.) secondly, to simplify the components of the main transmission device of a steel mill properly, according to the dimension parameters of the main transmission device of the mill,The balance force provided by the support balancing device in the main transmission device of rolling mill has a great influence on the stress distribution of the transmission shaft. Through the mechanical analysis of the device, the balance equation of each component is established.Thus, the function relation between the balance force of the drive shaft and the driving force of the hydraulic cylinder is deduced. According to the function relation between the balance force of the drive shaft and the driving force of the hydraulic cylinder, the program language of balance force is written in MATLAB.The maximum value of the balancing force on the drive shaft and the angle of the working condition are calculated. (5) the three-dimensional model of the main drive device of the mill is introduced into ADAMS for dynamic simulation, and the maximum value of the balancing force on the drive shaft and the angle of the working condition are extracted.According to the conclusion of the analysis, the driving shaft of the rolling mill is calculated at the dangerous angle.The danger caused by the defect of the drive shaft is studied, and the reason of the fracture of the drive shaft is obtained.
【学位授予单位】：安徽工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG333

【参考文献】