锻压技术

叶片辊轧机传动系统动力学特性仿真与分析

英文标题：Simulation and analysis on dynamic characteristics of blade rolling mill transmission system

作者：张瑜韩玉坤陈洪月毛君

分类号：TH132.4

出版年,卷(期):页码：2019,44(4):121-126

摘要：

叶片辊轧机传动系统动力学特性是决定叶片加工质量的关键性能之一。基于虚拟样机技术，采用Pro/E建立辊轧机传动系统三维模型，再将其导入RecurDyn中进行动力学仿真，模型中设置各齿轮、齿轮与齿条间为赫兹接触模型，并以轧辊与叶片间的非线性辊轧力作为模型激励载荷，对传动系统的动态特性进行仿真分析。结果表明：传动系统中，轧辊齿轮-齿条、轧辊齿轮-齿轮以及油缸齿轮-齿条之间的接触力曲线均呈现周期性波动；旋转油缸运动过程中，瞬时速度变化周期与大齿轮及侧齿轮的啮合周期相关；上下轧辊齿轮转速平稳，但在轧辊旋转方向改变瞬间，速度存在冲击现象；运动过程中，上、下轧辊角速度变化趋势与旋转油缸角速度变化趋势基本相同。研究结果为优化叶片辊轧机传动系统结构提供了理论依据。

The dynamic characteristics of blade rolling mill transmission system is one of the key properties to confirm the process quality of blades. Based on the virtual prototyping technology, the three-dimensional model of rolling mill transmission system was established by Pro/E, and the dynamic simulation was conducted by inducting it into RecurDyn. Then, the Hertzian contact model between two gears and gear and rack were set up in the model, and the dynamic characteristics of transmission system were simulated by regarding the nonlinear rolling force between roller and blade as the exciting load. The results show that the curves of contact force between the roller gear-rack, the roller gear-gear and the oil cylinder gear-rack show a periodic fluctuation in the transmission system. During the motion process of rotating oil cylinder, the instantaneous speed change period is related to the meshing period of large gear and side gear, and the rotating speeds of up and down roller gears are stable. However, when the rotation direction of roller changes, the speed has an impact phenomenon. During the movement, the change trend of angular speed for up and down rollers is basically the same as that of the rotating oil cylinder. The research results provide theoretical basis for the optimization of transmission system structure of blade rolling mill.

基金项目：

河南省高等学校重点科研项目（19A460010 ）；2018年安阳市科技发展计划项目（安科［2018］66号）

张瑜（1987-），男，博士，讲师 E-mail：z13464238735@sina.com

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