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为提高轧管机主机头运动稳定性,改善钢管的轧制质量,首先对LD-15型轧管机的工作机架进行运动学分析,推导出主机头的运动加速度的解析表达式。以此为基础建立数学模型,对与轧管机主机头运动稳定性密切相关的曲柄半径、连杆长度等分别做了优化设计,并对优化结果做了分析,主机头运动稳定性有明显的提高。所推导的数学模型为提高轧管机稳定性进行优化设计提供了数学基础,方法是可行的。
In order to improve the movement stability of the main machine head and improve the rolling quality of the pipe, the kinematic analysis of the working frame of the LD-15 pipe rolling machine is firstly carried out to derive the analytic expression of the movement acceleration of the main machine head. Based on this, a mathematical model was established to optimize the design of the crank radius and connecting rod length, which are closely related to the movement stability of the main machine head of the pipe mill. The optimization results were analyzed. The stability of the head movement was obvious improve. The mathematical model deduced provides a mathematical basis for improving the stability of the tube rolling mill and the method is feasible.