剪叉式钢卷小车升降机构的分析与优化研究

Analysis and optimization of lifting mechanism in shear fork coil car

针对剪叉式钢卷小车在升降过程中存在液压缸最大推力偏大、液压系统工作压力偏高的问题,构建了升降机构力学模型,并进行了理论力学分析,建立液压缸最大推力和其安装位置参数之间的函数关系,提出了以减小液压缸最大推力的最优化算法,在最优化数学建模过程中又引入了两级液压缸的新型设计,最后利用Matlab软件进行了优化计算,运用Solid Works三维软件建模检查了无干涉情况。研究结果表明,液压缸最大推力降低了40%,从而验证了优化的有效性,为同类型结构优化设计提供了一定的理论参考。

Aiming at the problems that the biggest thrust of the piston is too large and the pressure of hydraulic system is too high in the working process of lifting mechanism in scissor coil car,mechanical model of lifting mechanism was established and analyzed with the knowledge of theoretical mechanics,the functional relationship between the biggest thrust and the installation location parameters was also established,an optimization method was presented. The new design of the two-stage hydraulic cylinder was introduced in the process of mathematical modeling. Finally,Matlab was used to calculate and Solid Works was used for 3D modeling to check interference. The results indicate that the biggest thrust decreases by 40% and verifies the validity of the optimization,which provides certain reference for the same design.