300MN模锻水压机主分配器优化设计

Optimization Design for Main Distributor of 300MN Die Water Press

针对300MN模锻水压机原主分配器驱动方式落后、阀体体积大、工艺孔多等问题,提出了基于"油缸+齿轮齿条机构+凸轮顶杆机构+位移检测装置"分配阀芯开启度的控制方式。以工作柱塞最大速度为基础,优化了分配器阀体的结构和阀芯的开启图。基于有限元方法和阀体主要结构参数的灵敏度分析,以阀体最小体积为优化目标,对阀体进行了优化设计。工程应用表明,分配阀芯驱动方式先进,阀体体积大幅减小和工艺孔数量大幅减少。

In the 300MN die forging water press, its original main distributor＇s driver mode is out -of-date, its valve body＇s capacity and technological hole＇s quantity are big. The distributor spool＇ s open gap was controlled by ＂oil cylinder ＋ pinion-and-rack mechanism ＋cam-and-lifter mechanism ＋ displacement detection device＂. Based on the maximal speed of the working plunger, the structure of valve body and open schedule of distributor＇s spool were optimized. Based on finite-element method and sensitivity analysis on main variables of valve body, the valve body whose capacity minimization as optimization target was optimized. Practical application shows that driver mode of distributor＇ s spool is advanced, the capacity of valve body and quantity of technological hole are reduced.