120MN铝挤压机主缸缸体的设计计算及优化

摘要

首先用传统的方法对120MN铝挤压机的主缸体进行了设计计算，然后利用有限元进行了数值模拟。通过分析主缸体缸底充液阀螺栓中心圆直径、缸底圆孔直径对缸体应力及应变的影响，提出改善主缸体受力情况的几项措施，为同类零部件的设计优化提供参考。%Firstly, the main cylinder of 120MN aluminum extrusion machine is designed and calculated by the traditional method, Then the finite element method is used to simulate the numerical simulation. Through the analysis of the influence of the circle diameter of the filling valve and the diameter of circular in the bottom on stress and strain of main cylinder block, several measures of improving the stress condition of the main cylinder are put forward, providing the reference for the optimization of the design of similar parts.