Structural Design of Main Cylinder of the Extrusion Press
Main cylinder is the key component of the extrusion press and must meet high strength requirement.Therefore,this study determines the inner and outer diameters,as well as wall thickness of the middle section of the thick-walled cylindrical shell of the main cylinder on the basis of the elastic mechanic theory,obtains parameters such as thickness and rounded corner of the bottom part of the cylinder and the flange on the basis of the design experience,and proposes detail design scheme 1 according to actual working conditions and site conditions.Finally,establishes the finite element model of the main cylinder,applies the load conditions and calculates and draws the stress nephogram to verify the structural strength.For areas with large stresses,optimizes the stress distribution and proposes main cylinder scheme 2,rearranges oil inlet of the main cylinder,and verifies and calculates the structural strength.The results meet design requirements and a more reasonable stress distribution is obtained.