大吨位多层平板硫化机的结构优化设计

Opimization Design of Large-tonnage Multi-layer Plate Vulcanizer Structure

以大吨位多层平板硫化机为研究对象,采用理论计算、有限元分析等方法,进行硫化机的结构优化设计,为大吨位多层平板硫化机的设计提供指导、加快设计进度和节约经费。得出的结论有:随工作板间距离的减小,连杆1受力状态从受拉逐渐变为受压,所受弯矩逐渐增加,其他连杆的承力始终增加;框板内倒角结构优化可以使半孔结构显著降低应力水平;实心压板优化使框架结构显著增加其刚度并减轻结构重量;框板和压板等固定组件采用有限元计算,连杆等活动结构采用理论计算能快速地获得强度校核结果。

The structural optimization of plate vulcanizer has been investigated by FEM and theoretical methods in order to shed light on the its structural design, cut down the costing and speed up the manufacuture cycle. It is found that with the decreases of the distance of work panels, the stress of beam 1 changes from tension to compression, the bending moment increases and therefore the stress induced by it increases, the stress of other beams increase. The stress of inner comer decreases dramatically when the comer figure changes from chamfer or rounding to semi-circle. The stiffness increases and the weight decreases when the upper and lower panel structure changes from solid to frame. The FEM is suitable to the fixed structure, i. e., the frame and the upper and lower panel, while the theoretical analysis is suitable to the flexible structure, i. e., the beams.