基于有限元分析的堵眼机转盘结构优化设计

OPTIMIZATION DESIGN OF ROTARY TABLE STRUCTURE OF PLUGGING MACHINE BASED ON FINITE ELEMENT ANALYSIS

介绍了由于堵眼机在行走过程中对平转盘产生轴向压力和径向剪切力,同时水平转盘承受矿热炉炉口阶段性高温烘烤,水平转盘经常发生结构变形。针对水平轨道转盘产生的热变形及承受运动惯性冲击的问题,提高转盘结构强度、降低成本,基于参数化设计轨道转盘结构,利用有限元分析法对结构进行校核,通过动态力学优化设计。研究结果证明:当转盘直径Φ 2 m,厚度δ30 mm,回转支撑Φ 0.922 m时,转盘在承受高温及惯性冲击下变形最小,与现有转盘相比,该方案具有变形小、结构紧凑,成本低的优势。

Due to the axial pressure and radial shear force produced by the plugging machine on the flat rotary table during walking, and the periodic high temperature baking of the submerged arc furnace mouth on the horizontal turntable, the structural deformation of the horizontal turntable often occurs in the actual production process. In view of the thermal deformation caused by the horizontal track rotary table and bearing the impact of motion inertia, in order to improve the structural strength of the rotary table and reduce the cost, based on parametric design of track rotary table structure, finite element analysis method is used to check the structure. Through dynamic mechanical optimization design, the research results show that with the diameter of the rotary table Φ2 m, thickness δ30 mm, slewing support Φ0.922 m, the rotary table has the minimum deformation under high temperature and inertial impact. Compared with the existing one, the scheme has the advantages of small deformation, compact structure and low cost.