基于仿生学理论的自卸车驱动桥桥壳优化设计

Optimization Design of Dump Truck Drive Axle Housing Based on Bionics Theory

以某型自卸车驱动桥桥壳设计为例,基于仿生学理论对桥壳后盖进行轻量化设计,实现降重并提高了桥壳中部离地间隙;桥壳内腔流线设计,降低铸造难度,提高零件质量;板弹簧座及反作用杆上支架的优化设计减少加工面积,降低能耗。采用Pro/E对桥壳进行三维建模,通过有限元计算与优化前现有模型进行对比分析,优化后的桥壳安全系数满足使用要求。

Taking the structural design of the driving axle housing of a dump truck as an example,the back cover of the axle housing is lightweight designed based on bionics method,which realizes weight reduction and improves the clearance between the middle and the ground of the axle housing;streamline design of the inner cavity of the axle housing reduces the difficulty of casting and improves the quality of the parts;optimization design of the support on the plate spring seat and reaction bar reduces the increase.Work area,reduce energy consumption.Pro/E is used to build the three-dimensional model of the axle housing.By comparing the finite element calculation with the existing model before optimization,the safety factor of the optimized axle housing meets the requirements of use.