为了减轻某矿用防爆胶轮车的整体质量,根据其行驶工况和承载情况,分别建立了前后车架的CAD模型和有限元模型,采用有限元法对车架进行了应力分析,以评价车架结构的强度。在有限元分析的基础上,对现有车架结构进行轻量化设计,车架质量减小了36%。分析结果表明,优化后模型的应力强度小于材料的许用应力,优化结果是可行的,为胶轮车的改进设计提供了理论依据。 In order to reduce the overall quality of a rubber explosion-proof rubber tire truck, according to the driving conditions and bearing conditions, the CAD model and the finite element model of the front and rear frames were established respectively. The stress analysis of the frame was carried out by the finite element method Frame structure strength. On the basis of the finite element analysis, the existing frame structure of lightweight design, frame quality reduced by 36%. The analysis results show that the stress intensity of the optimized model is less than the allowable stress of the material, and the optimization result is feasible, which provides a theoretical basis for the improved design of rubber tire vehicles.