SGA3550矿用自卸车驱动桥壳结构分析与改进  

Structural analysisof and improvement to drive axle housing of the SGA 3550 dump truck

作　　者：杨锁望[1] 韩愈琪[1] 杨珏[1] 

机构地区：[1]北京科技大学土木与环境工程学院,621信箱100083

出　　处：《起重运输机械》2006年第5期68-70,共3页Hoisting and Conveying Machinery

摘　　要：建立了SGA3550型矿用汽车驱动桥壳及A形架的有限元模型,选择极限工况对其进行了结构强度和刚度分析。结果表明,驱动桥壳空心梁和半轴套管部分的应力远小于材料的许用应力,而悬架支座与桥壳连接处出现了局部应力过大的情况。对该桥壳的相应结构提出了改进方案,改进后的桥壳质量更小,最大应力也大幅减小,且应力分布更为合理。Models of drive axle housing and A- frame of the SGA3550 are established and the structural strength and stiffness under limit conditions are calculated. The results show that stress in hollow beam and semi- shaft bush is much less than permissible stress, while joint of suspension frame and axle housing has too large local stress. Improvements to axle housing are made. The improved axle housing features lighter weight, reduced maximum stress and rational stress distribution.

关 键 词：自卸车 驱动桥壳 有限元 应力 

分 类 号：U469[机械工程—车辆工程]