重型叉车前驱动桥桥壳结构强度研究  

Structural strength for front drive axle housing of heavy-duty forklift

作　　者：龚志才 何柳洋 付会鹏[1] 陈超 相曙峰 王宇坤 周航 林亥博 李宁[2] 宁晓斌[2] GONG Zhi-cai;HE Liu-yang;FU Hui-peng;CHEN Chao;XIANG Shu-feng;WANG Yu-kun;ZHOU Hang;LIN Hai-bo;LI Ning;NING Xiao-bin(HANGCHA Group Co.,Ltd,Hangzhou 310032,China;School of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310032,China)

机构地区：[1]杭叉集团股份有限公司,浙江杭州311305 [2]浙江工业大学机械工程学院,浙江杭州310032

出　　处：《机电工程》2021年第2期204-209,共6页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金资助项目(51375452);浙江省自然科学基金探索资助项目(LQ20E050011)。

摘　　要：为了实现重型叉车前驱动桥桥壳国产化,对重型叉车前驱动桥桥壳进行了结构强度研究,提出了多体动力学和有限元结合的方法。首先,建立了重型叉车多体动力学模型,分析了叉车前驱动桥桥壳在叉车满载快速举升工况、紧急制动工况、过颠簸块工况等典型工况下的动态载荷,确定了前驱动桥桥壳在各种典型工况下的最大载荷;其次,建立了叉车前驱动桥桥壳的有限元模型,分析了前驱动桥桥壳在各种典型工况最大载荷下的应力与应变;最后,采用应变测试仪测量了前驱动桥桥壳应力与应变。研究结果表明:有限元计算数值与实验测试数值基本一致;重型叉车国产化前驱动桥桥壳结构设计,能够满足重型叉车作业时对高强度、高承载驱动桥壳的需求,可替代进口产品。In order to realize the localization of the front drive axle housing of the heavy-duty forklift, the structural strength of the front drive axle housing of the heavy-duty forklift was analyzed, and a method of combining multi-body dynamics and finite element was proposed. Firstly, the multi-body dynamic model of the heavy-duty forklift was established, the dynamic load of the front drive axle housing of forklift was analyzed under typical working conditions such as the forklift full load rapid lifting condition, the forklift emergency braking condition, the forklift over bump block condition, etc. And the maximum load of the front drive axle housing was determined under various typical working conditions. Secondly, the finite element model of the front drive axle housing of the forklift was established, and the stress and strain of the front drive axle housing under the maximum load of various typical working conditions were analyzed. At last, stress strain tester was adopted to measure the stress and strain of the front drive axle housing. The results indicate that the finite element calculation value and test value were basically the same, the localized design of the front axle housing of the heavy-duty forklift can meet the demand for high-strength and high-load drive axle housing during heavy-duty forklift operations and can replace imported products.

关 键 词：重型叉车 前驱动桥 桥壳结构强度 动态载荷 

分 类 号：TH242[机械工程—机械制造及自动化] TH114[机械工程—机械设计及理论]