履带车辆终传动与行走系统载荷分配  

Load distribution for final drive and walking system of tracked vehicle

作　　者：张耀娟[1,2] 成凯[1] 刘小光[1,3] 郑森[1] 刘维维[1] 

机构地区：[1]吉林大学机械科学与工程学院,吉林长春130025 [2]北华大学机械工程学院,吉林吉林132021 [3]空军航空大学飞行器与动力系,吉林长春130022

出　　处：《长安大学学报（自然科学版）》2014年第3期151-158,共8页Journal of Chang’an University(Natural Science Edition)

基　　金：国家科技计划和重大专项基金项目(2009DFR80010)

摘　　要：为了解决履带车辆终传动系统失效破坏问题,经过深入研究认为,解决该问题的关键在于研究终传动与行走系统载荷分配问题。通过将过盈接触零部件看作刚性体,根据梁纯弯曲时中性层曲率相等的变形规律,建立了终传动与行走系统载荷分配问题的力学模型与数学模型,从理论上进行了深入研究,并且通过有限元仿真分析方法,对理论模型进行了验证。研究结果表明:终传动系统破坏的主要原因是终传动系统大齿圈轮毂的强度不足,安全系数仅为2.6,从而导致在恶劣工况时大齿圈轮毂失效破坏,进而导致整个终传动系统的破坏;为终传动系统的优化与改进提供了理论依据与计算方法,对解决此类问题具有重要指导意义。In order to solve the final drive system damage failure of tracked vehicle,after in-depth research,research on the load distribution for final drive and walking system was found to be the key to solve the problem.Interference contact parts could be regarded as a rigid body.Then according to deformation law of equal neutral layer curvature about pure bending in beams,the mechanical model and mathematical model of the load distribution were set up.After that,the theoretical model was verified through finite element analysis method.The results show that the main reason for the final drive system damage is the insufficient strength of the large gear ring wheel hub,whose safety factor is only 2.6,which leads to the large gear ring wheel hub failure in bad condition,and further leading to the failure damage of the final drive system.This study provides theoretical basis and calculation method for optimization and improvement of the final drive system,which has important guiding significance to solve such engineering problems.

关 键 词：机械工程 载荷分配 终传动与行走系统 履带车辆 有限元分析 

分 类 号：TH11[机械工程—机械设计及理论]