前移式叉车转向稳定性分析  

Stability Analysis on Reach Forklift Steering

作　　者：刘奕敏[1] 黄国健[2,3] 谢小鹏[1] 王幸平 王新华 

机构地区：[1]华南理工大学机械与汽车工程学院 [2]广州特种机电设备检测研究院 [3]中山大学工学院

出　　处：《自动化与信息工程》2014年第6期23-26,共4页Automation & Information Engineering

基　　金：国家质检总局科研项目(2013QK265);珠江科技新星专项(2013075);国家特种设备科技协作平台科技计划项目专项(2014SEK001)

摘　　要：为提高前移式叉车运行和作业时的转向稳定性,需深入分析其转向稳定性机理。首先利用方位角概念将转弯动态过程等效为叉车静止在坡度不断变化的斜坡上进行失稳特征分析;接着通过侧偏角下的最小转弯半径、侧翻临界速度等对前移式叉车进行运动学分析;最后以CQD15-GA2R型号为实验对象,对其横向稳定性作具体计算,得出该机型在额定工况下,满足转弯稳定性的重心最大高度不超过656.6mm。分析结果对优化前移式叉车的结构、载荷分布、转弯半径与速度以及提高车辆运行和作业过程的转向稳定性有一定指导意义。In order to improve the reach forklift steering operation stability,it is necessary to do mechanism analysis.First,the steering dynamic process is equivalent to the forklift be static on the slope with changing gradient based on the concept of azimuth.Then we did kinematics analysis with the minimum turning radius（slip angle existed） and the rollover critical speed.Finally we did specific calculation for the lateral stability based on CQD15-GA2 R and concluded that the center of gravity height of the model was less than 656.6 mm when under rated condition and satisfying cornering stability.The analyzing results have a certain significance for optimizing the structure,load distribution,turning radius and speed.

关 键 词：前移式叉车 转向 倾翻 横向稳定性 分析 

分 类 号：TH242[机械工程—机械制造及自动化]