齿轮齿条式转向机构的误差分析  

Error Analysis of Rack and Pinion Type Steering Mechanism

作　　者：屈翔[1] 廖林清[2] 王金龙[1] 张君[1] 

机构地区：[1]重庆理工大学．重庆汽车学院 [2]汽车零部件制造及检测技术教育部重点实验室,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2012年第5期16-19,69,共5页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆市科技攻关项目(CSTC,2009AB6021);重庆市教委科学技术研究项目(KJ100824)

摘　　要：基于齿轮齿条式转向机构的平面数学模型,结合左、右转向轮转角关系式,推导并计算了齿轮齿条式转向机构的4类转向误差,结果表明,转向中心误差Ⅰ和转向前束误差能较好地表征转向机构的误差。采用正交试验设计方法,分析了3种常见机构参数对转向中心误差Ⅰ和转向前束误差的影响程度。结果表明:齿条安装距离对转向中心误差Ⅰ影响显著;梯形臂对转向前束误差影响显著。Based on planar mathematical model of rack and pinion type steering mechanism, three kinds of errors including steering center error I , II, steering toe-in error are defined combined with deflection angle equation of left and right steering wheel, and the calculation formulas are deduced. The steering center error I and steering toe-in error are the two better errors of steering mechanism. This paper analyzes the influence degree of steering mechanism error by structure parameters, using the orthogonal design method. The results indicate that the trapezoid arm and the installing distance of pinion are significant influence parameters.

关 键 词：齿轮齿条式 转向机构误差 正交设计 

分 类 号：U463[机械工程—车辆工程]