滚针轴承载荷分布影响因素的分析及其优化  

Analysis and Optimization of Load Distribution Influence Factors of Needle Bearings

作　　者：白晓波[1] 吉晓民[1] 王毅[1] 

机构地区：[1]西安理工大学,西安710048

出　　处：《机械科学与技术》2014年第8期1186-1191,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：陕西省自然基金项目(2011JM7005)资助

摘　　要：建立了滚针轴承载荷分布模型,并用程序实现了其数值计算,确定了影响轴承载荷分布的4个主要因素:载荷、倾角、游隙、凸度;提出了以载荷分布均匀度作为判断轴承载荷分布的评价指标,利用二次回归正交法分析了各因素对载荷分布均匀性的影响程度,建立了各评价指标的拟合公式;基于拟合公式建立了滚针最优凸度的计算模型,获得了在载荷确定情况下的最优凸度,最后确定了轴承极限倾角。A quasi-static analytical model for needle bearings was established and the bearing load distribution was calculated based on the model by computer program. The four key influencing factors on the bearing load distribution were determined as the loading, misalignment, clearance and crown. The uniform of load distribution is used as the evaluating indicator of bearing load distribution uniformity. Mathematical model was set up and the effect of various factors on load distribution of degree was analyzed by using quadratic regression orthogonal method. The model of optimized calculation was established based on the mathematical model, and the optimal crown and maximum angle of bearing were determined by using calculation.

关 键 词：滚针轴承 载荷分布 滚针凸度 优化 

分 类 号：TH133.333[机械工程—机械制造及自动化]