汽车水泵轴承变形和载荷计算方法  

Calculation Method of Deformation and Load for Automotive Water Pump Bearing

作　　者：李正美[1] 周琼[1] 王建文[1] 安琦[1] 

机构地区：[1]华东理工大学机械与动力工程学院,上海200237

出　　处：《华东理工大学学报（自然科学版）》2011年第1期112-118,共7页Journal of East China University of Science and Technology

摘　　要：汽车水泵轴承变形和载荷的精确计算是提高轴承寿命、润滑性能和分析其动态特性计算合理性和准确性的重要条件,也一直是轴承工业界面临的难题之一。计算汽车水泵轴承两列滚子受载的传统方法是将整个轴承的所有元件看成是刚性的,忽略了轴承转轴滚动元件变形,因而计算精度不高。以WR3258152型汽车水泵轴承为研究对象,建立了可以精确计算水泵轴承变形和内部载荷分布的解析模型。在考虑汽车水泵轴承内部弹性变形的基础上,构建了两列滚动体的受力计算模型,并通过实例计算,对比了该模型和传统方法的载荷计算结果。Precise calculation of the deformation and load for automotive water pump bearing is very important for researching the life,lubricating property and dynamic behavior of the bearing,but it is always a difficult problem for the bearing industry.The traditional method for calculating the loads acting on the two rolling element rows of the automotive water pump bearing treats all the elements of bearing as rigid bodies and neglects the deflection and bending of the bearing spindle.Thus,the calculated results by this method are not precise enough.In this paper,taking the WR-type automotive water pump bearing as the research subject,an analytical model,from which the deformation and internal load distribution of the automotive water pump bearing can be obtained,was developed.Based on the internal elastic deformation of the bearing,the model for calculating the loads acting on the two rolling element rows of the auto water pump bearing was proposed.Finally,a calculation example was provided and the comparison was made between the results obtained by the new method and the traditional method.

关 键 词：汽车水泵轴承 弹性变形 载荷分布 静力平衡 

分 类 号：TH133.33[机械工程—机械制造及自动化]