多轴承支撑轴系的轴承工作游隙优化研究  

Research on Bearing Working Clearance of Multi-bearing Shafting System

作　　者：刘越[1] 戈红霞[1] 望运虎[1] 

机构地区：[1]中国北方车辆研究所车辆传动重点实验室,北京100072

出　　处：《车辆与动力技术》2015年第3期41-44,50,共5页Vehicle & Power Technology

摘　　要：根据弹性力学薄壁圆环理论,在充分考虑轴承运转中工作游隙影响因素的基础上,建立轴承内外圈与轴和轴承座过盈配合的计算模型,并考虑轴承工作游隙受到轴承运转过程中内外圈温差膨胀的影响,推导得到过盈配合对轴承工作游隙影响量的计算方法.通过算例表明,多轴承支撑轴系结构中,通过优化各轴承工作游隙,实现轴承的等寿命设计是可行的,并可以工程图的形式用于产品设计中.According to the thin-walled rings in elastic mechanics, the interference fit model of out ring and inner ring is presented for the typical muhi-bearing shafting system based on pivotal factors, which includes influence of expanding of outring and innerring temperature difference when the bearing is in operating. The working clearance is calculated in this model. It is proven that the bearing equal life method of optimizing working clearance is feasible, which can be implemented in the blueprint.

关 键 词：轴承 工作游隙 过盈配合 公差 

分 类 号：TH133.3[机械工程—机械制造及自动化]