352226X2-2RZ型货车轴承密封罩压装过程分析

Press-Assemblage Process Analysis for the Sealed Cowling of 352226X2-2RZ Wagon Bearing

采用有限元分析软件ABAQUS,针对货车352226X2-2RZ型滚动轴承密封罩压装过程进行了弹性和弹塑性有限元模拟分析,得出外圈入口、外圈牙口和外圈牙口沟槽三个重要阶段的弹性应变、塑性应变和最大等效应力数值,以及不同过盈量对弹性应变、塑性应变和最大等效应力的影响规律.并从压装深度和压装过盈量两个方面分析了密封罩脱出原因,得出了较佳的密封罩压装深度和压装过盈量.通过YN-2型密封罩压装测扭矩机进行密封罩压装结果检测,从而验证了理论分析结果,对分析密封罩压装过程模拟有一定的指导意义,为其他类型轴承的研究提供了一定的理论依据.

Through finite element analysis software ABAQUS, elastic and plastic finite element analyses are performed on the press-assemblage process for the sealed cowling of 352226X2 - 2RZ lorry rolling bearing. The elastic and plastic strains and the maximum equivalent stresses at three main positions are calculated. The effect of different interferences on the elastic and plastic strains and the maximum equivalent stress is ob- tained. The prolapse reason is drawn from the depth and interference of the press-assemblage process, respec- tively. The reasonable press-assembly depth and interference are also given. The effect of press-assemblage for sealed cowling is detected by YN -2 sealed cowling torque tester. The analysis result provides the specific guiding significance to the prolapse reason analysis of the sealed cowling and the theoretical foundations to the research of other types of bearings.