摘要
基于摩擦热流耦合分析模型,针对货车352226X2-2RZ型滚动轴承密封罩压装过程建立过盈连接有限元分析模型,得出密封罩温度场、塑性应变、最大接触应力和最大等效应力等,与前期的弹塑性分析结果进行比对,发现摩擦热流耦合分析模型更加符合生产实际。分析压装速度对密封罩温度场、塑性应变、最大接触应力和最大等效应力的影响规律,并获得最佳压装速度。分析结果表明,密封罩与轴承外圈压装过程中,随着压装速度的增加最高温度、密封罩塑性变形、最大接触应力和最大等效应力均增大。通过YN-2型密封罩压装测扭矩机进行密封罩压装实验,实验结果验证理论分析结果的正确性。
A finite element analysis model of interference fit was created to simulate the pressing process of 352226X2-2RZ sealing cover for wagon roller bearings based on the friction heat flow coupling analysis model,and the data were obtained such as temperature field,plastic deformation,the maximum contact stress,and the maximum equivalent stress. After comparing with the result of elastic and plastic analysis,it can be concluded that the friction heat flow coupling analysis model conforms to the producing reality. The influence rules of pressing velocity on the temperature field,plastic deformation,the maximum contact stress,and the maximum equivalent stress were analyzed and the optimum pressing velocity was acquired. The analysis result shows that with the increasing of pressing velocity during the pressing process of sealing cover,the maximum temperature,the plastic deformation of sealing cover,the maximum contact stress and the maximum equivalent stress are all increased. Pressing experiment of sealing cover was performed on the YN-2 pressure measuring torque machine,and the experimental result verified the correctness of the theoretical analysis result.
出处
《润滑与密封》
CAS
CSCD
北大核心
2017年第2期104-110,共7页
Lubrication Engineering
关键词
密封罩
摩擦热流耦合
压装速度
压装力
压装实验
sealing cover
friction heat flow coupling
pressing velocity
pressing force
press-assembly experiment
