极寒大温差环境下温度对轴承配合的影响及自适应补偿结构  

Influence of Temperature on Bearing Fit Under Extremely Cold and Large Temperature Difference Environment and Self-Adaptive Compensation Structure

作　　者：唐术锋[1,2] 王旭 张慧杰 姚佳男 程曦 TANG Shufeng;WANG Xu;ZHANG Huijie;YAO Jianan;CHENG Xi(School of Mechanical Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Inner Mongolia Key Laboratory of Special Service Intelligent Robotics,Hohhot 010051,China)

机构地区：[1]内蒙古工业大学机械工程学院,呼和浩特010051 [2]内蒙古自治区特殊服役智能机器人重点实验室,呼和浩特010051

出　　处：《轴承》2022年第5期16-20,共5页Bearing

基　　金：国家重点研发计划资助项目(2018YFB1307501);国家自然科学基金资助项目(61763036);内蒙古自治区高等学校创新团队发展计划资助项目(NMGIRT2213)。

摘　　要：分析了极寒大温差下外壳和圆锥滚子轴承外圈由于材料不同产生的热变形和热应力,利用热稳态的边界条件得到了热应力、热应变与径向变形,并基于ANSYS数值模拟验证了理论分析的正确性。针对热应力对轴承配合的影响,提出一种可以减少热应力影响的温变自适应补偿结构,并基于ADAMS运动学仿真验证其有效性,该结构维持了原结构中轴承的工作游隙,消除了大温差下的热应力对轴承配合的影响。The thermal deformation and thermal stress of shell and outer ring of tapered roller bearing due to different materials under extremely cold and large temperature difference are analyzed.The thermal stress,thermal strain and radial deformation are obtained by using boundary conditions of thermal steady state,and the correctness of theoretical analysis is verified based on ANSYS numerical simulation.Aimed at the influence of thermal stress on bearing fit,a temperature change self-adaptive compensation structure is proposed to reduce the influence of thermal stress,and its effectiveness is verified based on ADAMS kinematics simulation.The structure maintains the working clearance of the bearing with original structure and eliminates the influence of thermal stress on bearing fit under large temperature difference.

关 键 词：滚动轴承 圆锥滚子轴承 温差 热应力 自适应 

分 类 号：TH133.332[机械工程—机械制造及自动化] TH124