编织衬垫关节轴承热力耦合分析

发布时间：2017-12-28 04:20

本文关键词：编织衬垫关节轴承热力耦合分析　出处：《轴承》2017年08期 　论文类型：期刊论文

【摘要】：根据关节轴承相关的热传导理论,建立了基于ABAQUS仿真软件的动态热力耦合模型,分析了编织衬垫关节轴承温度、应力、变形的分布规律及摩擦热对轴承力学性能和结构尺寸的影响。运用自制的关节轴承试验机对轴承温度进行实时测量,得到热平衡状态时关节轴承内圈温度场的分布,并与ABAQUS热力耦合模型中关节轴承试验测点所对应的温度场分布进行对比。结果表明:相较于无摩擦热时,有摩擦热时内圈和衬垫的变形量变小;在接触区域衬垫变形呈现波动分布,与内圈的接触面积变大。适当的摩擦温度可以缓解编织衬垫关节轴承的应力变化,改善关节轴承的力学性能,延长使用寿命。试验与仿真结果的一致性验证了仿真模型的准确性。
[Abstract]:According to the theory of heat transfer in joint bearing, a dynamic thermal mechanical coupling model based on ABAQUS simulation software is established. The distribution law of temperature, stress and deformation of the knitted liner bearing is analyzed, and the influence of friction heat on the mechanical properties and structural dimensions of the bearing is also analyzed. A self-made joint bearing test machine is used to measure the bearing temperature in real time. The distribution of temperature field of the inner ring of the bearing is obtained when the heat balance is in state, and the temperature field distribution of the bearing joint test point in the ABAQUS thermo mechanical coupling model is compared. The results show that the deformation of inner ring and liner is smaller than that of frictionless heating when the friction heat occurs, and the deformation of the gasket in the contact area fluctuates, and the contact area between the inner ring and the inner ring increases. The appropriate friction temperature can relieve the stress change of the knitted bearing joint bearing, improve the mechanical properties of the joint bearing and prolong the service life. The consistency of the test and simulation results verifies the accuracy of the simulation model.
【作者单位】：宁波曙光机电制造有限公司;河南科技大学机电工程学院;
【基金】：国家自然科学基金项目(51275155) 国家“八六三”计划(2015AA043004) 河南省科技创新杰出人才基金(154200510013)
【分类号】：TH133.3
【正文快照】： 自润滑关节轴承具有体积小、摩擦因数低、质量轻、摩擦力矩小、承载高、易拆装和免保养等特点,广泛应用于各种机械加工设备[1-2]。摩擦温度的急剧上升是关节轴承失效形式中的重要形式。国内外针对摩擦热进行了很多研究。文献[3]提出了摩擦副表面上由于摩擦热不均匀引起摩擦接

【相似文献】