预负荷系数对错位瓦滑动轴承静动特性的影响  

The Influence of Preload Coefficient on Static and Dynamic Characteristics of Offset Sliding Bearing

作　　者：黄首峰 肖伟敬 杨鹏亮 杨永飞 HUANG Shoufeng;XIAO Weijing;YANG Pengliang;YANG Yongfei(ZRIMR Gearing Technology Co.,Ltd.,Zhengzhou 450001,China)

机构地区：[1]郑机所(郑州)传动科技有限公司,河南郑州450001

出　　处：《河南科技》2024年第16期46-50,共5页Henan Science and Technology

基　　金：基础科学研究项目“非补燃压缩空气储能系统用齿轮传动装置研制与应用”(ZJCD022307)。

摘　　要：[目的]滑动轴承是高速轴承-转子系统的重要组成部分,随着高速齿轮箱向着高速重载方向发展,传统圆形滑动轴承无法满足要求,错位瓦轴承具有较高的稳定性和较好的抗震性,被广泛应用于高速重载工况。预负荷系数是影响错位瓦轴承性能的重要因素,研究预负荷系数极其重要。[方法]使用DyRoBeS软件,分析不同预负荷系数对错位瓦轴承流量、功耗、温度、油膜压强、轴承刚度和阻尼等静动态特性的影响。[结果]根据仿真分析结果可知,适当增加预负荷系数能降低轴承温度,改善润滑条件;预负荷系数取0.5时Kyy最大,预负荷系数取0.35时Cyy最大。综合考虑,预负荷系数取0.4,错位瓦轴承具有较好的静动态特性。[结论]研究成果为高速齿轮箱设计提供了重要的参考。[Purposes]Sliding bearing is one of the most important components of bearing-rotor system.With the development of high-speed gear box towards high speed and heavy load,traditional circular sliding bearing can't meet the requirements.Because of its high stability and good vibration resistance,offset sliding bearing is widely used in high speed and heavy load conditions.Preload coefficient is one of the important factors affecting the performance of offset sliding bearing,so it is very important to study the preload coefficient.[Methods]By using DyRoBeS software,the effects of different preload coeffi-cients on the static and dynamic characteristics of the offset sliding bearing,such as flow rate,power con-sumption,temperature,oil film pressure,bearing stiffness and damping,are analyzed.[Findings]Ac-cording to the simulation results,proper increase of preload coefficient can reduce bearing temperature and improve lubrication conditions;when the preload coefficient is 0.5,Kyy is the maximum;when the preload coefficient is 0.35,Cyy reaches the maximum.With comprehensive consideration,when the pre-load coefficient is 0.4,the offset sliding bearing has better static and dynamic characteristics.[Conclu-sions]The conclusions of this article provide a theoretical basis for the design high-speed gear box.

关 键 词：错位瓦滑动轴承 DyRoBeS 预负荷系数 动静态特性 

分 类 号：TH133.31[机械工程—机械制造及自动化]