喷油润滑聚醚醚酮的接触疲劳性能  

Contact Fatigue Performance of PEEK under Oil-injected Lubrication

作　　者：吴若 魏沛堂[1] 谢怀杰 边疆 卢泽华 刘怀举[1] WU Ruo;WEI Peitang;XIE Huaijie;BIAN Jiang;LU Zehua;LIU Huaiju(State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing,400044;Jilin Joinature Polymer Co.,Ltd.,Changchun,130113)

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]吉林中研高分子材料股份有限公司,长春130113

出　　处：《中国机械工程》2024年第2期221-228,共8页China Mechanical Engineering

基　　金：国家自然科学基金(52275050,52175041);重庆市研究生科研创新项目(CYB22008)。

摘　　要：聚醚醚酮(PEEK)是一种高强度、耐热的工程塑料,但其接触疲劳基础数据的缺失制约了它在重载场合下的高可靠、长寿命服役。开展了喷油润滑下的PEEK滚子滚动接触疲劳试验与PEEK齿轮接触疲劳试验,绘制了接触疲劳S-N曲线。对比发现,PEEK滚子滚动接触疲劳极限比齿轮接触疲劳极限高14%,接触压力135 MPa下的滚子滚动接触疲劳寿命比齿轮接触疲劳寿命长58%,进而提出PEEK的滚子-齿轮接触疲劳寿命转换公式。PEEK was a high-strength,heat-resistant engineering polymer,but the absence of basic data of PEEK contact fatigue restricted the reliable and long-life applications under heavy-duty conditions.PEEK rolling contact fatigue tests and gear contact fatigue tests under oil injection lubrication were conducted herein,and the S-N curves were obtained.It is found that the PEEK rolling contact fatigue limit is 14% higher than gear contact fatigue limit,and the rolling contact fatigue life of rollers under the contact pressure of 135 MPa is 58% higher than gear fatigue life.And then,the conversion formula of PEEK roller-gear contact fatigue life was further proposed.

关 键 词：聚醚醚酮 齿轮 滚子 接触疲劳 应力-寿命曲线 

分 类 号：TH132.41[机械工程—机械制造及自动化]