张肖肖,李书义,郭峰,等.集油轨道对偏心凸轮限量供油润滑性能的影响[J].内燃机工程,2021,42(5):70-78.
集油轨道对偏心凸轮限量供油润滑性能的影响
Influence of Oleophilic Track on Lubrication Characteristics of Eccentric Cam under Limited Lubricant Supply
DOI：10.13949/j.cnki.nrjgc.2021.05.010
关键词:集油轨道  限量供油  润滑油回填  偏心凸轮
Key Words:oleophilic track  limited lubricant supply  lubricant replenishment  eccentric cam
基金项目:国家自然科学基金面上项目(51775286); 国家自然科学基金青年基金项目(52005278)
作者单位E-mail
张肖肖 青岛理工大学 机械与汽车工程学院 xiaoxiaozhang176@163.com 
李书义 青岛理工大学 机械与汽车工程学院  
郭峰* 青岛理工大学 机械与汽车工程学院 mefguo@163.com 
孙楠楠 潍柴动力股份有限公司  
朱桂香 潍柴动力股份有限公司  
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摘要:针对偏心凸轮-蓝宝石盘弹流接触，对盘面进行表面能梯度修饰，形成增强的集油轨道。利用光干涉润滑油膜测量系统，获得限量供油条件下偏心凸轮-盘接触区润滑油膜厚度和油池分布，分析了集油轨道对接触区润滑性能的影响。结果表明：盘面表面能梯度诱发的张力驱动增强了润滑油的回填，提高了接触区中心膜厚；在低速和轻载时，集油轨道的调控效果使入口区润滑油池扩张1.6-4.7倍；高粘度润滑油会降低集油轨道润滑油回填效果；集油轨道对不同油品的润滑状态皆有改善效果；供油量不同，可形成集油轨道效果的差异。
Abstract:Under the elastohydrodynamic lubrication (EHL) of an eccentric cam-sapphire disk contact, surface energy gradient of the disk was prepared to form an oleophilic track with enhanced replenishment. The EHL film thickness and oil reservoir dis-tribution in the eccentric cam-disc contact area under limited lubricant supply were obtained by the optical interference lu-bricating oil film measurement system, and the influence of oleophilic track on the lubrication of the contact was ana-lyzed. The results showed that the tension-driving induced by the disk surface energy gradient enhances the lubricant replenishment and increases the central film thickness of the contact zone. and the regulation effect of oleophilic track makes the inlet oil reservoir expand 1.6-4.7 times at low speed and light load. At low rotation speed and light load. The oleophilic track showed a remarkable effect on regulating the distribution of lubricant. Lubricant of high viscosity will decrease lubricant replenishment in ole-ophilic track. The oleophilic track could improve the lubrication state of different oils.The effect of oleophilic track is different under different oils.
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