Page 46 - 《摩擦学学报》2020年第5期

第 40 卷 第 5 期 摩 擦 学 学 报 Vol 40 No 5
2020 年 9 月 Tribology Sept, 2020

DOI: 10.16078/j.tribology.2020003

条状润湿表面对面接触限量润滑

油膜的影响研究

*
李 哲, 刘成龙, 李 超, 郭 峰 , 栗心明
(青岛理工大学 机械与汽车工程学院，山东 青岛 266520)

摘 要: 利用面接触油膜润滑测量系统，研究了条状润湿表面对有限量供油条件下入口区供油分布及润滑油膜厚度
的影响. 对玻璃盘润滑轨道两侧进行疏油化处理，形成中央条状润湿区域，在有限量供油条件下测量不同速度下的
油膜厚度. 结果表明在表面力驱动下，润滑油向中央条状亲油区域集中，改善了入口区供油，促进了限量供油条件
下的油膜形成. 相对油膜厚度随速度的增加呈“S”型变化，同时研究了润滑油黏度及供油量等工作参数对条状润湿
轨道作用的影响.
关键词: 面接触; 条状润湿表面; 光干涉; 限量供油; 膜厚
中图分类号: TH117.3 文献标志码: A 文章编号: 1004-0595(2020)05–0601–07

Influence of Strip-Shaped Wet Surface on Lubrication Films

in Slider-on-Disc Conformal Contact under
Limited Lubricant Supply

*
LI Zhe, LIU Chenglong, LI Chao, GUO Feng , LI Xinming

(School of Mechanical & Automotive Engineering, Qingdao University of Technology,
Shandong Qingdao 266520, China)
Abstract: With the test rig for lubricating films in slider-on-disc conformal contact the influences on the inlet oil supply
and the film thickness of a strip-shaped wet surface were studied under limited lubricant supply. On the disc, two
oleophobic areas were made in such a way that a strip-shaped wet region was generated, and the oil film thickness at
different speeds was measured under limited lubricant supply. The results showed that driven by the surface force, the
lubricating oil could be collected by the strip-shaped wet region, which improved the oil supply in the inlet area and thus
the formation of the oil film under limited lubricant supply. The relative oil film thickness varied in an “S” shape with
the increase of speed. The effects of viscosity and oil supply amount on the lubricating film thickness were studied with
the strip-shaped wet surface.
Key words: conformal contact; strip-shaped wet surface; interferometry; limited lubricant supply; film thickness

在工业润滑中，往往添加过量的润滑剂以减少机 持续地供给到轴承中，摩擦副工作在适度的乏油状
械零件因摩擦磨损而造成的失效，但过量的润滑剂会 态，不仅减少用油量而且可实现小的轴承摩擦力. 另
造成资源浪费和环境污染. 因此，节能环保、低量高效 一方面，不同于传统的润滑方式，一些特殊润滑系统
[2]
成为现代工业润滑的发展趋势. 例如，在高速主轴中 需对润滑油的用量进行精准限制，例如，微系统 中液
采用的油气润滑系统 ，润滑油以微油滴的形式少量 体马达采用微量的润滑剂将摩擦面进行分离. 由于工
[1]

Received 2 January 2020, revised 19 February 2020, accepted 28 February 2020, available online 28 September 2020.
*Corresponding author. Email: mefguo@163.com, Tel:+86-532-68052759.
The project was supported by the National Natural Science Foundation of China (51775286).
国家自然科学基金项目(51775286)资助.