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硫化异丁烯对航空钢油气润滑的影响
管文,戴振东,朱如鹏,夏延秋
0
(南京航空航天大学机电学院, 江苏南京 210016;南京航空航天大学仿生结构与材料防护研究所, 江苏南京 210016;中国科学院兰州化学物理研究所,甘肃兰州 730000)
摘要:
直升机齿轮传动要求有30~60min的干运转能力,以免减速器润滑系统出现故障时,造成灾难性的后果。采用油气润滑方式,对T321进行不同质量分数的抗磨效果对比试验,为降低试验成本,以销盘摩擦磨损试验代替齿轮传动试验。不同含量的硫化异丁烯分别加入到DOD-L-85734航空油中,做航空钢摩擦副45min的油气润滑试验。结果表明:抗磨效果最好的是添加量1%,只喷油气4次、用油量仅0.02mL, 则其45min的磨痕宽度仅为427μm, 而干摩擦仅50s的磨痕宽度却为632μm。含抗磨剂的油气润滑为解决直升机传动系统干运转问题提供了一种可行方案。
关键词:  油气润滑  硫化异丁烯  航空油  航空钢  磨损
DOI:10.3969/j.issn.1673-5005.2013.06.017
投稿时间:2013-04-03
基金项目:国家“973”计划项目(2007CB607600);中科院固体润滑国家重点实验室开放基金项目
Effect of sulfurized isobutylene on oil/air lubrication of aeronautical steel
GUAN Wen,DAI Zhen-dong,ZHU Ru-peng,XIA Yan-qiu
(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Institute of Bio-inspired Structure and Surface Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Lanzhou Institute of Chemical Physics,Chinese Academy of Science, Lanzhou 730000, China)
Abstract:
Helicopter gear transmission requires 30-60min dry running ability to avoid the disastrous consequences caused by lubrication system failure. In order to reduce the cost of testing, a pin-on-disc friction test was used instead of a gear transmission. Various percentages of sulfurized isobutylene were injected and mixed with DOD-L-85734aeronautical oil, 45min oil/air lubrication experiments were performed upon aeronautical steel tribo-pairs. The results show that the best anti-wear effect is obtained for oil/air lubrication containing 1% sulfurized isobutylene:its wear width was only 427μm during 45min period with four times of oil/air jetting and 0.02mL oil consumption, compared with 632μm wear width of dry friction for only a 50s period. The technology of oil/air lubrication containing an anti-wear additive is a feasible way to improve the dry running ability of a helicopter transmission system.
Key words:  oil/air lubrication  sulfurized isobutylene  aeronautical oil  aeronautical steel  wear
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