中国机械工程2024，Vol.35Issue(7)：1178-1187,10.DOI:10.3969/j.issn.1004-132X.2024.07.005
航空高速齿轮泵齿轮端面摩擦副的润滑特性
Lubrication Characteristics of Gear End Face Friction Pairs of Aviation High-speed Gear Pumps
摘要
Abstract
Aiming at the serious wear problems of gear end face friction pairs of aviation external gear pumps,a new compound texture combining Tesla valve groove type and elliptical shape was opened on the gear end faces to improve lubrication performance.Based on hydrodynamic lubrication theory and finite element simulation calculation method,a theoretical analysis model of gear textured end face friction pair lubrication was established.Pressure distribution and velocity distribution of flu-id within the end face liquid films were simulated and analyzed under conditions with and without tex-ture,and the effects of operating and structural parameters on the openness and sealing performance of gear end faces were studied.The results show that the hydrodynamic pressure generated by the tex-ture may make the gear end face friction pairs run non-contact,which has a positive effect on reducing friction and increasing efficiency.With the comprehensive consideration of the openness and leakage control performance of gear end face friction pairs,groove depth is as 7～9 μm,height difference is as 5～6 μm,inclination angle is as 0°～10°,and shape factor is as 0.4～0.5 are the optimal structural pa-rameters for the texture structure.关键词
高速齿轮泵/端面摩擦副/复合织构/液动润滑/结构优化Key words
high speed gear pump/end face friction pair/compound texture/hydrodynamic lubri-cation/structural optimization分类
机械制造引用本文复制引用
陈源,熊典峰,李运堂,高永操,李传仓,王冰清,金杰..航空高速齿轮泵齿轮端面摩擦副的润滑特性[J].中国机械工程,2024,35(7):1178-1187,10.基金项目
国家自然科学基金(51905513,52005470) （51905513,52005470）
浙江省自然科学基金(LZ23E050002) （LZ23E050002）
浙江省高校基本科研业务费项目(2021YW07) （2021YW07）
