喷油嘴喷射角度对航空齿轮冷却效果的影响  

Influence of Nozzle Injection Angle on Cooling Effect of Aero Gears

作　　者：曾红[1] 魏松[1] 牛文韬[2] 宋贯华 王延忠[2] 

机构地区：[1]辽宁工业大学机械工程与自动化学院,辽宁锦州121001 [2]北京航空航天大学机械工程与自化学院,北京100191

出　　处：《润滑与密封》2016年第9期128-131,共4页Lubrication Engineering

基　　金：国家自然科学基金项目(51275020)

摘　　要：通过对对流换热的影响因素及高速传动齿轮喷油冷却机制的分析,从理论探讨高速重载航空齿轮喷油润滑系统喷油嘴喷射角度改变对冷却效果的影响;在搭建的试验台上,通过不同喷射角度下的冷却试验,研究喷射角度改变对高速传动齿轮冷却效果的影响规律。研究发现:喷射角度越小,齿面冷却效果越好,在允许的情况下,减小喷油嘴喷射角度能够得到更好地冷却效果。该研究结果对高速重载航空齿轮润滑系统设计具有一定的指导作用。By analyzing the influencing factors of convective heat transfer and the spray oil cooling mechanism of high speed transmission gear,the influence of nozzle injection angle on the cooling effect of high-speed and heavy load aero gear oil spray lubrication system were studied. The experiments on the cooling effect of high-speed and heavy load gear under different injection angles were carried out on the built test platform,the rules of influence on the cooling effect of highspeed and heavy load gear with injection angle changed were investigated. The results show that the smaller the spray angle,the better the tooth surface cooling effect. Under the circumstances permitted,better cooling effect can be realized by decreasing the nozzle spray angle. The results of this study have certain guiding role for the design of high speed and heavy load aero gear oil spray lubrication system.

关 键 词：航空齿轮 喷油润滑 喷射角度 对流换热 齿面温度 

分 类 号：V233.42[航空宇航科学与技术—航空宇航推进理论与工程]