摘要
以乏油润滑分析为理论基础,研究高速重载航空螺旋锥齿轮在供油量不足时,油膜从开始减小到最终稳定的时间和油膜厚度稳定时的接触区温度。引入乏油程度的概念,作为评价齿轮所处乏油润滑的程度,并据此计算齿轮的润滑时间,以及该时间处的油膜和界面温度。结果表明:随着运转时间的增加,乏油程度不断加大,最后趋于断油状态;在乏油程度不断加大时,界面温度趋势和油膜温度趋势逐渐统一,进而形成相似的温度分布走势,只是界面温度远小于油膜中心温度。
The time from full oil film lubrication to fearful state and the temperature of contact in the fearful state for the heavy-load ＆ high-speed aerial spiral bevel gear were studied based on the theory of starved lubrication when there is not enough lubricating oil supplied. A conception of starve-degree was defined, which is the condition of account the lubrication time and the film and contact temperature. The results show that starve - degree increases along with the gear engagement time increase, and it will become almost no lubrication in the end. With the increase of starve-degree, the film temperature and contact temperature gradually come to the same trend,but the contact temperature is much lower than the fihn temperature.
出处
《润滑与密封》
CAS
CSCD
北大核心
2008年第10期4-7,共4页
Lubrication Engineering
基金
国防基础科研重点项目(B0620060424)
关键词
螺旋锥齿轮
退化
乏油程度
油膜
接触区温度
spiral bevel gear
degeneration
starve-degree
film
temperature of contact
