论文部分内容阅读
对航空螺旋锥齿轮断油工况进行分析,根据断油工况计算润滑油的初始啮合温度并建立螺旋锥齿轮断油润滑分析数学模型;通过编程得到断油情况下不同载荷、不同速度的接触区油膜厚度、压力和温度分布情况;分析油箱油量、断油时间、齿轮转速3个主要因素对断油润滑状态特别是中心油膜温度的影响。结果表明:航空螺旋锥齿轮在断油情况下,啮合产生的热量使油箱润滑油温度提高,在数值计算时需要对初始温度进行修正;随着油箱内润滑油量的增加,接触区润滑油温度降低;随着断油时间和齿轮转速的增加,润滑油温度逐渐升高,但升高速度逐渐减慢;齿轮转速和断油时间对接触区温度的影响大于润滑油量的影响。
The condition of the oil bevel gear is analyzed. The initial engagement temperature of lubricating oil is calculated according to the oil breakage condition, and the mathematic model of lubrication analysis of spiral bevel gear is established. Through the programming, the contact of different loads and different speeds The distribution of oil film thickness, pressure and temperature in the area; the influence of oil tank oil quantity, oil cut-off time and gear speed on oil lubrication condition, especially the central oil film temperature was analyzed. The results show that the heat generated by the engagement of aviation spiral bevel gear increases the temperature of lubricating oil in the oil tank, and the initial temperature needs to be corrected in the numerical calculation. With the increase of the lubricating oil in the oil tank, the lubricating oil temperature With the increase of oil-off time and gear speed, the lubricating oil temperature gradually increased, but the increasing speed gradually slowed down; the influence of gear speed and oil-off time on the contact zone temperature was greater than that of lubricating oil.