圆锥滚子轴承结构参数与润滑油膜厚度的关系

The Relation Between Thickness of Oil Film & Design Parameters of Tapered Roller Bearings

试验研究表明,油膜润滑参数λ≥3时,形成全面弹性流体动力润滑;λ≥1.5时,能获得高的轴承疲劳寿命。 λ值的计算,涉及到轴承的内部结构、加工精度及应用设计的若干参数。文中推导出圆锥滚子轴承的结构参数和润滑参数的计算公式,并给出了圆锥滚子轴承油膜润滑参数计算用诺模图。通过实例计算和诺模图的精确估计,分析了国内外重点轴承厂家圆锥滚子轴承结构的润滑性能和轴承的润滑状态。附图4幅,表1个,参考文献9篇。

Experimental investigations show that full EHL can be formedwhen oil film lubrication parameter r>3; higher fatigue life of bearings can be gained when r>1.5.The parameter r, ralates to the internal design, machining accuracy and some application parameters of bearing. In this paper the calculation formula of design and lubrication parameters of tapered roller bearings are derived and the corresponding No-mogram is given. The lubrication conditions and performance of tapered roller bearings produced by major bearing factories at home and abroad are analyzed based on practical calculation and accurate estimation of Nomogram.