• CN:11-2187/TH
  • ISSN:0577-6686

›› 1964, Vol. 12 ›› Issue (3): 76-86.

• 论文 • 上一篇    下一篇

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滑动轴承中轴的变形对液体润滑的影响

顾求林   

  1. 清华大学
  • 发布日期:1964-06-01

THE INFLUENCE OF DEFORMATION OF SHAFT ON THE HYDRAULIC LUBRICATION IN THE SLIDE BEARING

Gu Qiulin   

  1. Tsing Hua University
  • Published:1964-06-01

摘要: 滑动轴承中,引起轴与轴承的轴线不平行的重要因素之一是轴的变形,它将影响轴承的承载能力,本文研究了在短滑动轴承中轴的变形的影响。根据Ocvirk的短轴承近似方程(2),假设油压为轴的转角的一次函数((9)式),求得近似分析式(17),然后求油压的合力((25)~(27)式),并与实际受力情况联系后得方程(37)~(39),用图解法求解此方程组,并制作了一套图表。(图4~10)。最后讨论了近似公式的适用范围,并与实验[7]进行比较,结果表明当轴的变形不太大时((49)式),近似公式可以应用。

Abstract: In slide journal bearing the axes of the shaft and bearing are actually not parallel to each other due to the deformation of the shaft. It will influence the loading capacity of the bearing and cause an additional couple at the bearing. In this paper the problem is studied for short bearings by an approximate nalytical method.Starting from. The dimensionless approximate equation of hydrodynnmic lubrication for short journal bearing as supposed by Ocvirk[2,3](2)and using relations (5),(7),we have equation (8),Supposing that the pressure of the lubricant is the linear function of the slope of the shaft at the bearing (9) and substituting it in (8)we obtain linear equations (11) and (14) which can be easily solved.Calculating the resultants of pressure and equating them with the actual loading conditions of the shafts we have a group of equations which is solved simultaneously bygraphical method and a set of curves (fig.4-10) is plotted for pratical use.Finally the approximate solutions are compared with the experimental results [7], It is shown that the approximate, results can be used when tire slope of tire shaft is not very large.