圆弧齿线圆柱齿轮在理想状况下的齿向载荷分布

THE LOAD DISTRIBUTION OF CIRCULAR—ARC—TOOTH—TRACE CYLINDER GEAR UNDER THE IDEAL CONDITION

齿轮的齿向载荷分布是影响齿轮承载能力的重要因素,为了探索一种新型齿轮的承载能力,就必须对其齿向载荷分布的情况进行具体研究。圆弧齿线圆柱齿轮的齿线呈三维空间圆弧状,由于其齿面的形状比较复杂,加之轮齿和轴、轴承、机座等支承系统的受力变形,就更增加了所研究问题的复杂性。为此,本文通过对齿轮计算模型的简化,采取理论分析与试验研究相结合的方法,对在理想状况下圆弧齿线圆柱齿轮的齿向载荷分布情况进行了研究,并由此导出了理论载荷分布系数的计算公式。这些研究结果在试验测试中得到了验证。

The load distribution along the tooth trace of gears is of im- portance to their bearing capacity, therefore, it is necessary for us to make a concrete analysis of the load distribution along the gear tooth trace before discussing the gear bearing capacity. The Circu- lar-Arc-Tooth-Trace cylinder (CATT)gear has a tooth trace which is a curve in three dimensional space and a complex tooth flanks shape. In addition, the gear tooth and its support system (includ- ing shaft, bearing and bearing base etc) get out of shape during working time. so, the question to be discussed is very complicated. This paper makes a study of load distribution along the tooth trace of CATT gear under the ideal condition, combinipg theory etical analysis with experiments and simplifying the mathematical model. The theoretical formula for load distribution coefficient is obtained which is verified in the experiments.