渐开线少齿数齿轮齿形系数和应力修正系数的实验研究

Experiment Research on Tooth Form Factor and Stress Correction Factor of Involute Gear with a Small Number of Teeth

用30°切线法对于齿数z=4-9的渐开线齿轮的齿形系数和应力修正系数进行了实验研究。在自制的齿廓范成仪上,对于齿数z=4-9的渐开线少齿数齿轮的齿廓进行了范成实验,测量了齿廓危险断面的宽度SFn、悬臂梁高度hFa和齿根圆角半径ρF,给出了z=4-9的渐开线齿轮的齿形系数和应力修正系数图表,为少齿数渐开线齿轮的强度计算补充了必要的设计资料。

Experiment reseach about involute gear's tooth form factor and stress correction factor by applying 30o tangent method is carried out. Tooth profile generating experiment to teeth number is carried out, measury tooth root chord at the critical section SFn,bending moment arm for root stress hFa and root fillet radius of tooth ρF are measuried, and diagrams of involute gear's tooth form factor and stress correction factor are given. Design resourse for involute gear's strenth design with a small number of teeth is supplied.