对于高速齿轮传动,为了实现运转平稳和考虑到轮齿在负荷下的变形,通常需要将标准的渐开线齿形加以修形。有时为了消除齿顶的干涉,而将齿顶削去一层,譬如削掉0.25毫米。当相配对的一对齿轮进入接触时,为了避免小齿轮的轮齿“啃”坏大齿轮的齿面,削尖在增速传动中的小齿轮的齿顶就特别重要。这个“啃”的动作,可能是由于齿隙不正确, For high-speed gear drives, in order to achieve smooth operation and taking into account gear tooth deformation under load, it is usually necessary to modify the standard involute tooth profile. Sometimes in order to eliminate the top of the tooth interference, while the top of the tooth cut off a layer, for example, cut 0.25 mm. It is particularly important to sharpen the tooth tip of the pinion gear in a geared drive to avoid “pinching” the tooth surfaces of the pinion gear when the mating pair of gears comes into contact. This “gnawing” action may be due to incorrect backlash,