环面蜗杆传动过去称为球面或弧面蜗杆传动,其外形为圆环面中的一部分(内环面),如图1所示。环面蜗杆与它基本一致的滚刀滚切的蜗轮配合所组成的传动,叫做双包围环面蜗杆传动。这种传动,在正确设计和制造时,可以实现多齿接触、双接触线以及最有利于形成动压油膜的接触状态。因而 Toroidal worm drive used to be called spherical or curved worm drive, the shape of a part of the torus (inner torus), shown in Figure 1. Toroidal worm and it is basically the same Hob hob gear with the composition of the transmission, called the double surrounded by toroidal worm drive. This kind of transmission, in the correct design and manufacture, can achieve multi-tooth contact, double contact line and the most conducive to the formation of dynamic pressure oil film contact status. thus