一、概述平面双包络环面蜗杆传动是一种新型的蜗杆传动。蜗杆齿面是空间曲线密切面的包络面,它是以一平面为母面,按一定的相对运动规律包络而成的。蜗轮齿面则以上述平面包络蜗杆齿面为母面,通过另一次包络运动形成的包络曲面,它是由理论上与该蜗杆一致的或近似的滚刀展成的。形成这一传动副,需要两次包络运动,所以称之“平面二次包络环面蜗杆传动”。 First, an overview of the plane double enveloping worm drive is a new type of worm drive. The worm tooth surface is the enveloping surface of the close surface of the space curve, which is formed by enveloping a plane as a parent surface and according to a certain relative motion law. Worm gear surface with the above-mentioned planar envelope worm tooth surface as the parent surface, through another enveloping envelope formed by the surface, which is theoretically consistent with the worm or similar hob developed. The formation of this transmission, you need two enveloping movements, so called “planar enveloping worm gear.”