球面蜗杆传动是蜗杆齿纹包容蜗轮齿数较 多的一种蜗杆传动。因而相应地减小了接触应力,使球面蜗杆与同尺寸的普通蜗杆传动相比,能传递大的功率。同时由于蜗杆齿纹包容齿数较多,故传动平稳性也比一般蜗轮副好。 由于缺乏制造这种球面装置的专用设备(尤其是球面蜗轮),又由于刀具 Spherical worm drive worm gear is more tolerant worm gear a worm drive. As a result, the contact stress is correspondingly reduced, enabling the spherical worm to transmit a large amount of power as compared with an ordinary worm gear of the same size. At the same time as the worm tooth teeth accommodate more teeth, so the transmission is more stable than the average worm gear. Due to the lack of special equipment for manufacturing such spherical devices (especially spherical worm wheels)