介绍了一种采用变导程蜗轮蜗杆的高精度分度方法，分析变导程蜗轮蜗杆传动原理、变导程蜗轮蜗杆调隙结构和变导程蜗轮蜗杆加工和调整方法。
A method of high precision round subsection by varied lead-interval worm and worm wheel was introduced, its drive theory, clearance adjusted framework and machining method were analyzed.
文中列出了蜗杆传动设计公式，阐述了蜗轮付制造工艺和检验、调整方法。
Besides, the manufacturing chart and adjusting method of worm wheels are also described.
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