worm and wormwheel pulley block 蜗杆蜗轮滑车组
There is only approximate way to work out the normal chordal tooth thickness of worm and wormwheel at present.
目前所见到的圆柱蜗杆蜗轮分度圆弦齿厚计算公式均为近似公式。
On the basis of the first envelope, the paper stresses on the tooth contact analysis of the second envelope, and the equations of a worm and a wormwheel flanks are derived.
本文在第一次包络的基础上，着重进行了二次包络齿面接触分析，推导出了蜗杆和蜗轮齿面方程。
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