蜗轮蜗杆公称传动比和传动比有什么区别

2025-03-15 17:16:26
推荐回答(2个)
回答1:

蜗杆传动的的主动件是蜗杆,从动件是蜗轮,蜗杆转动一圈,蜗轮才转一个齿,蜗轮有n个齿,它们的传动比就是1/n而齿轮传动的主、从动件都是齿轮,它们是齿与齿互相啮合的,主动齿轮转动一圈,从动齿轮就转动Z主/Z从(Z主代表主动轮齿数,Z从代表从动轮齿数),它们的传动比就是Z从/Z主而1/n

回答2:

不是的,蜗轮蜗杆传动比是蜗轮齿数除以蜗杆头数。这里也不细说具体公式,因为光同样的齿坯可以加工多种头数,且模数不变,只是导程度角改变。比如蜗轮30齿,蜗杆如果从单头变为双头,那传动比就从30:1变成了15:1,3头就是10:1,4头7.5:1类推,一般系列型号都采用这种形态,20:1和40:1、25:1和50:1也采用单双头的形态,有效节省半成品控制。希望我的回答对你有所帮助

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