木先森
发表于 2021-5-20 12:58:37
什么?学机械的居然有女生,我不信(⊙_⊙)
问金
发表于 2021-5-24 15:49:07
怎么算的?小学文凭的我drabc从来都记不住啊,更别说后面带数字的了。但是明白楼主是在做一道数学题,重要的不是怎么设计它的结构,而是怎么去运用这些公式。对不对?
不再随风!
发表于 2021-5-24 17:00:25
认真学习了一下头数:
蜗杆上只有一条螺旋线的称为单头蜗杆,即蜗杆转一周,蜗轮转过一齿,若蜗杆上有两条螺旋线,就称为双头蜗杆,即蜗杆转一周,蜗轮转过两个齿。依此类推,设蜗杆头数用Z1表示(一般Z1=1、2、4),蜗轮齿数用Z2表示。从传动比公式可以看出,当 Z1=1,即蜗杆为单头,蜗杆须转一转蜗轮才转一齿,因而可得到很大传动比,一般在动力传动中,取传动比I=10-80;在分度机构中,I可达1000。
desk121
发表于 2021-6-18 11:54:24
duduxiaozi32 发表于 2018-12-19 16:44
就是两个蜗杆减速机
第一级由于是头数为2,齿轮齿数为22,减速比为1/11
第二级头数为1,齿数为50,减速比 ...
条理清晰,前面看懂了。
后面加减速公式我看不明白,大神们
desk121
发表于 2021-6-18 11:59:59
伟desire 发表于 2018-12-21 10:41
000
大佬,可以把那个公式展开讲解吗?
蔚蓝大海0315
发表于 2022-8-30 20:23:21
不会是抠脚大汉吧
风之鲲
发表于 2022-9-4 15:51:48
楼主可以转行了,这不都是机械原理+机械设计的基础知识吗!
爱我相随2008
发表于 2022-9-6 16:57:42
就是传动比计算,没有什么难的吧。
typecopy123
发表于 2022-9-7 10:23:53
desk121 发表于 2021-6-18 11:59
大佬,可以把那个公式展开讲解吗?
公式:
初速Vo,末速Vt
1)位移中点的速度V1
设总位移为2x
Vt^2-Vo^2=2a(2x)=4ax
V1^2-Vo^2=2ax
两式相比
V1=[(Vt^2+Vo^2)/2]^1/2
2)时间中点速度V2
设总时间为2t
a=(V2-Vo)/t=(Vt-Vo)/2t
Vt-Vo=2(V2-Vo)=2V2-2Vo
V2=(Vo+Vy)/2
阿龙M
发表于 2022-9-15 09:28:30
duduxiaozi32 发表于 2018-12-19 16:44
就是两个蜗杆减速机
第一级由于是头数为2,齿轮齿数为22,减速比为1/11
第二级头数为1,齿数为50,减速比 ...
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
这一部分的公式是怎么来的呀 2*0.5*a......,求解答 谢谢