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Author Topic: Screw - nut moving calculation  (Read 9955 times)

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Stefano

• Guest
Screw - nut moving calculation
« on: March 18, 2008, 08:12:33 AM »
Hello all,

I am Stefano. I visit your site a long time ago but this is my first time i post in your forum.

I have a motor that has a long screw on it's rotor. This screw rotates and moves a nut. on the nut, i have the load of about 14,5-15 kilos. I do not know how this assembly is called but i hope you understand what i mean.

The step of the screw is 8mm per rotation and the diameter is 22mm. I took it from an old machine that does not work any more
I want to lift this weight about 3 meters. Can anybody suggest me what kind of motor should i use and what speed can it run? I do not want it to be very slow.

Thanks a lot people!

kam

• Hero Member
• Posts: 1849
Re: Screw - nut moving calculation
« Reply #1 on: March 18, 2008, 21:41:22 PM »
You mean something like this?

FelIX

• Guest
Re: Screw - nut moving calculation
« Reply #2 on: March 20, 2008, 11:10:04 AM »
Why don't you make some tests?

Stefano

• Guest
Re: Screw - nut moving calculation
« Reply #3 on: March 20, 2008, 23:11:05 PM »
You mean something like this?

Yep. Exactly something like this.
The other way, corona - pinion i know how to calculate it. This not.

And i cannot make tests because i need to have test motors that i do not.

spic0m

• Global Moderator
• Hero Member
• Posts: 841
Re: Screw - nut moving calculation
« Reply #4 on: March 25, 2008, 22:39:20 PM »

Keep_in_mind

• Guest
Re: Screw - nut moving calculation
« Reply #5 on: March 26, 2008, 05:17:29 AM »
lol! so many formulas for calculating it? good appetite!

kam

• Hero Member
• Posts: 1849
Re: Screw - nut moving calculation
« Reply #6 on: March 27, 2008, 00:07:07 AM »
I tried to get a simple formula to calculate it but it is indeed not so simple...

Use the links to find the answer. You must first of all find some parameters from your screw like the angle of the threads and the type.

tpone

• Guest
Re: Screw - nut moving calculation
« Reply #7 on: March 27, 2008, 22:33:01 PM »

Stefano

• Guest
Re: Screw - nut moving calculation
« Reply #8 on: March 27, 2008, 23:05:43 PM »
Anything easier like 1 type for speed and 1 type for the load calculation? I am not best in maths...

FrED

• Guest
Re: Screw - nut moving calculation
« Reply #9 on: March 28, 2008, 00:24:33 AM »
Why don;t you ask the one that you got this screw?

spic0m

• Global Moderator
• Hero Member
• Posts: 841
Re: Screw - nut moving calculation
« Reply #10 on: March 28, 2008, 00:28:49 AM »
And for a technical datasheet maybe, or a web link.

spic0m

• Global Moderator
• Hero Member
• Posts: 841
Re: Screw - nut moving calculation
« Reply #11 on: April 01, 2008, 01:27:29 AM »
I think this PDF is simpler, tell me if it helps.

kam

• Hero Member
• Posts: 1849
Re: Screw - nut moving calculation
« Reply #12 on: April 01, 2008, 23:26:59 PM »
people i need to say this.

spic0m is the SEARCH MASTER of our forum

Thanks Spic0m

tpone

• Guest
Re: Screw - nut moving calculation
« Reply #13 on: April 03, 2008, 18:37:57 PM »
Wonderful!

Mercury

• Guest
Re: Screw - nut moving calculation
« Reply #14 on: April 05, 2008, 13:06:06 PM »
Kam i have seen this Dr.Calculus page and it is very good!
My idea is that you could also add this into the page!