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Author Topic: Screw - nut moving calculation  (Read 8882 times)

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Stefano

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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

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

FelIX

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

Stefano

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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.


Keep_in_mind

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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

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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...

As you have already seen of course with spicoms links. :(

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

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

Stefano

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

FrED

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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

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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

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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

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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

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Re: Screw - nut moving calculation
« Reply #13 on: April 03, 2008, 18:37:57 PM »
Wonderful!  8) 8) 8) 8) 8) 8) 8) 8) 8) 8) 8) 8)

Mercury

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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!