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engnewbie
Participant

Join Date: Oct 2012
Posts: 4

Rack and Pinion Question

10/21/2012 11:15 PM

Hello everyone, I am newbie in engineer design and currently have a problem with my calculation. Please if you could help me out.... I am very appreciated it. If you have any other information need to find out....

Question:
How do I calculate (as well as chosing gears size, motors) for our "rack and pinion" system?
Requirement:

- the pinion will move the rack (gear will move the linear gear bar) 0.04 inches in y direction


Known:
- Forces:
Axial Force (object weight): 2000 lbf [includes SAFETY FACTOR (SF) = 1.5 to 2]
Transverse Force: 400 lbf, both normal and tangential [includes SF = 1.5 to 2]
- Speeds:
Transverse: 4 to 10 in. per min. (IPM)
push down speed: 0.2 to 6.0 IPM
- Energy:
Electrical Supply: 220 VAC and 30 amps coming out of the wall socket

Have a great day !!!!!!!!! I need it ASAP
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#1

Re: RACK AND PINION QUESTION !!!!

10/21/2012 11:27 PM

Please reformulate correctly.

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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#2

Re: RACK AND PINION QUESTION !!!!

10/21/2012 11:38 PM

Do you have a cad program?

Rack and Pinion Gears

ATLANTA Gear Racks
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engnewbie
Participant

Join Date: Oct 2012
Posts: 4
#6
In reply to #2

Re: RACK AND PINION QUESTION !!!!

10/23/2012 3:23 PM

what CAD program do you talking about? I have CatiaV5 R20...
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fixitorelse
Guru

Join Date: Aug 2010
Posts: 687
Good Answers: 21
#3

Re: RACK AND PINION QUESTION !!!!

10/21/2012 11:58 PM

go here and get the information on calculating forces. http://www.atlantadrives.com/pdf/ads_racksel.pdf
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engnewbie
Participant

Join Date: Oct 2012
Posts: 4
#7
In reply to #3

Re: RACK AND PINION QUESTION !!!!

10/23/2012 3:31 PM

thank you for helping, I found that one on google too ... but since my linear motion is too short... I wonder is there any other way I can do it?
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Data Management
Associate

Join Date: Feb 2012
Location: Detroit Metro Area
Posts: 30
#4

Re: Rack and Pinion Question

10/23/2012 8:47 AM

Hi, I have an Excel file where I calculated the drive mechanism for an electrical drive system that included a rack and pinion. The file will help you specify the current draw needed, the gear strengths and stresses, motor size, gearbox (if needed) and a clutch (if needed) but it was developed for a 16V max system. I am sure that you could extrapolate to meet your needs. I will send it to you if you send your email address to me.

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engnewbie
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Join Date: Oct 2012
Posts: 4
#5
In reply to #4

Re: Rack and Pinion Question

10/23/2012 3:23 PM

I am very appreciated it. *

Again, thanks

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Data Management (1); engnewbie (3); fixitorelse (1); lyn (1); Tornado (1)

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