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Author Topic: minimum torque for 20kg (53pound) robot  (Read 1131 times)

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Offline french guyTopic starter

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minimum torque for 20kg (53pound) robot
« on: October 05, 2010, 09:59:34 AM »
I'm wondering if the tracked robot I'm building will have enough torque...
It weighs 20kg( really max)
wheels radius (wheels and tracks) 4.5cm  1.8in
I have 2 motors giving 2000 rpm, 0.2n.M 28.3in-ozf
I wanted to use a 1:1 ratio for doing speed, and a 2:1 for climbing. max speed at 1:1 about 20kmh, 12mph.
but surprise, when I try stopping the motor with my hand, I don't feel its that powerfull, and its getting me worried a bit for the capacity of the robot. I have a bit of place for a few pulleys to do a gearbox if needed, cause I'd like to try making it going up stairs.
So, here is my question: What minimum ratio do you thing It needs, to be unstopable?
If some of you have allready compared torque, weight...
Thanks a lot,
Samuel

Offline Webbot

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Re: minimum torque for 20kg (53pound) robot
« Reply #1 on: October 05, 2010, 12:23:48 PM »
Webbot Home: http://webbot.org.uk/
WebbotLib online docs: http://webbot.org.uk/WebbotLibDocs
If your in the neighbourhood: http://www.hovinghamspa.co.uk

Offline french guyTopic starter

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Re: minimum torque for 20kg (53pound) robot
« Reply #2 on: October 06, 2010, 09:15:40 AM »
That's perfect!
Thanks

 


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