Is the Calculation of Torque to Lift 100kg Accurate?

[geek743]

Hi all,
Please note this is not a home work.
Working on a NPD.Please look at the jpeg file

I have done few basic calculations to find torque to lift 100kg
F=Ma
F=100x9.81
F=981N

Torque=Force x Distance
T=981x.77
T=755Nm

The torque on the gearbox output shaft required to lift is 755Nm

Is this calculation correct?

Any help on this is much appreciated

Regards
Geek743

 

[Shockman]

Hi
Is this question still open? I do not really understand your drawing but i think there is a problem with your calculations. Please explain how should work your device.

 

[carsy7]

I think you need to provide more info with your drawing and how it works. remember Torque = Fdsin(x) I believe you need to consider the angle as well, but I'm not entirely sure how this works either

 

[Jones1987]

This link may help.

http://forums.trossenrobotics.com/archive/index.php/t-2900.html

If what you are after is the torque required to move a mass uphill without stall, someone has gone through the calc for you.