- #1
Saladsamurai
- 3,020
- 7
I am trying to figure out how to design a stair-climbing device similar to a hand-cart that climbs stairs.
I know that the loading will be ~500 lb.
It uses a 3-wheel climbing design design like http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200381541_200381541" except motorized.
I am trying to figure out how much torque I will need at the output of the gear box. I am assuming that this is simply a function of the distance from the climbing-wheel to the loading.
I also would like to figure out what size motor would work in that it should be relatively small and run off of a reasonably small portable power source.
I have no real design experience, so I was hoping for some input/advice.
What kind of small portable motors are out there and where can I see their specs?
What kind of power sources are out there?If my questions are not that clear, let me know and I will try to elaborate.
Thanks,
Casey
EDIT to help put this into better perspective, the motor is to power a 3-wheeled design like the one shown above, but it is to be used on an Ambulance Gurney (stretcher) to assist in moving 'larger' people up and down stairs.
I know that the loading will be ~500 lb.
It uses a 3-wheel climbing design design like http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200381541_200381541" except motorized.
I am trying to figure out how much torque I will need at the output of the gear box. I am assuming that this is simply a function of the distance from the climbing-wheel to the loading.
I also would like to figure out what size motor would work in that it should be relatively small and run off of a reasonably small portable power source.
I have no real design experience, so I was hoping for some input/advice.
What kind of small portable motors are out there and where can I see their specs?
What kind of power sources are out there?If my questions are not that clear, let me know and I will try to elaborate.
Thanks,
Casey
EDIT to help put this into better perspective, the motor is to power a 3-wheeled design like the one shown above, but it is to be used on an Ambulance Gurney (stretcher) to assist in moving 'larger' people up and down stairs.
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