Lifting device assignment help (1 Viewer)

[morty87]

hey guys hows it going

i was just wondering if anyone has any ideas they can help me through with my lifting device module assignment. Basically we have to make a lifting device which works by the wind blown at it from a household fan 30 cm away from it. Our device must ultimately lift up a minimum amount of 50 grams from the ground 1/2 metre up. It can pretty much be anything i like but i can't use a counter weight, i know it sounds a bit confusing so this thread is really to those of people who have done something similar to this before. any help would be much appreciated.

thnx in advanced

 

[richz]

nope no idea, we arent up to this topic. This thread is very quiet, i can see u had to make a new thread.

 

[Templar]

You'll need something to harvest the wind power. Start with a propeller or similar which will wind the string to lift the weight up and try to build a frame around that.

 

[morty87]

hey thnx alot for the idea, in fact that was pretty much what i had in mind, i was wondering on what material and design i should use for the fan propelar since it's a pretty important part of the device so does anyone have any ideas on what design i should use to gain maximum efficiency and still keep the fan light and not to heavy, any suggestions will be greatly appreciated

thnx

 

[morty87]

hey guys, i've sort of got an idea of what i want it to look like, this is a quick design i did in paint brush but u get the idea. Does anyone have any suggestions for the fan propellar design, i need it to be light, and easy to spin

 

[steeve]

Maybe implement some kind of gear / pulley system to gain a higher velocity ratio so u can lift something heavier.

I guess u can always make the stick that the propeller is connected to thicker in diameter to produce more torque.