Construction of a mechanical speed bump

Simulation Generality
1

Hello 

My project is to create a model of a speed bump that can recover the car's kinetic energy by converting a mechanical movement into electrical energy.

I want to get inspired by this video: https://www.youtube.com/watch?v=2ZyJ5fZzgWw

                                                              title on youtube: Electricity from road with kinetic energy. Video 2.flv

I understood the ratchet sprocket system (pinion that can only rotate in one direction), the speed system (pinion getting smaller and smaller).

However, I don't understand how the shaft can rotate in the bore of the pinion without driving it, how the sprockets of the second speed bumps are not driven with the impulse of the first descent of the first speed bump?

I hope I'm clear enough...

Thank you for your help

Kind regards

A student in need of knowledge

2 Likes
2

In any case, it's a very good idea!

 

Good luck with your project =)

2 Likes
3

I think there is this in the same principle:

 

http://www.energy-floors.com/sustainable-dance-floor/

4

You probably have to put anti-reverse bearings (one direction of rotation) on the pinion facing the rack and the same type of bearing but reversed direction to hold your axle.

It's the same principle as a bicycle sprocket

See freewheeling.

4 Likes
5

Hello

 

These are called freewheels.

http://www.schaeffler.fr/content.schaeffler.fr/fr/branches/industry/sports_fitness/prod_sports/drawn_cup_r_clutches/drawn_cup_r_clutches.jsp

S.B

3 Likes
6

Hello 

So if I understood correctly, you just have to integrate a freewheel system into the sprocket? 

7

Exactly.

If you want to enjoy the full movement, you mount your freewheels in 2 bevel gears mounted head-to-toe on the axis of the generator (if I wasn't mistaken...)