how to drive a dynamo

[priyankakukade]

need to drive a dynamo by rotating a wheel?is it possible?what are ways to connect it?

 

[dknguyen]

It is possible, this is how turbines work.

There are gears between the wheel and dynamo input shaft to increase the RPM and reduce the torque if whatever is spinning the wheel has too much force but not enough speed, or gears to decrease the RPM and increase the torque if whatever is spinning the wheel has too much force but not enough speed to drive the dynamo.

THen you stick whatever you need to onto the wheel to harness the force. A propeller if it's wind, a handle if it's your arm, tires if it's being pushed on the ground, etc.

 

[rjvh]

need to drive a dynamo by rotating a wheel?is it possible?what are ways to connect it?

Conect it to what???

the dynamo has a shaft and you want to pot a rotation motion on it

the source also need a rotating motion

now it depents on the size and forces and speeds that are involved what type of conection is desired

if slip in the conection is not aloud than you can work with sprockets and a chain or a belt with teeth (also need sprockets)

the different nr in teeth of the sprockets will give you a speed de/increase and a in/decrease of torque (gearbox)

you also can work with disc's and belts or disc on disc

slip can be avoided till sertain exstend but you can use this feature as a safety measure (don't design it as one but it's a nice extra)

Robert-Jan

 

[Boncuk]

A dynamo (bicycle) can be made to turn by applying 6VAC to it. Give it an initial spin, so it knows which direction it has to rotate. It behaves like a synchronous motor, and has low torque.

A chain with sprockets will probly just be driven without any further mechanical load.

You can make an experiment using the dynamo of your bicycle. Apply AC and spin the wheel. The dynamo will then work as motor.

Boncuk