Extraction physics

[wessexmario]

In the man-shed this morning I found I may have enough bits & pieces to make a motorised extractor (old washing machine motor, bits of aluminium etc)

As the centrifugal force required depends on angular speed and radius, and I won't want it to spin too slow or fast, knowing the rotational speed and frame radius for extractors out there will be a great help, anyone? thanks.

 

[user 6228]

In the man-shed this morning I found I may have enough bits & pieces to make a motorised extractor (old washing machine motor, bits of aluminium etc)

As the centrifugal force required depends on angular speed and radius, and I won't want it to spin too slow or fast, knowing the rotational speed and frame radius for extractors out there will be a great help, anyone? thanks.

centripetal acceleration

 

[Travelator]

Variable speed 30-100 rpm with plenty of torque to get moving?

 

[Thymallus]

9 frame radial extractor has diameter of approx 440mm for the cage.

 

[jonnybeegood]

2 X the drum diameter x the depth of the drum, divide by the motor ampage, x the max speed of the motor add to this the amount of frames you wish to spin, then if you want to vary the speed add 42. This will give you a really bad headache

 

[Anduril]

centripetal acceleration

So as an example 2m/s
Thymallus with his extractor radius 0.22m
a= v*v/r =4/0.22=18.18m/s 2
18.18 metres per second squared