Vibrating conveyor.

The blue part vibrates under centrifugal forces created by two shafts carrying eccentrics. Vibration characteristics depend on

- rotation direction and velocity of the shafts,

- angle A between the eccentrics on each shaft

- angle B between the eccentrics between the shafts (set before moving).

For this case there are vibrations in both directions when

- The shafts rotate in opposite directions

- A = 90 deg.

- B = 180 deg.

The green line is locus of a point on the blue part (nearly a slant line).