Is it possible to introduce torque on a lead screw (with no magnets attached to it) with a moving magnet that can only move parallels to the screw?
(the lead screw is ferromagnetic)
Something like that:
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Sign up to join this communityIs it possible to introduce torque on a lead screw (with no magnets attached to it) with a moving magnet that can only move parallels to the screw?
(the lead screw is ferromagnetic)
Something like that:
Yes, it is POSSIBLE but it's not very practical.
Take a look at how switched reluctance motors work. Essentially, torque is generated by the motion of the soft magnetic material to align itself with the magnetic field lines. You're using a hard magnetic material (ferromagnetic), but the approach is essentially the same.
IT would work a lot better if you can introduce some level of asymmetry to your screw cross sectional area, but if you don't want to do that, you can get an effective elongated magnetic profile by aligning your stators with the thread pitch of your screw.