OPENTECHNICAL PUBLICATION
OT-2026-000001540

Elliptical drive

Published: 2026-09-15T19:06:33.151982Z
Permanent URL: https://opentechnical.org/p/OT-2026-000001540
Categories: Industrial Motion & Power Transmission > Rotary Motion

------------------------------------------------------------------------

ABSTRACT

In some examples, an elliptical drive adjusts a phase angle of unbalanced
shafts or weights of a vibrating screen. The elliptical drive may include a
yoke assembly including four plates that allows relative rotation of two
shafts that in turn adjust the phase angle. One of the two shafts may have a
pulley drive driven by a motor. The elliptical drive may include two gears
intermeshed with each other hand having respective hubs with helical splines
that mate with corresponding helical splines of the two shafts. Rotating an
actuator rod may cause the two gears to move in an axial direction of the two
shafts thereby rotating the two shafts relative to one another which in turn
causes a phase angle adjustment of the unbalanced weights or shafts of the
vibration mechanism of the vibrating screen.

------------------------------------------------------------------------

OpenTechnical publication OT-2026-000001540
Published 2026-09-15T19:06:33.151982Z
https://opentechnical.org/p/OT-2026-000001540