Air gap adjusting apparatus for cylindrical linear motor of an elevator

摘要

An air gap adjusting apparatus for a cylindrical linear motor of an elevator includes a cylindrical upper plate having an internally threaded portion at an inner edge thereof and fixedly mounted on the upper portion of the rotor, a plurality of adjusting units pivotably mounted on the plate member, for adjusting an air gap between an inner surface of the rotor and the outer surface of the stator, and an inverted cone-shaped hollow tapered guide member having a threaded lower portion engaging the plate member and displacing the plurality of adjusting units for thereby adjusting an air gap between an inner surface of the rotor and the outer surface of the stator.