Patent ID: 6710491
Filing Date: 2004-03-23
Classification: H02K

Abstract:
A roller device with dynamic function, comprising:at least one roller unit, said roller unit provided with a shaft rod having its opposite ends immovably fixed, said shaft rod closely fitted through a coiled stator unit, said coiled stator unit including at least two silicon steel stators wound with a coil respectively, said two silicon steel stators having a center separating ring provided therebetween and a side separating ring at the outermost end of each silicon steel stators; said coiled stator unit covered by a tubular-shaped magnet rotor unit, said magnet unit comprising two semi-tubular-shaped casings, said casing having a plurality of magnets corresponding with said silicon steel stators axially and biasly positioned in the inner recessed wall, said casings covering said coiled stator unit and combined together by bolts; said magnet rotor unit provided with a combination unit at opposite ends thereof, said combination unit having a bearing fitted around the outer side of said coiled stator unit and a bearing outer cover screwed on the opposite ends of said magnet rotor unit, said roller unit comprises gaps between said magnets and gaps in said silicon steel stators, said magnet rotor unit rotating around said coiled stator unit when said coiled stator unit is electrified; and the magnets are axially and biasly positioned and the gaps therebetween form an axially oblique line, and the gaps of the silicon steel stators form an axially straight line.