Conveyors: power-driven – Conveyor section – Live roll
Patent
1997-09-16
1999-07-06
Terrell, William E.
Conveyors: power-driven
Conveyor section
Live roll
198784, B65G 1306
Patent
active
059187280
ABSTRACT:
A drive roller for a conveyor is rotated by a brushless D.C. motor without any intervening gear reducer. The drove roller has a laminated metal stator with at least three windings external to the stator core. The stator is fixed to a rigid axially extending shaft which supports a roller tube and a permanent magnet rotor on bearings. The rotor is fixed to the roller tube and closely spaced from the stator. A variable frequency power supply controls the induced magnetic field in the stator to control the rotational speed of the drive roller.
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Deuble Mark
Motion Systems, L.C.L.L.C.
Terrell William E.
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