Gearless motorized roller with variable frequency controller

Details Gearless motorized roller with variable frequency controller Gearless motorized roller with variable frequency controller

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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Somfy, Power Moller 8 page brochure, Somfy Systems, Inc., Aug. 16, 1993.
"ITOH Power Moller.RTM. J-Series, JY-Series," Somfy Systems, Inc., Cranbury, NJ, 4 pages.
"ITOH Power Moller.RTM. S-Series," Somfy Systems, Inc., Cranbury, NJ, 4 pages.

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