Title:
MOTORIZED DRUM SHELL ARRANGEMENT
Document Type and Number:
WIPO Patent Application WO/2013/023203
Kind Code:
A3
Abstract:
A motorized drum having a drum shell with a motor therein, the motor having a stationary shaft, stator windings, and a stator support structure that is affixed to the stationary shaft. A rotor rotates coaxially around the stator, and a cycloidal reducer has an output that rotates at a reduced rate. The reducer output is rotationally fixed to, and is disposed within, the drum shell. An input gear of the reducer received a hollow eccentric input shaft, and is urged into eccentric motion as the input shaft rotates. The output gear urges the drum shell into rotation at same rate of rotation as the output gear. An harmonic drive speed reducer that has an input shaft provides rotatory motion to a wave generator that is disposed against a flexible splined member. The flexible splined member engages a rigid circular spline member at two radially opposed zones. Induction and permanent magnet forms of operation are used.
Inventors:
PAULIDES JOHAN H (NL)
DEGROOT MICHAEL HENDRIK (US)
HULSHOF GERKO (NL)
POPESCU MIRCEA (GB)
DEGROOT MICHAEL HENDRIK (US)
HULSHOF GERKO (NL)
POPESCU MIRCEA (GB)
Application Number:
PCT/US2012/050501
Publication Date:
April 25, 2013
Filing Date:
August 13, 2012
Export Citation:
Assignee:
MOL BELTING SYSTEMS INC (US)
PAULIDES JOHAN H (NL)
DEGROOT MICHAEL HENDRIK (US)
HULSHOF GERKO (NL)
POPESCU MIRCEA (GB)
PAULIDES JOHAN H (NL)
DEGROOT MICHAEL HENDRIK (US)
HULSHOF GERKO (NL)
POPESCU MIRCEA (GB)
International Classes:
H02K21/22
Domestic Patent References:
| WO1999000317A1 | 1999-01-07 | |||
| WO2005051809A1 | 2005-06-09 |
Foreign References:
| EP1742333A1 | 2007-01-10 | |||
| US7049718B2 | 2006-05-23 | |||
| US3975973A | 1976-08-24 |
Other References:
See also references of EP 2742582A4
Attorney, Agent or Firm:
ROHM, Benita, J. et al. (PLC12 Rathbone Plac, Grosse Pointe MI, US)
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