Ore grinding mill with wrap-around electric motor

Details Ore grinding mill with wrap-around electric motor Ore grinding mill with wrap-around electric motor

H - Electricity

02

K

310/36, 241/81

H02K 7/14 (2006.01) B02C 17/24 (2006.01)

Patent

CA 1192590

ABSTRACT OF THE DISCLOSURE A rotary apparatus, such as an ore grinding mill, has a wrap-around drive means secured thereto for rotating the apparatus about a central axis. The drive means includes a rotor attached to and surrounding the apparatus and a stator surrounding the rotor and coupled to the apparatus by spaced anti-friction or journal bearings. Thus, the rotor can rotate relative to the stator yet the stator is supported by the apparatus and the yap between the rotor and stator is maintained substantially uniform at all circumferential locations along the rotor. The journal bearings include a number of wheels or rollers journalled on an annular carrier for the stator and engaging an annular track on the apparatus. The stator has a pair of legs for coupling the stator to a fixed support to prevent rotation of the stator about the central axis relative to the support yet permit small lateral displacements of the stator with the apparatus relative to the axis support.

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