Rotary apparatus having improved drive means

Details Rotary apparatus having improved drive means Rotary apparatus having improved drive means

1982-08-02

1984-11-13

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Combined or convertible

241178, B02C 1724

Patent

active

044820976

ABSTRACT:
A rotary apparatus, such as an ore grinding mill, has a wrap-around drive motor secured thereto for rotating the apparatus about a central axis. The drive motor includes a rotor attached to and surrounding the apparatus and a stator surrounding and spaced from the rotor and coupled to the apparatus by anti-friction or journal bearings. Thus, the rotor can rotate relative to the stator yet the stator is supported by the apparatus and the gap 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 mounted 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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