Direct drive for a rotation machine, particularly for a container treatment machine
US9653963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2013 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Nov 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K26/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct drive for a rotation machine, particularly for a container treatment machine, this drive including a fixed machine part (1) and a machine part (2) rotating around a vertical machine axis, wherein the rotating machine part (2) is rotationally connected to the fixed machine part (1) by a roller bearing (3) arranged between the two machine parts (1, 2) and having an outer bearing ring (4), an inner bearing ring (5) and a plurality of rolling elements rolling between said bearing rings (4, 5), and can be driven by a torque motor (7). On the rotating machine part (1), a plurality of magnets (8) is provided, surrounding the rotating machine part, while on the fixed machine part (1), a stator (12) formed of a plurality of electric coils (9, 10, 11) is arranged, such that the rotating machine part (2) can be set in a defined rotational motion through an electromagnetic field generated when the stator (12) is energized in cooperation with the magnets (8). The stator (12) on the fixed machine part (1) is formed as a full ring of 360° covering, without gaps, all magnets (8) on the rotating machine part (2), this full ring being composed of a number of stator ring segments (13.1, 13.2…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.