Arrangement for a rail vehicle
AssigneeSiemens Mobility GmbH
InventorsChristoph Adam, Peter Seitz
Life of this patent
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Abstract
An arrangement for a rail vehicle has an electric hollow-shaft motor with a hollow rotor and a wheelset shaft that runs through the hollow rotor. The rotor is separated from the wheelset shaft at least in certain sections by a radial air gap which ensures a mechanical clearance between the wheelset shaft and the rotor. A protective material is arranged in the region of the radial air gap between the rotor and the wheelset shaft. The protective material, in the event of failure of a motor fastening of the hollow-shaft motor and subsequent support of the rotor on the wheelset shaft, separates the rotor from the wheelset shaft. The protective material is softer than the material of the wheelset shaft and softer than at least one material of the rotor.
Claims18
An arrangement for a rail vehicle, comprising:
- an electric hollow-shaft motor having a hollow rotor;
- a wheelset shaft extending coaxially through said hollow rotor, said rotor being separated from said wheelset shaft at least in part by a radial air gap formed to ensure a mechanical play between said wheelset shaft and said rotor;
- protective material disposed in said radial air gap between said rotor and said wheelset shaft and configured, in an event of a failure of a motor fastening of said hollow-shaft motor and a subsequent support of said rotor on said wheelset shaft, to separate said rotor from said wheelset shaft, said protective material being softer than a material of said wheelset shaft and softer than at least one material of the rotor.
Dependencies are inferred from the claim text.