Segmented vibration absorber
AssigneesZF Friedrichshafen AG, Zf Wind Power Antwerpen N.V., Vestas Wind Systems A/S
InventorsWim De Laet, Ben Marrant, Frederik Vanhollebeke
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Abstract
A vibration absorber for securely fixing to the housing of a gearbox includes an absorber mass having a first group of segments that are rotationally symmetrical to one another with respect to a rotational axis and/or central axis of the gearbox. The segments can be rigidly connected to one another. The vibration absorber can further include connectors that are rigidly connected to two segments each.
Claims15
A vibration absorber for securely fixing to the housing of a gearbox;
- comprising:
- an absorber mass having a first and second group of segments, the segments of each group being rotationally symmetrical to one another with respect to a rotational axis and/or central axis of the gearbox;
- wherein the segments of the first group are rigidly connected to one another and the segments of the second group are rigidly connected to one another,
- wherein the segments of the first group are configured to be stacked with segments of the second group in an axial direction, and
- wherein the segments of the first group are coplanar with one another in a first plane orthogonal to the axial direction such that the segments of the first group map onto one another within the first plane by rotation about the rotational and/or central axis.
A gearbox, comprising:
- at least one ring gear;
- and
- at least one vibration absorber for securely fixing to a housing of the gearbox, including:
- an absorber mass having a first and second group of segments, the segments of each group being rotationally symmetrical to one another with respect to a rotational axis and/or central axis of the gearbox,
- wherein the segments of the first group are rigidly connected to one another and the segments of the second group are rigidly connected to one another,
- wherein the segments of the first group are configured to be stacked with segments of the second group in an axial direction,
- wherein the vibration absorber is fixed to the ring gear.
A vibration absorber frame for securely fixing to the housing of a gearbox, comprising:
- a first group of frame segments, each of the frame segments having a smooth circular inner radius about a rotational axis for enclosing a shaft and flat polygonal outer surfaces,
- wherein the frame segments are rotationally symmetrical to one another with respect to the rotational axis and/or a central axis of the gearbox, and
- wherein the frame segments are coplanar with one another in a plane orthogonal to the rotational and/or central axis such that the frame segments map onto one another within the plane by rotation about the rotational and/or central axis.
Dependencies are inferred from the claim text.