Vibration dampener for a rotating shaft
First Claim
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1. A vibration dampener for a rotating shaft, comprising:
- (a) a housing adapted to be rigidly mounted to the shaft;
(b) an inertia disc rotatably mounted within the housing and supported in the housing by an elastomeric material engaging the housing and the disc; and
(c) a bearing linking the shaft to the disc and, permitting the inertia disc to pivot about an axis of rotation of the shaft and about axes transverse to the axis of the shaft.
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Abstract
A drive shaft vibration dampener having an outer cylindrical housing which attaches to the end of the drive shaft. An inertia disc mounts within the housing, mounting to the housing through a spherical bearing which permits rotational and radial displacement of the inertia disc relative to the housing. A cover plate encloses the internal chamber housing the inertia disc, and the internal chamber is filled with elastomeric urethane. As the drive shaft deflects radially, the inertia disc lags behind, compressing the urethane and exerting a counteracting radial force on the housing, and the rigidly attached drive shaft.
38 Citations
10 Claims
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1. A vibration dampener for a rotating shaft, comprising:
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(a) a housing adapted to be rigidly mounted to the shaft; (b) an inertia disc rotatably mounted within the housing and supported in the housing by an elastomeric material engaging the housing and the disc; and (c) a bearing linking the shaft to the disc and, permitting the inertia disc to pivot about an axis of rotation of the shaft and about axes transverse to the axis of the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification