Back to results
US 8,998,732 B2Granted
Device for damping vibrations in a drive train
AssigneeAndritz Inc.
InventorRoman Eichinger
Life of this patent
Estimating the term…
Abstract
A device for damping vibrations in a drive train, in particular for plug screws in the pulp and paper industries. The device is principally characterized in that a cylindrical shaft, preferably designed as a hollow shaft, is provided, wherein the cylindrical shaft is arranged between the halves of a coupling and at least one ring having friction surfaces is arranged around the cylindrical shaft. Stick-slip vibrations that occur can thereby be favorably eliminated, and thus the gearbox and the motor of the drive train can be protected.
Claims4
A device for damping vibrations in a drive train, comprising:
- a cylindrical shaft having opposing ends, each end having a circumferential flange for mounting the device, the circumferential flanges defining a torsion spring element of the device;
- at least one ring arranged around the cylindrical shaft and having friction surfaces on the outside of each of the at least one ring;
- and
- a hollow cylinder arranged around the at least one ring and rotatably engaging the friction surfaces of the at least one ring, the hollow cylinder having slots which extend axially and are arranged around a circumference of the hollow cylinder.
1 more element
Dependencies are inferred from the claim text.