Thrust ring frictional damper
AssigneeHamilton Sundstrand Corporation
InventorsEthan Roberts, Aaron Cooling
Life of this patent
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Abstract
A system includes a rotor shaft rotatable about an axis, a disconnect shaft nested at least partially within an interior of the rotor shaft, and a journal shaft selectively rotatably coupled to the disconnect shaft. A vibration damping mechanism is arranged between the rotor shaft and the journal shaft. The vibration damping mechanism includes a thrust journal bearing affixed to the rotor shaft and a thrust washer mounted to the journal shaft. A biasing mechanism is operably coupled to disconnect shaft to bias the thrust washer into frictional engagement with the thrust journal bearing.
Claims19
A system comprising:
- a rotor shaft rotatable about an axis;
- a disconnect shaft nested at least partially within an interior of the rotor shaft, the disconnect shaft having a radial flange;
- a journal shaft selectively rotatably coupled to the disconnect shaft;
- a vibration damping mechanism arranged between the rotor shaft and the journal shaft, the vibration damping mechanism including a thrust journal bearing affixed to the rotor shaft and a thrust washer mounted to the journal shaft;
- and
- a biasing mechanism operably coupled to the disconnect shaft to bias the disconnect shaft to move axially toward the journal shaft and bias the thrust washer into frictional engagement with the thrust journal bearing, the biasing mechanism being engaged with the radial flange and a surface of the rotor shaft.
A method of assembling a vibration damping assembly comprising:
- providing a journal shaft;
- providing a collar and at least one thrust journal bearing affixed to the collar, the collar being connectable to a rotor shaft and the journal shaft being nested within the rotor shaft;
- aligning a thrust washer with an end of the journal bearing;
- and
- pressing the thrust washer onto the journal bearing to a position where the thrust washer is engaged with the at least one thrust bearing.
A system comprising:
- a rotor shaft rotatable about an axis;
- a disconnect shaft rotatable about the axis and nested with the rotor shaft;
- a journal shaft configured to rotate about the axis in unison with the rotor shaft, the journal shaft being selectively couplable to the disconnect shaft;
- a vibration damping mechanism arranged between the rotor shaft and the journal shaft, the vibration damping mechanism including a thrust journal bearing affixed to the rotor shaft and a thrust washer mounted to the journal shaft;
- and
- a biasing mechanism operably coupled to the disconnect shaft, wherein the thrust washer is biased into engagement with the thrust journal bearing when the disconnect shaft and the journal shaft are coupled.
Dependencies are inferred from the claim text.