Machine element or mechanism – Elements – Flywheel – motion smoothing-type
Patent
1990-08-20
1991-04-16
Smith, Gary L.
Machine element or mechanism
Elements
Flywheel, motion smoothing-type
73470, 51169, F16F 1522
Patent
active
050073052
ABSTRACT:
A dynamic ring balancer for a machine shaft, including an annular case fixedly attachable to the shaft with a central aperture sized to receive the shaft therethrough. The case has an annular chamber extending about the case aperture and containing a pair of eccentrically weighted balancing rings rotatably mounted within the annular chamber. The rings are rotatable relative to each other and the case. A pair of turbine wheels are mounted at an outer wall of the case and are each selectively rotatable in both rotational directions in response to engagement by pressurized air flows. The air flows for each wheel are selectively applied by a stationary manifold as the wheels pass by the manifold while revolving with the case. A pair of reduction gear assemblies are mounted within the case and each drivably interconnects one of the wheels and the corresponding ring to convert rotation of the wheel into rotation of the ring. Through selective rotation of the wheels, the rings are progressively and independently rotated until the shaft is dynamically balanced. Thereafter, the reduction gear assemblies hold the rings locked in position until further adjustment of the rings is desired. In an alternative embodiment friction engagement wheels are used.
REFERENCES:
patent: 4867006 (1989-09-01), Giberson
Saether F.
Schmitt Industries, Inc.
Smith Gary L.
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