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US 4,003,265 AGranted
Mass balancing system for rotatable assemblies
AssigneeLitton Systems, Inc.
InventorsRobert Jerzy G. Craig, Clifton Temple Council
Life of this patent
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Abstract
Disclosed herein is an arrangement for counteracting mass unbalance in a rotatable assembly, such as the rotor assembly of a gyroscope. The invention proposes the use of two coaxially and mutually independently rotatably displaceable, mass eccentricity-producing balance weights, of which each can be assembled with a support element forming part of the rotatable assembly in any one of a great number of angular orientations.
Claims5
A gyroscope, comprising
- a rotor mounted for rotation about axis;
- a pot-shaped hysteresis ring support forming part of said rotor;
- a stop plate of the rotor accommodated in said hysteresis ring support, said stop plate having a recess defined by radially inwardly oriented surface locations surrounding and facing said axis;
- at least two substantially identically shaped balance weights for assembly with said stop plate accommodated within said recess by virtue of frictional engagement of peripheral areas of the balance weights with said radially inwardly oriented surface locations;
- each balance weight having an asymmetrical mass distribution with respect to said axis when assembled with said stop plate;
- and
- spring means associated with each balance weight for resiliently urging at least some peripheral areas of each said balance weight outwardly, to thereby removably retain each of the balance weights assembled with said stop plate in any one of a great number of angular orientations rotationally displaced one from the other about said axis.
4 more elements
Dependencies are inferred from the claim text.