Dynamic rotational counterbalance structure
OwnerRonald B. Kilgoreinventor
Life of this patent
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Abstract
A dynamic rotational counterbalance structure includes a discoid balance body having a groove or race formed in an outer circumferential surface of the body. A plurality of movable weights such as spherical weights are positioned in the groove along with a lubricating and noise damping fluid. The groove is closed by an outer circumferential band. At least two of the balance structures are affixed coaxially on a rotatable member to be balanced. During rotation of the member so balanced, the weights shift circumferentially to offset unbalancing forces which influence the rotating member.
Claims8
A dynamic rotational counterbalance flywheel for balancing a rotating mass comprising:
- (a) a discoid counterbalance body attached coaxially to a mass rotatable about an axis of rotation;
- (b) an outer circumferential groove formed in said body;
- (c) a plurality of movable weight means positioned within said groove, said weight means being sized and shaped to move freely about said groove;
- and
- (d) a continuous outer circumferential band positioned in surrounding relation to said body to cover and enclose said groove.
A dynamic rotational counterbalance arrangement for balancing an elongated rotating shaft comprising:
- (a) an elongated shaft rotatable about an axis of rotation;
- (b) at least two self-balancing flywheel members, each flywheel member including:
- () a discoid counterbalance body having an axis of rotation and an outer circumferential surface;
- (2) an outer circumferential groove formed in said outer surface of said body;
- (3) a plurality of movable weight means positioned within said groove, said weight means being sized and shaped to move freely about said groove;
- and
- (4) a continuous outer circumferential band positioned in surrounding relation about said body to enclose said groove;
- and
- (c) said flywheel members being affixed in coaxial relation to said shaft at longitudinally spaced positions thereon.
Dependencies are inferred from the claim text.