Dynamic rotational counterbalance structure
First Claim
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1. 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.
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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.
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Citations
8 Claims
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1. A dynamic rotational counterbalance flywheel for balancing a rotating mass comprising:
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(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. - View Dependent Claims (2, 3, 4)
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5. A dynamic rotational counterbalance arrangement for balancing an elongated rotating shaft comprising:
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(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. - View Dependent Claims (6, 7, 8)
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Specification