Lamination to rotor shaft retention method utilizing spring pins
First Claim
1. A lamination stack device used with a prime mover, the prime mover being a shaft, the lamination stack device comprising:
- (a) pin means including a plurality of elongated, resilient spring pin members; and
(b) a plurality of laminates;
each of said laminates having an inner edge defining an opening for receiving the shaft;
said laminates cooperating such that said laminates can be stacked one adjacent to another in series;
each of said laminates including notch means in said inner edges thereof for receiving said pin means;
wherein said pin means are received in said notch means and in axially extending groove mean in the shaft, said pin means cooperating with the shaft and the inner edges of said plurality of laminates, when said laminates are stacked, to prevent relative rotational slippage therebetween.
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Accused Products
Abstract
A lamination stack assembly comprising elongated, resilient spring pin members for exerting radially outward force when in deformed states, each laminate having an inner edge defining an opening for receiving the shaft. The spring pin members are disposed axially along the shaft intermediate of its outer surface and the inner edge of the laminates, and cooperate with the shaft and the inner edges of the laminates to prevent relative rotational slippage of the laminates with respect to the shaft. The shaft preferably includes axially extending grooves for receiving the spring pin members which cooperate with notches in an inner edge of each of the laminates to receive the spring pin members. Each of the spring pin members preferably includes a hollow cylinder having an exterior wall defining an axially extending gap in the wall, wherein the gap varies in width from a normal state to a deformed state. Preferably, the spring pin members are made of hardened steel.
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Citations
26 Claims
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1. A lamination stack device used with a prime mover, the prime mover being a shaft, the lamination stack device comprising:
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(a) pin means including a plurality of elongated, resilient spring pin members; and (b) a plurality of laminates;
each of said laminates having an inner edge defining an opening for receiving the shaft;
said laminates cooperating such that said laminates can be stacked one adjacent to another in series;
each of said laminates including notch means in said inner edges thereof for receiving said pin means;
wherein said pin means are received in said notch means and in axially extending groove mean in the shaft, said pin means cooperating with the shaft and the inner edges of said plurality of laminates, when said laminates are stacked, to prevent relative rotational slippage therebetween. - View Dependent Claims (4)
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2. A rotational apparatus comprising:
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(a) a rotational member including an outer surface and axially extending groove means in said outer surface; (b) a sleeve member including an opening for receiving said rotational member, and a radially facing inner edge, said sleeve member further including axially extending notch means in said radially facing inner edge; and (c) elongated, resilient spring pin means for exerting radially outward force when in deformed states, said spring pin means being axially received in said groove means and said notch means, said spring pin means cooperating with said groove means and said notch means to prevent relative rotational slippage between said rotational member and said sleeve member;
wherein said sleeve member includes a plurality of laminates which are stacked one adjacent to another in a linear series to form a stack of laminates extending axially along said shaft, and wherein said radially facing inner edge includes a series of inner edges in each of said laminates. - View Dependent Claims (3, 23, 24, 25, 26)
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5. A lamination stack assembly comprising:
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(a) elongated, resilient spring pin means for exerting radially outward force when in deformed states; (b) a rotational member having an outer surface; and (c) a plurality of laminates, each of said laminates having an inner edge defining an opening for receiving said rotational member, said spring pin means being disposed axially along the rotational member intermediate of the outer surface of the rotational member and the inner edges of the laminates and cooperating with said rotational member and the inner edges of said plurality of laminates to prevent relative rotational slippage of said laminates with respect to said rotational member. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An exciter armature device comprising:
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(a) a plurality of elongated, resilient spring pin members; (b) a rotational member having an outer surface; and (c) a plurality of laminates;
each of said laminates having an inner edge defining an opening for receiving said rotational member;
said plurality of laminates being stacked one adjacent to another to form a stack of laminates receiving said rotational member such that said rotational member extends axially through said stack of laminates;
said plurality of spring pin members being axially disposed intermediate of said rotational member and said stack of laminates, and cooperating with said rotational member and said stack of laminates to prevent relative rotational slippage of said laminates with respect to said rotational member. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification