Title: Method of making mounting assembly for laminated rotor rim of dynamoelectric generator rotatable about inclined shaft

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Abstract: A rotor assembly for a dynamoelectric generator having a spider sub-assembly that is rotatable around a non-vertical axis; characterized by having a plurality of articulated key assemblies positioned in aligned keyways formed, respectively, in the circumferential surface of the spider sub-assembly and in the inner circumferential surface of an annular laminated rotor rim. A base member in each of the key assemblies is formed to exceed by a predetermined length the normal, i.e., unheated, spacing between the rotor rim and the spider. The rotor rim is heated to expand it radially so the base members of the key assemblies can be inserted in the aligned axial keyways in the rim and spider, then the rim is cooled to heat-shrink it against the base members of the key assemblies. Pairs of tapered wedge keys are installed on opposite sides of the neck portions of each T-shaped base member of the respective key assemblies thereby to secure the laminations of the rim in aligned position and to lock the rim against tangential movement relative to the spider.


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