Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-06-02
1995-04-11
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 91, H02K 500, H02K 504, H02K 526
Patent
active
054061563
ABSTRACT:
An electrodynamic machine, such as an electric induction motor (10), has a frame (12); at least one bearing housing (16) attached to the frame, including a bearing (18); and a shaft (14) rotatively mounted to the bearing within the frame. A second housing, such as a fan housing (20), defines at least one generally tapered, mating shoulder surface (24). The second housing is attached to the bearing housing along a fixed reference plane with respect to the shaft centerline. The device has at least one fastener (26, 28) defining a generally tapered shoulder surface (40), which abuts the corresponding second housing shoulder surface (24) as the fastener is tightened. At least one of the abutting second housing (24) and fastener (40) shoulder surfaces defines a convex tapered portion and the other of the respective abutting shoulders (24, 40) defines a concave tapered portion, so that tightening the fastener registers the second housing portion along the reference plane. The motor achieves self-registration of the housing with respect to a desired reference plane as the housing is installed during manufacture or reinstalled during subsequent servicing, so that instrumentation devices, such as tachometers (42), that are attached to the housing are registered in a desired position with respect to the reference plane.
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LaBalle Clayton E.
Luccarelli, Jr. Peter A.
Siemens Energy & Automation Inc.
Stephan Steven L.
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