Methods and apparatus for balancing armatures during coil windin

Details Methods and apparatus for balancing armatures during coil windin Methods and apparatus for balancing armatures during coil windin

1994-09-23

1997-05-13

Matecki, Katherine

Winding, tensioning, or guiding

Composite article winding

On externally toothed core

29596, H02K 1509

Patent

active

056284721

ABSTRACT:
The balance of rotors for dynamo-electric machines (e.g., electric motor armatures), which are wound with two diametrically opposite, simultaneously applied coils of wire, is improved by ensuring that wire is fed to both coils in substantially similar quantities. This can be accomplished by monitoring the lengths of the two wires as they are fed to the armature using wire sensors located adjacent to the flyer. Alternatively, wire sensors can be provided to monitor the rate at which wire is being fed towards respective flyers and to measure the rate of change of the lengths of those portions of the wires that are supported by the winding machine dancer arms. A control system processes the measurements from these sensors. A wire tensioner having a hysteresis clutch is also provided that allows the tension applied to a wire being wound to be adjusted rapidly. The wire tensioner also picks up slack that may develop in the wire.

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Product Brochure, Magtrol Corporation, Buffalo, New York (Apr. 1994).

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