JPS54159630A - Tightening device for winding of induction electric equipment - Google Patents

Abstract

PURPOSE: To make a tightening pressure, given to the winding, not affected due to the secular change of an insulator, by intermediately placing an elastically tightening material of arc-shape between the tightening insulator, provided at an end face part of the winding, and the core tightening metal.

CONSTITUTION: At the end face part of a winding 3, installed to a core 1, is arranged an insulator 4, with a tightening insulator 5 mounted to the outside of the end face. And between a tightening metal 2 of the core 1 and the tightening insulator 5, is installed an elastically tightening material 6 of arc-shape, with the center part of expanding side of the arc-shape elastically tightening material 6 fixed to the side of the tightening metal 2, and to the both end parts is installed a retaining metal 7 contacted to the tightening insulator 5. In this way, even for the winding 3, the insulator 4 and the like shrinking due to the secular change, a gap is never produced between the tightening insulator 5 and the retaining metal 7, always capable of keeping the tightening pressure within a constant range.

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