A transformer winding drying constant voltage device

Abstract

The invention discloses a constant pressure device for drying of transformer windings, comprising a bottom plate. The lower edge of the bottom plate is annularly provided with a plurality of heels. Acenter post is arranged at the upper center of the bottom plate, the lower end of the center post is passed through the bottom plate and is fixedly connected with a limiting block, the lower side of the bottom plate is provided with a limiting groove corresponding to the limiting block, the upper side of the bottom plate is provided with a plurality of arc clamp plates around the center post, thearc clamp plates are connected with the bottom plate through an adjusting mechanism, the center post is sleeved with a press plate, the inner wall of the press plate is provided with a plurality of first sliders in surrounding manner, and the center post is provided with a first slide groove corresponding to the first slider. The press plate and the bottom plate coact to clamp the upper and lowerends of a winding; the arc clamp plates around the center post peripherally clamp the winding; therefore, outward stretch and loosening of a conductor of the winding during compressing is avoided, andwinding quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of transformer production, in particular to a transformer winding drying constant voltage device. Background technique [0002] During the vacuum drying process of transformer windings, a constant pressing force must be applied to the windings to improve the mechanical strength of the windings and the stability of the box size, enhance the short-circuit resistance of the windings, and avoid the use of windings after vacuum drying. Coil press presses the winding process to improve production efficiency. [0003] The traditional winding device used in the vacuum drying process is a hydraulic device. Although the hydraulic device can exert a constant pressing force on the winding, the structure of the hydraulic device is complex, bulky, expensive, and requires maintenance. reduce the production cost of transformer windings. [0004] The transformer winding drying constant voltage device proposed by the author...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem in the prior art that the circumference of the winding is not compressed and fixed, which may easily lead to stretching of the wire, thereby causing the winding to loosen outwards, thus affecting the quality of the winding, and proposes a transformer winding Dry constant pressure device

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