Transformer body assembly method

Abstract

The invention discloses a transformer body assembly method, which comprises the following steps of: (1) mounting iron cores comprising a main iron core and assistant iron cores on two sides; (2) sleeving coils: firstly sleeving part of coils on the peripheries of the iron cores, then assembling the rest coils together and integrally sleeving the rest coils on the peripheries of the iron cores so as to complete the sleeving process of the coils; and (3) tightly pressing a transformer body: placing cushion blocks on the two sides of an upper clamping piece and at the center of the upper clamping piece, wherein the heights of the cushion blocks are slightly larger than the height of the upper clamping piece, tightly pressing a transformer body in such manner, hanging fixed shaft heads between pulling plates of the iron cores and the upper clamping piece after the transformer body is tightly pressed, relieving pressure, moving away the cushion blocks, starting the empiecement and completing the assembly of the transformer body. The transformer body assembly method provided by the invention has the advantages that the sleeving time is reduced in the winding sleeving process, and since the cushion blocks are used for replacing presser foots in the tightly pressing process, overall height inconformity of the transformer body, which is caused by uneven force bearing of the clamping piece without the presser foots in the assembly process, cannot occur.

Description

Technical field: [0001] The invention belongs to the field of power transformer manufacturing, in particular to a body assembly method. Background technique: [0002] Power transformers are usually composed of three winding sets outside the iron core. The three major processes of the conventional structural body assembly process are: 1 winding set: structure 1) single winding set; or structure 2) single winding assembly, and then the overall set; 2. The body is pressed tightly; 3. The iron yoke inserts. This paper mainly expounds the winding set and body pressing process. [0003] 1. Winding set: [0004] 1) Single-winding assembly process: that is, the body without a supporting plate in the product structure adopts the single-winding assembly process, that is, after all the single windings are assembled, they are sequentially assembled outside the iron core from the inside to the outside. figure 1 . [0005] 2) After the single winding is assembled, then the overall pa...

AI Technical Summary

Problems solved by technology

Due to the small stress area during compression, the pressure on the pressure plate is uneven, resulting in inconsistent overall height of the body after compression, with large deviations

[0009] 2) Since there is no welding presser foot, the clamp cannot be seated on the pressure plate, and it will overwhelm the clamp when it is pressed, and there is a hidden danger of operation danger

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