A sub-frame core structure and transportation method for dismantling and transporting a transformer

Abstract

The invention discloses a sub-frame iron core structure for disassembling and transporting a transformer and a transportation method; the sub-frame iron core structure comprises an integral lower clamping piece, a U-shaped clamping piece and the like; when a product is disassembled and transported, the upper yoke and the upper clamping piece of an iron core as well as the overall lower clamping piece are disassembled from the iron core and are transported solely; the U-shaped inner clamping piece, the disassembled iron core units and a lower yoke are fixed by a bandage and transported as the integral sub-frame iron core; after the parts are transported to the site, the U-shaped inner clamping piece and the integral lower clamping piece are connected through a positioning device to form a combined lower clamping piece structure, so that the integral lower clamping piece and all sub-frame iron cores are installed fixedly, and finally the integral iron core is formed and the installation of the iron core and an oil tank is realized. According to the sub-frame iron core structure for disassembling and transporting the transformer and the transportation method, an oval iron core and dislocation phenomenon in the prior art are prevented when all the sub-frame iron cores are assembled on the oil tank.

Description

Technical field: [0001] The invention belongs to the field of transformer manufacturing, and relates to a combined lower clamping structure for a sub-frame iron core structure, which is suitable for reliable disassembly and installation of each sub-frame iron core of a large-scale disintegrated transportation transformer. Background technique: [0002] With the continuous development of the power grid, the market demand for large-capacity transformers continues to increase. The dismantled transportation and on-site assembly transformers have gradually been recognized by users due to their advantages in transportation and have been increasingly widely used. [0003] The core structure of the disassembled transport and on-site assembled transformer usually adopts a sub-frame structure to reduce the transport size and weight, such as figure 1 , figure 2 , image 3 shown. figure 2 Take a four-column sub-frame core as an example (the present invention is also applicable to t...

AI Technical Summary

Problems solved by technology

[0005] The overall lower clamp used in conventional transformers does not have the above-mentioned problems, but the application of the overall lower clamp to dismantled transportation and on-site assembly transformers also has the problem of difficulty in disassembly, transportation and on-site installation.

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