Method for controlling deformation of tank wall at hanging shaft of oil tank

Abstract

The invention relates to a method for controlling the planeness of the tank wall at a hanging shaft of an oil tank and belongs to the technical field of transformers. The invention has the technical scheme that: firstly, a rigid fixing plate (2) with a tightening screw rod (1) is fixedly arranged on the back of the tank wall (5) at the hanging shaft; the tightening screw rod (1) is arranged perpendicular to the rigid fixing plate; and a groove is formed in one surface of the rigid fixing plate, which is close to the tank wall at the hanging shaft; secondly, a backing plate (3) is arranged at the groove, a clamping plate (2) is arranged at the top end of the tightening screw rod, the backing plate clings to the back of the tank wall at the hanging shaft and the clamping plate is positioned outside the backing plate; and thirdly, the tightening screw rod is rotated to push the clamping late to press the backing plate for compacting the backing plate, and the welding of the oil tank is finished. The method has the beneficial effects that the welding deformation of the hanging shaft can be effectively controlled, the planeness of the tank wall at the hanging shaft is ensured, the quality of products is improved and the work efficiency is improved.

Description

technical field [0001] The invention relates to a method for controlling the flatness of a tank wall at a suspension shaft of an oil tank, and belongs to the technical field of transformers. Background technique [0002] The internal dimensions of the transformer oil tank and the flatness of the tank wall are key quality characteristics. These characteristics directly affect the electrical performance of the transformer. However, the tank wall at the suspension shaft of the oil tank is prone to flatness and internal dimension out-of-tolerance, because the structure at the suspension shaft is complex , there are reinforcing irons and backing plates around, and these parts are welded on the box wall, so that the heat is concentrated during welding here, resulting in large deformation of the box wall here. Due to the high rigidity of the hanging shaft, the difficulty of plastic surgery is greatly increased. Contents of the invention [0003] The purpose of the present invent...

AI Technical Summary

Problems solved by technology

[0002] The internal dimensions of the transformer oil tank and the flatness of the tank wall are key quality characteristics. These characteristics directly affect the electrical performance of the transformer. However, the tank wall at the suspension shaft of the oil tank is prone to flatness and internal dimension out-of-tolerance, because the structure at the suspension shaft is complex , there are reinforcing irons and backing plates around, and these parts are welded on the box wall, so that the heat is concentrated during welding here, resulting in a large deformation of the box wall here

Due to the high rigidity of the hanging shaft, the difficulty of plastic surgery is greatly increased

Images