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Bucket type oil tank positioning nail structure and positioning method of transformer

A technology of positioning nails and transformers, applied in the field of transformers, can solve problems such as numerous processes, achieve the effects of reducing costs, reducing workload, and improving labor efficiency

Inactive Publication Date: 2014-05-07
BAODING TIANWEI GROUP TEBIAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the structure of the barrel type fuel tank, the structure of the background technology is: seamless steel pipes are welded on the bottom of the tank, an insulating tube is placed inside the tube wall, and epoxy resin glue is placed in the insulating tube; Seam steel pipes are casted together, and after the next lifting inspection, they have to be cast again. There are many procedures, so technical improvement and upgrading must be carried out in order to effectively enhance market competitiveness

Method used

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  • Bucket type oil tank positioning nail structure and positioning method of transformer
  • Bucket type oil tank positioning nail structure and positioning method of transformer
  • Bucket type oil tank positioning nail structure and positioning method of transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, a transformer barrel oil tank positioning method, including the following process steps: ① Weld the positioning nail 2 on the web plate 1 of the lower clamp of the iron core, and weld a section of seamless steel pipe 5 on the bottom of the transformer oil tank, the seamless steel pipe The axis of the box is perpendicular to the bottom of the box, the bottom of the box is closed to the bottom of the seamless steel pipe, the upper part of the seamless steel pipe is open, the seat cover is arranged in the seamless steel pipe, the seamless steel pipe is provided with insulating cardboard 4, and the seat cover 3 is arranged on the insulating cardboard. Match with the positioning nail; ②The outer contour of the seat cover is a cylinder, which matches the inner diameter of the seamless steel pipe. The center line of the cylinder is on the same line as the axis of the seamless steel pipe, and there is a circular groove on the cylinder 6. The diameter of the circula...

Embodiment 2

[0020] Embodiment 2, the centerline of the circular groove of the seat cover and the centerline of the cylinder are not on the same straight line, the centerline of the circular groove and the centerline of the positioning nail are on the same straight line, and the axis of the seamless steel pipe and the centerline of the positioning nail Use when not on the same line, make sure the seat cover and the positioning pin match each other. The nail tip angle α of the positioning nail matches the bottom angle β of the circular groove of the seat cover. The centerline of the circular groove in the second embodiment deviates from the centerline of the cylinder by 5 mm.

Embodiment 3

[0021] Embodiment 3, the deviation between the center line of the circular groove and the center line of the cylinder is 10 mm, since the deviation between the center line of the general positioning nail and the axis of the seamless steel pipe is not greater than 15 mm, relying on the elasticity of the seat cover itself, the seat cover can be applied The deviation between the center line of the positioning nail and the axis of the seamless steel pipe; an insulating cardboard is placed between the seamless steel pipe and the polyurethane seat cover to ensure insulation.

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Abstract

The invention relates to a bucket type oil tank positioning nail structure and a positioning method of a transformer, and belongs to the technical field of transformers. The invention adopts the technical scheme as follows, the bucket type oil tank positioning nail structure comprises an iron core lower clamp web (1), a positioning nail (2), a base sleeve (3), an insulating paper board (4) and a seamless steel tube (5), wherein the positioning nail is welded on the iron core lower clamp web (1); a section of seamless steel tube is welded at the bottom of a transformer oil tank; the base sleeve is arranged inside the seamless steel tube; the base sleeve is matched with the positioning nail; the base sleeve is a polyurethane base sleeve which is elastic and convenient to adjust and matched with the positioning nail. The bucket type oil tank positioning nail structure has the positive effects that polyurethane base sleeves of three different models are equipped, the size of the positioning nail is measured, the errors are strictly controlled, proper base sleeves are selected, the workload is alleviated, the working efficiency is improved, and the cost of the transformer is lowered; the oil tank positioning nail structure is simplified, the number of components and the welding times are reduced, and the positioning nail is not required to be cast, so that the working intensity is alleviated, and hanging and checking are convenient to perform.

Description

technical field [0001] The invention relates to a positioning nail structure and a positioning method for a transformer barrel type oil tank, belonging to the technical field of transformers. Background technique [0002] Transformer manufacturing has a relatively long production cycle, in which the trial assembly, assembly, hoisting inspection of transformers and transformer maintenance after faults will all involve the problem of body positioning. For the barrel type oil tank structure, the structure of the background technology is: seamless steel pipes are welded on the bottom of the tank, an insulating tube is placed inside the tube wall, and epoxy resin glue is placed in the insulating tube; Seam steel pipes are cast together, and after the next lifting inspection, they have to be cast again. There are many procedures, so technical improvement and upgrading must be carried out to effectively enhance market competitiveness. Contents of the invention [0003] The purpo...

Claims

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Application Information

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IPC IPC(8): H01F41/00
Inventor 赵峰张立明刘新颜张国运孙国刚赵世显
Owner BAODING TIANWEI GROUP TEBIAN ELECTRIC
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