A method for manufacturing and processing a metal shell of a power transformer

A technology for power transformers and metal casings, which is applied in the manufacture of inductors/transformers/magnets, transformers/inductor shells, and components of transformers/inductors, etc., which can solve the problems of long grinding time, low installation efficiency and high labor intensity of workers. and other problems, to achieve the effect of good positioning operation and uniform grinding

CN111276325BActive Publication Date: 2021-10-08WUHU JINNIU ELECTRIC
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-10-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for manufacturing and processing a metal shell of a power transformer, which mainly includes the following steps: overall design, preparation work, forming treatment, grinding operation, welding treatment and other processes. The used shell grinding equipment includes a bottom plate and a docking device , positioning device, telescopic device and grinding device, the present invention can solve the following difficult problems existing in the grinding and welding of existing heat pipes and transformer boxes, a, traditional heat pipes and transformer boxes need to be manually held when grinding For the cooling pipe and the transformer box, use a grinding machine to grind the connection between the cooling pipe and the transformer box. The labor intensity of the workers is too high, the grinding time is long, and the installation efficiency is not high; b. The existing cooling pipe and the transformer box During welding, the welding machine is manually used to weld the connection between the heat dissipation pipe and the transformer box, and the connection between the heat dissipation pipe and the transformer box is unstable, which affects the heat dissipation function of the transformer.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of power transformer production, in particular to a method for manufacturing and processing a metal shell of a power transformer. Background technique

[0002] The power transformer is one of the main equipment of the power grid. Its safe and stable operation plays a very important role in the safety of the power system. Due to the principle of electromagnetic induction of the transformer, it will inevitably lead to partial heating of the transformer under certain conditions. The most common one is the transformer oil tank. The bolts connected to the base heat up. Long-term overheating of the bolts here will lead to cracking and damage of the sealing rubber pad. When the ambient temperature changes greatly, it may cause transformer oil leakage. Operation causes hidden dangers, so the heat dissipation pipe is welded on the transformer box. Before welding the heat dissipation pipe, the connection end of the he...

Examples

Embodiment Construction

[0034] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0035] Such as Figure 1 to Figure 9 As shown, a method for manufacturing and processing a metal shell of a power transformer is characterized in that it mainly includes the following steps:

[0036] Step 1, the overall design, the overall design of the power transformer is manually carried out, and the design drawings are obtained;

[0037] Step 2, preparatory work, preparing the metal plate that meets the design drawing size obtained in step 1;

[0038] Step 3, forming treatment, placing the metal sheet obtained in step 2 into a stamping die, and processing it into a metal shell conforming to the design drawing;

[0039] Step 4, grinding operation, place the metal shell and heat dissipation pipe in step 3 on the shell grinding equipment to perfo...