Stamping type cabinet seat of metal corrugated oil conservator for transformer

Abstract

The utility model belongs to the technical field of metal corrugated oil conservators, and particularly relates to a stamping type cabinet seat of a metal corrugated oil conservator for a transformer, which comprises cabinet legs and a hoisting structure, a stamping cabinet seat surface of the stamping type cabinet seat is a medium-thickness plate, a plurality of grooves formed by pressing of an oil press are stamped on the stamping cabinet seat surface, and the cabinet legs and the hoisting structure are arranged on the stamping cabinet seat surface. The structural strength and rigidity of the stamping type cabinet seat are improved through the grooves, and a process via hole and a plurality of mounting holes are formed in the surface of the stamping type cabinet seat; the cabinet legs are fixed on the bottom surface of the stamping cabinet seat surface, and the hoisting structures are mounted on the cabinet legs. According to the utility model, the structure of the cabinet seat is simplified, the manufacturing cost is reduced, and the production efficiency is improved. Compared with a traditional sectional material tailor-welded cabinet seat, the stamping type cabinet seat has the advantages that the structure is simplified, the self weight is reduced, the cost is reduced, the production efficiency is improved, and the consistency and interchangeability of products are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of corrugated metal oil storage tanks, specifically a stamped cabinet base for a corrugated metal oil storage tank for transformers. Background Technology

[0002] The traditional transformer oil conservator base is a major structural component of the transformer oil conservator, serving to support the oil conservator core, outer casing, and other auxiliary structures, and connecting it to the transformer. For example... Figures 1-3 As shown, a traditional profile-welded structure cabinet base consists of a cabinet base surface 1, cabinet legs 2, and a lifting structure 3. The cabinet base surface 1 has a network structure, and a plate-type base plate 4 is added to the cabinet base surface 1 to ensure the enclosed structure protects the internal structure. Since the dimensions of the cabinet legs 2 are usually customized to fit the transformer, the entire cabinet base is typically custom-made. Because the cabinet base needs to withstand compressive and bending stresses, a profile structure is used to improve structural stability. The parts are welded together to form a whole, and various mounting holes are machined using a drilling machine after welding. With the advancement of the transformer industry, the requirements for transformer oil conservator products are increasing, and the problems of the traditional profile-welded structure cabinet base for transformer oil conservators are becoming increasingly apparent.

[0003] First, because the cabinet base uses a profile welded structure, which is not a closed structure, it cannot meet the requirements for dust and debris prevention. Even if a base plate 4 is added to the cabinet base surface 1 to provide a seal, the gaps in the base plate 4 after installation will still be uneven due to the large forming error of the profile welded cabinet base, and it still cannot meet the requirements for dust and debris prevention.

[0004] Secondly, because the cabinet base adopts a profile welding structure, the number of parts is relatively large, typically no less than thirty parts per cabinet base. For manufacturers, the workload of manufacturing, turnover, and storage of parts is very large; moreover, due to the profile welding structure, the welding workload is relatively large, with the cumulative weld length often exceeding ten meters. Not only is the workload large, but the deformation is also severe, usually requiring a special straightening process to meet the usage requirements. As a result, traditional profile splicing structure cabinet bases have always suffered from the disadvantages of low production efficiency and high production costs.

[0005] Third, welding spatter increases the difficulty of pre-painting treatment, and the profile structure usually has many painting dead spots, making the painting operation difficult and the paint quality hard to guarantee. The various mounting holes on the cabinet base are usually machined by drilling after welding, and the position of the holes is often difficult to guarantee accurately. The connection holes with the outer cover even need to be made to match. Therefore, traditional oil tank bases also have the disadvantages of poor paint quality and poor product consistency.

[0006] Fourth, because traditional oil storage tank bases are custom-made and cannot be stocked, the production cycle of traditional oil storage tank bases is long, which to some extent restricts the development of the oil storage tank industry.

[0007] Furthermore, on the user side, due to the poor consistency of the oil tank base, when the oil tank base or outer cover malfunctions and needs to be replaced, the base and outer cover must be replaced simultaneously to ensure compatibility, which increases the maintenance cost of the oil tank.

[0008] Therefore, with the changes in transformer products, the traditional welded structure of transformer oil conservator bases has gradually shown negative impacts on the oil conservator industry due to its structural problems. A more reasonable oil conservator base structure has become a demand of oil conservator manufacturers.

[0009] With advancements in basic industries, large-scale processing equipment has become increasingly common. For example, stamping processes are widely used for components with dimensions similar to those of oil tank bases, such as automobile chassis. Therefore, manufacturing oil tank bases using stamping processes is now feasible. Utility Model Content

[0010] In view of the above-mentioned problems of the traditional transformer oil conservator profile welded structure cabinet base, the purpose of this utility model is to provide a stamped cabinet base for a transformer metal corrugated oil conservator.

[0011] The objective of this utility model is achieved through the following technical solution:

[0012] This utility model includes cabinet legs and a hoisting structure. The stamped cabinet base has a medium-thick plate as its stamped base surface. Multiple grooves formed by a hydraulic press are stamped on the stamped cabinet base surface. Each groove improves the structural strength and rigidity of the stamped cabinet base. Process through holes and multiple mounting holes are provided on the stamped cabinet base surface. The cabinet legs are fixed to the bottom surface of the stamped cabinet base surface, and the hoisting structure is installed on the cabinet legs.

[0013] The stamping cabinet base surface is provided with positioning holes for positioning during laser cutting.

[0014] There are two positioning holes, and grooves are provided in front of, behind, left and right of the two positioning holes.

[0015] The positioning hole is a through hole.

[0016] The length direction of each groove is the same as the length direction of the stamping cabinet base surface.

[0017] The process vias and mounting holes are all through holes.

[0018] The advantages and positive effects of this utility model are as follows:

[0019] This invention makes the corrugated metal oil tank base easier to manufacture and customize. It reduces manufacturing costs, shortens the production cycle, and promotes industry development. Specifically:

[0020] 1. Simplified Structure: This utility model uses a stamped cabinet base surface instead of the traditional multi-profile welded structure cabinet base surface, and eliminates the original bottom plate that served a sealing and protective function. This greatly simplifies the structure of the metal corrugated oil storage tank base.

[0021] 2. Manufacturing Cost and Cycle: This utility model uses a stamping process to fabricate the cabinet base surface of a medium-thick plate, combined with laser processing for positioning holes. It employs cold forming technology instead of hot forming technology, and laser cutting technology instead of milling and drilling technology. The use of automated equipment and specialized machines significantly shortens the production cycle, resulting in reduced processing costs. Simultaneously, the simplified structure reduces raw material usage, further lowering material costs. In actual production, the cabinet base surface is treated as a general-purpose component, while the cabinet legs are defined as custom-made components. The general-purpose cabinet base surface can be mass-produced and stocked, eliminating the need to consider the production cycle in specific order production, thus greatly improving production efficiency. The production of custom-made components is less labor-intensive and has a significantly shorter production cycle compared to custom-made traditional profile-welded cabinet bases. Therefore, the manufacturing cost of this utility model's stamped cabinet base is significantly lower than that of traditional profile-welded cabinet bases, and the production cycle is also significantly shortened. This, to a certain extent, promotes the development of the industry.

[0022] 3. Enhanced Protection and Durability: This invention utilizes a single-piece stamped thick plate structure instead of the traditional profile welding structure, eliminating the unavoidable painting dead zones inherent in profile welding structures. The main painting surfaces are large, flat planes, making painting easier, ensuring higher quality, and achieving better corrosion resistance.

[0023] 4. Extended lifespan: The stamped cabinet base of this utility model uses laser processing technology to create the connection holes with the outer cover and other structures, resulting in high product consistency and interchangeability. When the outer cover or cabinet base is damaged or needs to be replaced, only the damaged part can be replaced instead of the entire set, thereby extending the service life of the entire oil storage tank. Attached Figure Description

[0024] Figure 1 The main structural view of the welded structure of the oil conservator base for traditional transformers;

[0025] Figure 2 A top view of the structure of a traditional transformer oil conservator cabinet base made of welded profiles;

[0026] Figure 3 A schematic diagram of the base plate installed on the welded structure of the oil conservator profile in a traditional transformer;

[0027] Figure 4 This is a three-dimensional structural diagram of the stamped cabinet base of this utility model;

[0028] Figure 5 This is a top view of the structure of the stamped cabinet base of this utility model;

[0029] Wherein: 1 is the cabinet base, 2 is the cabinet leg, 3 is the hoisting structure, 4 is the base plate, 5 is the stamped cabinet base, 6 is the groove, 7 is the positioning hole, and 8 is the process through hole. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] like Figure 4 , Figure 5 As shown, the stamped cabinet base of this utility model includes a stamped cabinet base surface 5, cabinet legs 2, and a lifting structure 3. The stamped cabinet base surface 5 is a medium-thick plate, and multiple grooves 6 formed by a hydraulic press are stamped on the stamped cabinet base surface 5. Each groove 6 acts as a reinforcing rib to improve the structural strength and rigidity of the stamped cabinet base. The stamped cabinet base surface 5 has process through holes 8 and multiple mounting holes, all of which are through holes. Various mounting holes are used to install the oil tank core, pipelines, electronic components, and other structures. Two cabinet legs 2 are welded to the bottom surface of the stamped cabinet base surface 5, and a lifting structure 3 is installed on each cabinet leg 2. The cabinet legs 2 and the lifting structure 3 are existing technologies and will not be described in detail here.

[0032] In this embodiment, the stamping cabinet base surface 5 is provided with positioning holes 7 for positioning during laser cutting. The positioning holes 7 are two circular through holes. There are grooves 6 in front of, behind, left and right of the two positioning holes 7. That is, there are four grooves 6 in this embodiment. The four grooves 6 are parallel and the length direction of the four grooves 6 is the same as the length direction of the stamping cabinet base surface 5.

[0033] This utility model combines the cabinet seat surface 1 of the traditional transformer oil conservator profile welded structure cabinet seat with the base plate 4, which plays a role in sealing and protection, into one, and uses a medium-thick plate as the stamped cabinet seat surface 5, which is stamped.

[0034] In the manufacturing of this utility model, a cold working process, primarily using stamping, is employed instead of a hot working and welding process to manufacture the stamped cabinet base 5. The stamped cabinet base 5 is manufactured using a process of two laser cutting operations followed by a single stamping. Specifically, during the first laser cutting, only the outer shape of the blank and two circular positioning holes 7 in the center are cut. Then, the circular positioning holes 7 are used as positioning references for stamping. After stamping, during the second laser cutting, the circular positioning holes 7 are again used as positioning references to process various mounting holes, ensuring that the mounting holes do not deform due to stamping deformation and that their positions are not affected by stamping deformation. After the stamped cabinet base 5 is manufactured, suitable cabinet legs 2 and lifting structures 3 are selected and welded together according to customized requirements.

[0035] This invention optimizes the design of the traditional welded profile structure for transformer oil conservator bases, using groove 6 to improve the performance of the single-plate structure. This ensures that the performance of the stamped base of this invention surpasses that of traditional welded profile structure bases. During manufacturing, a repetitive positioning method based on the same reference is employed, utilizing CNC machining equipment and large-scale stamping equipment to improve structural precision, making the corrugated metal oil conservator base easier to produce and customize. This reduces manufacturing costs, shortens the production cycle, and promotes industry development.

Claims

1. A stamped metal corrugated oil conservator base for transformers, comprising cabinet feet (2) and a hoisting structure (3), characterized in that: The stamped cabinet base surface (5) of the stamped cabinet base is a medium-thick plate. Multiple grooves (6) formed by hydraulic press are stamped on the stamped cabinet base surface (5). Each groove (6) improves the structural strength and rigidity of the stamped cabinet base. Process through holes (8) and multiple mounting holes are opened on the stamped cabinet base surface (5). The cabinet feet (2) are fixed on the bottom surface of the stamped cabinet base surface (5). The hoisting structure (3) is installed on the cabinet feet (2).

2. The stamped cabinet base for a metal corrugated oil conservator for transformers according to claim 1, characterized in that: The stamping cabinet base surface (5) is provided with positioning holes (7) for positioning during laser cutting.

3. The stamped cabinet base for a metal corrugated oil conservator for transformers according to claim 2, characterized in that: There are two positioning holes (7), and grooves (6) are provided in front, behind, left and right of the two positioning holes (7).

4. The stamped cabinet base for a metal corrugated oil conservator for a transformer according to claim 2, characterized in that: The positioning hole is a through hole.

5. The stamped cabinet base for a metal corrugated oil conservator for a transformer according to claim 1, characterized in that: The length direction of each groove (6) is the same as the length direction of the stamping cabinet seat surface (5).

6. The stamped base of the metal corrugated oil conservator for transformers according to claim 1, characterized in that: The process vias (8) and mounting holes are all through holes.

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