CN216647996U

CN216647996U - Structure for preventing deformation of top cover of transformer oil tank

Info

Publication number: CN216647996U
Application number: CN202122618279.8U
Authority: CN
Inventors: 刘广西; 孙日明; 杨剑
Original assignee: Chengdu Shuangxing Transformer Co ltd
Current assignee: Chengdu Shuangxing Transformer Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-31
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a structure for preventing a top cover of a transformer oil tank from deforming, which comprises a base plate, an upper beam and an oil tank top cover, wherein the upper beam is fixed on a transformer body, a bolt hole is formed in the upper beam, a countersunk hole is formed in the base plate, the countersunk hole of the base plate is fixedly connected with the bolt hole of the upper beam through a connecting bolt, and the oil tank top cover is positioned on the upper surface of the base plate and is in close contact with the base plate. This prevent transformer tank top cap warp structure, simple structure, easy dismounting when increasing oil tank top cap intensity, does not influence transformer oil's circulation.

Description

Structure for preventing deformation of top cover of transformer oil tank

Technical Field

The utility model belongs to the technical field of transformers, and particularly relates to a structure for preventing a top cover of a transformer oil tank from deforming.

Background

The large-scale transformers all require the oil tank to have certain mechanical strength, and under the condition that the vacuum degree is 133Pa and negative pressure, the oil tank is not allowed to be damaged or permanently deformed. For a large-scale transformer top cover, a plurality of holes need to be additionally arranged for facilitating the outgoing of high-low voltage sleeves, so that the strength requirement of the top cover under the action of vacuum pumping negative pressure is stricter. In order not to increase the height of the oil tank, generally, outside the reinforcing ribs are welded outside the tank cover to increase the strength, the insulating cushion blocks are additionally arranged inside the tank cover between the tank body and the tank cover to achieve the purpose of preventing the tank cover from deforming.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a structure for preventing a top cover of a transformer oil tank from deforming so as to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a prevent transformer tank top cap deformation structure, includes backing plate, upper beam and oil tank top cap, the upper beam is fixed in on the transformer ware body, the bolt hole has been seted up on the upper beam, the counter sink has been seted up on the backing plate, the counter sink of backing plate passes through connecting bolt fixed connection with the bolt hole of upper beam, the oil tank top cap is located the upper surface of backing plate and with backing plate in close contact with.

As a preferable technical scheme of the utility model, the length and the width of the base plate are matched with those of the upper beam.

In a preferred embodiment of the present invention, the pad is made of an insulating material.

As a preferred technical scheme of the utility model, the middle part of the upper surface of the backing plate is provided with an oil guide groove.

As a preferred technical solution of the present invention, the oil guide groove has a square structure, and the oil guide groove penetrates through the upper surface of the pad plate from one side to the other side.

The utility model has the technical effects and advantages that:

1. the insulating base plate is connected with the upper beam through the metal bolt, welding is not needed, the structure is simple, and the assembly and disassembly are convenient;

2. the middle part of the insulating base plate is provided with an oil guide groove, so that the dredging and the circulation of the transformer oil are not influenced.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of the main structure of the present invention;

fig. 3 is a schematic view of the structure of the backing plate of the present invention.

In the figure: 1. a base plate; 2. a countersunk hole; 3. an upper beam; 4. bolt holes; 5. a connecting bolt; 6. and a top cover of the oil tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a structure for preventing a transformer oil tank top cover from deforming, which comprises a backing plate, an upper beam and an oil tank top cover, wherein the upper beam is fixed on a transformer body, a bolt hole is formed in the upper beam, the backing plate is made of an insulating material and plays an insulating role between the transformer body and the oil tank top cover, an oil guide groove is further formed in the middle of the upper surface of the backing plate and is of a square structure, the oil guide groove penetrates through the upper surface of the backing plate from one side to the other side to facilitate the circulation of transformer oil, a countersunk hole is formed in the backing plate, the countersunk hole of the backing plate is fixedly connected with the bolt hole of the upper beam through a connecting bolt, the length and the width of the backing plate are matched with the length and the width of the upper beam, the oil tank top cover is positioned on the upper surface of the backing plate and is in tight contact with the backing plate, the backing plate and the connecting bolt have good stress effect, the backing plate is simple in structure, and no extra welding work is needed, the labor efficiency is improved.

In summary, the following steps: this prevent transformer tank top cap warp structure through the insulating backing plate that increases certain length and thickness between oil tank top cap and transformer ware upper beam on one's body, under the condition that does not increase the oil tank height, has increased the outside intensity of oil tank, has reached the fine mesh that prevents the case lid and warp.

In the description of the present invention, it is to be understood that, if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing and simplifying the description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides a prevent transformer tank top cap deformation structure, includes backing plate, entablature and oil tank top cap, its characterized in that: the upper beam is fixed on the transformer body, the upper beam is provided with a bolt hole, the base plate is provided with a counter bore, the counter bore of the base plate is fixedly connected with the bolt hole of the upper beam through a connecting bolt, and the oil tank top cover is positioned on the upper surface of the base plate and is in close contact with the base plate.

2. The structure for preventing the deformation of the top cover of the oil tank of the transformer as claimed in claim 1, wherein: the length and width of the base plate are matched with those of the upper beam.

3. The structure for preventing the deformation of the top cover of the oil tank of the transformer as claimed in claim 1, wherein: the backing plate is made of an insulating material.

4. The structure for preventing the deformation of the top cover of the oil tank of the transformer as claimed in claim 1, wherein: an oil guide groove is formed in the middle of the upper surface of the base plate.

5. The structure for preventing the deformation of the top cover of the oil tank of the transformer as claimed in claim 4, wherein: lead the oil groove and be square structure, and lead the oil groove and run through the upper surface of backing plate from one side to opposite side.