CN203415369U - Bell type lower oil tank and device body positioning system of oil-immersed transformer - Google Patents

Abstract

A bell type lower oil tank and body positioning system for an oil-immersed transformer, comprising a transformer body 1 and a lower oil tank 4, characterized in that it is fixed around the iron core lower clamp 5 of the transformer body 1 With conical pressed wooden block 6. Since the laminated wood block with a certain taper is fixed around the lower clamp of the iron core, when the body sinks to the bottom of the box, the laminated wood is pressed against the surrounding box edge through the set taper, and when the transformer is filled with oil, The expansion of the laminated wood back-presses the edge of the lower fuel tank, the positioning is simple and accurate, and the oil used for the transformer is saved.

Description

A bell-type lower oil tank and body positioning system for an oil-immersed transformer

technical field

The utility model relates to a bell jar type lower section oil tank and body positioning system of an oil-immersed transformer, which belongs to the technical field of transformer structures.

Background technique

The bell-type oil tank is commonly used in 110kV oil-immersed power transformers. The traditional bell-type oil tank is mainly divided into two parts: the upper section and the lower section. When the body of the transformer is positioned with the lower fuel tank, it is usually positioned with positioning fastening bolts on both sides of the lower fuel tank. The structure is shown in Figure 2. In order to save fuel, the lower fuel tank often adopts a groove-shaped lower fuel tank, and the distance between the groove-shaped opening and the lower clamp of the iron core is small, which is very inconvenient during positioning operation, and the operating wrench often hits the tank wall. If the operating space is increased, hundreds of kilograms of transformer oil will be wasted. Considering the overall mechanical strength of the oil tank, the design of the tank should not be too complicated, so the positioning system between the body and the lower fuel tank needs to be improved.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a bell type lower section oil tank and body positioning system of an oil-immersed transformer which is simple and accurate in positioning operation and saves transformer oil.

In order to achieve the above object, the utility model is realized by the following technical means: a bell jar type lower fuel tank and body positioning system of an oil-immersed transformer, including a transformer body 1 and a lower fuel tank 4, which is characterized in that : the iron core lower clip 5 of the transformer body 1 is fixed with a conical pressed wood spacer 6 around.

The beneficial effects of the utility model are: since the laminated wood block with a certain taper is fixed around the lower clamp of the iron core, when the body of the device sinks to the bottom of the box, the laminated wood will meet the surrounding box edge through the set taper. Compression, when the transformer is filled with oil, the expansion of the laminated wood will reversely compress the edge of the lower fuel tank, the positioning is simple and accurate, and the oil used for the transformer is saved.

Description of drawings

Fig. 1 is the positioning system of the traditional lower fuel tank, and Fig. 2 is the positioning system of the body of the utility model and the lower fuel tank.

The meanings of the attached symbols are as follows:

1. Transformer body, 2. Groove-shaped lower fuel tank edge, 3. Locating fastening bolts, 4. Lower fuel tank, 5. Iron core lower clamp, 6. Conical laminated wood spacers.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings of the description.

As shown in Figure 2, a bell type lower oil tank and body positioning system of an oil-immersed transformer includes a transformer body 1 and a lower oil tank 4, and is characterized in that: under the iron core of the transformer body 1 A laminated wooden spacer 6 with a certain taper is fixed around the clip 5 .

Because there is a tapered laminated wood block 6 fixed around the iron core lower clamp 5, when the transformer body 1 sinks to the bottom of the trough-shaped lower fuel tank box edge 2, the tapered laminated wood 6 passes through the set The taper and the surrounding trough-shaped lower section of the fuel tank are pressed against the edge 2. When the transformer is filled with oil, the expansion of the tapered laminated wooden spacer 6 is reversely pressed against the edge 2 of the lower section of the fuel tank, so that the transformer can be guaranteed The body 1 can be positioned with the lower fuel tank 2, which avoids the complicated operation process of the traditional structure and does not increase the consumption of transformer oil.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (1)

1. the bell-jar lower oil tank of an oil-filled transformer and device body navigation system, comprise transformer body (1), lower oil tank (4), it is characterized in that: the surrounding at the lower clamping piece unshakable in one's determination (5) of described transformer body (1) is fixing with conial layer pressed wood cushion block (6).

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