JP2557752Y2 - Anti-vibration device for oil-filled transformer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steadying device for an oil-filled transformer.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional example. The inner body 1 has an upper clamp 14 attached to a wound core 2 having a coil 15,
It is fastened and fixed integrally with the fastening band 6. For the lower steady rest, a steady rest 17 is welded to the upper surface of the tank bottom plate 4 in the outer position 4 direction corresponding to the size of the lower clamp 16 to prevent the lower clamp 16 from swinging. On the upper side, a stud 13 for lifting is attached to an upper clamp 14, and the stud 13 is inserted into a seat 11 on the lower surface of the cover 10 and fixed with a nut 12.

[0003]

[Problems to be Solved by the Invention] The steady rest seat to be welded to the upper surface of the tank bottom plate is difficult to store the main body unless the lower clamp is placed at an appropriate position. Is troublesome and troublesome. Also,
When the contents main body is stored in the tank, the contents main body is lowered while being suspended from the cover, so that it is easy to roll. In addition, when the contents main body enters the tank, it is impossible to see the steady rest from above the tank, and the work of placing the lower clamp in the steady rest requires a lot of time since it is in a grumble state. . The present invention facilitates the processing of the tank bottom and shortens the work of storing the contents.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides an oil-immersed transformer provided with a steady rest member for resting and supporting a core on a tank at the top and bottom of a core with a coil. The pipe of the steady rest member is disposed on both sides of the iron core with a slight gap provided between the side wall of the tank and the pipe is fixed to the iron core in advance by a fixing member. Further, the tube is closed to form a hollow tube.

[0005]

In this case, the lower part of the tank is prevented from swaying by the pipe fixed to the iron core beforehand outside the tank, so that there is no need to add any processing to the tank bottom. Further, if the hollow closed pipe is used, the amount of waste stagnant oil during operation of the tank bottom is reduced by the volume.

[0006]

1 and 2 show an example of an anti-sway device for an oil-immersed transformer according to the present invention, in which two square pipes 7 whose both ends are closed by lids 8 are placed in parallel, and the gap is about the width of a wound iron core. And the connecting plate 9 is welded to form a substantially U-shape. The cross-sectional dimension of the square tube 7 is
In the space below the long side coil, the width is set to be close to the longitudinal side surface of the wound core and the longitudinal side surface of the tank bottom square tube, and the height is not more than the lowermost end of the corrugated side plate 3 from the upper surface of the bottom plate. Height) Length shall be close to the inner dimension in the tank longitudinal direction. The connecting plate 9 has a width substantially the same as the width of the wound core, and a length substantially the same as a linear portion in which the lower surface on the long side of the wound core is in contact with the upper surface of the bottom plate 4, and stops the deflection in both directions between the lower clamp and the tank side plate. . The lower clamp having the above shape is attached to the lower part of the wound core 2 as shown in FIG. Although this embodiment is applied to a tank having a rectangular cross section, it can be applied to a tank having an elliptical cross section by adjusting the dimensions of the square tube. The upper portion of the contents main body has the same configuration as that of the conventional example shown in FIG.

[0007]

As described above, according to the present invention, there is no need to perform any welding or screw hole processing on the bottom of the tank, and only by inserting the iron core, the lower part can be supported by steadying. No powder remains in the tank, and the assembling work is easy. Also, if it is a hollow occlusion tube,
This has the effect of reducing the amount of bottom stop oil that does not contribute much to cooling during loading.

[Brief description of the drawings]

FIG. 1A is a front view of a lower part of a partial cross section of the content stabilizing device of the present invention. (B) is a side view thereof.

FIG. 2 is a perspective view of the lower clamp of the present invention.

FIG. 3 (a) is a front view of a partial cross section of a conventional anti-sway device. (B) is a side view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Contents main body 2 Winding core 3 Corrugated side plate 4 Bottom plate 5, 16 Lower clamp 6 Tightening band 7 Square tube 8 Lid 9 Connecting plate 10 Cover 11 Seat 12 Nut 13 Stud 14 Upper clamp 15 Coil 17 Sway seat

Claims (2)

(57) [Scope of request for utility model registration] 1. An oil-immersed transformer having upper and lower coiled iron cores with steadying members for swinging and supporting the iron core to a tank, wherein the lower steadying member is provided on both sides of the iron core with a side wall of the tank. An anti-skid device for an oil-filled transformer, comprising a pipe provided with a gap and a fixing member for fixing the pipe to an iron core in advance. 2. The device according to claim 1, wherein the pipe is a hollow closed pipe.