KR910006841Y1 - Fixing device for transformer - Google Patents

Abstract

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Description

Attachment structure of dustproof device and wheel device of induction electric

1 is a side view showing an embodiment device of the present invention.

2 is a side view as seen from the side of FIG.

3 is a plan view showing a base frame in the example apparatus.

4 is an enlarged view showing the main structure of the present embodiment.

5 is a perspective view showing the wheel device.

6 and 7 are a plan view of a main portion side view and a base frame showing another embodiment apparatus.

8 is a plan view of a base frame showing another embodiment;

9 is a perspective view of another embodiment wheel apparatus.

10 is a side view showing a conventional apparatus.

11 is an enlarged view of main parts of a conventional apparatus.

12 is a perspective view showing a wheel apparatus of a conventional apparatus.

The present invention relates to the structure of the attachment portion of the prevention device and the wheel device of the induction electricity to the atmospheric pressure air, such as resin mold transformer, dry insulation transformer, and the cooling medium.

Conventionally, induction electricity such as resin mold transformer and dry insulated transformer is excellent in disaster prevention performance because it does not use flammables such as insulating oil as its insulation and cooling medium, and it can be compactly formed without having to store it in a tank. Because of this, it is widely used as a substation facility for buildings such as underground substations in urban areas.

However, the self-regulation station is generally limited in place, so the use of transport equipment for carrying or moving transformers is extremely limited. Therefore, a wheel device is installed in the transformer to facilitate movement by manpower, and at the same time, a vibration isolator is provided to prevent the vibration of the iron core or winding generated from the transformer during transportation from spreading throughout the building by transferring the floor or wall of the building. To block vibration transmission.

10 is a side view including a cross-sectional view showing a part of the conventional structure, the iron core (2) with the winding (3) is connected to the upper frame (not shown) by the connecting plate (5) to sandwich the iron core For example, a lower frame 4 having a "c" shape is provided, and the lower frame 4 protrudes horizontally on both sides thereof, and has a support frame 4a having a "c" shape extending upward. 6 is a basic frame connecting the "c" shaped steels in a rectangular frame shape, and the "c" shaped supporting member 6A opened upward at a position opposite to the supporting member 4A on the lower frame 4 side. The support member 6A has a larger projecting dimension than the support member 4A.

7 is a dustproof device installed between the base frame 6 and the lower frame 4, and FIG. 11 shows the attachment structure in detail, and is fixed perpendicular to the base frame side supporting member 6A to support the lower frame side. It is made of a rubber elastic material having a connecting bolt 71 penetrating the member 4A and a projecting portion 72A through which the connecting bolt 71 penetrates and penetrates the supporting member 4A, and through the supporting member 4A. An anti-vibration rubber 72 for elastically supporting the transformer body 1 mainly composed of the iron core 2 and the windings 3 on the base frame 6, and the anti-vibration rubber 72 on the upper surface side of the support member 4A. A cushioning ring (73) and a crimping ring (74) surrounding the protrusion (72A) of the coupling and the connection bolts 71 and the crimping ring (74) to maintain the elasticity of each support member (4A, 6A) It is comprised as the lock nut 75 which connects, and prevents the vibration of the transformer main body 1 from being transmitted to the base frame 6 side.

8 is a wheel device attached to the distal end of the supporting member 6A of the base frame 6 via the fixing plate 6B, and the wheel having the axle 82 as shown in the detailed view of FIG. 81 and an axle number 83 having a wheel 81 formed in a "c" shape so as to support both ends of the secondary shaft 82 and the lower end portion at the axle number 83 perpendicular to the axle 82. Is attached to the fixing bolt 84 and the anti-rotation pin 85, the fixing plate (6B) through the fixing bolt 84 and the pin 85 through the fixing the lock nut 75 by fixing the main body of the transformer The movement of the transformer due to an earthquake or the like by connecting the landing bracket 9, which is easily movable in one direction and protrudes from the base frame 6 to the "b" shape at the same position, to the floor base side bracket. Or they have resisted evangelism.

In the conventional structure described above, since the vibration isolator 7 and the wheel device 8 are independently attached to each other in the extending direction of each of the supporting members 4A and 6A, the base frame is in this direction. The width W of (6) becomes large. This is often larger than the outer diameter of the winding 3, which requires a large installation place, and when storing this in a cubicle, there is a problem that the cubicle is enlarged.

In addition, due to the increase in the size of the base frame, the designation of the transformer movement and the large bending moment act on the supporting member. As a countermeasure, the "c" shaped steel with a large cross-sectional coefficient is used. Since there is a problem of increasing the difficulty of switching, it is difficult to actually move the transformer by manpower. Therefore, only the crane device is used for installation and movement.

An object of the present invention is to facilitate the movement of the transformer by miniaturizing or simplifying the base frame by making the structure of the attachment portion of the vibration isolator and the wheel device small.

In order to solve the above problems, the present invention is a dustproof device installed between the base frame for supporting the transformer body and the lower frame fixed to the induction electric body including the iron core and the winding recommended therein, and below the base frame In the plural sets of protruding wheel devices, the lower end is fixed to the number of axles of the wheel device so that each other is elastically coupled to each other by one connecting bolt penetrating the base frame, the vibration isolator, and the lower frame in a substantially vertical direction. It is done by.

According to the present invention, in the above means, a connecting bolt having a lower end fixed to the number of axles of the wheel device "c" shaped penetrates the base frame, the vibration isolator, and the lower frame in a substantially vertical direction to elastically couple the lower frame and the base frame. In this way, the vibration isolator and the wheel device are arranged so as to overlap each other with the base frame interposed therebetween, so that the support frame shortened to attach the conventional wheel device and the base frame thereby can be miniaturized.

In addition, since the bending moment acting on the base frame is drastically reduced by miniaturization of the base frame, the dustproof device, and the wheel arrangement, the structure of the base frame is simplified, for example, it is possible to form a flat plate. . In addition, since the wheel device is elastically coupled to the frame via the vibration isolator, it is easy to change the direction of the wheel, miniaturization of the base frame and facilitate the movement of the transformer out.

EXAMPLES Hereinafter, the present invention will be described according to Examples.

1 and 2 are a side view of a three-phase resin mold transformer showing an apparatus of an embodiment of the present invention, the cross section of a section cut out from different directions, and FIG. 3 is a plan view showing a basic frame in the present apparatus. 4 is an enlarged view showing the dustproof device and the wheel device attachment structure, and FIG. 5 is a perspective view of the wheel device according to the present embodiment. Since the same reference numerals are used for the same parts as the conventional apparatus in the drawings, detailed description thereof will be omitted. In FIG. 1 and FIG. 2, the base frame 16 which supports the lower frame 4 fixed to the three-phase resin mold transformer main body 1 as induction electricity via the anti-vibration device 7 is a wheel apparatus of a lower end part. The connection frame 14 fixed to the "c" shaped axle number of (18) is supported by the wheel device 18 by substantially penetrating in the vertical direction, and the base frame 16 and the transformer body 1 are Resilient coupling prevents vibration generated from the transformer body 1 by the vibration isolator 7 from being transmitted to the base frame 16. As a result, the vibration isolator 7 and the wheel device 18 are overlapped with the base frame 16 interposed therebetween, so that the dustproof device 7 and the wheel device 18 are disposed in the situation, and thus the support extended to the base frame side which is conventionally required for attaching the wheel device. The length of the member is shortened, and as shown in FIG. 2, the width W of the base frame 16 is shortened to equal to or less than the outer diameter of the winding 3 of the transformer body 1.

In addition, since the width W of the base frame 16 is shortened, and the vibration isolator and the wheel device are disposed so as to overlap, the bending moment acting on the base frame 16 is greatly reduced. As shown in the plan view of the figure, a flat plate in the form of a saga-type frame, which has a connection bolt hole 24, an attachment hole 29 of the axle bearing fixing plate 19, and a fixing plate 26 for embedding base metal fittings, is common. A simple structure can be achieved, and the structure can be simplified, downsized, and lightweight.

Further, as shown in FIG. 5, the wheel device 18 has the axle number 83 supporting the axle 82 as a "c" shape, and a flat portion 83A is formed on the upper side thereof. As shown in FIG. 4, the shaft center of the bolt 14 and the shaft center of the vehicle side 82 are orthogonal to each other in one plane so that the lower end of the connecting bolt 14 is fixed to the axle number 83. One connecting bolt 14 penetrates the frame 16, the vibration isolator 7, and the supporting member 4A on the lower frame side, and the flat portion 83A of the axle number 83 by the locknut 75. While carrying the transformer close to the lower surface of the flat base frame 16, one connecting bolt 14 is perpendicular to the axle 82, and always maintains the center of the load point on the axle. Due to the large cross-section secondary moment in Fig. 72, when the transformer is moved, the connecting bolt is tilted, which almost eliminates the risk of the transformer falling. Can. In addition, since the wheel device 18 is elastically coupled to the frame 16 and the support member 4A as the vibration isolator 7, the wheel 81 by picking up and rotating the axle number 83 in a gow such as a spanner or the like. ), The direction of travel can be switched, making it easier to downsize the foundation frame and to move and reorient the transformer in narrow spaces. In addition, the axle number fixing plate 19 is to prevent unnecessary turning of the wheel device. In addition, the fixing bracket 26 fixes the transformer to the base metal fittings, etc. embedded in the floor, via the holes 26A through which the foundation bolts are fitted.

6 is a side view of a main portion showing another embodiment of the present invention, and FIG. 7 is a plan view of the base frame, wherein the base frame 36 has a hole 24 and a fixing bracket 26 into which one connecting bolt is fitted. It is different from the above-described embodiment in that a pair of short side members 36A and a pair of short side members 36A are formed as a combination of a pair of connecting plates 36B for coupling the connecting portions 36C to each other. Both end portions of the connecting plate 36B come into contact with the side surfaces of the axle number 83 of the wheel device 18 and serve as an axle number predetermined plate for restricting the direction of the wheel device, thereby simplifying the structure of the base frame. It is possible to easily change the direction of by removing the connecting plate 36B.

FIG. 8 is a plan view showing a modification of the basic frame structure shown in FIG. 7, wherein the connecting bolt is fitted to the barrier side member 46B with the short wall side of the base frame 46 connected 46B. The provision of the hole 24 and the fixing tool 26 is different from the embodiment described above.

9 is a perspective view of a wheel device according to another embodiment of the present invention, wherein one end of the "c" shaped axle number 83 of the wheel device 58 is shaped like a "b" on the half wheel side. The point of forming the fixing bracket portion 86 is different from that of each of the above-described embodiments, that is, by coupling the base bolt fitted into the hole 86A of the fixing bracket portion 86 to the base bracket on the floor surface side. The advantage of controlling the installation of the transformer and the regulation of the change of the direction of the wheels can be obtained at the same time, and the removal of bolts is not necessary for the movement of the transformer.

As described above, the connection bolt having the lower end fixed to the number of axles of the wheel apparatus penetrates the foundation bolt, the vibration isolator, and the lower frame in a substantially vertical direction so that the vibration isolator and the wheel device attachment structure are elastically coupled to the connection part. Configured. As a result, the support frame of the foundation frame extending for attaching the wheel device in the conventional apparatus becomes almost unnecessary, and the width of the foundation frame is reduced, and at the same time the bending moment acting on the foundation frame is reduced, thereby simplifying the foundation frame into a plate shape. The structure is simplified. In addition, one common connecting bolt that supports the center of the point is suppressed by the axle number having a large section cross-sectional moment and a flat part close to the base frame, and the rotation of the axle number is reversed. Due to the small constraints, as the foundation frame is miniaturized, it can be carried out easily and without the risk of conduction of the transformer without the use of a mechanical device for the movement and direction change of the transformer in a narrow place. It is possible to easily go out, carry out, move, and install the simplification.

Claims (5)

A plurality of sets of dustproof devices are installed between the lower frame fixed to the induction electric body including the iron core and the windings recommended therein, and the base frame supporting the transformer body, and the wheel device protruding below the base frame. Induction, characterized in that the lower end is fixed to the number of axles of the wheel device is elastically coupled to each other by a common connecting bolt that passes through the base frame, the vibration isolator and the lower frame in a substantially vertical direction. Attachment structure of electric dustproof device and wheel device. 2. The attachment structure of the induction electric dustproof device and the wheel device according to claim 1, wherein the connection bolt is fixed to the number of axles while maintaining perpendicularity to the wheel. 2. The induction electric dustproof apparatus according to claim 1, wherein the base frame is formed in a plate shape having a rectangular frame shape, and has an axle number fixing plate that is detachably connected to a lower surface thereof to regulate the direction of the wheel device in one direction. Attachment structure of device and wheel device. 4. The attachment structure of an induction electric dustproof device and a wheel device according to claim 3, wherein each side of the base frame formed in the shape of a rectangular frame has a connecting portion that can be divided, and the connecting portion also serves as an axle fixing plate. The induction electric machine according to claim 1, wherein one end of the "c" shaped axle number extends in a "b" shaped shape on the half wheel side, and a through hole of the base bolt is formed in this extension portion. Attachment structure of dustproof device and wheel device.