JP4194705B2 - Transformer anti-vibration rubber removal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, the tip of the anchor bolt that penetrates the transformer base is screwed into an anchor socket embedded in the foundation concrete and fastened, and is interposed between the transformer base and the foundation concrete. The present invention relates to a transformer anti-vibration rubber removing device that removes the anti-vibration rubber after the anchor bolt is removed.
[0002]
[Prior art]
Conventionally, as shown in FIG. 8, in order to prevent the vibration of the transformer body 1 from being transmitted to the foundation concrete 3 between the transformer base 2 and the foundation concrete 3 of the transformer body 1, A vibration rubber 4 is disposed.
[0003]
On the other hand, for the purpose of fixing the transformer main body 1, the anchor socket 5 is embedded in the basic concrete 3, and the transformer base 2 is fastened to the anchor socket 5 with anchor bolts 6. In the case of this structure, in order to reduce vibration transmission as much as possible, the anti-vibration rubber 7 is disposed between the transformer base 2 and the foundation concrete 3 even at the fastening place with the anchor bolt 6.
[0004]
However, at present, even if the anti-vibration rubber 7 is removed and the anchor bolt 6 is rigidly connected to the anchor socket 5, it is known that the increase in vibration transmission is in a range where there is no problem in practical use.
[0005]
In recent years, with the aim of improving the seismic performance of an operating transformer in which an anti-vibration rubber 7 is arranged on the anchor bolt 6, the anti-vibration rubber 7 on the anchor bolt 6 has been removed and a metal as shown in FIG. By replacing it with a nut 8 made of metal or replacing it with a metal liner 9 as shown in FIG. 9B, the bending stress acting on the anchor bolt 6 can be minimized and the transformer locking phenomenon can be prevented during an earthquake. The number of construction works is increasing. The liner 9 is welded to the transformer base 2 by the welded portion 10 after replacement.
[0006]
In this case, since the anti-vibration rubber 7 at the anchor bolt 6 is compressed, it cannot be easily pulled out even if the anchor bolt 6 is removed. Therefore, the appearance of a transformer anti-vibration rubber removing device that can easily remove the anti-vibration rubber 7 is desired.
[0007]
FIGS. 10A and 10B show two configurations of a conventional transformer anti-vibration rubber removing device.
[0008]
As shown in FIG. 10 (A), the conventional transformer vibration isolator removing device hooks a hook 11 made of wire on the anti-vibration rubber 7 to be removed after the anchor bolt 6 is removed, The anti-vibration rubber 7 was pulled and removed by pulling the hook 11 with the tensioning machine 12, but an existing hook 15 for fixing the tensioning machine 12 via the wire 13 and the shackle 14 is necessary. It is.
[0009]
When there is no existing hook 15 around, it is necessary to install the temporary hook 16 with the fixing anchor 17 as shown in FIG.
[0010]
[Problems to be solved by the invention]
However, the conventional transformer anti-vibration rubber removing device shown in FIGS. 10A and 10B has a problem that the existing hook 15 and the temporary hook 16 are necessary. Further, when the anti-vibration rubber 7 is pulled out, the hook 11 made of wire jumps and there is a problem with danger.
[0011]
In addition, a method of jacking up the entire transformer and removing the anti-vibration rubber 7 is also conceivable, but it is difficult to separate the devices fastened to the transformer, and the amount of jack-up It is difficult to adopt because of the difficulty of management.
[0012]
An object of the present invention is to obtain a transformer anti-vibration rubber removing device that can safely remove anti-vibration rubber.
[0013]
Another object of the present invention is to obtain a transformer anti-vibration rubber removing device that does not require a hook.
[0014]
[Means for Solving the Problems]
In the present invention, the tip of the anchor bolt that penetrates the transformer base is screwed into an anchor socket embedded in the foundation concrete and fastened, and is interposed between the transformer base and the foundation concrete. It improves the transformer anti-vibration rubber removing device for removing the anti-vibration rubber after the anchor bolt is removed.
[0015]
In the transformer anti-vibration rubber removing device according to the present invention, a hook that hooks the anti-vibration rubber to be removed in a U-shape, a support fitting to which both ends of the hook are connected, and the support fitting; A hydraulic jack interposed between the transformer base and the transformer base is provided.
[0016]
In such a transformer anti-vibration rubber removing device, a hooking tool is hooked on the anti-vibration rubber to be removed in a U-shape, and both ends of the hooking tool are connected to a support fitting, and the support fitting, the transformer base, A hydraulic jack is interposed between the two, and the hydraulic jack is extended in such a state to pull and remove the anti-vibration rubber to be removed by the hook. In such an apparatus, the vibration isolating rubber can be removed by the operation of the hydraulic jack, so that remote control is possible, and the anti-vibration rubber can be removed safely even if the hooking device jumps. Also, with this device, the vibration isolating rubber can be removed without the need for a hook, handling is easy, and construction costs can be reduced. Furthermore, since this apparatus is compact and has a small work space, the work can be performed without being affected by the environment around the installed transformer (mainly the work space).
[0017]
Further, in the transformer vibration isolator removing device according to the present invention, a hook that hooks the vibration isolator to be removed in a U-shape, a support fitting to which both ends of the hook are connected, and the support The hydraulic jack includes one end abutting against the metal fitting, and an adapter with a leg interposed between the other end of the hydraulic jack and the transformer base.
[0018]
If the adapter with legs is used in this way, the vibration isolating rubber can be easily removed when the vibration isolating rubber cannot be removed with the maximum stroke of the hydraulic jack. Also, since this adapter is with a leg, when the adapter is interposed between the other end of the hydraulic jack and the transformer base, if there is no leg, it will be an operation to push out and fix the hydraulic jack piston while holding the adapter, Where two-person work is required, it is possible to make one person work by eliminating the need for holding the adapter. Other effects are the same as in the example described above.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1A, 1B and 2 show a first example of an embodiment of a transformer vibration isolator removing device according to the present invention, and FIGS. FIG. 2 is a plan view of a support metal fitting used in the apparatus of this example, and FIG.
[0020]
In the transformer anti-vibration rubber removing device of this example, after the anchor bolt 6 is removed, the hook 11 made of a wire hooked on the anti-vibration rubber 7 to be removed, and both ends of the hook 11 are A support fitting 19 connected by a connector 18 and a hydraulic jack 20 interposed between the support fitting 19 and the transformer base 2 are provided. The support bracket 19 has a jack contact surface 19b standing at one end on a T-shaped bottom plate 19a, and a pair of jack side guides 19c standing on the bottom plate 19a in a direction perpendicular to the jack contact surface 19b. It has a structure. The hydraulic jack 20 is disposed between a pair of jack side guides 19c, one end of which is in contact with the jack contact surface 19b, and the other end is in contact with the transformer base 2. Reference numeral 21 denotes a liner interposed between the foundation concrete 3 and the bottom plate 19 a of the support metal 19.
[0021]
In such a transformer anti-vibration rubber removing device, the hook 11 is hooked on the anti-vibration rubber 7 to be removed in a U-shape, and both ends of the hook 11 are connected to the support bracket 19. The hydraulic jack 20 is interposed between the transformer base 2 and the hydraulic jack 20 is extended in such a state, whereby the anti-vibration rubber 7 to be removed by the hook 11 is pulled and removed.
[0022]
In such an apparatus, the vibration isolating rubber 7 can be removed by the operation of the hydraulic jack 20, so that it is possible to perform remote control, and the anti-vibration rubber 7 can be safely removed even if the hooking device 11 jumps. it can. Further, in this apparatus, the anti-vibration rubber 7 can be removed without the need for the hooks 15 and 16 described above, the handling is easy, and the construction cost can be reduced. Furthermore, since this apparatus is compact and has a small work space, the work can be performed without being affected by the environment around the installed transformer (mainly the work space).
[0023]
FIGS. 3A, 3B, and 4 show a second example of the embodiment of the transformer vibration isolator removing device according to the present invention, and FIGS. 3A and 3B show the transformer of this example. FIG. 4 is a perspective view of a legged adapter used in the apparatus of this example. FIG.
[0024]
In the transformer anti-vibration rubber removing device of this example, when the anti-vibration rubber 7 cannot be removed with the maximum stroke of the hydraulic jack 20, a leg is provided between the other end of the hydraulic jack 20 and the transformer base 2 as shown in the figure. The attached adapter 22 is interposed. This adapter 22 with a leg is composed of a cylindrical adapter body 22a and a pair of legs 22b projecting downward in the middle of the adapter body 22a in the longitudinal direction. Contact plates 22c and 22d are fixed to both ends of the cylindrical adapter body 22a in the longitudinal direction.
[0025]
When the legged adapter 22 is used in this manner, the vibration isolating rubber 7 can be easily removed when the vibration isolating rubber 7 cannot be removed with the maximum stroke of the hydraulic jack 20. In addition, since the adapter 22 is provided with the legs 22b, when the adapter 22 is interposed between the other end of the hydraulic jack 20 and the transformer base 2, if there is no leg 22b, the hydraulic jack is held while holding the adapter 22. The work of pushing and fixing the 20 pistons becomes a one-man work by eliminating the need for holding the adapter 22 where a two-man work is required. Other effects are the same as in the example described above.
[0026]
FIGS. 5A, 5B and 6 show a third example of the embodiment of the transformer vibration isolator removing apparatus according to the present invention, and FIGS. 5A and 5B show the transformer of this example. FIG. 6 is a plan view of a support metal fitting used in the apparatus of this example, and FIG.
[0027]
In the transformer anti-vibration rubber removing device of this example, a hook 11 ′ made of a U-shaped bracket is used as a hook, and a rectangular bottom plate 19 a ′ is used in the support bracket 19. Other configurations are the same as those of the first example shown in FIGS.
[0028]
FIGS. 7A and 7B are a plan view and a side view of a usage state showing a fourth example of the embodiment of the transformer vibration isolator removing device according to the present invention.
[0029]
In the transformer anti-vibration rubber removing device of this example, in the example shown in FIGS. 5A and 5B, when the anti-vibration rubber 7 cannot be removed with the maximum stroke of the hydraulic jack 20, the hydraulic jack 20 is illustrated as shown. An example in which a legged adapter 22 is interposed between the other end of the transformer and the transformer base 2 is shown.
[0030]
In the third and fourth examples, the same actions and effects as in the first and second examples can be obtained.
[0031]
【The invention's effect】
In the transformer anti-vibration rubber removing device according to the present invention, the hook is hooked on the anti-vibration rubber to be removed in a U-shape, and both ends of the hook are connected to the support metal, the support metal and the transformer base Since the anti-vibration rubber to be removed is pulled out by the hooking tool by extending the hydraulic jack in this state and the hydraulic jack is extended in this state, remote control is possible by using the hydraulic jack, and pulling The anti-vibration rubber can be removed safely even if the hanging tool bounces. Also, with this device, the vibration isolating rubber can be removed without the need for a hook, handling is easy, and construction costs can be reduced. Furthermore, since this device is compact and has a small work space, it can be constructed without being affected by the environment around the installed transformer.
[Brief description of the drawings]
FIGS. 1A and 1B are a plan view and a side view of a usage state showing a first example of an embodiment of a transformer vibration isolating rubber removing apparatus according to the present invention.
FIG. 2 is a plan view of a support fitting used in the apparatus of this example.
FIGS. 3A and 3B are a plan view and a side view of a usage state showing a second example of the embodiment of the transformer vibration isolator removing apparatus according to the present invention. FIGS.
FIG. 4 is a perspective view of an adapter with legs used in the apparatus of this example.
FIGS. 5A and 5B are a plan view and a side view of a usage state showing a third example of the embodiment of the transformer anti-vibration rubber removing device according to the present invention. FIGS.
FIG. 6 is a plan view of a support fitting used in the apparatus of this example.
FIGS. 7A and 7B are a plan view and a side view of a usage state showing a fourth example of the embodiment of the transformer anti-vibration rubber removing device according to the present invention. FIGS.
FIG. 8 is a longitudinal sectional view showing a conventional vibration isolating structure of a transformer.
FIGS. 9A and 9B are longitudinal sectional views showing a state in which the vibration-proof rubber is replaced with a nut or a liner at a fastening position by an anchor bolt in a conventional transformer.
FIGS. 10A and 10B are longitudinal sectional views showing a process of replacing a vibration-proof rubber with a liner at a fastening position by an anchor bolt in a conventional transformer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Transformer main body 2 Transformer base 3 Foundation concrete 4 Anti-vibration rubber 5 Anchor socket 6 Anchor bolt 7 Anti-vibration rubber 8 Nut 9 Liner 10 Welded part 11, 11 'Hook 12 Tensioning machine 13 Wire 14 Shackle 15 Existing hook 16 Temporary hook 17 Fixing anchor 18 Connector 19 Support metal fitting 19a, 19a 'Bottom plate 19b Jack contact surface 19c Jack side guide 20 Hydraulic jack 21 Liner 22 Adapter 22a with adapter Adapter body 22b Leg 22c, 22d Contact plate

Claims (2)

At the point where the tip of the anchor bolt that penetrates the transformer base is screwed and fastened to an anchor socket embedded in the foundation concrete, the protection bolt is interposed between the transformer base and the foundation concrete. In the transformer anti-vibration rubber removing device that removes the vibration rubber after removing the anchor bolt,
A hook that hooks the anti-vibration rubber to be removed in a U-shape, a support fitting to which both ends of the hook are connected, and a hydraulic jack interposed between the support fitting and the transformer base; A transformer anti-vibration rubber removing device comprising: At the point where the tip of the anchor bolt that penetrates the transformer base is screwed and fastened to an anchor socket embedded in the foundation concrete, the protection bolt is interposed between the transformer base and the foundation concrete. In the transformer anti-vibration rubber removing device that removes the vibration rubber after removing the anchor bolt,
A hook that hooks the vibration-proof rubber to be removed in a U-shape, a support fitting to which both ends of the hook are connected, a hydraulic jack whose one end is in contact with the support fitting, and the hydraulic jack And a transformer with a leg interposed between the other end of the transformer and the transformer base.

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