JP3610334B2 - Disassembly method and dismantling apparatus for transformer core coil structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method of removing a PCB (insulating oil) from a used incombustible transformer and disassembling an iron core coil structure extracted from the case, and an apparatus used therefor.
[0002]
[Prior art]
The used non-combustible transformer is in a state where the core coil structure is immersed in the PCB in the case. Therefore, even after the PCB is removed from the case and the inside of the case is washed, PCB is attached. The core coil structure is mainly composed of an iron core and a coil. The iron core uses a laminated steel plate with yoke pieces and pole pieces arranged side by side. PCB soaked in between the steel plates is difficult to remove with the laminated structure, and it must be cleaned after separating it into the yoke pieces and pole pieces. Is desired. Also, since the coil paper is impregnated with PCB, the PCB cannot be removed by a normal cleaning operation. At present, the PCB is put into a vacuum heating furnace, and the PCB is sucked by a suction machine connected to the vacuum heating furnace. Only then can the PCB be removed. In this way, the PCB removal method is different, and the vacuum furnace is preferably as small as possible from the viewpoint of equipment costs, etc., so that the core coil structure can be separated into an iron core and a coil and handled separately. It is desirable.
[0003]
In order to separate the iron core coil structure into the iron core and the coil, it is necessary to remove the yoke of the iron core and pull out the coil from the tip of the pole of the iron core. For this reason, when the yoke of the core coil structure that has been cleaned is cut with gas or the like, the PCB is oxidized by heat to become dioxins. Therefore, a method of cutting the yoke by push-off has been conventionally employed.
[0004]
However, since the press cutting requires a large press load, there is a drawback that the life of the blade is shortened and the equipment cost and running cost are also increased. Also, as described above, the iron core uses the laminated steel plate in which the yoke pieces and the pole pieces are arranged, so when pushed out, the yoke pieces and the pole pieces become finer than the original size, and then the PCB is removed. Handling for removal is troublesome.
[0005]
[Problems to be solved by the invention]
The present invention has been developed in view of the above circumstances, and its purpose is to reduce the load when the yoke is removed, and to facilitate the removal of the PCB in a later process and the yoke piece and pole piece. Is to retain the original shape.
[0006]
[Means for Solving the Problems]
The core coil structure of the transformer used in the present invention has a vertically arranged pole piece and a horizontally oriented yoke piece, and the arrangement is changed and overlapped in the front and back, and the ends of the pole piece and the yoke piece are integrated by lamination. An iron core with poles arranged side by side between the upper and lower yokes is formed, the upper and lower yokes of the iron core are sandwiched by sandwiching plates from the front and the rear, each pole is surrounded by a coil, and there is a gap between adjacent coils Is.
[0007]
Further, the laminated structure of the iron core will be described in detail in the embodiment of the invention. The 90 ° joint type in which the pole piece and the yoke piece abut at 90 °, the 45 ° joint type in which the pole piece abuts at 45 °, and the yoke piece There are three types of different width types with different vertical widths.
[0008]
The inventions of claims 1 to 4 relate to a method of disassembling a core coil structure of a transformer, and inventions of claims 5 to 8 relate to a disassembly apparatus of the core coil structure of a transformer.
[0009]
In the first aspect of the present invention, after removing the front and rear clamping plates sandwiching the upper yoke, an upward force is applied to the entire thickness range of the upper yoke from the gap between adjacent coils while holding the lower yoke. Is added to separate the upper yoke. When holding the lower yoke, the sandwiching plate sandwiching the lower yoke may be left attached or removed.
[0010]
There are various ways of holding the lower yoke, which are roughly classified into a method of holding the lower yoke directly and a method of holding the lower yoke indirectly. For example, there are a method of directly holding the lower yoke using a gap between adjacent coils, a method of indirectly holding the lower yoke by holding other components such as a clamping plate, and the like. Here, the vertical direction is not limited to the direction in which the core coil structure is erected vertically with respect to the ground, but also includes the direction in which the core coil structure is laid horizontally.
[0011]
The reason for removing the front and rear clamping plates that sandwich the upper yoke is to release the clamping force so that the yoke can be easily pulled out. Also, if the yoke is separated, the remaining core coil structure is in a state where the coil is attached to the pole, but the coil can be separated by simply pulling out the coil along the extension direction of the pole from which the yoke has been detached. .
[0012]
Moreover, although the invention of claim 1 described above can be used for all types of iron cores, if used for 45 ° joint type and different width type iron cores, upward force is applied almost evenly to the left and right of each yoke piece, All yoke pieces can be separated at once as a united yoke. However, when used in a 90 ° -joint type iron core, the force is applied to the left or right side of each yoke piece, and one side of the yoke piece is disengaged, but the opposite side is sandwiched between poles. In this case, it is necessary to apply a pulling force separately when separating.
[0013]
The invention of claim 2 can also be used for all types of iron cores, but is suitable for use with 45 ° junction type and different width type iron cores, after removing the front and rear clamping plates with the upper yoke in between. The yoke piece is separated by applying an upward force to a part of the thickness width of the upper yoke from the gap between adjacent coils while holding the lower yoke.
[0014]
The invention of claim 3 is suitable for use in all types of iron cores, and is surrounded by a coil by applying a force to the left side of the left coil and to the right side of the right coil. It is characterized by separating the poles.
[0015]
When the integration of the pole piece and the yoke piece is strong, the method according to the first to third aspects may make it difficult to separate the pole and the yoke. In order to make it weak, it is desirable to scoop the end face of the corner portion of the iron core before separation as in the invention of claim 4.
[0016]
The invention of claim 5 is used for all types of iron cores, and has pulling means that reciprocate left and right on the left and right sides of the frame, and an openable and closable clamp that grips the coil is provided at the inner front part of each pulling means. It is characterized by.
[0017]
The invention of claim 6 is suitable for use in 45 ° junction type and different width type iron cores, and has a pedestal on which the iron core coil structure is placed on the lower side of the frame, and a restraining means provided in the pedestal. The lower yoke is restrained so as not to move upward, the upper side of the frame has a support beam above the core coil structure, the support beam has a pulling means that reciprocates up and down, and a gap between adjacent coils A hooking tool that hooks the entire upper yoke in the thickness range is provided at the tip of the pulling means. Note that before the upper yoke is pulled out by lifting the hook hooked on the upper yoke by the pulling means, the front and rear clamping plates that sandwich the upper yoke are removed in advance.
[0018]
The shape of the base is not particularly limited, and examples thereof include a beam shape and a plate shape. There are various structures for the restraining means.For example, a plurality of plates are integrated by pin joining to hold the lower yoke together with the beam-shaped pedestal, or a bolt is projected from the plate-shaped pedestal to the side of the clamping plate. For example, a stopper plate that is passed through a bolt is pushed downward by a nut, and the clamping plate is pressed against a pedestal at the end of the stopper plate.
[0019]
The invention of claim 7 uses a scraping tool that hooks a part of the thickness width of the upper yoke from the gap of the adjacent coil instead of a hooking tool that hooks from the gap of the adjacent coil to the entire thickness width of the upper yoke. And
[0020]
The invention according to claim 8 is characterized in that a turning gear for turning the end face of the corner portion of the iron core is provided so as to be rotatable to the left and right of the frame.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 and 2, the transformer 1 is formed by welding the outer periphery of the bottom of a bottomed cylindrical case 3 onto a framed bed 2, and forming an iron coil structure on PCB 4 of insulating oil stored in the case 3. 5, the lid 6 is fixed to the flange 7 of the case 3 by welding or bolts and nuts, the core coil component 5 is positioned and fixed to the lid 6 with the suspension bolts 8, and the cooler 9 for cooling the PCB 4 is placed outside the case 3. Have.
[0022]
An example of how to take out the core coil structure 5 from the transformer 1 is to first extract the PCB 4, fill the case 3 with cleaning liquid, extract the cleaning liquid, lower the PCB concentration of the core coil structure 5, and then Remove the lid 6 by either removing the nut or cutting and cutting the welded portion of the lid 6 and the flange 7. Then, the core coil structure 5 with the lid 6 is pulled up and taken out from the case 3, and the suspension bolt 8 is removed to obtain the core coil structure 5.
[0023]
As shown in FIGS. 3 to 6, the iron core coil structure 5 is clamped and fixed with bolts and nuts by sandwiching a yoke 11 facing the top and bottom of the iron core 10 made of laminated steel plates from the front and rear with a U-shaped sandwiching plate 12. A pole 13 parallel to the left and right of the iron core 10 is surrounded by a cylindrical coil 14, and a gap S is opened between adjacent coils. A brace ring 15 and a coil holder 16 are passed through the pole 13 above and below the coil 14, and the upper and lower clamping plates 12 are fastened with connecting bolts 17 to position the coil 14 between the clamping plates 12 and 12. In addition, the iron core 10 is placed on the mounting base 18, and the mounting base 18 and the lower clamping plate 12 are fixed via a connecting plate 19. Reference numeral 20 denotes a coil presser bolt.
[0024]
As shown in FIGS. 7 to 11, the iron core 10 is a laminated steel plate, and as a whole, poles 13 are juxtaposed between left and right yokes 11 and 11, and two poles 13 are arranged in accordance with the number of poles 13. There are phases (FIGS. 10 and 11) and three phases (FIGS. 7 to 9). In addition, the laminated structure has a “mouth” -shaped or “day-shaped” unit plate 23 formed by abutting a horizontal yoke piece 21 and a vertical pole piece 22 in a shape in which a square hole is opened on the inside. As shown in (a) and (b) of each figure, the unit plates 23 in which the arrangement of the yoke pieces 21 and the pole pieces 22 are changed are overlapped in the front and rear, and the end of the yoke piece 21 is overlapped in the front and rear. On the other hand, the pole piece 22 is joined in such a manner that the end of the pole piece 22 is sandwiched between the ends of the front and rear yoke pieces 21 and the center edge. In addition, there is also one in which the front and rear surfaces of the yoke piece 21 and the pole piece 22 are varnished and hardened.
[0025]
The above-described laminated structure of the iron core is mainly divided into three types. 7 (a) and 7 (b) and FIG. 10 (b) and FIG. 10 (b) are 90 ° junction types in which the yoke piece 21 and the pole piece 22 abut each other at 90 °, and the elongated rectangular yoke piece 21 and the pole piece. The unit plate 23 is formed using three or two of the 22 pieces. 8 (a) (b) and FIG. 11 (b) and (b) are 45 ° junction types in which the pole piece and the yoke piece abut at 45 °, and the two yoke pieces 21 and three It is composed of one or two pole pieces 22 and the side where each piece abuts is inclined at 45 °. Furthermore, what is shown in FIGS. 9A and 9B is a different width type, and two yoke pieces 21 and two pole pieces 22 are used, and the yoke pieces 21 having different vertical widths are used.
[0026]
As shown in FIGS. 12 to 15, the first embodiment of the iron coil component disassembly apparatus has a beam 25 as a pedestal at the lower part of the frame 24, and the iron coil configuration is formed on the pedestal beam 25 via a sleeper. Clamps 26 on which the body 5 is placed and the lower yoke 11 is sandwiched from the front and rear are arranged opposite to both sides of the pedestal beam 25. Further, a support beam 27 is provided in the upper part of the frame 24 in parallel with the pedestal beam 25, and the extraction means 28 of the upper yoke 11 is movably provided along the support beam 27 and the lower yoke 11 is moved upward. A plate-like restraining means 29 for restraining the iron core 10 so as to be immovable is detachably provided on the pedestal beam 25, and a turning means 30 is provided along the pedestal beam 25 so as to move the end face of the corner of the iron core 10. It is. In FIGS. 12 and 13, the turning means 30 is provided only on the left side and is not provided on the right side, but the right turning means 30 is omitted for convenience.
[0027]
A cylinder is used for the clamp 26, and a pressing plate is attached to the tip of the piston rod.
[0028]
The pulling means 28 has a slider 31 that moves along the support beam 27, a cylinder 32 is suspended from the slider 31, and a plate-shaped hook 34 is suspended from the tip of the piston rod 33 via a chain. is there.
[0029]
The hooking tool 34 is formed by pin-joining a plurality of plates in a partially overlapped state and assembling into a quadrangle, and the overall lateral width is less than or equal to the gap S between adjacent coils. The upper side of the lower plate is preferably matched to the cross-sectional shape of the upper yoke 11 and is horizontal when the cross-sectional shape of the upper yoke is a quadrangle, and is arcuate when the cross-sectional shape is circular. In this manner, the upper side of the lower plate of the hooking tool 34 hits the yoke 11 having the laminated structure over the entire thickness width of the lower side facing the gap S, and plastic deformation occurs in each yoke piece 21. Absent. If a wire or a chain is used instead of the hook 34, the yoke piece 21 may be plastically deformed in the stacking direction. In this case, the bonding force between the pole piece 22 and the yoke piece 21 increases, It becomes difficult to pull out from the pole 13.
[0030]
Similarly to the hooking tool 34, the restraining means 29 is also formed by pin-joining a plurality of plates in a partially overlapped state, and assembling the lower yoke 11 into a shape that holds the pedestal beam 25 of the H-shaped material. .
[0031]
The turning means 30 has a slider 35 that moves along the pedestal beam 25, a cylinder 36 is fixed vertically on the upper portion of the slider 35, and a plate is placed at the tip of a piston rod 38 that moves up and down along a guide 37. The turn gear 39 is rotatably supported with the vertical direction as the center axis, and the turn gear 39 is rotated by a motor. When the upper corner portion end surface of the iron core 10 is turned by the turning gear 39, the piston rod 38 is moved upward to adjust the height, and the turning gear 39 is rotated while the piston rod 38 itself is centered on the vertical direction. The rotation gear 39 is swung in the stacking direction of the iron core 10 around the piston rod 38.
[0032]
When disassembling the core coil structure 5, first, the connecting bolt 17 is removed or the cutting speed is reduced to a temperature at which the PCB is not oxidized, and the connecting bolt 17 is cut within the range between the upper and lower yokes 11 and 11, A gap S between adjacent coils 14 is opened forward and backward. Note that the position of the connecting bolt 17 is indicated by a cross in FIG. 6 and is before and after the gap S between the adjacent coils 14 and 14. Next, after removing the coil presser bolt 20, the upper and lower clamping plates 12, the mounting base 18, and the connecting plate 19, the core coil component 5 is placed on the pedestal beam 25. Then, the lower yoke 11 is clamped and held from the front and rear by the clamp 26, the restraining means 29 and the hook 34 are inserted through the gap S between the adjacent coils, respectively, and the lower yoke 11 is restrained by the restraining means 29, and the upper yoke. 11 is hooked with the hook 34. Subsequently, the piston rod 33 of the pulling means 28 is raised to remove the upper yoke 11.
[0033]
As shown in FIG. 16, the second embodiment of the iron coil component disassembling apparatus lays the iron coil component 5 on the plate-like pedestal 25 serving as the bottom of the frame 24, and stands on both sides of the frame 24. A spur gear 39 is provided along the columns 40, 40 so as to be movable up and down.
[0034]
As shown in FIGS. 17 to 20, the third embodiment of the iron coil constituent body disassembling apparatus includes a plate-like scraping tool 41 that hooks on a part of the thickness width of the lower side of the upper yoke 11 instead of the hooking tool 34. The holding means 29 is used for holding the lower yoke 11 of the core coil structure 5 as in the first embodiment.
[0035]
The attachment structure of the scraping tool 41 is such that the cylinders 42 of the pulling means 28 are erected on the front, rear, left and right sides of the frame 24, and the top plate 44 is horizontally supported at the tip of the piston rod 43 that goes in and out of the four cylinders 42. The core coil structure 5 is disposed directly below 44. Nuts 45 are attached to the top, bottom, left and right of the bottom of the top plate, and a shaft 46 is screwed between the left and right (depth direction in the figure) 45 and 45, and a support frame 47 is suspended at a predetermined position of the shaft 46. A horizontally-facing plate-shaped scraping tool 41 is slidably inserted back and forth, and a gear 48 that meshes with a part of the scraping tool is rotated to move the scraping tool 41 forward and backward. Therefore, if the shaft 46 is rotated by a motor, the scraping tool 41 moves to the left and right together with the shaft 46, and the scraping tool 41 can be aligned in front of or behind the gap S between adjacent coils. Further, in this state, as shown in FIG. 18, the scraping tool 41 is lowered together with the top plate 44, and as shown in FIG. As shown in FIG. 20, when the scraper 41 is raised together with the top plate 44, several yoke pieces 21 constituting the lower yoke 11 are removed.
[0036]
In the third embodiment, the yoke piece 21 is scraped from both the front and rear surfaces simultaneously and removed from the iron core coil structure 5, but may be a structure scraped only from one side. In addition, the iron coil component 5 is placed on the pedestal 25, and the scraping tool 41 is moved up and down. However, the iron coil component 5 is laid horizontally and reciprocated while the scraping tool 41 is kept horizontal. The structure to be made may be sufficient.
[0037]
The fourth embodiment of the iron coil component disassembling apparatus is to pull out the coil 14 from the iron coil component 5 with the upper yoke 11 removed, and as shown in FIGS. 49, the piston rod 50 is moved up and down above the core coil structure 5 with the upper yoke removed, and an inverted U-shaped support plate 51 is fixed to the tip of the piston rod 50. Further, a horizontally supported clamp 52 is connected by a pinion 53 so as to be able to advance and retract. The clamp has a structure in which a pressing plate is attached to the tip of the rack R. As shown in FIG. 21, the piston rod 50 is lowered from the state where the piston rod 50 is raised until the clamp 52 reaches the side of the coil 14 as shown in FIG. 22, and the clamp 52 is directed inward as shown in FIG. To move the coil 14 forward. Then, as shown in FIG. 24, the piston rod 50 is raised and the coil 14 is pulled out from the pole 13.
[0038]
The restraining means 29 in the fourth embodiment uses a structure different from that of the first embodiment by utilizing the structure of the iron core structure 5. That is, by utilizing the structure in which the core coil structure 5 is provided with the clamping plates 12 on the front and rear sides of the lower yoke 11, the bolts are projected upward from the plate-like pedestal 25, and the retaining plate T is attached to the bolts. The nut is screwed and the clamping plate 12 is pressed against the pedestal 25 at the end of the stop plate T. Reference symbol P denotes a height adjusting spacer.
[0039]
As shown in FIGS. 25 to 30, the fifth embodiment of the disassembling apparatus for the core coil structure 5 rotatably supports a holding case 55 that opens between the left and right columns 54, 54 of the frame 24, The core coil structure 5 suspended from above is lowered and moved from the upper opening of the holding case 55 to the inside. The holding case 55 has left and right pulling means 56 that reciprocate left and right, and a clamp 57 that can be opened and closed at the inner front portion of the pulling means 56. As shown in FIG. The left and right coils 14 and 14 of the iron core coil structure 5 are grasped and held. In addition, clamps 58 sandwiching the intermediate coil 14 from the front and rear are provided on the front and rear of the holding case 55.
[0040]
The pulling means 56 is formed by a cylinder 59 having a rotating shaft that protrudes to the left and right of the holding case 55, and the cylinder 59 is pivotally supported by the column 54, and the piston rod 60 can be reciprocated left and right inside the holding case 55. The clamp rod 57 is provided at the tip of the piston rod 60.
[0041]
As shown in FIG. 27, the left and right clamps 57 have an opening / closing cylinder 61 at the tip of the piston rod 54, and a pair of piston rods 62 are provided so as to be able to reciprocate back and forth from the front and rear of the opening / closing cylinder 61. A claw 63 for gripping the coil protrudes inwardly at the tip of 62, and the tip of the claw 63 is bent in a square shape to make it easier to grip the coil.
[0042]
The intermediate clamp 58 uses a cylinder and has a press plate attached to the tip of the piston rod.
[0043]
From the state in which all the coils are gripped by the left and right and intermediate clamps, the upper and lower clamping plates 12 and 12 and the mounting base 18 and the like of the iron core coil structure 5 are removed to form only the iron core 10 and the coil 14, as shown in FIG. As shown in FIG. 29, when the holding case is rotated 90 degrees so that the iron core coil structure 5 is laid down, the left clamp 57 is moved to the left and the right clamp 57 is moved to the right by the pulling means 56. The left and right poles 13 are detached together with the coil 14. Again, the holding case 55 is rotated 90 degrees to weaken the gripping force of the left and right clamps 57, and the left and right poles 13 are dropped together with the coils 14 into the cage placed under the frame 24. Since the remaining core coil components 5 are gripped by the two intermediate clamps 58, 58, the holding case 55 is rotated again by 90 degrees, and the loops 64 are wound around the left and right of the upper and lower yokes 11, respectively. When the upper and lower yokes are pulled simultaneously, the upper and lower yokes 11 are detached. Although the subsequent procedure is not shown in the drawing, the holding case 55 is further rotated 90 degrees, the gripping force of the intermediate clamps 58 and 58 is weakened, and the intermediate pole 13 is dropped together with the coil 14 into the cage.
[0044]
【The invention's effect】
The inventions of claims 1 and 3 skillfully utilize the structure in which the end portions of the pole piece and the yoke piece are integrated by lamination, and the overlapped surface slides vertically or horizontally. Since the yoke or coil is pulled in the direction, the upper yoke or the pole with the coil can be separated with a small load, and the yoke piece and the pole piece retain their original shape, and as a result, the separated yoke In addition, it becomes easy to further separate the pole with a coil into a yoke piece, a pole piece, and a coil. Further, the invention of claim 1 applies an upward force to the upper yoke by skillfully utilizing the gap between the coils.
[0045]
According to the second aspect of the present invention, since a force is applied to a part of the thickness width of the upper yoke, the yoke piece can be separated from the core coil structure with a small load.
[0046]
In the invention of claim 4, if the end surface of the corner portion of the iron core is turned, the integration by stacking the pole pieces and the yoke pieces becomes weak, so that the yoke and the pole can be easily separated.
[0047]
According to the fifth aspect of the present invention, since the clamp holding the coil is moved by the extracting means, the pole with the coil can be separated.
[0048]
In the sixth aspect of the invention, the lower yoke is restrained by the restraining means, and the hooking tool is hooked over the entire thickness width of the upper yoke and pulled out by the pulling means, so that the upper yoke can be separated.
[0049]
In the invention of claim 7, several upper yoke pieces can be separated by the scraping tool.
[0050]
According to the eighth aspect of the present invention, if the end surface of the corner portion of the iron core is pinched by the turning gear, the integration of the pole piece and the yoke piece is weakened, so that the yoke and the pole can be easily separated.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an internal structure of a transformer as viewed from the front side.
FIG. 2 is a longitudinal sectional view showing the internal structure of the transformer as seen from the side.
FIG. 3 is a plan view of an iron core coil structure taken out from a transformer.
4 is a front view of FIG. 3;
FIG. 5 is a side view of FIG. 3;
6 is a cross-sectional view taken along line AA in FIG.
7A and 7B are front views showing a laminated structure of three-phase iron cores.
FIGS. 8A and 8B are front views showing another example of a laminated structure of three-phase iron cores.
FIGS. 9A and 9B are front views showing another example of a laminated structure of iron cores for three phases.
FIGS. 10A and 10B are front views showing a laminated structure of iron cores for two phases.
FIGS. 11A and 11B are front views showing another example of a laminated structure of iron cores for two phases.
FIG. 12 is a front view showing a first embodiment of a dismantling apparatus for a core coil structure of a transformer.
FIG. 13 is a front view showing a state in which the upper yoke is removed in the first embodiment.
FIG. 14 is a cross-sectional view of the first embodiment showing a state in which the hook is hooked on the upper yoke and the lower yoke is restrained by the restraining means.
FIG. 15 is a cross-sectional view of the main part of the first embodiment showing a state where the lower yoke is clamped.
FIG. 16 is a front view showing a second embodiment of the dismantling apparatus for the core coil structure of the transformer.
FIG. 17 is a front view showing a third embodiment of a dismantling apparatus for a core coil structure of a transformer.
FIG. 18 is a front view showing a state where the top plate is lowered in the third embodiment.
FIG. 19 is a front view showing a state in which the tip portion of the scraping tool is hooked on a part of the upper yoke in the third embodiment.
FIG. 20 is a front view showing a state in which the yoke piece is scraped off at the tip of the scraping tool in the third embodiment.
FIG. 21 is a front view showing a fourth embodiment of a dismantling apparatus for a core coil structure of a transformer.
FIG. 22 is a front view showing a state in which the clamp is lowered to the side of the coil in the fourth embodiment.
FIG. 23 is a front view showing a state where a coil is gripped by a clamp in the fourth embodiment.
FIG. 24 is a front view showing a state in which the coil is pulled out in the fourth embodiment.
FIG. 25 is a front view showing a fifth embodiment of a dismantling apparatus for a core coil structure of a transformer.
FIG. 26 is a front view showing a state in which the core coil structure is put into the holding case of the fifth embodiment.
FIG. 27 is a plan view showing a state immediately before gripping a coil in the fifth embodiment.
FIG. 28 is a plan view showing a state immediately before the coil is pulled out in the fifth embodiment.
FIG. 29 is a plan view showing a state where left and right coils are pulled out together with poles in a fifth embodiment.
FIG. 30 is a front view showing a state immediately before the yoke is pulled out in the fifth embodiment.
[Explanation of symbols]
5 Iron core coil components
10 Iron core
11 York
12 Clamping plate
13 Paul
14 coils
S clearance
21 York piece
22 pole piece
24 frames
25 Pedestal (pedestal beam)
27 Support beam
28, 56 Pulling means
29 Restraint
34 Hook
39 Spear gear
41 Scaring tool
57 Clamp

Claims (8)

A vertical pole piece (22) and a horizontal yoke piece (21) are arranged side by side, and the arrangement is changed to overlap the front and rear, and the ends of the pole piece and the yoke piece are integrated by lamination to face each other vertically. An iron core (10) in which poles (13) are juxtaposed side by side is formed between (11, 11), and upper and lower yokes (11) of the iron core are respectively sandwiched by front and rear plates (12), and each pole (13) is sandwiched. In a method for disassembling a core coil structure of a transformer surrounded by a coil (14) and having a gap (S) between adjacent coils (14, 14),
After removing the front and rear clamping plates (12) sandwiching the upper yoke (11), the thickness of the upper yoke (11) from the gap (S) between adjacent coils is maintained while holding the lower yoke (11). A method of disassembling an iron core coil structure of a transformer, wherein the upper yoke (11) is separated by applying an upward force to the entire width. A vertical pole piece (22) and a horizontal yoke piece (21) are arranged side by side, and the arrangement is changed to overlap the front and rear, and the ends of the pole piece and the yoke piece are integrated by lamination to face each other vertically. An iron core (10) in which poles (13) are juxtaposed side by side is formed between (11, 11), and upper and lower yokes (11) of the iron core are respectively sandwiched by front and rear plates (12), and each pole (13) is sandwiched. In a method for disassembling a core coil structure of a transformer surrounded by a coil (14) and having a gap (S) between adjacent coils (14, 14),
After removing the front and rear clamping plates (12) sandwiching the upper yoke (11), the thickness of the upper yoke (11) from the gap (S) between adjacent coils is maintained while holding the lower yoke (11). A method for disassembling a core coil structure of a transformer, wherein the yoke piece (21) is separated by applying an upward force to a part of the width. A vertical pole piece (22) and a horizontal yoke piece (21) are arranged side by side, and the arrangement is changed to overlap the front and rear, and the ends of the pole piece and the yoke piece are integrated by lamination to face each other vertically. An iron core (10) in which poles (13) are juxtaposed side by side is formed between (11, 11), and upper and lower yokes (11) of the iron core are respectively sandwiched by front and rear plates (12), and each pole (13) is sandwiched. In a method for disassembling a core coil structure of a transformer surrounded by a coil (14) and having a gap (S) between adjacent coils (14, 14),
The pole (13) surrounded by the coil (14) is separated by applying a force to the left side of the left coil (14) and to the right side of the right coil (14). A method of dismantling the core coil structure of the transformer. The method of disassembling an iron core coil structure of a transformer according to claim 1, 2 or 3, wherein the end face of the corner portion of the iron core (10) is rolled before separation. Dismantling method. A vertical pole piece (22) and a horizontal yoke piece (21) are arranged side by side, and the arrangement is changed to overlap the front and rear, and the ends of the pole piece and the yoke piece are integrated by lamination to face each other vertically. An iron core (10) in which poles (13) are juxtaposed side by side is formed between (11, 11), and upper and lower yokes (11) of the iron core are respectively sandwiched by front and rear plates (12), and each pole (13) is sandwiched. In a dismantling apparatus for a core coil structure of a transformer surrounded by a coil (14) and having a gap (S) between adjacent coils (14, 14),
A pulling means (56) that reciprocates left and right is provided on the left and right sides of the frame (24), and an openable and closable clamp (57) that holds the coil (14) is provided at the inner front portion of each pulling means (56). The dismantling apparatus of the core coil structure of a transformer. A vertical pole piece (22) and a horizontal yoke piece (21) are arranged side by side, and the arrangement is changed to overlap the front and rear, and the ends of the pole piece and the yoke piece are integrated by lamination to face each other vertically. An iron core (10) in which poles (13) are juxtaposed side by side is formed between (11, 11), and upper and lower yokes (11) of the iron core are respectively sandwiched by front and rear plates (12), and each pole (13) is sandwiched. In a dismantling apparatus for a core coil structure of a transformer surrounded by a coil (14) and having a gap (S) between adjacent coils (14, 14),
The pedestal (25) on which the core coil structure (5) is placed is provided on the lower side of the frame (24), and the restraining means (29) provided on the pedestal (25) prevents the lower yoke (11) from moving upward. The support beam (27) is provided above the core coil structure (5) on the upper side of the frame (24), and the support beam (27) has a drawing means (28) that reciprocates up and down. An iron coil structure for a transformer having a hooking tool (34) for hooking a gap (S) between adjacent coils over the entire width of the upper yoke (11) at the tip of the pulling means (28). Demolition device. In the dismantling apparatus for the core coil structure of the transformer according to claim 6,
Instead of the hook (34) that hooks from the gap (S) between adjacent coils to the entire thickness width of the upper yoke (11), the gap (S) between adjacent coils is part of the thickness width of the upper yoke (11). An apparatus for disassembling a core coil structure of a transformer, wherein a scraping tool (41) to be hooked is used. 8. The iron core of a transformer according to claim 5, 6 or 7, wherein a turning gear (39) for turning the end face of the corner portion of the iron core (10) is provided to be rotatable to the left and right of the frame (24). A device for disassembling a coil structure.

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