CN214410969U - Foil coil winding tool for epoxy cast dry-type transformer - Google Patents
Foil coil winding tool for epoxy cast dry-type transformer Download PDFInfo
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- CN214410969U CN214410969U CN202120810977.5U CN202120810977U CN214410969U CN 214410969 U CN214410969 U CN 214410969U CN 202120810977 U CN202120810977 U CN 202120810977U CN 214410969 U CN214410969 U CN 214410969U
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Abstract
The utility model discloses a foil coil winding tool of an epoxy cast dry-type transformer, which comprises a coil winding mold, two movable connecting pieces, a winding machine square shaft for placing coils and a pressing plate assembly; the winding machine square shaft can sequentially penetrate into one end of one movable connecting piece, the coil winding die and one end of the other movable connecting piece from left to right; one ends of the two movable connecting pieces, which do not penetrate into the square shaft of the winding machine, are provided with screw rods; the pressing plate assembly comprises a pressing plate, a nut gasket and a silicon rubber plate for pressing the coil and the winding machine square shaft; a silicon rubber plate is adhered to the bottom of the pressing plate; round through holes are respectively formed at two ends of the pressing plate; the round through hole is provided with a nut gasket; the screw rods can respectively penetrate through the circular through holes at the two ends of the pressing plate and limit the height position of the pressing plate through the nut gasket. The utility model discloses can prevent that the turn from taking place not hard up phenomenon, simple structure, convenient to use requires not high to operating personnel.
Description
Technical Field
The utility model relates to a high-voltage electrical equipment makes technical field, more specifically relates to an epoxy pouring dry-type transformer foil formula coil coiling frock.
Background
At present, domestic transformer manufacturers make great progress in the aspect of transformer manufacturing. Epoxy cast dry transformers have become the primary power distribution equipment for low and medium voltage transformers. The coils of the epoxy cast dry type transformer are classified according to the shapes of coil conductors and mainly divided into a wire-wound coil and a foil coil, wherein the foil coil is formed by winding a foil tape along a columnar coil winding die for one circle, and the foil tape for one circle is one circle of the coil. The foil winding machine that present domestic transformer producer used all has such a process when coiling foil coil because of structural reason: namely, after the mould rotates clockwise and winds the last circle of the coil and draws a line at the cutting position of the foil, the tension of the foil needs to be relieved and part of the wire turns need to be unwound so as to weld the copper bar led out of the coil. Because the wound wire turns of the coil have clockwise shrinkage force which loosens the coil, although the surface of the coil is compressed by a tension roller of a winding machine before the foil is cut off, because the position of the tension roller is fixed, when the coil is wound anticlockwise after the foil is cut off, the direction of the friction force generated by the contact surface of the tension roller and the coil is consistent with the shrinkage force direction of the wire turns, and when the sum of the two forces is greater than the friction force between the coil layers, the coil which is wound tightly originally is loosened; the loosening phenomenon is more serious when the number of layers of the longitudinal radiating air passages of the coil is more, the foil strips are thicker, and the cross section of the coil is in an oblong shape; when the coil loosens to a certain degree, the foil coil directly cured at high temperature by adopting epoxy prepreg cloth as insulation can generate vibration abnormal sound when a product is subjected to a load test. In order to solve the problem, part of dry-type transformer manufacturers select foil coils to adopt a vacuum casting and curing process, but after the foil coils adopt the vacuum casting and curing process, the production period, the labor cost, the mold cost, the electric power cost and the like of the foil coils are greatly increased. Therefore, it is necessary to develop a foil coil winding tool to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to the background art exists, provide an epoxy casting dry-type transformer foil formula coil coiling frock, avoid the coil to take place not hard up phenomenon in the inseparable turn of coiling originally at the in-process of operation welding outer play head copper bar, simple structure, convenient to use, it is not high to require operating personnel.
In order to solve the problems, the foil type coil winding tool for the epoxy cast dry-type transformer is provided, and comprises a coil winding die, two movable connecting pieces, a winding machine square shaft for placing a coil and a pressing plate assembly; the winding machine square shaft can sequentially penetrate into one end of one movable connecting piece, the coil winding die and one end of the other movable connecting piece from left to right; one ends of the two movable connecting pieces, which do not penetrate into the square shaft of the winding machine, are provided with screw rods; the pressing plate assembly comprises a pressing plate, a nut gasket and a silicon rubber plate for pressing the coil and the winding machine square shaft; a silicon rubber plate is adhered to the bottom of the pressing plate; round through holes are respectively formed at two ends of the pressing plate; the round through hole is provided with a nut gasket; the screw rods can respectively penetrate through the circular through holes at the two ends of the pressing plate and limit the height position of the pressing plate through the nut gasket; and the pressing plate is provided with a bolt which can respectively penetrate through the nut gasket and the round through hole and can be in threaded connection with the screw rod.
Particularly, one movable connecting piece comprises a left fixing plate and a left bracket, and the other movable connecting piece comprises a right fixing plate and a right bracket; the right support and the left support are respectively movably connected with the right fixing plate and the left fixing plate through bolts.
Particularly, the right fixing plate and the left fixing plate are respectively cylindrical and have the same structure and material; the center of the right fixing plate and the center of the left fixing plate are provided with square holes for penetrating through a winding machine square shaft, and the right fixing plate and the left fixing plate are provided with circular holes which are circumferentially arranged and are used for being respectively connected with the right support and the left support through bolts.
Particularly, the right fixing plate and the left fixing plate are respectively cylindrical and have the same structure and material; a round hole is formed in the middle of the right fixing plate, the diameter of the round hole is larger than the diameter of an outer circle of a square shaft of the winding machine, a phi 13 round hole is formed in the outer portion of the round hole, and the thickness of the right fixing plate 2 is larger than or equal to 8 mm.
Particularly, the right support and the left support are respectively formed by clamping and welding one end of a screw rod between two connecting plates, and the structure and the material are completely the same; and round holes for connecting the right fixing plate and the left fixing plate through bolts are formed in the middle lower parts of the connecting plate of the right support and the connecting plate of the left support respectively.
Particularly, the pressing plate is formed by reversely buckling channel steel on a steel plate and welding, and the silicon rubber plate is adhered to the front plane of the channel steel; the specification of the channel steel is greater than or equal to that of 5# channel steel; the thickness of the steel plate is more than or equal to 8mm, the width of the steel plate is 10mm wider than that of the channel steel, and the length of the steel plate is 50-100 mm; the length of the silicon rubber plate is 50-100 mm shorter than that of the channel steel, and the width of the silicon rubber plate is the same as that of the channel steel.
Particularly, the pressing plate is formed by welding 2 steel plates on notches at two ends of the channel steel, and a round through hole is drilled in the center of each steel plate; the silicon rubber plate is adhered to the front plane of the channel steel; the specification of the channel steel is greater than or equal to that of 5# channel steel; the thickness of the steel plate is more than or equal to 8mm, the width of the steel plate is 10mm wider than that of the channel steel, and the length of the steel plate is 50-100 mm; the length of the silicon rubber plate is 50-100 mm shorter than that of the channel steel, and the width of the silicon rubber plate is the same as that of the channel steel.
The utility model has the advantages that:
1. the structure is simple, the use is convenient, and the requirement on operators is not high;
2. the number of layers of longitudinal air passages of the foil coil is increased, the temperature rise of the foil coil is reduced, the material cost of a product is reduced, and the competitiveness of the product is improved;
3. the tool and the wound coil synchronously rotate, so that the phenomenon that the coil is loosened due to the fact that the coil is wound tightly in the process of welding the copper bar with the outer head can be avoided, a series of problems caused by the fact that the coil is loosened due to the fact that the coil is turned can be avoided, and the effects of saving energy and reducing consumption are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a foil coil winding tool of an epoxy cast dry-type transformer according to a first embodiment of the present invention;
FIG. 2 is a front view of the right fixing plate of FIG. 1;
FIG. 3 is a perspective view of the right bracket of FIG. 1;
FIG. 4 is a perspective view of the platen of FIG. 1;
fig. 5 is a front view of a right fixing plate according to a second embodiment of the present invention;
fig. 6 is a perspective view of a pressing plate according to a third embodiment of the present invention.
In the figure: 1-coil winding mold; 2-right fixed plate; 3-winding a square shaft by a winding machine; 4-a bolt; 5-a right bracket; 6-a platen assembly; 7-nut washer; 8-left fixed plate; 9-a left support; 5.1-screw; 5.2-connecting plate; 6.1-channel steel; 6.2-steel plate; 6.3-silicon rubber plate.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
Example one
As shown in fig. 1, the foil coil winding tool for the epoxy cast dry-type transformer of the embodiment includes a coil winding die 1, two movable connectors, a winding machine square shaft 3 for placing a coil, and a pressing plate assembly 6. One movable connecting piece comprises a left fixing plate 8 and a left bracket 9, and the other movable connecting piece comprises a right fixing plate 2 and a right bracket 5. The right bracket 5 and the left bracket 9 are respectively movably connected with the right fixing plate 2 and the left fixing plate 8 through bolts 4. The winding machine square shaft 3 can penetrate into the left fixing plate 8, the coil winding mold 1 and the right fixing plate 2 from left to right in sequence.
As shown in fig. 2, the right fixing plate 2 and the left fixing plate 8 are respectively cylindrical and have the same structure and material. The centers of the right fixing plate 2 and the left fixing plate 8 are provided with square holes for penetrating the winding machine square shaft 3, and the centers of the right fixing plate 2 and the left fixing plate 8 are provided with round holes with phi 13 arranged on the circumference outside the square holes for being respectively connected with the right bracket 5 and the left bracket 9 through bolts 4. The thickness of the right fixing plate 2 is more than or equal to 8 mm.
As shown in fig. 3, the right bracket 5 and the left bracket 9 are respectively formed by clamping and welding one end of a screw 5.1 between two connecting plates 5.2, and the structure and the material are completely the same. The middle lower parts of the connecting plate 5.2 of the right bracket 5 and the connecting plate 5.2 of the left bracket 9 are respectively provided with a phi 13 round hole for connecting the right fixing plate 2 and the left fixing plate 8 through bolts 4. The round holes of the two connecting plates 5.2 are aligned, and the thickness of the connecting plate 5.2 is more than or equal to 4 mm.
As shown in fig. 4, the pressing plate assembly 6 includes a pressing plate, a nut washer 7, and a silicone rubber plate for pressing the coil and the winding machine square shaft 3. The pressing plate is formed by reversely buckling a steel channel 6.1 on a steel plate 6.2 and welding the steel channel 6.1 into a whole, and a silicon rubber plate is adhered to the other surface of the steel plate 6.2 welded with the steel channel 6.1. The steel plate 6.2 is slightly wider than the channel steel 6.1, and the silicon rubber plate is equally wider than the steel plate 6.2. The central positions of the two ends of the whole pressing plate are drilled with round through holes. The round through hole is provided with a nut gasket 7. The screw rods 5.1 can respectively penetrate through the circular through holes at the two ends of the pressing plate and limit the height position of the pressing plate through the nut gasket 7. The pressure plate is provided with a bolt 4, and the bolt 4 can respectively penetrate through the nut gasket 7 and the round through hole and can be in threaded connection with the screw rod 5.1. The steel plate 6.2 is equal to the channel steel 6.1 and is wider than the channel steel 6.1 by more than 10mm, and the silicon rubber plate 6.3 is equal to the steel plate 6.2 and is shorter than the steel plate 6.2; the specification of the channel steel 6.1 is more than or equal to that of the 5# channel steel, and the thickness of the steel plate 6.2 is more than or equal to 8 mm.
Example two
As shown in fig. 5, the foil coil winding tooling of the epoxy cast dry-type transformer of the present embodiment is the same as the first embodiment except for the left fixing plate 8 and the right fixing plate 2. The right fixing plate 2 and the left fixing plate 8 are respectively cylindrical and have the same structure and material. The middle of the right fixing plate 2 is provided with a round hole, the diameter of the round hole is larger than the diameter of the circumcircle of the winding machine square shaft 3, the round hole is provided with a phi 13 round hole, and the thickness of the right fixing plate 2 is larger than or equal to 8 mm.
EXAMPLE III
As shown in fig. 6, the foil coil winding tooling of the epoxy cast dry-type transformer of the present embodiment is the same as the first embodiment except for the pressing plate. The pressing plate is formed by welding 2 steel plates 6.2 on notches at two ends of a channel steel 6.1, and a round through hole is drilled in the center of each steel plate 6.2; the silicon rubber plate 6.3 is adhered to the front plane of the channel steel 6.1; the specification of the channel steel 6.1 is more than or equal to that of the No. 5 channel steel; the thickness of the steel plate 6.2 is more than or equal to 8mm, and the width of the steel plate is 10mm wider than that of the channel steel 6.1; the length is 50-100 mm; the length of the silicon rubber plate is 50-100 mm shorter than that of the channel steel 6.1, and the width of the silicon rubber plate is the same as that of the channel steel 6.1.
The specific use method of the foil coil winding tool of the epoxy cast dry-type transformer in the first, second and third embodiments comprises the following steps:
s1, sequentially sleeving a left fixing plate 8, a coil winding mold 1 and a right fixing plate 2 on a winding machine square shaft 3, and fixing the winding machine square shaft 3 through a foil winding machine locking device;
s2, when the foil type coil is wound to the last half turn according to the process, a left support 9, a right support 5, a left fixing plate 8 and a right fixing plate 2 are respectively movably connected through bolts 4, pressing plates are sleeved on screw rods 5.1 of the left support 9 and the right support 5 through round holes at two ends of the pressing plates, nut gaskets 7 are installed, nuts are uniformly screwed, so that silicon rubber plates of the pressing plates tightly press the coil to be in a proper position, the rest turn is continuously wound, the cutting position of the foil tape is compared with the cutting position of the foil tape, the foil tape is cut by a manual cutting machine, the wire is withdrawn to the pressing position of the pressing plates, the foil tape is welded with a coil outlet copper bar according to the process, and the process is operated until the outlet copper bar is firmly fixed;
s3, twisting down a pressure plate limiting nut gasket 7, detaching a pressure plate assembly 6, detaching a left support 9 and a right support 5, and then finishing the residual winding work of the coil according to the process;
and S4, removing the left fixing plate 8 and the right fixing plate 2 while removing the winding belt mold coil.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes and modifications can be made by the owner within the scope of the appended claims, and the protection scope of the present invention should not be exceeded by the claims.
Claims (7)
1. A foil type coil winding tool of an epoxy cast dry-type transformer is characterized by comprising a coil winding die, two movable connecting pieces, a winding machine square shaft for placing a coil and a pressing plate assembly; the winding machine square shaft can sequentially penetrate into one end of one movable connecting piece, the coil winding die and one end of the other movable connecting piece from left to right; one ends of the two movable connecting pieces, which do not penetrate into the square shaft of the winding machine, are provided with screw rods; the pressing plate assembly comprises a pressing plate, a nut gasket and a silicon rubber plate for pressing the coil and the winding machine square shaft; a silicon rubber plate is adhered to the bottom of the pressing plate; round through holes are respectively formed at two ends of the pressing plate; the round through hole is provided with a nut gasket; the screw rods can respectively penetrate through the circular through holes at the two ends of the pressing plate and limit the height position of the pressing plate through the nut gasket; and the pressing plate is provided with a bolt which can respectively penetrate through the nut gasket and the round through hole and can be in threaded connection with the screw rod.
2. The foil coil winding tool for the epoxy cast dry-type transformer according to claim 1, wherein the foil coil winding tool comprises: the movable connecting piece comprises a left fixing plate and a left bracket, and the other movable connecting piece comprises a right fixing plate and a right bracket; the right support and the left support are respectively movably connected with the right fixing plate and the left fixing plate through bolts.
3. The foil coil winding tool for the epoxy cast dry-type transformer according to claim 2, wherein the foil coil winding tool comprises: the right fixing plate and the left fixing plate are respectively cylindrical and have the same structure and material; the center of the right fixing plate and the center of the left fixing plate are provided with square holes for penetrating through a winding machine square shaft, and the right fixing plate and the left fixing plate are provided with circular holes which are circumferentially arranged and are used for being respectively connected with the right support and the left support through bolts.
4. The foil coil winding tool for the epoxy cast dry-type transformer according to claim 2, wherein the foil coil winding tool comprises: the right fixing plate and the left fixing plate are respectively cylindrical and have the same structure and material; a round hole is formed in the middle of the right fixing plate, the diameter of the round hole is larger than the diameter of an external circle of a square shaft of the winding machine, a phi 13 round hole is formed in the outer portion of the round hole, and the thickness of the right fixing plate (2) is larger than or equal to 8 mm.
5. The foil coil winding tool for the epoxy cast dry-type transformer according to claim 2, wherein the foil coil winding tool comprises: the right support and the left support are respectively formed by clamping and welding one end of a screw rod between two connecting plates, and the structure and the material are completely the same; and round holes for connecting the right fixing plate and the left fixing plate through bolts are formed in the middle lower parts of the connecting plate of the right support and the connecting plate of the left support respectively.
6. The foil coil winding tool for the epoxy cast dry-type transformer according to claim 1, wherein the foil coil winding tool comprises: the pressing plate is formed by reversely buckling channel steel on a steel plate and welding, and the silicon rubber plate is adhered to the front plane of the channel steel; the specification of the channel steel is greater than or equal to that of 5# channel steel; the thickness of the steel plate is more than or equal to 8mm, the width of the steel plate is 10mm wider than that of the channel steel, and the length of the steel plate is 50-100 mm; the length of the silicon rubber plate is 50-100 mm shorter than that of the channel steel, and the width of the silicon rubber plate is the same as that of the channel steel.
7. The foil coil winding tool for the epoxy cast dry-type transformer according to claim 1, wherein the foil coil winding tool comprises: the pressing plate is formed by welding 2 steel plates on notches at two ends of the channel steel, and a round through hole is drilled in the center of each steel plate; the silicon rubber plate is adhered to the front plane of the channel steel; the specification of the channel steel is greater than or equal to that of 5# channel steel; the thickness of the steel plate is more than or equal to 8mm, the width of the steel plate is 10mm wider than that of the channel steel, and the length of the steel plate is 50-100 mm; the length of the silicon rubber plate is 50-100 mm shorter than that of the channel steel, and the width of the silicon rubber plate is the same as that of the channel steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120810977.5U CN214410969U (en) | 2021-04-20 | 2021-04-20 | Foil coil winding tool for epoxy cast dry-type transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120810977.5U CN214410969U (en) | 2021-04-20 | 2021-04-20 | Foil coil winding tool for epoxy cast dry-type transformer |
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|---|---|
| CN214410969U true CN214410969U (en) | 2021-10-15 |
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| CN202120810977.5U Active CN214410969U (en) | 2021-04-20 | 2021-04-20 | Foil coil winding tool for epoxy cast dry-type transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035555A (en) * | 2021-04-20 | 2021-06-25 | 北海银河科技变压器有限公司 | Foil coil winding tool for epoxy cast dry-type transformer and use method |
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2021
- 2021-04-20 CN CN202120810977.5U patent/CN214410969U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035555A (en) * | 2021-04-20 | 2021-06-25 | 北海银河科技变压器有限公司 | Foil coil winding tool for epoxy cast dry-type transformer and use method |
| CN113035555B (en) * | 2021-04-20 | 2024-07-26 | 广西威科特电气有限公司 | Foil coil winding tool for epoxy casting dry type transformer and using method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221018 Address after: 545006 Blanking and painting workshop, No. 9, Yangxu Road, Yanghe Industrial New Area, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Weikete Electric Co.,Ltd. Address before: 536000 in Yinhe software science and Technology Park, Beihai City, Guangxi Zhuang Autonomous Region Patentee before: BEIHAI YINHE TECHNOLOGY TRANSFORMER Co.,Ltd. |
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| TR01 | Transfer of patent right |