A winding device for large three-dimensional volume iron core transformer

Abstract

The application relates to the winding technology field of a large three-dimensional winding core transformer, and particularly relates to a winding device for a large three-dimensional winding core transformer, which comprises a feeding structure and a winding structure arranged in correspondence with the feeding structure, the three-dimensional winding core comprises an iron core and a winding sleeve arranged on the iron core, the feeding structure comprises a fixed plate, a metal foil bearing structure and an insulating film bearing structure which are arranged on the fixed plate in correspondence, the winding structure comprises a bottom plate, a driving structure arranged on the bottom plate, a fixing structure arranged on the bottom plate and a clamping structure arranged on the bottom plate, the application has the advantages of simple structure, convenient use, suitability for the winding of large three-dimensional winding cores of various sizes and wide application range.

Description

A winding device for large three-dimensional wound core transformers Technical Field

[0001] This invention relates to the field of winding technology for large three-dimensional wound core transformers, specifically to a winding device for large three-dimensional wound core transformers. Background Technology

[0002] A three-dimensional wound core transformer is generally composed of three identical single-frame iron cores arranged in a triangular three-dimensional configuration. When winding copper foil into the three-dimensional wound core, three coil sleeves are fitted onto the iron core, and one end of the copper foil is fixed to the coil sleeve. Then, two winding gears are clamped on both sides of the coil sleeve. Generally, the winding gears are composed of two semi-circular toothed rings. During installation, the two toothed rings are clamped onto the coil sleeve and then positioned with screws. The drive mechanism drives the coil sleeve to rotate, and the copper foil is wound onto the coil sleeve. After all three winding sleeves are wound with copper foil, the winding stage of the three-dimensional wound core is completed.

[0003] Metal foil rolls include various materials such as copper foil and aluminum foil. When the metal foil is wound around the iron core by a winding machine, the metal foil roll needs to be hoisted onto the feeding equipment by a crane. The metal foil roll is fed by rotating on the feeding equipment.

[0004] Large three-dimensional wound iron cores are too large and heavy to be used with existing ordinary winding machines. Moreover, existing winding machines are very troublesome in terms of iron core clamping and winding gear positioning. Both iron core positioning and winding gear positioning require a lot of time for calibration, which is very inconvenient. When winding the iron core of a large three-dimensional wound transformer, a large copper foil roll is required. Due to its large size and weight, the equipment has high requirements for size and stability. Adjusting the position of the copper foil roll is very difficult. Existing small winding machines and copper foil roll unloading equipment are simply not suitable. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a winding device for large three-dimensional wound core transformers. This device has a simple structure, is easy to use, and is suitable for winding large three-dimensional wound cores of various sizes, thus having a wide range of applications.

[0006] The technical solution adopted by the present invention is to provide a winding device for a large three-dimensional wound core transformer, including a feeding structure and a winding structure corresponding to the feeding structure. The three-dimensional wound core includes an iron core and a winding sleeve disposed on the iron core. The feeding structure includes a fixed plate, a metal foil bearing structure and an insulating film bearing structure disposed on the fixed plate. The metal foil bearing structure includes a first feeding drive motor disposed on the fixed plate, a rotating frame that is driven by the first feeding drive motor and suspended at the upper end of the fixed plate, and a first support frame disposed between the rotating frame and the fixed plate. The two ends of the rotating frame are rotatably disposed on the first support frame. The first feeding drive motor is disposed in the first support frame on one side of the rotating frame and its output end passes through the support frame and is driven by the rotating frame.

[0007] The insulating film bearing structure includes a second feeding drive motor disposed on the upper end of the fixed plate, a rotating roller that is connected to the second feeding drive motor and suspended on the upper end of the fixed plate, and a second support frame disposed between the rotating roller and the fixed plate. The two ends of the rotating roller are rotatably connected to the second support frame. The second feeding drive motor is disposed in the second support frame on one side of the rotating roller and its output end passes through the second support frame and is connected to the rotating roller. The rotating frame corresponds to the rotating roller and the iron core in sequence.

[0008] The winding structure includes a base plate, a drive structure mounted on the base plate, a fixing structure mounted on the base plate, and a clamping structure mounted on the base plate. The drive structure includes a first winding drive motor mounted on the base plate, a drive frame mounted on the base plate, a first gear mounted on the drive frame, and a second gear engaged with the winding sleeve and meshing with the first gear. The first winding drive motor is connected to the first gear via a chain. The winding sleeve has a degree of freedom of rotation driven by the first winding drive motor to the second gear.

[0009] The clamping structure includes clamping plates spaced apart and correspondingly arranged, a limiting plate arranged inside the clamping plates, and a reinforcing connecting rod arranged between the clamping plates and located outside the limiting plate. The limiting plate is arranged in a triangular shape inside the clamping plates, and both ends of the iron core are respectively limited within the limiting plate.

[0010] The fixing structure includes fixed seats spaced apart and correspondingly arranged on the base plate, rollers arranged on the fixed seats, and a second wound drive motor arranged on one side of the fixed seats. The upper end of the fixed seat is provided with a semi-circular opening and a groove is provided in the opening. The outer circumference of the roller is provided with an annular groove and is rotatably arranged in the groove. The clamping plate is embedded in the annular groove of the roller. The second wound drive motor is connected to the roller via a chain for transmission. The roller has a degree of freedom of rotation driven by the second wound drive motor.

[0011] The feeding structure also includes a tensioning structure that is horizontally corresponding to the metal foil support structure and the insulating film support structure. The tensioning structure includes a third support frame that is horizontally corresponding to the rotating frame and the rotating roller, a first pair of rollers and a second pair of rollers that are rotatably mounted on the third support frame, and a third feeding drive motor and a fourth feeding drive motor that are mounted on one side of the third support frame. The third feeding drive motor and the fourth feeding drive motor are respectively connected to the first pair of rollers and the second pair of rollers for transmission. The first pair of rollers and the second pair of rollers are spaced vertically apart.

[0012] The first pair of rollers and the second pair of rollers are provided in two sets and are arranged horizontally at intervals. The third feeding drive motor and the fourth feeding drive motor are provided in one set and are connected to the first pair of rollers and the second pair of rollers located outside the third support frame.

[0013] A first feeding sliding structure is also provided between the metal foil bearing structure and the fixed plate. The first feeding sliding structure includes a feeding slide rail on the fixed plate, a feeding slide plate slidably disposed on the feeding slide rail, a translation motor disposed on one side of the fixed plate, a connecting plate with a screw hole disposed at the lower end of the feeding slide plate, and a feeding screw disposed between the translation motor and the connecting plate. One end of the feeding screw is driven to the output end of the translation motor, and the other end is threaded to the connecting plate. The feeding slide plate has the freedom to move longitudinally on the fixed plate by means of the translation motor. A second feeding sliding structure is provided between the second support frame and the fixed plate. The second feeding sliding structure has the same structure as the first feeding sliding structure.

[0014] The rotating frame includes a drive shaft that is connected to a first feeding drive motor, an arc-shaped plate disposed on the outer periphery of the drive shaft, a connecting seat disposed between the arc-shaped plate and the drive shaft, and a baffle disposed on the end of the drive shaft that is connected to the first feeding drive motor. The arc-shaped plate is connected to the outer periphery of the drive shaft through the connecting seat and is disposed around the outer periphery of the drive shaft. Multiple arc-shaped plates form a circular structure on their outer periphery. The end of the arc-shaped plate facing the first feeding drive motor is fixed to the baffle. Both ends of the drive shaft are rotatably mounted on a first support frame.

[0015] A first magnetic powder clutch is provided between the first feeding drive motor and the rotating frame, a second magnetic powder clutch is provided between the second feeding drive motor and the rotating roller, and a third magnetic powder clutch is provided between the third feeding drive motor and the first pair of rollers.

[0016] At least four rollers are provided along the groove, two of which are located at the bottom of the semi-circular opening of the fixed base, and the other two are located on the upper inner side of the semi-circular opening of the fixed base.

[0017] A first winding sliding structure is provided between the fixed base and the base plate. The first winding sliding structure includes a third winding drive motor on the base plate, a first winding slide rail on the base plate, a winding slide plate on the bottom of the fixed base, a first winding screw, and a fixing block with a screw hole. The outer end of the first winding screw is connected to the third winding drive motor, and the other end is connected to the fixing block through the screw hole. The fixed base is slidably mounted on the first winding slide rail by means of the winding slide plate.

[0018] The drive frame is provided in two sets, which are respectively located inside the two fixed seats and correspond to the fixed seats. The upper end of the drive frame is rotatably provided with a rotating shaft, and the two ends of the rotating shaft pass through the two drive frames respectively. The first wound drive motor is connected to one end of the rotating shaft by means of a chain. The rotating shaft is connected to the first gear by means of a chain. The drive frame has the same shape as the fixed seat and its height is higher than that of the fixed seat. The upper end of the drive frame is hinged with a suspension, and the first gear is provided on the suspension.

[0019] A second winding sliding structure is provided between the drive frame and the winding slide plate. The second winding sliding structure includes a second winding slide rail provided on the winding slide plate and a second winding screw provided on one side of the fixed seat. The drive frame is slidably mounted on the winding slide plate by means of the second winding slide rail. The drive frame is provided with a screw hole. One end of the second winding screw is threadedly connected to the drive frame by means of the screw hole, and the other end is rotatably mounted on one side of the fixed seat by means of a shaft seat.

[0020] The beneficial effects of this invention are that it provides a winding device for large three-dimensional wound iron core transformers. The winding structure clamps the iron core through a clamping structure and limits the iron core through a fixing structure. A first winding drive motor, a first gear, and a second gear work together to drive the winding sleeve on the iron core to rotate. A second winding motor and rollers work together to drive the clamping plate to rotate, i.e., the iron core rotates. A third winding drive motor and a first winding screw work together to adjust the position of the winding slide plate, i.e., the position of the fixing seat. The rotation of the second winding screw adjusts the translation of the drive frame and adjusts the horizontal position of the first gear. The suspension adjusts the longitudinal position of the first gear. This structure is stable in operation, flexible and convenient to use, and suitable for most models and sizes of large three-dimensional wound iron cores.

[0021] The feeding structure uses a rotating frame to support the metal foil roll, and a first feeding drive motor drives the rotating frame to rotate and release the material. A rotating roller supports the insulating film roll, and a second feeding drive motor drives the rotating roller to rotate and release the material. The longitudinal position of the rotating frame is adjusted by the translation of the feeding slide plate, and the longitudinal position of the rotating roller, i.e. the position of the insulating film, is adjusted by the second feeding sliding structure. This allows it to be used for metal foil rolls of various sizes, making it more versatile and convenient to use. Attached Figure Description

[0022] Figure 1 is a top view of the structure of the present invention;

[0023] Figure 2 is a side view sectional view of the feeding structure.

[0024] Figure 3 is a three-dimensional structural diagram of the winding structure;

[0025] Figure 4 is an enlarged view of A in Figure 3;

[0026] Figure 5 is a schematic diagram of the clamping plate;

[0027] Figure 6 is a schematic diagram of the fixed base.

[0028] In the attached diagram: 1. Iron core; 2. Winding sleeve; 3. Fixing plate; 4. Rotating frame; 5. First support frame; 6. Rotating roller; 7. Second support frame; 8. Base plate; 9. First winding drive motor; 10. Drive frame; 11. First gear; 12. Second gear; 13. Clamping plate; 14. Limiting plate; 15. Reinforcing connecting rod; 16. Fixing seat; 17. Roller; 18. Second winding drive motor; 19. Annular groove; 20. Third support frame; 21. First pair of rollers; 22. Second pair of rollers; 23. 24. Third feeding drive motor, 25. Fourth feeding drive motor, 26. Feeding slide rail, 27. Feeding slide plate, 28. Translation motor, 29. Connecting plate, 30. Feeding screw, 31. Drive shaft, 32. Arc plate, 33. Connecting seat, 34. Baffle, 35. Third winding drive motor, 36. First winding slide rail, 37. Winding slide plate, 38. First winding screw, 39. Fixing block, 40. Rotating shaft, 41. Suspension, 42. Second winding slide rail, 43. Second winding screw. Detailed Implementation

[0029] As shown in Figures 1-6, the present invention provides a winding device for a large three-dimensional wound core transformer, including a feeding structure and a winding structure corresponding to the feeding structure. The three-dimensional wound core includes a core 1 and a winding sleeve 2 disposed on the core 1. The feeding structure includes a fixed plate 3, a metal foil bearing structure and an insulating film bearing structure disposed on the fixed plate 3. The metal foil bearing structure includes a first feeding drive motor disposed on the fixed plate 3, a rotating frame 4 that is connected to the first feeding drive motor and suspended above the fixed plate 3, and a first support frame 5 disposed between the rotating frame 4 and the fixed plate 3. The two ends of the rotating frame 4 are rotatably disposed on the first support frame 5. The first feeding drive motor is disposed in the first support frame 5 on one side of the rotating frame 4 and its output end passes through the support frame and is connected to the rotating frame 4.

[0030] The three-dimensional coiled iron core is equipped with a winding sleeve 2. During winding, the metal foil strip roll is hoisted by a crane. The first support frame 5 without the motor end of the rotating frame is removed. The metal foil strip roll is placed on the rotating frame and then the removed first support frame 5 is installed. The installed metal foil strip roll is led out to the winding sleeve 2 of the iron core 1 and fixed. The rotating frame is driven to rotate by the first drive motor, which drives the metal foil roll to rotate for feeding. The winding sleeve 2 rotates synchronously, and the metal foil is wound on the winding sleeve 2. The first support frame 5 is set at both ends of the rotating frame to support the rotating frame and allow the rotating frame to be suspended.

[0031] The insulating film bearing structure includes a second feeding drive motor disposed on the upper end of the fixed plate 3, a rotating roller 6 that is connected to the second feeding drive motor and suspended on the upper end of the fixed plate 3, and a second support frame 7 disposed between the rotating roller 6 and the fixed plate 3. The two ends of the rotating roller 6 are rotatably connected to the second support frame 7. The second feeding drive motor is disposed in the second support frame 7 on one side of the rotating roller 6 and its output end passes through the second support frame 7 and is connected to the rotating roller 6. The rotating frame 4 corresponds to the rotating roller 6 and the iron core 1 in sequence.

[0032] The insulating film roll is hoisted by a crane. The second support frame 7 at the end of the rotating roller 6 without the motor is removed. The insulating film roll is then fitted onto the rotating roller 6, and the removed second support frame 7 is reinstalled. The insulating tape on the insulating film roll is led out and fixed onto the winding sleeve 2. The rotating roller 6 is driven to rotate by the second drive motor, which in turn drives the insulating film roll to rotate. The winding sleeve 2 rotates synchronously, so that the insulating film and the metal foil are wound onto the winding sleeve 2 at the same time. The second support frame 7 is set at both ends of the rotating roller 6 to support the rotating roller 6, so that the rotating roller 6 can be suspended in the air.

[0033] The winding structure includes a base plate 8, a driving structure mounted on the base plate 8, a fixing structure mounted on the base plate 8, and a clamping structure mounted on the base plate 8. The driving structure includes a first winding drive motor 9 mounted on the base plate 8, a drive frame 10 mounted on the base plate 8, a first gear 11 mounted on the drive frame 10, and a second gear 12 engaged with the winding sleeve 2 and meshing with the first gear 11. The first winding drive motor 9 is connected to the first gear 11 via a chain. The winding sleeve 2 has a degree of freedom of rotation by driving the second gear 12 via the first winding drive motor 9.

[0034] The second gear 12 is composed of two semi-circular gears joined together and engaged at both ends of the winding sleeve 2 of the iron core 1. The first winding drive motor 9 drives the first gear 11 on the drive frame 10 to rotate via a chain. The first gear 11 meshes with the second gear 12 and drives the second gear 12 to rotate. The second gear 12 drives the winding sleeve 2 to rotate synchronously with the rotating frame, thereby winding the metal foil and insulating film onto the winding sleeve 2.

[0035] The clamping structure includes clamping plates 13 spaced apart and correspondingly arranged, a limiting plate 14 disposed inside the clamping plate 13, and a reinforcing connecting rod 15 disposed between the clamping plates 13 and located outside the limiting plate 14. The limiting plate 14 is arranged in a triangular shape inside the clamping plate 13, and both ends of the iron core 1 are respectively limited within the limiting plate 14.

[0036] The clamping structure is designed to clamp the iron core 1. The two clamping plates 13 are fixed together by the reinforcing connecting rod 15, and the iron core 1 is clamped between the two clamping plates 13. The two ends of the iron core 1 are limited by the limiting plate 14, thereby completing the clamping of the iron core 1.

[0037] The fixing structure includes fixed seats 16 spaced apart and correspondingly arranged on the base plate 8, rollers 17 arranged on the fixed seats 16, and a second wound drive motor 18 arranged on one side of the fixed seats 16. The upper end of the fixed seat 16 is provided with a semi-circular opening and a groove is provided in the opening. The outer periphery of the roller 17 is provided with an annular groove 19 and is rotatably arranged in the groove. The clamping plate 13 is embedded in the annular groove 19 of the roller 17. The second wound drive motor 18 is connected to the roller 17 by means of a chain. The roller 17 has a degree of freedom of rotation driven by the second wound drive motor 18.

[0038] The clamping plate 13 is placed on the roller 17 on the fixed base 16. The annular groove 19 on the roller 17 limits the clamping plate 13. In use, one end of the metal foil is fixed to the winding sleeve 2. The winding sleeve 2 is driven to rotate by the drive structure to wind the copper foil onto the iron core 1. After winding one winding sleeve 2, the clamping plate 13 is rotated to rotate the next winding sleeve 2 to the current position. Since the roller 17 limits the clamping plate 13, the position of the iron core will not shift after rotating the clamping plate 13. There is no need to recalibrate, which is very convenient to use. The roller 17 rotates under the drive of the second winding drive motor 18. The number of rotations of the roller 17 is precisely controlled, which is the rotation distance of the clamping plate 13.

[0039] As shown in Figures 1-2, the feeding structure also includes a tensioning structure that is horizontally corresponding to the metal foil bearing structure and the insulating film bearing structure. The tensioning structure includes a third support frame 20 that is horizontally corresponding to the rotating frame 4 and the rotating roller 6, a first pair of rollers 21 and a second pair of rollers 22 that are rotatably mounted on the third support frame 20, and a third feeding drive motor 23 and a fourth feeding drive motor 24 that are mounted on one side of the third support frame 20. The third feeding drive motor 23 and the fourth feeding drive motor 24 are respectively connected to the first pair of rollers 21 and the second pair of rollers 22 for transmission. The first pair of rollers 21 and the second pair of rollers 22 are arranged vertically at intervals.

[0040] The tensioning structure is positioned between the insulating film support structure and the winding structure. The first pair of rollers 21 is driven to rotate by the third feeding drive motor 23, and the second pair of rollers 22 is driven to rotate by the fourth feeding drive motor 24. The metal foil is drawn from the metal foil roll and extends onto the winding machine via the first pair of rollers 21. The first pair of rollers 21 clamps the metal foil to ensure that it remains taut, thus improving the winding quality. The insulating film is drawn from the insulating film roll and extends onto the winding machine via the second pair of rollers 22. The second pair of rollers 22 clamps the insulating film to ensure that it remains taut, further improving the winding quality.

[0041] As shown in Figures 1-2, the first pair of rollers 21 and the second pair of rollers 22 are arranged in two sets and are horizontally spaced apart. The third feeding drive motor 23 and the fourth feeding drive motor 24 are arranged in one set and are connected to the first pair of rollers 21 and the second pair of rollers 22 located outside the third support frame 20.

[0042] Two sets of first rollers 21 and second rollers 22 clamp the metal foil and insulating film at intervals. The metal foil and insulating film first pass through the first rollers 21 and second rollers 22 without drive, ensuring that the first rollers 21 and second rollers 22 are kept in a tensioned state with the rotating frame and the rotating roller 6, thus improving the winding quality. The second set of rollers 21 and second rollers 22, which are close to the winding structure, are driven by the third feeding drive motor 23 and the fourth feeding drive motor 24, ensuring that the first rollers 21 and second rollers 22 of the second set are kept in a tensioned state with the first rollers 21 and second rollers 22 of the first set, and at the same time ensuring that the first rollers 21 and second rollers 22 of the second set are kept in a tensioned state with the winding structure. It is not necessary to install drive motors on all of them, thus reducing the cost of use.

[0043] As shown in Figures 3-4, a first feeding sliding structure is also provided between the metal foil bearing structure and the fixed plate 3. The first feeding sliding structure includes a feeding slide rail 25 provided on the fixed plate 3, a feeding slide plate 26 slidably provided on the feeding slide rail 25, a translation motor 27 provided on one side of the fixed plate 3, a connecting plate 28 with a screw hole provided at the lower end of the feeding slide plate 26, and a feeding screw 29 provided between the translation motor 27 and the connecting plate 28. One end of the feeding screw 29 is connected to the output end of the translation motor 27 for transmission, and the other end is threadedly connected to the connecting plate 28. The feeding slide plate 26 has a degree of freedom to move longitudinally on the fixed plate 3 by means of the translation motor 27. A second feeding sliding structure is provided between the second support frame 7 and the fixed plate 3. The second feeding sliding structure has the same structure as the first feeding sliding structure.

[0044] The translation motor 27 drives the feeding screw 29 to rotate. The connecting plate 28 moves on the feeding screw 29 via a thread, which drives the feeding slide plate 26 to move on the feeding slide rail 25. When using metal foil rolls of different sizes, the longitudinal position of the metal foil roll can be adjusted by translating the feeding slide plate 26. The second sliding structure can adjust the longitudinal position of the insulating film roll, so that the insulating film roll can correspond to the metal foil roll and the winding machine. It is suitable for insulating film rolls of various sizes and has a wider range of applications.

[0045] As shown in Figures 3-4, the rotating frame 4 includes a transmission shaft 30 that is connected to the first feeding drive motor, an arc-shaped plate 31 disposed on the outer periphery of the transmission shaft 30, a connecting seat 32 disposed between the arc-shaped plate 31 and the transmission shaft 30, and a baffle 33 disposed on the end of the transmission shaft 30 that is connected to the first feeding drive motor. The arc-shaped plate 31 is connected to the outer periphery of the transmission shaft 30 through the connecting seat 32 and is disposed around the outer periphery of the transmission shaft 30. The outer periphery of multiple arc-shaped plates 31 forms a circular structure. The end of the arc-shaped plate 31 facing the first feeding drive motor is fixed on the baffle 33. The two ends of the transmission shaft 30 are rotatably disposed on the first support frame 5.

[0046] Driven by the first drive motor, the drive shaft 30 rotates on the first support frame 5. There are at least three arc-shaped plates 31 arranged around the drive shaft 30. The diameter of the rotating frame is increased to match the shaft hole of the metal foil roll. Compared with using an integral solid shaft, the weight and cost are greatly reduced.

[0047] As shown in Figures 1-6, a first magnetic powder clutch is provided between the first feeding drive motor and the rotating frame 4, a second magnetic powder clutch is provided between the second feeding drive motor and the rotating roller 6, and a third magnetic powder clutch is provided between the third feeding drive motor 23 and the first pair of rollers 21.

[0048] By adding magnetic powder clutches between each drive motor and shaft, the metal foil and insulating film are kept taut as they move toward the winding machine, thereby improving the quality of the coils wound in the transformer.

[0049] As shown in Figures 3-4, at least four rollers 17 are provided along the groove, two of which are located at the bottom of the semi-circular opening of the fixed base 16, and the other two are located on the upper inner side of the semi-circular opening of the fixed base 16.

[0050] The rollers 17 are arranged in a semi-circular structure, which increases the friction between the rollers 17 and the clamping plate 13. The clamping plate 13 itself is circular, which makes it more stable when the clamping plate 13 rotates on the rollers 17, and makes it easier to control the rotation trajectory and distance of the clamping plate 13.

[0051] As shown in Figures 3-6, a first winding sliding structure is provided between the fixed base 16 and the base plate 8. The first winding sliding structure includes a third winding drive motor 34 disposed on the base plate 8, a first winding slide rail 35 disposed on the base plate 8, a winding slide plate 36 disposed at the bottom of the fixed base 16, a first winding screw 37, and a fixing block 38 with a screw hole. The outer end of the first winding screw 37 is connected to the third winding drive motor 34 for transmission, and the other end is connected to the fixing block 38 through the screw hole. The fixed base 16 is slidably disposed on the first winding slide rail 35 by means of the winding slide plate 36.

[0052] The third winding drive motor 34 drives the first winding screw 37 to rotate. The first winding screw 37 is fixed on the base plate 8 by a bearing seat and its position is fixed. When the first winding screw 37 rotates, it drives the winding slide plate 36 to move through the fixing block 38, that is, the fixing seat 16 moves, thereby adjusting the distance between the two fixing seats 16, so that the fixing seat 16 can be used for different types of three-dimensional wound iron cores, making it more applicable and easier to adjust.

[0053] As shown in Figures 3-6, the drive frame 10 is provided in two sets and is respectively located inside the two fixed seats 16 and corresponds to the fixed seats 16. The upper end of the drive frame 10 is rotatably provided with a rotating shaft 39, and the two ends of the rotating shaft 39 pass through the two drive frames 10 respectively. The first wound drive motor 9 is connected to one end of the rotating shaft 39 by means of a chain. The rotating shaft 39 is connected to the first gear 11 by means of a chain. The drive frame 10 has the same shape as the fixed seat 16 and its height is higher than that of the fixed seat 16. The upper end of the drive frame 10 is hinged with a suspension 40, and the first gear 11 is provided on the suspension 40.

[0054] The positions of the two drive frames 10 correspond to the two second gears 12 on the winding sleeve 2. The first gear 11 on the two drive frames 10 can be driven by a rotating shaft 39, so that the second gear 12 can rotate synchronously.

[0055] As shown in Figures 3-6, a second winding sliding structure is provided between the drive frame 10 and the winding slide plate 36. The second winding sliding structure includes a second winding slide rail 41 provided on the winding slide plate 36 and a second winding screw 42 provided on one side of the fixed seat 16. The drive frame 10 is slidably mounted on the winding slide plate 36 by means of the second winding slide rail 41. The drive frame 10 is provided with a screw hole. One end of the second winding screw 42 is threadedly connected to the drive frame 10 by means of the screw hole, and the other end is rotatably mounted on one side of the fixed seat 16 by means of a shaft seat.

[0056] The second winding screw 42 can be driven by a motor or manually rotated by a handle. The second winding screw 42 is threadedly connected to the drive frame 10. When the second winding screw 42 rotates, the drive frame 10 is pushed to move due to the thread action, thereby adjusting the position of the first gear 11 so that the first gear 11 can correspond to the second gear 12, so as to use different models of three-dimensional wound iron cores.

Claims

1. A winding device for a large three-dimensional wound core transformer, comprising a feeding structure and a winding structure corresponding to the feeding structure, wherein the three-dimensional wound core comprises a core (1) and a winding sleeve (2) disposed on the core (1), characterized in that: The feeding structure includes a fixed plate (3), a metal foil support structure and an insulating film support structure correspondingly disposed on the fixed plate (3). The metal foil support structure includes a first feeding drive motor disposed on the fixed plate (3), a rotating frame (4) connected to the first feeding drive motor and suspended above the fixed plate (3), and a first support frame (5) disposed between the rotating frame (4) and the fixed plate (3). The two ends of the rotating frame (4) are rotatably disposed on the first support frame (5). The first feeding drive motor is disposed inside the first support frame (5) on one side of the rotating frame (4) and its output end passes through the support frame and is connected to the rotating frame (4). The insulating film support structure includes a second feeding drive motor disposed on the upper end of the fixed plate (3), a metal foil support structure and an insulating film support structure. A feeding drive motor is connected to and suspended above a fixed plate (3) of a rotating roller (6) and a second support frame (7) between the rotating roller (6) and the fixed plate (3). The two ends of the rotating roller (6) are rotatably connected to the second support frame (7). The second feeding drive motor is located inside the second support frame (7) on one side of the rotating roller (6) and its output end passes through the second support frame (7) and is connected to the rotating roller (6). The rotating frame (4) corresponds to the rotating roller (6) and the iron core (1) in sequence. The winding structure includes a base plate (8), a driving structure on the base plate (8), a fixing structure on the base plate (8), and a clamping structure on the base plate (8). The driving structure includes a first winding drive motor (9) on the base plate (8). The structure includes a drive frame (10) mounted on a base plate (8), a first gear (11) mounted on the drive frame (10), and a second gear (12) engaged with the winding sleeve (2) and meshing with the first gear (11). The first winding drive motor (9) is connected to the first gear (11) via a chain. The winding sleeve (2) drives the second gear (12) via the first winding drive motor (9) and has a degree of freedom of rotation. The clamping structure includes clamping plates (13) spaced apart and correspondingly arranged, a limiting plate (14) arranged inside the clamping plate (13), and a reinforcing connecting rod (15) arranged between the clamping plates (13) and located outside the limiting plate (14). The limiting plate (14) is arranged in a triangular shape inside the clamping plate (13). The two ends of the iron core (1) are respectively limited within the limiting plate (14); the fixing structure includes a fixed seat (16) spaced apart and correspondingly arranged on the base plate (8), a roller (17) arranged on the fixed seat (16) and a second winding drive motor (18) arranged on one side of the fixed seat (16). The upper end of the fixed seat (16) is provided with a semi-circular opening and a groove is provided in the opening. The outer periphery of the roller (17) is provided with an annular groove (19) and is rotatably arranged in the groove. The clamping plate (13) is embedded in the annular groove (19) of the roller (17). The second winding drive motor (18) is connected to the roller (17) by means of a chain. The roller (17) is driven by the second winding drive motor (18) and has a degree of freedom of rotation.

2. The winding device for a large three-dimensional wound core transformer according to claim 1, characterized in that: The feeding structure also includes a tensioning structure that is horizontally corresponding to the metal foil support structure and the insulating film support structure. The tensioning structure includes a third support frame (20) that is horizontally corresponding to the rotating frame (4) and the rotating roller (6), a first pair of rollers (21) and a second pair of rollers (22) that are rotatably arranged on the third support frame (20), and a third feeding drive motor (23) and a fourth feeding drive motor (24) arranged on one side of the third support frame (20). The third feeding drive motor (23) and the fourth feeding drive motor (24) are respectively connected to the first pair of rollers (21) and the second pair of rollers (22) for transmission. The first pair of rollers (21) and the second pair of rollers (22) are arranged vertically and vertically.

3. A winding device for a large three-dimensional wound core transformer according to claim 2, characterized in that: The first pair of rollers (21) and the second pair of rollers (22) are arranged in two sets and are horizontally spaced apart. The third feeding drive motor (23) and the fourth feeding drive motor (24) are arranged in one set and are connected to the first pair of rollers (21) and the second pair of rollers (22) located outside the third support frame (20).

4. A winding device for a large three-dimensional wound core transformer according to claim 1, characterized in that: A first feeding sliding structure is also provided between the metal foil bearing structure and the fixed plate (3). The first feeding sliding structure includes a feeding slide rail (25) provided on the fixed plate (3), a feeding slide plate (26) slidably provided on the feeding slide rail (25), a translation motor (27) provided on one side of the fixed plate (3), a connecting plate (28) with a screw hole provided at the lower end of the feeding slide plate (26), and a feeding screw (29) provided between the translation motor (27) and the connecting plate (28). One end of the feeding screw (29) is connected to the output end of the translation motor (27) and the other end is threaded to the connecting plate (28). The feeding slide plate (26) is driven by the translation motor (27) and has the freedom to move longitudinally on the fixed plate (3). A second feeding sliding structure is provided between the second support frame (7) and the fixed plate (3). The second feeding sliding structure has the same structure as the first feeding sliding structure.

5. A winding device for a large three-dimensional wound core transformer according to claim 1, characterized in that: The rotating frame (4) includes a transmission shaft (30) that is connected to the first feeding drive motor, an arc plate (31) disposed on the outer periphery of the transmission shaft (30), a connecting seat (32) disposed between the arc plate (31) and the transmission shaft (30), and a baffle (33) disposed on the end of the transmission shaft (30) that is connected to the first feeding drive motor. The arc plate (31) is connected to the outer periphery of the transmission shaft (30) through the connecting seat (32) and is disposed around the outer periphery of the transmission shaft (30). Multiple arc plates (31) form a circular structure on their outer periphery. The end of the arc plate (31) facing the first feeding drive motor is fixed on the baffle (33). Both ends of the transmission shaft (30) are rotatably disposed on the first support frame (5).

6. A winding device for a large three-dimensional wound core transformer according to claim 3, characterized in that: A first magnetic powder clutch is provided between the first feeding drive motor and the rotating frame (4), a second magnetic powder clutch is provided between the second feeding drive motor and the rotating roller (6), and a third magnetic powder clutch is provided between the third feeding drive motor (23) and the first pair of rollers (21).

7. A winding device for a large three-dimensional wound core transformer according to claim 6, characterized in that: At least four rollers (17) are provided along the groove, two of which are located at the bottom of the semi-circular opening of the fixed seat (16), and the other two are located on the upper inner side of the semi-circular opening of the fixed seat (16).

8. A winding device for a large three-dimensional wound core transformer according to claim 1, characterized in that: A first winding sliding structure is provided between the fixed seat (16) and the base plate (8). The first winding sliding structure includes a third winding drive motor (34) on the base plate (8), a first winding slide rail (35) on the base plate (8), a winding slide plate (36) at the bottom of the fixed seat (16), a first winding screw (37), and a fixing block (38) with a screw hole. The outer end of the first winding screw (37) is connected to the third winding drive motor (34) for transmission, and the other end is connected to the fixing block (38) through the screw hole. The fixed seat (16) is slidably disposed on the first winding slide rail (35) by means of the winding slide plate (36).

9. A winding device for a large three-dimensional wound core transformer according to claim 8, characterized in that: The drive frame (10) is provided in two sets and is respectively located inside the two fixed seats (16) and corresponds to the fixed seats (16). The upper end of the drive frame (10) is rotatably provided with a rotating shaft (39). The two ends of the rotating shaft (39) pass through the two drive frames (10) respectively. The first wound drive motor (9) is connected to one end of the rotating shaft (39) by means of a chain. The rotating shaft (39) is connected to the first gear (11) by means of a chain. The drive frame (10) has the same shape as the fixed seat (16) and its height is higher than that of the fixed seat (16). The upper end of the drive frame (10) is hinged with a suspension (40). The first gear (11) is located on the suspension (40).

10. A winding device for a large three-dimensional wound core transformer according to claim 9, characterized in that: A second winding sliding structure is provided between the drive frame (10) and the winding slide plate (36). The second winding sliding structure includes a second winding slide rail (41) provided on the winding slide plate (36) and a second winding screw (42) provided on one side of the fixed seat (16). The drive frame (10) is slidably mounted on the winding slide plate (36) by means of the second winding slide rail (41). The drive frame (10) is provided with a screw hole. One end of the second winding screw (42) is threadedly connected to the drive frame (10) by means of the screw hole, and the other end is rotatably mounted on one side of the fixed seat (16) by means of the shaft seat.

Images