Winding device of three-dimensional wound core transformer

Abstract

The utility model relates to the technical field of transformers, in particular to a three-dimensional wound core transformer winding device which comprises a rack, a winding mechanism and a winding auxiliary mechanism, one end of the rack is provided with a first wire roller and a second wire roller, the other end of the rack is provided with a material conveying machine, the material conveying machine is arranged in the middle of the rack, and wound cores to be wound are conveyed on the material conveying machine; a plurality of mounting foot stools are arranged at the bottom of the rack, and a plurality of bolt mounting holes are formed in the mounting foot stools; the winding mechanism is arranged on the rack; the winding auxiliary mechanism is arranged on the rack; according to the device, a screw rod rotates by rotating a hand wheel, a fixed clamping piece clamps and fixes a wound core under the cooperation of a sliding groove and the screw rod, the wound core is jacked up in a suspended mode through a set of hydraulic cylinders, and when one connecting shaft is driven by the output end of a third motor to rotate, the wound core rotates, so that the wound core is fixed. And the wound core can be conveniently and automatically adjusted to the winding position of the next coil.

Description

Technical Field

[0001] This application relates to the field of transformers, and particularly to a winding device for a three-dimensional wound core transformer. Background Art

[0002] The key component of a three-dimensional wound core transformer is the three-dimensional wound core, which is formed by splicing three single-frame cores with exactly the same dimensions. The cross-sections of the core columns and yokes of each single-frame core are equal and close to a semi-circular shape. After splicing, the three core columns of the core are arranged in an equilateral triangle three-dimensional pattern, the cross-section of the core column is close to a circular shape, the magnetic path lengths of the three cores are the same, and the length of the yoke is the shortest. Therefore, the core is light in weight and has low no-load loss. It creatively reforms the laminated magnetic circuit structure and three-phase layout of traditional power transformers, optimizing the product performance. A winding device is required for coil winding.

[0003] Referring to the Chinese patent application with the publication number CN213935945U, a winding device for a non-crystalline three-dimensional wound core transformer with integrated wire and foil is disclosed. This device uses a winding gear set to completely suspend the coil, avoiding damage to the iron core during the winding process. The center distance between the driving gear and the driven gear is fixed, avoiding coil vibration during the winding process, reducing the gear wear rate and the noise during coil winding, effectively improving the winding speed and coil quality, and enabling the integrated winding of low-voltage foil coils and high-voltage wire coils.

[0004] However, in the prior art, after the winding of a single coil of the wound core is completed, the operator still needs to adjust the wound core to the position for the next coil winding, which is cumbersome and affects the winding efficiency of the wound core coils. Therefore, we have designed a winding device for a three-dimensional wound core transformer. Summary of the Utility Model

[0005] A winding device for a three-dimensional wound core transformer provided by an embodiment of this application can automatically adjust the wound core with a single coil wound, facilitating the winding of the next coil of the wound core, and solving the technical problems of improving the stability of the wound core and the winding efficiency of the coil.

[0006] An embodiment of this application provides a winding device for a three-dimensional wound core transformer, including: a frame, a winding mechanism, and a winding auxiliary mechanism. One end of the frame is provided with a first wire roller and a second wire roller, and the other end is provided with a feeder. A wound core to be wound is transported on the feeder.

[0007] The winding mechanism is arranged on the frame, and the winding mechanism includes an even wire table for evenly winding the wound core.

[0008] The winding auxiliary mechanism is arranged on the frame, and the winding auxiliary mechanism includes a group of mounting plates for improving the stability of the wound core and the winding efficiency of the coil.

[0009] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0010] 1. By rotating the handwheel in the present application, the lead screw rotates. With the cooperation of the fixed clamping piece in the chute and the lead screw, the wound iron core is clamped and fixed. When a set of hydraulic cylinders jack up the wound iron core and then the output end of the third motor drives one of the connecting shafts to rotate, the wound iron core rotates, which facilitates automatically adjusting the wound iron core to the position for the next coil winding.

[0011] 2. In the present application, a rubber clamping pad for increasing friction is provided on the surface of the fixed clamping piece in contact with the wound iron core, and a set of connecting shafts are passed through the wound iron core to prevent damage to the wound iron core and greatly reduce the shaking of the wound iron core during the coil winding process.

[0012] In some embodiments, the winding mechanism further includes:

[0013] A first motor, a driving shaft, a second motor, a set of first mounting bushings, a set of first gears, multiple sets of second mounting bushings and multiple sets of second gears. The first motor and the second motor are both fixedly installed on the outer side wall of the frame. The output end of the first motor is coaxially and fixedly connected with a mounting screw. A threaded hole adapted to the mounting screw is provided on the wire equalizing table. A light shaft is provided inside the frame, and a circular hole adapted to the light shaft is provided on the wire equalizing table;

[0014] The output end of the second motor is coaxially and fixedly connected with the driving shaft. A set of the first mounting bushings are symmetrically arranged on the driving shaft, and a set of the first gears are respectively coaxially and fixedly connected with a set of the first mounting bushings;

[0015] Multiple sets of the second mounting bushings are respectively symmetrically sleeved on the wound iron core. A set of the second gears are coaxially and fixedly connected with the second mounting bushings, and a set of the first gears are respectively meshed and driven with a set of the second gears.

[0016] In some embodiments, the feeder is arranged in the middle of the frame.

[0017] In some embodiments, a limiting groove is provided on the frame, and the feeder is arranged above the limiting groove.

[0018] In some embodiments, the winding auxiliary mechanism further includes:

[0019] A set of fixed sleeve shafts, a set of connecting shafts, a third motor, a set of hydraulic cylinders, a set of sliding blocks, a fourth motor and a bidirectional screw. The bidirectional screw is arranged in the limiting groove. A set of the sliding blocks are symmetrically arranged in the limiting groove. The output end of the fourth motor is coaxially and fixedly connected with the bidirectional screw. A set of the sliding blocks are respectively provided with threaded through holes corresponding to the threads of the bidirectional screw;

[0020] One end of each group of hydraulic cylinders is fixedly connected to a group of sliding blocks respectively, and the other end is fixedly connected to a group of fixed sleeve shafts respectively. A group of the fixed sleeve shafts are symmetrically arranged at both ends of the conveyor, and a group of the fixed sleeve shafts are coaxially and rotatably connected to a group of connecting shafts respectively. A group of the connecting shafts are coaxially and fixedly connected to a group of mounting disks respectively. The third motor is coaxially and fixedly connected to one of the connecting shafts.

[0021] A plurality of chutes are formed in the mounting disk. A lead screw is installed in the chute. The lead screw is coaxially and fixedly connected to a hand wheel. A fixed clamping piece is arranged in the chute. A threaded hole adapted to the lead screw is formed in the fixed clamping piece.

[0022] In some embodiments, a rubber pad is arranged on the surface of the fixed clamping piece close to the wound core. A connecting convex block and a connecting groove are respectively arranged on a group of the connecting shafts.

[0023] In some embodiments, a plurality of mounting feet are arranged at the bottom of the frame. A plurality of bolt mounting holes are formed in the mounting feet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 Schematic diagram of the installation structure of a three-dimensional wound core transformer winding device and a wound core provided by an embodiment of the present application;

[0026] Figure 2 For Figure 1 the top view in

[0027] Figure 3 Schematic diagram of the overall structure of a three-dimensional wound core transformer winding device provided by an embodiment of the present application;

[0028] Figure 4 Schematic diagram of the winding auxiliary mechanism of a three-dimensional wound core transformer winding device provided by an embodiment of the present application.

[0029] Among them, each reference numeral in the figure:

[0030] 1. Frame; 11. Mounting feet; 12. Conveyor;

[0031] 2. Moving Average Platform; 21. First Line Roller; 22. Second Line Roller; 23. First Motor; 24. Drive Shaft; 25. Second Motor; 26. First Mounting Bushing; 27. First Gear

[0032] 3. Fixed Sleeve Shaft; 31. Mounting Disk; 311. Slide Groove; 312. Lead Screw; 313. Handwheel; 314. Fixed Clamping Plate; 32. Connecting Shaft; 321. Third Motor; 33. Hydraulic Cylinder; 34. Slide Block; 35. Fourth Motor; 36. Bi-Directional Screw

[0033] 4. Coil Core; 41. Second Mounting Bushing; 42. Second Gear Detailed Implementation Manner

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clear and understandable, the following further details this application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application.

[0038] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0039] In this application, "and / or" is merely an associative relationship describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0040] It should be noted that in this application, words such as "in this embodiment", "exemplarily", and "for example" are used to give examples, illustrations, or explanations. Any embodiment or design solution described as "in this embodiment", "exemplarily", or "for example" in this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Specifically, using words such as "in this embodiment", "exemplarily", and "for example" is intended to present relevant concepts in a specific manner, meaning that the specific features, structures, or characteristics described in combination with the embodiment may be included in at least one embodiment of this application. The appearance of the above words at various positions in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0041] Based on this, to address the problem in the related art that after a single coil of the wound core is wound, the operator still needs to adjust the wound core to the position for the next coil winding, which is cumbersome and affects the efficiency of the wound core coil winding, the embodiments of this application provide the following solutions.

[0042] Please refer to Figures 1 to 4 , a three-dimensional wound core transformer winding device includes: a frame 1, a winding mechanism, and a winding auxiliary mechanism. At one end of the frame 1, there is a first wire roller 21 and a second wire roller 22, and at the other end, there is a feeder 12. The feeder 12 is arranged in the middle of the frame 1, and the wound core 4 to be wound is transported on the feeder 12. At the bottom of the frame 1, there are a plurality of mounting brackets 11, and a plurality of bolt mounting holes are provided on the mounting brackets 11; the winding mechanism is arranged on the frame 1, and the winding mechanism includes an equalizing table 2 for uniformly winding the wound core 4; the winding auxiliary mechanism is arranged on the frame 1, and the winding auxiliary mechanism includes a set of mounting discs 31 for improving the stability of the wound core 4 and the winding efficiency of the coils.

[0043] First, the wound core 4 is conveyed between a set of mounting discs 31 by a feeder 12. A plurality of sets of second mounting bushings 41 are sequentially mounted on the wound core 4. The wires and insulating papers for winding the coil are respectively arranged on the first wire roller 21 and the second wire roller 22, and respectively pass through the corresponding through holes on the wire equalizing table 2, and finally are erected and fixed on one of the core columns of the wound core 4.

[0044] Please refer to Figures 1 to 3 , the winding mechanism further includes: a first motor 23, a drive shaft 24, a second motor 25, a set of first mounting bushings 26, a set of first gears 27, a plurality of sets of second mounting bushings 41 and a plurality of sets of second gears 42. The first motor 23 and the second motor 25 are both fixedly installed on the outer side wall of the frame 1. The output end of the first motor 23 is coaxially and fixedly connected with a mounting screw. A threaded hole adapted to the mounting screw is provided on the wire equalizing table 2. A smooth shaft is provided inside the frame 1, and a round hole adapted to the smooth shaft is provided on the wire equalizing table 2;

[0045] The output end of the second motor 25 is coaxially and fixedly connected with the drive shaft 24. A set of first mounting bushings 26 are symmetrically arranged on the drive shaft 24, and a set of first gears 27 are respectively coaxially and fixedly connected with a set of first mounting bushings 26;

[0046] A plurality of sets of second mounting bushings 41 are respectively symmetrically sleeved on the wound core 4. A set of second gears 42 are coaxially and fixedly connected with the second mounting bushings 41, and a set of first gears 27 are respectively meshed and driven with a set of second gears 42;

[0047] The effect of such a setting is that a set of first mounting bushings 26 are symmetrically mounted on the drive shaft 24, and the first mounting bushings 26 are coaxially and fixedly connected with the drive shaft 24 through fixing bolts. A set of second mounting bushings 41 are mounted on the wound core 4, and the second mounting bushings 41 are rotatably connected with the wound core 4. At the same time, a set of first gears 27 are coaxially and fixedly connected to the first mounting bushings 26, and a set of second gears 42 are coaxially and fixedly connected to the second mounting bushings 41, and a set of first gears 27 are respectively meshed and driven with a set of second gears 42;

[0048] Therefore, when the output end of the second motor 25 drives the drive shaft 24 to rotate, the wires and insulating papers erected and fixed on one of the sets of second mounting bushings 41 are wound on the wound core 4. By driving the mounting screw to rotate through the first motor 23, the wire equalizing table 2 reciprocates on the smooth shaft and the mounting screw, and the wires and insulating papers are evenly wound on the wound core 4.

[0049] Please refer to Figure 2 and Figure 3, the winding auxiliary mechanism further includes: a set of fixed sleeve shafts 3, a set of connecting shafts 32, a third motor 321, a set of hydraulic cylinders 33, a set of sliding blocks 34, a fourth motor 35 and a bidirectional screw 36. A limiting groove is provided on the frame 1, and the conveyor 12 is arranged above the limiting groove. The bidirectional screw 36 is arranged in the limiting groove. A set of sliding blocks 34 are symmetrically arranged in the limiting groove. The output end of the fourth motor 35 is coaxially and fixedly connected to the bidirectional screw 36. Thread through holes corresponding to the threads of the bidirectional screw 36 are respectively provided on a set of sliding blocks 34;

[0050] One end of a set of hydraulic cylinders 33 is respectively fixedly connected to a set of sliding blocks 34, and the other end is respectively fixedly connected to a set of fixed sleeve shafts 3. A set of fixed sleeve shafts 3 are symmetrically arranged at both ends of the conveyor 12. A set of fixed sleeve shafts 3 are respectively coaxially and rotatably connected to a set of connecting shafts 32. A set of connecting shafts 32 are respectively coaxially and fixedly connected to a set of mounting disks 31. The third motor 321 is coaxially and fixedly connected to one of the connecting shafts 32;

[0051] A plurality of sliding grooves 311 are provided on the mounting disk 31. A lead screw 312 is installed in the sliding groove 311. The lead screw 312 is coaxially and fixedly connected to a handwheel 313. A fixed clamping piece 314 is provided in the sliding groove 311. A threaded hole adapted to the lead screw 312 is provided on the fixed clamping piece 314;

[0052] The effect of such a setting is that the output end of the fourth motor 35 drives the bidirectional screw 36 to rotate, so that a set of sliding blocks 34 symmetrically arranged in the limiting groove move relative to each other in the limiting groove, facilitating the docking of a set of connecting shafts 32 and clamping and fixing the core 4 to be wound between a set of mounting disks 31. By rotating the handwheel 313, the lead screw 312 rotates, and the fixed clamping piece 314 is matched with the sliding groove 311 and the lead screw 312 to clamp and fix the core 4;

[0053] And a rubber clamping pad for increasing friction is provided on the surface of the fixed clamping piece 314 in contact with the core 4, which can prevent damage to the core 4 and greatly reduce the shaking of the core 4 during the coil winding process. After clamping and fixing the core 4, the core 4 is lifted into the air by a set of hydraulic cylinders 33, which is convenient for automatically adjusting the core 4 to the position of the next coil winding. The operation is simple and convenient, improving the efficiency of the coil winding of the core 4.

[0054] Please refer to Figure 3 and Figure 4 , a rubber pad is provided on the surface of the fixed clamping piece 314 close to the core 4, and a connecting convex block and a connecting groove are respectively provided on a set of connecting shafts 32;

[0055] The effect of such a setting is that it is convenient to coaxial dock a set of connecting shafts 32 and clamp and fix cores 4 of different sizes.

[0056] As can be seen from the above, the working principle of this application is as follows:

[0057] First, the wound core 4 is conveyed between a group of mounting disks 31 by the feeder 12. A plurality of groups of second mounting bushings 41 are sequentially mounted on the wound core 4. The wires and insulating papers for winding the coils are respectively arranged on the first wire roller 21 and the second wire roller 22, and respectively pass through the corresponding through holes in the equalizing table 2, and finally are erected and fixed on one of the groups of second mounting bushings 41;

[0058] After that, the output end of the fourth motor 35 drives a group of sliders 34 to move relative to each other in the limit slots, so that a group of connecting shafts 32 are docked, and the wound core 4 to be wound is clamped and fixed between a group of mounting disks 31. By rotating the handwheel 313, the lead screw 312 rotates. The fixed clamping piece 314 cooperates with the chute 311 and the lead screw 312 to clamp and fix the wound core 4. A group of hydraulic cylinders 33 jack up the wound core 4 to facilitate automatically adjusting the wound core 4 to the position for the next coil winding;

[0059] The first motor 23 drives the mounting screw to rotate, so that the equalizing table 2 reciprocates on the optical axis and the mounting screw, and the wires and insulating papers are evenly wound on the wound core 4; when the output end of the third motor 321 drives one of the connecting shafts 32 to rotate, the wound core 4 rotates, and the wound core 4 is automatically adjusted to the position for the next coil winding; when all the windings of the wound core 4 are completed, reverse the above steps, and finally convey the wound core 4 back through the feeder 12.

[0060] The above are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A three-dimensional wound core transformer winding device, characterized in that: include: A frame (1), a winding mechanism and a winding auxiliary mechanism, wherein a first wire roller (21) and a second wire roller (22) are provided at one end of the frame (1), and a conveyor (12) is provided at the other end, and a wound coil core (4) is transported on the conveyor (12); The winding mechanism is arranged on a frame (1), and comprises a winding table (2) for performing a uniform winding operation on a wound core (4); The winding auxiliary mechanism is arranged on the frame (1), and comprises a group of mounting plates (31) for improving the stability of the wound core (4) and the efficiency of winding the coil.

2. A three-dimensional wound core transformer winding device according to claim 1, characterized in that: The winding mechanism also includes: A first motor (23), a drive shaft (24), a second motor (25), a group of first mounting sleeves (26), a group of first gears (27), a plurality of groups of second mounting sleeves (41) and a plurality of groups of second gears (42), wherein the first motor (23) and the second motor (25) are both fixedly mounted on the outer wall of the frame (1), an output end of the first motor (23) is coaxially fixedly connected with a mounting screw, a threaded hole matching the mounting screw is provided on the averaging platform (2), an optical axis is provided in the frame (1), and a circular hole matching the optical axis is provided on the averaging platform (2); The output end of the second motor (25) is coaxially fixedly connected to the drive shaft (24), a group of the first mounting sleeves (26) are symmetrically arranged on the drive shaft (24), and a group of the first gears (27) are coaxially fixedly connected to a group of the first mounting sleeves (26); A plurality of groups of the second mounting sleeves (41) are symmetrically sleeved on the winding core (4), a group of the second gears (42) are coaxially fixedly connected to the second mounting sleeves (41), and a group of the first gears (27) are meshed and driven with a group of the second gears (42).

3. The three-dimensional wound core transformer winding device according to claim 1, characterized in that: The conveyor (12) is arranged in the middle of the frame (1).

4. A three-dimensional wound core transformer winding device according to claim 3, characterized in that: The frame (1) is provided with a limit slot, and the feeder (12) is arranged above the limit slot.

5. The three-dimensional wound core transformer winding device according to claim 4, characterized in that: The winding auxiliary mechanism also includes: A set of fixed sleeve shafts (3), a set of connecting shafts (32), a third motor (321), a set of hydraulic cylinders (33), a set of sliding blocks (34), a fourth motor (35) and a bidirectional screw (36), wherein the bidirectional screw (36) is arranged in a limiting groove, a set of sliding blocks (34) are symmetrically arranged in the limiting groove, an output end of the fourth motor (35) is coaxially fixedly connected to the bidirectional screw (36), and a set of sliding blocks (34) are respectively provided with threaded through holes corresponding to the threads of the bidirectional screw (36); One end of a group of hydraulic cylinders (33) is fixedly connected to a group of sliding blocks (34) respectively, and the other end is fixedly connected to a group of fixed sleeve shafts (3) respectively. A group of fixed sleeve shafts (3) are symmetrically arranged at both ends of the feeder (12). A group of fixed sleeve shafts (3) are coaxially rotatably connected to a group of connecting shafts (32) respectively. A group of connecting shafts (32) are coaxially fixedly connected to a group of mounting plates (31). The third motor (321) is coaxially fixedly connected to one of the connecting shafts (32). The mounting plate (31) is provided with a plurality of slide grooves (311), a screw rod (312) is installed in the slide groove (311), the screw rod (312) is coaxially fixedly connected with a hand wheel (313), a fixed clamping piece (314) is provided in the slide groove (311), and a threaded hole matched with the screw rod (312) is provided on the fixed clamping piece (314).

6. A three-dimensional wound core transformer winding device according to claim 5, characterized in that: A rubber pad is provided on one surface of the fixed clamping piece (314) close to the wound core (4), and a set of connecting shafts (32) are respectively provided with connecting protrusions and connecting grooves.

7. The three-dimensional wound core transformer winding device according to claim 1, characterized in that: A plurality of mounting brackets (11) are provided at the bottom of the frame (1), and a plurality of bolt mounting holes are provided on the mounting brackets (11).

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