A three-dimensional wound core transformer gear mold limiting device

Abstract

This invention discloses a three-dimensional winding core transformer gear mold limiting device, including an axial limiting unit comprising an axial limiting fixing plate, a steering connecting plate perpendicularly connected to the axial limiting fixing plate, a tightening assembly connected to the steering connecting plate, and pin bolts for connecting the axial limiting fixing plate, the steering connecting plate, and the core clamps; and a circumferential rotation limiting unit comprising a circumferential limiting body, a locking block that dynamically engages with the guide groove of the circumferential limiting body, an adjusting screw that engages with the locking block, a mounting plate that engages with the adjusting screw, a transition rod connected to the circumferential limiting body, a pin for connecting the circumferential limiting body and the transition rod, a fixing plate connected to the transition rod, and an auxiliary fixing plate connected to the fixing plate and the gear mold fixing ring. The advantages of this invention are that the multi-row connecting hole design, combined with the precise positioning and tightening function of the pin bolts, can adapt to cores of different diameters and phase spacings, improving applicability and connection accuracy.

Description

Technical Field

[0001] This invention relates to the field of transformer manufacturing technology, and in particular to a gear mold limiting device for a three-dimensional wound core transformer. Background Technology

[0002] The three-dimensional wound core is composed of three identical core frames. The axes of the three single frames are at 120° to each other. The supporting surface is a plane at a 30° angle to the horizontal plane and an arc surface. Each single frame core is usually formed by continuously winding several long silicon steel sheets after bending and shearing. The magnetic circuit is evenly distributed throughout, avoiding the high magnetic resistance area formed by the joints of other core structures. There is no distortion of magnetic flux density at the joints. The three-dimensional wound core transformer has the advantages of small size, light weight, low no-load current and low noise.

[0003] The winding of a three-dimensional wound core transformer coil requires a gear mold to suspend the epoxy resin tube (paper tube) on the core column. The gear mold includes components such as left and right rotating gears, track rings, and fixing rings. Figure 1 The left and right rotating gears, track rings, and fixed rings are all half-circular structures, which are fitted onto the core column and then connected to form a ring structure. The track ring is assembled with the fixed ring by connecting bolts. The outer positioning step of the rotating gear matches the outer circumference of the track ring. The epoxy cylinder (paper cylinder) is installed on the inner positioning step of the left and right rotating gears. The fixed ring is fixed to the core column by set bolts, providing rotational support and axial positioning of the entire coil. The rotating gear rotates around the track ring, and the epoxy cylinder (paper cylinder) rotates together with the rotating gear, driving the electromagnetic wire (wire or foil) to rotate, thereby realizing the winding of the coil. With the development of three-dimensional wound core transformers towards high voltage and large capacity, new operating conditions have emerged, such as increased core window height, larger core column diameter, larger copper foil and electromagnetic wire specifications, and increased coil winding tension requirements. During the coil winding process, defects such as deformation of the epoxy tube (paper tube) and contact with the core column, insufficient tightening force of the fixing ring set bolt, failure of the axial and circumferential limit of the gear mold, loosening of the positioning step on the inner side of the left and right rotating gear from the epoxy tube (paper tube), inability to continue coil winding, and damage to the core due to the rotation of the fixing ring are among the quality defects that occur. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above or prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a three-dimensional gear mold limiting device for a wound core transformer, which can solve the problems of axial and circumferential limiting failure of the gear mold fixing ring during the winding of large-capacity, high-voltage transformer coils, the inability to continue winding the coil, and damage to the core by the fixing ring.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a three-dimensional wound core transformer gear mold limiting device, which includes an axial limiting unit, including an axial limiting fixing plate, a steering connecting plate perpendicularly connected to the axial limiting fixing plate, a top tightening component connected to the steering connecting plate, and a pin bolt for connecting the axial limiting fixing plate and the steering connecting plate.

[0008] The circumferential rotation limiting unit includes a circumferential limiting body, a locking block that dynamically engages with the guide groove of the circumferential limiting body, an adjusting screw that engages with the locking block, a mounting plate that engages with the adjusting screw, a transition rod connected to the circumferential limiting body, a pin for connecting the circumferential limiting body and the transition rod, a fixing plate connected to the transition rod, and an auxiliary fixing plate connected to the fixing plate and the gear mold fixing ring.

[0009] The axial limiting unit is used to limit the gear mold fixing ring axially, and the circumferential rotation limiting unit is used to limit the gear mold fixing ring circumferentially.

[0010] As a preferred embodiment of the three-dimensional wound iron core transformer gear mold limiting device of the present invention, the axial limiting fixing plate includes a first multi-row connecting hole at one end and an iron core claw connecting hole that cooperates with the multi-row connecting hole.

[0011] The steering connection plate includes two sets of connection holes, one end of which is provided with a second row of connection holes and which cooperate with the axial limiting and fixing plate.

[0012] As a preferred embodiment of the three-dimensional wound core transformer gear mold limiting device of the present invention, the clamping component includes two first working surfaces and second working surfaces that are at 90° to each other. Two sets of connecting holes are opened on the first working surface, and threaded holes are provided on the second working surface. The lower edge of the second working surface is set to be arc-shaped.

[0013] The pin bolt includes a positioning part and a fastening part. The positioning part has a small clearance fit with the connecting part, and the fastening part is threaded.

[0014] As a preferred embodiment of the three-dimensional wound core transformer gear mold limiting device of the present invention, the circumferential limiting body includes a guide groove in the middle, a threaded hole at one end of the circumferential limiting body, a first slot at the other end, and a pin hole perpendicular to the first slot. The width of the guide groove is dynamically matched with the outer diameter of the winding machine frame fixing rod. The circumferential limiting body can rotate circumferentially and move axially around the winding machine frame fixing rod.

[0015] As a preferred embodiment of the three-dimensional wound core transformer gear mold limiting device of the present invention, the locking block includes a main body that dynamically engages with the guide groove, one end of the locking block is provided with an arc-shaped engagement end, the radius of the engagement end is consistent with the radius of the fixed rod of the winding machine frame, the other end of the locking block is a plane and has a second slot, and the width of the locking block and the width of the guide groove form a dynamic engagement.

[0016] As a preferred embodiment of the three-dimensional wound core transformer gear mold limiting device of the present invention, the adjusting screw includes a handle at one end and a first step and groove at the other end for installing the mounting plate;

[0017] The mounting plate is designed as a rectangular structure with a mounting hole in the middle. The mounting plate is also designed as a half structure with a mounting hole in the middle having a diameter larger than the diameter of the groove of the adjusting screw but smaller than the diameter of the end of the adjusting screw. The thickness of the mounting plate is less than its depth.

[0018] As a preferred embodiment of the three-dimensional wound core transformer gear mold limiting device of the present invention, the transition rod includes a flat iron shape at one end with a pin hole and a threaded hole at the other end.

[0019] As a preferred embodiment of the three-dimensional wound core transformer gear mold limiting device of the present invention, the pin includes a second step at one end and a shaft retaining ring groove at the other end, wherein the outer diameter of the second step is larger than the outer diameter of the pin hole.

[0020] As a preferred embodiment of the three-dimensional wound core transformer gear mold limiting device of the present invention, the fixing plate includes a flat steel component with a screw rod connected to the transition rod at one end and multiple sets of connecting holes at the other end of the fixing plate.

[0021] As a preferred embodiment of the three-dimensional wound core transformer gear mold limiting device of the present invention, the auxiliary fixing plate is provided with a flat iron-shaped component with a row of holes, one end of which is connected to the gear mold fixing ring and the other end of which is connected to the fixing plate to form a triangular stable structure.

[0022] The beneficial effects of this invention are as follows: The axial limiting unit, with its multi-row connecting hole design and the precise positioning and fastening function of the pin bolts, can adapt to cores of different diameters and phase spacings, improving applicability and connection accuracy. The circumferential rotation limiting unit, through the cooperation of the circumferential limiting body, locking block, and adjusting screw, achieves adaptability to coil windings of different inner diameters and heights. The triangular stable structure formed by the fixing plate and auxiliary fixing plate solves the problem of axial and circumferential fixing failure of the fixing ring during the winding of large-capacity, high-voltage three-dimensional wound core transformers, preventing quality defects such as the inability to continue winding the coil and the fixing ring damaging the core. This significantly improves the efficiency and quality of transformer manufacturing and achieves omnidirectional limiting of the fixing ring of the gear mold in three-dimensional wound core transformers. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a schematic diagram of the overall structure of the gear mold limiting device for a three-dimensional wound iron core transformer.

[0025] Figure 2 This is a right-side view of the overall structure of the gear mold limiting device for a three-dimensional wound iron core transformer.

[0026] Figure 3 This is a schematic diagram of the clamping assembly structure of the gear mold limiting device for a three-dimensional wound iron core transformer.

[0027] Figure 4 This is a schematic diagram of the circumferential limiting body structure of the gear mold limiting device for a three-dimensional wound iron core transformer.

[0028] Figure 5 This is a schematic diagram of the pin bolt structure of the gear mold limiting device for a three-dimensional wound iron core transformer.

[0029] Figure 6 This is a schematic diagram of the installation of the adjusting screw of the gear mold limiting device for a three-dimensional wound iron core transformer. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1

[0034] Reference Figures 1-2This is the first embodiment of the present invention, which provides a three-dimensional winding core transformer gear mold limiting device, including an axial limiting unit 100 and a circumferential rotation limiting unit 200. The axial limiting fixing plate 101 is connected to the core clamp 101a by a pin bolt 104, providing fixed support for the axial limiting of the gear disk. The steering connecting plate 102 is perpendicularly connected to the axial limiting fixing plate 101, realizing a 90° rotation and increasing the adaptability of the device. The tightening assembly 103 is connected to the steering connecting plate 102 and abuts against the gear mold fixing ring 300. The axial limiting tightness of the gear mold can be controlled by adjustment. The circumferential limiting body 201 has a guide groove in the middle, which is dynamically engaged with the winding machine frame fixing rod 201b, allowing it to rotate circumferentially and move axially around the fixing rod. The locking block 202 is dynamically engaged with the guide groove of the circumferential limiting body 201, and locking is achieved by adjusting the screw 203 and the mounting plate 204. The transition rod 205 is connected to the circumferential limiting body 201 via a pin 206, and the other end is connected to the fixing plate 207. The fixing plate 207 is connected to the gear mold fixing ring 300 via bolts. The auxiliary fixing plate 208, the fixing plate 207, and the gear mold fixing ring 300 form a triangular stable structure, thereby achieving reliable limiting of the circumferential rotation of the gear mold fixing ring.

[0035] Specifically, the axial limiting unit 100 includes an axial limiting fixing plate 101, a steering connecting plate 102 perpendicularly connected to the axial limiting fixing plate 101, a clamping assembly 103 connected to the steering connecting plate 102, and a pin bolt 104 for connecting the axial limiting fixing plate 101 and the steering connecting plate 102.

[0036] The circumferential rotation limiting unit 200 includes a circumferential limiting body 201, a locking block 202 that movably engages with the guide groove of the circumferential limiting body 201, an adjusting screw 203 that engages with the locking block 202, a mounting plate 204 that engages with the adjusting screw 203, a transition rod 205 that connects to the circumferential limiting body 201, a pin 206 that connects the circumferential limiting body 201 and the transition rod 205, a fixing plate 207 that connects to the transition rod 205, and an auxiliary fixing plate 208 that connects to the fixing plate 207 and the gear mold fixing ring.

[0037] The axial limiting unit 100 is used to limit the gear mold fixing ring 300 axially, and the circumferential rotation limiting unit 200 is used to limit the gear mold fixing ring 300 circumferentially.

[0038] In summary, this invention, through its axial limiting unit employing a multi-row connecting hole design, combined with the precise positioning and fastening function of pin bolts, can adapt to iron cores of different diameters and phase spacings, improving applicability and connection accuracy. The circumferential rotation limiting unit, through the cooperation of the circumferential limiting body, locking block, and adjusting screw, achieves adaptability to coil windings of different inner diameters and heights. The triangular stable structure formed by the fixing plate and auxiliary fixing plate solves the problem of axial and circumferential fixing failure of the fixing ring during the winding of large-capacity, high-voltage three-dimensional wound iron core transformers, preventing quality defects such as the inability to continue winding the coil and the fixing ring damaging the iron core, significantly improving the efficiency and quality of transformer manufacturing, and achieving omnidirectional limiting of the fixing ring of the gear mold in three-dimensional wound iron core transformers.

[0039] Example 2

[0040] Reference Figures 1-6 This is the second embodiment of the present invention, which provides a three-dimensional winding core transformer gear mold limiting device, including an axial limiting unit 100 and a circumferential rotation limiting unit 200. The axial limiting fixing plate 101 is connected to the core clamp 101a by a pin bolt 104, providing fixed support for the axial limiting of the gear disk. The steering connecting plate 102 is perpendicularly connected to the axial limiting fixing plate 101, realizing a 90° rotation and increasing the adaptability of the device. The tightening assembly 103 is connected to the steering connecting plate 102 and abuts against the gear mold fixing ring 300. The axial limiting tightness of the gear mold can be controlled by adjustment. The circumferential limiting body 201 has a guide groove in the middle, which is dynamically engaged with the winding machine frame fixing rod 201b, allowing it to rotate circumferentially and move axially around the fixing rod. The locking block 202 is dynamically engaged with the guide groove of the circumferential limiting body 201, and locking is achieved by adjusting the screw 203 and the mounting plate 204. The transition rod 205 is connected to the circumferential limiting body 201 via a pin 206, and the other end is connected to the fixing plate 207. The fixing plate 207 is connected to the gear mold fixing ring 300 via bolts. The auxiliary fixing plate 208, the fixing plate 207, and the gear mold fixing ring 300 form a triangular stable structure, thereby achieving reliable limiting of the circumferential rotation of the gear mold fixing ring.

[0041] Specifically, the axial limiting unit 100 includes an axial limiting fixing plate 101, a steering connecting plate 102 perpendicularly connected to the axial limiting fixing plate 101, a clamping assembly 103 connected to the steering connecting plate 102, and a pin bolt 104 for connecting the axial limiting fixing plate 101 and the steering connecting plate 102.

[0042] The circumferential rotation limiting unit 200 includes a circumferential limiting body 201, a locking block 202 that movably engages with the guide groove of the circumferential limiting body 201, an adjusting screw 203 that engages with the locking block 202, a mounting plate 204 that engages with the adjusting screw 203, a transition rod 205 that connects to the circumferential limiting body 201, a pin 206 that connects the circumferential limiting body 201 and the transition rod 205, a fixing plate 207 that connects to the transition rod 205, and an auxiliary fixing plate 208 that connects to the fixing plate 207 and the gear mold fixing ring.

[0043] The axial limiting unit 100 is used to limit the gear mold fixing ring 300 axially, and the circumferential rotation limiting unit 200 is used to limit the gear mold fixing ring 300 circumferentially.

[0044] Furthermore, the axial limiting and fixing plate 101 includes a first multi-row connecting hole at one end and a core clamp 101a connecting hole that mates with the multi-row connecting hole;

[0045] The steering connection plate 102 includes two sets of connection holes, one end of which is provided with a second row of connection holes and which cooperate with the axial limiting and fixing plate 101.

[0046] Furthermore, the clamping assembly 103 includes two first working surfaces 103a and second working surfaces 103b that are at 90° angles to each other. Two sets of connecting holes are provided on the first working surface 103a, and threaded holes are provided on the second working surface 103b. The lower edge of the second working surface 103b is set to be arc-shaped.

[0047] The pin bolt 104 includes a positioning part and a fastening part. The positioning part has a small clearance fit with the connecting part, and the fastening part is threaded.

[0048] Preferably, the pin bolt 104, through the fit between the positioning part and the connecting part with a small clearance, positions the two connecting parts, and the threads of the fastening part fasten the two connecting parts, improving the connection accuracy. One end of the steering connecting plate 102 has a second row of connecting holes. The lateral spacing between each pair of connecting holes on the steering connecting plate 102 matches the two connecting holes at one end of the axial limiting fixing plate 101. The pin bolt 104 connects the steering connecting plate 102 and the axial limiting fixing plate 101 into one unit, achieving a 90° rotation with the axial limiting fixing plate 101. The second row of connecting holes on the steering connecting plate 102 can adjust the core diameter and the spacing between core columns within a certain range. The clamping assembly 103 is a right-angled component consisting of two working surfaces at 90° angles to each other. One working surface has two connecting holes, which are connected to the steering connecting plate 102 by pin bolts 104. The other working surface has threaded holes, which can adjust the axial limit tightness of the gear mold fixing ring by screwing in and out the set bolts. The lower edge of the working surface with threaded holes of the clamping assembly 103 is arc-shaped to better adapt to the outer contour of the core column.

[0049] Furthermore, the circumferential limiting body 201 includes a guide groove 201a in the middle, a threaded hole at one end of the circumferential limiting body 201, a first slot at the other end, and a pin hole perpendicular to the first slot. The width of the guide groove 201a is dynamically matched with the outer diameter of the winding machine frame fixing rod 201b. The circumferential limiting body 201 can rotate circumferentially and move axially around the winding machine frame fixing rod 201b.

[0050] Furthermore, the locking block 202 includes a main body that dynamically engages with the guide groove 201a, one end of the locking block 202 is provided with an arc-shaped engagement end, the radius of which is consistent with the radius of the winding machine frame fixing rod 201b, the other end of the locking block 202 is a plane and has a second slot, and the width of the locking block 202 and the width of the guide groove 201a are dynamically engaged.

[0051] Furthermore, the adjusting screw 203 includes a handle 203a at one end and a first step and groove at the other end for mounting the mounting plate 204;

[0052] The mounting plate 204 is a rectangular structure with a mounting hole in the middle. The mounting plate 204 is a half structure with a mounting hole in the middle with a diameter larger than the diameter of the groove of the adjusting screw 203 and smaller than the diameter of the end of the adjusting screw 203. The thickness of the mounting plate 204 is less than its depth.

[0053] Preferably, after the circumferential limiting body 201 and the transition rod 205 are connected by the pin 206, they are limited by the shaft retaining ring. The auxiliary fixing plate 208 is a flat iron-shaped component with a row of holes. One end is connected to the gear mold fixing ring 300 and the other end is connected to the fixing plate 207, forming a triangular stable support for the gear mold fixing ring 300, thereby limiting the circumferential rotation of the gear mold fixing ring 300.

[0054] Furthermore, the transition rod 205 includes a flat iron shape at one end with a pin hole and a threaded hole at the other end.

[0055] Furthermore, the pin 206 includes a second step at one end and a shaft retaining ring groove at the other end, wherein the outer diameter of the second step is larger than the outer diameter of the pin hole.

[0056] Furthermore, the fixing plate 207 includes a flat steel component with a screw 207a connected to the transition rod 205 at one end and multiple sets of connecting holes at the other end.

[0057] Furthermore, the auxiliary fixing plate 208 is provided with a flat iron-shaped component with a row of holes, one end of which is connected to the gear mold fixing ring 300, and the other end is connected to the fixing plate 207, forming a triangular stable structure.

[0058] It should be noted that the pin bolt 104 achieves positioning of the two connecting parts through a small gap between the positioning part and the connecting part, and achieves fastening of the two connecting parts through the thread of the fastening part, thereby improving the connection accuracy. The multiple rows of connecting holes provided on the axial limiting fixing plate 101 can realize the adjustment of the core diameter and the spacing between the core columns within a certain range. The multiple rows of connecting holes provided on the steering connecting plate 102 can realize the adjustment of the core diameter and the spacing between the core columns within a certain range. The lower edge of the working surface of the tightening assembly 103 with threaded holes is arc-shaped to better adapt to the outer contour of the core column.

[0059] In use, the iron core 105 is reliably held by the iron core support frame and the iron core clamps 101a. The left and right rotating gears 106 of the gear mold, the track ring 107, the fixing ring 300, and the epoxy cylinder (paper cylinder) 108 are all reliably installed and adjusted. First, the axial limiting device is installed. First, based on the position of the gear mold fixing ring 300 relative to the iron core clamps 101a, the connection holes between the axial limiting fixing plate 101 and the iron core clamps 101a are determined and fixed with pin bolts 104. Then, based on the position of the axial limiting fixing plate 101 relative to the gear mold fixing ring 300, the connection holes between the steering connecting plate 102 and the axial limiting fixing plate 101 are determined and fixed with pin bolts 104. Next, the tightening assembly 103 is fixed to the other end of the steering connecting plate 102 with pin bolts 104. Then, based on the position of the threaded hole of the tightening assembly 103 relative to the gear mold fixing ring 300, the threaded holes for the set bolts are determined; generally, two set bolts are installed. The axial limiting unit 100 has two sets of devices used in combination on the outside of the left and right gear mold fixing rings 300 to achieve axial limiting of the left and right gear mold fixing rings 300.

[0060] Confirm that the axial limiting units 100 of the left and right gear mold fixing rings are installed and adjusted. Screw the adjusting screw 203 with the handwheel into the threaded end of the circumferential limiting body 201. Install the locking block 202 into the guide groove in the middle of the circumferential limiting body 201, and align the end of the adjusting screw with the step and groove of the mounting plate 204 with the groove at one end of the locking block. Install the mounting plate 204 into the groove position of the adjusting screw 203, fixing the mounting plate 204 and the locking block 202 together. Insert the flat connecting surface of one end of the transition rod 205 into the connecting groove at one end of the locking block 202, aligning the two connecting holes. Insert the pin 206 into the connecting hole, and install the retaining spring in the retaining spring groove of the pin 206, connecting the transition rod 205 to the circumferential limiting body.

[0061] Assemble the circumferential limiting body 201 together with the locking block 202, adjusting screw 203, and transition rod 205 onto the winding machine frame fixing rod 201b. Adjust the axial position of the circumferential limiting body 201 on the winding machine frame fixing rod 201b so that the circumferential limiting body 201 is basically aligned with the outer side of the gear mold fixing ring 300. Assemble the fixing plate 207 with the transition rod 205 through the connecting thread at one end. Adjust the engagement length of the fixing plate 207 and the transition rod 205 according to the position of the mounting holes on the gear mold fixing ring 300 so that the mounting holes of the fixing plate 207 are aligned with the mounting holes on the gear mold fixing ring 300. Fix the fixing plate 207 and the gear mold fixing ring 300 together with bolts. Based on the mounting holes on the fixed plate 207 and the gear mold fixing ring 300, the mounting holes of the auxiliary fixed plate 208 are determined. The fixed plate 207, the gear mold fixing ring 300, and the auxiliary fixed plate 208 are connected together with bolts to form a triangular stable connection structure, thereby achieving reliable limiting of the circumferential rotation of the gear mold fixing ring 300.

[0062] In summary, this invention, through its axial limiting unit employing a multi-row connecting hole design, combined with the precise positioning and fastening function of pin bolts, can adapt to iron cores of different diameters and phase spacings, improving applicability and connection accuracy. The circumferential rotation limiting unit, through the cooperation of the circumferential limiting body, locking block, and adjusting screw, achieves adaptability to coil windings of different inner diameters and heights. The triangular stable structure formed by the fixing plate and auxiliary fixing plate solves the problem of axial and circumferential fixing failure of the fixing ring during the winding of large-capacity, high-voltage three-dimensional wound iron core transformers, preventing quality defects such as the inability to continue winding the coil and the fixing ring damaging the iron core, significantly improving the efficiency and quality of transformer manufacturing, and achieving omnidirectional limiting of the fixing ring of the gear mold in three-dimensional wound iron core transformers.

[0063] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0064] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0065] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A three-dimensional wound core transformer gear mold limiting device, characterized in that: include, The axial limiting unit (100) includes an axial limiting fixing plate (101), a steering connecting plate (102) perpendicularly connected to the axial limiting fixing plate (101), a clamping assembly (103) connected to the steering connecting plate (102), and a pin bolt (104) for connecting the axial limiting fixing plate (101) and the steering connecting plate (102); The circumferential rotation limiting unit (200) includes a circumferential limiting body (201), a locking block (202) that movably engages with the guide groove of the circumferential limiting body (201), an adjusting screw (203) that engages with the locking block (202), a mounting plate (204) that engages with the adjusting screw (203), a transition rod (205) that connects to the circumferential limiting body (201), a pin (206) for connecting the circumferential limiting body (201) and the transition rod (205), a fixing plate (207) that connects to the transition rod (205), and an auxiliary fixing plate (208) that connects to the fixing plate (207) and the gear mold fixing ring. The axial limiting unit (100) is used to limit the gear mold fixing ring (300) axially, and the circumferential rotation limiting unit (200) is used to limit the gear mold fixing ring (300) circumferentially.

2. The three-dimensional wound core transformer gear mold limiting device as described in claim 1, characterized in that: The axial limiting and fixing plate (101) includes a first multi-row connecting hole at one end and a core clamp (101a) connecting hole that cooperates with the multi-row connecting hole; The steering connecting plate (102) includes two sets of connecting holes, one end of which is provided with a second multi-row connecting hole and cooperates with the axial limiting fixing plate (101).

3. The three-dimensional wound core transformer gear mold limiting device as described in claim 2, characterized in that: The clamping assembly (103) includes two first working surfaces (103a) and second working surfaces (103b) that are at 90° angles to each other. Two sets of connecting holes are provided on the first working surface (103a), and threaded holes are provided on the second working surface (103b). The lower edge of the second working surface (103b) is set to be arc-shaped. The pin bolt (104) includes a positioning part and a fastening part. The positioning part has a small clearance fit with the connector, and the fastening part is threaded.

4. The three-dimensional wound core transformer gear mold limiting device as described in claim 3, characterized in that: The circumferential limiting body (201) includes a guide groove (201a) in the middle, a threaded hole at one end of the circumferential limiting body (201), a first slot at the other end, and a pin hole perpendicular to the first slot. The width of the guide groove (201a) is dynamically matched with the outer diameter of the winding machine frame fixing rod (201b). The circumferential limiting body (201) can rotate circumferentially and move axially around the winding machine frame fixing rod (201b).

5. The three-dimensional wound core transformer gear mold limiting device as described in claim 4, characterized in that: The locking block (202) includes a main body that dynamically engages with the guide groove (201a), one end of the locking block (202) is provided with an arc-shaped engagement end, the radius of the engagement end is the same as the radius of the winding machine frame fixing rod (201b), the other end of the locking block (202) is a plane and is provided with a second slot, and the width of the locking block (202) and the width of the guide groove (201a) are dynamically engaged.

6. The three-dimensional wound core transformer gear mold limiting device as described in claim 5, characterized in that: The adjusting screw (203) includes a handle (203a) at one end and a first step and groove at the other end for mounting the mounting plate (204); The mounting plate (204) is configured as a rectangular structure with a mounting hole in the middle. The mounting plate (204) is configured as a half structure with a mounting hole in the middle having a diameter larger than the groove diameter of the adjusting screw (203) and smaller than the end diameter of the adjusting screw (203). The thickness of the mounting plate (204) is less than its depth.

7. The three-dimensional wound core transformer gear mold limiting device as described in claim 6, characterized in that: The transition rod (205) includes a flat iron shape at one end with a pin hole and a threaded hole at the other end.

8. The three-dimensional wound core transformer gear mold limiting device as described in claim 7, characterized in that: The pin (206) includes a second step at one end and a retaining ring groove for the shaft at the other end, wherein the outer diameter of the second step is larger than the outer diameter of the pin hole.

9. The three-dimensional wound core transformer gear mold limiting device as described in claim 8, characterized in that: The fixing plate (207) includes a screw (207a) with one end connected to the transition rod (205) and a flat steel component with multiple sets of connecting holes at the other end of the fixing plate (207).

10. The three-dimensional wound core transformer gear mold limiting device as described in claim 9, characterized in that: The auxiliary fixing plate (208) is provided with a flat iron-shaped component with a row of holes. One end is connected to the gear mold fixing ring (300), and the other end is connected to the fixing plate (207) to form a triangular stable structure.

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