Oil-immersed transformer winding structure and winding device

Abstract

The invention discloses an oil-immersed transformer winding structure and a winding device, relates to the technical field of oil-immersed transformers, and aims to solve the technical problem that the functionality of a coil assembly of a traditional oil-immersed transformer winding structure is limited. And an upper clamping piece is arranged above the lower clamping piece through an iron core. According to the oil-immersed transformer winding, the insulating layer on the outer side of the coil assembly is subjected to wrinkle treatment, so that the oil-immersed transformer winding effectively adapts to the tension and the drawing force of the bending radian in the winding process when being wound on the iron core to be bent; in this way, the shape of the single coil assembly can be conveniently adjusted so as to adapt to coil assemblies of different structures and shapes. According to the mode, the coil assembly is preprocessed under the adaptation of a certain size specification, then adjustment is carried out according to the coil assembly of the actual specification of the needed oil-immersed transformer winding structure, meanwhile, wrinkle treatment is carried out in cooperation with an insulating layer on the outer side of the coil assembly in the adjustment process, and the situation that the insulating layer is damaged is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil-immersed transformers, in particular to an oil-immersed transformer winding structure and a winding device. BACKGROUND

[0002] Technical limitations of traditional oil-immersed transformer windings: The existing winding adopts a fixed geometric shape design, and the traditional cylindrical winding results in a space waste rate of 30-40%; The International Electrotechnical Commission (IEC) standard shows that the lack of shape adaptability results in about 15% of transformers worldwide requiring customized modification every year; The existing oil-immersed transformer winding structure is prepared through one-to-one standardization or customization, which limits the functionality of the coil set of the existing oil-immersed transformer winding structure, and therefore, how to propose an oil-immersed transformer winding structure and a winding device that can adapt to different geometric shapes and reduce the adverse effects of adaptation and adjustment on the coil set and its insulation layer, in view of this, we propose an oil-immersed transformer winding structure and a winding device. SUMMARY

[0003] The present application aims to provide an oil-immersed transformer winding structure and a winding device to solve the technical problem of functional limitation of the coil set in the traditional oil-immersed transformer winding.

[0004] To solve the above technical problems, the present application provides the following technical scheme: an oil-immersed transformer winding structure, comprising a lower clamp; an upper clamp is arranged above the lower clamp through an iron core; wherein the iron core is a detachable structure, and a plurality of coil sets are arranged on the iron core; the coil set comprises a low-voltage coil set and a high-voltage coil set; wherein the low-voltage coil set and the high-voltage coil set are wrapped with an insulation layer on the outside; wherein the insulation layer is a pleated structure for adapting to the bending deformation.

[0005] The present application pleats the insulation layer on the outside of the coil set, so that the oil-immersed transformer winding can effectively adapt to the tension and stretching force of the bending radius during winding on the iron core; in this way, the single coil set can be easily adjusted in shape to adapt to coil sets of different structures; this method is essentially a pre-treatment of the coil set under certain size specifications, and then adjusting the coil set according to the actual specifications of the oil-immersed transformer winding structure, while the insulation layer on the outside of the coil set is pleated during the adjustment process to reduce the damage to the insulation layer.

[0006] A winding device, a main support base; the main support base is provided with slide rails on both sides; the inner support mechanism is provided in the middle end of the main support base; the driving blocks are respectively arranged on the upper and lower sides of the slide rails; the double-mode driving mechanism is arranged on the driving blocks; wherein the double-mode driving mechanism comprises a connecting group frame; the connecting group frame is arranged on the driving block; the center driving shaft, the deflection driving shaft and the fixed driving shaft are arranged on the connecting group frame.

[0007] Preferably, the center driving shaft input end is provided with a driving motor A through the mounting seat; the deflection driving shaft end is provided with a synchronous wheel A; the connecting group frame is provided with a driving motor B through the mounting seat; the driving motor B output end is provided with a synchronous wheel B; the synchronous wheel B is in transmission connection with the synchronous wheel A through the synchronous belt; the fixed driving shaft is arranged on the connecting group frame through the driving motor C.

[0008] Preferably, the deflection driving shaft side is provided with a turbine worm adjusting assembly, and the turbine worm adjusting assembly output end is provided with an extension shaft; the center driving shaft, the extension shaft and the fixed driving shaft end are provided with an adjustable driving assembly; wherein the adjustable driving assembly end is provided with an operation slot; wherein the internal gap of the operation slot constitutes an operation cavity; wherein the gap between the two operation cavities constitutes a carrying bearing shaft cylinder.

[0009] Preferably, the adjustable driving assembly comprises an operation adjusting motor arranged on the end of the center driving shaft, the extension shaft and the fixed driving shaft respectively; the operation adjusting motor end is provided with an operation rotating seat; the operation rotating seat end is provided with an operation slot; the operation cavity is provided with a hooking protrusion in the shape of a hemisphere on both sides; the operation adjusting motor output end is provided with a gear seat; the gear seat end is provided with a connecting shaft; the connecting shaft is provided with a spiral extrusion groove; the connecting shaft is movably provided with a rotating gear; the rotating gear inner wall is provided with an extrusion protrusion; wherein the gear seat and the rotating gear are elastically connected through a spring.

[0010] Preferably, the carrying bearing shaft cylinder is provided with a connecting tooth meshing with the adjustable driving assembly output end on both sides; and the carrying bearing shaft cylinder end is provided with a hooking groove in sliding fit with the hooking protrusion.

[0011] Preferably, the inner support mechanism is in rotational connection with the main support base, and the several unfolded ends of the inner support mechanism are respectively provided with several elastic supporting legs through springs.

[0012] Preferably, the double-mode driving mechanism is composed of a driving block, a slide rail and a cylinder to form a lifting adjusting mechanism, and the two double-mode driving mechanisms arranged in an up-down manner are relative to each other; the two groups of double-mode driving mechanisms arranged in an up-down manner are relative to each other and move close to each other, and the rotation driving of the driving motor B causes the rotation adjustment of the extension shaft, so that the carrying bearing shaft cylinder is adjusted to a cylindrical state; the two groups of double-mode driving mechanisms arranged in an up-down manner are relative to each other and move away from each other, and the rotation driving of the driving motor B causes the rotation adjustment of the extension shaft, so that the carrying bearing shaft cylinder is adjusted to an elliptical state.

[0013] Compared with the prior art, the beneficial effects of the present application are: 1、The oil-immersed transformer winding is effectively adapted to the bending tension and stretching force in the bending process during winding on the iron core by the wrinkle treatment of the outer insulation layer of the coil group; in this way, the single coil group is convenient for shape adjustment to adapt to coil groups of different structural shapes; this method is essentially to pretreat the coil group under certain size specifications, and then adjust the coil group according to the actual specifications of the oil-immersed transformer winding structure, while the outer insulation layer of the coil group is wrinkle-treated during the adjustment process, so as to reduce the damage to the insulation layer.

[0014] 2、The present application is based on the principle of three-point determination of the center of a circle, and the adjustment of the winding end is realized through the center driving shaft, the deflection driving shaft and the fixed driving shaft, and the basic shape maintaining effect in the actual use process is realized through the multiple groups of double-mode driving mechanisms.

[0015] 3、In the present application, the position of the extension shaft is adjusted by the turbine worm adjusting assembly, which avoids the migration and sliding during the adjustment process, thereby avoiding the adverse motion interference.

[0016] 4、The present application drives the carrying bearing shaft cylinder to rotate by operating the adjusting motor driving gear seat to realize the adaptation of the arc length between the two adjusting driving assemblies, and at the same time, the carrying bearing shaft cylinder is rotated instead of sliding during the winding process, thereby maintaining the stability of the winding.

[0017] 5、The present application realizes the necessary rigid connection between the carrying bearing shaft cylinder and the hooking protrusion and the hooking groove through the sliding cooperation of the hooking protrusion and the hooking groove, thereby avoiding the falling of the carrying bearing shaft cylinder.

[0018] 6、The present application causes the inner wall of the carrying bearing shaft cylinder to approach by the unfolded inner supporting mechanism, and at the same time, the elastic legs pushed out by the spring are used to support the carrying bearing shaft cylinder under the basic shape limitation of the double-mode driving mechanism, thereby maintaining the stability of the winding during the rotation of the carrying bearing shaft cylinder.

[0019] 7、The application can realize the required winding shape through two different ways, and can also realize the adjustment of the cylindrical state coil to the required elliptical state through secondary processing, effectively improving the functionality of the winding device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view structural schematic diagram of the winding structure of the oil-immersed transformer in the application. Figure 2 It is a cross-sectional structural schematic diagram of the coil group insulation layer of the application. Figure 3 It is a three-dimensional structural schematic diagram of the winding device in the application. Figure 4 It is a three-dimensional structural schematic diagram of the inner support mechanism of the application. Figure 5 It is a three-dimensional structural schematic diagram of the inner support mechanism of the application. Figure 4 It is a three-dimensional structural schematic diagram of the inner support mechanism of the application. Figure 6 It is a three-dimensional structural schematic diagram of the double-mode driving mechanism of the application. Figure 7 It is a three-dimensional structural schematic diagram of the double-mode driving mechanism of the application. Figure 8 It is a three-dimensional structural schematic diagram of the inner support mechanism of the application. Figure 7 It is a three-dimensional structural schematic diagram of the inner support mechanism of the application. Figure 9 It is a three-dimensional structural schematic diagram of the inner support mechanism of the application. Figure 10 It is a three-dimensional structural schematic diagram of the inner support mechanism of the application.

[0021] Explanation of reference numerals in the drawings: 101, lower clamp; 102, iron core; 103, upper clamp; 104, coil group; 2, main support seat; 3, sliding rail; 4, inner support mechanism; 5, driving block; 6, double-mode driving mechanism; 13, air cylinder; 7, connection group frame; 8, center driving shaft; 801, driving motor A; 9, deflection driving shaft; 901, driving motor B; 10, fixed driving shaft; 902, worm gear adjusting assembly; 903, extension shaft; 11, adjustable driving assembly; 1101, operation adjusting motor; 1102, operation rotating seat; 1104, gear seat; 1105, connecting shaft; 1106, extrusion groove; 1107, rotating gear; 1108, extrusion protrusion; 12, carrying bearing shaft cylinder; 1201, hooking groove; 401, elastic support leg. DETAILED DESCRIPTION

[0022] As Figures 1-2 The oil-immersed transformer winding structure provided by the application comprises a lower clamp 101, an upper clamp 103 arranged above the lower clamp 101 through an iron core 102, wherein the iron core 102 is a detachable structure, and a plurality of coil groups 104 are arranged on the iron core 102; the coil groups 104 comprise low-voltage coil groups and high-voltage coil groups; an insulation layer is arranged outside the low-voltage coil groups and the high-voltage coil groups; the insulation layer is a pleated structure for adapting to bending deformation. The coil groups 104 outside the insulation layer are pleated, so that the oil-immersed transformer winding can effectively adapt to the tension and stretching force of the bending radius during winding on the iron core 102; in this way, the single coil group 104 is convenient to adjust the shape for adapting to coil groups 104 of different structures; this method is essentially to pretreat the coil groups 104 under certain size specifications, and then adjust the coil groups 104 according to the actual specifications of the oil-immersed transformer winding structure, and the insulation layer outside the coil groups 104 is pleated during the adjustment process, so as to reduce the damage of the insulation layer.

[0023] As Figures 3-9 The winding device comprises a main support seat 2, slide rails 3 arranged on both sides of the main support seat 2, an inner support mechanism 4 arranged in the middle of the main support seat 2, driving blocks 5 arranged on the upper and lower sides of the slide rails 3, a double-mode driving mechanism 6 arranged on the driving blocks 5, wherein the double-mode driving mechanism 6 comprises a connecting group frame 7 arranged on the driving blocks 5, and a center driving shaft 8, a deflection driving shaft 9 and a fixed driving shaft 10 arranged on the connecting group frame 7.

[0024] In the embodiment of the application, a driving motor A 801 is arranged on the input end of the center driving shaft 8 through a mounting seat, a synchronous wheel A is arranged on the end of the deflection driving shaft 9, a driving motor B 901 is arranged on the connecting group frame 7 through a mounting seat, a synchronous wheel B is arranged on the output end of the driving motor B 901, the synchronous wheel B is in transmission connection with the synchronous wheel A through a synchronous belt, and the fixed driving shaft 10 is arranged on the connecting group frame 7 through a driving motor C. Based on the principle of three-point determination of the center of a circle, the center driving shaft 8, the deflection driving shaft 9 and the fixed driving shaft 10 are used to adjust the winding end, and a plurality of double-mode driving mechanisms 6 are used to achieve the basic shape maintaining effect in the actual use process.

[0025] In the embodiment of the present application, the eccentric driving shaft 9 is provided with a worm gear adjusting assembly 902 on the side, and the output end of the worm gear adjusting assembly 902 is provided with an extension shaft 903; the center driving shaft 8, the extension shaft 903 and the fixed driving shaft 10 are provided with an adjustable driving assembly 11 at the end; wherein the adjustable driving assembly 11 is provided with an operation slot at the end; wherein the internal gap of the operation slot constitutes an operation cavity; wherein the gap between the two operation cavities constitutes a carrying bearing shaft cylinder 12. In the present application, the position of the extension shaft 903 is adjusted by the rotation of the worm gear adjusting assembly 902, which avoids the migration and sliding during the adjustment process, thereby avoiding the bad motion interference.

[0026] In the embodiment of the present application, the adjustable driving assembly 11 comprises an operation adjusting motor 1101 arranged on the end of the center driving shaft 8, the extension shaft 903 and the fixed driving shaft 10 respectively; the operation adjusting motor 1101 is provided with an operation rotating seat 1102 at the end; the operation rotating seat 1102 is provided with an operation slot at the end; the two sides of the operation cavity are provided with a semispherical hooking protrusion; the output end of the operation adjusting motor 1101 is provided with a gear seat 1104; the end of the gear seat 1104 is provided with a connecting shaft 1105; the connecting shaft 1105 is provided with a spiral extrusion groove 1106; the connecting shaft 1105 is movably provided with a rotating gear 1107; the inner wall of the rotating gear 1107 is provided with an extrusion protrusion 1108; wherein the gear seat 1104 and the rotating gear 1107 are elastically connected through a spring. In the present application, the operation adjusting motor 1101 drives the gear seat 1104 to drive the carrying bearing shaft cylinder 12 to rotate, so as to adapt the arc length between the two adjustable driving assemblies 11, and at the same time, the carrying bearing shaft cylinder 12 is rotated instead of sliding during the winding process, thereby maintaining the stability of the winding.

[0027] In the embodiment of the present application, the two sides of the carrying bearing shaft cylinder 12 are provided with connecting teeth engaged with the output end of the adjustable driving assembly 11; and the end of the carrying bearing shaft cylinder 12 is provided with a hooking groove 1201 slidably matched with the hooking protrusion. In the present application, the hooking protrusion and the hooking groove 1201 are slidably matched, so as to realize the necessary rigid connection between the carrying bearing shaft cylinder 12 and the hooking groove 1201, thereby avoiding the carrying bearing shaft cylinder 12 from falling off.

[0028] In the embodiment of the present application, the inner supporting mechanism 4 is rotatably connected with the main supporting seat 2, and the plurality of unfolded ends of the inner supporting mechanism 4 are respectively provided with a plurality of elastic supporting legs 401 through springs. In the present application, the unfolded inner supporting mechanism 4 causes the inner wall of the carrying bearing shaft cylinder 12 to be close, and at the same time, the elastic supporting legs 401 are pushed out through the springs to support the carrying bearing shaft cylinder 12 under the shape limitation of the double-mode driving mechanism 6, thereby maintaining the stability of the winding during the rotation of the carrying bearing shaft cylinder 12.

[0029] In the embodiment of the present application, the bimodule driving mechanism 6 constitutes a lifting adjusting mechanism through the driving block 5, the slide rail 3 and the air cylinder 13, and the two bimodule driving mechanisms 6 arranged in an up-down mode are in relative motion; the two groups of bimodule driving mechanisms 6 arranged in an up-down mode are relatively close to each other, and the rotation driving of the driving motor B901 causes the rotation adjustment of the extension shaft 903, so that the carrying bearing shaft cylinder 12 is adjusted to a cylindrical state, the two groups of bimodule driving mechanisms 6 arranged in an up-down mode are relatively far away from each other, and the rotation driving of the driving motor B901 causes the rotation adjustment of the extension shaft 903, so that the carrying bearing shaft cylinder 12 is adjusted to an elliptical state. The present application adjusts the carrying bearing shaft cylinder 12 to a cylindrical state to perform basic or cylindrical winding of the wire harness, and adjusts the carrying bearing shaft cylinder 12 to an elliptical state to perform the required long columnar winding operation of the wire harness. The required winding shape is realized through two different ways, and the cylindrical coil in a general state can be prepared in batches through pretreatment, and then the cylindrical coil in a general state is adjusted to the required elliptical state through secondary processing, thereby effectively improving the functionality of the winding device.

[0030] Working principle: the embodiment provides an oil-immersed transformer winding structure and a winding device, and the use steps are as follows: S100, driving processing: the external air bag rotating mechanism in a tire-like mode is contacted with the carrying bearing shaft cylinder 12; S200, adjusting processing: S201, cylindrical adjusting processing: the two groups of air cylinders 13 drive the bimodule driving mechanism 6 to be relatively close to each other, and at the same time, the driving motor B901 is rotationally driven to make the deflection driving shaft 9 rotate, and the two sides of the adjusting type driving assembly 11 are synchronously adjusted to make the length of the three adjusting type driving assemblies 11 increase, so that the carrying bearing shaft cylinder 12 is adjusted to a cylindrical state as shown in the figure. Figure 9 S202, elliptical adjusting processing: the two groups of air cylinders 13 drive the bimodule driving mechanism 6 to be relatively far away from each other, and the driving motor B901 is rotationally driven to make the deflection driving shaft 9 rotate, and the two sides of the adjusting type driving assembly 11 are synchronously adjusted to make the length of the three adjusting type driving assemblies 11 decrease, so that the carrying bearing shaft cylinder 12 is adjusted to an elliptical state as shown in the figure. Figure 10 S300, winding processing: the carrying bearing shaft cylinder 12 is frictionally rotated through the air bag rotating mechanism, and at the same time, the gear seat 1104 is driven to rotate through the operation of the adjusting motor 1101, so that the carrying bearing shaft cylinder 12 is rotated, and winding work is formed.

[0031] ​​The embodiments of the present application disclose the preferred embodiments, but are not limited to the same. Those skilled in the art can easily understand the spirit of the present application according to the above embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the present application, and are within the protection scope of the present application.

Claims

1. A winding structure for an oil-immersed transformer, characterized in that, It includes a lower clamp (101); an upper clamp (103) is provided above the lower clamp (101) via an iron core (102); wherein the iron core (102) is a detachable structure, and a plurality of coil groups (104) are provided on the iron core (102); the coil group (104) includes a low-voltage wire group and a high-voltage wire group; wherein the low-voltage wire group and the high-voltage wire group are wrapped with an insulating layer on the outside; wherein the insulating layer has a pleated structure to adapt to bending deformation.

2. A winding device, characterized in that, Includes a main support base (2); slide rails (3) are provided on both sides of the main support base (2); an inner support mechanism (4) is provided through the middle of the main support base (2); drive blocks (5) are provided on the upper and lower sides of the slide rails (3); a dual-mode drive mechanism (6) is provided on the drive blocks (5); The dual-mode drive mechanism (6) includes a connecting frame (7); the connecting frame (7) is arranged on the drive block (5); the connecting frame (7) is provided with a central drive shaft (8), a yaw drive shaft (9) and a fixed drive shaft (10).

3. A winding device according to claim 2, characterized in that, The input end of the central drive shaft (8) is equipped with a drive motor A (801) via a mounting base. The yaw drive shaft (9) is provided with a synchronous pulley A at its end; and a drive motor B (901) is provided on the connecting frame (7) via a mounting seat; and a synchronous pulley B is provided at the output end of the drive motor B (901); and the synchronous pulley B is connected to the synchronous pulley A via a synchronous belt. The fixed drive shaft (10) is rotated on the connecting frame (7) by the drive motor C.

4. A winding device according to claim 3, characterized in that, The yaw drive shaft (9) is provided with a worm gear adjustment assembly (902) on its side, and the output end of the worm gear adjustment assembly (902) is provided with an extension shaft (903). The central drive shaft (8), the extension shaft (903) and the fixed drive shaft (10) are provided with adjustable drive components (11); wherein, the adjustable drive components (11) are provided with operating grooves at their ends. Among them, the internal gaps of several operating slots constitute the operating cavity; The gap between the two operating chambers forms a support bearing cylinder (12).

5. A winding device according to claim 4, characterized in that, The adjustable drive assembly (11) includes an operating adjustment motor (1101) respectively arranged on the ends of the central drive shaft (8), the extension shaft (903), and the fixed drive shaft (10); an operating rotating seat (1102) is provided at the end of the operating adjustment motor (1101); an operating groove is provided at the end of the operating rotating seat (1102); hemispherical hook protrusions are provided on both sides of the operating cavity; a gear seat (1104) is provided at the output end of the operating adjustment motor (1101); a connecting shaft (1105) is provided at the end of the gear seat (1104); a spiral extrusion groove (1106) is provided on the connecting shaft (1105); a rotating gear (1107) is movably arranged on the connecting shaft (1105); and an extrusion protrusion (1108) is provided on the inner wall of the rotating gear (1107). The gear seat (1104) and the rotating gear (1107) are elastically connected by a spring.

6. A winding device according to claim 5, characterized in that, The mounting bearing cylinder (12) has connecting teeth on both sides that mesh with the output end of the adjustable drive assembly (11); and the end of the mounting bearing cylinder (12) has a hook groove (1201) that slides with the hook protrusion.

7. A winding device according to claim 6, characterized in that, The inner support mechanism (4) is rotatably connected to the main support base (2), and several unfolded ends of the inner support mechanism (4) are respectively provided with several elastic legs (401) by springs.

8. A winding device according to claim 7, characterized in that, The dual-mode drive mechanism (6) forms a lifting and adjusting mechanism through the drive block (5), slide rail (3) and cylinder (13), and the two dual-mode drive mechanisms (6) arranged vertically are in relative motion. Two sets of vertically arranged dual-mode drive mechanisms (6) move closer to each other, and the drive motor B (901) rotates to drive the extension shaft (903) to rotate and adjust, so that the bearing cylinder (12) is adjusted to a cylindrical state. The two sets of dual-mode drive mechanisms (6) arranged vertically move away from each other, and the drive motor B (901) rotates to drive the extension shaft (903) to rotate and adjust, so that the bearing shaft cylinder (12) is adjusted to an elliptical state.

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