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CN-224217350-U - Large-sized cylindrical coil winding die

CN224217350UCN 224217350 UCN224217350 UCN 224217350UCN-224217350-U

Abstract

The application provides a large cylindrical coil winding die which comprises a base, a bearing assembly, a rotating shaft, a connecting seat, supporting rods and a supporting rod, wherein the bearing assembly is coaxially and fixedly arranged at the axial center of the base, the rotating shaft penetrates through the bearing assembly and forms a rotating support, two ends of the rotating shaft extend to a die working area, the connecting seat is axially and fixedly connected to the rotating shaft, and the supporting rods are circumferentially distributed in an annular array mode and are detachably connected to the outer edge of the connecting seat. According to the application, the rotating shaft and the bearing assembly are arranged on the base, the connecting seat and the supporting rod are arranged on the rotating shaft, so that the inner wall of the transformer coil is supported, and when a die is not used, the rotating shaft is only required to be pulled away from the bearing assembly, so that the disassembly of the connecting seat and the bearing assembly can be realized, the problem that the rigid connecting seat and the supporting rod in the prior art adopt a welding integrated design, so that a special storage space is required to occupy when the transformer coil is stored in a non-working state, special vehicles are required to be equipped for transportation and turnover, and the site maintenance cost of a manufacturing enterprise is increased is solved.

Inventors

  • HA YUE
  • ZHANG XIAO
  • CHEN TAI
  • ZHANG LEI
  • TANG SIJIE
  • LI AIQIANG

Assignees

  • 银川欣安瑞电气有限公司

Dates

Publication Date
20260508
Application Date
20250531

Claims (7)

  1. 1. A large cylindrical coil winding die, comprising: a base (1); the bearing assembly (2) is coaxially and fixedly arranged at the axial center of the base (1); The rotating shaft (3) penetrates through the bearing assembly (2) and forms a rotary support, and two ends of the rotating shaft (3) extend to a die working area; The connecting seat (4) is axially fixedly connected to the rotating shaft (3); The supporting rods (5) are circumferentially distributed in an annular array mode and are detachably connected to the outer edge of the connecting seat (4).
  2. 2. The large cylindrical coil winding die according to claim 1, wherein the free end of the support rod (5) is provided with an adjusting bolt (6), the axis of the adjusting bolt (6) coincides with the axis of the support rod (5), and the fine adjustment of the axial position of the support rod (5) can be realized through rotation adjustment.
  3. 3. A large cylindrical coil winding mould according to claim 1, characterized in that a telescopic mechanism (11) is arranged between the base (1) and the connection base (4).
  4. 4. The large cylindrical coil winding mold according to claim 1, wherein the bearing assembly (2) comprises a bearing (21) sleeved on the rotating shaft (3), a bearing seat (22) for connecting the bearing (21) and the base (1), and cover plates (23) arranged on two side walls of the bearing seat (22).
  5. 5. A large cylindrical coil winding mould according to claim 1, characterized in that the connection seat (4) comprises: a limit part (41) for coating the rotating shaft (3) in an interference fit manner; The connecting part (42) is coaxially and fixedly connected with the limiting part (41) and extends along the radial direction, and the outer edge of the connecting part is provided with bolt mounting holes distributed in an annular array.
  6. 6. The large cylindrical coil winding die according to claim 5, wherein circumferential positioning is achieved between the limiting portion (41) and the rotating shaft (3) through a flat key (31 a), and the flat key (31 a) is embedded in a matching space formed by a key slot (411) formed in the inner wall of the limiting portion (41) and an axial key slot formed in a position corresponding to the rotating shaft (3).
  7. 7. A large cylindrical coil winding mould according to claim 1, characterized in that the support bar (5) is detachably connected to the connection base (4) by: A through bolt hole (43) is formed in the end face of a connecting part (42) of the connecting seat (4); A U-shaped clamping groove (51) is formed in the connecting end part of the supporting rod (5), and the groove width of the U-shaped clamping groove (51) is matched with the thickness of the connecting part (42); The axial locking is realized through a fastening bolt (52) penetrating through the bolt hole (43) and the side wall of the U-shaped clamping groove (51).

Description

Large-sized cylindrical coil winding die Technical Field The utility model relates to the technical field of winding of transformer coils, in particular to a large cylindrical coil winding die. Background The transformer coil winding is a core process for manufacturing the transformer, and has the functions of realizing electric energy and magnetic energy conversion and voltage regulation by precisely arranging wires to form a closed electromagnetic loop, ensuring the insulation strength, heat dissipation efficiency and short circuit resistance of the coil by layering winding, interlayer insulation arrangement and oil duct/air passage design, reducing the risks of partial discharge and temperature rise, adopting a dynamic regulation die and a guide mechanism to control layering precision and diameter consistency of the coil, and improving mechanical stability to meet the requirements of high-complexity scenes such as ultra-high voltage and the like. The winding of the large cylindrical coil is limited by the height of the coil, a horizontal winding method is often adopted, the axial length of the die is not limited by the height during horizontal winding, and the winding machine is suitable for ultra-long or large-diameter coils (such as converter transformer coils) and can synchronously perform multi-axis linkage winding. However, the existing large cylindrical coil winding die cannot be suitable for winding transformer coils with different diameters, meanwhile, the rigid connecting seat and the supporting rod adopt a welding integrated design, so that a special storage space is required to be occupied when the large cylindrical coil winding die is stored in a non-working state, special vehicles are required to be equipped for transportation and turnover, and the site maintenance cost of manufacturing enterprises is obviously increased. Disclosure of utility model The utility model aims to solve the problems that in the prior art, a rigid connecting seat and a supporting rod adopt a welding integrated design, so that a special storage space is required to be occupied when the storage is in a non-working state, special vehicles are required to be equipped for transportation and turnover, and the site maintenance cost of a manufacturing enterprise is obviously increased. In order to achieve the above object, the present application provides a large cylindrical coil winding mold, comprising: A base; The bearing assembly is coaxially and fixedly arranged at the axial center of the base; the rotating shaft penetrates through the bearing assembly and forms a rotary support, and two ends of the rotating shaft extend to a die working area; the connecting seat is axially fixedly connected to the rotating shaft; The support rods are circumferentially distributed in an annular array mode and are detachably connected to the outer edge of the connecting seat. According to the large cylindrical coil winding die, the rotating shaft and the bearing assembly are arranged on the base, the connecting seat and the supporting rod are arranged on the rotating shaft, so that the inner wall of the transformer coil is supported, when the die is not used, the rotating shaft is only required to be pulled away from the bearing assembly, the connecting seat and the bearing assembly can be detached conveniently and rapidly, the problem that the rigid connecting seat and the supporting rod in the prior art are integrally welded, so that a special storage space is required to be occupied when the rigid connecting seat and the supporting rod are stored in a non-working state, special vehicles are required to be equipped for transportation turnover, and the site maintenance cost of a manufacturing enterprise is remarkably increased is solved. Further, in order to achieve fine adjustment of the die, the free end of the supporting rod is provided with an adjusting bolt, the axis of the adjusting bolt coincides with the axis of the supporting rod, and fine adjustment of the axial position of the supporting rod can be achieved through rotation adjustment. Further, in order to realize the rising of base in order to adapt to the coil of different diameters, be provided with telescopic machanism between base and the connecting seat. Further, in order to realize the rotation of the rotating shaft, the bearing assembly comprises a bearing sleeved on the rotating shaft, a bearing seat for connecting the bearing and the base, and cover plates arranged on two side walls of the bearing seat. Further, in order to increase the stability of installation of the connecting seat and realize the installation and fixation of the supporting rod, the connecting seat comprises a limiting part and a connecting part, wherein the limiting part is used for coating the rotating shaft in an interference fit mode, the connecting part is fixedly connected with the limiting part in a coaxial way and extends along the radial direction, and the outer edge of the connecting