Winding tool and winding method of central solenoid coil

Abstract

The invention relates to the technical field of fusion reactors, in particular to a center solenoid coil winding tool and method.The winding tool is installed in the inner space of a circumferential field magnet formed by surrounding a plurality of circumferential field coils in the circumferential direction and used for winding a center solenoid coil on the periphery of the center sections of the multiple circumferential field coils; the winding tool comprises a fixed disc, a rotary assembly and an arc-shaped clamp, wherein the fixed disc wraps the periphery of the center section, and the fixed disc, the rotary assembly and the arc-shaped clamp are each of a segmented structure. The driving assembly is mounted on the fixed disc and used for driving the rotary assembly to rotate; the pressing assembly comprises a roller and a roller support, in the coil winding process, the roller presses the wire on the arc-shaped clamp so as to generate a coil arc-shaped spiral section, one end of the roller support is fixedly connected to the fixing disc, and the other end of the roller support is in sliding connection with the arc-shaped clamp. And along with the rotation of the rotary assembly, the winding of the central solenoid coil on the periphery of the central section of the annular field coil is realized.

Description

Technical Field

[0001] The present application relates to the technical field of fusion reactors, and in particular to a winding tool and a winding method for a central solenoid coil. Background Art

[0002] Controlled nuclear fusion energy is an ideal clean energy source in the future. Confined fusion achieves self-sustaining combustion of deuterium and tritium plasma by burning at low density for a long time, and maintains this combustion. There are usually three ways to produce nuclear fusion: gravitational field confinement, inertial confinement and magnetic confinement. There are three main types of magnetic confinement fusion devices: tokamaks, stellarators, and magnetic mirrors. Among them, tokamaks are the easiest to approach fusion conditions and have the fastest development. A magnetic system composed of a variety of magnetic field coils (for example, toroidal field coils, poloidal field coils, central solenoid coils, etc.) is set on the tokamak device to control the plasma and achieve fusion reactions.

[0003] At present, the central solenoid coil is often set at the center of the magnet system, and the toroidal field coil is circumferentially arranged on the periphery of the central solenoid coil, and the poloidal field coil is arranged on the periphery of the toroidal field coil. The central solenoid coil in this magnet system structure is limited by the space limitation of the fusion device, and its diameter size is also limited. Therefore, the magnetic flux at the center of the central solenoid coil is also limited, and the magnetic confinement performance is limited. At the same time, the toroidal field coil and the central solenoid coil in the related art are both made of multiple open-loop coil segments welded together. Not only is the joint welding difficult, but the resistance at the joint is also large, which not only affects the current carrying capacity of the coil, but also has a greater risk of the joint being burned out when a large current is passed. This leads to poor operating performance of the magnet system.

[0004] In order to increase the magnetic flux of the central solenoid coil, the central solenoid coil is wrapped around the periphery of the central segment of the toroidal field coil, so that in a relatively limited space, the relative diameter of the central solenoid coil will be larger, and the magnetic flux in the central solenoid coil will be relatively larger, thereby improving the magnetic confinement capability of the magnet system; at the same time, in order to improve the operating performance of the magnet system of the magnetic confinement fusion device, the central solenoid coil is formed by an integral winding process to reduce the influence of the joints caused by welding.

[0005] However, to realize a structure in which an integrally formed central solenoid coil is wrapped around the periphery of the central section of the integrally formed toroidal field coil, the central solenoid coil needs to be wound on-site in the inner space of the plurality of toroidal field coils after the toroidal field coils are installed.

[0006] Therefore, how to realize on-site winding of the central solenoid coil in the internal space of multiple toroidal field coils becomes a technical problem that needs to be solved urgently. Summary of the invention

[0007] The present application provides a winding tool and a winding method for a central solenoid coil to solve the technical problems mentioned in the above background technology.

[0008] According to a first aspect, the present application provides a winding tool for a central solenoid coil, the winding tool being installed in the internal space of a toroidal field magnet formed by a plurality of toroidal field coils surrounding the circumference, and being used to wind the central solenoid coil around the periphery of the central segment of the plurality of toroidal field coils, the winding tool comprising: a fixed disk wrapped around the periphery of the central segment, a rotating assembly and an arc-shaped clamp, the fixed disk, the rotating assembly and the arc-shaped clamp being all segmented structures; each segmented structure being able to pass through a reserved gap of the toroidal field coil into the internal space and then be spliced ​​and installed; wherein the rotating assembly The component is rotatably mounted on the fixed disk, the arc-shaped clamp is fixedly mounted on the rotary component, and a wire outlet clamping block is detachably mounted on the arc-shaped clamp for fixing the wire outlet of the wire; a driving component is mounted on the fixed disk and is used to drive the rotary component to rotate; a pressing component includes a roller and a roller bracket, the roller is mounted on the roller bracket, and during the coil winding process, the roller presses the wire onto the arc-shaped clamp to generate an arc-shaped spiral segment of the coil, one end of the roller bracket is fixedly connected to the fixed disk, and the other end is slidably connected to the arc-shaped clamp.

[0009] In one embodiment, the slewing assembly includes a segmented slewing gear and a segmented slewing bearing; the segmented slewing bearing is mounted on the fixed plate, and the segmented slewing gear is mounted on the segmented slewing bearing; the driving assembly includes a driving motor and a driving gear, and the driving gear is meshed with the segmented slewing gear to drive the segmented slewing gear to rotate.

[0010] In one embodiment, each segment structure of the segmented rotary gear is positioned by means of positioning pins.

[0011] In one embodiment, the joints of the segmented slewing gear, the joints of the segmented slewing bearing and the joints of the fixed plate are offset from each other.

[0012] In one embodiment, the fixed disk and the segmented structure of the rotary assembly are connected via a step positioning structure.

[0013] In one embodiment, the clamping assembly further includes: a clamping force adjustment member, which is installed on the bracket and is used to adjust the degree of compression of the roller on the wire.

[0014] In one embodiment, a height adjustment component is further provided on the fixed disk, one end of which is connected to the fixed disk, and the other end of which is connected to the magnet box base.

[0015] In one embodiment, the height adjustment assembly includes a plurality of lifting screws, and the lifting screws are evenly arranged around the circumference of the fixed disk.

[0016] According to the second aspect, an embodiment of the present application provides a method for winding a central solenoid coil, comprising: after completing the installation of the toroidal field coil, installing the winding tooling of the above-mentioned central solenoid coil into the internal space of the toroidal field coil, and wrapping it around the periphery of the central segment of the toroidal field coil; fixing the outlet end of the conductor on the arc-shaped clamp, starting the driving component to drive the rotating component to drive the arc-shaped clamp to rotate, pressing the conductive wire onto the arc-shaped clamp through the roller, generating an arc-shaped spiral segment of the coil, and forming a coil on the arc-shaped clamp.

[0017] In one embodiment, during the rotation of the arc-shaped clamp, as the number of turns of the coil increases, the height of the fixed disk is adjusted to follow the change of the winding position.

[0018] This application has at least the following beneficial effects:

[0019] The winding tooling includes a fixed disk, a rotating assembly and an arc-shaped clamp wrapped around the periphery of the central section of the toroidal field coil, wherein the fixed disk, the rotating assembly and the arc-shaped clamp are all segmented structures; each segmented structure can pass through the reserved gap of the toroidal field coil to enter the internal space of the toroidal field coil and then be spliced ​​and installed; wherein the rotating assembly is rotatably installed on the fixed disk, the fixed assembly is installed on the rotating assembly, and the arc-shaped clamp is detachably installed with a wire outlet clamping block for fixing the wire outlet; a driving assembly is installed on the fixed disk and is used to drive the rotating assembly to rotate; a pressing assembly includes a roller and a roller The bracket is provided with a roller mounted on the roller bracket. During the coil winding process, the roller presses the conducting wire onto the arc-shaped fixture to generate an arc-shaped spiral segment of the coil. One end of the roller bracket is fixedly connected to the fixed disk, and the other end is slidably connected to the arc-shaped fixture to achieve that during the process in which the driving component drives the rotating component to rotate, the roller bracket and the fixed disk are stationary relative to the rotating component, and the roller can move relative to the arc-shaped fixture to press the conducting wire around the arc-shaped fixture into an arc-shaped spiral segment of the coil. As the rotating component rotates, the central solenoid coil is wound around the periphery of the central segment of the toroidal field coil.

[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the installation of a winding tool for a central solenoid coil provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of a winding tool for a central solenoid coil provided in an embodiment of the present application;

[0024] Figure 3 Provided in the embodiments of this application Figure 2 A partial enlarged view of part A;

[0025] Figure 4 Provided in the embodiments of this application Figure 2 A partial enlarged view of part B;

[0026] Figure 5 A schematic flow chart of a method for winding a central solenoid coil provided in an embodiment of the present application.

[0027] The diagram is as follows:

[0028] 100, toroidal field coil; 110, central section; 120, outer section; 200, central solenoid coil; 210, conductor; 220, outlet head; 310, fixed disk; 311, first joint; 312, step positioning structure; 320, rotating assembly; 321, segmented rotating gear; 3211, second joint; 322, segmented rotating bearing; 3221, third joint; 330, arc clamp; 331, sliding structure; 340, driving assembly; 341, driving motor; 342, driving gear; 350, clamping assembly; 351, roller; 352, roller bracket; 360, height adjustment assembly. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0030] Referring to the description of the background technology, the magnet system of the magnetic confinement fusion device includes at least a plurality of toroidal field coils and a central solenoid coil, wherein each toroidal field coil can be an integral structure coil, and each toroidal field coil can be formed by winding a whole conductor at one time, thereby reducing or eliminating the conductor joints that make up the toroidal field coils, improving the current-carrying capacity of the coil conductors, and avoiding the risk of the joints being burned out when a large current is passed, thereby greatly improving the safety of the device.

[0031] like Figure 1 As shown, each toroidal field coil 100 includes a central segment 110 and a peripheral segment 120. The central segments 110 of the multiple toroidal field coils 100 are close to each other and arranged in a toroidal circumferential form to form a toroidal field magnet. The central solenoid coil 200 is wrapped around the periphery of the central segments 110 of the multiple toroidal field coils 100. In a relatively limited space, the relative diameter of the central solenoid coil 200 will be larger. When the same current is passed through the central solenoid coil 200 or the same magnetic field strength is applied, the magnetic flux in the central solenoid coil 200 will be larger, thereby improving the magnetic confinement capability of the magnet system. The space inside the magnetic confinement nuclear fusion device can be used more efficiently.

[0032] A whole conductor 210 is used to wind each toroidal field coil 100, and multiple toroidal field coils 100 are installed in a circular arrangement to form a toroidal field magnet composed of multiple toroidal field coils 100. For example, 16, 20 or 24 toroidal field coils 100 are used to form a toroidal field magnet system by arranging the toroidal field coils 100 in a circular arrangement. After the toroidal field coils 100 are installed, the central solenoid coil 200 is wrapped on the outside of the central section 110 of the toroidal field coil 100. The central solenoid coil 200 is also formed by one-time winding using a conductor 210, wherein the central solenoid coil 200 may include at least two turns of multi-layer coils, wherein the diameters of the coils of each layer of each turn are the same, and the radius of the coil increases from the inner turn to the outer turn. Each layer of the coil includes a spiral section and a cross-layer transition section, and there is a cross-column transition section between two adjacent turns of the coil. The helical angles of the coils of the same circle (same radius) are the same, and the helical angles of the coils of adjacent circles can be offset by one positive angle and one negative angle, which basically ensures that the magnetic field generated in the center is along the axis direction of the central solenoid coil 200. The innermost circle and the outermost circle of the central solenoid coil 200 have outlet ends 220 respectively.

[0033] In order to realize the on-site integral winding of the central solenoid coil 200 in the internal space of the toroidal field magnet, an embodiment of the present application provides a winding tool for the central solenoid coil 200, which needs to be installed in the internal space of the toroidal field magnet that has been installed, and then the central solenoid coil 200 is integrally wound around the periphery of the central segment 110 of the toroidal field coil 100 through the winding tool.

[0034] like Figures 1 to 4As shown, the winding tooling includes: a fixed disk 310, a rotating assembly 320 and an arc clamp 330 wrapped around the periphery of the central segment 110 of the toroidal field coil 100, the fixed disk 310, the rotating assembly 320 and the arc clamp 330 are all segmented structures; each segmented structure can pass through the reserved gap of the toroidal field coil 100 to enter the internal space of the toroidal field magnet and then be spliced ​​and installed; wherein the rotating assembly 320 is rotatably installed on the fixed disk 310, the fixed installation is on the rotating assembly 320, the arc clamp 330 has a fixed position for the outlet head 220 of the wire, and a clamping block for the outlet head is provided at the fixed position; a driving assembly 340 is installed on the fixed disk 310, and is used to drive the rotating assembly 320 to rotate; pressing Component 350 includes a roller 351 and a roller bracket 352. The roller 351 is installed on the roller bracket 352. During the coil winding process, the roller 351 presses the wire onto the arc clamp 330 to generate an arc-shaped spiral segment of the coil. One end of the roller bracket 352 is fixedly connected to the fixed disk 310, and the other end is slidably connected to the arc clamp 330, so that when the driving component 340 drives the rotating component 320 to rotate, the roller bracket 352 and the fixed disk 310 are stationary relative to the rotating component 320, and the roller 351 can move relative to the arc furniture to press the wire around the arc clamp 330 into an arc-shaped spiral segment of the coil, and as the rotating component 320 rotates, multiple turns of the coil are wound.

[0035] In this embodiment, the segmented fixed disk 310, the rotating assembly 320 and the arc-shaped clamp 330 are inserted into the internal space of the toroidal field magnet through the gap between the toroidal field coils 100 and are spliced ​​and installed. The outlet end 220 of the conductor 210 is fixed on the arc-shaped clamp 330. The driving assembly 340 is started to drive the rotating assembly 320 to drive the arc-shaped clamp 330 to rotate. The wire is pressed against the arc-shaped clamp 330 by the roller 351 to generate an arc-shaped spiral segment of the coil. As the rotating assembly 320 rotates, the wire forms a spiral multi-turn coil on the arc fixture 330 under the pressure of the roller 351. After the central solenoid coil 200 is wound according to the preset number of turns and the preset number of layers, the winding tooling can be removed and the removed winding tooling structure can be removed from the internal space of the toroidal field magnet through the gap between the toroidal field coils 100, so that the one-piece central solenoid coil 200 is wrapped around the periphery of the central segment 110 of the installed toroidal field coil 100.

[0036] In one embodiment, the segmented structures of the rotating assembly 320 are positioned by positioning pins to prevent misalignment, and a positioning table or positioning pins are used to fix and limit the rotating assembly 320 and the fixed disk 310 to ensure the positioning accuracy between the rotating assembly 320 and the fixed disk 310.

[0037] In one embodiment, the slewing assembly 320 includes a segmented slewing gear 321 and a segmented slewing bearing 322, wherein the segmented slewing bearing 322 is mounted on the fixed disk 310, and the segmented slewing gear 321 is mounted on the segmented slewing bearing 322, and the driving assembly 340 includes a driving motor 341 and a driving gear 342, the driving gear 342 is meshed with the segmented slewing gear 321, and the driving motor 341 drives the driving gear 342 to rotate and then drives the segmented slewing gear 321 to rotate relative to the fixed disk 310. Positioning pins are used to position each segment structure of the segmented slewing gear 321.

[0038] In one embodiment, if Figure 3 As shown, the first joint 311 of the fixed plate 310, the second joint 3211 of the segmented rotary gear 321 and the third joint 3221 of the segmented rotary bearing 322 are staggered with each other, so as to connect and fix the segmented rotary gear 321, the segmented rotary bearing 322 and the fixed plate 310 as a whole to the greatest extent possible, forming a rigid body, and at the same time better ensuring the flatness.

[0039] In one embodiment, in order to improve the stability and flatness of the fixing plate 310, as Figure 3 As shown, the segmented structures of the fixed plate 310 are connected by a step positioning structure 312. In an optional embodiment, the segmented structures of the segmented rotary gear 321 and the segmented rotary bearing 322 may also be connected by a step positioning structure to improve the stability and flatness of the segmented rotary gear 321 and the segmented rotary bearing 322, respectively.

[0040] In one embodiment, the arc-shaped fixture 330 may include a plurality of arc-shaped blocks, and the plurality of arc-shaped blocks are respectively positioned on the segmented rotary gear 321 through positioning pins to form a cylindrical fixture. Figure 4 As shown, a gap is reserved between at least two arc blocks for installing a wire head clamping block. The wire head clamping block is installed in the gap to clamp the wire head on the side wall of an arc block facing the gap to prevent interference with the flatness and concentricity of the coil during the coil winding process.

[0041] In one embodiment, a sliding structure 331 is provided at the top of the arc-shaped clamp 330 for sliding and fixing the other end of the roller bracket 352. For example, the sliding structure 331 can be provided on an arc-shaped guide rail at the top of the arc-shaped clamp 330; or it can be provided on the top of the arc-shaped clamp 330. In this embodiment, in order to clearly describe the positional relationship, the side of the arc-shaped clamp 330 away from the segmented rotary gear 321 is described as the top, and the description of other positional relationships is also applicable in this application.

[0042] As the number of coil layers increases, the distance or clamping force between the roller 351 and the arc clamp 330 needs to be adaptively adjusted so that the clamping force of coils of different turns (different radii) is in a consistent state when they are wound. In addition, for coils of the same turn (same radius) during the winding process, it may be necessary to constantly adjust the clamping force of the roller 351 on the wire. Therefore, in one embodiment, the clamping assembly 350 also includes a clamping force adjustment member 353, which is installed on the bracket to adjust the degree of clamping of the roller 351 on the wire. Among them, the clamping force adjustment member 353 can be a threaded screw, and the roller bracket 352 serves as a support seat for the threaded screw. The roller 351 is installed at the free end of the threaded screw. By rotating the threaded screw, the roller 351 is moved closer to or away from the arc clamp 330 to achieve the purpose of adjusting the clamping force of the roller 351.

[0043] In another embodiment, the pressure regulating member can also be an elastic member, for example, a spring, one end of which is connected to the roller 351, and the other end is connected to the roller bracket 352, so that the spring is in a compressed state, and the elastic force of the elastic member is used to make the roller 351 press the wire onto the arc clamp 330, thereby forming a coil arc segment during the winding process.

[0044] In one embodiment, a height adjustment component is also provided on the fixed disk 310 , one end of which is connected to the fixed disk 310 , and the other end is connected to the base of the magnet box. The height adjustment component includes a plurality of lifting screws, which are evenly arranged around the circumference of the fixed disk 310 .

[0045] Since the center solenoid coil 200 is wound in a spiral shape, during the coil winding process, the height of the winding position will change as the number of coil layers increases. When the height changes to a certain extent, the flexibility of the pay-off end of the wire reaches a certain level. At this time, it is necessary to drive the lifting screw to adjust the height of the fixed disk 310, and the winding position changes at the same time to adapt to the height change during the winding process.

[0046] In one embodiment, the height adjustment device 360 ​​can also be used to adjust the horizontality of the fixing plate 310 during the installation of the fixing plate 310 .

[0047] The present application also provides a method for winding a central solenoid coil. Figure 5 As shown, the method includes:

[0048] S10. After the installation of the toroidal field coil is completed, the winding tooling of the central solenoid coil is installed into the inner space of the toroidal field magnet.

[0049] S20. Fix the outlet end of the conductor on the arc-shaped clamp, start the driving assembly to drive the rotating assembly to drive the arc-shaped clamp to rotate, press the wire onto the arc-shaped clamp through the roller, generate an arc-shaped spiral segment of the coil, and form a coil on the arc-shaped clamp.

[0050] Combine the following Figures 1 to 4 , the installation process of the winding tooling is described with a specific embodiment:

[0051] The winding tooling includes a fixed disk 310, a rotating assembly 320, an arc clamp 330, a driving assembly 340 and a clamping assembly 350, wherein the rotating assembly 320 includes a segmented rotating gear 321 and a segmented rotating bearing 322; the segmented rotating bearing 322 is installed on the fixed disk 310, and the segmented rotating gear 321 is installed on the segmented rotating bearing 322; the driving assembly 340 includes a driving motor 341 and a driving gear 342, and the driving gear 342 is meshed with the segmented rotating gear 321 to drive the segmented rotating gear 321 to rotate. The clamping assembly 350 includes a roller 351 and a roller bracket 352, wherein the roller 351 is mounted on the roller bracket 352. During the coil winding process, the roller 351 presses the wire onto the arc clamp 330 to generate an arc-shaped spiral segment of the coil. One end of the roller bracket 352 is fixedly connected to the fixed disk 310, and the other end is slidably connected to the arc clamp 330.

[0052] The fixed disk 310 is also a segmented structure. During the process of installing the winding tooling in the internal space of the toroidal field magnet, the segmented structures of the fixed disk 310, the segmented rotating gear 321 and the segmented rotating bearing 322 are respectively placed in the internal space of the toroidal field magnet through the gaps between the toroidal field coils 100, and then the segmented structures are spliced ​​and installed, wherein the fixed disk 310, the segmented rotating gear 321 and the segmented rotating bearing 322 are wrapped around the periphery of the central segment 110 of the toroidal field coil 100, and the arc-shaped clamp 330 is installed on the segmented rotating gear 321, and is also wrapped around the periphery of the central segment 110 of the toroidal field coil 100.

[0053] During the installation of the fixed plate 310, the segmented slewing gear 321 and the segmented slewing bearing 322, the joints of the fixed plate 310, the segmented slewing gear 321 and the segmented slewing bearing 322 are staggered to connect and fix the segmented slewing gear 321, the segmented slewing bearing 322 and the fixed plate 310 as a whole to the greatest extent possible, forming a rigid body, while better ensuring the flatness. The segmented structures of the fixed plate 310, the segmented slewing gear 321 and the segmented slewing bearing 322 are connected by a step positioning structure, which can better position and fix them, ensuring the flatness and stability after installation.

[0054] Positioning pins are connected between the segmented structures of the segmented rotary gear 321 to prevent misalignment. The flatness of the segmented rotary gear 321 is ensured by the flatness of the segmented rotary bearing 322, so the machining accuracy of the segmented rotary bearing 322 needs to be ensured.

[0055] The arc fixture 330 is fixed on the segmented rotary gear 321 by a positioning table or a positioning pin to ensure positioning accuracy. The sliding structure 331 on the top of the arc fixture 330, for example, an arc guide rail, can be roughly positioned according to actual conditions, without tightening the bolts, controlling the arc guide rail joint, and rotating it for trial. The bolts can be tightened after there is no obstruction. The installation of other sliding structures 331 is also applicable.

[0056] Combine the following Figures 1 to 4 , the coil winding process is described with a specific embodiment:

[0057] When the central solenoid coil 200 is wound, the innermost coil is wound first, the conductor 210 is bent into a lead 220 by a bending tool, and the lead 220 is fixed to the lead 220 fixing position of the arc-shaped fixture 330 by a lead clamping block, wherein the lead clamping block can be fixed to the side arm of the arc-shaped fixture 330 by bolts. The driving assembly 340 is started, and the segmented rotating gear 321 is driven to rotate the arc-shaped fixture 330 by meshing the driving gear 342 with the segmented rotating gear 321, and the roller 351 of the pressing assembly 350 is used to press the wire onto the arc-shaped fixture 330 to generate an arc-shaped spiral section of the coil. When the cross-layer transition section is reached, the cross-layer transition section is bent by a bending tool to complete the coil winding of the current layer.

[0058] As the number of layers of winding increases, the height of the winding position will change. When the height changes to a certain extent, the flexibility of the wire pay-off end reaches a certain degree. At this time, it is necessary to drive the lifting screw to adjust the height of the fixed disk 310, and the winding position changes at the same time to adapt to the change in height during the winding process. When the preset number of layers is wound, the winding of the innermost coil is completed. After that, the cross-column transition section is pressed on the outside with the corresponding mold to transition to the outer circle, and the corresponding filling block is placed on the inner coil. Continue winding, adjust the clamping force adjustment member 353, adjust the roller 351 to a position suitable for the clamping force of the next coil, and wind the next coil.

[0059] As the number of winding layers increases, the height of the winding position will change, and the lifting screw rod is driven to adjust the height of the fixed plate 310, and the winding position changes at the same time to adapt to the height change during the winding process. Until the winding of the preset number of turns is completed. Optionally, the conductor 210 can be wrapped with a glass ribbon as turn insulation before winding.

[0060] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0061] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0062] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A central solenoid coil winding tool, characterized in that: The winding tool is installed in the inner space of a toroidal field magnet formed by a plurality of toroidal field coils surrounding the circumference, and is used to wind the central solenoid coil around the periphery of the central section of the plurality of toroidal field coils. The winding tool comprises: A fixed disk, a rotating assembly and an arc-shaped clamp wrapped around the periphery of the central section, wherein the fixed disk, the rotating assembly and the arc-shaped clamp are all segmented structures; each segmented structure can pass through the reserved gap of the toroidal field coil into the internal space and then be spliced ​​and installed; wherein the rotating assembly is rotatably installed on the fixed disk, the arc-shaped clamp is fixedly installed on the rotating assembly, and a wire outlet clamping block is detachably installed on the arc-shaped clamp for fixing the wire outlet of the conductor; A driving assembly, mounted on the fixed disk, for driving the rotary assembly to rotate; The clamping assembly includes a roller and a roller bracket, wherein the roller is mounted on the roller bracket. During the coil winding process, the roller presses the wire onto the arc-shaped clamp to generate an arc-shaped spiral segment of the coil. One end of the roller bracket is fixedly connected to the fixed disk, and the other end is slidably connected to the arc-shaped clamp.

2. The central solenoid coil winding tool as claimed in claim 1, characterized in that: The slewing assembly includes a segmented slewing gear and a segmented slewing bearing; The segmented slewing bearing is mounted on the fixed plate, and the segmented slewing gear is mounted on the segmented slewing bearing; The driving assembly includes a driving motor and a driving gear, wherein the driving gear is meshed with the segmented rotary gear to drive the segmented rotary gear to rotate.

3. The central solenoid coil winding tool as claimed in claim 2, characterized in that: Each segment structure of the segmented rotary gear is positioned by means of positioning pins.

4. The winding tool for the central solenoid coil as claimed in claim 2, characterized in that: The joints of the segmented slewing gear, the joints of the segmented slewing bearing and the joints of the fixed plate are staggered with each other.

5. The central solenoid coil winding tool as claimed in claim 1, characterized in that: The segmented structures of the fixed disk are connected via a step positioning structure.

6. The central solenoid coil winding tool as claimed in claim 1, characterized in that: The clamping assembly further comprises: a clamping force adjusting member, which is installed on the bracket and is used to adjust the degree of clamping of the roller on the wire.

7. The central solenoid coil winding tool as claimed in claim 1, characterized in that: The fixing plate is also provided with a height adjustment component, one end of which is connected to the fixing plate, and the other end of which is connected to the base of the magnet box.

8. The central solenoid coil winding tool as claimed in claim 7, characterized in that: The height adjustment assembly includes a plurality of lifting screws, and the lifting screws are evenly arranged around the circumference of the fixed plate.

9. A method for winding a central solenoid coil, characterized in that: include: After the installation of the toroidal field coil is completed, the winding tool of the central solenoid coil according to any one of claims 1 to 8 is installed in the internal space of the toroidal field magnet and wrapped around the periphery of the central section of the toroidal field coil; The conductor outlet end is fixed on the arc-shaped clamp, the driving assembly is started to drive the rotating assembly to drive the arc-shaped clamp to rotate, the wire is pressed against the arc-shaped clamp by the roller, an arc-shaped spiral segment of the coil is generated, and a coil is formed on the arc-shaped clamp.

10. The method for winding a central solenoid coil according to claim 9, characterized in that: During the rotation of the arc-shaped clamp, as the number of turns of the coil increases, the height of the fixed disk is adjusted to follow the change of the winding position.

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