Nuclear fusion armored spiral tube superconducting magnet winding and mold falling system and use method

Abstract

The invention discloses a nuclear fusion armored spiral tube superconducting magnet winding and mold falling system and a use method, and relates to the field of research and development of superconducting coils for nuclear fusion. Before mold falling, the armored conductor coil is supported by the supporting seat, the outer limiting column and the inner limiting block. During initial die falling, the coil rotates along with the rotary platform and falls into the groove. Along with increase of the die falling depth, the number of layers of the outer limiting columns is increased, the roller chain drives the supporting seat to descend, the number of the inner limiting blocks is correspondingly increased, and next-step die falling is completed. After die falling is completed, the coil clamp clamps the coil, the roller chain rotates reversely, the supporting seat ascends, and the inner limiting part and the outer limiting part are gradually withdrawn. According to the system, automatic mounting and dismounting of inner limiting are achieved through the chain wheel module, the outer limiting column technology is combined, the die falling size is accurately controlled, and manual operation inconvenience is reduced. Meanwhile, through upward movement of the longitudinal movement mechanism, the capital construction requirement for the pit is reduced, so that the production efficiency is improved, the personnel safety is guaranteed, and the platform building cost and period are reduced.

Description

Technical Field

[0001] The present invention relates to the field of research and development of superconducting coils for nuclear fusion, and specifically relates to a winding and dropping die system and method for a superconducting magnet of an armored solenoid for nuclear fusion. Background Art

[0002] The research and development of superconducting coils requires manufacturing processes such as coil winding and shaping, insulation treatment, superconducting joint manufacturing, and vacuum pressure impregnation; for the research and development of armored superconducting coils made of Nb3Sn material, it usually requires manufacturing processes such as coil winding and shaping, superconducting joint manufacturing, coil heat treatment reaction, coil pulling apart for automatic inter-turn insulation wrapping, and vacuum pressure impregnation. After the conductor goes through conductor feeding, conductor straightening, ultrasonic cleaning, sandblasting and cleaning, it is precisely wound and shaped without tension under the established winding process flow. The traditional method is to manually arrange relatively heavy metal limit posts inside and outside the coil. However, with the winding of some small-sized coils with an inner diameter of less than 1 m, the space for manually arranging the inner metal limit posts will be very limited, which will inevitably lead to a reduction in production efficiency, inconvenience in operation, and at the same time, it will also increase the potential safety impact caused by the possible dropping of the metal limit posts during manual handling.

[0003] The winding of the superconducting coil is gradually accumulated layer by layer. Therefore, the winding platform needs to provide longitudinal motion control. Currently, a lift is arranged below the rotary platform to provide longitudinal motion. However, the combined weight of the coil itself and the rotary platform requires the lift to have a relatively high load-bearing capacity. At the same time, a pit needs to be pre-excavated at the bottom of the rotary platform. The above two points undoubtedly increase the construction cost of the winding platform. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a winding and dropping die system and method for a superconducting magnet of an armored solenoid for nuclear fusion, which can improve production efficiency and increase personnel safety on the premise of accurately controlling the dropping die size of the coil; at the same time, the system has a compact structure, can reduce the requirements for the foundation of the site for the winding platform, and thus reduce the cost and construction period of the winding platform.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A nuclear fusion armored helical superconducting magnet winding die dropping system, comprising a frame, a rotary drive, a gear module, a rotary platform, a sprocket module, a support platform, outer limit posts and a fixing frame; the rotary platform is fixed above the gear module, the gear module is connected to the rotary drive and is driven to rotate by the rotary drive; the frame is located below the gear module; the sprocket module is uniformly fixed on the outer side of the fixing frame along the circumference, the fixing frame is located at the center of the system and is connected to the frame; the outer limit posts are uniformly arranged along the outer circumference of the armored conductor coil and are fixedly connected to the rotary platform; the support platform is located below the armored conductor coil and is fixedly connected to the support base.

[0007] Furthermore, it also includes a coil backing plate, which is located between the armored conductor coil and the support platform.

[0008] Furthermore, it also includes a coil clamp, which is located between the coil backing plates and is used to clamp the coil.

[0009] Furthermore, it also includes a connecting plate, and adjacent two sprocket modules are connected and fixed by the connecting plate.

[0010] Furthermore, the sprocket module includes a support base, a slider, an inner limit block, a driven sprocket, a bottom plate, a driving sprocket, an annular guide rail, a roller chain, a linear guide rail and a sprocket drive. An annular guide rail and a linear guide rail are arranged on the bottom plate; the driven sprocket and the driving sprocket are installed on the right side of the bottom plate, and the roller chain connects the driven sprocket and the driving sprocket; the inner limit blocks are distributed along the annular guide rail, one end of which is fixedly connected to the roller chain by a pin, and the other end is used to limit the inner diameter of the armored conductor coil; the first slider is located below the inner limit block, the right side is fixedly connected to the roller chain, the left end is fixedly connected to the support base, and pulleys are arranged at the bottom, and the pulleys cooperate with the annular guide rail; the support base is fixedly connected to the first slider; the second slider is located on one side of the linear guide rail and is fixedly connected to the support base but not connected to the roller chain; the sprocket drive is composed of a servo motor and a planetary reducer and is installed on one side of the linear guide rail and is used to drive the driving sprocket to rotate.

[0011] Furthermore, the outer limit posts are uniformly arranged along the outer circumference of the armored conductor coil and are composed of multiple layers of hollow blocks connected by bolts or pins, and the number of layers is adjusted according to the die dropping depth to serve as the outer diameter limit of the armored conductor coil.

[0012] Furthermore, the gear module is composed of a large gear and a small gear, which are respectively fixedly connected to the rotary platform and the rotary drive. Driven by the rotary drive, the gear module drives the rotary platform to rotate.

[0013] Furthermore, the fixing frame is arranged at the center position of the entire die dropping system and is a hexagonal structure spliced by profiles, and its height is the same as the height of the bottom plate in the sprocket module, and is used to fix the sprocket module.

[0014] Further, the inner limit block includes a pin hole, a Z-shaped block, a pulley and a limit surface. The Z-shaped block is Z-shaped, with the left side being longer than the right side and the right side being higher than the left side, and the height is determined according to the number of rows of the roller chain; the limit surface is the outer arc surface of the inner limit block, and in the projection direction, the center of the limit surface is above the connection line between the pulleys.

[0015] The present invention also provides a method for using a fall die system for winding a nuclear fusion armored helical tube superconducting magnet, including: before the fall die of the armored conductor coil, the support base is close to the top, 1 to 2 layers of outer limit posts are reserved, and the number of reserved inner limit blocks matches the height of the outer limit posts; during the initial fall die, the armored conductor coil gradually falls into the groove between the outer limit posts, the inner limit blocks and the support platform as the rotary platform rotates; as the fall die depth increases, the number of layers of the outer limit posts is increased, the roller chain is driven to rotate counterclockwise, the support base descends by an appropriate height, and the number of inner limit blocks directly above the support base also increases accordingly, and then the next step of the fall die is carried out; after the fall die is completed, the coil fixture clamps the armored conductor coil, the roller chain is driven to rotate clockwise, as the support base rises, the inner limit blocks directly above the support base will gradually lose the limit on the armored conductor coil, and the outer limit posts are synchronously removed, and finally the inner and outer limits on the armored conductor coil are removed layer by layer.

[0016] Beneficial effects:

[0017] In the present invention, by presetting multiple groups of sprocket modules that can be telescopically extended along the radial direction inside the coil, the sprocket modules can realize the automation of installing and removing the inner limit. Combining with the technical solution of arranging limit posts on the outer circle of the armored conductor coil, precise control of the fall die size of the armored conductor coil is achieved, and the inconvenience of insufficient manual operation space is reduced; at the same time, through the technical solution of the upward movement of the longitudinal movement mechanism, the infrastructure requirements for the pit are reduced; the present invention comprehensively achieves multiple beneficial effects of improving production efficiency, ensuring personnel safety, reducing the platform construction cost and cycle while ensuring the accuracy of the fall die size. Description of the drawings

[0018] A part of the specification drawings of the present invention is used to provide a further understanding of the present invention. The schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0019] Figure 1 It is an axonometric view of a fall die system for winding a nuclear fusion armored helical tube superconducting magnet of the present invention.

[0020] Among them, the reference numerals are: 1-frame, 2-rotary drive, 3-gear module, 4-rotary platform, 5-sprocket module, 6-support platform, 7-outer limit post, 8-armored conductor coil, 9-coil fixture, 10-coil backing plate, 11-connecting plate, 12-fixed frame.

[0021] Figure 2 It is an axonometric view of the sprocket wheel module.

[0022] Among them, the reference numerals are: 51 - support base, 52 - first slider, 53 - inner limit block, 54 - driven sprocket wheel, 55 - bottom plate, 56 - driving sprocket wheel, 57 - annular guide rail, 58 - roller chain, 59 - linear guide rail, 60 - sprocket wheel drive, 61 - second slider.

[0023] Figure 3 It is a schematic structural view of the sprocket wheel module and the outer limit post limiting the armored conductor coil.

[0024] Figure 4 It is a schematic structural view of the inner limit block in the axonometric and projection directions.

[0025] Among them, the reference numerals are: 531 - pin hole, 532 - Z-shaped block, 533 - pulley, 534 - limiting surface. Specific implementation manners

[0026] Those skilled in the art can easily understand that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0027] As Figure 1 shown, a nuclear fusion armored helical tube superconducting magnet winding drop mold system of the present invention includes a frame 1, a rotary drive 2, a gear module 3, a rotary platform 4, a sprocket wheel module 5, a support platform 6, an outer limit post 7, a coil fixture 9, a coil backing plate 10, a connecting plate 11, and a fixing frame 12.

[0028] The rotary platform 4 is fixed above the gear module 3 and is in the shape of a circular plate. The gear module 3 is composed of a large gear fixedly connected to the rotary platform 4 and a small gear meshing with the rotary drive 2. Driven by the rotary drive 2, the gear module 3 can drive the rotation of the rotary platform 4. The frame 1 is located below the gear module 3 and is made of rectangular tubes welded together. Pad irons can be arranged at the bottom to facilitate the horizontal adjustment of the rotary platform 4. The fixing frame 12 is fixedly arranged above the center of the entire die dropping system and is a hexagonal structure spliced by profiles. Its height is basically the same as the height of the bottom plate 55 in the sprocket module 5 and is used to fix the sprocket module 5. The sprocket module 5 is arranged in the middle of the rotary platform 4. A plurality of the sprocket modules 5 are evenly fixed on the outer side of the fixing frame 12 along the circumference, and adjacent two sprocket modules 5 are connected and fixed by a connecting plate 11 to improve the overall rigidity. Six limit columns 7 are evenly arranged along the outer circumference of the armored conductor coil 8 and correspond to the position of the sprocket module 5 and are fixedly connected to the rotary platform 4. It is composed of multiple layers of hollow blocks connected by bolts or pins and serves as the outer diameter limit of the armored conductor coil 8. The number of layers is adjusted according to the depth of die dropping. The coil backing plate 10 is located directly below the armored conductor coil 8 and inside the outer limit column 7 and is fixedly connected to the rotary platform 4. Its material is stainless steel or G10. The coil fixture 9 is located between every two coil backing plates 10. It is composed of an upper and a lower flat plate and a front and a rear C-shaped plate. They are fixedly connected by bolts. The thickness of its lower flat plate is less than the thickness of the coil backing plate 10 to facilitate placing it under the armored conductor coil 8. The coil fixture 9 is used to facilitate the hoisting and transportation of the armored conductor coil 8 after die dropping. The support platform 6 is located above the rotary platform 4 and outside the sprocket module 5 and is used to support the armored conductor coil 8.

[0029] As Figure 2 shown, the sprocket module 5 includes a support seat 51, a first slider 52, an inner limit block 53, a driven sprocket 54, a bottom plate 55, a driving sprocket 56, an annular guide rail 57, a roller chain 58, a linear guide rail 59, a sprocket drive 60 and a second slider 61. The sprocket module 5 can not only drive the up and down movement of the armored conductor coil 8 but also realize the inner diameter limit during die dropping of the armored conductor coil 8 and the space avoidance during hoisting.

[0030] The bottom plate 55 is the foundation of the sprocket module 5. Its cross-sectional shape is T-shaped, and trapezoidal stiffeners are respectively arranged near the upper and lower end faces to enhance the overall rigidity. The driven sprocket 54, the driving sprocket 56, and the roller chain 58 are arranged on the right side of the bottom plate 55. The driven sprocket 54 and the driving sprocket 56 are respectively located on the upper and lower sides of the roller chain 58, and the tooth ratio is 1:1. The number of rows of the three is selected as single row, double row or triple row according to the load condition. The annular guide rail 57 is fixed on the right side of the bottom plate 55, and its length and width are greater than the size of the roller chain. The annular guide rail 57 is used to limit the paths of the inner limit block 53 and the first slider 52. The inner limit blocks 53 are distributed in an array along the annular guide rail 57. The right end of the inner limit block 53 is fixedly connected to the roller chain 58 by a pin. The inner limit block 53 can move along the straight section and the circular section of the annular guide rail 57 under the drive of the roller chain 58. There is a small overlapping part between the left side of the inner limit block 53 and the support seat 51 in the top view projection direction, and its left end face is used to limit the inner diameter of the armored conductor coil 8. The first slider 52 is located below the inner limit block 53. Its right side is fixedly connected to the roller chain 58 and is relatively stationary with the first inner limit block 53. The left end is fixedly connected to the support seat 51. At least 4 pulleys 533 are arranged at the bottom of the first slider 52, and it moves along the straight section of the annular guide rail 57. The support seat 51 and the first slider 52 are fixedly connected to the second slider 61, and the cross-sectional shape is triangular, which is used to provide support for the support platform 6. The linear guide rail 59 is fixed on the back of the annular guide rail 57 on the bottom plate 55, and the projections of the linear guide rail 59 and the annular guide rail 57 on the bottom plate 55 coincide. The linear guide rail 59 is used to limit the second slider 61. The second slider 61 is located on one side of the linear guide rail 59, and its structural shape is similar to that of the first slider 52, but the second slider 61 is not connected to the roller chain 58. The sprocket drive 60 is located on one side of the linear guide rail 59, and it is composed of a servo motor and a planetary reducer, which is used to drive the rotation of the driving sprocket 56.

[0031] As Figure 3 shown, when the roller chain 58 rotates counterclockwise, as the support seat 51 descends, more and more inner limit blocks 53 will be located directly above the support seat 51; conversely, when the roller chain 58 rotates clockwise, as the support seat 51 ascends, fewer and fewer inner limit blocks 53 will be located directly above the support seat 51.

[0032] As Figure 4As shown, the structure of the inner limit block 53 includes a pin hole 531, a Z-shaped block 532, a pulley 533, and a limit surface 534. The structure of the Z-shaped block 532 is Z-shaped, with the left side longer than the right side, the right side higher than the left side, and the height determined by the number of rows of the roller chain 58. The pin hole 531 is located on the right side of the Z-shaped block 532, and its diameter is the same as that of the roller chain 58. Two pulleys 533 are arranged at the middle position of the inner limit block 53, and the pulleys 533 are used in cooperation with the annular guide rail 57. The axes of the two pulleys 533 and the pin hole 531 are coplanar.

[0033] The limit surface 534 is the outer arc surface of the inner limit block 53. In the projection direction, the center of the limit surface 534 is located above the connection line between the pulleys 533 to avoid interference during the rotation of the inner limit block 53 on the annular guide rail 57, so that the limit surface 534 is disengaged from the armored conductor coil 8.

[0034] The present invention also provides a method for using a die dropping system for winding a fusion armored helical tube superconducting magnet, including: before die dropping of the armored conductor coil 8, the support base 51 is close to the top, 1 to 2 layers of the outer limit posts 7 are retained, and the inner limit block 53 retains the corresponding number matching the height of the outer limit posts. During the initial die dropping, the armored conductor coil 8 gradually falls into the groove between the outer limit posts 7, the inner limit block 53, and the support platform 6 as the rotary platform 4 rotates. As the die dropping depth increases, the number of layers of the outer limit posts 7 is increased, the roller chain 58 is driven to rotate counterclockwise, the support base 51 descends to an appropriate height, and the number of inner limit blocks 53 directly above the support base 51 also increases, and then the next step of die dropping is carried out. After die dropping is completed, the coil fixture 9 clamps the armored conductor coil 8, the roller chain 58 is driven to rotate clockwise, and as the support base 51 rises, the inner limit block 53 directly above the support base 51 will gradually lose the limit on the armored conductor coil 8, and the outer limit posts 7 are synchronously removed, and finally the inner and outer limits on the armored conductor coil 8 are removed layer by layer.

[0035] Those skilled in the art can easily understand that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A winding die-dropping system for a nuclear fusion armored solenoid superconducting magnet, characterized in that It includes a frame, a slewing drive, a gear module, a slewing platform, a sprocket module, a support platform, outer limit posts and a fixing frame; the slewing platform is fixed above the gear module, the gear module is connected to the slewing drive and is driven by the slewing drive to rotate; the frame is located below the gear module; the sprocket modules are evenly fixed on the outer side of the fixing frame along the circumference, the fixing frame is located at the center of the system and is connected to the frame; the outer limit posts are evenly arranged along the outer circumference of the armored conductor coil and are fixedly connected to the slewing platform; the support platform is located below the armored conductor coil and is fixedly connected to the support base.

2. A winding die-down system for a fusion armored solenoid superconducting magnet according to claim 1, characterized in that, It further includes a coil backing plate which is located between the armored conductor coil and the support platform.

3. The drop mold system for winding a nuclear fusion armored solenoid superconducting magnet according to claim 1, wherein It further includes a coil clamp which is located between the coil backing plates and is used to clamp the coils.

4. A fall-mold system for winding a fusion armored solenoid superconducting magnet according to claim 1, characterized in that It further includes a connecting plate which is used to connect and fix adjacent sprocket modules.

5. A winding die-down system for a fusion armored solenoid superconducting magnet according to claim 1, characterized in that The sprocket module includes a support base, a slider, an inner limit block, a driven sprocket, a bottom plate, a driving sprocket, an annular guide rail, a roller chain, a linear guide rail and a sprocket drive. An annular guide rail and a linear guide rail are arranged on the bottom plate; the driven sprocket and the driving sprocket are installed on the right side of the bottom plate, and the roller chain connects the driven sprocket and the driving sprocket; the inner limit blocks are distributed along the annular guide rail, one end of which is fixedly connected to the roller chain through a pin, and the other end is used to limit the inner diameter of the armored conductor coil; the first slider is located below the inner limit block, the right side is fixedly connected to the roller chain, the left end is fixedly connected to the support base, and pulleys are arranged at the bottom, and the pulleys cooperate with the annular guide rail; the support base is fixedly connected to the first slider; the second slider is located on one side of the linear guide rail and is fixedly connected to the support base but not connected to the roller chain; the sprocket drive is composed of a servo motor and a planetary reducer and is installed on one side of the linear guide rail and is used to drive the driving sprocket to rotate.

6. The dropping die system for winding a nuclear fusion armored solenoid superconducting magnet according to claim 1, characterized in that, The outer limit posts are evenly arranged along the outer circumference of the armored conductor coil and are composed of multiple layers of hollow blocks connected by bolts or pins, and the number of layers is adjusted according to the die sinking depth to serve as the outer diameter limit of the armored conductor coil.

7. A winding die dropping system for a fusion armored helical tube superconducting magnet according to claim 1, characterized in that, The gear module is composed of a large gear and a small gear, which are respectively fixedly connected to the slewing platform and the slewing drive. Driven by the slewing drive, the gear module drives the slewing platform to rotate.

8. A winding die-down system for a fusion armored helical superconducting magnet according to claim 1, characterized in that, The fixing frame is arranged at the center position of the whole die sinking system and is a hexagonal structure spliced by profiles, and its height is the same as the height of the bottom plate in the sprocket module and is used to fix the sprocket module.

9. A winding die-down system for a fusion armored helical superconducting magnet according to claim 1, characterized in that The inner limit block includes a pin hole, a Z-shaped block, a pulley and a limiting surface. The Z-shaped block is in a Z shape, the left side length is greater than the right side length, the right side height is higher than the left side height, and the height is determined according to the number of rows of the roller chain; the limiting surface is the outer arc surface of the inner limit block, and in the projection direction, the center of the limiting surface is above the connection line between the pulleys.

10. A method for using a die dropping system for winding a nuclear fusion armored helical superconducting magnet according to any one of claims 1-9, characterized in that, It includes: Before the die dropping of the armored conductor coil, the support base is close to the top, 1 - 2 layers of outer limit posts are reserved, and the number of reserved inner limit blocks matches the height of the outer limit posts; during the initial die dropping, the armored conductor coil gradually falls into the groove between the outer limit posts, inner limit blocks and the support platform as the rotary platform rotates; as the die dropping depth increases, the number of layers of the outer limit posts is increased, the driving roller chain rotates counterclockwise, the support base descends by an appropriate height, and the number of inner limit blocks directly above the support base also increases accordingly, and then the next step of die dropping is carried out; after the die dropping is completed, the coil fixture clamps the armored conductor coil, the driving roller chain rotates clockwise, as the support base rises, the inner limit blocks directly above the support base will gradually lose the limit on the armored conductor coil, and the outer limit posts are synchronously removed, and finally the inner and outer limits on the armored conductor coil are removed layer by layer.

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