A fusion armoured conductor coil winding drop die device and method

Abstract

The application provides a fusion armored conductor coil winding drop die device and method. Before the drop die, a single-layer inner limiting module is fixed on the bottom plate through a positioning pin, a push bolt is adjusted to push a circle of top blocks to the required size position of the inner diameter of the conductor coil, and the corresponding outer limiting column is reserved with a similar height; the drop die operation is started, the conductor coil is gradually dropped into the limiting groove between the outer limiting column, the backing plate and the single-layer inner limiting module, and with the drop die height of the conductor coil, the inner limiting module and the outer limiting column are repeatedly installed until the winding is completed; after the drop die is completed, the clamp clamps the conductor coil, the push bolt is loosened and the inner fixing block is pushed to the center direction, the outer limiting is synchronously removed, and finally the conductor coil after winding is lifted away. Through the polygonal structure of the single-layer limiting column and the mutual positioning therebetween, the overall stiffness is increased and the assembly times are reduced, the adjustable precise control of the inner top block drop die size improves the overall assembly precision and efficiency.

Description

Technical Field

[0001] This invention relates to the field of superconducting coil development for nuclear fusion, specifically to a device and method for winding and casting fusion armor conductor coils. Background Technology

[0002] The development of armored superconducting coils involves processes such as coil winding and insulation treatment, superconducting joint manufacturing, and vacuum pressure impregnation. For Nb3Sn armored superconducting coils, the process typically includes coil winding, superconducting joint manufacturing, coil heat treatment, automatic inter-turn insulation wrapping after coil pulling, and vacuum pressure impregnation. After conductor feeding, straightening, ultrasonic cleaning, sandblasting, and cleaning, the conductor undergoes precise tension-free winding under a predetermined winding process. The geometric forming accuracy of the conductor winding and casting is high. Traditionally, independent metal locating posts are manually placed inside the coil. However, this method requires multiple manual operations, leading to lower assembly accuracy. Furthermore, with the winding of small coils with an inner diameter of less than 1 meter, the central space formed by the inner locating posts gradually decreases, making manual operation even more inconvenient. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides a device and method for casting and unwinding fusion armor conductor coils. By utilizing the polygonal structure of a single-layer limiting post and their mutual positioning, the overall rigidity is increased and the number of assembly steps is reduced. The adjustable inner top block precisely controls the casting and unwinding dimensions, thereby improving overall assembly accuracy and efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fusion armored conductor coil winding and unwinding device includes a base plate, an inner limiting module, and an outer limiting post. The inner limiting module includes a limiting and fixing frame, an inner fixing block, an inner top block, a guide rod, and a thrust bolt. The inner circle of the limiting and fixing frame is circular, and the outer circle is polygonal. The inner fixing blocks are evenly distributed along the outer circle of the limiting and fixing frame. The inner top block is connected to the inner fixing block by bolts. The guide rod and the thrust bolt cooperate with the limiting and fixing frame and the inner fixing block, respectively. The single-layer inner limiting module is fixed to the base plate by positioning pins. The outer limiting post is located outside the single-layer inner limiting module and cooperates with the base plate to limit the outer diameter of the conductor coil.

[0006] Furthermore, the outer ring of the limiting and fixing frame is a dodecagon, and the number of sides is adjusted according to the actual size.

[0007] Furthermore, the upper surface of the limiting and fixing frame has four round hole pin holes with chamfered edges arranged symmetrically about the symmetry line AA. Threaded holes and countersunk holes are provided on the line connecting the apex and the center of the circle, and the positions of the threaded holes and countersunk holes at adjacent positions are opposite.

[0008] Furthermore, a positioning pin is provided on each of the left and right sides of the lower end face of the limiting and fixing frame. The two pins are of different lengths, and the positioning pins are concentric with the pin holes on the upper end face. The line connecting the two positioning pins passes through the center of the limiting and fixing frame.

[0009] Furthermore, the outer limiting post consists of multiple layers of outer fixing blocks, multiple outer top blocks, and a fixed base. The fixed base and the outer fixing blocks are positioned and connected in pairs using pins and bolts. The outer top blocks are installed on one side of the square groove of the fixed base and the outer fixing blocks by bolts.

[0010] Furthermore, the device also includes a pad, which is disposed between the outer limiting post and the limiting fixing frame, fixedly connected to the base plate, and located directly below the conductor coil.

[0011] Furthermore, the device also includes a clamp disposed between two pads for hoisting and transporting the conductor coil after the mold is dropped.

[0012] Furthermore, the device also includes a gear module and a drive module. The gear module is located between the base plate and the frame and consists of a large and a small gear meshing together. The large gear is concentric with the base plate and fixedly connected, while the small gear is connected to the drive module, which is fixedly connected to the frame.

[0013] Furthermore, the device also includes a frame located below the gear module, which is supported by welded square or rectangular tubes and has pads or feet at the bottom.

[0014] This invention also provides a winding and unwinding method for the aforementioned fusion armor conductor coil winding and unwinding device, comprising: before unwinding, fixing a single-layer inner limiting module to the base plate by a positioning pin, adjusting the thrust bolt to push the inner top block one turn to the required size position of the conductor coil inner diameter, and maintaining the same height for the corresponding outer limiting post; starting the unwinding operation, the conductor coil gradually falls into the limiting groove between the outer limiting post, the pad, and the single-layer inner limiting module; as the number of unwinding layers of the conductor coil gradually increases, the inner limiting module and the outer limiting post are repeatedly installed until the target number of layers is completed; after unwinding, the clamps tighten the conductor coil, the thrust bolts loosen and push the inner fixing block towards the center, the outer limiting is removed simultaneously, and finally the wound conductor coil is lifted away.

[0015] Beneficial effects:

[0016] This invention achieves increased overall rigidity and reduced assembly times through the polygonal structure of the single-layer limiting pillars and their mutual positioning. At the same time, the adjustable inner top block can precisely control the mold dropping size, thereby improving the overall assembly accuracy and efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the axial side structure of a single-layer inner limiting frame of a fusion armor conductor coil winding and unwinding device according to the present invention.

[0018] Figure 2 Top view of the limiting and fixing frame;

[0019] Figure 3 The front view of the limiting and fixing frame;

[0020] Figure 4 This is a schematic diagram of the upper part of the device that limits the movement of the conductor coil;

[0021] Figure 5 This is a schematic diagram of the axial structure of the external limiting post;

[0022] Figure 6 This is a front view of the overall structure of the device;

[0023] The attached diagram is labeled as follows: 10-Single-layer inner limit module, 11-Limit fixing frame, 111-Positioning pin; 112-Counterhead hole; 113-Threaded hole; 12-Inner fixing block, 13-Inner top block, 14-Guide rod, 15-Thrust bolt, 20-Base plate, 30-Outer limit post, 40-Clamp, 50-Conductor coil, 60-Padded plate, 31-Outer fixing block, 32-Outer top block, 33-Fixed base, 70-Gear module, 80-Frame, 90-Drive module. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0025] like Figure 1As shown, a fusion armored conductor coil winding and unwinding device of the present invention includes a single-layer inner limiting module 10; the single-layer inner limiting module 10 is composed of a limiting and fixing frame 11, an inner fixing block 12, an inner top block 13, a guide rod 14, and a thrust bolt 15; the inner fixing block 12 is evenly distributed along the outer circle of the limiting and fixing frame 11, and its shape is square, with a square positioning groove in the middle for positioning with the inner top block 13; the cross-section of the inner top block 13 is generally inverted T-shaped, and its side away from the limiting and fixing frame 11 is arc-shaped, and it is connected to the inner fixing block 12 by bolts; the guide rod 14 is arranged in groups of 4 along the outer circle of the limiting and fixing frame 11, and is evenly arranged in multiple groups, and is fixedly connected to the inner fixing block 12 by bolts, with the other end inserted into the limiting and fixing frame 11; the thrust bolt 15 is arranged in groups of 2, which passes through the limiting and fixing frame 11 and contacts the inner fixing block 12, and is threadedly engaged with the limiting and fixing frame 11 to push the inner fixing block 12.

[0026] like Figure 2 As shown, the inner circle of the limiting and fixing frame 11 is circular, and the outer circle is a dodecagonal polygon. The number of sides of the outer circle can be increased or decreased according to the actual size. Four round hole pin holes with chamfered edges are symmetrically arranged on the upper surface about the symmetry line AA. Threaded holes 113 and countersunk holes 112 are provided on the line connecting the apex of the limiting and fixing frame 11 and the center of the circle of the limiting and fixing frame 11. The positions of the threaded holes 113 and countersunk holes 112 in adjacent positions are opposite. Four sets are arranged on each side of the symmetry line AA, and the whole is symmetrical about the center.

[0027] like Figure 3 As shown, the limiting and fixing frame 11 has one positioning pin 111 on each of the left and right sides of its lower end face. The two pins are of different lengths to facilitate positioning during hoisting. The positioning pins 111 are concentric with the pin holes on the upper end face of the limiting and fixing frame 11, and the line connecting the two positioning pins 111 passes through the center of the limiting and fixing frame 11. The limiting and fixing frame 11 has guide holes and threaded connection holes on each polygonal face, with the threaded connection holes located between the guide holes.

[0028] like Figure 4As shown, the base plate 20 is circular and serves as the foundation for fixing the limiting and fixing frame 11 and the single-layer inner limiting module 10. The outer limiting post 30 is located outside the single-layer inner limiting module 10 and acts as an outer limit during the winding process. The single-layer inner limiting module 10 is fixed to the upper surface of the base plate 20, concentric with the base plate 20, and arranged in multiple sets upwards. Adjacent single-layer inner limiting modules 10 have a 30° offset angle based on the connection between their countersunk holes 112 and threaded holes 113. The pad 60 is located between the outer limiting post 30 and the limiting and fixing frame 11, fixedly connected to the base plate 20, and located directly below the conductor coil 50. Similar to the outer limiting post, the preferred material is stainless steel or G10. The outer limiting post 30, the pad 60, and the inner limiting module 10 together constitute the limiting space during the winding of the conductor coil 50. The clamp 40 is set between two pads 60 and consists of two upper and lower flat plates and two front and rear C-shaped opening plates, which are fixedly connected by bolts. The thickness of the lower flat plate is less than the thickness of the pad 60, which facilitates the insertion of the conductor coil 50 into the gap between the base plate 20. The clamp 40 is used to facilitate the hoisting and transportation of the conductor coil 50 after the mold is removed.

[0029] like Figure 5 As shown, the outer limiting post consists of multiple layers of outer fixing blocks 31, multiple outer top blocks 32, and a fixed base 33. The height of the outer limiting post is adjusted according to the mold drop depth. The fixed base 33 and the outer fixing blocks 31 are positioned and connected in pairs using pins and bolts. The whole is used to limit the outer diameter of the conductor coil 50. The fixed base 33 is the foundation of the outer limiting post 30. Pins are arranged below it for easy positioning with the base plate 20. The side near the outer top block 32 is provided with a square groove identical to that of the outer fixing block 31. The material is carbon steel. The outer fixing blocks 31 are arranged in multiple layers above the fixed base 33. They are square in shape with a hollow center to reduce weight. The preferred material is carbon steel. The side near the outer top block 32 is provided with a square groove for positioning with the outer top block 32. The outer top block 32 is installed on the fixed base 33 and the side of the outer fixing block 31 with bolts. The side away from the outer fixing block 31 is arc-shaped and has the same size as the outer diameter of the conductor coil 50.

[0030] like Figure 6 As shown, the gear module 70 is located between the base plate 20 and the frame 80, and consists of a large and a small gear meshing together. The large gear is concentric with and fixedly connected to the base plate 20, and the small gear is connected to the drive module 90. Under the drive of the drive module 90, the gear module 70 can drive the base plate 20 to rotate. The drive module 90 is fixedly connected to the frame 80. The frame 80 is located below the gear module 70 and is supported by welded square or rectangular tubes. The bottom is equipped with pads or feet to facilitate the leveling of the base plate 20.

[0031] This invention also provides a method for demolding a fusion armor conductor coil, comprising: before demolding, fixing a single-layer inner limiting module 10 to the base plate 20 by a positioning pin 111, adjusting the thrust bolt 15 to push the inner top block 13 one turn to the required size position of the inner diameter of the conductor coil 50, and maintaining a similar height to the corresponding outer limiting post 30; starting the demolding operation, the conductor coil 50 gradually falls into the limiting groove between the outer limiting post 30, the pad 60 and the single-layer inner limiting module 10, and as the number of demolding layers of the conductor coil 50 gradually increases, repeatedly installing the inner limiting module 10 and the outer limiting post 30 until the target number of layers is completed; after demolding, the clamp 40 clamps the conductor coil 50, the thrust bolt 15 loosens and pushes the inner fixing block 12 towards the center, simultaneously removing the outer limiting post 30, and finally lifting the completed conductor coil 50 away.

Claims

1. A device for casting and unwinding fusion armor conductor coils, characterized in that, The system includes a base plate (20), an inner limiting module (10), and an outer limiting post (30). The inner limiting module (10) includes a limiting fixing frame (11), an inner fixing block (12), an inner top block (13), a guide rod (14), and a thrust bolt (15). The inner circle of the limiting fixing frame (11) is circular, and the outer circle is polygonal. The inner fixing block (12) is evenly distributed along the outer circle of the limiting fixing frame (11). The inner top block (13) is connected to the inner fixing block (12) by bolts. The guide rod (14) and the thrust bolt (15) cooperate with the limiting fixing frame (11) and the inner fixing block (12) respectively. The single-layer inner limiting module (10) is fixed on the base plate (20) by a positioning pin (111). The outer limiting post (30) is located outside the single-layer inner limiting module (10) and cooperates with the base plate (20) to limit the outer diameter of the conductor coil (50).

2. The fusion armor conductor coil winding and unwinding device according to claim 1, characterized in that: The outer ring of the limiting and fixing frame (11) is a dodecagon, and the number of sides is adjusted according to the actual size.

3. The fusion armor conductor coil winding and unwinding device according to claim 1, characterized in that: The upper surface of the limiting and fixing frame (11) has four round hole pin holes with chamfered edges arranged symmetrically about the symmetry line AA. Threaded holes (113) and countersunk holes (112) are provided on the line connecting the apex and the center of the circle. The positions of the threaded holes (113) and countersunk holes (112) in adjacent positions are opposite.

4. The fusion armor conductor coil winding and unwinding device according to claim 1, characterized in that: The lower end face of the limiting and fixing frame (11) is provided with one positioning pin (111) on each side. The two pins are of different lengths, and the positioning pin (111) is concentric with the pin hole on the upper end face. The line connecting the two positioning pins (111) passes through the center of the limiting and fixing frame (11).

5. The fusion armor conductor coil winding and unwinding device according to claim 1, characterized in that: The outer limiting post (30) consists of multiple outer fixing blocks (31), multiple outer top blocks (32) and a fixed base (33). The fixed base (33) and the outer fixing blocks (31) are positioned and connected in pairs using pins and bolts. The outer top blocks (32) are installed on one side of the square groove of the fixed base (33) and the outer fixing blocks (31) by bolts.

6. The fusion armor conductor coil winding and unwinding device according to claim 1, characterized in that: The device also includes a pad (60), which is located between the outer limiting post (30) and the limiting fixing frame (11), is fixedly connected to the base plate (20), and is located directly below the conductor coil (50).

7. The fusion armor conductor coil winding and unwinding device according to claim 1, characterized in that: The device also includes a clamp (40) disposed between two pads (60) for hoisting and transporting the conductor coil (50) after the mold is removed.

8. The fusion armor conductor coil winding and unwinding device according to claim 1, characterized in that: The device also includes a gear module (70) and a drive module (90). The gear module (70) is located between the base plate (20) and the frame (80) and is composed of a large and a small gear meshing together. The large gear is concentric with the base plate (20) and fixedly connected, and the small gear is connected to the drive module (90). The drive module (90) is fixedly connected to the frame (80).

9. The fusion armor conductor coil winding and unwinding device according to claim 1, characterized in that: The device also includes a frame (80) located below the gear module (70), which is supported by welded square or rectangular tubes and has pads or feet at the bottom.

10. The winding and unwinding method of the fusion armor conductor coil winding and unwinding device according to any one of claims 1-9, characterized in that: Before the conductor coil is unwound, a single-layer inner limiting module is fixed to the base plate by a positioning pin. The inner top block is pushed one revolution by the thrust bolt to the required size position of the conductor coil's inner diameter, while the corresponding outer limiting post is kept at the same height. The unwound operation begins, and the conductor coil gradually falls into the limiting groove between the outer limiting post, the pad, and the single-layer inner limiting module. As the number of unwound layers of the conductor coil gradually increases, the inner limiting module and the outer limiting post are repeatedly installed until the target number of layers is completed. After the unwound operation is completed, the clamps tighten the conductor coil, the thrust bolts loosen, and the inner fixing block is pushed towards the center. Simultaneously, the outer limiting post is removed, and finally, the unwound conductor coil is lifted away.

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