Winding device of saddle type coil

Abstract

The invention discloses a winding device of a saddle type coil, and relates to the technical field of superconducting cable winding. A saddle type coil winding device comprises a winding mechanism, the winding mechanism comprises a saddle type split-half framework, the split-half framework is provided with a plurality of annular winding grooves, the winding grooves can contain at least two layers of multi-turn cables, a cut-off opening is formed in a partition between every two adjacent winding grooves, and the cables are jumped through the cut-off openings; when the cable is wound in the plurality of winding grooves, at least two states are presented. According to the invention, the winding groove is designed to be of a wide groove structure capable of accommodating at least two layers of multi-turn cables, so that the cables can be wound in a larger groove width, and the jumper between two adjacent winding grooves can be realized when the cables are in a first state and a second state in cooperation with the design of the cut-off openings; therefore, more layers and turns of superconducting cables can be accommodated in the winding grooves in order, the magnetic field intensity of the final coil is effectively enhanced, and the magnetic field utilization rate is improved.

Description

Technical Field

[0001] This invention relates to the field of superconducting cable winding technology, and in particular to a winding device for a saddle-shaped coil. Background Technology

[0002] In superconducting technology, superconducting magnets with a current of 9T or higher are classified as high-field superconducting magnets. Most high-field diode magnets, both domestically and internationally, employ cosθ coils or block coils, often wound with Rutherford cable. These cables have high current ratings (tens of thousands of amperes), and block coils are not suitable for layered design, resulting in relatively high costs. In recent years, much research has been conducted on DCT (discrete cosθ) coils, which use small round cables, allowing current control to be below 2000A, and at a lower cost.

[0003] In practical applications, when winding superconducting cables, the conventional discrete cosθ coil (saddle-shaped coil with slots) skeleton design results in low space utilization and low excitation efficiency because the slots occupy the space of the cable distribution. Summary of the Invention

[0004] This invention provides a winding device for a saddle-shaped coil, which can solve the problems of low space utilization and low excitation efficiency of the coil mentioned in the background art.

[0005] A saddle-shaped coil winding device includes: a winding platform support, the winding platform support including a rotating shaft assembly connected to a winding mechanism, the winding mechanism being used to wind a cable to form a superconducting magnet coil; The winding mechanism includes a saddle-shaped split frame with multiple annular winding grooves. The winding grooves are wide groove structures that can accommodate at least two layers of multi-turn cables. A cut-off opening is provided between two adjacent winding grooves, and the cable is jump-wired between two adjacent winding grooves through the cut-off opening. When the cable is wound in the multiple winding slots, it exhibits at least two states; In the first state, the cable is wound inward along the outer edge of the inner sidewall of the winding groove; In the second state, the cable is wound outward along the inner edge of the inner sidewall of the winding groove; Both sides of the split frame are provided with multiple dividing brackets arranged along the X direction. Each dividing bracket includes several push rods that can move and rotate in the YZ plane. Adjusting the position of several push rods is used to fix the cable in the winding groove at multiple points.

[0006] Preferably, the plurality of winding slots are arranged from the inside out, the depth of each winding slot is consistent, and the circumference of the winding slots gradually increases along the arrangement direction.

[0007] Preferably, the split frame has an inlet and an outlet, both of which are connected to the outermost winding groove.

[0008] Preferably, the cut-off point includes a first cut-off point and a second cut-off point, the first cut-off point is a fully open cut-off point, the second cut-off point is a partially open cut-off point, and the height difference between the cut-off depth of the second cut-off point and the groove depth of the winding groove is not greater than one cable outer diameter.

[0009] Preferably, in the first state, the cable is patched through the first cut-off port.

[0010] Preferably, in the second state, the cable is patched through the second cut-off port.

[0011] Preferably, the dividing bracket further includes a first bracket arm and a second bracket arm, which rotate relative to each other to drive the push rod to rotate in the YZ plane.

[0012] Preferably, both the first support arm and the second support arm are provided with sliders that can move along the length direction, and the sliders are engaged with the support shaft.

[0013] Preferably, the push rod is threadedly connected to the support shaft, and the support shaft has shoulders at both ends.

[0014] Preferably, the slider has a locking hole, and the opening of the locking hole is provided with a locking part, and the shoulder engages with the locking part.

[0015] The beneficial effects of this invention are: (1) In this invention, when the cable is wound on the winding mechanism, the winding groove is designed as a wide groove structure that can accommodate at least two layers of multi-turn cable, so that the cable can be wound into multiple layers and each layer can be wound into multiple turns within a larger groove width. Combined with the cut-off design, the cable can realize jumper between two adjacent winding grooves in both the first and second states, so that the winding groove can neatly and orderly accommodate more layers and turns of superconducting cable, effectively strengthening the magnetic field strength of the final coil, improving space utilization, excitation efficiency and magnetic field utilization.

[0016] (2) In this invention, by adjusting the position of the push rod in the dividing bracket, the cable in the winding groove can be fixed at multiple points during the cable winding process, so that the cable can be wound more stably and is less likely to move, and the winding accuracy is also higher, thereby solving the problem of difficult cable winding and poor winding effect in wide slot saddle-shaped coils. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a saddle-shaped coil winding device provided by the present invention; Figure 2 An exploded view of a saddle-shaped coil winding device provided by the present invention; Figure 3 for Figure 2 Schematic diagram of the structure of the winding platform support; Figure 4 for Figure 2 Exploded view of the winding mechanism; Figure 5 for Figure 4 Schematic diagram of the middle and lower layer split-frame structure; Figure 6 for Figure 4 Schematic diagram of the structural fit between the upper and middle layer semi-framework and the transition block; Figure 7 for Figure 6 Schematic diagram of the intermediate junction block; Figure 8 for Figure 2 Schematic diagram of the center-partition bracket; Figure 9 for Figure 8 A schematic diagram of the middle slider; Figure 10 for Figure 8 Schematic diagram of the structural fit between the push rod and the support shaft; Figure 11 This is a partial cross-sectional view of a split skeleton in one embodiment; Figure 12 This is a schematic diagram of the cable winding path in the first state; Figure 13 This is a schematic diagram of the cable winding path in the second state; Figure 14 This is a partial cross-sectional view of the split skeleton after the cable winding is completed.

[0018] Explanation of reference numerals in the attached figures: 1. Winding platform bracket; 11. Connecting plate; 12. Rotary shaft assembly; 121. Bearing; 122. Adapter plate; 2. Winding mechanism; 21. Mounting frame; 22. Split frame; 221. Inlet; 222. Outlet; 223. Winding groove; 224. First cut-off point; 225. Second cut-off point; 23. Adapter block; 231. Lead wire groove; 3. Divider bracket; 31. First bracket arm; 32. Second bracket arm; 33. Sliding hole; 34. Fixing hole; 35. Slider; 351. Positioning hole; 352. Locking hole; 353. Engaging part; 36. Push rod; 361. Threaded part; 37. Support shaft; 371. Shoulder; 4. Mounting plate; 5. Pressure block. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0020] In existing technologies, when winding superconducting cables, the conventional discrete cosθ coil (saddle-shaped coil with slots) skeleton design is used. To match the curve design of the saddle-shaped coil, reduce winding difficulty, and improve winding accuracy, the slots are usually designed to accommodate multiple layers of single-turn cables. Adjacent slots inevitably require partitions to separate them, and numerous partitions occupy more cable distribution space, resulting in low cable space utilization and low excitation efficiency.

[0021] The curved shape of the saddle-shaped coil results in a more complex winding path. Therefore, each segment of the coil requires precise winding, placing higher demands on the precision and flexibility of the winding device. To ensure uniform cable winding, those skilled in the art typically design the slots as single-slots, where the slot width matches the cable's outer diameter, allowing the slot to accommodate multiple single-turn layers of cable. This single-turn cable design leads to a larger number of slots, and consequently, a larger number of partitions between adjacent slots, occupying considerable space. The limited amount of superconducting cable that can be accommodated in the same space results in fewer windings and a lower magnetic field strength in the coil.

[0022] To address these issues, the inventors adopted a wide-slot saddle-shaped coil winding scheme. Unlike conventional discrete cosθ coils, wide-slot saddle-shaped coils do not have tension on the cable during winding and require close-fitting winding against the wall. In practice, ensuring uniform winding is difficult, resulting in challenging and poor winding performance.

[0023] like Figures 1-3 As shown, this invention provides a winding device for a saddle-shaped coil, comprising: a winding platform support 1, the winding platform support 1 including a connecting plate 11, and rotating shaft assemblies 12 connected to the two side plates of the connecting plate 11. The rotating shaft assembly 12 includes a bearing 121, a rotating shaft fixedly mounted on the inner wall of the bearing 121, and the bearing 121 connected to a transfer plate 122 via welded channel steel. The transfer plate 122 and the connecting plate 11 are rotatably connected via the bearing 121. The length of the transfer plate 122 can be changed according to actual needs to adapt to different specifications of magnet coils, thus broadening its applicability.

[0024] The rotating shaft assembly 12 is connected to the winding mechanism 2, which is used to wind cables to form a superconducting magnet coil.

[0025] Specifically, such as Figures 1-2 , Figure 4As shown, the winding mechanism 2 includes a mounting bracket 21, which is fixed to the adapter plate 122 by bolts. The mounting bracket 21 is connected to a saddle-shaped split frame 22, which is a semi-circular arc plate structure. The length of the split frame 22 is adjusted according to the coil winding requirements. When a larger coil needs to be wound, a longer semi-circular arc plate is selected for the split frame 22. Correspondingly, the distance between the two adapter plates 122 is longer, requiring the installation of a shorter adapter plate 122 to adapt to the actual coil winding needs.

[0026] During the winding process of superconducting cables, the cable itself will generate torsional stress (torque) due to the winding action. If the torque cannot be released, it may lead to cable deformation, structural damage, or affect the winding accuracy. A planar electric winding platform (not shown in the figure) can be installed at the bottom of the connecting plate 11 in this application, so that the winding platform support 1 can rotate in the XY plane. When the cable generates torque, the winding platform support 1 rotates, and this rotational motion counteracts the torsional tendency of the cable, thereby releasing the accumulated torque of the cable. The design of the bearing 121 allows the split frame 22 to rotate freely in the horizontal direction. At the same time, the bearing 121 has a locking function. When winding the split coil (the adapter plate 122 only has the split frame 22 at the top) and it is necessary to fix the position of the split frame 22, the bearing 121 can be locked to limit the rotation. When winding the whole coil (the adapter plate 122 has split frames 22 at both the top and bottom, and the top and bottom split frames 22 are symmetrically arranged), the bearing 121 can be unlocked to restore the rotation capability. This design allows for flexible control of the movement state of the split frame 22 according to different winding requirements (whole coil / half), which is a key mechanism to ensure the integrity of the cable structure and the winding accuracy.

[0027] like Figures 4-5 As shown, at least one split-frame 22 is provided; in this embodiment, only one split-frame 22 is provided. The split-frame 22 has multiple annular winding grooves 223, in which the cable is wound. The multiple winding grooves 223 are arranged from the inside out, and the distance between two adjacent winding grooves 223 needs to be matched based on the specific electromagnetic design. The groove depth of each winding groove 223 is consistent, ensuring that the same number of cable layers can be wound in each winding groove 223 to guarantee the integrity of the coil. Furthermore, the circumference of the winding grooves 223 gradually increases along the arrangement direction, allowing multiple winding grooves 223 to be nested together. The split-frame 22 also has an inlet 221 and an outlet 222, both of which are connected to the outermost winding groove 223. The cable enters the winding groove 223 from the inlet 221, is wound in the winding groove 223, and then extends out from the outlet 222.

[0028] Furthermore, such as Figure 14As shown, the winding groove 223 adopts a wide groove structure, meaning the groove width of the winding groove 223 is greater than the outer diameter of the cable, allowing the winding groove 223 to accommodate at least two layers of multi-turn cable. The total number of cable layers is an even number, i.e., two layers, four layers, six layers...2p layers, where p is a natural number greater than or equal to 1, and the number of cable layers is counted from bottom to top. Assuming the outer diameter of the cable is d, the groove depth is not less than 2d. Each layer of cable has at least two turns, meaning the groove bottom width is not less than 2d. Assuming n turns of cable are arranged in one layer, the groove bottom width is nd, where n is a natural number greater than 1, and the groove opening width will be slightly larger than the groove bottom width. This design allows the bottom layer of cable to be tightly arranged after winding. There will be gaps between the cables of other layers. Although the gaps are small, to prevent the coil from loosening during subsequent use, the cable is impregnated after winding. The impregnation method is to fill the gaps between the cables with epoxy resin, thereby fixing the cable and making it a whole.

[0029] The inventors improved the shape of the saddle-shaped coil by widening and deepening the original single-wire slot, thus forming the winding slot 223 in this application. This allows the cable to be wound within a wider slot, accommodating more superconducting cables and effectively strengthening the magnetic field strength of the final coil, thereby improving space utilization, excitation efficiency, and magnetic field utilization.

[0030] In this embodiment, as Figure 14 As shown, the cable is ultimately wound in two layers in each winding groove 223, with 5 turns of cable per layer.

[0031] like Figure 5 As shown, a cut-off opening is provided between two adjacent winding slots 223, and the cable is jumpered between the two adjacent winding slots 223 through the cut-off opening.

[0032] Specifically, the cut-off points include a first cut-off point 224 and a second cut-off point 225. The first cut-off point 224 is a fully open cut-off point, and the second cut-off point 225 is a partially open cut-off point. The height difference between the cut depth of the second cut-off point 225 and the groove depth of the winding groove 223 is no greater than one cable outer diameter (when the cable has a square cross-section, the height difference between the cut depth of the second cut-off point 225 and the groove depth of the winding groove 223 is no greater than the cable height), which facilitates a more even arrangement of the second layer of cable after the jumper. During jumpering, odd-numbered layers of cable are jumpered from the first cut-off point 224 during winding, and even-numbered layers of cable are jumpered from the second cut-off point 225 during winding.

[0033] In this embodiment, the cable exhibits at least two states when wound within multiple winding grooves 223.

[0034] like Figure 12 As shown, in the first state, the cable is wound inward along the outer edge of the inner sidewall of the winding groove 223, and the cable is jumpered through the first cut-off point 224.

[0035] Specifically, after the cable enters the outermost winding groove 223 through the inlet 221, the cable winding begins. During the first layer of winding, the cable winds inward along the outer edge of the inner wall of the outermost winding groove 223 until the bottom of the groove is flattened, at which point the cable is located on the inner edge of the inner wall of the outermost winding groove 223. At this point, the cable jumpers through the first cut-off point 224 to the next winding groove 223, and then continues to wind inward along the outer edge of the inner wall of the winding groove 223 (the next winding), and so on.

[0036] The first layer of cable in the winding groove 223 needs to be wound from the outside in when it is wound into a coil because tension cannot be applied to the cable, and the niobium-tin cable has high elasticity but poor plasticity. This device, in conjunction with the winding path, can assist in the winding process. The inability to apply tension is an inherent problem of the wide groove structure (winding groove 223), and "winding from the outside in" is the optimal choice developed by the inventors under this constraint. Since the width of the winding groove 223 is greater than the outer diameter of a single superconducting cable, if the first layer is wound from the inside out, the cable needs to start from the inner edge of the narrow innermost winding groove 223. When extending outward within the wide groove, there is no fixed structure to provide support, making it more prone to loosening and shifting due to lack of tension, resulting in a disordered arrangement. When winding from the outside in, the cable starts from the outer edge of the inner wall of the winding groove 223 of the outermost ring of the split frame 22. During the winding process, it can be initially positioned by relying on the outer edge of the wide groove. Even if tension cannot be applied, the clamping action of the subsequent dividing bracket 3 can ensure the basic arrangement accuracy of the cable in the groove and reduce winding defects caused by lack of tension.

[0037] Once the cable is wound in the innermost winding groove 223, the cable enters the second state.

[0038] like Figure 13 As shown, in the second state, the cable is wound outward along the inner edge of the inner sidewall of the winding groove 223, and the cable is jumpered through the second cut-off port 225.

[0039] Specifically, after the first layer of cable is wound, the cable is located on the inner edge of the innermost winding groove 223. At this point, the cable directly covers the first layer of cable for the second layer of winding. During the second layer winding, the cable winds outwards along the inner edge of the innermost winding groove 223 until the bottom of the groove (which is the top surface formed by the previous layer of cable) is flattened. The cable then lies on the outer edge of the innermost winding groove 223. At this point, the cable jumpers through the second cut-off point 225 to the next winding groove 223, and then continues winding outwards along the inner edge of the inner wall of the next winding groove 223, and so on.

[0040] When the second layer of cable in the winding groove 223 is wound into a coil, it needs to be wound from the inside out. This is to meet the layout requirement that both the incoming and outgoing wires are wound in the outer winding groove 223, and also to use the first layer of cable as a basic support.

[0041] The magnetic field strength of the coil depends on the coordinated current direction of the multi-layered cables. The first layer of cables, wound from the outside in, and the second layer, wound from the inside out, form a "reverse complementary" winding trajectory. This causes the magnetic fields generated by the currents in the two layers of cables to superimpose and enhance each other in the target area (such as the center of the coil), rather than canceling each other out. This ensures the superposition effect of the magnetic field from the multi-layered winding, ultimately improving the coil's magnetic field strength, excitation efficiency, and magnetic field utilization. This design maximizes the current carrying capacity of the cables, increasing the magnetic field strength per unit volume, which meets the performance requirements of high-field superconducting magnets.

[0042] It should be noted that when winding cables of odd-numbered layers, the cable jumps from the first cut-off point 224, and the cable is in the first state. When winding cables of even-numbered layers, the cable jumps from the second cut-off point 225, and the cable is in the second state. The winding state of the cables of adjacent layers alternates between the first state and the second state based on the change between odd-numbered and even-numbered layers.

[0043] In some embodiments, such as Figures 4-7 As shown, when two unidirectional split-frames 22 are set, the lower split-frame 22 and the upper split-frame 22 are nested together. The cable is first wound around the lower split-frame 22, and then the upper split-frame 22 is nested on top of it. A connector block 23 is fixed to the edge of the upper split-frame 22 with bolts. The connector block 23 has an arc-shaped lead-in groove 231, which is angled. The lower end of the lead-in groove 231 is connected to the outlet 222 of the lower split-frame 22, and the higher end is connected to the inlet 221 of the upper split-frame 22. This allows the cable to jump through the lead-in groove 231 of the connector block 23 to the upper split-frame 22 after the lower split-frame 22 is wound, continuing the winding process. The jumper state of the cable between the lower and upper split-frames 22 can be considered as the third state of cable winding.

[0044] In this invention, the cable is wound in multiple layers in the winding groove 223, and each layer is wound with multiple turns of cable. This means that more superconducting cables can be placed in the same space, increasing the number of windings and enhancing the magnetic field generation capability. By increasing the area of ​​the coil, the strength and uniformity of the magnetic field and the excitation efficiency can be improved, further improving the utilization rate of the magnetic field.

[0045] like Figures 1-2 , Figure 8As shown, the inventors discovered that due to the wide groove design of the winding groove 223, the placement and position of the cable need to be very precise. If the coil is not uniform, it may lead to magnetic field instability and even affect the performance of the superconducting coil. Therefore, in this device, multiple dividing brackets 3 arranged along the X-direction are also provided on both sides of the split frame 22. The dividing brackets 3 include several push rods 36 that can move and rotate in the YZ plane. Adjusting the position of several push rods 36 is used to fix the cable in the winding groove 223 at multiple points. During fixing, the end of the push rod 36 extends into the winding groove 223 of the split frame 22 and applies a normal clamping force to the cable in the winding groove 223 (the direction of the normal clamping force is a straight line perpendicular to the tangent plane of the curved contact point of the split frame 22).

[0046] The dividing bracket 3 is connected to the mounting plate 4, which is bolted to the bottom of the mounting frame 21 to support the dividing bracket 3. The dividing bracket 3 includes a first bracket arm 31 and a second bracket arm 32. The first bracket arm 31 is bolted to the side of the mounting plate 4. The first bracket arm 31 and the second bracket arm 32 rotate relative to each other via bolts and nuts, driving the push rod 36 to rotate in the YZ plane. Both the first bracket arm 31 and the second bracket arm 32 have sliding holes 33 and fixing holes 34 along their length.

[0047] like Figures 8-10 As shown, both the first support arm 31 and the second support arm 32 are provided with sliders 35 that can move along their length, and the sliders 35 are engaged with the support shaft 37. A push rod 36 is threadedly connected to the support shaft 37; by rotating the push rod 36, the relative position between the end of the push rod 36 and the support shaft 37 can be adjusted. Shoulders 371 are provided at both ends of the support shaft 37, and the slider 35 has positioning holes 351 and locking holes 352. Bolts and nuts can be installed between the positioning holes 351 and the sliding holes 33 of the slider 35 to facilitate fixing the slider 35 to the first support arm 31 or the second support arm 32. A locking part 353 is provided at the opening of the locking hole 352, and the shoulder 371 engages with the locking part 353.

[0048] The saddle-shaped split-frame 22 features curves and bends, and when combined with a wide winding slot 223, it enables the winding of multiple turns of cable in a single layer. This makes the winding path more complex, and ensuring uniform cable winding is difficult in practice, resulting in significant winding challenges. While the wide slot 223 allows the coil to accommodate more windings, which helps improve magnetic field uniformity, the wider slot also provides more space for cable placement. This can lead to loosening during winding, causing uneven current density in certain areas and further affecting the magnetic field distribution.

[0049] In this application, when the cable is wound in the winding groove 223, the dividing bracket 3 can be used to fix it while winding, thereby avoiding the loosening of local coils, reducing the non-uniformity of local current density, making the utilization of the magnetic field more efficient, improving the magnetic field strength and utilization rate while ensuring the uniformity of the magnetic field.

[0050] Specifically, during winding, the first support arm 31 and the second support arm 32 are adjusted to a suitable angle. The slider 35 moves along the length of the sliding hole 33. After moving to a suitable position, the slider 35 is fixed to the first support arm 31 or the second support arm 32 through the positioning hole 351. Then, the support shaft 37 is moved until the shoulder 371 moves within the locking hole 352 to below the locking part 353 and engages with it, at which point the support shaft 37 is fixed. The push rod 36 is rotated, and the threaded part 361 of the push rod 36 moves on the support shaft 37 until the end of the push rod 36 abuts against the cable, thereby fixing the cable position in the winding groove 223. Adjusting multiple push rods 36 to fix the cable at multiple points makes the cable winding more stable, less prone to movement, and with higher winding accuracy, solving the problems of difficult and poor winding effect in wide-groove saddle-shaped coils.

[0051] In addition, since the length of the split frame 22 is longer than its width, the winding groove 223 will inevitably have some corners with large curvature. Therefore, fixed points need to be set at the places with large curvature, and the push rod 36 fixes the cable at these fixed points. Other points in the winding groove 223 can be added according to actual needs.

[0052] Because the cable arrangement layers and positions are different, the position of the same push rod 36 needs to be adjusted based on the progress of cable winding. During adjustment, push the support shaft 37 away from the engaging part 353 until the shoulder 371 disengages from the engaging part 353, readjust the position of the slider 35, and then fix the position of the push rod 36 again.

[0053] Understandably, different cable specifications mean that when winding a thicker cable, a fixing sleeve can be installed at the end of push rod 36 (i.e., the part that contacts the cable) to secure the cable. The specifications of the fixing sleeve are selected according to the specifications of the cable.

[0054] like Figure 11As shown, since direct contact between the end of the push rod 36 and the cable poses a risk of cable damage, in some embodiments, a pressure block 5 is embedded in the winding groove 223. The shape of the pressure block 5 is adapted to the number and position of the cable layers. At the point where the cable needs to be fixed, the end of the push rod 36 abuts against the top surface of the pressure block 5, causing the pressure block 5 to press down on the cable, thus achieving cable fixation. As the cable is wound, if the end of the same push rod 36 needs to be repositioned to fit the cable, simply rotate the push rod 36 in the opposite direction to disengage the end of the push rod 36 from the pressure block 5, replace it with a suitable pressure block 5, and then rotate the push rod 36 again until the push rod 36 abuts against the replaced pressure block 5. If the winding groove 223 of the same loop is full of cable, and the cable jumps to the winding groove 223 of another loop without needing to fix the cable in the original winding groove 223, adjust the position of the support shaft 37 so that the shaft shoulder 371 disengages from the engaging part 353. The push rod 36 at this point does not fix the cable at this time. Wait until the cable is wound back into the original winding groove 223, and then fix the cable at this point again.

[0055] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A winding device for a saddle-shaped coil, characterized in that, include: A winding platform support (1) includes a rotating shaft assembly (12) connected to a winding mechanism (2) for winding cables to form a superconducting magnet coil. The winding mechanism (2) includes a saddle-shaped split frame (22), which has multiple annular winding grooves (223). The winding grooves (223) are wide groove structures that can accommodate at least two layers of multi-turn cables. A cut-off opening is provided between two adjacent winding grooves (223), and the cable is jump-wired between two adjacent winding grooves (223) through the cut-off opening. When the cable is wound in the plurality of said winding slots (223), it presents at least two states; In the first state, the cable is wound inward along the outer edge of the inner sidewall of the winding groove (223); In the second state, the cable is wound outward along the inner edge of the inner sidewall of the winding groove (223); Both sides of the split frame (22) are provided with multiple dividing brackets (3) arranged along the X direction. The dividing brackets (3) include several push rods (36) that can move and rotate in the YZ plane. Adjusting the position of several push rods (36) is used to fix the cable in the winding groove (223) at multiple points.

2. The winding device for the saddle-shaped coil as described in claim 1, characterized in that, Multiple winding grooves (223) are arranged from the inside out, and the groove depth of each winding groove (223) is consistent, and the circumference of the winding groove (223) gradually increases along the arrangement direction.

3. The winding device for the saddle-shaped coil as described in claim 2, characterized in that, The split frame (22) has an inlet (221) and an outlet (222), and the inlet (221) and the outlet (222) are connected to the outermost winding groove (223).

4. The winding device for the saddle-shaped coil as described in claim 3, characterized in that, The cut-off point includes a first cut-off point (224) and a second cut-off point (225). The first cut-off point (224) is a fully open cut-off point, and the second cut-off point (225) is a non-fully open cut-off point. The height difference between the cut-off depth of the second cut-off point (225) and the groove depth of the winding groove (223) is not greater than one cable outer diameter.

5. The winding device for the saddle-shaped coil as described in claim 4, characterized in that, In the first state, the cable is patched through the first cut-off port (224).

6. The winding device for the saddle-shaped coil as described in claim 5, characterized in that, In the second state, the cable is patched through the second cut-off port (225).

7. The winding device for the saddle-shaped coil as described in claim 1, characterized in that, The dividing bracket (3) further includes a first bracket arm (31) and a second bracket arm (32), the first bracket arm (31) and the second bracket arm (32) rotating relative to each other to drive the push rod (36) to rotate in the YZ plane.

8. The winding device for the saddle-shaped coil as described in claim 7, characterized in that, Both the first support arm (31) and the second support arm (32) are provided with sliders (35) that can move along the length direction, and the sliders (35) are engaged with the support shaft (37).

9. The winding device for the saddle-shaped coil as described in claim 8, characterized in that, The push rod (36) is threadedly connected to the support shaft (37), and the two ends of the support shaft (37) are provided with shoulders (371).

10. The winding device for the saddle-shaped coil as described in claim 9, characterized in that, The slider (35) has a locking hole (352), and a locking part (353) is provided at the opening of the locking hole (352). The shoulder (371) is engaged with the locking part (353).

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