JP4070360B2 - Superconducting coil manufacturing method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a method and an apparatus for manufacturing a superconducting coil in which a superconducting wire is fixed with a fixing material such as a resin to improve heat transfer characteristics and superconducting stability.
[0002]
[Prior art]
  In general, a superconducting coil is often manufactured by fixing a superconducting wire with a fixing material in order to enhance superconducting stability. As the fixing material, a resin such as an epoxy resin is often used.
[0003]
  As a method of manufacturing a superconducting coil by solidifying a superconducting wire with a fixing material such as a resin in this manner, a superconducting wire having a predetermined number of turns is wound in a predetermined shape in advance, and then the fixing material is vacuum-applied to the superconducting wire. There are a method of pressure impregnation and a method of applying a fixing material to the coil when the superconducting wire is wound. Here, since the thermal contraction rate differs between the superconducting wire and the fixing material, the thermal contraction rate of the superconducting wire is adjusted so that internal stress does not occur in the fixing material due to the difference in thermal contraction rate at low temperatures. In order to approach the rate, particulate or fibrous sections are mixed (complex) in the fixing material.
[0004]
  However, since the fixing material mixed with particles or the like has a high viscosity, when the coil is thick and large, the above-described method using the vacuum pressure impregnation causes the fixing material to be distant from the coil surface. It may not get enough. When the superconducting wire is hardened with a fixing material mixed with particles or the like in this way, a method of winding while applying the fixing material is suitable.
[0005]
  As a method of winding while applying the fixing material, as disclosed in JP-A-49-107493, the winding portion is immersed in the fixing material and wound, or the winding material is fixed to the winding portion. And a method of winding while applying a fixing material to a superconducting wire as disclosed in Japanese Patent No. 2661902.
[0006]
[Problems to be solved by the invention]
  By the way, the viscosity of the fixing material in which particles are mixed to reduce the thermal shrinkage difference from the superconducting wire is high. Therefore, as disclosed in Japanese Patent Application Laid-Open No. 49-107493, when the winding part is rotated by immersing the winding part in the fixing material, the winding part is rotated by the viscosity of the fixing material. Even if it cannot be performed or the winding portion can be rotated, there is a problem that a gap is formed in the fixing material due to high viscosity or the fixing material cannot be impregnated.
[0007]
  Further, even when the fixing material is caused to flow through the winding portion as disclosed in Japanese Patent Application Laid-Open No. 49-107493, the winding portion cannot be uniformly impregnated with the fixing material, or the flow rate of the fixing material is reduced. There are issues that are slow and impractical.
[0008]
  Further, as disclosed in Japanese Patent No. 2661902, the method of winding while applying a fixing material to a superconducting wire has a problem that only a fixed amount of fixing material can be applied to the superconducting wire.
[0009]
  By the way, in the winding of the superconducting wire, as shown in FIGS. 6 (A) and 6 (B), the winding in which the superconducting wire 1 having a round cross section is stacked is formed on the side surface of the winding frame 2 in FIG. 6 (A). 6B, there is always a rising portion gap 3b to the next layer and a transition portion gap 3c to the next turn, and a cross section as shown in FIG. 6C. Even when a rectangular superconducting wire is used, a rising portion gap 3b or the like exists in the next layer. When such a reel side surface gap 3a, a rising portion gap 3b, and a transition portion gap 3c exist, the space factor of the superconducting wire 1 with respect to the space changes locally.
[0010]
  For this reason, since the amount of the fixing material that must be filled between the superconducting wires 1 to be wound also changes, when a fixed amount of the fixing material is supplied, a portion that is not filled with the fixing material occurs, It ’s too much.
[0011]
  In addition, it is difficult to predict the positions where these voids are formed, and it is extremely difficult to change the amount of the fixing material applied to the superconducting wire 1 to avoid the remaining amount of the fixing material and insufficient filling. And when voids are formed in the fixing material, heat transfer characteristics deteriorate in that part, and problems such as cracking due to stress concentration occur, and conversely, the amount of fixing material remains In some cases, it may be difficult to wind the superconducting wire 1 as designed.
[0012]
  Accordingly, the present invention has been made in consideration of the above-described circumstances, and a superconducting coil is formed by winding a suitable amount of a high-viscosity fixing material mixed with particles and having a thermal contraction rate close to that of the superconducting wire while being applied to the superconducting wire. For manufacturing superconducting coilAnd its manufacturing equipmentThe purpose is to provide.
[0013]
[Means for Solving the Problems]
  In order to solve the above-mentioned problems,A method of manufacturing a superconducting coil according to claim 1On the coil windingSuperconducting wireIn a method of manufacturing a superconducting coil, which is manufactured by fixing a coil with a fixing material, the coil winding portionThe fixing material is supplied to the coil winding portion by applying the fixing material to the coil winding portion, and the superconducting coil is turned in the turn direction and layer as the superconducting wire advances to the coil winding portion. Monitor in the monitoring means for the protruding and unpainted portion of the fixing material applied to the coil winding part.The coil winding portion is coated with the coating means.While applying the fixing material, adjusting the supply amount of the fixing material based on the situation of the protruding and unpainted fixing material,After the superconducting wire is wound, the fixing material is cured.
[0014]
  According to the manufacturing method of claim 1, after winding the superconducting wire while applying the fixing material to the coil winding portion by the applying means, the fixing material is cured, thereby fixing the superconducting wire with a heat shrinkage rate close to the superconducting wire. The material can be filled without gaps and without reducing the filling rate of the superconducting wire.it can.
[0015]
  In order to solve the above-described problem, the superconducting coil manufacturing apparatus according to claim 2A fixing material supply device for supplying a fixing material to the coil winding portion and the supplied fixing material to the coil winding portion.Fixing materialAs the winding of the superconducting wire progresses, the spreader and these fixed material supply device and fixed material spreaderSuperconducting coilMove in turn direction and layer directionMeans, and a monitoring device for monitoring the sticking of the fixing material at the end of the fixing material spreader and unpainted material,The fixing material is applied to the coil winding portion.While adjusting the supply amount of the fixing material based on the situation of the protruding and unpainted fixing materialThe superconducting wire is wound.
[0016]
  Claim 2According to this manufacturing apparatus, it is possible to reliably fill the gap between the superconducting wires with a highly viscous fixing material.By monitoring the painted state with a monitoring device, it is possible to adjust the excess and deficiency of the fixing material and to ensure that the appropriate amount of fixing material is filled.can do.
[0017]
  Claim 3The manufacturing equipment ofClaim 2The superconducting coil manufacturing apparatus according to claim 1, further comprising winding end detection means for detecting a winding end portion of a superconducting wire wound around the coil winding portion provided in the mounting portion of the fixing material coating device. The winding end detected by the end detecting means controls the transition to the next layer of the fixing material supply device and the fixing material spreader and the reverse rotation of the turn direction.
[0018]
  Claim 3According to this manufacturing apparatus, it is possible to control the positions of the fixing material supply device and the fixing material spreading device by means of the winding end detection means for detecting the coil winding end, and the manufacturing apparatus can be automated.
[0019]
  Claim 4The manufacturing equipment ofClaim 2The superconducting coil manufacturing apparatus described above is characterized in that a mechanism for pressing a winding superconducting wire against the coil winding portion is provided.
[0020]
  Claim 4According to this manufacturing apparatus, by pressing the superconducting wire against the coil winding part, the degree of adhesion between the wound superconducting wires is increased, the space factor of the superconducting wire is set to a predetermined amount, and the fixing material is unnecessary. Filling can be prevented.
[0021]
  Claim 5The manufacturing equipment ofClaim 2In the superconducting coil manufacturing apparatus described above, the fixing material supply device includes a supply pipe and a screw conveyor that is rotatably disposed in the supply pipe and supplies the fixing material to the coil winding portion.
[0022]
  Claim 5According to the manufacturing apparatus of the present invention, it is possible to avoid the shortage and the remainder of the fixed material to be spread by making the supply amount of the fixed material supplied and spread to the coil winding part by the screw conveyor and the supply pipe accurate.it can.
[0023]
  Claim 6The manufacturing equipment ofClaim 5In the described superconducting coil manufacturing apparatus, the fixing material supply device includes stirring means for stirring the fixing material.Supplied to the coil winding part through the fixing material supply pipeIt is characterized by that.
[0024]
  Claim 6According to the manufacturing apparatus, the fixing material stirred by the stirring deviceSupplied to the coil winding part through the fixing material supply pipeThus, generation of bubbles and voids in the fixing material can be prevented, and a shortage in the amount of fixing material applied to the coil winding portion by the bubbles and voids in the fixing material can be avoided.
[0025]
  Claim 7The manufacturing equipment ofClaim 2In the superconducting coil manufacturing apparatus described above, the fixing material supply device is an endlessly moving belt.
[0026]
  Claim 7According to this manufacturing apparatus, by carrying the fixing material by the belt, it is avoided that the amount of the fixing material changes during transportation due to adhesion to a supply pipe or the like during the conveyance of the fixing material or peeling of the adhering fixing material. The amount of fixing material applied to the coil winding portion can be made constant.
[0027]
  Claim 8The manufacturing equipment ofClaim 7The superconducting coil manufacturing apparatus according to the present invention has a fixing material container in which a fixing material is accommodated and a part of the belt is immersed in the fixing material, and the amount of the fixing material carried by the belt is adjusted in the fixing material container. It is characterized in that means for performing the above is provided.
[0028]
  Claim 8According to the manufacturing apparatus, by adjusting the amount of fixing material carried by the belt by means of adjusting the amount of fixing material provided in the fixing material container, the amount of fixing material spread on the coil winding portion is adjusted appropriately. In addition, the waste of the fixing material due to the adjustment of the amount of the fixing material can be prevented.
[0029]
  Claim 9The manufacturing equipment ofClaim 7 or 8In the superconducting coil manufacturing apparatus described above, the belt has a fixing material coating function in addition to the fixing material supply function.
[0030]
  Claim 9According to this manufacturing apparatus, it is possible to simplify the apparatus by supplying and spreading the fixing material with the belt, and to reduce the failure of the apparatus.
[0031]
  Claim 10The manufacturing equipment ofClaims 7 to 9In the superconducting coil manufacturing apparatus according to any one of the above, a fixing material that is more than the amount required for spreading is collected from the coil winding portion into a fixing material container via a belt.
[0032]
  Claim 10According to this manufacturing apparatus, it is possible to appropriately adjust the amount of the fixing material to be applied by the coating extending portion, and it is possible to avoid the loss of the fixing material by collecting the fixing material in the fixing material container.
[0033]
  Claim 11The manufacturing equipment ofClaims 2 to 10In the superconducting coil manufacturing apparatus according to any one of the above, a measuring means for measuring a distance between the fixing material supply device, the fixing material spreading device, and the coil winding portion is provided.
[0034]
  Claim 11According to the manufacturing apparatus of the present invention, by measuring the distance between the fixing material supply device and the fixing material spreading device and the coil winding portion, the coil winding portion, the fixing material supply device and the fixing material coating device The position can be maintained appropriately, and it is possible to prevent the superconducting coil from being damaged due to the distance being too short, or preventing the fixing material from being applied to the coil winding portion due to the distance being too far.
[0035]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0036]
  [One Embodiment of Manufacturing Method]
  FIG. 1 is a block diagram showing an embodiment of a method of manufacturing a superconducting coil according to the present invention. Note that the same reference numerals are used for the same or corresponding parts as those in FIG.
[0037]
  As shown in FIG. 1, in this embodiment, when the superconducting wire 1 is wound around the winding frame 2 of the superconducting coil, the coil winding portion 4 is fixed to the coil winding portion 4 with a resin such as an epoxy resin by a brush 5 as an application means. After a predetermined number of turns while applying the material, a superconducting coil is manufactured by room temperature curing or heat curing depending on the resin material.
[0038]
  The fixing material is mixed with a filler, and the filler is rounded by melting a sharp portion by heat treating a spherical or crushed product, and the viscosity of the fixing material is 1 to 20 ° C. It is adjusted to 100 Pa · S.
[0039]
  Therefore, a high-viscosity fixing material in which the heat shrinkage rate of the fixing material is close to the heat shrinkage rate of the superconducting wire 1 can be reliably applied to the entire coil winding portion 4 by mixing the filler in the fixing material. it can.
[0040]
  Next, the operation of this embodiment will be described.
[0041]
  The amount of the fixing material applied to the surface of the coil winding portion 4 by the brush 5 is made slightly larger than the volume of the gap formed between the superconducting wires 1 after the winding. Then, the slightly remaining fixing material at this time is wound from the coil winding portion 4 that has finished winding by the superconducting wire 1 being pressed against the coil winding portion 4 by the winding tension of the superconducting wire 1. It protrudes to the coil winding part 4. In this case, if the amount of the fixing material to be brushed is adjusted with the brush 5 while observing the amount of the fixing material protruding from the portion where the winding is to be performed, the coil winding portion 4 from which the superconducting wire 1 is to be wound will be applied. A suitable amount of fixing material can always be applied.
[0042]
  For this reason, as shown in FIGS. 6 (A) to 6 (C), the reel side gap 3a is inevitably generated between the superconducting wires 1 larger than the normal winding portion and the position cannot be predicted. In the rising portion gap 3b and the transition portion gap 3c, the fixing material can be filled in the superconducting wire 1 without excess or shortage by adjusting the application amount of the fixing material.
[0043]
  At this time, the shape of the filler mixed in the fixing material is a spherical shape or a crushed product, and a sharp portion is melted to have a rounded shape so that the insulation of the superconducting wire 1 is applied when the fixing material is applied. The coil winding part avoids problems such as damage to the coating, hooking of the filler into the gap between the superconducting wires 1 and insufficient filling of the fixing material, or local mixing rate of the filler. The fixing material can be reliably applied to 4.
[0044]
  Furthermore, by adjusting the viscosity of the fixing material to 1 to 100 Pa · S at 20 ° C., the viscosity is too high to cause application spots of the fixing material, or conversely, the fixing material is too low to reach the coil winding portion 4. It is possible to prevent dripping or unnecessary movement after application of the coating.
[0045]
  As described above, according to this embodiment, the fixing material is applied to the place where the superconducting wire 1 is wound around the coil winding portion 4, so that the fixing material having a thermal contraction rate close to that of the superconducting wire 1 can be formed without any gap. It is possible to fill without reducing the filling rate of 1. As a result, the size of the superconducting coil can be manufactured as designed, and cracks in the fixing material due to the difference in thermal shrinkage between the superconducting wire 1 and the fixing material, or voids (voids) in the fixing material can be generated. Quenching due to the generation of cracks as a starting point can be avoided. As a result, a superconducting coil having high superconducting stability can be obtained.
[0046]
  In addition, according to the present embodiment, the shape of the coil winding portion 4 can be obtained regardless of the viscosity of the fixing material by applying the brush 5 to the place where the superconducting wire 1 is wound around the coil winding portion 4. Appropriate amount corresponding to can be applied.
[0047]
  Furthermore, by setting the viscosity of the fixing material to 1 to 100 Pa · S at 20 ° C., the fixing material is hardened and cannot be uniformly extended to the coil winding portion 4 or fixed after being applied to the coil winding portion 4. A predetermined amount of the fixing material can be filled without dripping the material.
[0048]
  And by making the shape of the filler mixed in the fixing material into a spherical or rounded shape, the filler is caught in the gap of the superconducting wire 1 so that the fixing material is not filled or is filled by a painting operation. The fixing material can be applied without damaging the insulation coating of the superconducting wire 1 at the acute angle portion of the material.
[0049]
  In the present embodiment, the brush 5 is used as the coating means, but the present invention is not limited to this, and a spatula or the like may be used.
[0050]
  [First Embodiment of Manufacturing Apparatus]
  FIG. 2 is a block diagram showing a first embodiment of the superconducting coil manufacturing apparatus according to the present invention, and FIG. 3 is a side view of FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the part same as FIG. The same applies to the following embodiments. In FIG. 2, the coil turn direction moving device and the layer direction moving device shown in FIG. 3 are omitted because they are complicated.
[0051]
  As shown in FIGS. 2 and 3, the manufacturing apparatus of this embodiment includes a fixing material supply device 10 that supplies a fixing material 6 to the coil winding portion 4, and a fixing material 6 that is supplied by the fixing material supply device 10. , A turn direction moving device 21 for moving the fixing material supply device 10 and the coating device 20 in the turn direction of the coil as the winding of the superconducting wire 1 progresses. A layer direction moving device 22 for moving in the layer direction is provided, and the superconducting wire 1 is wound while the fixing material 6 is applied to the coil winding portion 4. Here, the fixing material 6 is the same as that of the embodiment shown in FIG.
[0052]
  The fixing material supply apparatus 10 includes a fixing material container 11 that accommodates the fixing material 6, a propeller-like stirrer 12 that is installed in the fixing material container 11 and agitates the fixing material 6, and the agitator 12. An agitation drive device 13 that drives the fixing material, a fixing material supply pipe 14 that is connected to the lower part of the fixing material container 11, and a fixing material 6 that is rotatably disposed in the fixing material supply pipe 14 and that is supplied to the coil winding portion 4. A screw conveyor (spiral extruder) 15 and a supply driving device 16 disposed at one end of the fixing material supply pipe 14 to drive the screw conveyor 15. By driving the screw conveyor 15, the fixing material supply pipe 14 The fixing material 6 is supplied to the coil winding part 4 from the other end.
[0053]
  In addition, a coating device 20 is installed near the other end of the fixing material supply pipe 14, and the fixing material 6 applied to the coil winding portion 4 is applied by the coating device 20. Then, an angle detector 23 as a measuring means is attached to the base of the paint spreading device 20, and the angle detector 23 measures the change in the angle of the paint painting device 20, whereby the fixing material supply pipe 14 and The distance from the coil winding portion 4 is measured.
[0054]
  Further, a coating spread monitoring device 24 is arranged in the vicinity of the coating material spreading device 20 of the fixing material supply pipe 14, and this coating spreading monitoring device 24 protrudes or leaves unpainted fixing material 6 at the end of the coating coating device 20. To monitor.
[0055]
  The fixing material supply device 10 and the coating and spreading device 20 are moved to appropriate positions by the turn direction moving device 21 and the layer direction moving device 22 as described above, and the weight balance is maintained by the balance weight 25. Yes.
[0056]
  On the other hand, as shown in FIG. 2, a superconducting wire pressing device 26 for pressing the wound superconducting wire 1 against the coil winding portion 4 is disposed in the vicinity of the coil winding portion 4. The superconducting wire 1 wound around the spread fixing material 6 is pressed against the coil winding portion 4.
[0057]
  In addition, a winding end of the superconducting wire 1 wound around the coil winding portion 4 is detected on the upstream side of the coil winding portion 4 of the coating spreading device 20, which is an attachment portion of the spreading device 20. A winding end detector 27 is disposed as a winding end detecting means for controlling the turn direction moving device 21 and the layer direction moving device 22 at the winding end detected by the winding end detector 27. Control of the transition to the next layer of the fixing material supply device 10 and the coating / stretching device 20 and the reversal of the turn direction are performed.
[0058]
  Next, the operation of this embodiment will be described.
[0059]
  The fixing material 6 accommodated in the fixing material container 11 is agitated by a rotating stirrer 12 by driving the agitation driving device 13, thereby being uniformly combined with the filler. At this time, the agitator 12 rotates so as to send the fixing material 6 toward the screw conveyor 15 in the fixing material supply pipe 14.
[0060]
  That is, the fixing material 6 is uniformly stirred by the stirrer 12 and is sent to the screw conveyor 15. At this time, the feed amount of the fixing material 6 is fed more than the required amount, and pressure is applied to the fixing material 6, so that the movement of the agitator 12 to stretch the fixing material 6 and the pressure in the fixing material 6 Bubbles and voids are removed. In addition, the excess fixing material 6 raises the fixing material container 11 side surface, and is sent back to the origin.
[0061]
  The sent fixing material 6 is supplied to the coil winding portion 4 from the other end of the fixing material supply pipe 14 by the rotation of the screw conveyor 15 whose rotational speed is adjusted, and is necessary for the coil winding portion 4. The amount is smeared.
[0062]
  The fixing material 6 applied to the coil winding part 4 is applied evenly to the coil winding part 4 by the coating device 20. Here, when the state is monitored and adjusted by the coating spread monitoring device 24, the gap formed in the coil winding portion 4 is sufficiently filled with the fixing material 6, and the coil winding portion 4 is fixed to the fixing material 6. Can be prevented from being unnecessarily applied.
[0063]
  The superconducting wire 1 wound on the spread fixing material 6 is pressed against the coil winding portion 4 by the superconducting wire pressing device 26. Thereby, it is possible to prevent the superconducting wire 1 from being lifted by the applied fixing material 6 and winding the superconducting wire 1 to a diameter larger than a predetermined position.
[0064]
  Furthermore, at the coil winding end, it is detected that the winding end detector 27 has reached the winding end, and control such as transition to the next layer and turn direction and reversal of the moving direction is performed.
[0065]
  Therefore, in the present embodiment, movement and position control of the fixing material supply device 10 and the coating and spreading device 20 are automatically performed by the turn direction moving device 21, the layer direction moving device 22, the angle detector 23, and the winding end detector 27. Since it can be performed, a superconducting coil can be manufactured automatically.
[0066]
  As described above, according to the present embodiment, the fixing material supply device 10 that supplies the fixing material 6 to the coil winding portion 4, and the spreading device 20 that spreads the supplied fixing material 6 on the coil winding portion 4; And a turn direction moving device 21 and a layer direction moving device 22 for moving the fixing material supply device 10 and the coating and spreading device 20 in the turn direction and the layer direction of the coil as the winding of the superconducting wire 1 proceeds. By winding the superconducting wire 1 while applying the fixing material 6 to the wire portion 4, it is possible to reliably fill the gap between the superconducting wires 1 with the highly viscous fixing material 6.
[0067]
  The fixing material supply device 10 includes a stirrer 12 that stirs the fixing material 6. By sending the fixing material 6 stirred by the stirrer 12 to the fixing material supply pipe 14, bubbles and voids are generated in the fixing material 6. It is possible to prevent the occurrence of deficiency in the amount of the fixing material applied to the coil winding portion 4 due to bubbles or voids in the fixing material 6.
[0068]
  Further, the fixing material supply device is controlled by controlling the transition to the next layer of the fixing material supply device 10 and the coating device 20 and the reversal of the turn direction at the winding end detected by the winding end detector 27. 10 and the position of the coating apparatus 20 can be controlled, and the manufacturing apparatus can be automated.
[0069]
  Further, the superconducting wire pusher 26 presses the wound superconducting wire 1 against the coil winding portion 4, thereby improving the close contact between the wound superconducting wires 1 and increasing the space factor of the superconducting wire 1 to a predetermined amount. In addition, the fixing material 6 can be prevented from being unnecessarily filled.
[0070]
  The fixing material supply device 10 includes a fixing material supply pipe 14 and a screw conveyor 15 that is rotatably arranged in the fixing material supply pipe 14 and supplies the fixing material 6 to the coil winding portion 4. By making the amount of the fixing material 6 supplied to the coil winding portion 4 and spread out accurate, it is possible to avoid the shortage and the surplus of the fixing material 6 to be spread out.
[0071]
  According to the present embodiment, the spreader monitoring device 24 for monitoring the protrusion of the fixing material 6 at the end portion of the spreader 20 and the unpainted portion is provided, and the fixing material 6 is fixed based on the state of the protrusion and the unpainted portion of the fixing material 6. By adjusting the supply amount of the material 6, it is possible to further ensure that an appropriate amount of the fixing material 6 is filled.
[0072]
  Further, the angle detector 23 measures the change in the angle of the coating / stretching device 20, thereby measuring the spacing between the fixing material supply device 10 and the coating / stretching device 20 and the coil winding portion 4, thereby winding the coil. The positions of the wire portion 4 and the fixing material supply device 10 and the coating device 20 can be properly maintained, and the superconducting coil is damaged when the distance is too close, or is fixed to the coil winding portion 4 when the distance is too far. It can be avoided that the material 6 cannot be applied.
[0073]
  FIG. 4 is a block diagram showing a modification of the first embodiment of the superconducting coil manufacturing apparatus according to the present invention. In this modification, instead of the angle detector 23 of the first embodiment, a distance measuring device 28 as a measuring means is attached to the lower part of the fixing material supply pipe 14. The distance measuring device 28 measures the distance between the fixing material supply device 10 and the coating / stretching device 20 and the uncoated portion of the fixing material 6 of the coil winding portion 4.
[0074]
  Therefore, measurement errors due to the fixing material 6 are avoided by measuring the positions of the fixing material supply device 10 and the spreader device 20 and the portion of the coil winding portion 4 where the fixing material 6 is not applied by the distance measuring device 28. Thus, the position control of the fixing material supply device 10 and the coating / stretching device 20 and the coil winding portion 4 can be reliably performed.
[0075]
  [Second Embodiment of Manufacturing Apparatus]
  FIG. 5 is a block diagram showing a second embodiment of the superconducting coil manufacturing apparatus according to the present invention.
[0076]
  As shown in FIG. 5, a fixing material 6 is accommodated in a fixing material container 30, and a part of a timing belt 31 that moves endlessly is immersed in the fixing material container 30, and the timing belt 31 includes a belt driving device 32 and this belt. A driving wheel 33 a that is rotationally driven by the driving device 32, a driven wheel 33 b that is disposed in the fixing material container 30, and a driven wheel 33 c that is disposed in the vicinity of the coil winding portion 4 are provided. The timing belt 31 is applied with a predetermined tension by the belt tension machine 34 to prevent looseness. An application amount adjuster 35 is installed in the fixing material container 30, and this application amount adjuster 35 adjusts the amount of the fixing material 6 carried by the timing belt 31.
[0077]
  Further, between the timing belt 31 and the coil winding portion 4, a fixing material applicator 36 for applying the fixing material 6 carried by the timing belt 31 to the coil winding portion 4 and a coil winding portion 4 are applied. A spreading adjuster 37 for spreading the attached fixing material 6 is arranged.
[0078]
  Next, the operation of this embodiment will be described.
[0079]
  When the belt driving device 33 is driven to rotate the drive wheel 33a, the timing belt 31 rotates, so that the amount of the fixing material 6 in the fixing material container 30 is adjusted by the coating amount adjuster 35 while the coil is adjusted. It is carried to the winding part 4. In the coil winding portion 4, all the fixing materials 6 carried by the timing belt 31 by the fixing material applicator 36 are applied to the coil winding portion 4. The fixing material 6 applied to the coil winding portion 4 is spread by the coating spread adjuster 37, and the excess fixing material 6 is returned to the timing belt 31 and returned to the fixing material container 30.
[0080]
  Here, the fixing material 6 is given to the timing belt 31 slightly more than the required amount by the application amount adjuster 35. The fixing material 6 is conveyed by the timing belt 31 to the coil winding part 4 in a non-contact manner with the timing belt 31, and the fixing material 6 is adjusted to a viscosity that does not sag in the coil winding part 4. The belt 31 does not sag. Therefore, since all the amount of the fixing material 6 carried by the fixing material applicator 36 is applied to the coil winding portion 4, a fixed amount of the fixing material 6 can always be applied to the coil winding portion 4. .
[0081]
  The applied fixing material 6 is applied to the coil winding portion 4 by being adjusted to a certain thickness by the coating spread adjuster 37, and the unnecessary fixing material 6 is returned to the timing belt 31. For this reason, the superconducting wire 1 is wound on the fixed member 6 having a constant thickness regardless of the gap of the coil winding portion 4.
[0082]
  The remaining fixing material 6 due to this winding will protrude to the next turn, but this part including the amount of the remaining fixing material 6 immediately before the winding is adjusted to a constant thickness by the coating spread adjuster 37. Is done. As a result, the necessary fixing material 6 can always be applied to the coil winding portion 4 without adjusting the amount of application of the complicated fixing material 6.
[0083]
  As described above, according to this embodiment, the coil winding portion 4 is coated with the high-viscosity fixing material 6 that is adjusted to the required amount and close to the superconducting wire 1 with a relatively simple mechanism. A coil can be manufactured.
[0084]
  Further, by carrying the fixing material 6 by the timing belt 31, it is possible to prevent the amount of the fixing material from changing during transportation due to adhesion to a supply pipe or the like during the conveyance of the fixing material 6 or peeling of the adhering fixing material. The amount of the fixing material applied to the coil winding portion 4 can be made constant.
[0085]
  Furthermore, by adjusting the amount of fixing material carried by the timing belt 31 to the fixing material container 30 by the application amount adjuster 35, the amount of fixing material spread on the coil winding portion 4 can be adjusted appropriately, and the amount of fixing material This eliminates waste of the fixing material due to the adjustment.
[0086]
  And since the fixing material 6 that is more than the necessary amount of coating is collected in the fixing material container 30, the amount of the fixing material to be applied at the coating extension portion can be adjusted appropriately, and the fixing material 6 may be wasted. Absent.
[0087]
  In the present embodiment, if the timing belt 31 is configured to have a fixing material spreading function in addition to the fixing material supply function, the apparatus can be further simplified and the failure of the apparatus is reduced. be able to.
[0088]
【The invention's effect】
  As described above, according to the method of manufacturing a superconducting coil according to the present invention, after winding the superconducting wire while applying the fixing material to the coil winding portion by the application means, the fixing material is cured, Since the superconducting coil can be filled with a high-viscosity fixing material whose shrinkage rate is close to that of a superconducting wire, quenching may be caused by cracks in the fixing material due to thermal shrinkage differences or voids in the fixing material. Absent.
[0089]
  In addition, since the size of the superconducting coil does not increase due to excessive filling of the fixing material, a highly stable superconducting coil having a predetermined shape can be obtained.
[0090]
  According to the superconducting coil manufacturing apparatus according to the present invention, by winding the superconducting wire while applying the fixing material to the coil winding portion, the gap between the superconducting wires is reliably filled with the highly viscous fixing material. Can do.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an embodiment of a method of manufacturing a superconducting coil according to the present invention.
FIG. 2 is a configuration diagram showing a first embodiment of a superconducting coil manufacturing apparatus according to the present invention.
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a configuration diagram showing a modification of the first embodiment of the superconducting coil manufacturing apparatus.
FIG. 5 is a configuration diagram showing a second embodiment of the superconducting coil manufacturing apparatus according to the present invention.
FIGS. 6A, 6B, and 6C are diagrams for explaining a problem caused by a conventional method. FIGS.
[Explanation of symbols]
1 Superconducting wire
2 reel
4 Coil winding part
5 Brush (application means)
6 Fixing material
10 Fixing material supply device
11 Fixed material container
12 Stirrer
13 Stirring drive device
14 Fixed material supply pipe
15 Screw conveyor
16 Supply drive unit
20 Coating equipment
21 Turn direction moving device
22 Layer direction moving device
23 Angle detector (measuring means)
24 Coating spread monitoring device
25 Balance weight
26 Superconducting wire pusher
27 Winding end detector
28 Distance measuring instrument (measuring means)
30 Fixed material container
31 Timing belt
32 Belt drive
33a Drive wheel
34 Belt tension machine
35 Application amount adjuster
36 Fixed material applicator
37 coating spread adjuster

Claims (11)

In the method for manufacturing a superconducting coil for producing solidify the superconducting wire by a fixing member to the coil winding portion,
The fixing material is supplied to the coil winding portion by a fixing material supply device,
Spread the supplied fixing material on the coil winding part,
As the superconducting wire advances to the coil winding part, the superconducting coil is moved in the turn direction and the layer direction,
The monitoring means monitors the overhang and the remaining coating of the fixing material applied to the coil winding part,
After winding the superconducting wire while applying the fixing material to the coil winding portion by applying means , adjusting the supply amount of the fixing material based on the state of protrusion and unpainted fixing material , A method of manufacturing a superconducting coil, wherein the fixing material is cured. A fixing material supply device for supplying a fixing material to the coil winding portion;
A fixing material spreading device for spreading the supplied fixing material on the coil winding portion;
Means for moving the fixing material supply device and the fixing material spreading device in the turn direction and the layer direction of the superconducting coil as the winding of the superconducting wire progresses ;
A monitoring device for monitoring the sticking of the fixing material at the end of the fixing material spreader and the remaining coating,
A superconducting coil in which the fixing material is applied to the coil winding portion, and the superconducting wire is wound while adjusting the supply amount of the fixing material based on the state of protrusion and unpainted fixing material. Manufacturing equipment. The superconducting coil manufacturing apparatus according to claim 2 , further comprising a winding end detection means for detecting a winding end of a superconducting wire wound around the coil winding portion provided in an attachment portion of the fixing material coating apparatus. Production of a superconducting coil characterized by controlling the transition to the next layer of the fixing material supply device and the fixing material spreading device and the reversal of the turn direction at the winding end detected by the winding end detecting means apparatus. 3. The superconducting coil manufacturing apparatus according to claim 2 , further comprising a mechanism for pressing a winding superconducting wire against the coil winding portion. 3. The superconducting coil manufacturing apparatus according to claim 2, wherein the fixing material supply device includes a supply pipe and a screw conveyor that is rotatably disposed in the supply pipe and supplies the coil winding portion with the fixing material. A superconducting coil manufacturing apparatus. 6. The superconducting coil manufacturing apparatus according to claim 5, wherein the fixing material supply device includes stirring means for stirring the fixing material, and supplies the stirred fixing material to the coil winding portion via the fixing material supply pipe. A superconducting coil manufacturing apparatus. 3. The superconducting coil manufacturing apparatus according to claim 2, wherein the fixing material supply device is an endlessly moving belt. 8. The superconducting coil manufacturing apparatus according to claim 7 , further comprising a fixing material container in which the fixing material is accommodated and a part of the belt is immersed in the fixing material, and the fixing material carried by the belt to the fixing material container. An apparatus for producing a superconducting coil, characterized in that means for adjusting the amount is provided. 9. The superconducting coil manufacturing apparatus according to claim 7, wherein the belt also has a fixing material coating function in addition to the fixing material supply function. The superconducting coil manufacturing apparatus according to any one of claims 7 to 9 , wherein a fixing material more than a necessary amount for spreading is recovered from a coil winding portion to a fixing material container via a belt. Manufacturing equipment. 11. The superconducting coil manufacturing apparatus according to claim 2, further comprising a measuring means for measuring a distance between the fixing material supply device, the fixing material coating device, and the coil winding portion. Superconducting coil manufacturing equipment.

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