JPS5914611A - Superconductive cylindrical coil winding and winding apparatus - Google Patents

Abstract

PURPOSE:To obtain a superconductive cylindrical coil having high stability and reliability by placing a coil obtained by temporarily winding a superconductive lead wire within the elastic range into an external cylindrical case and placing it in close contact to the internal side of said external cylindrical case by applying a compressing force to the circumferential direction in such a manner that it is pressed outward. CONSTITUTION:The one end of superconductive lead wire of a temporary coil 22 wound previously at the outside of internal cylindrical portion 21 of rotatable bobbin is extended and fixed to the inside of external cylindrical part 23 which is fixed concentrically to the temporary coil 22. Thereafter, the temporary coil 22 and clamping apparatus such as rollers 24, 26 are rotated clockwise simultaneously and the superconductive lead wire 1 is placed closely to the inside of external cylindrical portion 23 while applying a compressing force to the extending portion 25 of the superconductive lead wire. Simultaneously, a guide roller 26 is placed in contact to the one side of extending portion 25 of the superconductive lead wire. When only the holding and the guide rollers 24, 26 are rotated counterclockwise, the temporary coil 22 is sequentially released and thereby a cylindrical coil 28 which is reinforced by the external cylindrical portion 23 can be obtained. Thereby, a superconductive cylindrical coil having a less number of trainings and thereby assuring high stability and reliability can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for winding a cylindrical shadow coil and a device for winding the coil.

In this type of superconducting film, it is necessary to firmly hold the coil to prevent it from loosening due to the large electromagnetic force generated by the current.

If the current flowing through one coil is small, such as in a normal normally conducting cylindrical coil, and therefore the electromagnetic force that expands the fill in the radial direction is small, the strength of the fill itself can withstand this electromagnetic force. However, when the current density of the IB conductive cylindrical coil becomes large at l:5 and the electromagnetic force that expands the fill in the radial direction becomes large, the coil itself cannot withstand this electromagnetic force, and the binding wire is attached to the outside of the fill 9. A middle stage was used to withstand electromagnetic force by wrapping it around or inserting it into an outer cylinder. However, the conventional reinforcing method for coils requires a lot of man-hours and skill, and the winding method is as shown in Fig. 5.
Since the superconducting wire is wound around the cylinder 3 while applying an IK tension of 2 ft, stress that tends to compress the coil in the radial direction remains. In addition, the direction of the binding wire σ) that winds up the outside of the coil to withstand electromagnetic force, and the direction of the force applied to the coil when using an outer cylinder, are all compressed in the radial direction of the coil. Expansive? ! ! The direction was completely opposite to the direction of the magnetic force. Therefore, it was not effective in preventing training which is thought to occur due to the interaction between the W and i forces and the structure of the coil and its constituent materials. Therefore, it had the disadvantage of requiring a large number of training sessions.

By the way, training means that quenching occurs at a lower current value before reaching the maximum current value estimated from the characteristics of a short sample of a superconducting wire (a phenomenon in which the induced conduction state is broken and the state changes to normal conductivity), but the current is still flowing. As this process is repeated, the material of the fill becomes familiar, and the quench current value gradually increases, approaching the maximum current value estimated from the characteristics of the short sample.

The object of the present invention is to manufacture a superconducting cylindrical coil that has the above-mentioned conventional drawbacks of V#, requires fewer training sessions, and therefore has less quenching, and is highly safe and reliable. According to the present invention, the purpose of this is to put a fill temporarily wrapped within the elastic region of the PR conductive wire into the outer cylinder, and apply a circumferential circumferential pressure M force to push the superconducting wire instead of pulling it as it thrums. In addition, by placing the trap in close contact with the inside of the outer cylinder, a force that constantly tries to spread outward is applied to the conductor, similar to electromagnetic force! ! It was achieved by a locomotive and a gecko. Specifically, the purpose was achieved in the following manner. In other words, the end of a temporary coil made by pre-winding superconducting wire in a cylindrical shape around a winding frame that grows a rotating inner cylinder is A plurality of holding rollers that press the outer periphery of the temporary coil and the transition portion of the temporary coil are fixed by passing them to the inside of the outer cylinder that is arranged concentrically and fixed on the outside of the inner cylinder (1). One or more guide rollers for guiding the rollers, and a pressing device that supports these rollers and can be rotated in the circumferential direction are attached to the winding frame, and the inner tube, temporary coil, and pressing device are rotated as a whole. By applying a compressive force in the circumferential direction to the transition portion of the temporary coil, the transition portion of the temporary coil is brought into contact with the guide roller and in close contact with the inner cylinder of the outer cylinder, and the pressing device is rotated while the inner cylinder is rotated. Embodiments of the present invention, which are achieved by sequentially winding the temporary fill around the outer cylinder while rotating in the opposite direction, will be described in detail with reference to the drawings. In order to understand the concept of the above, the temporary coil 22 is pre-wound in a cylindrical shape on the outside of the inner tube 21 of the rotatable winding frame. A plurality of holding rollers 24 are passed over and fixed to the inside of the outer cylinder n, which is arranged and fixed to the outer cylinder n, and hold down the outer periphery of the temporary film 22, and one roller that guides the superconducting wire to the inside of the outer cylinder n, which is the transition portion 25 of the superconducting wire. A presser device (not shown) that supports one or more guide rollers 26 (one in the figure) is attached to a winding frame (not shown) of which the inner tube 21 is a part, and the winding frame (inner tube 21 in the figure) is temporarily pressed. The coil 22 and the holding device (rollers 24 and 26 in the figure) are both rotated clockwise to apply a compressive force (4) to the transition portion 25 of the superconducting wire.
The superconducting wire 1 is brought into close contact with the inside of the outer cylinder while supporting the arrow 27) in the figure, and at the same time the guide roller 26 is brought into contact with one side of the crossing section of the superconducting wire (Fig. 2). When only the presser and (holding roller U and guide roller 26 in the figure) are rotated in the opposite direction, rotational force is constantly acting on the inner cylinder 21 and the temporary coil 22 in the clockwise direction, so the rotational force becomes 5 as shown in FIG. 3. The temporary fill 22 is sent out sequentially and the fourth
A cylindrical coil 4 reinforced by the outer cylinder n shown in the figure is obtained. In this case, the axis of the plate coil 22 is made vertical, and the superconducting wire 1 at the lowest end is fixed to the lower part of the inside of the outer cylinder, and the temporary film n By sequentially unwinding from the lower end and sequentially winding upward from the inner lower end of the outer tube n, the lower end surface of the temporary filter 22 and the supernight cylindrical coil path wound around the outer tube are formed to make it easier to wind. The distance that the temporary film 22 must be moved in its axial direction to align with the upper end surface is small. If the temporary coil 22 is unwound from the top and rolled up from the bottom inside the outer cylinder, the movement of the temporary coil will be twice its height, and the space required for the work will become very large (see FIG. 7).

In addition, by reversing the winding direction of the temporary coil 22 and the superconducting cylindrical coil wound inside the outer cylinder, the stress within the conductor that occurs during winding is in the same direction, so no extra stress is applied to the conductor. This has the advantage of being easier to wrap and wind.

It is desired that an apparatus for producing such a cylindrical coil has a simple structure and does not require space. In response to the above-mentioned demands, the present invention has been constructed as follows in order to provide the required functions. That is, a winding frame with a temporary fill wound smaller than the superconducting cylindrical coil is arranged inside the outer cylinder around which the superconducting cylindrical coil is wound, and all devices other than those that need to be installed outside the winding frame are placed inside the winding frame. It is possible to simplify the device by storing it inside the space, eliminate anything that protrudes from the outside space in plan view, and reduce the required height during work by unwinding the temporary coil from the bottom. significantly reduced.

Figures P5 to 7 are VQ drawings of the superconducting cylindrical coil winding device according to the embodiment of the present invention.

In this device, a cylindrical coil 22 that has been previously wound using a super V conducting wire is erected vertically, and the winding P is unwound from the bottom of the coil 22, and a temporary fill 22 is applied to the unwound super V wire. While applying a compressive force by rotating clockwise (in the figure), the outer cylinder 23 is re-wound to the inside of the outer cylinder 23, which is fixed to the outside almost concentrically with the temporary coil 22, and reinforced by the outer cylinder 23K. This is a device that produces superconducting cylindrical coils. This device consists of an outer cylinder 2 with a cylindrical cavity inside.
3, an inner cylinder 21 around which the temporary coil 22 is wound, and end plates 6 disposed at both axial ends of the inner cylinder and integrated with the inner cylinder 21.
A winding frame 62 consisting of a winding frame 62 and a support shaft 64 arranged on the axis of the winding frame, rotatably supporting the winding frame at its end plate 61 by roller bearings 63, etc.; A lifter 65 moves the coil in the direction to level the lower end surface of the temporary coil with the upper end surface of the coil fully wound inside the outer cylinder, and a winding frame rotation device 6 supports the winding frame 62 and rotates it around the shaft 640.
6. In addition, a plurality of holding rollers 24 that press the outer periphery of the temporary coil 22 and a transition portion of the temporary film 22 are superconducting;
The two types of rollers 24 and 26 both extend in the axial direction of the temporary coil 22 with one or more guide rollers 26 that hold down the IiI 25 and guide it inside the outer cylinder, and a holding device 67 that can adjust the pressing force. , a presser rotation device 11j68 which can rotate around the axis of the winding frame 62, which is a presser presser device.

In addition, the inner cylinder 21K of the winding frame 62 has a plurality of windows 69 that extend in the axial direction, so that the state of the temporary fill 22 can be monitored.The lifter 65 can move the support shaft 64 in its axial direction. The support is fixed to the base 70 and the lower part of the support shaft 64, and the support includes a worm wheel 71 that protrudes through the support portion 70a of the support shaft 64 of the base 70, and a worm 72 that engages with the worm wheel. electric motor 7 connected to the worm
3 and more? ff, motive 73 K moves the winding frame 62 up and down to correct the difference between the lower end surface of the temporary coil 22 and the upper end surface of the superconducting coil caused by the pressure difference between the diameters, making it easier to wind.

As shown in the seventh drawing, the reel rotating device 66 has a worm wheel 74 fixed to the support shaft 64 inside one reel 62, and a worm 75 engaged with the worm wheel.
and an electric motor 76 connected to the worm and fixed to the winding frame 62K, so that the worm wheel 74 remains stationary and the winding frame 62 etc. around it rotate. In this way, by storing the winding frame rotation device 66 inside the winding frame 62, it is possible to obtain a winding device that is simpler and takes up less space.

The holding device 67 is arranged on the outer peripheral surface of the temporary fill 22.

A plurality of holding rollers U and guide rollers 26 extending in the axial direction of the temporary coil 22 and both ends of each of these rollers are rotatably supported at one end thereof, and the central portion is a fulcrum 7.
7K, a fixed seat 79 that presses the other end of the link, and a port 80 that engages with the female thread of the link. ) This can be easily done by adjusting the force that pushes the link 78 at the tip.

As clearly shown in FIGS. 5 and 7, the presser foot rotating device t6Fl engages with the convex guide 81 and K groove 82 that are strung outward in the axial direction of the winding frame 620 and both end plates 61 at +6'. It can be guided and rotated around the axis of the temporary coil 22, and has teeth J on its inner diameter.
1183, a ring plate-shaped body 84 and a gear 83
Two small gears 85 that engage with each other, a shaft 86 that connects the two small gears and is supported by the end plate 61, and a deceleration mechanism 87 that connects the shaft.
The electric PJ machine 88 is driven through the deceleration mechanism 8.
7 and W motive 88 Each ring plate-like body 84 housed in the winding frame 62 is rotatably held on the winding frame 62 by a presser plate (not shown) so that it does not move in the axial direction.

Temporary coil 22! Support device that supports fi at its lower end surface *8
Reference numeral 9 denotes a roller 90 that supports the lower end surface of the temporary coil 22, and a support 91 that supports the core roller and has an internal thread cut in the axial direction of the temporary coil t+-22 and is provided with a rotation stopper (not shown). and a threaded shaft 92 that engages with the female thread of the roller holder and is supported at both ends by the two end plates 61K.
, the shaft is rotated via gear mechanism fi93 [#mechanism 4
It becomes more. The roller receiver 91 is attached to pass through the window 69. Further, the operation of this device may be performed automatically by detecting the displacement of the lower end surface of the temporary coil, or may be performed manually by visual pressure.

As is clear from the above explanation, the method for winding a superconducting cylindrical coil of the present invention requires fewer training sessions.
Therefore, it is possible to obtain a highly reliable superconducting cylindrical coil with less safety and less generation.However, according to the winding device of the present invention, a small and simple structure of a superconducting cylindrical coil device can be obtained. I was able to get it.

Although the above explanation has been made regarding the superconducting cylindrical fill, the present invention relates to the superconducting cylindrical fillet 1-, -1.
It can also be applied to the production of other types of coils, such as lace-stra, mirror-shape coils, square-shaped fills, and negative-type coils.

[Brief explanation of drawings]

FIG. 4 is a partially cross-sectional perspective view of a cylindrical coil according to the present invention, and FIGS. The figure is a plan view,
i! IF; Figure 6 is a partially sectional front view; Figure 7 is a longitudinal sectional view. l: superconducting wire, 21: inner cylinder, 22: temporary fill, 23: outer cylinder, 24: holding roller, 25 = transition part of superconducting wire, 26
: Guide roller, 27: Compressive force, 28: Superconducting cylindrical coil, 61: End plate, 64: Support shaft, 65: S7ter, 66
2-reel frame rotation device, 67: Presser device, 68: Push dog rotating snow equipment, 69: Window, 70: Receiver, 70a = Support part, 71
, 74: Worm wheel, 72: Worm, ? 3.
88.94: W motive, 77: Fulcrum, 78: Link, 79
: Seat, 80=Bolt, 81.82: Guide part, 83: Gear, 84: Ring plate, 85: Small gear, 86=Shaft, 87
: Reduction mechanism, 9Q: o-ra, 91: o-ra receiver, 9
2: Threaded shaft, 93: Gear device〇 1 (2) 2 ? Figure 3' Written amendment of procedure for figure 4 (1993) 1. Incident display Tokugan Sho-, i7/Z, 36δd4
, Agent Address: 1-1 Tanabe Shinden, Kawasaki-ku, Kawasaki Contents of amendment 1, Specification, page 7, line 1 O ``This purpose is'' hereinafter, same page 1
The statement up to line 8, ``that is,'' is corrected as follows. [A basic and principled proposal has been made by Mr. Akira Yamamoto of the High Energy Physics Research Institute as an indicator for achieving this objective. This proposal involves placing a pre-rolled and pre-shaped coil of superconducting wire inside a holding outer cylinder, and pressing the coil against the inside of the outer cylinder to unwind the coil and tightly sealing the superconducting wire to the inside of the outer cylinder. The main feature is that the outer cylinder is used not only as an electromagnetic force support structure but also as a winding frame and a cooling heat transfer body. The present invention realizes the principle concept of Mr. Akira Yamamoto mentioned above.
A direct object of the present invention is to provide a winding method and a winding device that are easy to wind and have a simple structure. According to the invention, this purpose is

Claims (1)

[Claims] 1) An end portion of a temporary coil formed by pre-winding a superconducting wire in a cylindrical shape around a winding frame having a rotating inner cylinder, arranged concentrically on the outside of the inner cylinder. Pass it inside the fixed outer cylinder and fix it.
A plurality of holding rollers that press the outside and periphery of the temporary coil and the transition portion of the temporary filter are held inside the outer cylinder.
One or more guide rollers for guiding, a pressing device that supports these rollers and can rotate in the circumferential direction, and rotates the inner cylinder and the temporary coil to apply a compressive force in the circumferential direction to the transition portion of the temporary coil. While the transition portion of the temporary coil is brought into contact with the guide roller and in close contact with the inside of the outer cylinder, only the holding device is actively rotated in the opposite direction to the rotational direction of the inner cylinder, so that the temporary coil is sequentially attached to the outer cylinder. 2. A method for winding a superconducting cylindrical fill, characterized in that the coil is wound in the form of a superconducting cylindrical fill. A method for winding a superconducting cylindrical coil in which 411i involves fixing the coil to the lower part of the temporary coil, sequentially unwinding it from the lower end of the temporary coil, and winding it from the lower part of the inside of the outer cylinder to the frozen part 03) Claim 1 Or a method for winding a superconducting cylindrical coil according to any one of Item 2, wherein the coil wound inside the outer cylinder is wound in a direction opposite to the winding direction of the temporary coil. 0 4) A temporary film made by winding a superconducting wire in a cylindrical shape in advance around a winding frame having an inner cylinder that can be rotated 14 times is unwound, and the inner cylinder is rolled while applying compressive force in the circumferential direction of the temporary coil. A device for winding a cylindrical fill that is tightly wound inside an outer tube arranged and fixed outside a and reinforced by the outer tube. a winding frame consisting of an inner cylinder and end plates arranged at both ends of the inner cylinder in the axial direction and fixed to the inner cylinder; a support shaft disposed on the axis; moving the shaft in the axial direction to align the lower end surface of the temporary coil with the upper end surface of the coil wound in the outer cylinder; +174-;
The winding frame is rotated around the supporting shaft, the winding frame is rotated around the supporting shaft, the rolling plate is rotated, a plurality of holding rollers are pushed against the outer periphery of the temporary film, and the pressing force of the temporary coil can be adjusted, and the two types of rollers are a presser device that maintains a circumferential distance from each other;
A winding device for a superconducting cylindrical film, characterized in that it is comprised of a front and a rear end for rotating the pusher device around the inner cylinder. 5) Apparatus 1 according to claim 4 (a superconducting cylindrical coil winding apparatus characterized in that a plurality of windows extending in the axial direction are provided in the inner cylinder). 6) # In the device according to claim 40, the lifter is provided with a support shaft, and a support that supports the support shaft so that it can move up and down is provided with a stand, and a lower part of the support shaft is provided integrally with the support shaft. 7) A device for winding a superconducting cylindrical coil, characterized in that the worm wheel comprises a worm wheel and an electric motor connected to an engaging worm. The frame rotation device is connected to a worm wheel fixed to a support shaft and a worm that engages with the worm wheel.
A superconducting cylindrical coil winding device t characterized by comprising a fixed electric motor. 8) l In the device according to claim 4, the pressing device includes a holding device for holding the number of sheets, one to aa guide rollers, and each roller is rotatably supported at one end of the roller. A superconducting cylindrical shape comprising a link whose central part is supported by a fulcrum, a bolt at the other end of the link for pressing, and an identified seat with a threaded part that engages with the bolt. Coil winding device. 9) In the device according to claim 4, the presser rotation device engages with and is guided by the guide portions provided on both end plates of the winding frame in the radial direction, and rotates around the supporting axis of the winding frame. a ring plate-like body with gears cut inside; two pinions that engage with the gears provided inside the winding frame; a shaft connecting the two pinions; A superconducting cylindrical coil winding device characterized by comprising an electric motor that rotates a shaft via a speed reduction mechanism 10) In the device described in claim M4, the temporary coil supporting device is A plurality of rollers that support the lower end surface of the temporary coil, a roller support that supports each roller and has a female thread cut in the axial direction of the winding frame, and is engaged with the female thread and has both ends supported by end plates. A superconducting film winding device 0 characterized by comprising a threaded shaft and an electric motor that rotates the threaded shaft via a gear device.