JPS58130509A - Manufacture of superconducting coil - Google Patents

Abstract

PURPOSE:To permit a superconductor wire to be wound without any slack, by a method wherein a superconductor wire is wound on a flat portion and then, while being pressed against the flat portion, the superconductor wire is wound on a curved surface portion succeeding the flat portion. CONSTITUTION:A superconductor wire 3 is wound on a flat portion F of a winding body 2a of a bobbin 2 and is then wound on a curved surface portion R succeeding the flat portion F. In this case, the superconductor wire 3 is wound on the curved surface portion R in such a way that a support rod 5 is inserted into a support hole 4 and a wedge 6 is forced into between the wire 3 wound on the flat portion F and the support rod 5 in the direction of an arrow B thereby to restrict the movement of the wire 3. After the wire 3 is thus wound around the winding body 2a of the bobbin 2, the wedge 6 previously forced into as well as located in the winding direction and the associated support rod 5 are removed, and the wire 3 is wound on the flat portion F of the winding body 2a from which the corresponding wedge 6 has been removed. Then, the winding operation is continued in the similar manner.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for manufacturing a superconducting coil in which a superconducting wire is wound on a winding drum having a flat portion.

[Technical Background of the Invention] When a superconducting coil generates a high magnetic field by operating a large current, a strong electromagnetic force is applied to the superconducting wire that constitutes the superconducting coil. When the superconducting wire moves due to such electromagnetic force, there is a risk that the superconducting coil will quench due to the generation of frictional heat between the superconducting wires adjacent to each other and heat due to the induced electromotive force. Therefore, when manufacturing superconducting coils,
It is necessary to wind superconducting wires under strong tension and in precise alignment.

[Problems with the Background Art] However, as shown in FIG. 1, in a solenoid-wound superconducting coil in which a superconducting wire 3 is wound on a winding drum 2a having a flat portion F and a curved portion R following the flat portion F, as shown in FIG. , the end face of the bobbin 2 is fixed onto the collar 1 by a fixing port b, and the superconducting material 3 is rolled onto the collar 2a while rotating the collar 1 in the direction of the arrow.

However, in a solenoid-wound superconducting coil formed by winding the superconducting wire 3 onto the winding drum 2a having such a flat portion F, the curved surface portion R after the superconducting wire 3 is wound around the flat portion F of the winding drum 2a. When winding upward, the elasticity of the superconducting wire 3 causes the flat part F to
There was a problem in that the superconducting wire 3 that was lying on top would be lifted up, causing the coil to become loose.

In such a superconducting coil where the superconducting wire 3 is loose,
A solution to this problem that could be easily quenched was desired.

[Purpose of the invention]

The present invention has been made to address this problem, and the flat portion F
It is an object of the present invention to provide a method for manufacturing a superconducting coil in which each superconducting wire 3 can be placed on a winding drum 2a having a winding drum 2a without loosening.

[Ill invention! ! ] That is, the method for manufacturing a superconducting coil of the present invention is to deposit a superconducting coil onto a winding drum 2a having a flat portion F and a curved portion R following the flat portion F.
When winding the wire 3, the superelectric wire 3 is placed onto the flat part F.
After winding the superconducting wire 3, the superconducting wire 3 is pressed onto the flat portion F, and the superconducting wire 3 is moved straight onto the curved portion R following the flat portion F.

Example 1 of the invention The details of the present invention will be explained below.

FIG. 2 is a front view showing an embodiment of the present invention, and FIG. 3 is a cross-sectional view along distance -111 km.

In the 2nd @I, although one side is omitted from the illustration, a winding collar 1 is removably fixed to both end faces of the bobbin 2 by fixing bolts b, and a bobbin 2 is mounted on the collar 1 in parallel with the fixing bolt b. For attachment, a support hole 4 is bored at a position corresponding to the flat part F of the bobbin 2 near the outer periphery. When winding the superconducting wire 3 onto the winding drum 2a of the bobbin 2, one end of the superconducting wire 3 is fixed to a locking part C provided near the outer periphery of the winding collar 1, and the winding collar 1 is moved in the direction of the arrow. The method of winding the superelectric wire 3 onto the winding drum 2a of the bobbin 2 while rotating the bobbin 2 is similar to the conventional method.

Therefore, in this embodiment, the superconducting wire 3 is
After winding onto the flat part F of a, when winding onto the following curved part R, the support rod 5 is inserted into the support hole 4, and the superelectric I wire 3 wound onto the flat part F and the support Press the wedge 6 into the hole of the rod 5 in the direction of arrow B, press the superconducting wire 3 onto the flat part F of the winding drum 2a, and move the superconducting wire 3 onto the curved part R while restraining the superconducting wire 3. Wind wire 3. Similarly, the superelectric I wire 3 is passed onto the next flat part F of the winding drum 28. ! When winding the wire onto the curved surface portion R that follows, the support rod 5 is inserted into the corresponding support hole 4, and a wedge 6 is inserted between the support rod 5 and the superconducting wire 3 wound onto the flat portion F. is press-fitted to press the superconducting wire 3 onto the flat portion F of 81i2a. After the superconducting wire 3 is made to wrap around the winding drum 2a of the bobbin 2 in this way, the wedge 6 and support rod 5 that are press-fitted in the winding direction are removed, and the winding drum 2a from which the wedge 6 is removed is removed. The superconducting wire 3 is wound onto the flat portion F of the superconducting wire 3, and the superconducting wire 3 is then wound onto the winding drum 2a in the same manner.

According to the method of the present invention described above, *Ii! onto the flat part F of the winding drum 2a! With the superconducting wire 3 held down by the wedge 6, the winding of the curved surface R1 following this flat portion F and the flat portion F beyond that is performed, so that the superconducting wire 3 can be wound onto the bobbin 2 without loosening. ．． The wire can be wound onto the winding drum 2a.

Although the method described above uses the wedge 6 as a means for pressing the superelectric wire 3 onto the flat portion F of the winding drum 2a, the present invention is not limited to this embodiment.

For example, as shown in FIGS. 4 and 5, other means may be used to push the superelectric wire 3 onto the flat portion F of the foot WA2.

In addition, in the following drawings, parts common to each figure are indicated by the same reference numerals.

In the embodiment shown in FIG. 4, a holding plate 7 is placed on the superconducting wire 3 wound on the flat part F of the wire 112a, and this holding plate 7 is held down by a bolt 8. This is an example. In the figure, a locking rod 9 is provided at the upper end of the collar 1 to protrude toward the outside of the collar 1, and the locking rod 9 is provided with a frame 12 having bolt holes 10 and guide holes 11.
is locked, and the restraining plate 7 on which the guide rod 13 is protruded,
The guide O-rad 13 is loosely inserted into the guide hole 11 of the frame 12 and placed on the flat part F of the winding drum 2a around which the superconducting wire 3 is wound, and is tightened by the poll lower 8 onto the superconducting wire 3. Pressed.

FIG. 5 shows an embodiment in which the clamping plate 7 is pressed onto the superconducting wire 3 by the elastic force of a spring 14 instead of the bolt 8 in FIG. 4.

In this embodiment, one end of a U-shaped frame 15 having a guide hole 16 is pivotally attached to one of the collars 1, and a restraining part 18 is provided at the tip of the frame 15 to the guide hole 16. The guide rod 17 is loosely inserted, the spring 14 is inserted between the frame 15 and the presser part 18, and the spring 1
The elastic force of 4 presses the holding plate 7 onto the superconducting wire 3. The other end of the frame 15 is removably fixed by a bolt 20 to a fixing part 19 which is fixed to the other collar 1 opposite to the point where the frame 15 is pivotally attached.

The above embodiment is an example in which, when winding the superconducting wire 3 around the bobbin 2, the pressing means is sequentially moved to press the superconducting wire 3 as the superconducting wire 3 is wound from the flat part F to the curved part R. However, this can also be done continuously.

FIG. 6 shows such an embodiment, in which a plurality of retractable pressing rollers 21, which are biased by a spring 14 toward the bobbin 2, are provided on the side facing the flat part F of the winding drum 2a of the bobbin 2. This is an example in which the superconducting wire 3 on the flat portion F is continuously pressed onto the winding drum 2a using a jig 22 protrudingly provided so that the ends of the superconducting wires are arranged in a single character shape. In this embodiment, when the bobbin 2 is rotated in the direction of the arrow, the pressing roller 21 rotates along the winding drum 2a as the superconducting wire 3 is wound, and moves the superconducting wire 3 onto the winding drum 2a of the bobbin 2. It is possible to press the superconducting wire 3 continuously onto the flat portion F of the winding drum 2a.

[Effects of the Invention] As described above, according to the present invention, when winding the superconducting wire on the bobbin, the superconducting wire 3 is rolled onto the flat part F of 11 m 12 a.
Since the superconducting wire 3 can be wound while being pressed, the superconducting wire 3 can be wound precisely onto the bobbin without loosening, and there is no risk that the superconducting wire will move and cause quenching even when operated with a large current. Does not occur.

[Brief explanation of the drawing]

Figure 1 is a front view showing the conventional method of manufacturing superconducting coils;
FIG. 2 is a front view showing one embodiment of the present invention, FIG. 3 is a sectional view taken along line I-I in FIG. 2, and FIGS. 4 and 5 are other embodiments of the present invention. FIG. 6 is a front view showing still another embodiment of the present invention. 1...... Winding brim 2... Bobbin 2a... Winding barrel 3... ......Superconducting wire 4......Support hole 5...Support rod 6...Wedge 7・・・・・・・・・・・・Pressure plate 8・・・・・・・・・Tighten with bolt 9・・・・
...... Locking part 10 ...... Bolt hole 11.16...
・Guide hole 12.15...Frame 13.17...Guide iron 14...Spring 18...
......Retaining part 19...Fixing part 21...Press roller Patent attorney Suyama Sa - (and others) 1 person) Figure 1 Figure 2 Figure 3 Figure 4 Figure 51°71 Figure 6 38

Claims (1)

[Claims] (1) When winding a superconducting wire onto a winding drum having a flat part and a curved part following it, a model superconducting wire obtained by winding the superconducting wire onto the flat part is placed onto the flat part. A method for manufacturing a superconducting coil, which comprises winding the wire onto a curved part following the flat part while pressing the coil.