JP2779400B2 - Method of manufacturing superconducting coil device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a superconducting coil device, and more particularly to a method for manufacturing a superconducting coil device for assembling a superconducting coil on a coil mounting shaft.

[0002]

2. Description of the Related Art Conventionally, as this type of superconducting coil device, there is a superconducting coil device used in a rotor of a superconducting generator described in Japanese Patent Laid-Open No. 61-18343, for example. This will be described with reference to FIGS.

FIG. 4 is a perspective view showing an example of a coil mounting shaft in a conventional superconducting coil device, FIG. 5 is a sectional view taken along line V--V in FIG. 4, FIG. 6 is a plan view of the superconducting coil, and FIG. FIG. 8 is a perspective view of a rectangular temporary winding frame, FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 7, and FIG. 9 is a perspective view showing the superconducting coil removed from the temporary winding frame.

In the drawing, reference numeral 1 denotes a cylindrical coil mounting shaft,
Reference numeral 2 denotes a slot formed in the cylindrical coil mounting shaft 1. The slot 2 includes a straight portion 2a, an arc portion 2b, and a corner portion 2c. 3 is slot 2
4 are wedges for fixing the superconducting coil 3 in the slot 2, 5 is wedge insulation, and 6 is insulation. Here, the superconducting coil 3 includes a superconducting wire 7 around which an interlayer insulation 8 is wound. 9 is a rectangular temporary winding frame.

[0005] In order to assemble the superconducting coil 3 configured as described above on the coil mounting shaft 1, first, the superconducting wire 7 on which the interlayer insulation 8 is wound is wound around a temporary winding frame 9 in a plurality of rows and a plurality of layers. By removing the superconducting coil 3 from the frame 9, as shown in FIG. 9, a superconducting coil 3 wound in a plurality of rows and a plurality of layers in a rectangular shape composed of straight portions 3a and 3b and corner portions 3c is obtained. Next, the straight portion 3b of the superconducting coil 3 is bent along the arc portion 2b of the slot 2 and shaped into a coil shape as shown in FIG. 3, and the inside of the slot 2 having wedge insulation 6 and insulation 5 disposed on the inner wall surface. Is inserted into the superconducting coil 3. Thereafter, wedge insulation 6 is arranged on the outer peripheral surface of superconducting coil 3, wedge 4 is attached, and superconducting coil 3 is attached to coil attaching shaft 1.

In this way, the superconducting coil 3 composed of the superconducting wire 7 around which the interlayer insulation 8 is wound is wound around the coil mounting shaft 1 in a plurality of rows and a plurality of layers to form a superconducting field coil.

[0007]

As described above, the conventional method for manufacturing a superconducting coil device removes the superconducting coils 3 wound on the rectangular temporary winding frame 9 in plural rows and plural layers from the temporary winding frame 9. , Since it is inserted into the slot 2 of the coil mounting shaft 1, it is necessary to bend the straight portion 3 b of the superconducting coil 3 along the arc portion 2 b of the slot 2, which requires a great deal of labor for winding work. There were challenges. In addition, it is necessary to change the dimensions of each layer of the superconducting coil 3, and there is a problem that the manufacturing cost of the temporary winding frame 9 increases. Furthermore, the dimensions of the temporary winding frame 9 and the winding accuracy around the temporary winding frame 9 cause the coil shape after being incorporated into the slot 2 to be uneven, so that the padding such as the wedge insulation 5 and the insulation 6 does not enter or loosen. Therefore, there is a problem that the interlayer insulation 8 is damaged.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has improved the dimensional accuracy of a superconducting coil, thereby firmly holding the coil, and improving the reliability of interlayer insulation.
An object of the present invention is to provide a method of manufacturing a superconducting coil device capable of efficiently performing winding work.

[0009]

According to a method of manufacturing a superconducting coil device according to the present invention, an outer peripheral side has an edge portion having an L-shaped cross section.
And the L-shaped part of the temporary winding body on the inner peripheral side.
Cooperates with the edge of the U-shaped cross section to form a coil winding
A temporary saddle-shaped reel with detachable side plates
Assembling and winding the insulated superconducting wire into the coil
Wrap multiple rows and multiple layers around the winding part , and then remove the inner side plate.
The superconducting coil formed by winding the superconducting wires in plural rows and plural layers is removed from the inner peripheral side of the temporary winding frame main body , and then the superconducting coil is placed in a slot, and the superconducting coil is assembled on a coil mounting shaft. It is.

[0010]

In the present invention, a superconducting coil is manufactured by winding a plurality of insulated superconducting wires around a saddle-shaped temporary winding frame in a plurality of layers and a plurality of layers. The coil is dimensioned with high precision so that it can be inserted into a slot formed in the outer peripheral portion of the coil mounting shaft without bending and shaping the portion.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a perspective view of a temporary winding frame in a method of manufacturing a superconducting coil device according to an embodiment of the present invention, and FIG.
3 is a perspective view of the superconducting coil detached from the temporary winding frame in the method of manufacturing a superconducting coil device according to one embodiment of the present invention, and FIG. 4 to FIG. The same or corresponding parts as those in the conventional method of manufacturing a superconducting coil device shown in FIG. In the figure, reference numeral 10 denotes a saddle-shaped temporary winding frame formed in the shape of a slot 2 formed on the outer peripheral portion of the coil mounting shaft 1, and this temporary winding frame 10 has an L-shaped cross section.
And a temporary winding frame main body 10a on the outer peripheral side having
It is tightened and fixed to the inner peripheral side of the main body 10a by the mounting bolt 12.
And a coil having a U-shaped cross section cooperating with an edge of the L-shaped cross section.
And an inner peripheral side plate 10b constituting the winding portion 11.
Have been.

In the above embodiment, first, the superconducting wire 7 around which the interlayer insulation 8 is wound is wound on the coil of the saddle-shaped temporary winding frame 10 .
A plurality of rows and a plurality of layers are wound around the winding portion 11 while being bent and shaped. Then, the mounting bolts 12 are removed, and the inner peripheral side plate is removed.
10b is removed from the temporary winding frame main body 10a, the temporary winding frame 10 is disassembled, and the superconducting coil 3 formed by winding the superconducting wires 7 in a plurality of rows and a plurality of layers is pulled from the inner peripheral side of the temporary winding frame main body 10a.
Take out and remove. At this time, the superconducting coil 3 is shaped into a coil shape in which the straight portion 3b is curved, as shown in FIG. Next, the superconducting coil 3 is inserted into the slot 2 in which the wedge insulation 6 and the insulation 5 are arranged on the inner wall surface.
Thereafter, the wedge insulation 6 is arranged on the outer peripheral surface of the superconducting coil 3, the wedge 4 is further attached, and the superconducting coil 3 is attached to the coil attaching shaft 1. Thus, the interlayer insulation 8
Are wound around the coil mounting shaft 1 in a plurality of rows and a plurality of layers to form a superconducting field coil.

As described above, according to the above embodiment, the outer peripheral side
The inner peripheral side plate 10b can be attached to and detached from the temporary winding frame main body 10a.
To a coil winding portion 11 of a temporary winding frame 10 having a saddle shape adapted to the shape of the slot 2 of the coil mounting shaft 1
The superconducting wire 7 to the interlayer insulating 8 is wound turned a predetermined number of columns and number of layers Vol subsequently decomposing the temporary winding frame 10 by removing the side 10b, taken from the inner circumferential side of the temporary winding frame body 10a <br / The superconducting coil 3 formed by winding out the superconducting wires 7 in a plurality of layers and a plurality of layers is inserted into the slot 2 of the coil mounting shaft 1, so that the superconducting coil obtained by removing the superconducting coil 3 from the temporary winding frame 10 is obtained. In the coil 3, the dimensions of the straight portions 3a, 3b and the corner portions 3c are precisely formed without bending and shaping the straight portion 3b, so that the time and labor required for assembling the coil mounting shaft 1 can be greatly reduced. Can be firmly fixed by padding even after assembling to the coil mounting shaft, preventing damage to interlayer insulation and improving reliability.

[0014]

As described above, according to the present invention, the inner circumferential side
Is a temporary winding frame main body having an edge of an L-shaped cross section,
And cooperate with the edge of the L-shaped cross section of the temporary winding body.
Removably attach the side plate that constitutes the coil winding part of the surface
Assembled saddle-shaped temporary winding frame, and insulated superconducting wire
A plurality of rows in the coil windings of provisional reel by turning a plurality of layers wound, then the inner peripheral side and remove the side plate superconducting wire multiple rows of the inner periphery of the superconducting coil formed by wound multiple layers wound temporary winding frame body ~ side
And then put the superconducting coil in the slot and assemble the superconducting coil on the coil mounting shaft, so the dimensional accuracy of the coil shape of the superconducting coil is improved, and the superconducting coil can be firmly mounted on the coil mounting shaft. Thus, there is an effect that a method of manufacturing a superconducting coil device that can improve the reliability of interlayer insulation and significantly improve the workability of winding work can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a temporary winding frame in a method of manufacturing a superconducting coil device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a perspective view of the superconducting coil removed from the temporary winding frame in the method for manufacturing a superconducting coil device according to one embodiment of the present invention.

FIG. 4 is a perspective view showing an example of a coil mounting shaft in a conventional superconducting coil device.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is a plan view showing an example of a conventional superconducting coil.

FIG. 7 is a perspective view showing an example of a temporary winding frame in a conventional method for manufacturing a superconducting coil device.

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7;

FIG. 9 is a perspective view showing a superconducting coil detached from a temporary winding frame in a conventional method for manufacturing a superconducting coil device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Coil mounting shaft 2 Slot 2a Linear part 2b Arc part 3 Superconducting coil 7 Superconducting wire 8 Interlayer insulation 10 Temporary winding frame 10a Temporary winding frame main body 10b Side plate 11 Coil winding part

Claims (1)

(57) [Claims] To 1. A within a slot having a linear portion formed on the outer peripheral portion and the arc portion of the coil mounting shaft, a plurality of rows of superconducting coils, the method of manufacturing a superconducting coil apparatus comprising turning a plurality of layers wound, the outer peripheral side Temporary winding with L-shaped cross-section edge
An edge of the L-shaped cross section of the temporary winding frame main body on the inner peripheral side as a frame main body.
Side plate that forms a coil winding part with a U-shaped cross section in cooperation with the part
Assemble a saddle-shaped temporary winding frame with detachably attached
A plurality of insulated superconducting wires are wound around the coil winding part of the temporary winding frame in a plurality of layers, and then the side plate on the inner peripheral side is removed.
The superconducting coil formed by winding the superconducting wires in plural rows and plural layers is removed from the inner peripheral side of the temporary winding frame main body, and then the superconducting coil is placed in the slot, and the superconducting coil is placed in the coil. A method of manufacturing a superconducting coil device, wherein the method is assembled on a mounting shaft.