JP2537292B2 - Method for manufacturing rotor of superconducting rotating electric machine - Google Patents

Method for manufacturing rotor of superconducting rotating electric machine

Info

Publication number
JP2537292B2
JP2537292B2 JP2078776A JP7877690A JP2537292B2 JP 2537292 B2 JP2537292 B2 JP 2537292B2 JP 2078776 A JP2078776 A JP 2078776A JP 7877690 A JP7877690 A JP 7877690A JP 2537292 B2 JP2537292 B2 JP 2537292B2
Authority
JP
Japan
Prior art keywords
insulating material
upper insulating
slot
superconducting
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2078776A
Other languages
Japanese (ja)
Other versions
JPH03284159A (en
Inventor
靖弘 永田
幸治 三尾
雅夫 芝丸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chodendo Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai
Original Assignee
Chodendo Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chodendo Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai filed Critical Chodendo Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai
Priority to JP2078776A priority Critical patent/JP2537292B2/en
Publication of JPH03284159A publication Critical patent/JPH03284159A/en
Application granted granted Critical
Publication of JP2537292B2 publication Critical patent/JP2537292B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

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  • Superconductive Dynamoelectric Machines (AREA)

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、超電導回転電機の回転子、特に、超電導
界磁コイルをコイル取付軸に保持する構造を改良した超
電導回転電機の回転子の製造方法に関するものである。
The present invention relates to a rotor for a superconducting rotating electric machine, and more particularly to a rotor for a superconducting rotating electric machine having an improved structure for holding a superconducting field coil on a coil mounting shaft. It is about the method.

[従来の技術] 従来この種の超電導回転電機の回転子として、例えば
特開昭61−18846号公報に開示された第5図に示すもの
があった。第5図において、トルクチューブ(1)の中
央部を形成するコイル取付軸(2)に超電導界磁コイル
(3)が固定されている。トルクチューブ(1)とコイ
ル取付軸(2)を囲繞して常温ダンパ(4)、この常温
ダンパ(4)とコイル取付軸(2)の間に低温ダンパ
(5)がそれぞれ設けられているコイル取付軸(2)の
それぞれ外周部および側面部はヘリウム外筒(6)およ
びヘリウム端板(7)が取付けられている。(8)およ
び(9)はそれぞれ駆動側、反駆動側の端部軸で、軸受
(10)に支承されている。(11)は界磁電流供給用のス
リップリング、(12)はトルクチューブ(1)に設けら
れている熱交換器、(13)は側部輻射シールド、(14)
は真空部である。
[Prior Art] Conventionally, as a rotor of a superconducting rotary electric machine of this type, for example, there is one shown in Fig. 5 disclosed in JP-A-61-18846. In FIG. 5, the superconducting field coil (3) is fixed to the coil mounting shaft (2) forming the central portion of the torque tube (1). A coil which surrounds the torque tube (1) and the coil mounting shaft (2) and is provided with a room temperature damper (4) and a low temperature damper (5) between the room temperature damper (4) and the coil mounting shaft (2). A helium outer cylinder (6) and a helium end plate (7) are attached to the outer peripheral portion and the side surface portion of the mounting shaft (2), respectively. (8) and (9) are end shafts on the driving side and the non-driving side, respectively, which are supported by a bearing (10). (11) is a slip ring for supplying a field current, (12) is a heat exchanger provided in the torque tube (1), (13) is a side radiation shield, (14)
Is a vacuum section.

以上の構成により、コイル取付軸(2)に配設されて
いる超電導界磁コイル(3)を極低温に冷却することに
より、電気抵抗を零の状態とし、励磁損失をなくすこと
により、この超電導界磁コイル(3)に強力な磁界を発
生させ、固定子(図示せず)に交流電力を発生させる。
この超電導界磁コイル(3)を極低温に冷却、保持する
ために液体ヘリウムを反駆動側部軸(9)の中央部から
導入管(図示せず)を通じ、ヘリウム外筒(6)、ヘリ
ウム端板(7)により形成される液体ヘリウム容器部に
供給する一方、回転子内部を真空部(14)により高真空
に保つと共に、極低温の超電導界磁コイル(3)および
コイル取付軸(2)に回転トルクを伝えるトルクチュー
ブ(1)を薄肉円筒とし、かつ、熱交換器(12)を設
け、このトルクチューブ(1)を通じ極低温部に侵入す
る熱を極力減らす構造が最も一般的である。さらに、側
面からの輻射により侵入する熱を低減するため、側部輻
射シールド(13)が設けられている。
With the above configuration, the superconducting field coil (3) arranged on the coil mounting shaft (2) is cooled to an extremely low temperature to bring the electric resistance to zero and eliminate the excitation loss. A strong magnetic field is generated in the field coil (3), and AC power is generated in the stator (not shown).
In order to cool and maintain the superconducting field coil (3) at an extremely low temperature, liquid helium is introduced from a central portion of the anti-drive side shaft (9) through an introduction pipe (not shown) to the helium outer cylinder (6) and helium. While supplying to the liquid helium container part formed by the end plate (7), the inside of the rotor is kept in a high vacuum by the vacuum part (14), and the cryogenic superconducting field coil (3) and the coil mounting shaft (2) are provided. The most common structure is that the torque tube (1) for transmitting the rotational torque is a thin cylinder and a heat exchanger (12) is provided to reduce the heat entering the cryogenic part through this torque tube (1). is there. Further, a side radiation shield (13) is provided in order to reduce heat entering by radiation from the side surface.

一方、常温ダンパ(4)および低温ダンパ(5)は、
固定子からの高調波磁界をシールドし、超電導界磁コイ
ル(3)を保護するとともに、電力系統のじょう乱によ
る回転子振動を減衰させる機能を有するに加え、常温ダ
ンパ(4)は真空外筒としての機能、低温ダンパ(5)
はヘリウム容器部への輻射シールドとしての機能を兼ね
ている。なお、第5図においては、回転子内部のヘリウ
ム導入、排出系を構成する配管類および回転子に接続さ
れているヘリウム導入、排出装置は省略している。
On the other hand, the room temperature damper (4) and the low temperature damper (5) are
In addition to having the function of shielding the harmonic magnetic field from the stator, protecting the superconducting field coil (3), and attenuating the rotor vibration due to the disturbance of the power system, the room temperature damper (4) is a vacuum outer cylinder. Function, low temperature damper (5)
Also functions as a radiation shield for the helium container. In FIG. 5, the helium introduction / exhaust device connected to the helium introduction / exhaust system piping and the rotor is omitted in FIG.

次に、第6図において、(15)は楔、(18)はコイル
取付軸(2)の表面に軸方向に形成されたスロット、
(19)はスロット内絶縁スペーサ、(20)は上部絶縁ス
ペーサである。
Next, in FIG. 6, (15) is a wedge, (18) is a slot formed in the axial direction on the surface of the coil mounting shaft (2),
(19) is an insulating spacer in the slot, and (20) is an upper insulating spacer.

その他、第5図におけると同一符号は同一部分であ
る。
The same reference numerals as those in FIG. 5 denote the same parts.

この構成において、超電導界磁コイル(3)は、A−
A線を取り巻くように巻回されており、従って、A−A
線を極中心として強力な磁界を発生する。楔(15)は超
電導界磁コイル(3)をスロット(18)内に堅固に保持
するように打ち込まれている。
In this configuration, the superconducting field coil (3) is A-
It is wound so as to surround the A line, and therefore A-A
A strong magnetic field is generated with the line as the pole center. The wedge (15) is driven into the slot (18) to securely hold the superconducting field coil (3).

また、第7図、第8図において、(21)は下部絶縁ス
ペーサ、(22)はコイル取付軸(2)のスロット(18)
とコイル取付軸(2)の軸心内部の液体ヘリウムの液溜
め部(図示せず)とに連通して設けられたヘリウム流通
孔である。その他、第5図、第6図と同一符号は同一部
分である。
7 and 8, (21) is a lower insulating spacer, (22) is a slot (18) of the coil mounting shaft (2).
And a helium flow hole provided in communication with a liquid helium liquid reservoir (not shown) inside the axis of the coil mounting shaft (2). In addition, the same reference numerals as those in FIGS. 5 and 6 are the same parts.

スロット(18)は、コイル取付軸(2)の軸表面に軸
方向に沿った直線スロットと、軸両端部で円周方向に沿
ったア−クスロットと、その直線スロットとア−クスロ
ットとに連通するコ−ナスロットとからなっている。し
たがって、楔(15)はそれらスロットに応じた形状と
し、スロット(18)内に超電導界磁コイル(3)を収納
した後、スロット(18)に楔(15)を挿着して超電導界
磁コイル(3)を堅固に保持している。
The slot (18) includes a linear slot along the axial direction on the surface of the coil mounting shaft (2), arc slots along the circumferential direction at both ends of the shaft, and the linear slot and the arc slot. And a corner slot that communicates with. Therefore, the wedge (15) has a shape corresponding to the slots, the superconducting field coil (3) is housed in the slot (18), and then the wedge (15) is inserted into the slot (18) to attach the superconducting field coil. Holds the coil (3) firmly.

このような回転子に使用される超電導界磁コイル
(3)としては、例えば特開昭57−186960号公報に開示
されたものがあり、その構成を第9図に示す。図におい
て、複数の超電導素線を撚り線等により成形された超電
導線(3a)は、複数列、複数層巻回されている。これら
超電導線(3a)の列間には列間絶縁(23)が挿入され、
超電導線(3a)の層間には層間絶縁(24)が挿入されて
いる。なお、超電導界磁コイル(3)は、超電導線(3
a)を1本持ちで、かつ、超電導線(3a)の列間には列
間絶縁(23)を、超電導線(3a)の層間には層間絶縁
(24)をそれぞれ挿入しながら巻回し、巻回後はエポキ
シ樹脂で処理してモールド状に成形され、超電導線(3
a)の短絡防止処理がなされている。
As a superconducting field coil (3) used for such a rotor, there is one disclosed in, for example, Japanese Patent Laid-Open No. 186960/1982, and its construction is shown in FIG. In the figure, a superconducting wire (3a) formed by twisting a plurality of superconducting element wires is wound in a plurality of rows and a plurality of layers. Inter-row insulation (23) is inserted between the rows of these superconducting wires (3a),
Interlayer insulation (24) is inserted between the layers of the superconducting wire (3a). In addition, the superconducting field coil (3) is
a) and has a row of superconducting wires (3a) with inter-row insulation (23) between the rows and superconducting wires (3a) with inter-layer insulation (24) inserted between them. After winding, it is treated with epoxy resin to be molded into a superconducting wire (3
The short-circuit prevention process of a) is performed.

[発明が解決しようとする課題] 以上のような従来の超電導回転電機の回転子では、超
電導界磁コイル(3)を堅固に保持する楔(15)はスロ
ット(18)の各部の形状に応じた形状とする必要があ
り、特に、コイル取付軸(2)の軸両端部に配置された
楔(15)の形状は複雑な形状となり、その製作加工並び
に打ち込み作業に多大の労力を要しているという問題点
があった。
[Problems to be Solved by the Invention] In the rotor of the conventional superconducting rotating electric machine as described above, the wedge (15) that firmly holds the superconducting field coil (3) depends on the shape of each part of the slot (18). In particular, the wedges (15) arranged at both ends of the coil mounting shaft (2) have complicated shapes, and a great deal of labor is required for manufacturing and driving them. There was a problem that

この発明は上記のような問題点を解消するためになさ
れたもので、多大の労力を要することなく超電導界磁コ
イルを堅固に保持できる超電導回転電機の回転子の製造
方法を得ることを目的とする。
The present invention has been made to solve the above problems, and an object thereof is to obtain a method of manufacturing a rotor of a superconducting electric rotating machine that can firmly hold a superconducting field coil without requiring a great deal of labor. To do.

[課題を解決するための手段] この発明に係る超電導回転電機の回転子の製造方法
は、予めコイル絶縁材がコイル取付軸表面よりとび出す
ように製作しておき、このとび出た上部絶縁材に外部か
ら円筒体の嵌着によって加わるに等しい荷重を与えた状
態で上部絶縁材の側周にコイル取付外周と一致すること
を示すけがき線をマーキングする。その後上部絶縁材に
加えられている外部荷重を取除き、上部絶縁材をスロッ
トから取外した後、その上部をけがき線位置まで機械加
工する。その後、再び上部絶縁材をスロット内へ装着し
て円筒体を嵌着する。
[Means for Solving the Problem] In the method for manufacturing a rotor of a superconducting rotary electric machine according to the present invention, the coil insulating material is manufactured in advance so as to protrude from the surface of the coil mounting shaft, and the protruding upper insulating material is used. A marking line is marked on the side circumference of the upper insulating material to indicate that it coincides with the outer circumference of the coil mounting under a load equal to that applied by the fitting of the cylinder from the outside. After that, the external load applied to the upper insulating material is removed, the upper insulating material is removed from the slot, and then the upper portion is machined to the marking line position. Then, the upper insulating material is mounted again in the slot and the cylindrical body is fitted.

[作用] この発明においては、円筒体をコイル取付軸外周側に
嵌着すると、上部絶縁材には設計的に意図された所定の
面圧が一定の精度以内で印加される。
[Operation] In the present invention, when the cylindrical body is fitted on the outer peripheral side of the coil mounting shaft, a predetermined surface pressure intended by design is applied within a certain accuracy to the upper insulating material.

[実施例] 以下、この発明の一実施例を図に基づいて説明する。
なお、第5図〜第9図におけると同一符号は同一部分で
ある。第1図〜第3図において、コイル取付軸(2)の
外周部に液体ヘリウムの冷却路(2a)が形成されてい
る。(25)はスロット(18)内に嵌着された超電導界磁
コイルであり、超電導線(25a)が複数列、複数層巻回
されて形成されている。超電導界磁コイル(25)の超電
導線(25a)にはスパイラル状にスパイラル絶縁(26)
が巻回され、このスパイラル絶縁(26)間の空隙に冷却
路(27)が形成されている。(28)は超電導界磁コイル
(25)とスロット(18)の底面との間に装着された下部
絶縁材であり、ヘリウム流通孔(22)に連通する軸方向
に延在する冷却路(28a)と、この冷却路(28a)に連通
する半径方向の冷却路(28b)と、この冷却路(28b)に
連通する周方向の冷却路(28c)が形成されており、冷
却路(27)とヘリウム流通孔(22)とはこれら冷却路
(28a),(28b),(28c)を介して連通されている。
(29)は超電導界磁コイル(25)の外周側に配設された
上部絶縁材であり、コイル取付軸(2)の冷却路(2a)
に連通する冷却路(29a)と、この冷却路(29a)に連通
する軸方向の冷却路(29b)と、この冷却路(29b)に連
通する周方向の冷却路(29c)が形成されており、冷却
路(2a)と冷却路(27)とはこれら冷却路(29a),(2
9b),(29c)を介して連通されている。(30)は超電
導界磁コイル(25)とスロット(18)壁面との間に装着
されたスロット内絶縁材であり、超電導界磁コイル(2
5)側に冷却路(30a)が形成されている。円筒体(31)
は、コイル取付軸(2)の外周側に例えば焼嵌めにより
嵌着され、スロット(18)内に装着された超電導界磁コ
イル(25)を上部絶縁材(29)を介してスロット(18)
内に堅固に保持している。
[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
The same symbols as those in FIGS. 5 to 9 are the same parts. 1 to 3, a cooling passage (2a) for liquid helium is formed on the outer peripheral portion of the coil mounting shaft (2). Reference numeral (25) is a superconducting field coil fitted in the slot (18), and the superconducting wire (25a) is formed by winding a plurality of rows and a plurality of layers. The superconducting wire (25a) of the superconducting field coil (25) is spirally spirally insulated (26).
Is wound, and a cooling path (27) is formed in the space between the spiral insulations (26). Reference numeral (28) is a lower insulating material mounted between the superconducting field coil (25) and the bottom surface of the slot (18), and is an axially extending cooling path (28a) communicating with the helium flow hole (22). ), A radial cooling passage (28b) communicating with the cooling passage (28a), and a circumferential cooling passage (28c) communicating with the cooling passage (28b) are formed, and the cooling passage (27) And the helium flow hole (22) communicate with each other through these cooling paths (28a), (28b), (28c).
(29) is an upper insulating material arranged on the outer peripheral side of the superconducting field coil (25), and is a cooling path (2a) of the coil mounting shaft (2).
A cooling path (29a) communicating with the cooling path (29a), an axial cooling path (29b) communicating with the cooling path (29a), and a circumferential cooling path (29c) communicating with the cooling path (29b). The cooling passage (2a) and the cooling passage (27) are connected to the cooling passages (29a), (2
It is connected via 9b) and (29c). (30) is an insulating material inside the slot mounted between the superconducting field coil (25) and the wall surface of the slot (18).
A cooling path (30a) is formed on the 5) side. Cylindrical body (31)
Is a superconducting field coil (25) fitted into the outer periphery of the coil mounting shaft (2) by, for example, shrink fitting, and the superconducting field coil (25) mounted in the slot (18) is inserted through the upper insulating material (29) into the slot (18).
Holds firmly inside.

次に、組立て手順について説明する。第4図におい
て、(32)は円筒体(31)を嵌着する前に上部絶縁材
(29)の側周にコイル取付軸外周位置をマーキングする
ためのけがき針であり、(33)はこのけがき針によって
マーキングされた上部絶縁材側周上のけがき線である。
(34)はプレス装置であって上部絶縁材(29)の頂部を
押して所定の面圧を与える。(29d)は上部絶縁材(2
9)に予め余分に付加されている機械加工代である。
Next, the assembling procedure will be described. In FIG. 4, (32) is a marking needle for marking the outer peripheral position of the coil mounting shaft on the side circumference of the upper insulating material (29) before fitting the cylindrical body (31), and (33) is The marking line on the side of the upper insulating material marked by this marking needle.
Reference numeral (34) is a pressing device for applying a predetermined surface pressure by pushing the top portion of the upper insulating material (29). (29d) is the upper insulation (2
It is a machining allowance that is added in advance to 9).

まず、コイル取付軸(2)のスロット(18)の底面に
下部絶縁材(28)、スロット(18)の両壁面にスロット
内絶縁材(30)を装着する。次いで、超電導線(25a)
にスパイラル絶縁(26)をスパイラル状に巻回した超電
導界磁コイル(25)をスロット(18)内に装着する。そ
して超電導界磁コイル(25)の外周側に上部絶縁材(2
9)を配置する。
First, the lower insulating material (28) is attached to the bottom surface of the slot (18) of the coil mounting shaft (2), and the in-slot insulating material (30) is attached to both wall surfaces of the slot (18). Next, superconducting wire (25a)
A superconducting field coil (25) in which a spiral insulation (26) is spirally wound is installed in the slot (18). Then, on the outer peripheral side of the superconducting field coil (25), the upper insulating material (2
9) Place.

スパイラル絶縁(26)の樹脂の硬化は回転加熱により
行われる。
The resin of the spiral insulation (26) is cured by rotary heating.

この回転加熱後、上部絶縁材(29)の外部にプレス装
置(34)を置き、上部絶縁材(29)に荷重を与える。こ
の荷重はプレス装置(34)によって自由に調整可能であ
り、円筒体(31)を嵌着したときに上部絶縁材(29)が
受ける面圧と等しくなるように設定する。
After this rotation heating, the press device (34) is placed outside the upper insulating material (29) to apply a load to the upper insulating material (29). This load can be freely adjusted by the press device (34) and is set to be equal to the surface pressure received by the upper insulating material (29) when the cylindrical body (31) is fitted.

次に、けがき針(32)を用いて上部絶縁材(29)の側
周にけがき線(33)をマーキングする。けがき線(33)
のマーキング後、上部絶縁材(29)をスロット(18)か
ら取外して機械加工を行い、けがき線(33)により上部
にある機械加工代(29d)の部分を削り取る。その後、
再び上部絶縁材(29)をスロット(18)内に嵌着し、続
いて円筒体(31)を焼嵌等によってコイル取付軸(2)
の外周に装着することにより、超電導界磁コイル(25)
を上部絶縁材(29)を介してスロット(18)内に堅固に
保持する。
Next, a scribe line (33) is marked on the side circumference of the upper insulating material (29) using a scribe needle (32). Scribing line (33)
After marking, the upper insulating material (29) is removed from the slot (18) for machining, and the scribing line (33) is used to scrape off the upper machining allowance (29d). afterwards,
The upper insulating material (29) is fitted into the slot (18) again, and then the cylindrical body (31) is shrink-fitted to the coil mounting shaft (2).
Superconducting field coil (25)
Is firmly held in the slot (18) through the upper insulating material (29).

以上のように円筒体(31)をコイル取付軸(2)の外
周側に焼嵌めにより嵌着することによって超電導界磁コ
イル(25)をスロット(18)内に堅固に保持できるの
で、従来のような形状の複雑な楔(15)を全く使用しな
くてよく、その製作加工並びに打ち込み作業が皆無とな
る。また、従来の楔(15)をスロット(18)内に挿着す
るための機構も不要となる。さらに、楔(15)を省略し
たことにより、その厚さ寸法分、外径を小さくすること
ができる。
Since the superconducting field coil (25) can be firmly held in the slot (18) by shrink-fitting the cylindrical body (31) on the outer peripheral side of the coil mounting shaft (2) as described above, It is not necessary to use the complicated wedge (15) having such a shape at all, and there is no manufacturing work and driving work. Further, the conventional mechanism for inserting the wedge (15) into the slot (18) is not required. Further, by omitting the wedge (15), the outer diameter can be reduced by the thickness dimension.

次に、超電導界磁コイル(25)の超電導線(25a)の
冷却は次のようにして行われる。コイル取付軸(2)の
外周側に形成した冷却路(2a)を通じて液体ヘリウムが
供給され、スロット内絶縁材(30)によって形成された
半径方向の冷却路(30a)と上部絶縁材(29)の冷却路
(29a)に流入する。冷却路(29a)に流入した液体ヘリ
ウムは冷却路(29b)に流入して冷却路(29c)を経て超
電導線(25a)にスパイラル絶縁(26)により形成した
冷却路(27)に流入する。これら冷却路(27),(30
a)を液体ヘリウムが流通することにより超電導線(25
a)が直接冷却される。超電導線(25a)を冷却した後の
液体ヘリウムは、冷却路(28a),(28b),(28c)を
経てヘリウム流通孔(22)に流出する。
Next, the superconducting wire (25a) of the superconducting field coil (25) is cooled as follows. Liquid helium is supplied through the cooling passage (2a) formed on the outer peripheral side of the coil mounting shaft (2), and the radial cooling passage (30a) formed by the in-slot insulating material (30) and the upper insulating material (29) Flows into the cooling passage (29a) of. The liquid helium that has flowed into the cooling path (29a) flows into the cooling path (29b), passes through the cooling path (29c), and then flows into the cooling path (27) formed by the spiral insulation (26) in the superconducting wire (25a). These cooling channels (27), (30
When liquid helium flows through a), the superconducting wire (25
a) is directly cooled. The liquid helium after cooling the superconducting wire (25a) flows out to the helium flow hole (22) through the cooling paths (28a), (28b), (28c).

なお、上記実施例では上部絶縁材(29)、下部絶縁材
(28)に形成した冷却路は種々の形状のものとしたが、
上部絶縁材(29)は冷却路(2a)と冷却路(27)を連通
する冷却路であればよく、下部絶縁材(28)は冷却路
(27)とヘリウム流通孔(22)を連通する冷却路であれ
ばよい。
Although the cooling paths formed in the upper insulating material (29) and the lower insulating material (28) have various shapes in the above embodiment,
The upper insulating material (29) may be any cooling path that connects the cooling path (2a) and the cooling path (27), and the lower insulating material (28) may connect the cooling path (27) and the helium flow hole (22). Any cooling path will do.

[発明の効果] 以上の説明から明らかなように、この発明は、コイル
取付軸のスロット内に装着された超電導界磁コイルをコ
イル取付軸の外周側に嵌着した円筒体により堅固に保持
するようにしたので、複雑な形状の楔を全く使用しなく
てよく、その製作加工並びに打ち込み作業が皆無とな
り、作業性が著しく向上すると共に経済的にも優れた効
果が得られる。また、上部絶縁材の高さは、その頂部に
所定の荷重を与えてけがき針によってマーキングして位
置決めすることとしたので、円筒体の嵌着後の面圧力管
理が正確になると共に、円筒体とコイル取付軸との中心
線不一致を防止できる効果も得られる。
EFFECTS OF THE INVENTION As is clear from the above description, the present invention firmly holds the superconducting field coil mounted in the slot of the coil mounting shaft by the cylindrical body fitted to the outer peripheral side of the coil mounting shaft. As a result, it is not necessary to use a wedge having a complicated shape at all, and there is no manufacturing work and driving work, so that workability is remarkably improved and an excellent economical effect is obtained. Further, the height of the upper insulating material is determined by marking with a scribing needle by applying a predetermined load to the top of the upper insulating material, so that the surface pressure control after fitting of the cylindrical body becomes accurate, and at the same time, the cylindrical body can be controlled. It is also possible to obtain the effect of preventing the center line mismatch between the coil mounting shaft and the coil mounting shaft.

【図面の簡単な説明】[Brief description of drawings]

第1図〜第3図はこの発明の一実施例を示し、第1図は
要部横断面図、第2図は第1図の一部拡大図、第3図は
第1図のIII−III線に沿う平面による断面図である。 第4図はこの発明の一実施例を説明するための要部横断
面図である。 第5図〜第9図は従来の超電導回転電機の回転子を示
し、第5図は縦断面図、第6図は第5図のVI−VI線に沿
う平面による断面図、第7図は一部斜視図、第8図は第
7図のVIII−VIII線に沿う平面による断面図、第9図は
一部断面図である。 (2)……コイル取付軸、(2a)……冷却路、(18)…
…スロット、(25)……超電導界磁コイル、(25a)…
…超電導線、(26)……スパイラル絶縁、(27)……冷
却路、(28)……下部絶縁材、(29)……上部絶縁材、
(30)……スロット内絶縁材、(31)……円筒体、(3
2)……けがき針、(33)……けがき線、(34)……プ
レス装置。 なお、各図中、同一符号は同一又は相当部分を示す。
1 to 3 show an embodiment of the present invention. FIG. 1 is a transverse cross-sectional view of a main part, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is III- of FIG. It is sectional drawing by the plane which follows the III line. FIG. 4 is a cross-sectional view of a main part for explaining an embodiment of the present invention. 5 to 9 show a rotor of a conventional superconducting rotating electric machine, FIG. 5 is a longitudinal sectional view, FIG. 6 is a sectional view taken along a plane along the line VI-VI in FIG. 5, and FIG. FIG. 8 is a partial perspective view, FIG. 8 is a sectional view taken along a plane along the line VIII-VIII in FIG. 7, and FIG. 9 is a partial sectional view. (2) …… Coil mounting shaft, (2a) …… Cooling path, (18)…
… Slot, (25) …… Superconducting field coil, (25a)…
… Superconducting wire, (26)… Spiral insulation, (27)… Cooling path, (28)… Lower insulation material, (29)… Upper insulation material,
(30) …… Insulator in slot, (31) …… Cylinder, (3
2) …… Scribe needle, (33) …… Scribe line, (34) …… Pressing device. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】コイル取付軸の外周部に形成されたスロッ
トに、上部、下部絶縁材およびスロット内絶縁材を介し
て超電導界磁コイルを装着固定するに際し、予め上記上
部絶縁材が上記コイル取付軸の表面よりとび出るように
製作しておき、このとび出た上記上部絶縁材に外部から
円筒体の嵌着によって加わるに等しい荷重を与えた状態
で上記上部絶縁材の側周に上記コイル取付軸の外周と一
致することを示すけがき線をマーキングし、その後、上
記上部絶縁材に加えられている外部荷重を取除いて上記
上部絶縁材を上記スロットから取外した後、その上部を
上記けがき線位置まで機械加工により削除し、その後、
再び上記上部絶縁材を上部スロット内に装着して上記円
筒体を装着することにより上記上部絶縁材に所定の面圧
を印加する超電導回転電機の回転子の製造方法。
1. When mounting and fixing a superconducting field coil in a slot formed on an outer peripheral portion of a coil mounting shaft through an upper insulating material, a lower insulating material and an insulating material in the slot, the upper insulating material is previously attached to the coil. The coil mounting shaft is manufactured so that it protrudes from the surface of the shaft, and a load equal to that applied from the outside by the fitting of the cylindrical body is applied to the protruding upper insulating material on the side circumference of the upper insulating material. Marking a marking line indicating that it matches the outer circumference of the above, then removing the external load applied to the upper insulating material and removing the upper insulating material from the slot, Delete to the line position by machining, then
A method for manufacturing a rotor of a superconducting rotary electric machine, wherein the upper insulating material is mounted in the upper slot again and the cylindrical body is mounted to apply a predetermined surface pressure to the upper insulating material.
JP2078776A 1990-03-29 1990-03-29 Method for manufacturing rotor of superconducting rotating electric machine Expired - Fee Related JP2537292B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2078776A JP2537292B2 (en) 1990-03-29 1990-03-29 Method for manufacturing rotor of superconducting rotating electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2078776A JP2537292B2 (en) 1990-03-29 1990-03-29 Method for manufacturing rotor of superconducting rotating electric machine

Publications (2)

Publication Number Publication Date
JPH03284159A JPH03284159A (en) 1991-12-13
JP2537292B2 true JP2537292B2 (en) 1996-09-25

Family

ID=13671306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2078776A Expired - Fee Related JP2537292B2 (en) 1990-03-29 1990-03-29 Method for manufacturing rotor of superconducting rotating electric machine

Country Status (1)

Country Link
JP (1) JP2537292B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2779399B2 (en) * 1992-10-13 1998-07-23 三菱電機株式会社 Method of manufacturing rotor for superconducting rotating electric machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2586068B2 (en) * 1987-11-17 1997-02-26 三菱電機株式会社 Rotor of superconducting rotating electric machine and method of manufacturing the same

Also Published As

Publication number Publication date
JPH03284159A (en) 1991-12-13

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