JPH03284159A - Rotor of superconductive revolving armature and manufacture thereof - Google Patents
Rotor of superconductive revolving armature and manufacture thereofInfo
- Publication number
- JPH03284159A JPH03284159A JP2078776A JP7877690A JPH03284159A JP H03284159 A JPH03284159 A JP H03284159A JP 2078776 A JP2078776 A JP 2078776A JP 7877690 A JP7877690 A JP 7877690A JP H03284159 A JPH03284159 A JP H03284159A
- Authority
- JP
- Japan
- Prior art keywords
- slot
- insulating material
- superconducting
- coil
- field 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000001816 cooling Methods 0.000 claims abstract description 61
- 239000011810 insulating material Substances 0.000 claims abstract description 46
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 238000003754 machining Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 claims description 4
- 229910052734 helium Inorganic materials 0.000 abstract description 22
- 239000001307 helium Substances 0.000 abstract description 22
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 22
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 3
- 230000002265 prevention Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000002887 superconductor Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
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およびその製造方法に関するもので
ある。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a rotor for a superconducting rotating electrical machine, and particularly to a rotor for a superconducting rotating electrical machine that has an improved structure for holding a superconducting field coil on a coil mounting shaft, and the rotor for the superconducting rotating electrical machine. This relates to a manufacturing 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、反駆動側の端部軸て、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）はトルクデユープ（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 this type of superconducting rotating electric machine, there is a rotor shown in FIG. 5, which is disclosed in, for example, Japanese Unexamined Patent Publication No. 18846/1984. In FIG. 5, a superconducting field coil (3) is fixed to a coil mounting shaft (2) forming the center portion of a torque tube (1). A coil is provided with a room temperature damper (4) surrounding the torque tube (1) and the coil mounting shaft (2), 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 periphery and side surface of the mounting shaft (2), respectively. (8) and (9) are respectively supported by bearings (10) at the drive side and non-drive side end shafts. (11) is a slip ring for supplying field current, (12) is a heat exchanger provided in the torque duplex (1), (13) is a side radiation shield, and (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端部軸（９）の中央部から
導入管（図示せず）を通し、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）を通し極低温部に侵入
する熱を極力減らす構造が最も一数的である。さらに、
側面からの輻射により侵入する熱を低減するなめ、側部
輻射シールド（１３）が設けられている。With the above configuration, by cooling the superconducting field coil (3) disposed on the coil mounting shaft (2) to an extremely low temperature, the electrical resistance becomes zero, and excitation loss is eliminated. 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 this superconducting field coil (3) at an extremely low temperature, liquid helium is passed through an introduction pipe (not shown) from the center of the non-drive side end shaft (9), and the helium outer cylinder (6) , the liquid helium is supplied to the liquid helium container formed by the helium end plate (7), while 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 are supplied. The best structure is to make the torque tube (1) that transmits rotational torque to (2) a thin-walled cylinder and provide a heat exchanger (12) to minimize the heat that enters the cryogenic part through this torque tube (1). It is unique.Furthermore,
Side radiation shields (13) are provided to reduce the heat that enters due to radiation from the sides.
一方、常温ダンパ（４）および低温タンパ（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・系統のしよう乱によ
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) shield harmonic magnetic fields from the stator, protect the superconducting field coil (3), and attenuate rotor vibrations caused by power and grid disturbances. In addition to having the function of
also serves as a radiation shield for the helium container. Note that, in FIG. 5, piping constituting a helium introduction/discharge system inside the rotor and a helium introduction/discharge device connected to the rotor are omitted.
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。In addition, the same reference numerals as in FIG. 5 indicate 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（］５）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-A
It is wound around the wire and therefore generates a strong magnetic field with the A-A wire as the pole center. The wedge (5) is driven to firmly hold the superconducting field coil (3) within the slot (18).
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（１
８）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。In addition, in Figures 7 and 8, (21) is the lower insulating spacer, (22) is the slot (1) of the coil mounting shaft (2).
8) and a liquid helium reservoir (not shown) inside the shaft center of the coil mounting shaft (2). In addition, the same reference numerals as in FIGS. 5 and 6 indicate 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
ったアークスロットと、その直線スロットとアークスロ
ットとに連通ずるコー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した形状と
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 straight slot along the shaft surface of the coil mounting shaft (2) in the axial direction, an arc slot along the circumferential direction at both ends of the shaft, and a corner communicating with the straight slot and the arc slot. It consists of a slot. Therefore, the wedge (15) is shaped to match those slots, and after storing the superconducting field coil (3) in the slot (18), the wedge (15) is inserted into the slot (18) and the superconducting field coil is inserted into the slot (18). It 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７図、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（２
３）が挿入され、超電導線（３ａ）の層間には眉間絶縁
（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（３ａ）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）の眉間には層間絶縁（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（３ａ）の短絡防止処理がなさ
れている。Superconducting field coils used in such rotors (3)
For example, there is one disclosed in Japanese Unexamined Patent Publication No. 57-186960, and its structure is shown in FIGS. 7 and 9. In the figure, a superconducting wire (3a) formed by stranding a plurality of superconducting strands or the like is wound in multiple rows and in multiple layers. Between the rows of these superconducting wires (3a), inter-row insulation (2
3) is inserted, and glabellar insulation (24) is inserted between the layers of the superconducting wire (3a). In addition, the superconducting field coil (
3) has one superconducting wire (3a), and inter-row insulation (23) is provided between the rows of the superconducting wire (3a).
The superconducting wire (3a) is wound while inserting interlayer insulation (24) between the eyebrows of 3a), and after being wound, it is treated with epoxy resin and molded to prevent short circuits of the superconducting wire (3a).
［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
ワ１〜（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
皿ひに打ち込み作業に多大の労力を要していた。また、
超電導界磁コイル（３）の冷却がその外周面からしか冷
却されない構造となっており、超電導界磁コイル（３）
内部の超電導線（３ａ）で発熱した場合、超電導線（３
ａ）の熱は列間絶縁（２３）、層間絶縁（２４）、また
他の超電導線（３ａ）を介して熱伝導を経て超電導界磁
コイル（３）外周のヘリウムで冷却されて除去されるこ
とになり、冷却効果が悪く、超電導線（３ａ）の温度が
上昇し、超電導破壊（クエンチ）を生じる問題点があっ
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) has the shape of each part of the throwers 1 to (18). In particular, the shape of the wedges (15) placed at both ends of the coil mounting shaft (2) has a complicated shape, and it takes a lot of effort to manufacture and drive the wedges into countersunks. It required Also,
The structure is such that the superconducting field coil (3) is cooled only from its outer circumferential surface, and the superconducting field coil (3)
If the superconducting wire (3a) inside generates heat, the superconducting wire (3a)
The heat in a) is cooled and removed by helium around the outer periphery of the superconducting field coil (3) through thermal conduction via the inter-column insulation (23), interlayer insulation (24), and other superconducting wires (3a). As a result, there was a problem in that the cooling effect was poor and the temperature of the superconducting wire (3a) rose, causing superconductor breakdown (quenching).
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と共に、冷却効果を高め超電導破
壊を生じることのない超電導回転電機の回転子およびそ
の製造方法を得ることを目的とする。This invention was made to solve the above-mentioned problems, and it is possible to firmly hold the superconducting field coil without requiring much effort, and also to improve the cooling effect and improve the superconducting rotation without causing superconductor destruction. The purpose is to obtain a rotor for electric machinery and a method for manufacturing the same.
［課題を解決するための手段］
この発明の第一の発明に係る超電導回転電機の回転子は
、超電導界磁コイルの超電導線にスパイラル絶縁をスパ
イラル状に巻回し、そのスパイラル絶縁間の空隙に冷却
路を形成し、超電導界磁コツ
イルの外周側に上部絶縁材を配設し、超電導界磁コイル
とコイル取付軸のスロット壁面との間にスロワ１へ内絶
縁材を装着して冷媒の冷却路を形成し、コイル取付軸の
外周側に円筒体を嵌着して上部絶縁材を介して超電導界
磁コイルをスロット内に堅固に保持するようにしたもの
である。[Means for Solving the Problems] A rotor of a superconducting rotating electrical machine according to the first aspect of the present invention has spiral insulation wound around a superconducting wire of a superconducting field coil in a spiral shape, and a space between the spiral insulations. A cooling path is formed, an upper insulating material is placed on the outer circumferential side of the superconducting field coil, and an inner insulating material is attached to the thrower 1 between the superconducting field coil and the slot wall of the coil mounting shaft to cool the refrigerant. A cylindrical body is fitted onto the outer peripheral side of the coil mounting shaft to firmly hold the superconducting field coil within the slot through the upper insulating material.
第二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、このとび出た北部絶縁材に外部がら
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。A method for manufacturing a rotor for a superconducting rotating electric machine according to the second invention includes manufacturing the coil insulating material in advance so as to protrude from the surface of the coil mounting shaft, and fitting a cylindrical body from the outside onto the protruding northern insulating material. Mark a score line on the side circumference of the upper insulating material to indicate that it coincides with the coil mounting outer circumference while applying a load equal to that applied by the coil. The external load applied to the top insulation is then removed, the top insulation is removed from the slot, and the top is machined to the score line location. After that, the upper insulating material is installed into the slot again and the cylindrical body is fitted.
［作用］
第一の発明においては、超電導界磁コイルをスロット内
に嵌着した後、コイル取付軸の外周側に円筒体を嵌着さ
せて超電導界磁コイルをスロット内に堅固に保持する。[Operation] In the first invention, after the superconducting field coil is fitted into the slot, a cylindrical body is fitted onto the outer peripheral side of the coil attachment shaft to firmly hold the superconducting field coil within the slot.
又、各冷却路を冷媒が流通して超電導界磁コイルを冷却
する、
第二の発明においては、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。In addition, in the second invention, in which a refrigerant flows through each cooling path to cool the superconducting field coil, when the cylindrical body is fitted on the outer circumferential side of the coil mounting shaft, the upper insulating material A predetermined surface pressure is applied within a certain accuracy.
［実施例コ
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（つ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
界磁コイルてあり、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）に連通ずる軸方向に延在する冷却路（２８ａ）
と、この冷却路（２８ａ）に連通ずる半径方向の冷却路
（２８ｂ）と、この冷却路（２８ｂ）に連通ずる周方向
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）に連通ずる軸方向の冷却路（２９ｂ）と、
この冷却路（２９ｂ）に連通する周方向の冷却路（２９
ｃ）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） 、 （２９ｂ） 、
＜２９ｅ）を介して連通されている。（３０）は超電導
界磁コイル（２５）とスロワ） （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
（２５）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。[Example 1] Hereinafter, an example of the present invention will be described based on the drawings. In addition, in FIGS. 5 to 9 (the same reference numerals as the cranes indicate the same parts), in FIGS. (25) is a superconducting field coil fitted in the slot (18), and is formed by winding superconducting wires (25a) in multiple rows and in multiple layers.Superconducting field coil (25
) A spiral insulation (26) is wound in a spiral around the superconducting wire (25a), and this spiral insulation (26)
A cooling path (27) is formed in the gap between them. (28)
is a lower insulating material installed between the superconducting field coil (25) and the bottom of the slot (18), and a cooling path (28a) extending in the axial direction communicating with the helium flow hole (22).
A cooling passage (28b) in the radial direction communicating with the cooling passage (28a) and a cooling passage (28c) in the circumferential direction communicating with the cooling passage (28b) are formed, and the cooling passage (27)
and helium flow holes (22) are these cooling passages (28a).
, (28b) and (28c). (29) is an upper insulating material disposed on the outer circumferential side of the superconducting field coil (25), and includes a cooling path (29a) communicating with the cooling path (2a) of the coil mounting shaft (2), and this cooling path. an axial cooling passage (29b) communicating with (29a);
A circumferential cooling path (29) communicating with this cooling path (29b)
c) is formed, and a cooling path (2a) and a cooling path (27
) means these cooling paths (29a), (29b),
<29e). (30) is an insulating material in the slot installed between the superconducting field coil (25) and the thrower (18) wall, and a cooling path (30a) is formed on the superconducting field coil (25) side. There is. The cylindrical body (31) is fitted onto the outer circumferential side of the coil mounting shaft (2), for example, by shrink fitting, and the superconducting field coil (25) installed in the slot (18) is inserted through the upper insulating material (29). and is held firmly within the slot (18).
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
ためのけかき針であり、（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。Next, the assembly procedure will be explained. In Figure 4,
(32) is the upper insulating material (
29) is a scribing needle for marking the outer periphery position of the coil attachment shaft on the side circumference, and (33) is a scribing line on the side periphery of the upper insulating material marked by this scribing needle. (34) is a press device which presses the top of the upper insulating material (29) to apply a predetermined surface pressure.
（２９ｄ）は士１部絶縁材（２９）に予め余分に付加さ
れている機械加工代である。(29d) is the machining allowance added in advance to the first insulating material (29).
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ｆ
ｌ［に上部絶縁材（２９）を配置する。First, a lower insulating material (28) is attached to the bottom of the slot (18) of the coil mounting shaft (2), and an insulating material (30) in the slot is attached to both wall surfaces of the slot (18). Next, superconducting wire (
A superconducting field coil (25) in which a spiral insulator (26) is spirally wound around 25a) is installed in the slot (18). And the outer circumference f of the superconducting field coil (25)
An upper insulating material (29) is placed on the upper insulating material (29).
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 rotational heating.
この回転加熱後、上部絶縁材（２９）の外部ｔこプレ１
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、円筒体く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
６
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（１
８）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。After this rotational heating, an external pressure device (34) is placed on 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 that the upper insulating material (29) receives when the cylindrical body (31) is fitted. Mark a score line (33) on the side circumference of the upper insulating material (29) using a needle (32). Marking lines (
After marking (33), remove the upper insulating material (29) from the slot (18) and perform machining to mark the marking line (33).
) to remove the machining allowance (29d) at the top. Then, insert the upper insulator (29) into the slot (1) again.
8), and then the cylindrical body (31) is attached to the outer periphery of the coil mounting shaft (2) by shrink fitting etc., so that the superconducting field coil (25) is inserted through the upper insulating material (29). and securely held within the slot (18).
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２
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。As described above, by shrink-fitting the cylindrical body (31) to the outer circumferential side of the coil mounting shaft (2), the superconducting field coil (25) can be firmly held within the slot (18). There is no need to use a wedge (15) with such a complicated shape, and there is no need for the manufacturing process and driving work. Further, the conventional mechanism for inserting the wedge (15) into the slot (18) is not required.
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。Furthermore, by omitting the wedge (15), the outer diameter can be reduced by the thickness thereof.
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
。Next, the superconducting wire (25a) of the superconducting field coil (25)
Cooling is performed as follows. Coil mounting shaft (2)
Liquid helium is supplied through the cooling passage (2a) formed on the outer peripheral side of the radial cooling passage (30a) formed by the insulating material (30) in the slot and the upper insulating material (29).
) into the cooling path (29a). The liquid helium that has flowed into the cooling path (29a) flows into the cooling path (29b), passes through the cooling path (29c), and flows into the cooling path (27) formed by spiral insulation (26) in the superconducting wire (25a).
これら冷却路（２７） 、 （３０ａ）を液体ヘリウム
が流通することにより超電導線（２５ａ）が直接冷却さ
れる。The superconducting wire (25a) is directly cooled by flowing liquid helium through these cooling paths (27) and (30a).
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。Liquid helium after cooling the superconducting wire (25a) flows out into the helium flow hole (22) via the cooling paths (28a), (28b), and (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
）を連通ず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）を連通ずる
冷却路であればよい。In the above embodiment, the cooling passages formed in the upper insulating material (29) and the lower insulating material (28) were of various shapes, but the upper insulating material (29) was formed in the cooling passage (2a) and the cooling passage ( 27
) may be a cooling path that communicates with the lower insulating material (28).
may be any cooling path that communicates the cooling path (27) with the helium flow hole (22).
［発明の効果］
以上の説明から明らかなように、この第一の発明は、超
電導界磁コイルの超電導線にスパイラル絶縁をスパイラ
ル状に巻回し、そのスパイラル絶縁間の空隙に冷却路を
形成し、その冷却路が冷媒が流通することにより超電導
線を冷却することができ、冷却効果が向上し、超電導破
壊を生ずることなく信頼性が向上する。またコイル取付
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。[Effects of the Invention] As is clear from the above description, the first invention involves winding spiral insulation in a spiral shape around the superconducting wire of a superconducting field coil, and forming a cooling path in the gap between the spiral insulations. , the superconducting wire can be cooled by the flow of a refrigerant through the cooling path, improving the cooling effect and improving reliability without causing superconductor breakdown. In addition, since the superconducting field coil installed in the slot of the coil mounting shaft is firmly held by the cylindrical body fitted on the outer circumference of the coil mounting shaft, there is no need to use a wedge with a complicated shape. , the manufacturing process and driving work are completely eliminated, and workability is significantly improved, and an excellent economical effect can be obtained.
また、第二の発明は、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クして位
置決めすることとしたので、円筒体の嵌着後の面圧管理
が正確になるという効果が得られる。In addition, in the second invention, the height of the upper insulating material is determined by applying a predetermined load to the top of the upper insulating material and marking it with a scribing needle, so that the surface pressure can be accurately managed after the cylindrical body is fitted. You can get the effect of becoming.
第１図〜第３図は第一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■−■線に沿う平面による断面図である。
第４図は第二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図は縮断面図、第６図は第５図の■−■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■−■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、頁
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、（３
１）・ 円筒体、１″）
（３２）・・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−又は相当部分を示す。1 to 3 show an embodiment of the first invention, FIG. 1 is a cross-sectional view of the main part, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is a partially enlarged view of FIG. 1. It is a cross-sectional view taken along the line ■-■. FIG. 4 is a cross-sectional view of a main part for explaining an embodiment of the second invention. Figures 5 to 9 show the rotor of a conventional superconducting rotating electric machine, with Figure 5 being a reduced cross-sectional view, Figure 6 being a cross-sectional view along the line ■-■ in Figure 5, and Figure 7 being a cross-sectional view taken along the line ■-■ in Figure 5. Partial perspective view, Figure 8 is the 7th
FIG. 9 is a cross-sectional view taken along the line ■-■ in the figure, and FIG. 9 is a partial cross-sectional view. (2) Coil mounting shaft, (2a)...Cooling path, page 18), Slot, (25)...Superconducting field coil, (
25a)...Superconducting wire, (26)...Spiral insulation,
(27) Cooling path, (28) ・Lower insulation material, (29)
...Top insulation material, (30) ...Insulation material in the slot, (3
1)・Cylindrical body, 1″) (32)・・Marking needle, (33)・・・Marking line, (34
)...Press device. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (2)
と、このコイル取付軸に形成されたスロットと、このス
ロット内に装着され超電導線が複数列、複数層巻回され
て形成された超電導界磁コイルとを有する超電導回転電
機の回転子において、上記超電導界磁コイルの超電導線
にスパイラル状に巻回されたスパイラル絶縁と、このス
パイラル絶縁間の空隙に形成された冷却路と、上記超電
導界磁コイルの外周側に配設され、上記コイル取付軸の
冷却路及び上記スパイラル絶縁間の冷却路に連通する冷
却路が形成された上部絶縁材と、上記超電導界磁コイル
と上記スロットの底面との間に装着され上記スパイラル
絶縁間の冷却路に連通した冷却路が形成された下部絶縁
材と、上記超電導界磁コイルと上記スロットの壁面との
間に装着され冷媒の冷却路が形成されたスロット内絶縁
材と、上記コイル取付軸の外周側に嵌着され上記スロッ
ト内に装着された上記超電導界磁コイルを上記上部絶縁
材を介して上記スロット内に堅固に保持する円筒体とを
備えてなることを特徴とする超電導回転電機の回転子。(1) A coil mounting shaft with a refrigerant cooling path formed on the outer periphery, a slot formed in this coil mounting shaft, and a superconducting wire installed in the slot wound in multiple rows and in multiple layers. In a rotor of a superconducting rotating electrical machine having a superconducting field coil, a spiral insulation wound spirally around a superconducting wire of the superconducting field coil, a cooling path formed in a gap between the spiral insulation, an upper insulating material disposed on the outer peripheral side of the superconducting field coil and having a cooling path formed therein that communicates with the cooling path of the coil mounting shaft and the cooling path between the spiral insulation; and the superconducting field coil and the slot. A lower insulating material is installed between the bottom surface of the superconducting field coil and the wall surface of the slot and has a cooling path formed therein that communicates with the cooling path between the spiral insulations. an insulating material in the formed slot, and a cylindrical body that is fitted onto the outer circumferential side of the coil mounting shaft and firmly holds the superconducting field coil installed in the slot in the slot via the upper insulating material. A rotor for a superconducting rotating electric machine, comprising:
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
記上部絶縁材を上記スロット内へ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。(2) In the slot formed on the outer periphery of the coil mounting shaft,
When installing and fixing the superconducting field coil through the upper and lower insulating materials and the insulating material in the slot, the upper insulating material is manufactured in advance so as to protrude from the surface of the coil mounting shaft, and the protruding upper part is While applying an external load to the insulating material equal to that applied by fitting the cylindrical body, mark a scribe line on the side periphery of the upper insulating material to indicate that it coincides with the outer periphery of the coil mounting shaft, and then After the external load applied to the top insulation is removed and the top insulation is removed from the slot, the top part is removed by machining up to the score line, and then the top insulation is removed from the slot again. A method of manufacturing a rotor for a superconducting rotating electric machine, wherein a predetermined surface pressure is applied to the upper insulating material by mounting the cylindrical body into a slot.
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 true JPH03284159A (en) | 1991-12-13 |
| JP2537292B2 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06133532A (en) * | 1992-10-13 | 1994-05-13 | Chodendo Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai | Manufacture of rotor for superconducting electric rotating machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01133563A (en) * | 1987-11-17 | 1989-05-25 | Mitsubishi Electric Corp | Rotor for superconducting rotary electric machine and manufacture thereof |
-
1990
- 1990-03-29 JP JP2078776A patent/JP2537292B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01133563A (en) * | 1987-11-17 | 1989-05-25 | Mitsubishi Electric Corp | Rotor for superconducting rotary electric machine and manufacture thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06133532A (en) * | 1992-10-13 | 1994-05-13 | Chodendo Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai | Manufacture of rotor for superconducting electric rotating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2537292B2 (en) | 1996-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6313556B1 (en) | Superconducting electromechanical rotating device having a liquid-cooled, potted, one layer stator winding | |
| US4462152A (en) | Method of mounting coils on the rotor of a superconductive rotary electric machine | |
| US5347188A (en) | Electric machine with enhanced liquid cooling | |
| US4439701A (en) | Rotor of a superconductive rotary electric machine | |
| JPS6118349A (en) | Rotor of superconductive rotary electric machine | |
| US4442369A (en) | Rotor of a superconductive rotary electric machine | |
| JPH03284159A (en) | Rotor of superconductive revolving armature and manufacture thereof | |
| US4649303A (en) | Rotor for a superconducting rotating electric machine | |
| JP2586068B2 (en) | Rotor of superconducting rotating electric machine and method of manufacturing the same | |
| JP2580637B2 (en) | Rotor of superconducting rotating electric machine and method of manufacturing the same | |
| JP2586067B2 (en) | Rotor of superconducting rotating electric machine and method of manufacturing the same | |
| JPH0750980B2 (en) | Method for manufacturing rotor of superconducting rotating electric machine | |
| JPH02211053A (en) | Rotor of superconducting rotary electric machine and manufacture thereof | |
| JP2779399B2 (en) | Method of manufacturing rotor for superconducting rotating electric machine | |
| JPH01133560A (en) | Rotor for superconducting rotary electric machine and manufacture thereof | |
| JPH01133564A (en) | Rotor for superconducting rotary electric machine and manufacture thereof | |
| JPS605768A (en) | Stator of rotary field type superconductive electric machine | |
| JPS62213546A (en) | Rotor of superconducting rotary electric machine | |
| JPS6118346A (en) | Rotor of superconductive rotary electric machine | |
| JPS62107671A (en) | Rotor for superconducting rotary electric machine | |
| JPS63228959A (en) | Rotor for superconducting rotary electric machine | |
| JPS583564A (en) | Rotor for superconductive rotary electric machine | |
| JPS61273144A (en) | Cylindrical rotor | |
| JPH03284163A (en) | Rotor of superconductive revolving armature | |
| JPS63228958A (en) | Rotor for superconducting rotary electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |