JP3974262B2

JP3974262B2 - Magnetic levitation railway track equipment

Info

Publication number: JP3974262B2
Application number: JP20780498A
Authority: JP
Inventors: 茂也大濱; 好文板橋
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1998-07-23
Filing date: 1998-07-23
Publication date: 2007-09-12
Anticipated expiration: 2018-07-23
Also published as: JP2000041304A

Description

【０００１】
【発明の属する技術分野】
この発明は超電導磁気浮上式鉄道の軌道装置に関し、特に磁気浮上式鉄道の軌道に配置されて、磁気浮上式鉄道用の車両に搭載された超電導磁石装置との間の相互作用により上記車両を浮上させる浮上コイルを備えた磁気浮上式鉄道の軌道装置に関する。
【０００２】
【従来の技術】
図９は例えば、特開平７−１３５７０３号公報に示された磁気浮上式鉄道用の軌道装置を示す断面図、図１０は図９の要部を示す斜視図、図１１は図９の概略の平面を示す図である。図９、図１０および図１１において、１は磁気浮上車両、１ａは車両１の一部を構成する車体、１ｂは車両１の一部を構成する台車、２は台車１ｂに搭載された超電導磁石装置である。軌道装置は車両１が低速で車輪走行される低速走行区間Ａと、低速車輪走行区間Ａに続き車両１が中速で浮上走行される中速走行区間Ｂと、中速走行区間Ｂに続き車両１が高速で浮上走行される高速走行区間Ｃとを備えている。軌道装置は更に浮上コイル３、推進コイル４、軌道５および浮上コイル６を備えている。軌道５は，道床５ａ、道床５ａに形成された走行路５ｂ、道床５ａの側縁から立ち上がった側壁５ｃを備えており、浮上コイル６は高速走行区間Ｃの側壁５ｃに配置されている。また、図１２は浮上コイル３の断面の概要を示した拡大図であり、３ａはコイル導体、３ｂは導体３ａを被覆する絶縁体である。
【０００３】
従来の浮上コイル３は以上のように軌道側壁５ｃに取り付けられており、この状態で車両１が通過すると対向する超電導磁石装置２との相互作用によりコイル３の導体３ａに誘導電流が発生し、その結果車両１を浮上させる浮上力を得ることができる。この浮上力は速度が高い程大きく、通常は１００ｋｍ／ｈ程度以上の中、高速度域で浮上走行を行なっている。この浮上走行の時、導体３ａに誘導される大きな浮上電流による影響で導体３ａは温度上昇するが、絶縁体３ｂの絶縁特性や機械強度の制約からある許容値以下の温度で使用する必要がある。
【０００４】
【発明が解決しようとする課題】
従来の浮上コイル３は以上のように配置されているが、浮上コイル３の背後には超電導磁石装置２との相互作用により車両を推進させる推進コイル４が配置されている。浮上コイル３が厚くなると推進コイル４と超電導磁石装置２の距離が大きくなり、車両１を推進させる推進性能が低下するので浮上コイル３の厚さを大きくすることができず、浮上コイル３の導体３ａの断面寸法を大きくすることができない。このような状態で、車両の走行回数が多くなると導体３ａに作用する各誘導電流の二乗平均値の平方根であるＲＭＳ電流が大きくなり、導体３ａの温度が上記の許容値を上回って使用に耐えることができなくなるという問題点があった。
【０００５】
コイル導体３ａのＲＭＳ電流は車両の通過速度が低い方が大きくなるので浮上開始直後の中速浮上走行区間の方が大きくなり、その結果、浮上開始直後の中速浮上走行区間の方がコイル導体３ａの温度上昇が大きくなる。一方、より高速の浮上走行区間に配置されたコイルの導体６ａのＲＭＳ電流は中速浮上走行区間より小さくなるので導体６ａの温度上昇は導体３ａよりは低い。
【０００６】
すなわち、中速浮上走行区間のコイル３に合わせて導体の寸法を設定すると高速走行区間のコイル６の導体寸法は過大となって、導体を構成する導電材料や絶縁体を構成する絶縁材料を余分に大量に使用する必要があるという問題点があった。
【０００７】
また、推進コイルを外側に押し除けるように配置されるため推進コイル４と超電導磁石装置２との間の距離が大きくなり、推進性能を低下させるという問題点もあった。
【０００８】
あるいは、高速走行区間のコイル６に合わせて導体の寸法を設定すると、中速走行区間ではコイルの導体温度上昇が過大となるので温度上昇を許容値以下に抑えるために、車両の運転間隔を延ばしたり運転本数を減らすことが必要になるという問題点があった。
【０００９】
【課題を解決するための手段】
請求項１記載の発明によれば、磁気浮上式鉄道の軌道の側壁に配置されて、磁気浮上式鉄道用の車両に搭載された超電導磁石装置との間の相互電磁作用により車両を浮上させる側壁浮上コイルと、車両を推進させる推進コイルとを備え、車両が低速で車輪走行される低速走行区間と、低速車輪走行区間に続き車両が中速で浮上走行される中速走行区間と、中速走行区間に続き車両が高速で浮上走行される高速走行区間とを備えた磁気浮上式鉄道の軌道装置において、中速走行区間内の軌道の道床に設置され、車両に搭載された超電導磁石装置との間の相互電磁作用により車両に浮上力を与える道床浮上コイルを備えたことを特徴とする磁気浮上式鉄道の軌道装置が得られる。
【００１０】
請求項２記載の発明によれば、請求項１記載の磁気浮上式鉄道の軌道装置において、側壁浮上コイルが、略口の字状に巻回したコイル導体を８の字状に結線したコイルを絶縁物で被覆した概略平板状のコイルであり、道床浮上コイルが、略口の字状に巻回したコイル導体を絶縁物で被覆したコイルであることを特徴とする磁気浮上式鉄道の軌道装置が得られる。
【００１１】
請求項３記載の発明によれば、請求項１または２記載の磁気浮上式鉄道の軌道装置において、低速車輪走行区間が、２つの本線走行路と、側線走行路と、本線走行路間を接続する第１位置および本線走行路を側線走行路に接続する第２位置間で移動する切替走行路とを備えたことを特徴とする磁気浮上式鉄道の軌道装置が得られる。
【００１２】
請求項４記載の発明によれば、請求項３記載の磁気浮上式鉄道の軌道装置において、切替走行路が本線走行路間を接続する第１位置にあるとき、道床浮上コイルを道床下方に保持し、切替走行路が本線走行路を側線走行路に接続する第２位置にあるとき、道床浮上コイルを道床面に保持する駆動装置を備えたことを特徴とする磁気浮上式鉄道の軌道装置が得られる。
【００１３】
請求項５記載の発明によれば、請求項３記載の磁気浮上式鉄道の軌道装置において、道床浮上コイルを道床よりも下方の格納位置あるいは道床の面と略同じ高さの作動位置に移動して保持する駆動装置と、駆動装置を作動させて、切替走行路が本線走行路間を接続する第１位置にあるとき道床浮上コイルを格納位置に移動させ、切替走行路が本線走行路を側線走行路に接続する第２位置にあるとき道床浮上コイルを作動位置に移動させる制御装置とを備えたことを特徴とする磁気浮上式鉄道の軌道装置が得られる。
【００１４】
請求項６記載の発明によれば、請求項４乃至５のいずれか記載の磁気浮上式鉄道の軌道装置において、道床浮上コイルは、駆動装置に連結されて軌道に沿って延びた可動梁上に設けられてなることを特徴とする磁気浮上式鉄道の軌道装置が得られる。
【００１５】
この発明による磁気浮上式鉄道の軌道装置の浮上コイル配置によれば、浮上走行開始直後の中速浮上走行区間に側壁浮上コイルに加えて道床浮上コイルを配置して、車両を浮上させる浮上力を側壁浮上コイルと道床浮上コイルとで分担できるようにしたため、各浮上コイルの導体に誘導される電流を小さくすることができる。このため、コイル導体に作用するＲＭＳ電流を小さくすることができるのでコイルの温度上昇を小さく抑えることができ、その分車両の運転本数を増やしたり運転間隔を短くする等、車両運行に裕度を持たせることが可能となる。あるいは、小型軽量化を図ることができるため、安価な浮上コイルシステムを備えた磁気浮上式鉄道の軌道装置を提供することができる
【００１６】
【発明の実施の形態】
実施の形態１．
以下、この発明の実施の形態を図面を用いて説明する。図１乃至図３において、磁気浮上式鉄道用の車両１は、車体１ａと、車体１ａを支持する台車１ｂと、台車１ｂに搭載された超電導磁石装置２とを備えている。このような車両１が走行する本発明の磁気浮上式鉄道の軌道装置は、図３に示す如く、車両１が低速（０ｋｍ／ｈ乃至約１００ｋｍ／ｈ）で車輪走行される低速走行区間３１と、低速走行区間３１に続き車両１が中速（約１００ｋｍ／ｈ乃至約２００ｋｍ／ｈ）で浮上走行される中速走行区間３２と、中速走行区間３２に続き車両１が高速（約２００ｋｍ／ｈ以上）で浮上走行される高速走行区間３３とに区分できる軌道５とを備えている。軌道５は、その上を車両１が走行する道床５ａ、道床５ａに形成された走行路５ｂおよび道床５ａの側縁から立ち上がった側壁５ｃを備えている。
【００１７】
軌道装置は更に、軌道５の側壁５ｃに取付けられて車両１に搭載された超電導磁石装置１ｃとの間の相互電磁作用により車両１を磁気的に浮上させる側壁浮上コイル３と、車両１を軌道５に沿って推進させる推進コイル４とを備えている。側壁浮上コイル３も推進コイル４も共に軌道装置の全ての走行区間、即ち低速走行区間３１、中速走行区間３２および高速走行区間３３の側壁５ｃに配置されている。側壁浮上コイル３は、図１２に示す如く、略口の字状に巻回したコイル導体３ａを８の字状に結線してコイルを形成し、これを絶縁物３ｂで被覆した概略平板状のコイル構造のものである。側壁浮上コイル３は軌道に沿って高速走行される車両１を浮上させるのに適度の余裕をもって必要十分に大きな磁気的相互作用力を発生できるよう構成されていて、車両１が十分な速度で運転されてない走行区間（例えば低速走行区間３１あるいは中速走行区間３２）においては必ずしも車両１を安定して十分な高さに磁気浮上させるようには構成されてはいない。
【００１８】
このような側壁浮上コイル３は、図示の例では低速走行区間にも中速走行区間にも設けられているが、これは例えば軌道の途中に中間駅（図示してない）があって、その中間駅に車両１が停車すべき場合にはその両側の軌道を低速走行区間および中速走行区間として使用する必要があるが、中間駅を車両１が通過する場合には車両１の速度は大きくは減速されずに、高速走行のままあるいは中速走行とされて運転されることがあるため、図３の低速走行区間および中速走行区間が高速走行区間としても使用できるようにするためである。
【００１９】
軌道装置は更に、中速走行区間３２内の軌道５の道床５ａに両側の側壁５ｃに沿って並べて配置された多数の道床浮上コイル７を備えている。道床浮上コイル７は、略口の字状に巻回したコイル導体を絶縁物で被覆したコイルであり、図示してないがボルト、楔、スぺーサー等の適当な固定手段を用いて道床５ａに固定されている。道床浮上コイル７は、図示の例では中速走行区間３２だけに設けられていて、この区間３２で側壁浮上コイル３だけによる不十分で不安定な磁気浮上力に付加的な磁気浮上力を与えて、車両１の中速走行中にも安定して十分な高さに磁気浮上させることができるよう構成されている。
【００２０】
本発明の軌道装置によれば、走行区間の全体に亙って側壁浮上コイル３と推進コイル４とが軌道側壁５ｃに取り付けられているので、車両１上の超電導磁石装置２との相互電磁作用により車両１が推進される一方、車両１が通過する際に車両１上の対向する超電導磁石装置２との相互電磁作用により側壁浮上コイル３の導体３ａに誘導電流が発生し、その結果車両１を浮上させようとする磁気的浮上力を得ることができる。この浮上力は、車両１の速度が例えば１００ｋｍ／ｈ以下と小さいときにはそれなりに小さくて、浮上力が浮上走行に必要なほどに充分大きくないため車両１が持つ車輪を使用しなければならない。通常は１００ｋｍ／ｈ程度以上の中速度域および高速度域で浮上力が大きくなり浮上走行を行なうことができる。
【００２１】
車両１が中速走行区間３２を走行しているときには、車両速度が十分でないため側壁浮上コイル３による浮上力だけでは浮上走行が不安定であるが、道床５aに道床浮上コイル７が設置されているので、この道床浮上コイル７と車両１の超電導磁石装置２との間の相互磁気作用による付加的な磁気浮上力を与えられて、車両１の中速走行中にも安定した十分な磁気浮上力が得られる。
【００２２】
車両１が中速走行区間３２から高速走行区間３３に移動すると、車両速度が十分なため側壁浮上コイル３による浮上力だけで安定した浮上走行ができる。
【００２３】
このように、図１乃至図３に示す実施の形態によれば、磁気浮上式鉄道用の車両１に搭載された超電導磁石装置１ｃとの間の相互電磁作用により車両１を浮上させる側壁浮上コイル３と、車両１を推進させる推進コイル４とが軌道５の全長に亙って側壁５ｃに設置されており、車両１が中速で浮上走行される中速走行区間３２内の軌道５の道床５ａには、車両１に搭載された超電導磁石装置１ｃとの間の相互電磁作用により車両１に浮上力を与える道床浮上コイル７が設置されている。側壁浮上コイル３は、略口の字状に巻回したコイル導体３ａを８の字状に結線したコイルを絶縁物３ｂで被覆した概略平板状のコイルであり、道床浮上コイル７は、略口の字状に巻回したコイル導体７ａを絶縁物７ｂで被覆したコイルである。
【００２４】
従って、側壁浮上コイル３が厚くなることがなく、推進コイル４と車両１上の超電導磁石装置２の距離が大きくなり、車両１を推進させる推進性能が低下することもなく、車両の走行回数が多くなっても導体３ａに作用する各誘導電流の二乗平均値の平方根であるＲＭＳ電流が大きくなって導体３ａの温度が上述の許容値を上回って使用できなくなるということがない。また、このようなことから、コイルの導体温度上昇が過大となるので温度上昇を許容値以下に抑えるために、車両の運転間隔を延ばしたり運転本数を減らすことが不必要である。
【００２５】
実施の形態２．
図４は本発明の第２の実施の形態を示すものであり、９は本走行路、１０は側走行路、１１は本走行路９と側走行路１０を離合させる分岐装置であり、他は実施の形態１で示した記号と同じものを示す。
【００２６】
この磁気浮上式鉄道の軌道装置においては、図から明らかな通り、低速車輪走行区間３１が、２つの本線走行路９と、側線走行路１０と、２つの本線走行路９間を接続する位置である第１位置および本線走行路９を側線走行路１０に接続する位置である第２位置間で移動して車両1の走行方向を切り替える切替走行路１１とを備えている。この例では、側線走行路１０から切替走行路１１を通って図で左側の本線走行路９に進入した車両１が浮上走行を開始する区間である中速浮上走行区間３２において、側壁５ｃに配置した第１の実施の態様と同じ側壁浮上コイル（図示せず）が側壁５ｃに設けられているだけでなく、第１の実施の態様と同じ道床浮上コイル７が道床５ａにも配置されている。
【００２７】
実施の形態３．
図５乃至図７はこの発明の第３の実施の形態を示すものであり、例えば図１乃至３に示す道床浮上コイル７が中速浮上走行区間３２の道床面に対して出入りするように構成されている。この実施の形態は、例えば図４に示す実施の態様における如く、低速車輪走行区間３１が、２つの本線走行路９間を接続する位置である第１位置と、本線走行路９を側線走行路１０に接続する位置である第２位置との間で切り替える切替走行路１１を持った軌道装置のように、同じ区間が場合によって中速浮上走行区間３２として使用されたり高速走行区間として使用されるような軌道装置に用いると有用である。
【００２８】
この軌道装置においては、図６および図７に示す如く、道床浮上コイル７は、基礎架台１４上に設置された油圧駆動装置１３に連結されて軌道５に沿って延びた可動梁１２上に設けられている。他の構造は実施の形態１で示したものと同じである。油圧駆動装置１３は、図５のフローチャートに示されるように運転されて、上述の切替走行路１１（図４参照）が２つの本線走行路９の間を接続する第１位置にあるときには、図６に示すごとく道床浮上コイル７を道床５の下方の格納位置に保持する。また、切替走行路１１が本線走行路９を側線走行路１０に接続する第２位置にあるとき、道床浮上コイル７を道床５の表面と略同じ高さ位置に移動させてそこの作動位置（図７）に保持する駆動装置１３を備えている。駆動装置１３の作動は、図示はしてないが切替走行路１１の位置を検出して信号を出す制御装置により制御されて、切替走行路が第１位置にあるときに道床浮上コイルを格納位置に移動させ、切替走行路が第２位置にあるときに道床浮上コイル７を作動位置に移動させるものである。
【００２９】
実施の形態３では、走行路を走行する車両の情報を受けて、車両が本走行路のみを走行する場合は浮上コイル７を配置した可動桁１２を軌道５の下方に格納している（図６の状態）。このようにすることによって、浮上力の不必要な高速走行時に車両の超電導電磁石装置２と浮上コイル７との間の電磁作用によって高速走行時に抵抗となる力が発生しないようにできる。
コイル車両情報が側走行路から本走行路への車両走行の場合には浮上コイル７を配置した可動桁１２を上方に移動させて軌道の道床５ａまで浮上コイル７が上昇するようにしている（図７の状態）。この位置では、浮上コイル７は車両の超電導電磁石装置２との間で浮上力を発生し、さもなければ低速走行時に不足する浮上力を補うことができる。
【００３０】
実施の形態４．
図８はこの発明の第４の実施の形態を示すものであり、１５は電動駆動装置、１６は動力変換装置、１７は可動桁１２の稼動装置であり、他は実施の形態４で示した記号とおなじものを示す。この実施の形態では、可動桁１２の駆動を電動駆動装置１５により行い、動力変換装置１６及び桁稼動装置１７を介して上下に移動するようにしたものである。
【００３１】
【発明の効果】
車両を浮上させる浮上力を側壁に配置した浮上コイル３と道床に配置した浮上コイル７の両方で負担するため、側壁に配置するコイルに発生する電磁力および誘導電流は小さくなるので、導体寸法に起因するコイル厚さを小さくすることができる。このため、推進コイルと超電導磁石装置の間で作用する推進特性を損なうことなく、安価な浮上コイルシステムを提供することができる。
【００３２】
この発明の磁気浮上式鉄道の軌道装置によれば、側走行路から出発する車両本数が比較的多い場合も側壁に配置した浮上コイルのみでは温度上昇が大きくなるので、実施の形態１と同様に道床にもコイルを配置することにより、実施の形態１と同様な効果を得ることができる。
【００３３】
この発明の磁気浮上式鉄道の軌道装置によれば、高速浮上走行の場合は側壁に配置された浮上コイルのみで必要な浮上力を得ることができる構成になっているが、本走行路の道床にもコイルを配置した場合、高速浮上走行で浮上高さが大きい場合でも、ある程度の浮上力を受けることになる。高速走行の場合には特に乗り心地を損なうことになるので、超電導磁石装置の影響の無い所まで浮上コイルを軌道の下方に格納することにより、余分な浮上力を受けることが無く、安定な走行を得ることができる。また、軌道道床のある一定区間に浮上コイルが追加して配置された場合、超電導磁石装置の磁界の影響でこれらの浮上コイルにも渦電流損失が発生し、ブレーキ力として作用することになる。一部の区間のみブレーキ力が作用することになるので、この場合も車両の乗り心地を損なうことになる。これらの実施の形態では、車両が本走行路のみを高速浮上走行する場合の乗り心地を損なうことなく、またブレーキ力として作用する渦電流損失を低減し、エネルギー効率を改善することができる。
【図面の簡単な説明】
【図１】本発明による磁気浮上式鉄道の軌道装置の断面図である。
【図２】図１の軌道の一部を示す斜視図である。
【図３】本発明による磁気浮上式鉄道の軌道装置の概略平面図である。
【図４】本発明による第２の実施の形態の磁気浮上式鉄道の軌道装置の概略平面図。である
【図５】本発明の第３の実施の形態の磁気浮上式鉄道の軌道装置の動作を示すフローチャートである。
【図６】本発明による第３の実施の形態の磁気浮上式鉄道の軌道装置の浮上コイルが作動位置にある状態を示す概略断面図。である
【図７】本発明による第３の実施の形態の磁気浮上式鉄道の軌道装置の浮上コイルが格納位置にある状態を示す概略断面図である。
【図８】本発明による別の実施の形態の磁気浮上式鉄道の軌道装置の概略断面図である。
【図９】従来の磁気浮上式鉄道の軌道装置の概略断面図である。
【図１０】図９の軌道装置の一部を示す斜視図である。
【図１１】従来の磁気浮上式鉄道の軌道装置の概略平面図である。
【図１２】従来の浮上コイルを示す概略断面図である。
【符号の説明】
１磁気浮上式鉄道車両、１ａ車体、１ｂ台車、２超電導磁石装置、３浮上コイル、３ａ浮上コイルの導体、３ｂ浮上コイルの絶縁体、４推進コイル、５軌道、５ａ軌道の道床、５ｂ軌道の走行路、５ｃ軌道の側壁、６浮上コイル、６ａ浮上コイルの導体、７浮上コイル、９本走行路、１０側走行路、１１分岐装置、１２可動桁、１３油圧駆動装置、１４基礎架台、１５電動駆動装置、１６動力変換装置、１７可動桁稼動装置。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a track device for a superconducting magnetic levitation railway, and in particular, the vehicle is levitated by interaction with a superconducting magnet device mounted on a magnetic levitation railway track and mounted on a magnetic levitation railway vehicle. The present invention relates to a track device for a magnetically levitated railway having a levitating coil.
[0002]
[Prior art]
9 is a cross-sectional view showing a track apparatus for a magnetically levitated railway disclosed in, for example, Japanese Patent Application Laid-Open No. 7-135703, FIG. 10 is a perspective view showing a main part of FIG. 9, and FIG. 11 is a schematic view of FIG. It is a figure which shows a plane. 9, 10, and 11, 1 is a magnetically levitated vehicle, 1 a is a vehicle body that forms part of the vehicle 1, 1 b is a carriage that forms part of the vehicle 1, and 2 is a superconducting magnet mounted on the carriage 1 b. Device. The track apparatus includes a low-speed traveling section A in which the vehicle 1 travels on wheels at low speed, a medium-speed traveling section B in which the vehicle 1 floats at medium speed following the low-speed wheel traveling section A, and a vehicle following the medium-speed traveling section B. 1 is provided with a high-speed traveling section C where the vehicle is levitated at high speed. The track device further includes a levitation coil 3, a propulsion coil 4, a track 5 and a levitation coil 6. The track 5 includes a road bed 5a, a running path 5b formed on the road bed 5a, and a side wall 5c rising from a side edge of the road bed 5a. The levitation coil 6 is disposed on the side wall 5c of the high-speed running section C. FIG. 12 is an enlarged view showing an outline of a cross section of the levitation coil 3. 3a is a coil conductor and 3b is an insulator covering the conductor 3a.
[0003]
The conventional levitation coil 3 is attached to the track side wall 5c as described above. When the vehicle 1 passes in this state, an induced current is generated in the conductor 3a of the coil 3 due to the interaction with the opposing superconducting magnet device 2, As a result, it is possible to obtain a levitating force that causes the vehicle 1 to levitate. The levitation force increases as the speed increases, and the levitation force is normally performed at a high speed range of about 100 km / h or higher. During this levitation travel, the temperature of the conductor 3a rises due to the influence of a large levitation current induced in the conductor 3a, but it must be used at a temperature below a certain allowable value due to the insulation characteristics and mechanical strength constraints of the insulator 3b. .
[0004]
[Problems to be solved by the invention]
The conventional levitation coil 3 is arranged as described above, but behind the levitation coil 3, a propulsion coil 4 for propelling the vehicle by interaction with the superconducting magnet device 2 is arranged. If the levitation coil 3 is thicker, the distance between the propulsion coil 4 and the superconducting magnet device 2 is increased, and the propulsion performance for propelling the vehicle 1 is reduced. Therefore, the thickness of the levitation coil 3 cannot be increased, and the conductor of the levitation coil 3 is increased. The cross-sectional dimension of 3a cannot be increased. In such a state, when the number of times of traveling of the vehicle increases, the RMS current, which is the square root of the mean square value of each induced current that acts on the conductor 3a, increases, and the temperature of the conductor 3a exceeds the allowable value and can be used. There was a problem that it was impossible.
[0005]
Since the RMS current of the coil conductor 3a becomes larger when the passing speed of the vehicle is lower, the medium speed levitation travel section immediately after the start of levitation becomes larger. As a result, the middle speed levitation travel section immediately after the start of levitation is greater in the coil conductor. The temperature rise of 3a becomes large. On the other hand, since the RMS current of the coil conductor 6a arranged in the higher-speed levitation travel section is smaller than that in the medium-speed levitation travel section, the temperature rise of the conductor 6a is lower than that of the conductor 3a.
[0006]
That is, if the size of the conductor is set in accordance with the coil 3 in the medium-speed levitation travel section, the conductor dimension of the coil 6 in the high-speed travel section becomes excessive, and there is an excess of the conductive material constituting the conductor and the insulating material constituting the insulator. However, there was a problem that it was necessary to use a large amount.
[0007]
Moreover, since it arrange | positions so that a propulsion coil can be pushed away outside, the distance between the propulsion coil 4 and the superconducting magnet apparatus 2 became large, and there also existed a problem that propulsion performance fell.
[0008]
Alternatively, if the conductor dimensions are set in accordance with the coil 6 in the high-speed traveling section, the coil conductor temperature rises excessively in the medium-speed traveling section. Therefore, in order to suppress the temperature rise below the allowable value, the vehicle operation interval is extended. There was a problem that it was necessary to reduce the number of driving.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, the side wall is arranged on the side wall of the track of the magnetic levitation railway, and the vehicle is levitated by the mutual electromagnetic action between the superconducting magnet device mounted on the magnetic levitation railway vehicle. A low-speed traveling section including a levitation coil and a propulsion coil for propelling the vehicle, a medium-speed traveling section in which the vehicle is levitated at a medium speed following the low-speed wheel traveling section, and a medium speed A magnetic levitation railway track device having a high speed travel section in which a vehicle is levitated at a high speed following the travel section, and a superconducting magnet device installed on the vehicle, installed on the track bed in the medium speed travel section; Thus, a track system for a magnetically levitated railroad is provided, which is provided with a roadbed levitating coil that imparts levitating force to the vehicle by the mutual electromagnetic action between the two.
[0010]
According to the second aspect of the present invention, in the magnetic levitation railway track device according to the first aspect, the side wall levitation coil includes a coil formed by connecting a coil conductor wound in a substantially square shape into an 8-shaped shape. A magnetically levitated railway track device, characterized in that it is a substantially flat coil coated with an insulator, and the roadbed levitating coil is a coil coated with an insulator on a coil conductor wound in a substantially mouth shape. Is obtained.
[0011]
According to a third aspect of the present invention, in the magnetic levitation railway track device according to the first or second aspect, the low-speed wheel traveling section connects the two main line traveling paths, the side line traveling path, and the main traveling path. And a switching travel path that moves between the first position and the second position that connects the main travel path to the side travel path.
[0012]
According to a fourth aspect of the present invention, in the magnetic levitation railway track device according to the third aspect, when the switching travel path is at the first position connecting the main travel paths, the road bed floating coil is placed below the road bed. A magnetic levitation railway track device comprising: a driving device that holds and holds a roadbed floating coil on a roadbed surface when the switching roadway is in a second position where the main road roadway is connected to the sideline roadway Is obtained.
[0013]
According to a fifth aspect of the present invention, in the magnetic levitation railway track device according to the third aspect, the road bed levitation coil is moved to a retracted position below the road bed or an operating position substantially the same height as the surface of the road bed. When the switching travel path is at the first position connecting the main travel paths, the bed bed levitation coil is moved to the retracted position, and the switching travel path is the side line of the main travel path. A magnetic levitation railway track device is provided, comprising: a control device that moves the roadbed levitation coil to the operating position when in the second position connected to the travel path.
[0014]
According to a sixth aspect of the present invention, in the magnetically levitated railway track device according to any one of the fourth to fifth aspects, the roadbed levitating coil is connected to the driving device and extends on the movable beam extending along the track. A track system for a magnetically levitated railway is provided.
[0015]
According to the levitation coil arrangement of the magnetic levitation railway track apparatus according to the present invention, a levitation force is provided to levitate the vehicle by placing a roadbed levitation coil in addition to the side wall levitation coil in the medium speed levitation running section immediately after the start of levitation running. Since the side wall levitation coil and the road bed levitation coil can be shared, the current induced in the conductor of each levitation coil can be reduced. For this reason, since the RMS current that acts on the coil conductor can be reduced, the temperature rise of the coil can be suppressed to a small extent, and the vehicle operation margin is increased by increasing the number of operation of the vehicle and shortening the operation interval. It is possible to have it. Alternatively, since it is possible to reduce the size and weight, it is possible to provide a magnetic levitation railway track device including an inexpensive levitation coil system.
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, a magnetically levitated railway vehicle 1 includes a vehicle body 1a, a carriage 1b that supports the vehicle body 1a, and a superconducting magnet device 2 mounted on the carriage 1b. As shown in FIG. 3, the magnetic levitation railway track device of the present invention in which the vehicle 1 travels includes a low-speed traveling section 31 in which the vehicle 1 travels at a low speed (0 km / h to about 100 km / h). Following the low speed travel section 31, the vehicle 1 is levitated at a medium speed (about 100 km / h to about 200 km / h), and after the medium speed travel section 32, the vehicle 1 is at a high speed (about 200 km / h). h), and a track 5 that can be divided into a high-speed traveling section 33 that is levitated. The track 5 includes a road bed 5a on which the vehicle 1 travels, a running path 5b formed on the road bed 5a, and a side wall 5c rising from a side edge of the road bed 5a.
[0017]
The track device further includes a side wall levitation coil 3 that is attached to the side wall 5c of the track 5 and magnetically levitates the vehicle 1 by a mutual electromagnetic action with the superconducting magnet device 1c mounted on the vehicle 1, and the vehicle 1 is tracked. 5 and a propulsion coil 4 propelled along 5. Both the side wall levitation coil 3 and the propulsion coil 4 are arranged on the side walls 5c of all the traveling sections of the track device, that is, the low speed traveling section 31, the medium speed traveling section 32, and the high speed traveling section 33. As shown in FIG. 12, the side wall levitation coil 3 is formed in a substantially flat plate-like shape in which a coil conductor 3a wound in a substantially square shape is connected in an 8-shape to form a coil, and this is covered with an insulator 3b. It has a coil structure. The side wall levitation coil 3 is configured to generate a sufficiently large magnetic interaction force with an appropriate margin for levitation of the vehicle 1 traveling at a high speed along the track, and the vehicle 1 is operated at a sufficient speed. In a travel section that is not performed (for example, the low speed travel section 31 or the medium speed travel section 32), the vehicle 1 is not necessarily configured to be stably levitated to a sufficient height.
[0018]
Such a side wall levitation coil 3 is provided in both the low speed traveling section and the medium speed traveling section in the illustrated example. For example, there is an intermediate station (not shown) in the middle of the track. When the vehicle 1 is to stop at the intermediate station, it is necessary to use the tracks on both sides thereof as the low-speed traveling section and the medium-speed traveling section. However, when the vehicle 1 passes through the intermediate station, the speed of the vehicle 1 is large. 3 is not slowed down, and may be operated while driving at a high speed or at a medium speed, so that the low speed travel section and the medium speed travel section of FIG. 3 can be used as a high speed travel section. .
[0019]
The track device further includes a large number of roadbed levitation coils 7 arranged side by side along the side walls 5c on both sides of the roadbed 5a of the track 5 in the medium speed traveling section 32. The roadbed floating coil 7 is a coil in which a coil conductor wound in a substantially square shape is covered with an insulator, and although not shown, the roadbed 5a is used by using appropriate fixing means such as a bolt, a wedge, and a spacer. It is fixed to. The roadbed levitating coil 7 is provided only in the medium-speed traveling section 32 in the illustrated example, and in this section 32, an additional magnetic levitation force is given to the insufficient and unstable magnetic levitation force by the side wall levitation coil 3 alone. Thus, the vehicle 1 can be stably levitated to a sufficient height even during the medium speed traveling of the vehicle 1.
[0020]
According to the track device of the present invention, since the side wall levitation coil 3 and the propulsion coil 4 are attached to the track side wall 5c over the entire travel section, the mutual electromagnetic action with the superconducting magnet device 2 on the vehicle 1 is achieved. While the vehicle 1 is propelled by this, an induced current is generated in the conductor 3a of the side wall levitation coil 3 due to the mutual electromagnetic action with the opposing superconducting magnet device 2 on the vehicle 1 when the vehicle 1 passes. As a result, the vehicle 1 It is possible to obtain a magnetic levitation force that attempts to levitate. When the speed of the vehicle 1 is small, for example, 100 km / h or less, this levitation force is small as it is, and the levitation force is not large enough for levitation, so the wheels of the vehicle 1 must be used. Usually, the levitation force becomes large at a medium speed range and a high speed range of about 100 km / h or more, and levitation traveling can be performed.
[0021]
When the vehicle 1 is traveling in the medium speed traveling section 32, the vehicle speed is not sufficient, so that the levitation traveling is unstable only by the levitation force by the side wall levitation coil 3, but the road bed levitation coil 7 is installed on the road bed 5a. Therefore, an additional magnetic levitation force due to the mutual magnetic action between the road bed levitation coil 7 and the superconducting magnet device 2 of the vehicle 1 is given, and sufficient magnetic levitation stable even during the medium speed traveling of the vehicle 1 is achieved. Power is obtained.
[0022]
When the vehicle 1 moves from the medium speed traveling section 32 to the high speed traveling section 33, the vehicle speed is sufficient, so that stable levitation traveling can be performed only with the levitation force by the side wall levitation coil 3.
[0023]
As described above, according to the embodiment shown in FIGS. 1 to 3, the side wall levitation coil that levitates the vehicle 1 by the mutual electromagnetic action with the superconducting magnet device 1c mounted on the vehicle 1 for a magnetic levitation railway. 3 and a propulsion coil 4 for propelling the vehicle 1 are installed on the side wall 5c over the entire length of the track 5, and the roadbed of the track 5 in the medium-speed traveling section 32 where the vehicle 1 floats at medium speed. In 5a, a roadbed levitating coil 7 is provided that applies a levitating force to the vehicle 1 by a mutual electromagnetic action with the superconducting magnet device 1c mounted on the vehicle 1. The side wall levitation coil 3 is a substantially flat coil in which a coil conductor 3a wound in a substantially square shape is connected in an 8-shaped shape and covered with an insulator 3b. This is a coil in which a coil conductor 7a wound in a letter shape is covered with an insulator 7b.
[0024]
Accordingly, the side wall levitation coil 3 is not thickened, the distance between the propulsion coil 4 and the superconducting magnet device 2 on the vehicle 1 is increased, the propulsion performance for propelling the vehicle 1 is not deteriorated, and the number of times the vehicle has traveled is reduced. Even if the number increases, the RMS current, which is the square root of the root mean square value of each induced current acting on the conductor 3a, does not increase and the temperature of the conductor 3a does not exceed the above-described allowable value. Further, because of this, the coil conductor temperature rise becomes excessive, and it is unnecessary to extend the driving interval of the vehicle or reduce the number of driving in order to suppress the temperature rise to an allowable value or less.
[0025]
Embodiment 2. FIG.
FIG. 4 shows a second embodiment of the present invention, wherein 9 is a main traveling path, 10 is a side traveling path, 11 is a branching device that separates the main traveling path 9 and the side traveling path 10, and others. Indicates the same symbols as those in the first embodiment.
[0026]
In this magnetic levitation railway track device, as is apparent from the figure, the low-speed wheel traveling section 31 is located at a position connecting the two main line traveling paths 9, the side line traveling path 10, and the two main line traveling paths 9. There is provided a switching travel path 11 that moves between a certain first position and a second position that is a position connecting the main travel path 9 to the side travel path 10 and switches the travel direction of the vehicle 1. In this example, the vehicle 1 that has entered the main road 9 on the left side of the drawing through the switching road 11 from the side line road 10 is arranged on the side wall 5c in the medium speed levitation road section 32 where the vehicle 1 starts levitation. The same side wall floating coil (not shown) as that of the first embodiment is provided on the side wall 5c, and the same road bed floating coil 7 as that of the first embodiment is also disposed on the road bed 5a. .
[0027]
Embodiment 3 FIG.
FIGS. 5 to 7 show a third embodiment of the present invention. For example, the road bed levitation coil 7 shown in FIGS. 1 to 3 is configured so as to enter and exit the road bed surface of the medium speed levitation travel section 32. Has been. In this embodiment, for example, as in the embodiment shown in FIG. 4, the low-speed wheel traveling section 31 is connected to the first traveling position 9 between the two main traveling paths 9 and the main traveling path 9 is connected to the side traveling path. The same section may be used as a medium-speed levitation traveling section 32 or used as a high-speed traveling section as in the case of a track device having a switching traveling path 11 that switches between a second position that is a position connected to 10. It is useful when used in such a track device.
[0028]
In this track device, as shown in FIGS. 6 and 7, the roadbed levitating coil 7 is connected to a hydraulic drive device 13 installed on the foundation gantry 14 and is provided on a movable beam 12 extending along the track 5. It has been. Other structures are the same as those shown in the first embodiment. When the hydraulic drive device 13 is operated as shown in the flowchart of FIG. 5 and the above-described switching travel path 11 (see FIG. 4) is at the first position connecting the two main travel paths 9, As shown in FIG. 6, the road bed levitation coil 7 is held in the retracted position below the road bed 5. In addition, when the switching travel path 11 is in the second position where the main travel path 9 is connected to the side travel path 10, the road bed levitation coil 7 is moved to substantially the same height as the surface of the road bed 5, and the operation position ( FIG. 7) shows a driving device 13 to be held. Although not shown, the operation of the drive device 13 is controlled by a control device that detects the position of the switching travel path 11 and outputs a signal. When the switching travel path is at the first position, the retracted position of the roadbed floating coil is stored. And when the switching travel path is at the second position, the roadbed floating coil 7 is moved to the operating position.
[0029]
In the third embodiment, in response to information on a vehicle traveling on the traveling road, when the vehicle travels only on the traveling road, the movable girder 12 in which the levitation coil 7 is disposed is stored below the track 5 (see FIG. 6 state). By doing so, it is possible to prevent a force that becomes resistance during high-speed traveling from being generated by the electromagnetic action between the superconducting electromagnet apparatus 2 and the floating coil 7 of the vehicle during high-speed traveling that does not require levitation force.
When the coil vehicle information is vehicle travel from the side travel path to the main travel path, the movable girder 12 on which the levitating coil 7 is arranged is moved upward so that the levitating coil 7 rises to the track bed 5a ( The state of FIG. In this position, the levitation coil 7 generates a levitation force with the superconducting electromagnet apparatus 2 of the vehicle, and can compensate for the levitation force that is insufficient during low-speed traveling.
[0030]
Embodiment 4 FIG.
FIG. 8 shows a fourth embodiment of the present invention, in which 15 is an electric drive device, 16 is a power conversion device, 17 is an operating device for the movable girder 12, and others are shown in the fourth embodiment. Indicates the same symbol. In this embodiment, the movable girder 12 is driven by the electric drive device 15 and moved up and down via the power conversion device 16 and the girder operation device 17.
[0031]
【The invention's effect】
Since the levitation force for levitating the vehicle is borne by both the levitation coil 3 arranged on the side wall and the levitation coil 7 arranged on the road floor, the electromagnetic force and the induced current generated in the coil arranged on the side wall are reduced, so the conductor size is reduced. The resulting coil thickness can be reduced. For this reason, an inexpensive levitation coil system can be provided without impairing the propulsion characteristics acting between the propulsion coil and the superconducting magnet device.
[0032]
According to the magnetic levitation railway track device of the present invention, even when the number of vehicles starting from the side traveling road is relatively large, the temperature rise is increased only by the levitation coil disposed on the side wall, so as in the first embodiment. By arranging the coil on the road bed, the same effect as in the first embodiment can be obtained.
[0033]
According to the magnetic levitation railway track device of the present invention, in the case of high-speed levitation travel, the levitation force required by only the levitation coil disposed on the side wall can be obtained. In addition, when the coil is arranged, even when the flying height is high due to high-speed flying, a certain amount of flying force is received. Riding comfort is particularly impaired when traveling at high speeds. By storing the levitation coil below the track to a place where there is no influence from the superconducting magnet device, there is no extra levitation force and stable travel. Can be obtained. In addition, when a levitation coil is additionally disposed in a certain section of the trackway, eddy current loss occurs in these levitation coils due to the magnetic field of the superconducting magnet device, and acts as a braking force. Since the braking force acts only in a part of the section, the riding comfort of the vehicle is also impaired in this case. In these embodiments, it is possible to improve energy efficiency without impairing the ride comfort when the vehicle travels on the main road only at high speed, and reduce eddy current loss acting as a braking force.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a magnetic levitation railway track device according to the present invention.
FIG. 2 is a perspective view showing a part of the track of FIG. 1;
FIG. 3 is a schematic plan view of a magnetic levitation railway track device according to the present invention.
FIG. 4 is a schematic plan view of a magnetic levitation railway track device according to a second embodiment of the present invention. FIG. 5 is a flowchart showing the operation of the magnetically levitated railway track device according to the third embodiment of the present invention.
FIG. 6 is a schematic cross-sectional view showing a state in which the levitation coil of the track apparatus of the magnetic levitation railway according to the third embodiment of the present invention is in the operating position. FIG. 7 is a schematic cross-sectional view showing a state where the levitation coil of the track system of the magnetic levitation railway according to the third embodiment of the present invention is in the retracted position.
FIG. 8 is a schematic sectional view of a magnetic levitation railway track device according to another embodiment of the present invention.
FIG. 9 is a schematic cross-sectional view of a conventional magnetically levitated railway track device.
10 is a perspective view showing a part of the track device of FIG. 9. FIG.
FIG. 11 is a schematic plan view of a conventional magnetically levitated railway track device.
FIG. 12 is a schematic cross-sectional view showing a conventional levitation coil.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Magnetic levitation type railway vehicle, 1a body, 1b cart, 2 superconducting magnet device, 3 levitation coil, 3a levitation coil conductor, 3b levitation coil insulator, 4 propulsion coil, 5 track, 5a track bed, 5b track Traveling path, 5c Rail side wall, 6 Levitation coil, 6a Levitation coil conductor, 7 Levitation coil, 9 travel paths, 10 side travel path, 11 branching device, 12 Movable girder, 13 Hydraulic drive device, 14 Foundation stand, 15 Electric drive device, 16 power conversion device, 17 movable girder operation device.

Claims

磁気浮上式鉄道の軌道の側壁に配置されて、磁気浮上式鉄道用の車両に搭載された超電導磁石装置との間の相互電磁作用により上記車両を浮上させる側壁浮上コイルと、上記車両を推進させる推進コイルとを備え、上記車両が低速で車輪走行される低速走行区間と、上記低速車輪走行区間に続き上記車両が中速で浮上走行される中速走行区間と、上記中速走行区間に続き上記車両が高速で浮上走行される高速走行区間とを備えた磁気浮上式鉄道の軌道装置において、
上記中速走行区間内の上記軌道の道床に設置され、上記車両に搭載された超電導磁石装置との間の相互電磁作用により上記車両に浮上力を与える道床浮上コイルを備えたことを特徴とする磁気浮上式鉄道の軌道装置。A side wall levitation coil disposed on a side wall of a magnetic levitation railway track and levitating the vehicle by a mutual electromagnetic action with a superconducting magnet device mounted on the magnetic levitation railway vehicle, and propelling the vehicle A low-speed traveling section in which the vehicle travels at low speed on wheels, a medium-speed traveling section on which the vehicle floats at medium speed following the low-speed wheel traveling section, and the medium-speed traveling section. In a magnetic levitation railway track device comprising a high-speed traveling section in which the vehicle is levitated at high speed,
A road bed levitating coil is provided on the track bed of the track in the medium speed traveling section and applies a levitating force to the vehicle by a mutual electromagnetic action with a superconducting magnet device mounted on the vehicle. Magnetic levitation railway track equipment.

上記側壁浮上コイルが、略口の字状に巻回したコイル導体を８の字状に結線したコイルを絶縁物で被覆した概略平板状のコイルであり、上記道床浮上コイルが、略口の字状に巻回したコイル導体を絶縁物で被覆したコイルであることを特徴とする請求項１記載の磁気浮上式鉄道の軌道装置。The side wall levitation coil is a substantially flat coil in which a coil conductor wound in a substantially square shape is connected in an 8-shaped shape with an insulating material, and the road bed levitation coil is substantially square in shape. The track apparatus for a magnetically levitated railway according to claim 1, wherein the coil conductor is a coil in which a coil conductor wound in a shape is covered with an insulator.

上記低速車輪走行区間が、２つの本線走行路と、側線走行路と、上記本線走行路間を接続する第１位置および上記本線走行路を上記側線走行路に接続する第２位置間で移動する切替走行路とを備えたことを特徴とする請求項１または２記載の磁気浮上式鉄道の軌道装置。The low-speed wheel traveling section moves between two main line traveling paths, a side line traveling path, a first position connecting the main line traveling path, and a second position connecting the main line traveling path to the side line traveling path. The track apparatus for a magnetically levitated railway according to claim 1 or 2, further comprising a switching travel path.

上記切替走行路が上記本線走行路間を接続する上記第１位置にあるとき、上記道床浮上コイルを上記道床下方に保持し、上記切替走行路が上記本線走行路を上記側線走行路に接続する上記第２位置にあるとき、上記道床浮上コイルを上記道床面に保持する駆動装置を備えたことを特徴とする請求項３に記載の磁気浮上式鉄道の軌道装置。When the switching travel path is at the first position connecting the main travel paths, the road bed floating coil is held below the road bed, and the switching travel road connects the main travel path to the side travel path. 4. The track apparatus for a magnetically levitated railway according to claim 3, further comprising a driving device that holds the roadbed floating coil on the roadbed surface when in the second position.

上記道床浮上コイルを上記道床よりも下方の格納位置あるいは上記道床の面と略同じ高さの作動位置に移動して保持する駆動装置と、
上記駆動装置を作動させて、上記切替走行路が上記本線走行路間を接続する上記第１位置にあるとき上記道床浮上コイルを上記格納位置に移動させ、上記切替走行路が上記本線走行路を上記側線走行路に接続する上記第２位置にあるとき上記道床浮上コイルを上記作動位置に移動させる制御装置とを備えたことを特徴とする請求項３に記載の磁気浮上式鉄道の軌道装置。A driving device for moving and holding the road bed levitation coil to a retracted position below the road bed or an operating position substantially the same height as the surface of the road bed;
The driving device is operated to move the floating bed floating coil to the retracted position when the switching travel path is in the first position connecting between the main travel paths, and the switching travel path is moved from the main travel path. 4. The track system for a magnetically levitated railway according to claim 3, further comprising a control device that moves the roadbed levitating coil to the operating position when in the second position connected to the side line travel path.

上記道床浮上コイルは、上記駆動装置に連結されて上記軌道に沿って延びた可動梁上に設けられてなることを特徴とする請求項４乃至５のいずれか記載の磁気浮上式鉄道の軌道装置。The track device for a magnetically levitated railway according to any one of claims 4 to 5, wherein the roadbed levitating coil is provided on a movable beam connected to the driving device and extending along the track. .