JP4060477B2

JP4060477B2 - Overhead running system

Info

Publication number: JP4060477B2
Application number: JP02499899A
Authority: JP
Inventors: 佳延石川; 正宗像; 則人黒川
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1999-02-02
Filing date: 1999-02-02
Publication date: 2008-03-12
Anticipated expiration: 2019-02-02
Also published as: JP2000224725A

Description

【０００１】
【発明の属する技術分野】
本発明は、送電線、配電線および通信線等の架線に吊り下げられた状態で走行し、たとえば架線、架線周辺および架線付帯設備を保守・点検するための架線走行システムに関する。
【０００２】
【従来の技術】
送電線、配電線および通信線等の架線は、一般にその架設場所の地形に従い、また建築物などを避けるために鉄塔に掛け渡される。このため架線は鉄塔を折れ点にして、左右上下に折り曲げて架設されることがある。
【０００３】
このような架線の保守・点検に使用される架線走行装置（例えば特開平３−８９８０５号に記載の高架線移動装置）においては、例えば架線を懸下する鉄塔などの構造物において、架線走行装置は迂回路となる補助軌道を携帯し、その補助軌道を操作するための動作軸が数多く設けられている。そして、鉄塔を通過する時には、複数の動作軸を動作させて、折れ曲がる架線に対応して補助軌道を渡しかけて、補助軌道の上を迂回しながら次の架線に乗り移り、連続的に架線の点検走行ができるようになっていた。
【０００４】
一方、鉄道に沿って架設される配電線や給電線では、急峻な折れ曲がりはなく、最大でも５度程度であり、更に保守・点検のときに損傷区間が凡そわかっている場合もある。したがって、このような場合には電線の折れ曲がりに対応する動作軸がなくても、小型、軽量で架線への乗せ換えが容易な架線走行装置が望まれている。
【０００５】
このような要請に応えるために、発明者らは先に特開平４−３３４９１３号公報に示すような架線走行装置を提案しており、以下にその概要を述べる。
【０００６】
この架線走行装置は、装置本体に設けた前後及び中間の３つの駆動輪で架線を交互に挟んで吊り下げられた状態で走行するもので、装置本体の姿勢制御用のバランサを用いて障害部分を通過する。
【０００７】
例えば、送電線に使用される懸垂碍子などのような架線の支持設備などによる障害部分を通過して走行するには、バランサを動かして重心を移動し、架線に対する釣合い姿勢を変えて走行し、架線走行装置を螺旋運動させて３つの駆動輪は順次一輪ずつ障害物の逆側を避けて通る。この架線走行装置は動作軸数が少なく軽量小型であり、鉄道に沿って架設される配電線や給電線など、急峻な折れ曲がりのない架線においては懸垂碍子などの障害物を回避通過できる。
【０００８】
【発明が解決しようとする課題】
ところで、架線走行装置が走行する架線が市街地の配電線の場合、配電線は送電線のように径が太くはなく、平行して走る隣の電線および架空地線との距離が近い。そして、市街地の配電線は架線の支持点において、折れ曲がっていたり、分岐していたりする。
【０００９】
しかるに、従来の架線走行装置（特開平３−８９８０５号に記載の高架線移動装置）においては、架線を懸下する支持点における折れ曲がりやＴ字分岐に対応して乗り移りできるものの、動作軸数が多いため小型化軽量化は難しい。
【００１０】
また、架線走行装置の重さに対比して電線径が細いので弛みが大きく、近くの電線との短絡が心配である。
【００１１】
さらに、従来の架線走行装置（特開平４−３３４９１３号）は動作軸数が少なく軽量小型であるが、急峻な折れ曲がりやＴ字分岐のある架線においては、障害物を避けて通ることができないという問題があった。
【００１２】
本発明は上記のような問題を解消するため、架線を懸下する鉄塔などの構造物、あるいは架線に、架線走行装置が走行する迂回路など最小限度の付帯設備を取付けることを許容し、動作軸数が非常に少ない軽量小型な構成でありながら、架線の支持点での折れ曲がりやＴ字分岐などの分岐点を自在な方向に乗り移りできる架線走行システムを提供することを目的とする。
【００１３】
【課題を解決するための手段】
請求項１に対応する発明は、架線に懸下されて走行する一方、架線を懸下する構造物及び走行の障害箇所に対しては迂回するようにして設けられた補助手段に懸下されて走行する架線走行装置を有する架線走行システムであって、前記補助手段は、前記迂回の経路の前記構造物に予め取り付けられ、少なくともその一部では厚さが異なる補助レールで構成し、前記架線走行装置は、前後端に前記架線を挟み込んで走行するための上下に対向して設けられた駆動輪と、この各駆動輪に取り付けられ、前記補助レールを挟み込んで走行させるための補助レール車輪と、前記各駆動輪及び前記各補助レール車輪とを回転支持すると共に、前記上下に対向する各駆動輪及び前記各補助レール車輪との各間隔を自在として対応する架線、あるいは補助レールのいずれかを挟み込み可能とする挟み込み機構と、この挟み込み機構を支持すると共に、前記各駆動輪及び前記各補助レール車輪に回転力を伝える駆動部が取付けられた車台本体と、この車台本体に取付けられ前記架線回りに旋回させ、旋回方向にある前記補助レールを挟み込むように前記車台本体と一緒に所望の補助レール側へ姿勢制御をするバランサ及び旋回駆動源を有する旋回機構とを設け、前記補助レール車輪は前記補助レールとの噛み合い部の形状を谷型として前記補助レール車輪の噛み合い半径が前記補助レールの厚さに応じて異なるように形成し、前記架線走行装置の走行速度と走行推進力との関係を可変にしたものである。
【００１４】
このような構成の架線走行システムによれば、架線を懸下する鉄塔などの構造物において、左右に分岐する２つの迂回路がある場合、バランサを揺動して架線まわりの姿勢を制御し、架線に対して補助レール車輪を左右いずれか所望の補助レール側に回転させて所望の側の架線に繋がる迂回路を選択し、架線の支持点での折れ曲りやＴ字分岐を自在方向に乗り移りできる。しかも、架線走行装置は姿勢制御用のバランサを１軸追加しただけで、動作軸数が非常に少ない軽量小型な構成とすることができる。特に、架線走行装置が走行する架線が市街地の配電線の場合でも隣の電線及び架空地線との離間距離を確保でき、障害物を全て回避できるので、点検作業などの効率を向上させることができる。しかも、架線走行装置の走行速度と走行推進力との関係が可変になるので、架線走行装置が補助レールを移動する時に走行速度を落して走行推進力をあげることができ、急傾斜の補助レールを登坂できる。
【００１６】
また、補助レールの厚さにより補助レール車輪の谷型形状の噛み合い部への食い込み量は異なるので、補助レール車輪の噛み合い半径を変えることができる。
【００１７】
請求項２に対応する発明は、請求項１に対応する発明の架線走行システムにおいて、前記補助レール車輪に回転力を伝える前記駆動部の前後に振り分ける部分にデファレンシャルギヤを設けて、前後の前記補助レール車輪の噛み合い半径が異なっていても平均した走行速度となるように構成したものである。
【００１８】
このような構成の架線走行システムによれば、前後の補助レール車輪の噛み合い半径が異なっていても駆動部のデファレンシャルギヤにより平均した走行速度となるので、前後の補助レール車輪のいずれにおいても、補助レールに対する滑りがなくなる。
【００１９】
請求項３に対応する発明は、架線に懸下されて走行する一方、架線を懸下する構造物及び走行の障害箇所に対して迂回するようにして設けられた補助手段に懸下されて走行する架線走行装置を有する架線走行システムであって、前記補助手段は、前記迂回の経路の前記構造物に予め取付けられた補助レールで構成し、前記架線走行装置は、前後端に前記架線を挟み込んで走行するための上下に対向して設けられた駆動輪と、この各駆動輪に取付けられ、前記補助レールを挟み込んで走行するための補助レール車輪と、前記各駆動輪及び前記各補助レール車輪を回転支持すると共に、前記上下に対向する各駆動輪及び前記各補助レール車輪との各間隔を自在として対応する架線、あるいは補助レールのいずれかを挟み込み可能とする挟み込み機構と、この挟み込み機構を支持すると共に、前記各駆動輪及び前記各補助レール車輪に回転力を伝える駆動部が取付けられた車台本体と、この車台本体に取付けられ前記架線回りに旋回させ、旋回方向にある前記補助レールを挟み込むように前記車台本体と一緒に所望の補助レール側へ姿勢制御をするバランサ及び旋回駆動源を有する旋回機構とを設け、前記架線走行装置は、前記各駆動輪の鍔の脇にそれぞれ設けられ、挟み付ける側に復元ばねを設けて前記挟み込み機構により並進自在に支持されたソリ形状ガイドと、このソリ形状ガイドの縁辺に沿って循環自在な循環ベルト及び前記支持部品により前記復元ばねの復元力に抗して前記ソリ形状ガイドが押し広げられると前記駆動輪の駆動力を前記循環ベルトに伝達する伝達機構とを具備したものである。
【００２０】
このような構成の架線走行システムによれば、架線が単純な支持部品で支持され、且つ手前の架線と乗り移る架線とが直線的な鉄塔や電柱など構造物においては駆動輪の鍔の脇に取付けたソリ形状ガイドを支持部材の上を滑らせて、順次乗り越えることができる。なお、急峻な折れ曲がりまたは分岐を有する架線を懸下する鉄塔など構造物と、架線が単純に踏み越えできないような支持形態の鉄塔など構造物とにおいては、補助レールを設けてあるので、所望の架線に繋がる補助レールを伝って渡る。
【００２２】
また、ソリ形状ガイドは支持部品の上を摩擦無く滑らかに滑ることができる。
【００２４】
さらに、ソリ形状ガイドの循環ベルトにより自ら支持部品の上を踏み越える力を発生させることができる。
【００２５】
請求項４に対応する発明は、請求項３に対応する発明の架線走行システムにおいて、前記伝達機構は減速比を有し前記循環ベルトの駆動力を増幅する機能を設けたものである。
【００２６】
このような構成の架線走行システムによれば、循環ベルトの駆動力は駆動輪で乗り越えるより大きな力を発生しているので、支持部品の上を強い力で踏み越えることができる。
【００２８】
また、通常、架線の上を走行している時には、ソリ形状ガイドは復元力により基準位置にあり、伝達機構が駆動輪から循環ベルトへの動力が伝わらないので、支持部品を乗り越えるための循環ベルトは動作しない。
【００２９】
請求項５に対応する発明は、架線を懸下する箇所に滑車を設けた複数の構造物間にわたって懸下された架線に懸下されて走行する一方、前記滑車を介して架線を懸下する構造物及び走行の障害箇所では、迂回するようにして設ける補助手段に懸下されて走行して保守点検のための探査をする架線走行装置を有する架線走行システムであって、前記補助手段は、前記迂回の経路の前記構造物に予め取付けられた補助レールで構成し、前記架線走行装置は、前後端に前記架線を挟み込んで走行するための上下に対向して設けられた駆動輪と、この各駆動輪に取付けられ、前記補助レールを挟み込んで走行するための補助レール車輪と、前記各駆動輪及び前記各補助レール車輪とを回転支持すると共に、前記上下に対向する各駆動輪及び前記各補助レール車輪との各間隔を自在として対応する架線、あるいは補助レールのいずれかを挟み込み可能とする挟み込み機構と、この挟み込み機構を支持すると共に、前記各駆動輪及び前記各補助レール車輪に回転力を伝える駆動部が取付けられた車台本体と、この車台本体に取付けられ前記架線回りに旋回させ、旋回方向にある前記補助レールを挟み込むように前記車台本体と一緒に所望の補助レール側へ姿勢制御をするバランサ及び旋回駆動源を有する旋回機構とを設け、前記滑車を通じて径間の架線をゆるめる架線長調整機構を具備したものである。
【００３０】
このような構成の架線走行システムによれば、通常、架線走行装置が架線の上を走行して点検箇所の上に到達した時に、架線長調整機構を動作させて架線をゆるめることで、架線走行装置を点検箇所に近づけることができる。
【００３２】
また、通常、架線走行装置が架線の上を走行し点検箇所の上に到達した時に、遠方に配置した架線長調整機構を動作して複数の径間の架線をゆるめることで、架線走行装置を点検箇所に近づけることができる。
【００３３】
請求項６に対応する発明は、請求項５に対応する発明の架線走行システムにおいて、前記構造物の頂上部に設けられ、前記架線を上から降ろして前記滑車に案内する架線ガイドを具備したものである。
【００３４】
このような構成の架線走行システムによれば、架線が切れた時に上から新しい架線を降ろすことで、架線は架線ガイドに倣って滑車に導かれるので、ヘリコプタなどを用いて架線を張り替えることができる。
【００３５】
【発明の実施の形態】
以下本発明の実施の形態を図面を参照して説明する。
【００３６】
図１乃至図４において、架線１に対応して前方の上側には駆動輪２Ａと補助レール車輪３Ａとを一体的に車軸４Ａによって連結し、対向する下側には駆動輪２Ｂと補助レール車輪３Ｂとを車軸４Ｂによって一体的に連結しており、これら車軸４Ａ、４Ｂにはチェーン８Ａ、８Ｂによって駆動機構８へ接続し、それぞれアーム５Ａ、アーム５Ｂ内に収納されている。
【００３７】
これに対応して、架線１に対応する後方の上側には駆動輪２Ｃと補助レール車輪３Ｃとを一体的に車軸４Ｃによって連結し、対向する下側には駆動輪２Ｄと補助レール車輪３Ｄとが車軸４Ｄによって連結しており、これら車軸４Ｃ、４Ｄはチェーン８Ｃ、８Ｄによって走行駆動系８へ接続し、それぞれアーム５Ｃ、５Ｄ内に収納されている。
【００３８】
そして、アーム５Ａ〜５Ｄ内の各車軸４Ａ〜４Ｄは、チェーン８Ａ〜８Ｄによって駆動機構８に連結され、駆動モータ９の回転に伴って駆動輪２Ａ〜２Ｄを回転可能とし、これにより架線１を挟み込んだ状態で前方及び後方へ走行可能としている。
【００３９】
上記アーム５Ａ，５Ｂは、各先端部に設けられた引っ張りばね１５Ａによって両先端部が閉じるように付勢され、一方、アーム５Ｃ，５Ｄは、各先端部に設けられた引っ張りばね１５Ｂによって両先端部が閉じるように付勢され、これによって対向する駆動輪２Ａ、２Ｂ及び補助レール車輪３Ａ、３Ｂ、駆動輪２Ｃ、２Ｄ及び対向する補助レール車輪３Ｃ、３Ｄの各対向する間隙を自在として架線１、あるいは後述する補助レールのいずれかを挟み込む挟み込み機構７が車台本体６に取り付けられている。
【００４０】
前述した駆動輪２Ａ〜２Ｄは、外周に断面Ｕ字状の溝が形成され、これらの溝には架線１との摩擦係数を増やすためのウレタン材が注入されている。
【００４１】
一方、車台本体６には、旋回用モータ１０が取付けられ、図示しないモータ軸に連動する回転軸に取付けられたアーム１１の先端にバランサ１２が設けられ、旋回用モータ１０が図２において、反時計方向へ回転すると架線１を挟持しつつ全体が図３の姿勢となるように旋回させる旋回機構が設けられている。
【００４２】
また、補助レール１６は、図５に示すように長手方向の縁辺で挟み幅ｄを形成し、端部１６ａを挟み幅ｄより挟め、上下縁にはラック歯型１６ｃが施され、これに対向する補助レール車輪３Ａ〜３Ｄには外周に沿ってピニオン歯型１７が設けられて補助レール１６と補助レール車輪３Ａ〜３Ｄとが滑らないようになっている。
【００４３】
さらに、補助レール車輪３Ａ〜３Ｄが補助レール１６に歯合した状態のとき、図５に示すように補助レール車輪３Ａ〜３Ｄのピニオン歯型１７の中央と駆動輪２Ａ〜２Ｄの外周溝との距離ｓが補助レール１６と架線１との距離ｇと略等しく形成されている。
【００４４】
上記のように構成された架線走行装置５０においては、引っ張りばね１５Ａ、１５Ｂの付勢力によってアーム５Ａ、５Ｂ及びアーム５Ｃ、５Ｄによって対向する駆動輪２Ａと２Ｂとが架線１を挟み、対向する駆動輪２Ｃと２Ｄとが架線１を挟み、駆動モータ９からの駆動を伝える駆動機構８によって各駆動輪２Ａ〜２Ｄを回転させて走行する。
【００４５】
また、図６に示すように架線１に対して架線走行装置５０の走行方向に鉄塔等の構造物２０がある場合、架線１Ａに対して補助レール１６Ｌ、架線１Ｂに対して補助レール１６Ｒが予め取付けられている。
【００４６】
この場合、図示架線１Ａから分岐点を経て架線１Ｂへ走行方向を反転して戻る場合、まずＡ点から架線走行装置５０は補助レール１６Ｌ上を補助レール車輪３Ａ〜３Ｄの回転によって走行し、分岐点を経てＢ点に到達する。Ｂ点に到達すると外部からの指令によって旋回用モータ１０が駆動されて架線走行装置５０が架線１を中心として回転し、アーム１２の先端のバランサ１２を揺動させて旋回し、姿勢が反転する。
【００４７】
これによって、図６に示すようにＢ→Ｃ方向の架線走行装置５０の進行方向右側に進行を阻止するものがなく、補助レール１６Ｒ上を走行してＣ点に到達し、その後は架線１上を架線走行装置５０が走行する。
【００４８】
このように架線１を懸下する鉄塔など構造物２０において、左右に分岐する２つの迂回路（補助レール１６Ｌ、１６Ｒ）がある場合、バランサ１２を揺動させ、架線１の回りを旋回させて姿勢を制御し、架線１に対して補助レール車輪３Ａ〜３Ｄを左右いずれか所望の補助レール（１６Ｌまたは１６Ｒ）の側に回転させて、所望の側の架線１Ａ、１Ｂに繋がる迂回路（補助レール１６）を選択することができる。
【００４９】
また、架線１を懸下する鉄塔など構造物２０において、迂回路（補助レール１６）に架線走行装置５０が乗り移る場合、補助レール１６によって補助レール車輪３Ａ〜３Ｄが押し広げられ、それに伴い車台本体６に取り付けられた挟み込み機構により挟み付けている駆動輪２Ａ〜２Ｄが架線１から開放される。このようにして、架線走行装置５０の補助レール１６への乗り移りに伴い、駆動輪２Ａ〜２Ｄが架線１から脱する。
【００５０】
さらに、架線１を懸下する鉄塔など構造物２０において、迂回路（補助レール１６）に架線走行装置５０が乗り移る場合、補助レール車輪３Ａ〜３Ｄは両端がテーパ形状としているので補助レール１６を滑ることなく容易に挟み込んで進むことができ、傾斜のある迂回路（補助レール１６）を架線走行装置５０が走行する場合でも、滑ることなく走行できる。
【００５１】
このように上記基本構成によれば、まず図６のように架線走行装置５０は所望の側の架線１Ａ、１Ｂに繋がる迂回路（補助レール１６）を選択できるので、架線１を懸下する鉄塔など構造物２０において、折れ曲がりやＴ字分岐を自在の方向に乗り移れる。
【００５２】
なお、十字交差、多重交差している所も、これらに応じた数だけ補助レール１６を設けることで、順次隣の架線に乗り移ることが可能となり、このことを繰り返すことにより所望の方向の架線に乗り移れることは言うまでもない。
【００５３】
また、架線走行装置５０が乗り移る場合、駆動輪２Ａ〜２Ｄが架線１へ脱着するための駆動輸着脱機構を別に設けることなく、架線走行装置５０の補助レール１６への乗り移りに伴い自動的に着脱するので、装置を軽くできる。
【００５４】
さらに、補助レール１６と補助レール車輪３Ａ〜３Ｄとが互いに滑らない加工を施しているので、補助レール１６に架線走行装置５０が乗り移る場合、滑ることなく容易に挟み込んで進むことができ、傾斜のある補助レール１６、架線走行装置５０が走行する場合でも、滑ることなく走行できるので、突然の小雨などがあっても、通常通りに動作できる。
【００５５】
図７は本発明による架線走行システムの第１の実施の形態を示す基本構成模式図であり、また図８及び図９は同実施の形態の架線走行システム５１の架線走行装置５１ａの機構詳細図である。なお、架線走行装置５１ａの機構の主な部分および補助レール５１ｂおよび架線１については前述した基本構成と同じなので、ここではその説明を省略する。
【００５６】
まず、図７に示すように鉄塔などの構造物の上部及び下部に２列にして架線１が張設され、上部架線から下部架線に架線走行装置５１ａを移動させるため、補助レール５１ｃは鉄塔などの構造物の上部から下部に向けて適宜捩じりを与えながら曲げて配設される。この場合、補助レール５１ｃの形状は変速区間５１ｄで厚さｔが徐々に変化するように形成されている。さらに、全区間に滑り止めの歯形を設ける場合、歯形の大きさおよびピッチはその区間の補助レール５１ｃの厚さｔに略比例しており、変速区間５１ｄにおいては、歯形の大きさおよびピッチは補助レール５１ｃの厚さｔの変化に応じて徐々に変化するように形成されている。
【００５７】
また、図８（ａ），（ｂ）に示すように補助レール車輪５２の噛み合い半径ｒが補助レール５１ｃの厚さｔにより異なるように、補助レール車輪５２は補助レール５１ｃとの噛み合い部の形状を谷形としている。さらに、前後の補助レール車輪５２ｆ，５２ｒに回転力を伝える駆動部５３の前後に振り分ける部分にデファレンシャルギヤ５３ａを設けている。さらに、補助レール車輪５２に滑り止めの歯形を設ける場合、小型歯車５２ａを挟んで歯車のピッチが揃うように並べた傘歯車５２ｂ，５２ｃを対面合わせで配置する。
この場合、補助レール５１側の歯のピッチは、補助レール車輪５２の噛み合い部に対応して変化させてある。
【００５８】
さらに、図９（ａ）に示すように、噛み合い半径ｒ１が大きい（平行移動区間の補助レール５１ｃの厚さｔ１に対応させて設定）時には、噛み合い半径ｒ１は架線１の駆動輪２の半径Ｒ１と略同じになるようにする。また、図９（ｂ）に示すように噛み合い半径ｒ２が小さい（登坂区間の補助レール５１ｃの厚さｔ２に対応させて設定）時には、噛み合い半径ｒ２は小型歯車５２ａの半径Ｒ２とし、補助レール５１ｃの厚さｔ２は小型歯車５２ａの歯車としている。
【００５９】
次に上記のように構成された架線走行システム５１の架線走行装置５１ａの動作および架線走行方法に関して、図７乃至図９を用いて説明する。
【００６０】
まず、図７において、補助レール５１ｃを架線走行装置５１ａが上下にも移動できるので、架線走行装置５１ａは電柱や鉄塔などの構造物を上下したり、建屋の異なる階床を行き来したりできる。
【００６１】
また、図８（ａ），（ｂ）において、補助レール５１ｃの厚さｔにより補助レール車輪５２の谷型形状の噛み合い部への食い込み量が異なるので、補助レール車輪５２との噛み合い半径ｒを変えることができる。架線走行装置５１ａの走行速度と走行推進力との関係が可変になるので、架線走行装置５１ａが補助レール５１ｃを移動する時に走行速度を落して走行推進力をあげることができ、急傾斜（鉛直を含む）の補助レール５１ｃを登坂できる。
【００６２】
さらに、変速区間５１ｄにおいて、前後の補助レール車輪５２ｆ，５２ｒの噛み合い半径ｒ１，ｒ２が異なっていても駆動部５３のデファレンシャルギヤ５３ａにより平均した走行速度となるので、前後の補助レール車輪５２ｆ，５２ｒいずれにおいても、補助レール５１ｃとの間で滑りがなくなる。
【００６３】
水平移動区間において、図９（ａ）に示すように傘歯車５２ｂ、５２ｃは補助レール５１ｂの厚さｔ１で噛み合い、噛み合い半径ｒ１は架線１の駆動輪２の半径Ｒ１に同じなので、架線走行装置５１ａは架線１から補助レール５１ｂに乗り移る際に、架線１の走行速度と補助レール５１ｂの水平移動区間の走行速度は同じである。また、登坂区間（減速区間）の図９（ｂ）においては、噛み合い半径ｒ２は小型歯車５２ａの半径Ｒ２とし、補助レール５１ｃの厚さｔ２は小型歯車５２ａの歯厚としているので、補助レール５１ｃの小型歯車５２ａへの噛み合いと傘歯車５２ｂ，５２ｃへの噛み合いは連続的である。
【００６４】
本実施の形態によれば、まず、図７において、架線走行装置５１ａは電柱や鉄塔などの構造物を上下できるので、詳しく点検したい部分が下にある場合には降りて近傍より点検したり、建屋の異なる階床を行き来したりできるので、１つの架線走行装置５１ａで建屋全体を点検できる。
【００６５】
次に図８に示すように、補助レ−ル車輪５２との噛み合い半径ｒを変える手段は補助レール５１ｄの厚さｔの変化だけなので、安価に架線走行装置５１ａの速度比を調整できる。また、架線走行装置５１ａが傾斜のある補助レール５１ｃを移動する時のみ走行推進力をあげることができるので、水平方向への走行速度を落とすことなく、登坂のために必要以上に容量の大きな駆動源を準備する必要もない。
【００６６】
さらに、補助レール車輪５２の噛み合い半径ｒが変化する箇所において、前後の補助レール車輪５２ｆ，５２ｒは補助レール５１ｃの上を滑らないので、補助レール車輪５２および補助レール５１ｃには摩耗や振動を生じることはない。図９（ａ）において、架線走行装置５１ａの架線１から補助レール５１ｃへの乗り移りに速度差はなく、振動を生じることはなく滑らかに乗り移る。
【００６７】
また、登坂区間の図９（ｂ）において、架線走行装置５１ａは小型歯車５２ａで補助レール５１ｃにしっかり噛み合って登坂し、変速区間では小型歯車５２ａから傘歯車５２ｂ、５２ｃへと補助レール５１ｄの噛み合いが連続的に滑らかに移行する。
【００６８】
図１０は本発明による架線走行システム６０の第２の実施の形態の基本構成を示す模式図であり、図１１は同実施の形態における架線走行装置６０ａの機構詳細図である。なお、架線走行装置６０ａの機構の主な部分および補助レール６８及び架線１については前述した基本構成と同じなので、その説明を省略する。
【００６９】
図１０に示すように、架線６１が単純な支持部品６１ａで支持されており、且つ手前の架線６１ｂと乗り移る架線６１ｃとがほぼ直線的な鉄塔や電柱などの構造物６２の場合には補助レールは設けられない。ここで、上記支持部品６１ａは、図示するようにコ字形部材に碍子を取付け、この碍子に架線を取付けて重力だけを支えるように構成したもので、直線的に架線が連続しているところで用いられる。
【００７０】
架線走行装置６０ａは、各駆動輪６３の鍔の脇に挟み込み機構６４から取付けたソリ形状ガイド６５を具備している。なお、急峻な折れ曲がり、又は分岐を有する架線を懸下する鉄塔などの構造物６６と、架線が単純に踏み越えできないような支持形態の鉄塔などの構造物６７とにおいては、前述したような補助レール６８（６８ａ，６８ｂ）を設ける。
【００７１】
また、図１１に示すようにソリ形状ガイド６５の縁辺には、循環ベルト６５ａが縁辺に沿って循環自在となるように構成され、駆動輪６３の出力ローラ６３ａから循環ベルト６５ａの駆動プーリ６５ｂへ動力を伝達することにより、循環ベルト６５ａが循環するように駆動される。
【００７２】
また、駆動輪６３と出力ローラ６３ａとの関係には半径の違いによる減速比を有し、循環ベルト６５ａの駆動力を増幅する機能を有している。また、ソリ形状ガイド６５は挟み付ける側に復元ばね６５ｃを有しガイド６５ｄにより並進自在に挟み込み機構６４により支持されている。支持部品６１ａ上を挟み込み乗り越える際に押し広げられる側に力を受けて復元ばね６５ｃの復元力に抗してソリ形状ガイド６４は押し広げられた場合にのみ、駆動プーリ６５ｂが出力ローラ６３ａに当接したり、又は噛み合うので、駆動輪６３から循環ベルト６５ａへの動力を伝えるように構成している。さらに、バランサ１２の周囲にも縁辺を設け、その縁辺に沿って循環ベルト６９が循環自在となるように構成している。
【００７３】
次に上記のように構成された架線走行システム６０の架線走行装置６０ａの動作および架線走行方法に関して図１０および図１１を用いて説明する。
【００７４】
まず、図１０において、架線６１が単純な支持部品６１ａで支持されており、かつ、手前の架線６１ｂと乗り移る架線６１ｃとが直線的な鉄塔や電柱など構造物６２においては、駆動輪６３の鍔の脇に取り付けたソリ形状ガイド６５が支持部品６１ａの碍子を取付けたコ字形部材に当たり、ソリ形状ガイド６５が推進に伴いその勾配により押し広げられ、これに連動して駆動輪６３も広げられることで、コ字形部材の上下面を挟み込みながら滑るように移動する。この時の推進力は、前輪が広がる場合には後輪が、後輪が広がる場合には前輪により出され、支持部品６１ａを順次乗り越えることができる。
【００７５】
なお、急峻な折れ曲がりまたは分岐を有する架線を懸下する鉄塔など構造物６６と、架線が単純に踏み越えできないような支持形態の鉄塔など構造物６７とにおいては、補助レール６８（６８ａ，６８ｂ）を設けてあるので、前述した基本構成と同様に所望の架線６１に繋がる補助レール６８を伝って渡る。
【００７６】
また、図１１において、ソリ形状ガイド６５は支持部品６１ａの上を摩擦無く滑らかに滑ることができる。ソリ形状ガイド６５の循環ベルト６５ａにより自ら支持部品６１ａの上を踏み越える力を発生する。循環ベルト６５ａは駆動輪６３で乗り越えるより大きな力を発生しているので、支持部品６１ａの上を強い力で踏み越えることができる。支持部品６１ａを踏み越える際に、バランサ１２が周辺の構造物に当接した場合、当接した構造物との間で循環ベルト６９が循環することにより摩擦を少なくする。
【００７７】
通常、架線６１の上を走行している時には、ソリ形状ガイド６５は復元ばね６５ｃの復元力により基準位置にあり、駆動プーリ６５ｂが出力ローラ６３ａに接触しないまたは噛み合わないので、駆動輪６２から循環ベルト６５ａへの動力が伝わらない。架線６１の上を走行している時には、支持部品６１ａを乗り越えるための循環ベルト６５ａは動作しない。
【００７８】
本発明の形態によれば、図１０において、架線６１が単純な支持部品６１ａで支持されており、且つ乗り移る手前の架線６１ｂと乗り移る先の架線６１ｃとがほぼ直線的な鉄塔や電柱など構造物６２においては、ソリ形状ガイド６５を用いて乗り越えることができるので、補助レール６８を設ける必要がない。これにより、補助レール６８の取付け費用と維持費を節約できる。
【００７９】
また、図１１において、循環ベルト６５ａは駆動輪６３で乗り越えるより大きな力を発生して支持部品６１ａの上を強い力で踏み越えるので、通常の走行速度を落として走行推進力を増やすことはなく、乗り越えのために必要以上に容量の大きな駆動源を用意することもない。
【００８０】
さらに、バランサ１２が周辺の構造物に当接しても循環ベルト６９が摩擦を減らすので、駆動源への負担は減り、当接部分が滑りながらも踏み越えることができる。また、架線６１の上を走行している時には、循環ベルト６５ａは動作しないので、循環ベルト６５ａを常時空回りさせた場合に比べて、摩擦などで消費するエネルギを節約することができる。
【００８１】
図１２は本発明による架線走行システムの第３の実施の形態の基本構成を示す模式図であり、図１３は同実施の形態の架線走行システムの架線の張り替え作業の説明図である。なお、架線走行装置７０ａの機構の主な部分および補助レール７０ｂと架線１については前述した基本構成と同じであるので、その説明を省略する。
【００８２】
図１２に示すように、構造物７１の頂上部７１ａに架線１を懸下する場合であって、架線１を懸下している箇所に滑車７２などを設けて複数の構造物７１を跨いで１本の架線１を懸下している。架線の端部１ａにはその長さを変える架線長調整機構７３（架線を巻き取るウィンチもしくは架線を手探るワインダ）を構造物もしくは地面に固定している。また、構造物７１の頂上部７１ａの滑車７２に架線１を上から降ろして案内する架線ガイド７４を備えている。
【００８３】
次にこのような構成の架線走行システム７０における架線走行装置７０ａの動作及び架線の張り替え方法に関して、図１２及び図１３を用いて説明する。
【００８４】
まず、図１２において、通常、架線走行装置７０ａが架線１の上を走行し、点検箇所の上に到達した時に遠方に配置した架線長調整機構７３を動作して滑車７２を通じて複数の径間の架線１をゆるめることで、架線走行装置７０ａを下の点検箇所に近づけることができる。
【００８５】
また、図１３において、架線１が切れた時に上から新しい架線１ｒを降ろすことで、新しい架線１ｒは架線ガイド７４に倣って滑車７２に導かれるので、ヘリコプタ７５などを用いて上空より張り替えることができる。
【００８６】
本実施の形態によれば、図１２において、架線長調整機構７３により架線走行装置７３ａを下に降ろして点検箇所に近づけることができるので、架線走行装置７３ａは特別の機構を装備することなく軽量で小型なものとなり、また火山の噴火直前までの監視などを行うことができる。
【００８７】
また、図１３において、火山の噴火直前までの監視をして噴火で架線走行装置７３ａごと吹き飛ばされて架線１が切れた時に、火山が小康状態の時に手早くヘリコプタ７５などを用いて上空より新しい架線１ｒに張り替えることができるので、架線走行システム７０の復旧は容易である。
【００８８】
【発明の効果】
以上述べたように本発明によれば、架線走行装置に姿勢制御用のバランサを１軸追加するだけで、動作軸数が少ない軽量小型な構成でありながら、架線の支持点での折れ曲がりやＴ字分岐を自在の方向に乗り移りでき、すなわち架線走行装置が走行する架線が市街地の配置線の場合でも隣の電線および架空地線との離隔距離を確保でき、障害物を回避できるので、点検作業などの効率を向上させることができる架線走行システムを提供できる。
【図面の簡単な説明】
【図１】本発明による架線走行システムにおける架線走行装置の基本構成の概略を示す外観斜視図。
【図２】図１のＸ方向から見た側面図。
【図３】図２の姿勢を反転させた側面図。
【図４】起動走行系の駆動部の模式的斜視図。
【図５】同基本構成における補助レールの構成を示す模式的斜視図。
【図６】図１の架線走行装置に備えられた駆動機構を示す説明図。
【図７】本発明による架線走行システムの第１の実施の形態の基本構成を示す模式的斜視図。
【図８】図７の架線走行装置の機構を示す詳細図であって、図８（ａ）は図１のＹ−Ｙ方向から見た図、図８（ｂ）は図８（ａ）のＢ−Ｂ方向から見た図。
【図９】図８の機構において、補助レールと駆動輪及び傘歯車、小型歯車部分の機構図であって、図９（ａ）は水平移動区間、図９（ｂ）は登坂区間（減速区間）の状況を示す図。
【図１０】本発明による架線走行システムの第２の実施の形態の基本構成を示す模式的平面図。
【図１１】図１０の架線走行装置の機構を示す詳細斜視図。
【図１２】本発明による架線走行システムの第３の実施の形態の基本構成を示す模式図。
【図１３】図１２の架線走行システムの架線の張り替え方法を示す作業説明図。
【符号の説明】
５１……架線走行システム
５１ａ……架線走行装置
５１ｂ……補助レール
５２……補助レール車輪
５２ａ……小型歯車
５２ｂ，５２ｃ……傘歯車
５２ｆ，５２ｒ……前後の補助レール車輪
５３……駆動部
５３ａ……デファレンシャルギヤ
６０……架線走行システム
６０ａ……架線走行装置
６１……架線
６１ａ……支持部品
６１ｂ……手前の架線
６１ｃ……乗り移る架線
６３……各駆動輪
６３ａ……出力ローラ
６４……挟み込み機構
６５……ソリ形状ガイド
６５ａ……循環ベルト
６５ｂ……駆動プーリ
６５ｃ……復元ばね
６５ｄ……ガイド
６６，６７……構造物
６８（６８ａ，６８ｂ）……補助レール
７０……架線走行システム
７０ａ……架線走行装置
７０ｂ……補助レール
７１……構造物
７１ａ……頂上部
７２……滑車
７３……架線長調整機構
７４……架線ガイド[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an overhead wire traveling system that travels in a state suspended from an overhead line such as a power transmission line, a distribution line, a communication line, etc., for example, for maintenance and inspection of overhead lines, surroundings of overhead lines, and overhead line incidental facilities.
[0002]
[Prior art]
In general, overhead lines such as power transmission lines, distribution lines and communication lines are stretched over a steel tower in accordance with the terrain of the construction site and in order to avoid buildings and the like. For this reason, the overhead wire may be erected by bending left and right and up and down with a steel tower as a break point.
[0003]
In such an overhead wire traveling device (for example, an elevated overhead wire moving device described in JP-A-3-89805) used for maintenance / inspection of overhead wires, for example, in a structure such as a steel tower that suspends overhead wires, the overhead wire traveling device Carries an auxiliary track serving as a detour and has a number of operating axes for operating the auxiliary track. Then, when passing through the steel tower, move several auxiliary shafts, pass the auxiliary track corresponding to the bent overhead line, change to the next overhead line while bypassing the auxiliary track, and continuously check the overhead line I was able to run.
[0004]
On the other hand, distribution lines and feeders installed along the railway have no sharp bends and are at most about 5 degrees, and there are cases where the damaged section is known at the time of maintenance and inspection. Therefore, in such a case, there is a demand for an overhead wire traveling device that is small and lightweight and can be easily transferred to an overhead wire without an operating shaft corresponding to the bending of the electric wire.
[0005]
In order to meet such a demand, the inventors have previously proposed an overhead wire traveling device as disclosed in Japanese Patent Laid-Open No. 4-334913, and the outline thereof will be described below.
[0006]
This overhead wire traveling device travels in a state where the overhead wire is suspended between the front and rear and middle three driving wheels provided in the device body alternately, and the obstacle portion is used by using a balancer for posture control of the device body. Pass through.
[0007]
For example, to travel through obstacles due to overhead wire support equipment such as a suspension insulator used for power transmission lines, move the balancer to move the center of gravity, travel with a balance posture with respect to the overhead line, The overhead traveling device is spirally moved so that the three driving wheels sequentially pass one by one avoiding the opposite side of the obstacle. This overhead wire travel device has a small number of operating axes and is light and compact, and can pass through obstacles such as a hanging insulator in an overhead line without a sharp bend such as a distribution line or a feeder line installed along a railway.
[0008]
[Problems to be solved by the invention]
By the way, when the overhead line which an overhead wire traveling apparatus travels is a distribution line in an urban area, the distribution line is not as thick as a transmission line, and the distance between the adjacent electric line and the overhead ground line running in parallel is short. And the distribution line in a city area is bent or branched at the support point of the overhead line.
[0009]
However, in the conventional overhead wire traveling device (the elevated overhead wire moving device described in Japanese Patent Laid-Open No. 3-89805), although it can be transferred corresponding to bending or T-shaped branching at a support point that suspends the overhead wire, the number of operating axes is small. Because there are many, it is difficult to reduce the size and weight.
[0010]
Moreover, since the wire diameter is small compared to the weight of the overhead wire travel device, the slack is large, and there is a concern about short circuit with nearby wires.
[0011]
Furthermore, the conventional overhead wire traveling device (Japanese Patent Laid-Open No. 4-334913) has a small number of operating axes and is lightweight and compact. However, in an overhead wire with a sharp bend or a T-shaped branch, it cannot pass over an obstacle. There was a problem.
[0012]
In order to solve the above-mentioned problems, the present invention allows a minimum amount of incidental equipment such as a detour on which an overhead line traveling device travels to be attached to a structure such as a steel tower that suspends an overhead line or an overhead line. It is an object of the present invention to provide an overhead wire traveling system that can change a branch point such as a bending at a support point of an overhead wire or a T-shaped branch in any direction while having a light and small configuration with a very small number of axes.
[0013]
[Means for Solving the Problems]
 The invention corresponding to claim 1 travels while being suspended by an overhead line, while being suspended by an auxiliary means provided so as to bypass a structure that suspends the overhead line and an obstacle in traveling. An overhead line traveling system having an overhead line traveling device for traveling,auxiliaryMeans of the detour routeAuxiliary rails that are pre-attached to the structure and differ in thickness at least in part.The overhead wire travel device is configured to drive the drive wheels provided opposite to each other in the vertical direction for traveling with the overhead wire sandwiched between the front and rear ends, and attached to each of the drive wheels, and travels with the auxiliary rail sandwiched therebetween. An auxiliary rail wheel for rotation, and each driving wheel and each auxiliary rail wheel, and an overhead wire corresponding to each of the upper and lower opposing driving wheels and each auxiliary rail wheel as freely as possible, or A sandwiching mechanism that can sandwich any of the auxiliary rails, a chassis main body to which the sandwiching mechanism is supported, and a drive unit that transmits a rotational force to each of the driving wheels and each of the auxiliary rail wheels, and the chassis main body. The vehicle is swung around the overhead wire, and the posture is controlled to the desired auxiliary rail side together with the chassis main body so as to sandwich the auxiliary rail in the turning direction. And a pivot mechanism having a balancer and rotation driving source is provided,The auxiliary rail wheel has a valley shape with the meshing portion with the auxiliary rail.The meshing radius of the auxiliary rail wheel is formed to be different depending on the thickness of the auxiliary rail, and the relationship between the traveling speed and the traveling driving force of the overhead wire traveling device is made variable.
[0014]
According to the overhead line traveling system having such a configuration, in a structure such as a steel tower that suspends the overhead line, when there are two detours branching left and right, the balancer is swung to control the posture around the overhead line, Rotate the auxiliary rail wheel to the left or right desired auxiliary rail side with respect to the overhead line, select the detour that connects to the desired side of the overhead line, and transfer the bending or T-shaped branch at the support point of the overhead line in the free direction it can. In addition, the overhead wire travel device can be configured to be lightweight and compact with a very small number of operating axes by only adding one balancer for posture control. In particular, even when the overhead line traveled by the overhead wire traveling device is a distribution line in an urban area, it is possible to secure a separation distance between the adjacent electrical line and the overhead ground line and avoid all obstacles, so that the efficiency of inspection work and the like can be improved. it can. In addition, since the relationship between the traveling speed of the overhead wire traveling device and the traveling propulsion force is variable, when the overhead wire traveling device moves the auxiliary rail, the traveling speed can be reduced to increase the traveling thrust force, and the steeply inclined auxiliary rail Can climb up.
[0016]
 Also,Since the amount of biting into the valley-shaped meshing portion of the auxiliary rail wheel varies depending on the thickness of the auxiliary rail, the meshing radius of the auxiliary rail wheel can be changed.
[0017]
 Claim2According to the invention corresponding to claim 1, in the overhead line traveling system of the invention corresponding to claim 1, a differential gear is provided in a portion that distributes the front and rear of the drive unit that transmits rotational force to the auxiliary rail wheel, and the auxiliary rail wheel of the front and rear is provided. Even if the meshing radii are different, the average traveling speed is obtained.
[0018]
According to the overhead traveling system having such a configuration, even if the meshing radii of the front and rear auxiliary rail wheels are different, the average traveling speed is obtained by the differential gear of the drive unit. Sliding against the rail is eliminated.
[0019]
 Claim3In the invention corresponding to the above, while traveling while being suspended by an overhead line, overhead traveling is performed by being suspended by a structure that suspends the overhead line and auxiliary means provided so as to detour with respect to the obstacle location of the traveling An overhead wire traveling system having a device,auxiliaryMeans of the detour routeAuxiliary rails pre-attached to the structureThe overhead wire travel device is constructed by driving wheels provided opposite to each other for traveling with the overhead wire sandwiched between front and rear ends, and attached to each of the drive wheels, and travels with the auxiliary rail interposed therebetween. Auxiliary rail wheels for driving, each driving wheel and each auxiliary rail vehicleCircleA pinching mechanism that supports the rotation and supports the pinching mechanism, and a pinching mechanism that can pinch any of the corresponding overhead wires or auxiliary rails with a space between each of the driving wheels and the auxiliary rail wheels facing each other freely. In addition, a chassis main body to which a drive unit for transmitting a rotational force to each of the driving wheels and the auxiliary rail wheels is attached, and the auxiliary rail that is attached to the chassis main body and is turned around the overhead line to sandwich the auxiliary rail in the turning direction. A balancer for controlling the posture toward the desired auxiliary rail side together with the chassis main body and a turning mechanism having a turning drive source,The overhead wire travel device is provided on the side of each of the driving wheel cages, provided with a restoring spring on the clamping side and supported by the clamping mechanism so as to be able to translate, and on the edge of the sled-shaped guide And a transmission mechanism for transmitting the driving force of the driving wheel to the circulation belt when the sled-shaped guide is spread against the restoring force of the restoring spring by the circulation belt freely circulated along the support part.Is.
[0020]
According to the overhead line traveling system having such a configuration, the overhead line is supported by a simple support component, and in a structure such as a steel tower or a utility pole in which the overhead line and the overhead line to be transferred are straight, it is attached to the side of the driving wheel. The sled-shaped guide can be slid on the support member and can be sequentially climbed over. In addition, auxiliary rails are provided for structures such as steel towers that suspend overhead lines having sharp bends or branches, and structures such as steel towers that are supported in such a way that the overhead lines cannot simply be stepped over. Cross over the auxiliary rail that leads to.
[0022]
 Also,The sled guide can slide smoothly on the support part without friction.
[0024]
 further,By the circulation belt of the sled-shaped guide, it is possible to generate a force to step on the supporting part by itself.
[0025]
 Claim4The invention corresponding to3In the overhead line traveling system according to the invention, the transmission mechanism has a reduction ratio and a function of amplifying the driving force of the circulation belt.
[0026]
According to the overhead traveling system having such a configuration, the driving force of the circulation belt generates a larger force than the driving wheel can overcome, so that it is possible to step over the support component with a strong force.
[0028]
 Also,Normally, when running on an overhead line, the sled guide is in the reference position due to the restoring force, and the transmission mechanism does not transmit power from the drive wheels to the circulation belt, so the circulation belt to get over the support parts works do not do.
[0029]
 Claim5The invention corresponding toFor overhead lines suspended between multiple structures with pulleys at the locations where overhead lines are suspendedWhile running suspended,Through the pulleyIn a structure that suspends overhead lines and obstacles in traveling, an overhead line traveling system having an overhead line traveling device that travels suspended by auxiliary means provided so as to be detoured and that conducts surveys for maintenance and inspection, AboveauxiliaryMeans for the detouring pathTo structureThe overhead wire traveling device is constructed by pre-attached auxiliary rails, and the overhead wire traveling device is attached to each of the driving wheels, and is attached to the respective driving wheels. Auxiliary rail wheels for running with the rails sandwiched, and each drive wheel and each auxiliary rail wheel are supported in rotation, and each distance between each of the upper and lower opposing drive wheels and each auxiliary rail wheel is freely adjustable A vehicle body in which either a corresponding overhead wire or an auxiliary rail can be inserted, and a drive unit that supports the clamping mechanism and that transmits a rotational force to each of the driving wheels and each of the auxiliary rail wheels is mounted. The main body and the auxiliary body mounted on the main body of the vehicle body and swiveled around the overhead line, together with the main body of the vehicle body so as to sandwich the auxiliary rail in the turning direction. It provided a turning mechanism with a balancer and a rotation driving source to the attitude control to Lumpur side,Loosen the span wire through the pulleyOverhead length adjustment mechanismEquippedIt is a thing.
[0030]
According to the overhead line traveling system having such a configuration, normally, when the overhead line traveling device travels on the overhead line and reaches the inspection point, the overhead line length adjustment mechanism is operated to loosen the overhead line. The device can be brought closer to the inspection point.
[0032]
 Also,Normally, when the overhead wire traveling device travels over the overhead wire and reaches the inspection point, the overhead wire traveling device is operated by operating the overhead wire length adjusting mechanism located far away to loosen the overhead wire between multiple diameters, thereby checking the overhead wire traveling device. Can be approached.
[0033]
 Claim6The invention corresponding to5In the overhead line traveling system according to the invention, the top of the structure isProvided, saidLower the overhead line from aboveOn the pulleyAn overhead wire guide for guiding is provided.
[0034]
According to the overhead line traveling system having such a configuration, when the overhead line is cut, a new overhead line is lowered from above, and the overhead line is guided to the pulley following the overhead line guide. Therefore, the overhead line can be replaced using a helicopter or the like. it can.
[0035]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0036]
1 to 4, the driving wheel 2A and the auxiliary rail wheel 3A are integrally connected to the front upper side corresponding to the overhead line 1 by the axle 4A, and the driving wheel 2B and the auxiliary rail wheel are opposed to the lower side. 3B is integrally connected by an axle 4B. These axles 4A and 4B are connected to the drive mechanism 8 by chains 8A and 8B, and are accommodated in the arms 5A and 5B, respectively.
[0037]
Correspondingly, the driving wheel 2C and the auxiliary rail wheel 3C are integrally connected to the rear upper side corresponding to the overhead wire 1 by the axle 4C, and the driving wheel 2D and the auxiliary rail wheel 3D are connected to the lower side facing each other. Are connected by an axle 4D, and these axles 4C, 4D are connected to the traveling drive system 8 by chains 8C, 8D and are accommodated in arms 5C, 5D, respectively.
[0038]
The axles 4A to 4D in the arms 5A to 5D are connected to the drive mechanism 8 by chains 8A to 8D, and the drive wheels 2A to 2D can be rotated along with the rotation of the drive motor 9, thereby The vehicle can travel forward and backward while being sandwiched.
[0039]
The arms 5A and 5B are urged so that both ends are closed by a tension spring 15A provided at each tip, while the arms 5C and 5D are both ends by a tension spring 15B provided at each tip. The portion is biased so as to be closed, whereby the opposing driving wheels 2A, 2B and the auxiliary rail wheels 3A, 3B, the driving wheels 2C, 2D and the opposing auxiliary rail wheels 3C, 3D can be freely spaced by the overhead wire 1 Alternatively, a sandwiching mechanism 7 for sandwiching any of the later-described auxiliary rails is attached to the chassis main body 6.
[0040]
The drive wheels 2A to 2D described above are formed with U-shaped grooves on the outer periphery, and urethane materials for increasing the coefficient of friction with the overhead wire 1 are injected into these grooves.
[0041]
On the other hand, a turning motor 10 is attached to the chassis main body 6, and a balancer 12 is provided at the tip of an arm 11 attached to a rotating shaft interlocking with a motor shaft (not shown). The turning motor 10 is shown in FIG. There is provided a turning mechanism for turning the whole body so as to be in the posture shown in FIG. 3 while sandwiching the overhead wire 1 when rotated clockwise.
[0042]
Further, as shown in FIG. 5, the auxiliary rail 16 has a sandwiching width d at the edge in the longitudinal direction, the end 16a is sandwiched by the sandwiching width d, and a rack tooth mold 16c is provided on the upper and lower edges to face this. Auxiliary rail wheels 3A to 3D are provided with pinion teeth 17 along the outer periphery so that the auxiliary rail 16 and the auxiliary rail wheels 3A to 3D do not slip.
[0043]
Further, when the auxiliary rail wheels 3A to 3D are engaged with the auxiliary rail 16, as shown in FIG. 5, the center of the pinion tooth mold 17 of the auxiliary rail wheels 3A to 3D and the outer peripheral grooves of the drive wheels 2A to 2D The distance s is formed approximately equal to the distance g between the auxiliary rail 16 and the overhead wire 1.
[0044]
In the overhead wire traveling device 50 configured as described above, the driving wheels 2A and 2B opposed by the arms 5A and 5B and the arms 5C and 5D sandwich the overhead wire 1 by the urging force of the tension springs 15A and 15B, and are opposed to each other. The wheels 2 C and 2 D sandwich the overhead wire 1 and travel by rotating the drive wheels 2 A to 2 D by the drive mechanism 8 that transmits the drive from the drive motor 9.
[0045]
In addition, as shown in FIG. 6, when there is a structure 20 such as a steel tower in the traveling direction of the overhead line traveling device 50 with respect to the overhead line 1, the auxiliary rail 16L for the overhead line 1A and the auxiliary rail 16R for the overhead line 1B are provided in advance. Installed.
[0046]
In this case, when the traveling direction is reversed from the overhead line 1A to the overhead line 1B via the branch point, the overhead line traveling device 50 first travels from the point A on the auxiliary rail 16L by the rotation of the auxiliary rail wheels 3A to 3D. The point B is reached via the point. When the point B is reached, the turning motor 10 is driven by an instruction from the outside, the overhead wire traveling device 50 rotates around the overhead wire 1, the balancer 12 at the tip of the arm 12 is swung and turned, and the posture is reversed. .
[0047]
As a result, as shown in FIG. 6, there is nothing to prevent the traveling on the right side of the traveling direction of the overhead line traveling device 50 in the B → C direction, traveling on the auxiliary rail 16R, reaching the point C, and thereafter on the overhead line 1 The overhead wire travel device 50 travels.
[0048]
When there are two detours (auxiliary rails 16L and 16R) branching left and right in the structure 20 such as a steel tower that suspends the overhead wire 1 in this way, the balancer 12 is swung and swung around the overhead wire 1 By controlling the posture and rotating the auxiliary rail wheels 3A to 3D to the left or right side of the desired auxiliary rail (16L or 16R) with respect to the overhead line 1, the detour (auxiliary route) connected to the desired side overhead lines 1A, 1B Rail 16) can be selected.
[0049]
Further, in the structure 20 such as a steel tower that suspends the overhead wire 1, when the overhead wire traveling device 50 is transferred to the detour (auxiliary rail 16), the auxiliary rail wheels 3 A to 3 D are expanded by the auxiliary rail 16, and accordingly the chassis body Drive wheels 2 A to 2 D sandwiched by a sandwiching mechanism attached to 6 are released from the overhead wire 1. In this way, the drive wheels 2 A to 2 D are detached from the overhead wire 1 with the transfer of the overhead wire traveling device 50 to the auxiliary rail 16.
[0050]
Further, in the structure 20 such as a steel tower that suspends the overhead wire 1, when the overhead wire traveling device 50 is transferred to the detour (auxiliary rail 16), the auxiliary rail wheels 3 A to 3 D have both ends tapered so that the auxiliary rail 16 slides. It is possible to travel without being slipped even when the overhead wire travel device 50 travels on an inclined detour (auxiliary rail 16).
[0051]
As described above, according to the basic configuration, the overhead wire traveling device 50 can select the detour (auxiliary rail 16) connected to the desired overhead wires 1A and 1B as shown in FIG. In the structure 20, the bending and the T-shaped branch can be transferred in any direction.
[0052]
In addition, it is possible to transfer to the adjacent overhead line sequentially by providing as many auxiliary rails 16 as there are crosses and multiple crossings, and by repeating this, it is possible to change to the overhead line in the desired direction. Needless to say, you can transfer.
[0053]
In addition, when the overhead wire travel device 50 is transferred, the drive wheels 2A to 2D are automatically attached and detached as the overhead wire travel device 50 is transferred to the auxiliary rail 16 without providing a separate drive transport attachment / detachment mechanism for detaching the drive wheels 2A to 2D. Therefore, the device can be lightened.
[0054]
Furthermore, since the auxiliary rail 16 and the auxiliary rail wheels 3A to 3D are processed so as not to slide with each other, when the overhead wire traveling device 50 is transferred to the auxiliary rail 16, the auxiliary rail 16 can be easily sandwiched and moved without slipping. Even when a certain auxiliary rail 16 and overhead wire traveling device 50 travel, they can travel without slipping, so that they can operate as usual even if there is a sudden light rain.
[0055]
FIG. 7 is a basic configuration schematic diagram showing the first embodiment of the overhead line traveling system according to the present invention, and FIGS. 8 and 9 are detailed views of the mechanism of the overhead line traveling apparatus 51a of the overhead line traveling system 51 of the embodiment. It is. In addition, since the main part of the mechanism of the overhead wire traveling device 51a, the auxiliary rail 51b, and the overhead wire 1 are the same as the basic configuration described above, the description thereof is omitted here.
[0056]
First, as shown in FIG. 7, the overhead wire 1 is stretched in two rows on the upper and lower parts of a structure such as a steel tower, and the overhead rail traveling device 51a is moved from the upper overhead line to the lower overhead line. The structure is bent and provided with appropriate twisting from the upper part to the lower part. In this case, the shape of the auxiliary rail 51c is formed so that the thickness t gradually changes in the speed change section 51d. Further, when the non-slip tooth profile is provided in the entire section, the size and pitch of the tooth profile are substantially proportional to the thickness t of the auxiliary rail 51c in that section. In the speed change section 51d, the tooth profile size and pitch are The auxiliary rail 51c is formed so as to gradually change according to the change in the thickness t.
[0057]
 Further, as shown in FIGS. 8A and 8B, the auxiliary rail wheel 52 has a shape of a meshing portion with the auxiliary rail 51c so that the meshing radius r of the auxiliary rail wheel 52 varies depending on the thickness t of the auxiliary rail 51c. Is in the shape of a valley. Further, a differential gear 53a is provided at a portion that distributes the front and rear auxiliary rail wheels 52f and 52r to the front and rear of the drive unit 53 that transmits the rotational force. Furthermore, when providing the non-slip tooth profile on the auxiliary rail wheel 52, the bevel gears 52b and 52c arranged so that the pitches of the gears are aligned across the small gear 52a are arranged facing each other.
 In this case, the pitch of the teeth on the auxiliary rail 51 side is changed corresponding to the meshing portion of the auxiliary rail wheel 52.
[0058]
Further, as shown in FIG. 9A, when the meshing radius r1 is large (set in correspondence with the thickness t1 of the auxiliary rail 51c in the translation section), the meshing radius r1 is the radius R1 of the driving wheel 2 of the overhead wire 1. To be almost the same. Further, as shown in FIG. 9B, when the meshing radius r2 is small (set to correspond to the thickness t2 of the auxiliary rail 51c in the uphill section), the meshing radius r2 is the radius R2 of the small gear 52a, and the auxiliary rail 51c. The thickness t2 is the gear of the small gear 52a.
[0059]
Next, the operation of the overhead line traveling device 51a of the overhead line traveling system 51 configured as described above and the overhead line traveling method will be described with reference to FIGS.
[0060]
First, in FIG. 7, since the overhead wire traveling device 51a can move up and down the auxiliary rail 51c, the overhead wire traveling device 51a can move up and down structures such as utility poles and steel towers, and go back and forth between different floors of the building.
[0061]
8 (a) and 8 (b), the amount of biting into the valley-shaped meshing portion of the auxiliary rail wheel 52 differs depending on the thickness t of the auxiliary rail 51c. Can be changed. Since the relationship between the traveling speed of the overhead wire traveling device 51a and the traveling driving force is variable, when the overhead wire traveling device 51a moves on the auxiliary rail 51c, the traveling speed can be reduced and the traveling driving force can be increased. Can be climbed on the auxiliary rail 51c.
[0062]
Further, in the speed change section 51d, even if the meshing radii r1 and r2 of the front and rear auxiliary rail wheels 52f and 52r are different, the average traveling speed is obtained by the differential gear 53a of the drive unit 53, so the front and rear auxiliary rail wheels 52f and 52r are the same. In any case, there is no slip between the auxiliary rail 51c.
[0063]
In the horizontal movement section, as shown in FIG. 9A, the bevel gears 52b and 52c mesh with each other at the thickness t1 of the auxiliary rail 51b, and the meshing radius r1 is the same as the radius R1 of the drive wheel 2 of the overhead wire 1, When 51a transfers from the overhead line 1 to the auxiliary rail 51b, the traveling speed of the overhead line 1 and the traveling speed of the horizontal movement section of the auxiliary rail 51b are the same. In FIG. 9B of the uphill section (deceleration section), the meshing radius r2 is the radius R2 of the small gear 52a, and the thickness t2 of the auxiliary rail 51c is the tooth thickness of the small gear 52a. The meshing with the small gear 52a and the meshing with the bevel gears 52b and 52c are continuous.
[0064]
According to the present embodiment, first, in FIG. 7, the overhead wire traveling device 51a can move up and down structures such as utility poles and steel towers, so if the part you want to check in detail is down, you can go down and check from the vicinity, Since it is possible to go back and forth between different floors of the building, the entire building can be inspected with one overhead line traveling device 51a.
[0065]
Next, as shown in FIG. 8, the means for changing the engagement radius r with the auxiliary rail wheel 52 is only the change of the thickness t of the auxiliary rail 51d, so that the speed ratio of the overhead wire traveling device 51a can be adjusted at low cost. Further, since the driving propulsion force can be increased only when the overhead wire traveling device 51a moves on the inclined auxiliary rail 51c, the drive having a larger capacity than necessary for climbing without lowering the traveling speed in the horizontal direction. There is no need to prepare a source.
[0066]
Further, the front and rear auxiliary rail wheels 52f and 52r do not slide on the auxiliary rail 51c where the meshing radius r of the auxiliary rail wheel 52 changes, so that the auxiliary rail wheel 52 and the auxiliary rail 51c are worn or vibrated. There is nothing. In FIG. 9A, there is no speed difference in the transfer from the overhead line 1 to the auxiliary rail 51c of the overhead line traveling device 51a, and the transfer is smoothly performed without causing vibration.
[0067]
Further, in FIG. 9B of the uphill section, the overhead wire traveling device 51a climbs while firmly meshing with the auxiliary rail 51c with the small gear 52a, and the auxiliary rail 51d meshes with the bevel gears 52b and 52c from the small gear 52a in the shift section. Continuously transitions smoothly.
[0068]
FIG. 10 is a schematic diagram showing the basic configuration of the second embodiment of the overhead line traveling system 60 according to the present invention, and FIG. 11 is a detailed view of the mechanism of the overhead line traveling apparatus 60a in the same embodiment. In addition, since the main part of the mechanism of the overhead wire traveling device 60a, the auxiliary rail 68, and the overhead wire 1 are the same as the basic configuration described above, the description thereof is omitted.
[0069]
 As shown in FIG. 10, the overhead wire 61 is a simple support component.61aThe auxiliary rail is not provided in the case of a structure 62 such as a steel tower or a utility pole that is supported by the above and the overhead wire 61b and the overhead wire 61c to be transferred are substantially straight.Here, the support component 61a is configured such that a lever is attached to a U-shaped member as shown in the figure, and an overhead wire is attached to the insulator to support only gravity, and is used where the overhead wire is linearly continuous. It is done.
[0070]
The overhead wire travel device 60 a includes a sled-shaped guide 65 attached from a clamping mechanism 64 on the side of the cage of each drive wheel 63. In addition, in the structure 66 such as a steel tower that suspends a sharply bent or branched overhead wire and the structure 67 such as a steel tower that is supported so that the overhead wire cannot simply be stepped over, the auxiliary rail as described above is used. 68 (68a, 68b) is provided.
[0071]
Further, as shown in FIG. 11, the circulation belt 65a is configured to be circulated along the edge on the edge of the sled guide 65, and from the output roller 63a of the drive wheel 63 to the drive pulley 65b of the circulation belt 65a. By transmitting power, the circulation belt 65a is driven to circulate.
[0072]
Further, the relationship between the drive wheel 63 and the output roller 63a has a reduction ratio due to a difference in radius, and has a function of amplifying the driving force of the circulation belt 65a. Further, the warp-shaped guide 65 has a restoring spring 65c on the side to be sandwiched, and is supported by the sandwiching mechanism 64 so as to be able to translate by the guide 65d. The drive pulley 65b contacts the output roller 63a only when the sled-shaped guide 64 is pushed and spread against the restoring force of the restoring spring 65c by receiving a force on the side to be pushed and spread when the support part 61a is sandwiched and climbed over. Since it contacts or meshes with each other, power is transmitted from the drive wheel 63 to the circulation belt 65a. Further, an edge is also provided around the balancer 12, and the circulation belt 69 is configured to be freely circulated along the edge.
[0073]
Next, the operation of the overhead wire traveling device 60a of the overhead wire traveling system 60 configured as described above and the overhead wire traveling method will be described with reference to FIGS.
[0074]
 First, in FIG. 10, in the structure 62 such as a steel tower or a utility pole in which the overhead wire 61 is supported by a simple support component 61a and the overhead wire 61b and the overhead wire 61c to be transferred are straight, Sled shape guide 65 attached to the side ofCorresponds to the U-shaped member to which the insulator of the support part 61a is attached, and the sled-shaped guide 65 is pushed and expanded by the gradient along with the propulsion, and the driving wheel 63 is also expanded in conjunction with this, so that the upper and lower surfaces of the U-shaped member are Move to slip while pinching. The propulsive force at this time is output by the rear wheel when the front wheel spreads, and by the front wheel when the rear wheel spreads,You can get over sequentially.
[0075]
An auxiliary rail 68 (68a, 68b) is provided in the structure 66 such as a steel tower that suspends an overhead line having sharp bends or branches, and the structure 67 such as a steel tower that is supported so that the overhead line cannot simply be stepped over. Since it is provided, it crosses along the auxiliary rail 68 connected to the desired overhead wire 61 as in the basic configuration described above.
[0076]
In FIG. 11, the sled guide 65 can smoothly slide on the support component 61a without friction. The circulation belt 65a of the sled-shaped guide 65 generates a force that steps on the support component 61a. Since the circulation belt 65a generates a larger force that can be overcome by the drive wheels 63, the circulation belt 65a can step over the support component 61a with a strong force. When the balancer 12 comes into contact with a surrounding structure when stepping over the support component 61a, the circulation belt 69 circulates between the contacted structure and the friction is reduced.
[0077]
Normally, when traveling on the overhead wire 61, the sled guide 65 is in the reference position due to the restoring force of the restoring spring 65c, and the drive pulley 65b does not contact or mesh with the output roller 63a. The power to the belt 65a is not transmitted. When traveling on the overhead line 61, the circulation belt 65a for getting over the support part 61a does not operate.
[0078]
According to the embodiment of the present invention, in FIG. 10, the overhead wire 61 is supported by a simple support component 61a, and the overhead wire 61b before the transfer and the overhead wire 61c before the transfer are substantially straight, such as a steel tower or a utility pole. In 62, since it can get over using the sled shape guide 65, it is not necessary to provide the auxiliary rail 68. FIG. Thereby, the installation cost and maintenance cost of the auxiliary rail 68 can be saved.
[0079]
Further, in FIG. 11, the circulation belt 65a generates a greater force that can be overcome by the drive wheels 63 and steps over the support component 61a with a strong force, so that the normal traveling speed is not reduced and the traveling driving force is not increased. In order to get over, there is no need to prepare a drive source with a larger capacity than necessary.
[0080]
Further, even if the balancer 12 comes into contact with surrounding structures, the circulating belt 69 reduces the friction, so that the load on the drive source is reduced and the contact portion can be stepped over while sliding. Further, since the circulation belt 65a does not operate when traveling on the overhead wire 61, energy consumed by friction or the like can be saved as compared with the case where the circulation belt 65a is always idle.
[0081]
FIG. 12 is a schematic diagram showing the basic configuration of the third embodiment of the overhead line traveling system according to the present invention, and FIG. 13 is an explanatory view of the overhead wire replacement work of the overhead line traveling system of the same embodiment. In addition, since the main part of the mechanism of the overhead wire traveling device 70a, the auxiliary rail 70b, and the overhead wire 1 are the same as the basic configuration described above, description thereof is omitted.
[0082]
As shown in FIG. 12, when the overhead wire 1 is suspended from the top 71 a of the structure 71, a pulley 72 or the like is provided at a location where the overhead wire 1 is suspended so as to straddle the plurality of structures 71. A single overhead line 1 is suspended. An overhead wire length adjusting mechanism 73 (a winch that winds up the overhead wire or a winder that searches for the overhead wire) that changes the length of the overhead wire 1a is fixed to the structure or the ground. Further, an overhead wire guide 74 is provided for guiding the overhead wire 1 by dropping it from the top to the pulley 72 of the top 71a of the structure 71.
[0083]
Next, the operation of the overhead wire traveling device 70a and the method of replacing the overhead wire in the overhead wire traveling system 70 having such a configuration will be described with reference to FIGS.
[0084]
First, in FIG. 12, the overhead wire traveling device 70 a normally travels on the overhead wire 1, and operates the overhead wire length adjusting mechanism 73 disposed at a distance when the overhead wire traveling device 70 a reaches the inspection point. By loosening the overhead wire 1, the overhead wire traveling device 70 a can be brought closer to the inspection site below.
[0085]
In FIG. 13, when the overhead line 1 is cut, the new overhead line 1r is lowered from above, and the new overhead line 1r is guided to the pulley 72 following the overhead line guide 74. Therefore, the helicopter 75 or the like is used to replace the overhead line 1r. Can do.
[0086]
According to the present embodiment, in FIG. 12, the overhead wire traveling device 73a can be lowered by the overhead wire length adjusting mechanism 73 and brought closer to the inspection location, so the overhead wire traveling device 73a is light weight without being equipped with a special mechanism. It is small and can be monitored until just before the volcanic eruption.
[0087]
In FIG. 13, when the eruption is blown off together with the overhead traveling device 73a and the overhead line 1 is cut off by the eruption, when the volcano is in a lull state, the helicopter 75 or the like is used to quickly establish a new overhead line from above. Since it can be replaced with 1r, the overhead line traveling system 70 can be easily restored.
[0088]
【The invention's effect】
As described above, according to the present invention, only one posture control balancer is added to the overhead wire traveling device, and the number of operation axes is small and the structure is light and small. The character branching can be transferred in any direction, that is, even if the overhead line on which the overhead line traveling device runs is an urban layout line, it is possible to secure a separation distance from the adjacent electric wire and overhead ground line and avoid obstacles, so inspection work It is possible to provide an overhead line traveling system that can improve the efficiency of the above.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an outline of a basic configuration of an overhead line traveling device in an overhead line traveling system according to the present invention.
FIG. 2 is a side view seen from the X direction of FIG.
FIG. 3 is a side view in which the posture of FIG. 2 is reversed.
FIG. 4 is a schematic perspective view of a drive unit of an activation travel system.
FIG. 5 is a schematic perspective view showing a configuration of an auxiliary rail in the same basic configuration.
6 is an explanatory view showing a drive mechanism provided in the overhead wire travel device of FIG. 1. FIG.
FIG. 7 is a schematic perspective view showing the basic configuration of the first embodiment of the overhead wire traveling system according to the present invention.
8 is a detailed view showing a mechanism of the overhead wire traveling device of FIG. 7, in which FIG. 8 (a) is a view seen from the YY direction of FIG. 1, and FIG. 8 (b) is a view of FIG. The figure seen from the BB direction.
9 is a mechanism diagram of an auxiliary rail, a drive wheel, a bevel gear, and a small gear portion in the mechanism of FIG. 8, wherein FIG. 9A is a horizontal movement section, and FIG. 9B is an uphill section (deceleration section). The figure which shows the condition of).
FIG. 10 is a schematic plan view showing a basic configuration of a second embodiment of the overhead wire traveling system according to the present invention.
11 is a detailed perspective view showing the mechanism of the overhead wire traveling device of FIG. 10;
FIG. 12 is a schematic diagram showing a basic configuration of a third embodiment of an overhead wire traveling system according to the present invention.
13 is an operation explanatory view showing a method of replacing the overhead line of the overhead line traveling system of FIG. 12. FIG.
[Explanation of symbols]
51 …… Overhead traveling system
51a ... overhead wire travel device
51b …… Auxiliary rail
52 …… Auxiliary rail wheels
52a …… Small gear
52b, 52c ...... Bevel gear
52f, 52r …… Front and rear auxiliary rail wheels
53 …… Driver
53a …… Differential gear
60 …… Overhead traveling system
60a ... overhead wire travel device
61 …… Overhead wire
61a …… Supporting parts
61b …… An overhead line in front
61c …… Overhead line to change
63 …… Each drive wheel
63a …… Output roller
64 …… Pinching mechanism
65 …… Sled shape guide
65a ...... circulation belt
65b …… Drive pulley
65c …… Restore spring
65d …… Guide
66, 67 …… Structure
68 (68a, 68b) …… Auxiliary rail
70 …… Overhead running system
70a ... overhead wire travel device
70b …… Auxiliary rail
71 …… Structure
71a …… Top
72. Pulley
73 …… Overhead length adjustment mechanism
74 …… Overhead guide

Claims

An overhead line traveling system having an overhead line traveling apparatus that travels while being suspended by an auxiliary means provided so as to bypass a structure that suspends the overhead line and a traveling obstacle portion while traveling while being suspended by the overhead line. A system,
The auxiliary means is preliminarily attached to the structure of the detour path, and is configured with auxiliary rails having different thicknesses at least in part .
The overhead wire travel device is provided with driving wheels provided facing the top and bottom for traveling with the overhead wire sandwiched between front and rear ends,
Auxiliary rail wheels that are attached to each of the driving wheels, and that run while sandwiching the auxiliary rails with the shape of the meshing portion with the auxiliary rails as a valley shape ,
Rotating and supporting each drive wheel and each auxiliary rail wheel, and sandwiching either the corresponding overhead wire or the auxiliary rail so that the distance between each drive wheel and each auxiliary rail wheel opposed to each other can be freely set. A pinching mechanism that enables;
A chassis main body to which a drive unit that supports the sandwiching mechanism and transmits a rotational force to each drive wheel and each auxiliary rail wheel is attached,
A turning mechanism having a balancer and a turning drive source which are attached to the chassis main body and turn around the overhead line to control the posture to the desired auxiliary rail side together with the chassis main body so as to sandwich the auxiliary rail in the turning direction; Provided,
The auxiliary rail wheel is formed so that the meshing portion of the auxiliary rail wheel has a valley shape, and the meshing radius of the auxiliary rail wheel varies according to the thickness of the auxiliary rail, and the traveling speed and traveling of the overhead wire traveling device An overhead wire traveling system characterized in that the relationship with propulsive force is variable.

The overhead wire traveling system according to claim 1, wherein a differential gear is provided in a portion that distributes the rotational force to the auxiliary rail wheel before and after the drive unit, and averaged even if the meshing radii of the front and rear auxiliary rail wheels are different. An overhead line traveling system configured to have a traveling speed.

An overhead line traveling system having an overhead line traveling device that travels while suspended by an overhead line while traveling by being suspended by an auxiliary means provided so as to bypass a structure that suspends the overhead line and a location where the obstacle is caused to travel. Because
The auxiliary means is composed of auxiliary rails attached in advance to the structure of the detour path,
The overhead wire travel device is provided with driving wheels provided facing the top and bottom for traveling with the overhead wire sandwiched between front and rear ends,
Auxiliary rail wheels that are attached to each of the drive wheels, and run while sandwiching the auxiliary rails,
Wherein with each of the driving wheels and the respective auxiliary rail vehicle wheel for rotatably supporting, sandwiching one of the corresponding overhead line or an auxiliary rail, a freely each interval between each drive wheel and the respective auxiliary rail wheels facing the upper and lower A pinching mechanism that enables;
A chassis main body to which a drive unit that supports the sandwiching mechanism and transmits a rotational force to each drive wheel and each auxiliary rail wheel is attached,
A turning mechanism having a balancer and a turning drive source which are attached to the chassis main body and turn around the overhead line to control the posture to the desired auxiliary rail side together with the chassis main body so as to sandwich the auxiliary rail in the turning direction; Provided,
The overhead wire travel device is provided on the side of each of the driving wheel cages, provided with a restoring spring on the clamping side and supported by the clamping mechanism so as to be able to translate, and on the edge of the sled-shaped guide And a transmission mechanism for transmitting the driving force of the driving wheel to the circulation belt when the sled-shaped guide is spread against the restoring force of the restoring spring by the circulation belt freely circulated along the support part. An overhead wire traveling system characterized by that.

4. The overhead line traveling system according to claim 3 , wherein the transmission mechanism has a reduction ratio and a function of amplifying the driving force of the circulation belt.

In the structure where the overhead line is suspended via the pulley and the traveling obstacle part, the suspension is suspended by the overhead line suspended between the plurality of structures provided with the pulley at the position where the overhead line is suspended . An overhead line traveling system having an overhead line traveling device that travels suspended by auxiliary means provided so as to be detoured and performs an exploration for maintenance inspection,
The auxiliary means is composed of auxiliary rails attached in advance to the structure of the detour path,
The overhead wire travel device is provided with driving wheels provided facing the top and bottom for traveling with the overhead wire sandwiched between front and rear ends,
Auxiliary rail wheels that are attached to each of the drive wheels, and run while sandwiching the auxiliary rails,
Wherein with each of the driving wheels and the respective auxiliary rail vehicle wheel for rotatably supporting, sandwiching one of the corresponding overhead line or an auxiliary rail, a freely each interval between each drive wheel and the respective auxiliary rail wheels facing the upper and lower A pinching mechanism that enables;
A chassis main body to which a drive unit that supports the sandwiching mechanism and transmits a rotational force to each drive wheel and each auxiliary rail wheel is attached,
A turning mechanism having a balancer and a turning drive source which are attached to the chassis main body and turn around the overhead line to control the posture to the desired auxiliary rail side together with the chassis main body so as to sandwich the auxiliary rail in the turning direction; Provided,
An overhead wire traveling system comprising an overhead wire length adjusting mechanism for loosening an overhead wire between spans through the pulley .

Overhead line running system in the catenary running system of claim 5, wherein, provided on the top portion of the structure, characterized by comprising a contact wire guide for guiding the sheaves down from above the overhead wire.