JP3792611B2

JP3792611B2 - Rail grinding machine

Info

Publication number: JP3792611B2
Application number: JP2002180950A
Authority: JP
Inventors: 蔭山朝昭; 稲本耕介; 迫口和利; 山田正則; 細川誠二; 水野仁志; 佐藤友昭
Original assignee: East Japan Railway Co
Current assignee: East Japan Railway Co
Priority date: 2002-06-21
Filing date: 2002-06-21
Publication date: 2006-07-05
Anticipated expiration: 2022-06-21
Also published as: JP2004027499A

Description

【０００１】
【産業上の利用分野】
本発明は、レール継目熔接残部を削正（研削）するために用いるレール用削正機に関するものである。
【０００２】
【従来の技術】
レール継目熔接残部を削正するものとしては、具体例をあげるまでもなく回転する砥石を削正体とした削正機が用いられている。
【０００３】
【発明が解決しようとする課題】
レール頭部の下面を除く周面に残存するレール継目熔接残部は、列車の走行上不都合があるため、これを削正（研削）しなければならないのであるが、従来は、砥石を変位させながらレール頭部周面の適所を順次削正し、該削正作業中は、人為的に削正機を保持しなければならない構造のため、当該作業に労力を要し、かつ、煩雑な作業となり勝ちであった。
【０００４】
本発明は、レール継目熔接残部の削正作業の省力化を図り、作業能率を向上させる削正機を提供すべく創案したものである。
【０００５】
【課題を解決するための手段】
クランプ装置によってレールに着脱自在に取付ける一対の基台に、該基台間に介在させた装置本体を組付け手段によって前記レール頭部の下面を除く周面の適所に重なり合う位置に変位自在に組付けると共に、該装置本体にはレール継目熔接残部の研削ベルトを備えた削正手段を設けたことを基本的手段とする。
【０００６】
【発明の実施の形態】
図面は本発明に係る削正機の一実施形態を示し、図１は略示正面図、図２は装置本体を省略して示した略示正面図、図３は図２の底面図、図４は図１のｘ−ｘ線断面図、図５は図４のｙ−ｙ線断面図、図６はゲージ片とレールの関係を示す説明図、図７は図１の一部欠截拡大図、図８は他の個所を欠截して示した図１の一部欠截拡大図、図９は図７の側面図、図１０はクランプ装置を省略して示した図７の側面図、図１１は図７のｚ−ｚ線略示断面図、図１２は装置本体をレール頭部に沿わせて変位させた状態の図７のｚ−ｚ線略示断面図、図１３は鎖歯車装置の説明図、図１４は検出部の正面図、図１５は検出部の一部拡大図である。
【０００７】
実施形態の削正機Ａは、現場で互いに熔接した一対のレール（概し、鉄道レール）の継目熔接残部を、削正するために用いるもので、図中、１は装置本体で、装置本体１は、削正作業時に、長手方向の両側に設けたクランプ装置２，２によってレールＲに着脱可能に固定して用いるようになっており、前記両側にはそれぞれ回転ドラム３，３´を回動自在に枢着し、該回転ドラム３，３´には前記レールＲの継目熔接残部Ｒ´を削正する研削ベルト４を張設してある。
【０００８】
前記クランプ装置２は、装置本体１を介してレールＲの長手方向に沿って相対する基台３２，３２´に備えたもので、基台３２，３２´をレール頭部Ｒａを着脱自在に止着して該基台３２，３２´間に配した前記装置本体１をレールＲに間接的に取付けるものである。
【０００９】
また、クランプ装置２は、挟持レバー３３，３３´を用いた主装置と締付け螺子３４，３４を適用した補助装置とで成り、前記基台３２，３２´に設けた下端開口の凹入切欠３５に相対的に嵌合するレール頭部Ｒａをクランプすることにより基台３２，３２´をレールＲに着脱自在に止着するものである（殊に、図９）。
【００１０】
主装置を構成する前記挟持レバー３３，３３´は前記基台３２，３２´にレール頭部Ｒａを介するようにして形成したスリット３６に係合してその中間部を基台３２，３２´の下部側で回動自在に枢着して基台３２，３２´に組付けたもので、この挟持レバー３３，３３´の下部側の一端をレール頭部Ｒａの下面を接離する圧接部片３３ａ，３３´ａとする一方、一方の圧接部片３３ａの前記一端に対応する上方側の他の一端に調節材４０である一方のナット筒４０ａをピン４３´´で回動自在に取付け、他の一方の圧接部片３３´ａの前記一端に対応する上方側の他の一端に操作レバー４１の一端をピン４３´で回動自在に取付け、操作レバー４１の他の一端を前記調節材４０を構成する他の一方のナット筒４０ａ´にピン４３で回動自在に連結し、各ナット筒４０ａ，４０ａ´に両端側を互いに逆ねじにし螺杆４０ｂを螺合して前記調節材４０を構成させ、クランプ装置２の主装置としたものである。
【００１１】
クランプ装置２の前記補助装置は、基台３２，３２´にレールＲの長手方向に沿うようにして、しかも、レールＲを介在させて突設した一対の基台部片３２ｂ，３２ｂ、３２´ｂ，３２´ｂに前記締付け螺子３４を螺合して構成したものである。
【００１２】
クランプ装置２は、基台３２，３２´をその凹入切欠３５にレール頭部Ｒａを係合するようにしてレール頭部Ｒａ上に載置し、補助装置である締付け螺子３４を操作して頭部Ｒａ側面に圧接してレール頭部Ｒａを挟持させた後、主装置の操作レバー４１をレール頭部Ｒａ方向に押圧すると、挟持レバー３３，３３´が枢支ピン３７を支点に回転して圧接部片３３ａ，３３´ａがレール頭部Ｒａの下面に圧接する一方、調節材４０と操作レバー４１との接続ピン４３が、操作レバー４１と一方の挟持レバー３３´の接続ピン４３´および調節材４０と他の一方の挟持レバー３３の接続ピン４３´´より下方に位置するようにして挟持状態が保持され、レール頭部Ｒａは一対の操作レバー３３，３３´と基台３２，３２´とにより挟持され、基台３２，３２´はレールＲに固定されるのである。
【００１３】
なお、螺杆４０ｂを回転させると、逆ねじ関係で該螺杆４０ｂに螺合したナット筒４０ａ，４０ａ´は互いに近接又は離開し、この結果、挟持レバー３３，３３´はレールＲに対し近接又は離開し、レール頭部の形態に対応した、最適なクランプ状態を得られる位置調節を行うことができ、調節材４０の存在は、種々のレールに対応して削正作業を行えるという利点を得られる。
【００１４】
前記装置本体１はクランプ装置２によってレール頭部Ｒａに着脱自在に固定する基台３２，３２´間に介在させ、側面においてレールＲの長手方向に沿うように突設した支持ローラ５０を、前記基台３２，３２´を構成するカム板部３２ａ，３２´ａにレールＲを横切る方向（長手方向に直交する方向）に長くして左右対称形状にして設けたカム孔５１に係合し、装置本体１は、この支持ローラ５０がカム孔５１に案内されて移動することにより予め設定したカム孔形状に従って支持ローラ５０を中心として傾倒（回動）するようにしてある。また、支持ローラ５０のカム孔５１に沿う移動に伴って、装置本体１の下端に横設した接触部片５２はレール頭部Ｒａの上面乃至側面間を接触状態で移動して装置本体１のレール頭部Ｒａの周面に沿う移動が確実に行われ、該移動と同時にレール頭部Ｒａ周面に沿って変位（移動）する押圧ローラ１７が頭部Ｒａ周面と重なり合う研削ベルト４を押圧してレール頭部Ｒａ表面の削正が行われる。
【００１５】
そして、レール頭部Ｒａに対する装置本体１の傾倒あるいは起立（図９や図１０の状態）動作は、装置本体１の両側に設けた駆動鎖歯車（スプロケット）５３Ａ、テンション用鎖歯車（スプロケット）５３Ｂ、第一案内鎖歯車（スプロケット）５３Ｃ及び第二案内鎖歯車（スプロケット）５３Ｄに張設し、前記第一案内鎖歯車５３Ｃから延出した両端を前記カム板部３２ａ，３２´ａの両端（レールＲの横切る方向の）に止着した鎖（チェーン）５４の移動に伴う前記支持ローラ５０のカム孔５１に沿う強制移動によって行われる（なお、基台３２´側の歯車５３Ａ，５３Ｂ，５３Ｃ，５３Ｄ群は基台３２側の第二案内鎖歯車５３Ｄと軸７０を介して連けいし、基台３２側に配したモータ６３により作動する）。
【００１６】
鎖５４の移動は、装置本体１に搭載した第四駆動モータ６３による駆動鎖歯車５３Ａの駆動によって行われ、該鎖５４の移動量は駆動歯車５３Ａに連動させた装置本体傾検出装置５５によって検出され予め指示した移動量を当該検出装置５５が検出して前記第四駆動モータ６３（このモータ６３を正逆選択的に回転させることにより、例えば図１０で示した装置本体１は図面上左右のいずれかに傾くことになることは勿論である）の動作を中断させ、装置本体１は当該傾斜状態となり、この傾斜状態の保持は、前記基台３２，３２´の下端に中間部を固定手段５６によって止着し、先端を装置本体１の下端に基部を回動可能に枢着した揺動杆５８の先端に止着した紐体５７の耐荷重性によって行われる。すなわち、装置本体１に基部を回動自在に枢着し、中間部と装置本体１との間に引張りスプリング５９を配して常時水平方向に付勢させた前記揺動杆５８の先端に、前記クランプ装置２によってレール頭部Ｒａに固定状態におかれる基台３２，３２´側に一側を固定した、一定長の紐体５７の先端を止着することにより、紐体５７の、いわばレール頭部Ｒａ側の固定部側と揺動杆５８先端部間の長さによって、例えば、図１２で示すように紐体５７により装置本体１側の荷重が受けられ、先に述べた鎖歯車群によるレールＲに対する装置本体１の傾斜が当該状態で維持されるのである。
【００１７】
紐体５７は、数本の金属線を帆布で被覆したものを選択したが、弾性伸縮のしない耐荷重性の有るものであれば良い。
【００１８】
また、紐体５７は中間部を固定手段５６によって基台３２に止着した単一体で構成してあるが、一端を基台３２側に取付け、他の一端を揺動杆５８の先端に取付けるようにした構成のもの（２本）であっても良い。
【００１９】
前記研削ベルト４は、前記一方の回転ドラム３を、ベルト伝達装置５を介して前記装置本体１に搭載した駆動モータ６に連けいさせ、該駆動モータ６によって回転ドラム３を回転させることによって、前記レールＲの長手方向に沿って移動し、図示一部省略したテンション装置７の調節によってその移動が円滑に行われるようになってる。
【００２０】
この研削ベルト４の内側（無端帯状の研削ベルト４で取り囲まれる部分）には、前記レールＲの長手方向に長い支持体８を配置し、支持体８は、その長手方向の中間部に貫通させた一対の支杆９，９の端部を先端に取り付け、しかも、基部を前記装置本体１に枢軸１１によって回動自在に枢着した一対二組の支持腕１０，１０、１０´，１０´を介して前記装置本体１に組付けられ、装置本体１の片面側の前記支持腕１０，１０に枢軸１１，１１を介して連設した連けい片１２，１２を動作させることにより前記レールＲに対して近接離開するようにしてある。
【００２１】
連けい片１２は基部を前記枢軸１１を介して前記支持腕１０に接続し、自由端側の先端部を仲介片１３を介して互いに連結する一方、該先端部にはチェーン１４の端部を取り付け、このチェーン１４の移動によって前記枢軸１１を中心に揺動（回）動するようになっている。
【００２２】
チェーン１４は、前記装置本体１に搭載した第二駆動モータ１５の回動軸に連けいさせたスプロケット１５Ａとかみ合い、該スプロケット１５Ａの回動に伴って前記長手方向に沿う方向へと（図１の左右方向）移動する（この移動量は検出片６０ａで検出して演算装置１６で演算して制御装置に伝達される）。すなわち、図１において、第二駆動モータ１５の駆動によってスプロケット１５Ａが時計廻り方向に回動すると、チェーン１４はレールＲの長手方向の一側、図面上、左方向に移動し、この結果、連けい片１２は枢軸１１を中心に反時計廻り方向に揺動し、枢軸１１と一体的にした支持腕１０も反時計廻り方向に回動し、この結果、該支持腕１０の先端側に配した支杆９は支持体８を持ち上げ、支持体８はレールＲから離開する方向に移動し、また、第二駆動モータ１５を前記駆動とは逆方向に駆動させると、各部材は原位置に復帰し、さらに第二駆動モータ１５を逆方向に回動させてスプロケット１５Ａを反時計廻り方向に回動すると、チェーン１４はレールＲの長手方向の他の一側、図１の図面上、右方向に移動し、この結果、連けい片１２は枢軸１１を中心に時計廻り方向に揺動し、枢軸１１と一体的にした支持腕１０も時計廻り方向に回動し、該支持腕１０の先端側に配した支杆９は支持体を降下させ、支持体８はレールＲに近接する方向に移動するのである。
【００２３】
支持体８のレールＲに対する斯様な近接、離開操作は、支持体８に組付けた押圧ローラ１７によって押圧される研削ベルト４のレールＲの削正深さとなって現われ、実施例では、この削正深さ（切込み）量を、一方の基台３２´側の装置本体１部に設けた検出器６０（図１４、１５）の検出片６０ａがレール頭部Ｒａ周面に接触して検出棒６０ｂが計器６０ｃを出入することにより検出し、該検出量がチェーン１４の移動量として演算装置１６（ポテンションメータ）が演算して制御機器に伝達して、予め設定したプログラムに従って削正操作が行われるのである。
【００２４】
しかして、押圧ローラ１７は、前記支持体８と研削ベルト４との間に配せられ、支持体８の長手方向に沿って一対の案内レール１８，１８に沿って移動する移動材１９に回動自在に組付ける。
【００２５】
移動材１９は、前記案内レール１８に摺嵌したリニアガイド２０を備えた移動主体１９Ａに支持片１９Ｂの一端を回動自在に枢着して構成したもので、前記支持体８の長手方向（レールＲの長手方向）の両側に回動自在に軸支させたプーリ２１，２１´に巻回したタイミングベルト２２の両端をそれぞれ移動主体１９Ａに止着し、タイミングベルト２２の移動に伴われてリニアガイド２０と案内レール１８との係合関係により案内レール１８に沿って移動する。
【００２６】
タイミングベルト２２は、一方の前記プーリ２１にベルト伝達装置２３を介して連けいした第三駆動モータ２４の駆動によって前記案内レールＲ長手方向に沿って自在に移動して前記押圧ローラ１７の移動量として現われ、その移動量は削正長さとして前記ベルト伝達装置２３に連けいした削正長さ検出装置（ポテンションメータ）２５がこれを検出して、前記削正量検出装置１６と同様に前記制御装置に伝達され、検出信号を得た制御装置はプログラムに従って第三駆動モータ２４を制御し、所定の削正長さの削正作業が行われる。
【００２７】
移動主体１９Ａに対して回動自在に枢着した前記支持片１９Ｂには前記テンション装置７の調節により研削ベルト４に常時接する前記押圧ローラ１７とベアリング２６を回動自在に装置し、もとより押圧ローラ１７を研削ベルト４側に配して前記の通り該ベルト４に常時接するようにし、ベアリング２６はコイルばね２７の前記支持片１９Ｂに対する回動付勢により前記支持体８に前記案内レール１８に対して並べて設けたゲージ片２８に接する位置に配してある。
【００２８】
すなわち、移動主体１９Ａに対して支持片１９Ｂを回動自在に枢着した一方の枢軸２９には、一端を移動主体１９Ａに、他の一端を支持片１９Ｂに係止した前記コイルばね２７を巻回し、このコイルばね２７の付勢により前記支持片１９Ｂは、前記枢軸２９部を中心にして時計又は反時計廻りの一方方向に（図２或いは図５では反時計廻り方向に）回動付勢され、その回動付勢方向の先側にして支持片１９Ｂに取り付けた軸３０に前記ベアリング２６を組付け、移動材１９（移動主体１９Ａと支持片１９Ｂとで成る）の案内レール１８に沿う移動中、ベアリング２６は案内レール１８に沿わせて手配したゲージ片２８の接触面２８Ａに常時接して転動する。
【００２９】
ゲージ片２８は、支持体８に締付け螺子３１によって取替可能（着脱自在）に取り付けられ、前記ベアリング２６が接して転動する前記接触面２８ＡはレールＲの表面の削正形状に一致する形状と成し、実施形態の図６ではレールＲが全体としてやや円弧状を成し、この円弧形状を、接触面２８Ａの円弧形状に削正するようになっているが、ゲージ片は接触面の種々異なるもの中から選択して前記支持体８に着脱自在に取り付け、当該ゲージの接触面上をベアリング２６を転動させ、該接触面に合わせた形状にレールＲ表面を削正するためのものである。
【００３０】
しかして、実施形態の削正機Ａは、レールＲ（頭部Ｒａ）にクランプ装置２を用いて基台３２，３２´を固定し、第四駆動モータ６３を適宜の方向に回転させて鎖５４を動かして装置本体１をレールＲに対して適宜の角度に傾斜させて紐体５７を用いて当該状態に維持させる（装置本体１を傾斜させないで削正作業が行われる場合もあることが勿論である）。
【００３１】
駆動モータ６を駆動して回転ドラム３，３´に張設した研削ベルト４を回動、移動させ、第二駆動モータ１５を駆動して支持体８をレールＲ方向に近接させてレールＲの表面（削正面）に、移動中の研削ベルト４が接触させるようにして第三駆動モータ２４を駆動して移動材１９を案内レール１８に沿って移動させると、該移動材１９に備えたベアリング２６はゲージ片２８の接触面２８Ａに接して転動し、該接触面２８Ａの形状に従って前記レールＲの表面（熔接残部表面を含んだ）との位置を相対的に変え、従って、押圧ローラ１７は前記接触面２８Ａの形状に沿う軌跡をとって研削ベルト４を押圧してレールＲ表面の削正（研削）が行われ、第三駆動モータ２４を正逆回転方向を変えることにより、熔接残部Ｒ´の表面部を押圧ローラ１７が往復して当該部が削正され、レールＲの削正操作が行われる。
【００３２】
また、削正量（深さ）は、前記検出片６０ａの検出により前記第二駆動モータ１５が適宜動作してレール頭部Ｒａ周（表）面に対する研削ベルト４を定位置に配して定められ、削正作業が行われる。
【００３３】
所定個所の削正作業が終了したときは、再び装置本体１をレール頭部Ｒａの円周に沿うように第四駆動モータ６３で移動させて次段の削正作業を行うのである。
【００３４】
なお、ベアリング２６は、要は接触面２８Ａに接して転動してその移動が円滑に行われるものであれば良いから、左様な機能を備えた転子であれば良く、所謂ベアリングに限定する必要はない。
【００３５】
【発明の効果】
本発明は前記の通りの構成であるから、クランプ装置によってレールに基台を固定した状態で、レール頭部の下面を除く周面の継目熔接残部を自在に削正することができ、削正作業を能率的に行うことのできる削正機を提供できる。
【００３６】
また、レールに対し装置本体を自在な角度に、しかも、確実に保持して削正作業を能率的に行え、さらに、請求項２発明によれば転動子をゲージ片の接触面に接触させて転動させることにより押圧ローラの移動軌跡が形成されるから、ゲージの接触面形状をレールの削正（研削）形状に合わせることによりレール表面を設定通りの形状に自動的に削正することができ、しかも、ゲージ片は着脱自在であるから、ゲージ片を交換することによりレール表面を種々な削正形状に研削することができる。
【図面の簡単な説明】
【図１】略示正面図。
【図２】装置本体を省略して示した略示正面図。
【図３】図２の底面図。
【図４】図２のｘ−ｘ線断面図。
【図５】図４のｙ−ｙ線断面図。
【図６】ゲージ片とレールの関係を示す説明図。
【図７】図１の一部欠截拡大図。
【図８】他の個所を欠截して示した図１の一部欠截拡大図。
【図９】図７の側面図。
【図１０】クランプ装置を省略して示した図７の側面図。
【図１１】図７のｚ−ｚ線略示断面図。
【図１２】装置本体をレール頭部に沿わせて変位させた状態の図７のｚ−ｚ線略示断面図。
【図１３】鎖歯車装置の説明図。
【図１４】検出部の正面図。
【図１５】検出部の一部拡大図
【符号の説明】
１装置本体
２クランプ装置
４研削ベルト
３２，３２´ 基台[0001]
[Industrial application fields]
The present invention relates to a rail grinder used for grinding (grinding) a rail joint welding remainder.
[0002]
[Prior art]
As a means for correcting the rail seam welding remainder, a correcting machine using a rotating grindstone as a cutting body is used without needing to give a specific example.
[0003]
[Problems to be solved by the invention]
The rail seam welding remaining part remaining on the peripheral surface excluding the lower surface of the rail head is inconvenient in traveling of the train, so it must be corrected (grinded). The correct position of the rail head peripheral surface is sequentially corrected, and during the correction work, the corrector must be held artificially, so that the work is labor intensive and complicated. It was a win.
[0004]
The present invention has been devised in order to provide a correction machine that improves the work efficiency by reducing the labor of the correction work of the rail joint welding remainder.
[0005]
[Means for Solving the Problems]
A pair of bases that are detachably attached to the rail by a clamp device are assembled so that the main body of the device interposed between the bases can be displaced to an appropriate position on the peripheral surface excluding the lower surface of the rail head by an assembling means. In addition, a basic means is that the apparatus body is provided with a correcting means provided with a grinding belt of the rail joint welding remaining portion.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a front view schematically showing FIG. 1, FIG. 2 is a front view schematically showing the apparatus body omitted, and FIG. 3 is a bottom view of FIG. 4 is a cross-sectional view taken along line xx in FIG. 1, FIG. 5 is a cross-sectional view taken along line yy in FIG. 4, FIG. 6 is an explanatory view showing the relationship between the gauge piece and the rail, and FIG. FIG. 8, FIG. 8 is a partially enlarged view of FIG. 1 with other parts omitted, FIG. 9 is a side view of FIG. 7, and FIG. 10 is a side view of FIG. 11 is a schematic cross-sectional view taken along the line zz of FIG. 7, FIG. 12 is a schematic cross-sectional view taken along the line zz of FIG. 7 with the apparatus body displaced along the rail head, and FIG. FIG. 14 is a front view of the detection unit, and FIG. 15 is a partially enlarged view of the detection unit.
[0007]
The correcting machine A of the embodiment is used for correcting the welded remaining portion of a pair of rails (generally railroad rails) welded to each other at the site. In the figure, 1 is an apparatus main body, and the apparatus main body 1 is used for removably fixing to a rail R by clamping devices 2 and 2 provided on both sides in the longitudinal direction during a grinding operation, and rotating drums 3 and 3 'are respectively rotated on both sides. A grinding belt 4 is attached to the rotary drums 3 and 3 'so as to correct the seam welding residual portion R' of the rail R.
[0008]
The clamp device 2 is provided on bases 32 and 32 'facing each other along the longitudinal direction of the rail R via the device main body 1, and the bases 32 and 32' are detachably fixed to the rail head portion Ra. The apparatus main body 1 that is worn and disposed between the bases 32 and 32 'is indirectly attached to the rail R.
[0009]
The clamping device 2 is composed of a main device using the clamping levers 33 and 33 'and an auxiliary device to which the fastening screws 34 and 34 are applied, and a recess notch 35 in a lower end opening provided in the bases 32 and 32'. The base 32, 32 'is detachably fixed to the rail R by clamping the rail head portion Ra which is relatively fitted to the rail R (in particular, FIG. 9).
[0010]
The holding levers 33 and 33 'constituting the main device engage with a slit 36 formed on the bases 32 and 32' through the rail head portion Ra, and the intermediate portions thereof are formed on the bases 32 and 32 '. A pressure contact piece that pivots on the lower side and is assembled to the bases 32 and 32 'so that one end on the lower side of the holding levers 33 and 33' contacts and separates the lower surface of the rail head Ra. 33a and 33′a, and one nut cylinder 40a, which is an adjustment member 40, is rotatably attached to the other end on the upper side corresponding to the one end of the one pressure contact piece 33a by a pin 43 ″. One end of the operation lever 41 is rotatably attached to the other end on the upper side corresponding to the one end of the other one pressure contact piece 33′a by a pin 43 ′, and the other end of the operation lever 41 is connected to the adjusting member. 40 is connected to the other nut cylinder 40a 'constituting the motor 40 by a pin 43 so as to be rotatable. The adjusting member 40 is configured by making the nut cylinders 40a and 40a 'opposite to each other with the opposite ends of the nut cylinders 40a and 40a' and screwing the screw 40b, thereby forming the main device of the clamp device 2.
[0011]
The auxiliary device of the clamping device 2 includes a pair of base part pieces 32b, 32b, 32 'projecting from the bases 32, 32' along the longitudinal direction of the rail R with the rail R interposed therebetween. The fastening screws 34 are screwed to b and 32'b.
[0012]
The clamp device 2 places the bases 32 and 32 ′ on the rail head portion Ra so that the rail head portion Ra engages with the concave notch 35, and operates the fastening screw 34 as an auxiliary device. After the rail head portion Ra is clamped by pressing against the side surface of the head portion Ra, when the operation lever 41 of the main device is pressed in the direction of the rail head portion Ra, the holding levers 33 and 33 ′ rotate around the pivot pin 37 as a fulcrum. The pressure contact piece 33a, 33'a is in pressure contact with the lower surface of the rail head portion Ra, while the connection pin 43 between the adjusting member 40 and the operation lever 41 is connected to the connection lever 43 'between the operation lever 41 and one clamping lever 33'. In addition, the clamping state is maintained so as to be positioned below the connection pin 43 ″ of the adjustment member 40 and the other one of the clamping levers 33, and the rail head portion Ra includes the pair of operation levers 33, 33 ′ and the base 32, 32 'and the base 32, 2 'is being fixed to the rail R.
[0013]
When the screw 40b is rotated, the nut cylinders 40a and 40a 'screwed to the screw 40b in a reverse screw relationship are close to or separated from each other, and as a result, the holding levers 33 and 33' are close to or separated from the rail R. In addition, the position can be adjusted so as to obtain an optimum clamping state corresponding to the form of the rail head, and the presence of the adjusting material 40 can provide an advantage that the cutting operation can be performed corresponding to various rails. .
[0014]
The apparatus main body 1 is interposed between bases 32 and 32 ′ that are detachably fixed to the rail head portion Ra by a clamp device 2, and a support roller 50 that protrudes along the longitudinal direction of the rail R on the side surface. Engage with cam holes 51 provided in cam plate portions 32a and 32'a constituting the bases 32 and 32 'so as to be elongated in the direction crossing the rail R (direction perpendicular to the longitudinal direction) and left-right symmetrical, The apparatus main body 1 is tilted (rotated) around the support roller 50 according to a preset cam hole shape as the support roller 50 is guided and moved by the cam hole 51. Further, as the support roller 50 moves along the cam hole 51, the contact piece 52 laid horizontally at the lower end of the apparatus main body 1 moves in a contact state between the upper surface or the side surfaces of the rail head portion Ra. The movement along the circumferential surface of the rail head portion Ra is performed reliably, and the pressing roller 17 that is displaced (moved) along the circumferential surface of the rail head portion Ra simultaneously presses the grinding belt 4 overlapping the circumferential surface of the head portion Ra. Then, the surface of the rail head portion Ra is corrected.
[0015]
The apparatus main body 1 is tilted or raised (state shown in FIGS. 9 and 10) with respect to the rail head portion Ra. The drive chain gear (sprocket) 53A and the tension chain gear (sprocket) 53B provided on both sides of the apparatus main body 1 are used. The first guide chain gear (sprocket) 53C and the second guide chain gear (sprocket) 53D are stretched and extended from the first guide chain gear 53C to both ends of the cam plate portions 32a and 32'a ( This is performed by forcible movement along the cam hole 51 of the support roller 50 accompanying the movement of the chain (chain) 54 fixed in the direction crossing the rail R (note that the gears 53A, 53B, 53C on the base 32 'side). , 53D is connected to the second guide chain gear 53D on the base 32 side via the shaft 70 and is operated by the motor 63 disposed on the base 32 side).
[0016]
The movement of the chain 54 is performed by driving the drive chain gear 53A by the fourth drive motor 63 mounted on the apparatus main body 1, and the movement amount of the chain 54 is detected by the apparatus main body inclination detecting device 55 linked to the drive gear 53A. Then, the detection device 55 detects the amount of movement designated in advance, and the fourth drive motor 63 (by rotating the motor 63 selectively forward and reverse, for example, the device main body 1 shown in FIG. The device main body 1 is in the inclined state, and this inclined state is maintained by fixing the intermediate portion to the lower ends of the bases 32 and 32 '. This is done by the load resistance of the string body 57 which is fixed to the front end of the swing rod 58 which is fixed to the lower end of the apparatus main body 1 and whose base is pivotally attached to the lower end of the apparatus main body 1. That is, a base is pivotally attached to the apparatus main body 1, and a tension spring 59 is disposed between the intermediate part and the apparatus main body 1 so as to be always urged in the horizontal direction. By fixing the tip of a fixed-length string body 57, one side of which is fixed to the bases 32 and 32 'placed in a fixed state on the rail head portion Ra by the clamp device 2, the string body 57 is so-called. Depending on the length between the fixed portion side on the rail head portion Ra side and the tip of the swing rod 58, for example, the load on the device body 1 side is received by the string body 57 as shown in FIG. The inclination of the apparatus main body 1 with respect to the rail R by the group is maintained in this state.
[0017]
The string body 57 is selected by covering several metal wires with a canvas, but may be any one having load resistance without elastic expansion and contraction.
[0018]
The string body 57 is formed as a single body having an intermediate portion fixed to the base 32 by the fixing means 56, but one end is attached to the base 32 side and the other end is attached to the tip of the swinging rod 58. The thing of the structure made like this (two) may be sufficient.
[0019]
The grinding belt 4 connects the one rotary drum 3 to a drive motor 6 mounted on the apparatus main body 1 via a belt transmission device 5, and rotates the rotary drum 3 by the drive motor 6, thereby It moves along the longitudinal direction of the rail R, and the movement is smoothly performed by adjusting the tension device 7 (not shown).
[0020]
Inside the grinding belt 4 (the part surrounded by the endless belt-like grinding belt 4), a long support 8 is arranged in the longitudinal direction of the rail R, and the support 8 is passed through the middle part in the longitudinal direction. The pair of support arms 10, 10, 10 ′, 10 ′ having end portions of the pair of support rods 9, 9 attached to the tip, and having a base portion pivotally attached to the apparatus main body 1 by a pivot 11. Is attached to the apparatus main body 1 through the support arm 10 and 10 on one side of the apparatus main body 1, and is connected to the rail R by operating the connecting pieces 12 and 12 connected through the pivots 11 and 11. On the other hand, it is made to approach and separate.
[0021]
The connecting piece 12 has a base portion connected to the support arm 10 via the pivot 11 and a free end side end portion connected to each other via an intermediate piece 13, while an end portion of a chain 14 is attached to the leading end portion. The movement of the chain 14 causes the pivot 11 to swing (turn) around the pivot 11.
[0022]
The chain 14 meshes with a sprocket 15A connected to the rotation shaft of the second drive motor 15 mounted on the apparatus main body 1, and in the direction along the longitudinal direction as the sprocket 15A rotates (in FIG. 1). (The amount of movement is detected by the detection piece 60a, calculated by the calculation device 16, and transmitted to the control device). That is, in FIG. 1, when the sprocket 15A is rotated in the clockwise direction by the drive of the second drive motor 15, the chain 14 is moved to one side in the longitudinal direction of the rail R, leftward in the drawing. The piece 12 swings in the counterclockwise direction around the pivot 11, and the support arm 10 integrated with the pivot 11 also rotates in the counterclockwise direction. As a result, the support arm 10 is arranged on the distal end side of the support arm 10. The support 9 lifts the support 8, the support 8 moves in a direction away from the rail R, and when the second drive motor 15 is driven in the direction opposite to the drive, each member returns to the original position. When the second drive motor 15 is further rotated in the reverse direction and the sprocket 15A is rotated in the counterclockwise direction, the chain 14 is moved to the other side in the longitudinal direction of the rail R, on the right in the drawing of FIG. And this results in a piece 2 pivots around the pivot 11 in the clockwise direction, the support arm 10 integrated with the pivot 11 also rotates in the clockwise direction, and the support 9 disposed on the tip side of the support arm 10 is a support. The support 8 moves in the direction approaching the rail R.
[0023]
Such an approach and separation operation of the support 8 with respect to the rail R appears as a correction depth of the rail R of the grinding belt 4 pressed by the pressing roller 17 assembled to the support 8. The amount of cutting depth (incision) is detected when the detection piece 60a of the detector 60 (FIGS. 14 and 15) provided in one part of the apparatus main body on the side of one base 32 'comes into contact with the peripheral surface of the rail head Ra. The rod 60b detects when the meter 60c enters and exits, and the detected amount is calculated by the arithmetic unit 16 (potentiometer) as the amount of movement of the chain 14 and transmitted to the control device. Is done.
[0024]
Thus, the pressing roller 17 is disposed between the support 8 and the grinding belt 4, and is turned around the moving member 19 that moves along the pair of guide rails 18 and 18 along the longitudinal direction of the support 8. Assemble freely.
[0025]
The moving member 19 is configured by pivotally attaching one end of a support piece 19B to a moving main body 19A provided with a linear guide 20 slidably fitted on the guide rail 18, and the longitudinal direction of the support 8 ( Both ends of the timing belt 22 wound around pulleys 21 and 21 ′ rotatably supported on both sides of the rail R in the longitudinal direction) are fixed to the moving main body 19 </ b> A, and the timing belt 22 is moved. The linear guide 20 and the guide rail 18 move along the guide rail 18 due to the engagement relationship.
[0026]
The timing belt 22 is moved freely along the longitudinal direction of the guide rail R by the driving of a third drive motor 24 connected to one of the pulleys 21 via a belt transmission device 23, and is used as the movement amount of the pressing roller 17. The amount of movement is indicated as a correction length by a correction length detection device (potentiometer) 25 connected to the belt transmission device 23, and the control is performed in the same manner as the correction amount detection device 16. The control device, which is transmitted to the device and obtains the detection signal, controls the third drive motor 24 in accordance with the program and performs a cutting operation with a predetermined cutting length.
[0027]
The support piece 19B pivotally attached to the moving main body 19A is provided with the pressing roller 17 and the bearing 26 which are always in contact with the grinding belt 4 by adjusting the tension device 7, so that the pressing roller can be rotated. 17 is arranged on the grinding belt 4 side so as to be always in contact with the belt 4 as described above, and the bearing 26 is urged against the guide rail 18 by the rotating force of the coil spring 27 with respect to the support piece 19B. The gauge pieces 28 arranged side by side are arranged in contact with each other.
[0028]
That is, the coil spring 27 having one end locked to the moving main body 19A and the other end locked to the supporting piece 19B is wound around one pivot 29 on which the support piece 19B is pivotally attached to the moving main body 19A. By rotating the coil spring 27, the support piece 19B is urged to rotate in one of the clockwise and counterclockwise directions around the pivot 29 (in the counterclockwise direction in FIG. 2 or FIG. 5). Then, the bearing 26 is assembled to the shaft 30 attached to the support piece 19B on the front side in the rotational biasing direction, and along the guide rail 18 of the moving material 19 (consisting of the moving body 19A and the support piece 19B). During the movement, the bearing 26 rolls in contact with the contact surface 28A of the gauge piece 28 arranged along the guide rail 18 at all times.
[0029]
The gauge piece 28 is removably attached (detachable) to the support 8 by a fastening screw 31, and the contact surface 28 </ b> A on which the bearing 26 contacts and rolls coincides with the ground shape of the rail R. In FIG. 6 of the embodiment, the rail R has a slightly arc shape as a whole, and this arc shape is corrected to the arc shape of the contact surface 28A. Various kinds of different ones are selected and attached to the support 8 so as to be detachable, the bearing 26 is rolled on the contact surface of the gauge, and the surface of the rail R is corrected to a shape corresponding to the contact surface. It is.
[0030]
Thus, the cutting machine A according to the embodiment fixes the bases 32 and 32 'to the rail R (head Ra) using the clamp device 2, and rotates the fourth drive motor 63 in an appropriate direction. 54 is moved to incline the apparatus main body 1 at an appropriate angle with respect to the rail R and maintain this state using the string body 57 (there may be a cutting operation without inclining the apparatus main body 1 in some cases). Of course).
[0031]
The drive motor 6 is driven to rotate and move the grinding belt 4 stretched around the rotary drums 3 and 3 ′, the second drive motor 15 is driven to bring the support 8 close to the rail R direction, and the rail R When the moving material 19 is moved along the guide rail 18 by driving the third drive motor 24 so that the moving grinding belt 4 is brought into contact with the surface (cutting surface), the bearing provided in the moving material 19 26 rolls in contact with the contact surface 28A of the gauge piece 28, and changes its position relative to the surface of the rail R (including the surface of the remaining welding portion) according to the shape of the contact surface 28A. Takes a locus along the shape of the contact surface 28A and presses the grinding belt 4 to correct the surface of the rail R (grinding). The surface of R 'is pressed roller 1 7 is reciprocated to correct the portion, and the rail R is corrected.
[0032]
Further, the amount of correction (depth) is determined by appropriately operating the second drive motor 15 by the detection of the detection piece 60a and placing the grinding belt 4 on the rail head Ra circumference (front) surface at a fixed position. The correction work is performed.
[0033]
When the correction work at a predetermined location is completed, the apparatus main body 1 is moved again by the fourth drive motor 63 along the circumference of the rail head portion Ra to perform the next correction work.
[0034]
Note that the bearing 26 may be any trochanter having a function like that on the left since it only needs to roll in contact with the contact surface 28A and move smoothly, and is limited to a so-called bearing. There is no need.
[0035]
【The invention's effect】
Since the present invention is configured as described above, it is possible to freely correct the seam welding remaining portion of the peripheral surface excluding the lower surface of the rail head with the base fixed to the rail by the clamp device. It is possible to provide a correction machine that can perform work efficiently.
[0036]
Further, the device body can be held at an arbitrary angle with respect to the rail, and the cutting work can be efficiently performed by reliably holding the device body. Further, according to the invention of claim 2, the rolling element is brought into contact with the contact surface of the gauge piece. When the roller is rolled, the movement trajectory of the pressure roller is formed, and the rail surface is automatically trimmed to the set shape by matching the gauge contact surface shape with the rail grinding (grinding) shape. In addition, since the gauge piece is detachable, the rail surface can be ground into various grinding shapes by exchanging the gauge piece.
[Brief description of the drawings]
FIG. 1 is a schematic front view.
FIG. 2 is a front view schematically showing the apparatus main body.
FIG. 3 is a bottom view of FIG. 2;
4 is a cross-sectional view taken along line xx of FIG.
5 is a cross-sectional view taken along line yy of FIG.
FIG. 6 is an explanatory diagram showing a relationship between a gauge piece and a rail.
7 is an enlarged view of a part of FIG.
FIG. 8 is an enlarged view of a part of FIG. 1 with other parts omitted.
9 is a side view of FIG. 7. FIG.
10 is a side view of FIG. 7 with the clamping device omitted.
11 is a schematic cross-sectional view taken along the line zz in FIG. 7;
12 is a schematic cross-sectional view taken along the line zz of FIG. 7 in a state in which the apparatus main body is displaced along the rail head.
FIG. 13 is an explanatory diagram of a chain gear device.
FIG. 14 is a front view of a detection unit.
FIG. 15 is a partially enlarged view of the detection unit.
DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Clamp apparatus 4 Grinding belts 32 and 32 'Base

Claims

A pair of bases that are detachably attached to the rail by a clamp device are assembled so that the device main body interposed between the bases can be displaced to an appropriate position on the peripheral surface excluding the lower surface of the rail head by an assembling means. In addition, the apparatus body is provided with a correcting means provided with a grinding belt of the rail seam welding remaining portion, and further provided with a symmetrical cam hole which is long in the direction crossing the rail on the base, and the apparatus body is provided in the cam hole. The roller projecting from the base is movably engaged, and both ends of a chain stretched on a chain gear rotated by a drive motor provided in the apparatus main body are fixed to both ends of the base in the transverse direction. Furthermore, a rail shaving machine, in which a string member for preventing fall is stretched between both ends in the transverse direction and the base, and the assembly means is used.

A grinding belt that corrects the remaining portion of the rail joint welded to the main body of the apparatus is stretched along the longitudinal direction of the rail, and a pressing roller that presses the grinding belt in the rail direction is movable along the longitudinal direction. A support body that approaches and separates from the rail is assembled to the apparatus main body, and a gauge piece along the longitudinal direction is removably fastened to the support body, while the gauge piece is mainly used as a moving body. A moving member constructed by pivotally attaching a support piece that is urged to rotate in a direction is assembled so as to be movable along the longitudinal direction, and the pressing roller and the rotation attached are attached to the support piece of the moving material. The rail grinder according to claim 1, wherein a rolling element that rolls in contact with a contact surface along the longitudinal direction of the gauge piece is provided as a grinding means.