JP3704480B2

JP3704480B2 - Rotary Russell snowplow

Info

Publication number: JP3704480B2
Application number: JP2001123100A
Authority: JP
Inventors: 康悦佐々木
Original assignee: 株式会社日本除雪機製作所
Priority date: 2001-04-20
Filing date: 2001-04-20
Publication date: 2005-10-12
Anticipated expiration: 2021-04-20
Also published as: JP2002317420A

Description

【０００１】
【発明の属する技術分野】
本発明は、道路上または線路上の積雪を除雪するための除雪車に関するものである。
【０００２】
【従来の技術】
道路または線路（軌道）上に降り積もった雪を除雪するための除雪車としてロータリ・ラッセル共用型の除雪車は周知である。例えば、特開平８−１６５６２３号公報には、除雪条件に応じてラッセル式除雪装置またはロータリ式除雪装置のいずれかを使うことができ、しかも、ラッセル式除雪装置を使用するときには雪を両側へ押す作業、あるいは右側または左側に片押しする作業を行うことのできるロータリ・ラッセル共用型軌道用除雪車が開示されている。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記公報に記載のロータリ・ラッセル共用型軌道用除雪車は、ラッセル翼の長さが短い（車両の幅よりも短い）ので、左右のラッセル翼により逆Ｖ形プラウを形成した場合はＶ字の角度が大きく（６０度以上）、除雪作業時における雪の分断力が弱くなってしまう。また、ラッセル翼の長さが車両の幅よりも短いので、左右のラッセル翼だけで片流れのプラウを形成することは不可能である。そのため、上記公報に記載のものは、車両本体に回動自在に支持された左右のラッセル翼の先端にさらに回動自在な先端翼を設けており、ラッセル式除雪装置を構成するための翼数が多くなり、また、各翼を回動させるアクチュエータの数が多くなり、構造が複雑化するという問題がある。また、構造が複雑なために各翼の動作制御も難しくなる。
【０００４】
さらに、翼の両面を排雪面として利用するため、翼の上下方向の中間部（翼面）にアクチュエータを装着することができず、翼の上下方向の端部、実質的には翼の上端部にアクチュエータを取り付ける構造とならざるをえない。除雪作業時に翼が受ける雪の荷重は下部で大きく、翼上端部にアクチュエータを取り付けた構造では負荷バランスが悪く、荷重への対抗力は翼自体の剛性に依存することとなり、強度面で不利である。
【０００５】
本発明は、従来のロータリ・ラッセル共用型軌道除雪車における上述の問題を解決し、構造が簡単で動作制御の容易なロータリ・ラッセル共用型軌道除雪車を提供することを課題とする。
また、ラッセル式除雪装置の強度を向上させることも本発明の課題である。
【０００６】
【課題を解決するための手段】
前記の課題は、本発明により、車両にロータリ式除雪装置を装着した除雪車であって、前記ロータリ式除雪装置の前端両側部に回動可能に軸支され前記ロータリ式除雪装置に雪を取り込むための左右一対の掻き寄せ翼と、各掻き寄せ翼を回動させるアクチュエータとを有し、前記各掻き寄せ翼の長さが車両の幅よりも長く設けられ、各掻き寄せ翼をラッセル式除雪装置のラッセル翼として使用可能とするとともに、各掻き寄せ翼だけで片流れのプラウ面が形成可能なことにより解決される。
【０００７】
また、前記の課題を解決するため、本発明は、前記左右の掻き寄せ翼先端部を車両幅方向の中央で合致させることにより、前記ロータリ式除雪装置の前方に逆Ｖ字形プラウを形成したラッセル式除雪装置が構成されることを提案する。
【０００８】
また、前記の課題を解決するため、本発明は、前記右側の掻き寄せ翼先端部を左側掻き寄せ翼の中間部に合致させることにより、車両進行方向に対して傾斜した右片流れのプラウを形成したラッセル式除雪装置が構成されることを提案する。
【０００９】
また、前記の課題を解決するため、本発明は、前記左側の掻き寄せ翼先端部を右側掻き寄せ翼の中間部に合致させることにより、車両進行方向に対して傾斜した左片流れのプラウを形成したラッセル式除雪装置が構成されることを提案する。
【００１０】
また、前記の課題を解決するため、本発明は、前記左右の掻き寄せ翼の合致部の上下で左右の掻き寄せ翼を連結する連結手段を設け、該連結手段で左右の掻き寄せ翼を連結することで左右の掻き寄せ翼と掻き寄せ翼が支持される機枠とにより三角トラス構造が構成されることを提案する。
【００１１】
また、前記の課題を解決するため、本発明は、前記左右一対の掻き寄せ翼の軸支持部に枢着された左右一対の回動可能な補助翼と、各補助翼を回動させるアクチュエータとを有することを提案する。
【００１２】
また、前記の課題を解決するため、本発明は、前記左右の掻き寄せ翼及び前記左右の補助翼を車両進行方向と平行に保持した第１の形態と、前記左右の掻き寄せ翼を車両の外側に開くとともに前記左右の補助翼を車両進行方向と平行に保持した第２の形態と、前記左右の掻き寄せ翼先端部を車両幅方向の中央で合致させて逆Ｖ字形プラウを形成し前記各補助翼を車両側方に張り出した第３の形態と、右側の掻き寄せ翼先端部を左側掻き寄せ翼の中間部に合致させるとともに前記右側の補助翼を車両側方に張り出して車両進行方向に対して傾斜した右片流れのプラウを形成した第４の形態と、左側の掻き寄せ翼先端部を右側掻き寄せ翼の中間部に合致させるとともに前記左側の補助翼を車両側方に張り出して車両進行方向に対して傾斜した左片流れのプラウを形成した第５の形態と、前記左右の掻き寄せ翼先端部を車両幅方向の中央で合致させて逆Ｖ字形プラウを形成し前記各補助翼を車両進行方向と平行に保持した第６の形態が、前記各アクチュエータの作動量として予め設定され、各形態のうちの１つの形態を選択指示することにより各形態が自動的に設定されることを提案する。
【００１３】
また、前記の課題を解決するため、本発明は、前記左右の掻き寄せ翼及び前記左右の補助翼を車両進行方向と平行に保持した第１の形態と、前記左右の掻き寄せ翼を車両の外側に開くとともに前記左右の補助翼を車両進行方向と平行に保持した第２の形態と、前記左右の掻き寄せ翼先端部を車両幅方向の中央で合致させて逆Ｖ字形プラウを形成し前記各補助翼を車両側方に張り出した第３の形態と、右側の掻き寄せ翼先端部を左側掻き寄せ翼の中間部に合致させるとともに前記右側の補助翼を車両側方に張り出して車両進行方向に対して傾斜した右片流れのプラウを形成した第４の形態と、左側の掻き寄せ翼先端部を右側掻き寄せ翼の中間部に合致させるとともに前記左側の補助翼を車両側方に張り出して車両進行方向に対して傾斜した左片流れのプラウを形成した第５の形態と、前記左右の掻き寄せ翼先端部を車両幅方向の中央で合致させて逆Ｖ字形プラウを形成し前記各補助翼を車両進行方向と平行に保持した第６の形態が、前記各アクチュエータの作動量として予め設定され、各形態が連続的に変化する際に任意の形態を選択指示することにより１つの形態が設定されることを提案する。
【００１４】
また、前記の課題を解決するため、本発明は、車両にロータリ式除雪装置を装着した除雪車であって、前記ロータリ式除雪装置の前端両側部に回動可能に軸支され前記ロータリ式除雪装置に雪を取り込むための左右一対の掻き寄せ翼と、各掻き寄せ翼を回動させるアクチュエータとを有し、前記各掻き寄せ翼を回動させて左右の掻き寄せ翼を合致させた場合に合致部の上下で左右の掻き寄せ翼を連結する連結手段を設けることを提案する。
【００１５】
また、前記の課題を解決するため、本発明は、前記連結手段により左右の掻き寄せ翼を連結した場合、左右の掻き寄せ翼と掻き寄せ翼が支持される機枠とにより三角トラス構造が構成されることを提案する。
【００１６】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
図１は、本発明の一実施形態であるロータリ・ラッセル共用型軌道除雪車の車両前部に装着された除雪装置付近を示す部分平面図である。
【００１７】
この図に示すように、車両本体１の前部にはロータリ除雪装置２が装着されている。ロータリ除雪装置２はオーガ４及びブロワ５を備え、オーガ４により雪を切り崩して掻き込むとともにブロワ５によりシュート６を介して線路脇等へ投雪する。本実施形態では、ロータリ除雪装置２の前端部両側に、ロータリ除雪装置２へ雪を取り込むための掻き寄せ翼（主翼）７Ｌ，７Ｒが回転軸１１を中心に回動可能に装着されている。主翼７Ｌ，７Ｒの長さは共に車両の幅よりも長く設定されている。また、回転軸１１には左右の補助翼８Ｌ，８Ｒが回動可能に装着されている。
【００１８】
図２に示すように、主翼７Ｌ，７Ｒと主枠１０との間には油圧シリンダ９，９がそれぞれ枢着され、各油圧シリンダを伸縮させることにより主翼７Ｌ，７Ｒを開放または閉じることが可能となっている。主翼７Ｌ，７Ｒ及び補助翼８Ｌ，８Ｒを車両進行方向Ｓと平行に保持した図１の状態は、線路脇に障害物等があるため主翼７Ｌ，７Ｒを開けない場合のロータリ除雪装置２を用いた除雪作業の状態を示している。一方、主翼７Ｌ，７Ｒを車両外側に（それぞれ車両進行方向に対する角度が約３５度に）開き補助翼８Ｌ，８Ｒを車両進行方向Ｓと平行に保持した図２の状態は、車両前方の雪を幅広く取り込んでロータリ除雪装置２により除雪作業を行う状態を示している。この図２の主翼の状態をロータリ用掻き寄せ翼と称す。主翼７Ｌ，７Ｒをロータリ用掻き寄せ翼として使用する場合、主翼７Ｌ，７Ｒの内側が除雪面となる。
【００１９】
本実施形態では、ロータリ用掻き寄せ翼を広げた状態での全幅は６０００ｍｍである。もちろん、主翼７Ｌ，７Ｒの開放角度は、最大開放角までの範囲内で任意に制御できる。左右の補助翼８Ｌ，８Ｒも油圧シリンダ１２，１２により開閉可能に構成されているが、回送時及びロータリ除雪装置２を用いた除雪作業時には補助翼８Ｌ，８Ｒを開く必要が無いので、図１，２に示すように閉じた位置に保持される。補助翼８Ｌ，８Ｒを開く場合については後述する。
【００２０】
次に、ロータリ除雪装置２を用いないラッセル式除雪を行う場合について説明する。
図３は、主翼７Ｌ，７Ｒを内側に閉じて中央位置で合致させ、ロータリ除雪装置２の前方にラッセル式除雪装置３を形成した状態を示している。このように左右の主翼７Ｌ，７Ｒが閉じているときには、左右の主翼７Ｌ，７Ｒで逆Ｖ形プラウが形成される。逆Ｖ形プラウを形成した状態を単線用ラッセル翼３Ａと称す。この状態で除雪車が進行することにより、ラッセル式除雪装置３の逆Ｖ形プラウで車両前方の雪を左右に分断し、線路の両側に押しのけて除雪する。このとき補助翼８Ｌ，８Ｒを外側に開き、車両側方に張り出すことにより、除雪する幅を広げることができる。図３に示す単線用ラッセル翼３Ａは、線路両側に除雪しても構わないとき（主に単線）に使用される。単線用ラッセル翼３Ａにおいては、左右の主翼７Ｌ，７Ｒ及び左右の補助翼８Ｌ，８Ｒのそれぞれの外側面が雪に当接する除雪面となる。なお、図３では、主翼７Ｌ，７Ｒを回動させる油圧シリンダ９，９及び補助翼８Ｌ，８Ｒを回動させる油圧シリンダ１２，１２は図示を省略している。
【００２１】
本発明では、掻き寄せ翼（主翼７Ｌ，７Ｒ）の長さが車両の幅よりも長く設けられているので、左右の掻き寄せ翼だけで逆Ｖ形プラウを形成した場合でもＶ字の角度を狭くすることができ、除雪時の雪分断力を大きくすることができる。そのため、簡単な構成で逆Ｖ形プラウを形成することができる。
【００２２】
図４は、主翼７Ｌ，７Ｒ及び右側の補助翼８Ｒにより複線用右流れラッセル翼３Ｂを形成した状態を示している。複線用右流れラッセル翼３Ｂにおいては、左側の主翼７Ｌを車両進行方向から約２０度反時計回りに回動した図示の位置に保持し、右側の主翼７Ｒを回動させて主翼７Ｒの先端を左側の主翼７Ｌのほぼ中央部に当接させる。さらに、右側の補助翼８Ｒを開くと、主翼７Ｌの先端部内側面、主翼７Ｒの外側面、補助翼８Ｒの外側面で片流れの除雪面が形成される。この片流れの除雪面は、雪を除雪車の右側に押しのける右流れラッセル翼３Ｂであり、線路右側に雪を除雪する場合に使用する。なお、図４においても、主翼７Ｌ，７Ｒを回動させる油圧シリンダ９，９及び補助翼８Ｌ，８Ｒを回動させる油圧シリンダ１２，１２は図示を省略している。
【００２３】
図５は、主翼７Ｌ，７Ｒ及び左側の補助翼８Ｌにより複線用左流れラッセル翼３Ｃを形成した状態を示している。複線用左流れラッセル翼３Ｃにおいては、右側の主翼７Ｒを車両進行方向から約２０度時計回りに回動した図示の位置に保持し、左側の主翼７Ｌを回動させて主翼７Ｌの先端を右側の主翼７Ｒのほぼ中央部に当接させる。さらに、左側の補助翼８Ｌを開くと、主翼７Ｒの先端部内側面、主翼７Ｌの外側面、補助翼８Ｌの外側面で片流れの除雪面が形成される。この片流れの除雪面は、雪を除雪車の左側に押しのける左流れラッセル翼３Ｃであり、線路左側に雪を除雪する場合に使用する。なお、図５においても、主翼７Ｌ，７Ｒを回動させる油圧シリンダ９，９及び補助翼８Ｌ，８Ｒを回動させる油圧シリンダ１２，１２は図示を省略している。
【００２４】
本発明では、掻き寄せ翼（主翼７Ｌ，７Ｒ）の長さが車両の幅よりも長く設けられているので、左右の掻き寄せ翼だけで片流れのプラウ面が形成可能であり、片流れラッセル式除雪装置を簡単な構成で形成することができる。
【００２５】
図６は、本実施形態のロータリ・ラッセル共用型軌道除雪車の回送時の状態を示すものである。この図に示すように、回送時には左右の主翼７Ｌ，７Ｒを内側に閉じて中央位置で合致させ、ロータリ除雪装置２の前方にラッセル式除雪装置３を形成し、補助翼８Ｌ，８Ｒは閉じた（車輌と平行な位置に保持する）状態とする。このように、回送時に車輌前方に逆Ｖ形プラウを形成することで、ラッセル式除雪装置（逆Ｖ形プラウ）３が鉄道車輌に必要な排障器の役目を兼ねることができる。また、回送時に左右の主翼７Ｌ，７Ｒを内側に閉じることで、曲線部走行時における除雪装置先端のオーバーハング部の車輌限界外域へのはみ出しを防止できる。このため、カーブ（曲線部）走行時に主翼７Ｌ，７Ｒの先端部がカーブ外側にはみ出すことがない。
【００２６】
このように、本実施形態のロータリ・ラッセル共用型軌道除雪車においては、図１，２に示すような主翼７Ｌ，７Ｒを平行に保持または外側に開いた状態でのロータリ除雪装置２によるロータリ除雪と、図３〜５に示すような、主翼７Ｌ，７Ｒによりラッセル式除雪装置３を形成したラッセル式除雪とを行うことが可能である。そして、ラッセル式除雪装置３としては、図３の単線用ラッセル翼（３Ａ）と、図４の複線用右流れラッセル翼（３Ｂ）と、図５の複線用左流れラッセル翼（３Ｃ）の形態をとることができる。また、図６に示すような回送姿勢をとることもできる。
【００２７】
ところで、従来、ロータリ用掻き寄せ翼をラッセル式除雪装置としても使用する場合、掻き寄せ翼の両面（内側面及び外側面）を除雪面（排雪面）として利用するため、翼面に開閉用アクチュエータ（油圧シリンダ等）を装着することができない。そのため、翼の上端部に開閉用アクチュエータを取り付ける構造となっている。この場合、除雪作業時に翼の下側にかかる荷重が大きくなり、負荷バランスが悪くなる。
【００２８】
そこで、本実施形態では、主翼７Ｌ，７Ｒの先端部及び中央部の上面及び下面にフック装着部１４，１５（図１参照、図には上面のみを示す）を設けてあり、そのフック装着部に連結フック１３（図３〜５）を装着することにより、左右の主翼７Ｌ，７Ｒが上部及び下部で連結される構造となっている。さらに、連結した左右の主翼７Ｌ，７Ｒと主枠１０とにより３角トラス構造を形成するようになっている。
【００２９】
すなわち、図３に示す単線用ラッセル翼３Ａでは、左右の主翼７Ｌ，７Ｒの先端部において上面及び下面のフック装着部１４に連結フック１３（図では上面のフックのみ示す）を装着することで、左右対称な二等辺三角形のトラスが構成される。また、図４に示す複線用右流れラッセル翼３Ｂでは、左主翼７Ｌの中央部のフック装着部１５と右主翼７Ｒの先端部のフック装着部１４に連結フック１３（図では上面のフックのみ示す）を装着することで、右流れ三角形のトラスが構成される。また、図５に示す複線用左流れラッセル翼３Ｃでは、右主翼７Ｒの中央部のフック装着部１５と左主翼７Ｌの先端部のフック装着部１４に連結フック１３（図では上面のフックのみ示す）を装着することで、左流れ三角形のトラスが構成される。
【００３０】
ラッセル式除雪装置３において上記のようなトラス構造を構成することで、ラッセル翼全体での強度を向上させることができ、各翼の変形を防止することができる。また、除雪時の負荷が分散して負荷バランスも良くなることと相俟って、主翼７Ｌ，７Ｒ及び補助翼８Ｌ，８Ｒの構造を簡素化することができる。さらに、各翼を開閉させる油圧シリンダ９，１２も小型化することができ、コスト低減及び重量低減に効果がある。
【００３１】
図７及び図８は、左右の主翼７Ｌ，７Ｒの連結構造の別例を示すものである。これらの図に示すように、右主翼７Ｒの先端部の上部と下部に、それぞれ内側に向けて突出する軸１７，１７が設けられている。一方、左主翼７Ｌの上部と下部に、主翼７Ｌの前後方向に延びるスライド溝１６，１６が穿設されている。右主翼７Ｒの軸１７，１７は左主翼７Ｌのスライド溝１６，１６を貫通し、軸先端部を溝１６，１６から突出させている。軸１７，１７の先端部には雄ネジが形成され、そこにナット１８，１８が嵌めこまれ、軸１７，１７のスライド溝１６，１６からの抜け止めがなされている。
【００３２】
このような構成の主翼７Ｌ，７Ｒの連結構造においては、軸１７，１７はスライド溝１６，１６中をスライド移動することができる（左右の主翼７Ｌ，７Ｒをそれぞれの油圧シリンダ９，９によって適宜回動させることで）。そして、左右の主翼７Ｌ，７Ｒを任意の適切な位置（角度）に停止させ、ナット１８，１８を締めることで左右の主翼７Ｌ，７Ｒを連結することができる。この連結構造においても、左右の主翼７Ｌ，７Ｒと主枠１０とにより３角トラス構造が形成され、強度向上・変形防止の効果があり、コスト低減及び重量低減に寄与することができる。
【００３３】
なお、図７，８では片面側のみ説明したが、左主翼７Ｌの先端部の上部と下部にも軸１７，１７が突設され、右主翼７Ｒの上部と下部にもスライド溝１６，１６が穿設されている（図示せず）。図８では右流れのラッセル翼で説明したが、図７，８の状態からナット１８，１８を外して右主翼７Ｒの軸１７，１７を左主翼７Ｌのスライド溝１６，１６から抜き、左右の主翼７Ｌ，７Ｒを適宜回動させて、左主翼７Ｌの軸１７，１７を右主翼７Ｒのスライド溝１６，１６（図示せず）にはめ込んでナット１８，１８を締めることによって、左流れのラッセル翼を形成することが可能である。この場合ももちろん、スライド溝１６，１６中を軸１７，１７が移動できる範囲内で、左右の主翼７Ｌ，７Ｒを任意の位置（角度）で連結保持した状態とすることができる。この連結構造により、図４及び図５の形態が可能なことは言うまでもない。また、軸１７とスライド溝１６の位置あるいは高さ等を適切に設ける（左右で干渉しないように）ことで、図３及び図６の形態をとることも可能である。
【００３４】
図８に示すように、一方の主翼７Ｌを車輌と平行な角度とし、他方の主翼７Ｒで片流れのラッセル翼を形成し、補助翼８Ｒを閉じる（車輌と平行な角度とする）ことで、図４の場合（幅４５００ｍｍ）よりも狭い除雪幅での片流れラッセル翼が構成でき、線路脇の標識等を回避する場合に有効である。もちろん、図８と反対の、すなわち左流れのラッセル翼を形成することも可能である。
【００３５】
ここでは、左右主翼のスライド機構の締結構造として軸（ボルト）１７とナット１８を用いる一例を示したが、種々の変形が可能である。また、ボルト／ナットに限らず、任意の構成で、スライド可能な左右主翼の締結を行うことができる。
【００３６】
なお、本実施形態においては、図１〜図６及び図８（図８の左右対称形を含む）の各図に示す主翼７Ｌ，７Ｒ及び補助翼８Ｌ，８Ｒの形態（回動位置）は、各油圧シリンダ９，１２の制御量として予め設定されており、除雪車両の運転席等（必要であれば車両外部に操作パネル等を設けることも可能である）から簡単に操作することができる。その操作態様としては、図１〜図６及び図８（図８の左右対称形を含む）の各図に示す主翼７Ｌ，７Ｒ及び補助翼８Ｌ，８Ｒの各形態を個別に（直接）指定することも、一連動作自動制御（各図に示す主翼７Ｌ，７Ｒ及び補助翼８Ｌ，８Ｒの各形態がシーケンシャルに変化し、その途中で指定を行う）とすることもできる。図７，８で説明した連結構造の場合、各翼の形態がとられたあとにナットを締めることで対応できる。
【００３７】
以上、本発明を図示の実施形態により説明したが、本発明はこれに限定されるものではない。例えば、主翼（及び補助翼）の大きさや回動角度、主翼（及び補助翼）を動かすアクチュエータの種類及び個数、そのアクチュエータの取り付け位置等は適宜変更することができる。
【００３８】
また、上記実施形態では左右の主翼に設けたフック装着部に連結フックを装着することで左右の主翼が連結される構成を示したが、左右の主翼を合致させたときに自動的に連結されるような構成とすることも可能である。また、左右主翼のスライド機構と締結構造も上記例に限られるものではない。
【００３９】
さらに、上記実施形態の除雪車両は軌道上を走行する軌道除雪車としたが、本発明は道路上を走行する除雪車に適用することも可能である。
【００４０】
【発明の効果】
以上説明したように、本発明のロータリ・ラッセル共用型除雪車によれば、ロータリ式除雪装置に雪を取り込むための左右一対の掻き寄せ翼の長さが車両の幅よりも長く設けられ、各掻き寄せ翼をラッセル式除雪装置のラッセル翼として使用可能なので、左右一対の掻き寄せ翼だけで片流れのプラウ形状を構成することが可能となる。また、左右一対の掻き寄せ翼だけで逆Ｖ字形プラウを形成した場合でも雪分断力が弱くならない。
【００４１】
請求項２の構成により、ロータリ式除雪装置の前方に逆Ｖ字形プラウを形成したラッセル式除雪装置が構成されるので、車両両側への除雪作業が可能な除雪車を簡単な構成で実現できる。
【００４２】
請求項３または４の構成により、車両進行方向に対して傾斜した右片流れ又は左片流れのプラウを形成したラッセル式除雪装置が構成されるので、車両一方側への除雪作業が可能な除雪車を簡単な構成で実現できる。
【００４３】
請求項５の構成により、連結手段で左右の掻き寄せ翼を連結することで左右の掻き寄せ翼と掻き寄せ翼が支持される機枠とにより三角トラス構造が構成されるので、除雪作業時の負荷バランスを改善することができ、ラッセル式除雪装置の強度を向上させることができる。
【００４４】
請求項６の構成により、補助翼を用いることで車両から離れた地点へ除雪することができる。
請求項７の構成により、左右の掻き寄せ翼及び左右の補助翼により形成される各形態がアクチュエータの作動量として予め設定され、各形態のうちの１つの形態を選択指示することにより各形態が自動的に設定されるので、必要な形態を簡単に設定することができる。
【００４５】
請求項８の構成により、左右の掻き寄せ翼及び左右の補助翼により形成される各形態がアクチュエータの作動量として予め設定され、各形態が連続的に変化する際に任意の形態を選択指示することにより１つの形態が設定されるので、必要な形態を簡単に設定することができる。
【００４６】
請求項９の構成により、各掻き寄せ翼を回動させて左右の掻き寄せ翼を合致させた場合に合致部の上下で左右の掻き寄せ翼を連結する連結手段を設けたので、ラッセル式除雪装置の強度向上させたロータリ・ラッセル共用型除雪車を実現できる。
【００４７】
請求項１０の構成により、連結手段で左右の掻き寄せ翼を連結することで左右の掻き寄せ翼と掻き寄せ翼が支持される機枠とにより三角トラス構造が構成されるので、ラッセル式除雪装置の強度を向上させることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態であるロータリ・ラッセル共用型軌道除雪車の車両前部に装着された除雪装置付近を示す部分平面図である。
【図２】ロータリ除雪装置により除雪作業を行う状態を示す部分平面図である。
【図３】逆Ｖ形プラウを形成したラッセル式除雪装置を示す部分平面図である。
【図４】右片流れのプラウを形成したラッセル式除雪装置を示す部分平面図である。
【図５】左片流れのプラウを形成したラッセル式除雪装置を示す部分平面図である。
【図６】回送時の除雪装置の状態を示す部分平面図である。
【図７】左右の主翼の連結構造の別例を示す部分側面図である。
【図８】左右の主翼の連結構造の別例を示す部分平面図である。
【符号の説明】
１車両本体
２ロータリ除雪装置
３ラッセル式除雪装置
７Ｌ，７Ｒ主翼（掻き寄せ翼）
８Ｌ，８Ｒ補助翼
９，１２油圧シリンダ（アクチュエータ）
１０主枠
１３連結フック
１４，１５フック装着部
１６スライド溝[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a snowplow for removing snow on a road or a track.
[0002]
[Prior art]
As a snowplow for removing snow that has accumulated on a road or a track (track), a rotary raschel shared type snowplow is well known. For example, in JP-A-8-165623, either a Russell type snow removal device or a rotary type snow removal device can be used depending on the snow removal conditions, and when using a Russell type snow removal device, the snow is pushed to both sides. There is disclosed a rotary raschel shared type snowplow capable of performing work or work of pushing rightward or leftward.
[0003]
[Problems to be solved by the invention]
However, since the rotary raschel shared type track snowplow described in the above publication has a short raschel blade length (shorter than the width of the vehicle), when the left and right raschel blades form inverted V-shaped plows, The angle of the letter is large (60 degrees or more), and the snow breaking force during snow removal work is weakened. Also, since the length of the Russell blade is shorter than the width of the vehicle, it is impossible to form a single-flow plow with only the left and right Russell blades. Therefore, in the above-mentioned publication, the tip of the left and right Russell blades rotatably supported by the vehicle body is further provided with tip tips that can be rotated, and the number of blades for constituting the Russell type snow removal device In addition, there is a problem that the number of actuators that rotate each blade increases and the structure becomes complicated. Further, since the structure is complicated, it is difficult to control the operation of each blade.
[0004]
Furthermore, since both sides of the wing are used as the snow drainage surface, an actuator cannot be attached to the middle part (wing surface) of the wing in the vertical direction, and the vertical end of the wing, substantially the upper end of the wing. It must be a structure that attaches an actuator to the part. The snow load that the blade receives during snow removal work is large at the lower part, and the load balance is poor in the structure where the actuator is attached to the upper end of the blade, and the resistance to the load depends on the rigidity of the blade itself, which is disadvantageous in terms of strength. is there.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in a conventional rotary and raschel shared type track snowplow, and to provide a rotary and raschel shared type track snowplow with a simple structure and easy operation control.
It is also an object of the present invention to improve the strength of the Russell snow removal device.
[0006]
[Means for Solving the Problems]
According to the present invention, there is provided a snowplow in which a rotary snow removal device is mounted on a vehicle. The snowplow is pivotally supported on both sides of a front end of the rotary snow removal device so that snow is taken into the rotary snow removal device. A pair of left and right scraper blades and an actuator for rotating each scraper blade, the length of each scraper blade being longer than the width of the vehicle, and each scraper blade being a Russell-type snow removal This is solved by being able to be used as a Russell blade of the apparatus and forming a single-flow plow surface only by each scraping blade .
[0007]
Further, in order to solve the above-mentioned problems, the present invention relates to a Russell in which an inverted V-shaped plow is formed in front of the rotary snow removal device by aligning the left and right scraping blade tips at the center in the vehicle width direction. It is proposed that a snow removal device is constructed.
[0008]
Further, in order to solve the above-mentioned problem, the present invention forms a right-side flow plow inclined with respect to the vehicle traveling direction by matching the tip of the right scraper blade with the middle portion of the left scraper blade. It is proposed that the Russell type snow removal device constructed.
[0009]
In order to solve the above-mentioned problems, the present invention forms a left-side flow plow inclined with respect to the vehicle traveling direction by matching the tip of the left scraper blade with the middle portion of the right scraper blade. It is proposed that the Russell type snow removal device constructed.
[0010]
In order to solve the above problems, the present invention provides a connecting means for connecting the left and right scraper blades above and below the mating portion of the left and right scraper blades, and the right and left scraper blades are connected by the connecting means. By doing so, we propose that a triangular truss structure is composed of the left and right scraper wings and the machine frame on which the scraper wings are supported.
[0011]
In order to solve the above-mentioned problems, the present invention provides a pair of left and right rotatable auxiliary wings pivotally attached to shaft support portions of the pair of left and right scraping wings, and an actuator for rotating each auxiliary wing. Propose to have
[0012]
In order to solve the above-described problems, the present invention provides a first embodiment in which the left and right scraping wings and the left and right auxiliary wings are held in parallel with the vehicle traveling direction, and the left and right scraping wings are installed in a vehicle. A second form in which the left and right auxiliary wings are held parallel to the vehicle traveling direction and the left and right scraping blade tips are aligned at the center in the vehicle width direction to form an inverted V-shaped plow; A third form in which each auxiliary wing projects to the side of the vehicle, and the right scraping blade tip is aligned with the middle portion of the left scraping wing, and the right auxiliary wing projects to the vehicle lateral direction. A right side flow plow that is inclined with respect to the vehicle, and a left scraper blade tip that is aligned with an intermediate portion of the right scraper blade and the left auxiliary blade projecting to the side of the vehicle. Left piece inclined to the direction of travel The fifth form in which this plow is formed and the left and right scraping blade tips are matched at the center in the vehicle width direction to form an inverted V-shaped plow, and each auxiliary wing is held parallel to the vehicle traveling direction. It is proposed that the sixth form is preset as the operation amount of each actuator, and each form is automatically set by selecting and instructing one of the forms.
[0013]
In order to solve the above-described problems, the present invention provides a first embodiment in which the left and right scraping wings and the left and right auxiliary wings are held in parallel with the vehicle traveling direction, and the left and right scraping wings are installed in a vehicle. A second form in which the left and right auxiliary wings are held parallel to the vehicle traveling direction and the left and right scraping blade tips are aligned at the center in the vehicle width direction to form an inverted V-shaped plow; A third form in which each auxiliary wing projects to the side of the vehicle, and the right scraping blade tip is aligned with the middle portion of the left scraping wing, and the right auxiliary wing projects to the vehicle lateral direction. A right side flow plow that is inclined with respect to the vehicle, and a left scraper blade tip that is aligned with an intermediate portion of the right scraper blade and the left auxiliary blade projecting to the side of the vehicle. Left piece inclined to the direction of travel The fifth form in which this plow is formed and the left and right scraping blade tips are matched at the center in the vehicle width direction to form an inverted V-shaped plow, and each auxiliary wing is held parallel to the vehicle traveling direction. The sixth mode is preset as the operation amount of each actuator, and proposes that one mode is set by selecting and instructing an arbitrary mode when each mode continuously changes.
[0014]
In order to solve the above-mentioned problem, the present invention provides a snowplow in which a rotary snow removal device is mounted on a vehicle and is pivotally supported on both sides of the front end of the rotary snow removal device. A pair of left and right scraper blades for taking snow into the device, and an actuator for rotating each scraper blade, and when the respective scraper blades are rotated to match the left and right scraper blades It is proposed to provide connecting means for connecting the left and right scraper blades above and below the mating portion.
[0015]
Further, in order to solve the above-described problems, the present invention is configured such that when the left and right scraper blades are connected by the connecting means, the right and left scraper blades and a machine frame on which the scraper blades are supported constitute a triangular truss structure. Propose to be done.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a partial plan view showing the vicinity of a snow removal device attached to the front part of a rotary / russell shared type track snowplow according to an embodiment of the present invention.
[0017]
As shown in this figure, a rotary snow removal device 2 is attached to the front portion of the vehicle body 1. The rotary snow removal device 2 includes an auger 4 and a blower 5. The auger 4 cuts and scrapes the snow, and the blower 5 throws snow on the side of the track via a chute 6. In the present embodiment, scraping blades (main wings) 7L and 7R for taking snow into the rotary snow removal device 2 are mounted on both sides of the front end portion of the rotary snow removal device 2 so as to be rotatable about the rotary shaft 11. The lengths of the main wings 7L and 7R are both set longer than the width of the vehicle. In addition, left and right auxiliary wings 8L and 8R are rotatably mounted on the rotating shaft 11.
[0018]
As shown in FIG. 2, hydraulic cylinders 9 and 9 are pivotally mounted between the main wings 7L and 7R and the main frame 10, and the main wings 7L and 7R can be opened or closed by extending or contracting each hydraulic cylinder. It has become. The main wings 7L and 7R and the auxiliary wings 8L and 8R are held parallel to the vehicle traveling direction S. The state shown in FIG. 1 uses the rotary snow removal device 2 when the main wings 7L and 7R cannot be opened because there are obstacles on the side of the track. This shows the state of snow removal work. On the other hand, the state of FIG. 2 in which the main wings 7L and 7R are opened to the outside of the vehicle (each at an angle of about 35 degrees with respect to the vehicle traveling direction) and the auxiliary wings 8L and 8R are held in parallel with the vehicle traveling direction S A state in which a wide range of snow removal operations are performed using the rotary snow removal device 2 is shown. The state of the main wing in FIG. 2 is referred to as a rotary scraping wing. When the main wings 7L and 7R are used as rotary scraping wings, the inside of the main wings 7L and 7R becomes a snow removal surface.
[0019]
In the present embodiment, the total width when the rotary scraping blade is widened is 6000 mm. Of course, the opening angles of the main wings 7L and 7R can be arbitrarily controlled within the range up to the maximum opening angle. The left and right auxiliary wings 8L and 8R are also configured to be opened and closed by the hydraulic cylinders 12 and 12. However, the auxiliary wings 8L and 8R do not need to be opened at the time of forwarding and snow removal using the rotary snow removal device 2, so FIG. , 2 are held in the closed position. The case where the auxiliary blades 8L and 8R are opened will be described later.
[0020]
Next, the case where Russell type snow removal without using the rotary snow removal device 2 is described.
FIG. 3 shows a state in which the main wings 7L and 7R are closed inward and matched at the center position, and the Russell-type snow removal device 3 is formed in front of the rotary snow removal device 2. Thus, when the left and right main wings 7L and 7R are closed, the left and right main wings 7L and 7R form inverted V-shaped plows. A state in which the inverted V-shaped plow is formed is referred to as a single-wire Russell blade 3A. As the snowplow advances in this state, the snow in front of the vehicle is divided into left and right by the inverted V-shaped plow of the Russell snow removal device 3, and the snow is removed by pushing it to both sides of the track. At this time, by opening the auxiliary wings 8L, 8R outward and projecting to the side of the vehicle, the width of snow removal can be increased. The single-wire Russell blade 3A shown in FIG. 3 is used when snow may be removed on both sides of the track (mainly a single wire). In the single-wire Russell blade 3A, the outer surfaces of the left and right main wings 7L and 7R and the left and right auxiliary wings 8L and 8R are snow removal surfaces that contact the snow. In FIG. 3, the hydraulic cylinders 9 and 9 for rotating the main wings 7L and 7R and the hydraulic cylinders 12 and 12 for rotating the auxiliary wings 8L and 8R are not shown.
[0021]
In the present invention, since the length of the scraping blades (main wings 7L, 7R) is longer than the width of the vehicle, even if the inverted V-shaped plow is formed only by the left and right scraping blades, the V-shaped angle is set. It can be narrowed and the snow breaking force during snow removal can be increased. Therefore, an inverted V-shaped plow can be formed with a simple configuration.
[0022]
FIG. 4 shows a state where the double-flow right flow Russell blade 3B is formed by the main wings 7L and 7R and the right auxiliary wing 8R. In the double-flow right-flow Russell wing 3B, the left main wing 7L is held at the illustrated position rotated about 20 degrees counterclockwise from the vehicle traveling direction, and the right main wing 7R is rotated so that the tip of the main wing 7R is moved. The left main wing 7L is brought into contact with the substantially central portion. Further, when the right auxiliary wing 8R is opened, a single-flow snow removal surface is formed on the inner surface of the tip of the main wing 7L, the outer surface of the main wing 7R, and the outer surface of the auxiliary wing 8R. This single-flow snow removal surface is a right-flow Russell blade 3B that pushes snow to the right side of the snow removal vehicle, and is used when removing snow on the right side of the track. In FIG. 4, the hydraulic cylinders 9 and 9 for rotating the main wings 7L and 7R and the hydraulic cylinders 12 and 12 for rotating the auxiliary wings 8L and 8R are not shown.
[0023]
FIG. 5 shows a state in which the double-flow left flow Russell blade 3C is formed by the main wings 7L and 7R and the left auxiliary wing 8L. In the left-flow Russell wing 3C for double track, the right main wing 7R is held at the position shown in the figure rotated about 20 degrees clockwise from the traveling direction of the vehicle, the left main wing 7L is rotated and the tip of the main wing 7L is moved to the right The main wing 7R is brought into contact with a substantially central portion. Further, when the left auxiliary wing 8L is opened, a single-flow snow removal surface is formed on the inner surface of the tip of the main wing 7R, the outer surface of the main wing 7L, and the outer surface of the auxiliary wing 8L. This single-flow snow removing surface is the left-flowing Russell blade 3C that pushes snow to the left side of the snowplow, and is used when removing snow on the left side of the track. In FIG. 5, the hydraulic cylinders 9 and 9 for rotating the main wings 7L and 7R and the hydraulic cylinders 12 and 12 for rotating the auxiliary wings 8L and 8R are not shown.
[0024]
In the present invention, since the length of the scraping blades (main wings 7L, 7R) is longer than the width of the vehicle, a single-flow plow surface can be formed with only the left and right scraping blades, and the single-flow Russell type snow removal The device can be formed with a simple configuration.
[0025]
FIG. 6 shows a state at the time of forwarding of the rotary / russell shared type track snowplow of the present embodiment. As shown in this figure, the left and right main wings 7L, 7R are closed inward and matched at the center position during forwarding, and a Russell snow removal device 3 is formed in front of the rotary snow removal device 2, and the auxiliary wings 8L, 8R are closed. (Hold in a position parallel to the vehicle). In this way, by forming the inverted V-shaped plow in front of the vehicle at the time of forwarding, the Russell type snow removal device (reverse V-shaped plow) 3 can also serve as an obstacle that is necessary for the railway vehicle. Further, by closing the left and right main wings 7L and 7R inward during forwarding, it is possible to prevent the overhang portion at the tip of the snow removal device from running out of the vehicle limit when the curved portion is running. For this reason, the tip part of the main wings 7L and 7R does not protrude outside the curve during running of the curve (curved part).
[0026]
Thus, in the rotary / russell shared type track snowplow of the present embodiment, the rotary snow removal by the rotary snow removal device 2 with the main wings 7L and 7R as shown in FIGS. 3 and 5, it is possible to perform the Russell type snow removal in which the Russell type snow removal device 3 is formed by the main wings 7 </ b> L and 7 </ b> R. As the Russell type snow removal device 3, the form of the single-line Russell blade (3A) in FIG. 3, the double-flow right-flow Russell blade (3B) in FIG. 4, and the double-flow left-flow Russell blade (3C) in FIG. Can be taken. Further, a forwarding posture as shown in FIG. 6 can be taken.
[0027]
By the way, conventionally, when using a rotary scraper blade as a Russell-type snow removal device, both sides (inner and outer surfaces) of the scraper blade are used as a snow removal surface (snow drainage surface). An actuator (such as a hydraulic cylinder) cannot be installed. Therefore, an opening / closing actuator is attached to the upper end of the wing. In this case, the load applied to the lower side of the wing during snow removal work is increased, and the load balance is deteriorated.
[0028]
Therefore, in the present embodiment, hook attachment portions 14 and 15 (see FIG. 1, only the upper surface is shown) are provided on the top and bottom surfaces of the tip and center portions of the main wings 7L and 7R. By attaching the connecting hook 13 (FIGS. 3 to 5), the left and right main wings 7L and 7R are connected at the upper part and the lower part. Further, a triangular truss structure is formed by the connected left and right main wings 7L and 7R and the main frame 10.
[0029]
That is, in the single-wire Russell wing 3A shown in FIG. 3, by attaching the connecting hook 13 (only the upper hook is shown in the figure) to the upper and lower hook mounting portions 14 at the tip portions of the left and right main wings 7L and 7R, A symmetric isosceles triangular truss is constructed. In the double-flow right-flow Russell wing 3B shown in FIG. 4, the hook 13 is connected to the hook mounting portion 15 at the center of the left main wing 7L and the hook mounting portion 14 at the tip of the right main wing 7R. ) To form a right-flowing triangular truss. In the double-flow left-flow Russell wing 3C shown in FIG. 5, the hook 13 is connected to the hook mounting portion 15 at the center of the right main wing 7R and the hook mounting portion 14 at the tip of the left main wing 7L. ) To form a left-flowing triangular truss.
[0030]
By constructing the truss structure as described above in the Russell-type snow removal device 3, the strength of the entire Russell blade can be improved, and deformation of each blade can be prevented. In addition, the structure of the main wings 7L and 7R and the auxiliary wings 8L and 8R can be simplified in combination with the fact that the load during snow removal is dispersed and the load balance is improved. Furthermore, the hydraulic cylinders 9 and 12 for opening and closing the blades can be reduced in size, which is effective in reducing cost and weight.
[0031]
7 and 8 show another example of the connecting structure of the left and right main wings 7L and 7R. As shown in these figures, shafts 17 and 17 projecting inward are provided at the upper and lower portions of the tip of the right main wing 7R, respectively. On the other hand, slide grooves 16, 16 extending in the front-rear direction of the main wing 7L are formed in the upper and lower portions of the left main wing 7L. The shafts 17 and 17 of the right main wing 7R pass through the slide grooves 16 and 16 of the left main wing 7L, and the shaft tip portion protrudes from the grooves 16 and 16. Male screws are formed at the distal ends of the shafts 17 and 17, and nuts 18 and 18 are fitted therein to prevent the shafts 17 and 17 from coming off from the slide grooves 16 and 16.
[0032]
In the connecting structure of the main wings 7L and 7R having such a configuration, the shafts 17 and 17 can slide in the slide grooves 16 and 16 (the right and left main wings 7L and 7R are appropriately moved by the hydraulic cylinders 9 and 9, respectively. By turning). The left and right main wings 7L and 7R are stopped at any appropriate position (angle) and the nuts 18 and 18 are tightened to connect the left and right main wings 7L and 7R. Also in this connection structure, a triangular truss structure is formed by the left and right main wings 7L, 7R and the main frame 10, and there is an effect of improving strength and preventing deformation, which can contribute to cost reduction and weight reduction.
[0033]
7 and 8, only one side has been described, but shafts 17 and 17 project from the upper and lower portions of the tip of the left main wing 7L, and slide grooves 16 and 16 also form the upper and lower portions of the right main wing 7R. It is drilled (not shown). In FIG. 8, the right-flowing Russell blade has been described. However, the nuts 18 and 18 are removed from the state of FIGS. 7 and 8, and the shafts 17 and 17 of the right main wing 7R are removed from the slide grooves 16 and 16 of the left main wing 7L. By rotating the main wings 7L and 7R as appropriate, the shafts 17 and 17 of the left main wing 7L are fitted into the slide grooves 16 and 16 (not shown) of the right main wing 7R, and the nuts 18 and 18 are tightened, whereby the left flow Russell. Wings can be formed. Of course, in this case, the left and right main wings 7L, 7R can be connected and held at arbitrary positions (angles) within a range in which the shafts 17, 17 can move in the slide grooves 16, 16. It goes without saying that the form of FIGS. 4 and 5 is possible by this connection structure. Further, by appropriately providing the positions or heights of the shaft 17 and the slide groove 16 (so as not to interfere with each other on the left and right), it is possible to take the forms shown in FIGS.
[0034]
As shown in FIG. 8, one main wing 7L has an angle parallel to the vehicle, the other main wing 7R forms a one-flow Russell wing, and the auxiliary wing 8R is closed (an angle parallel to the vehicle). A single-flow Russell blade with a snow removal width narrower than that in the case of 4 (width 4500 mm) can be configured, which is effective in avoiding signs or the like beside the track. Of course, it is possible to form a Russell wing opposite to that shown in FIG.
[0035]
Here, an example in which the shaft (bolt) 17 and the nut 18 are used as the fastening structure of the slide mechanism of the left and right main wings is shown, but various modifications are possible. Further, not only bolts / nuts but also slidable left and right main wings can be fastened with an arbitrary configuration.
[0036]
In the present embodiment, the main wings 7L and 7R and the auxiliary wings 8L and 8R shown in each of FIGS. 1 to 6 and FIG. Control amounts for the hydraulic cylinders 9 and 12 are set in advance, and can be easily operated from a driver's seat of a snow removal vehicle or the like (an operation panel or the like can be provided outside the vehicle if necessary). As the operation mode, the main wings 7L and 7R and the auxiliary wings 8L and 8R shown in FIGS. 1 to 6 and FIG. 8 (including the symmetrical shape in FIG. 8) are individually (directly) designated. In addition, a series of automatic operation control (the main wings 7L and 7R and the auxiliary wings 8L and 8R shown in each figure are sequentially changed and designated in the middle thereof) can be performed. In the case of the connecting structure described with reference to FIGS. 7 and 8, this can be dealt with by tightening the nut after each wing has been formed.
[0037]
As mentioned above, although this invention was demonstrated by embodiment of illustration, this invention is not limited to this. For example, the size and rotation angle of the main wing (and auxiliary wing), the type and number of actuators that move the main wing (and auxiliary wing), the mounting position of the actuator, and the like can be changed as appropriate.
[0038]
In the above embodiment, the configuration is shown in which the left and right main wings are connected by attaching the connecting hooks to the hook mounting portions provided on the left and right main wings. However, when the left and right main wings are matched, they are automatically connected. It is also possible to adopt such a configuration. Further, the sliding mechanism and fastening structure of the left and right main wings are not limited to the above example.
[0039]
Furthermore, although the snow removal vehicle of the above embodiment is a track snow removal vehicle that travels on a track, the present invention can also be applied to a snow removal vehicle that travels on a road.
[0040]
【The invention's effect】
As described above, according to the rotary raschel shared type snowplow of the present invention, the length of the pair of left and right scraping blades for taking snow into the rotary snow removal device is longer than the width of the vehicle, Since the scraping blade can be used as the Russell blade of the Russell-type snow removal device, a single-flow plow shape can be configured with only a pair of left and right scraping blades. Further, even when an inverted V-shaped plow is formed by only a pair of left and right scraping blades, the snow breaking force is not weakened.
[0041]
According to the second aspect of the present invention, since the Russell type snow removal device in which an inverted V-shaped plow is formed in front of the rotary type snow removal device is constructed, a snow removal vehicle capable of removing snow on both sides of the vehicle can be realized with a simple configuration.
[0042]
According to the configuration of claim 3 or 4, a Russell-type snow removal device that forms a right-side or left-side flow plow inclined with respect to the traveling direction of the vehicle is configured. Therefore, a snow removal vehicle capable of removing snow on one side of the vehicle is provided. This can be realized with a simple configuration.
[0043]
According to the configuration of claim 5, the right and left scraper blades and the machine frame on which the scraper blades are supported are configured by connecting the left and right scraper blades with the connecting means. The load balance can be improved, and the strength of the Russell snow removal device can be improved.
[0044]
According to the configuration of the sixth aspect, snow can be removed to a point away from the vehicle by using the auxiliary wing.
According to the configuration of claim 7, each form formed by the left and right scraping wings and the left and right auxiliary wings is preset as an operation amount of the actuator, and each form is selected by instructing one of the forms. Since it is automatically set, the required form can be set easily.
[0045]
According to the configuration of claim 8, each form formed by the left and right scraping wings and the left and right auxiliary wings is preset as an operation amount of the actuator, and an arbitrary form is selected and instructed when each form continuously changes. Since one form is set by this, a required form can be set easily.
[0046]
According to the structure of claim 9, when the scraper blades are rotated to match the left and right scraper blades, the connecting means for connecting the left and right scraper blades above and below the mating portion is provided. A rotary Russell shared snowplow with improved equipment strength can be realized.
[0047]
According to the structure of claim 10, the right and left scraping wings and the machine frame on which the scraping wings are supported by connecting the left and right scraping wings with the connecting means constitutes the triangular truss structure. The strength of can be improved.
[Brief description of the drawings]
FIG. 1 is a partial plan view showing the vicinity of a snow removal device attached to a front portion of a rotary / russell shared type track snow plow according to an embodiment of the present invention.
FIG. 2 is a partial plan view showing a state in which snow removal work is performed by a rotary snow removal device.
FIG. 3 is a partial plan view showing a Russell type snow removal device in which an inverted V-shaped plow is formed.
FIG. 4 is a partial plan view showing a Russell-type snow removal device in which a right-side flow plow is formed.
FIG. 5 is a partial plan view showing a Russell-type snow removal device in which a left-side flow plow is formed.
FIG. 6 is a partial plan view showing a state of the snow removal device during forwarding.
FIG. 7 is a partial side view showing another example of the connecting structure of the left and right main wings.
FIG. 8 is a partial plan view showing another example of the connecting structure of the left and right main wings.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vehicle main body 2 Rotary snow removal apparatus 3 Russell type snow removal apparatus 7L, 7R Main wing (scraping wing)
8L, 8R Auxiliary blades 9, 12 Hydraulic cylinder (actuator)
10 Main frame 13 Connecting hooks 14 and 15 Hook mounting portion 16 Slide groove

Claims

A snowplow with a rotary snowplow installed on the vehicle,
A pair of left and right scraping blades pivotally supported on both sides of the front end of the rotary snow removal device for taking snow into the rotary snow removal device, and an actuator for rotating each scraping blade;
The length of each scraper blade is longer than the width of the vehicle, and each scraper blade can be used as a Russell blade of a Russell-type snow removal device, and a single-flow plow surface can be formed with each scraper blade alone. A snow plow with a shared rotary and russell type.

The Russell-type snow removal device in which an inverted V-shaped plow is formed in front of the rotary-type snow removal device is configured by matching the left and right scraping blade tips at the center in the vehicle width direction. Item 2. A rotary raschel snowplow according to item 1.

A Russell-type snow removal device that forms a right-side flow plow inclined with respect to the vehicle traveling direction is configured by matching the tip of the right scraper blade with the middle portion of the left scraper blade. The rotary russell shared type snowplow according to claim 1.

A raschel type snow removal device is formed in which a left-side flow plow that is inclined with respect to the vehicle traveling direction is formed by matching the tip of the left scraper blade with the middle portion of the right scraper blade. The rotary raschel shared type snowplow according to claim 3.

A connecting means for connecting the left and right scraper blades above and below the mating portion of the left and right scraper blades is provided, and the left and right scraper blades and the scraper blade are supported by connecting the left and right scraper blades with the connecting means. The rotary raschel snowplow according to claim 2, wherein a triangular truss structure is configured by the machine frame.

The pair of left and right pivotable auxiliary wings pivotally attached to the shaft support portions of the pair of left and right scraping wings, and an actuator for rotating each auxiliary wing. Rotary Russell shared snowplow.

The first mode in which the left and right scraping wings and the left and right auxiliary wings are held in parallel with the vehicle traveling direction, and the left and right scraping wings are opened to the outside of the vehicle and the left and right auxiliary wings are disposed in the vehicle traveling direction. A second form that is held in parallel, and a third form in which the left and right scraper blade tips are matched at the center in the vehicle width direction to form an inverted V-shaped plow and the auxiliary wings project to the side of the vehicle. And a right scraper blade tip is aligned with an intermediate portion of the left scraper blade, and the right auxiliary blade is projected to the side of the vehicle to form a right-side flow plow that is inclined with respect to the vehicle traveling direction. The left side scraper blade tip is matched with the middle portion of the right side scraper blade, and the left auxiliary blade is projected to the side of the vehicle to form a left one-flow plow inclined with respect to the vehicle traveling direction. The fifth form and the left A sixth embodiment in which the tip of the scraper blade is aligned at the center in the vehicle width direction to form an inverted V-shaped plow and the auxiliary blades are held parallel to the vehicle traveling direction is preliminarily set as the operation amount of each actuator. 7. The rotary Russell shared snowplow according to claim 6, wherein each form is automatically set by selecting and instructing one of the forms.

The first mode in which the left and right scraping wings and the left and right auxiliary wings are held in parallel with the vehicle traveling direction, and the left and right scraping wings are opened to the outside of the vehicle and the left and right auxiliary wings are disposed in the vehicle traveling direction. A second form that is held in parallel, and a third form in which the left and right scraper blade tips are matched at the center in the vehicle width direction to form an inverted V-shaped plow and the auxiliary wings project to the side of the vehicle. And a right scraper blade tip is aligned with an intermediate portion of the left scraper blade, and the right auxiliary blade is projected to the side of the vehicle to form a right-side flow plow that is inclined with respect to the vehicle traveling direction. The left side scraper blade tip is matched with the middle portion of the right side scraper blade, and the left auxiliary blade is projected to the side of the vehicle to form a left one-flow plow inclined with respect to the vehicle traveling direction. The fifth form and the left A sixth embodiment in which the tip of the scraper blade is aligned at the center in the vehicle width direction to form an inverted V-shaped plow and the auxiliary blades are held parallel to the vehicle traveling direction is preliminarily set as the operation amount of each actuator. 7. The rotary raschel shared snowplow according to claim 6, wherein one form is set by selecting and instructing an arbitrary form when each form is continuously changed.

A snowplow with a rotary snowplow installed on the vehicle,
A pair of left and right scraping blades pivotally supported on both sides of the front end of the rotary snow removal device for taking snow into the rotary snow removal device, and an actuator for rotating each scraping blade;
A rotary russell shared type snow removal system characterized in that when the respective scraper blades are rotated to match the left and right scraper blades, a connecting means for connecting the left and right scraper blades above and below the mating portion is provided. car.

10. The triangular truss structure according to claim 9, wherein when the left and right scraper blades are connected by the connecting means, the left and right scraper blades and a machine frame on which the scraper blades are supported constitute a triangular truss structure. Rotary Russell shared snowplow.