JP3545040B2

JP3545040B2 - Cylindrical inner surface cleaning device

Info

Publication number: JP3545040B2
Application number: JP10168094A
Authority: JP
Inventors: 豊村上; 照夫高橋
Original assignee: Japan Steel Works Ltd
Current assignee: Japan Steel Works Ltd
Priority date: 1994-04-18
Filing date: 1994-04-18
Publication date: 2004-07-21
Anticipated expiration: 2019-07-21
Also published as: JPH07284742A

Description

【０００１】
【産業上の利用分野】
本発明は、筒状内面清掃装置に関するものである。
【０００２】
【従来の技術及びその課題】
従来、筒状内面例えば配管内面の清掃作業は、一般に人手に頼つていた。すなわち、棒状部材の先端部にブラシを植立させた道具を使用し、これを配管内に挿入して、人力によつて軸線方向に押動又は引動を繰り返し与える。これにより、弾発力を有するブラシが配管内面を擦るので、汚れが取り除かれる。
しかしながら、このような従来の筒状内面の清掃具にあつては、人手に頼つていたため、清掃能率が著しく悪く、ひどい汚れの取り除き作業には多数人を要するという不具合があつた。
【０００３】
また、従来の筒状内面清掃装置として、実開昭６４−８０９２号公報に開示されるものがある。これは、螺旋形溝が外周に形成され、回転駆動される駆動軸を筒状内に配置し、リング状ブラシの内周に突設したガイドを駆動軸の螺旋形溝に係合させて構成し、駆動軸を回転駆動することによつてリング状ブラシを移動させ、筒状内面を軸線方向に清掃する。更に、他の従来の筒状内面清掃装置として、実開昭６４−３１３９４号公報に開示されるものがある。これは、筒状内に挿入する油圧モータと、この油圧モータによつて回転駆動されるブラシとを有し、油圧モータに洗浄油を供給する洗浄油ホースを巻取ドラムから繰り出しながら、筒状内面を軸線方向に清掃する。
【０００４】
しかしながら、このような従来の筒状内面清掃装置にあつては、清掃作業の省力化には寄与するものの、清掃能力に劣るという不具合がある。すなわち、実開昭６４−８０９２号公報に開示される筒状内面清掃装置にあつては、リング状ブラシの軸線方向への移動抵抗が大きい場合には、リング状ブラシが軸線方向に移動することなく回転のみを行う傾向を呈する。
【０００５】
一方、実開昭６４−３１３９４号公報に開示される筒状内面清掃装置にあつては、ブラシの回転軸線が筒状内面の中心軸線と直交しているため、ブラシに周速の遅い部分を生じ、筒状内面の周方向で清掃度合いが相違するという不具合があると共に、清掃能力を向上させるためにブラシに高回転を与えると、ブラシの回転反力が油圧モータに大きく作用するので、油圧モータの回転止め機構を別途に備える必要を生ずる。
【０００６】
加えて、上記従来の筒状内面清掃装置にあつては、いずれも回転するブラシによつて筒状内面を清掃する構造であるため、凹凸のある筒状内面を良好に清掃することができないという不具合がある。すなわち、凹凸部の周囲の内、ブラシの回転方向の前後に位置する箇所にブラシが接触せず、清掃不可能となる。
【０００７】
【課題を解決するための手段】
本発明は、このような従来の技術的課題に鑑みてなされたものであり、請求項１に記載した発明の構成は、被振動体１１と、該被振動体１１の外周に装着したブラシ１２，１２’と、該被振動体１１内に軸受４７，４８によつて回転自在かつ中心軸線方向の移動不可能に支持される偏心する回転振子１３ａを有し、該被振動体１１に振動を与える振動発生機構１３と、振動発生機構１３の後側に接続する回転駆動源３２と、該被振動体１１の後端部を回転可能に支持する外筒３０，３１とを備え、該回転駆動源３２による回転駆動力が該回転振子１３ａを回転させるように供給されて該被振動体１１を軸受４７，４８を介して加振することを特徴とする筒状内面清掃装置である。
請求項２に記載した発明の構成は、前記ブラシ１２の外形が、前方に向けて次第に縮径する円錐形状をなすことを特徴とする請求項１の筒状内面清掃装置である。
請求項３に記載した発明の構成は、前記外筒３０，３１の該被振動体１１よりも後側位置の外周側に、ガイドブラシ４を装着することを特徴とする請求項１又は２の筒状内面清掃装置である。
請求項４に記載した発明の構成は、前記ブラシ１２，１２’が、筒状のブラシホルダー１８，１８’にブラシ材２２を装着して構成され、該ブラシホルダー１８，１８’が、後端が該被振動体１１の段面１１ｄに当接され、前端が該被振動体１１の外周前端部に螺合させたナット部材１９によつて当接支持されていることを特徴とする請求項１，２又は３の筒状内面清掃装置である。
請求項５に記載した発明の構成は、ナット部材１９に螺合するねじ２４の先端部が、被振動体１１の凹部１１ｃに係合して回止めが施されていることを特徴とする請求項４の筒状内面清掃装置である。
請求項６に記載した発明の構成は、前記外筒３０，３１と被振動体１１との間に、防塵用のパッキング８を介在させることを特徴とする請求項１，２，３，４又は５の筒状内面清掃装置である。
【０００８】
【作用】
ブラシ１２を有する被振動体１１及び振動発生機構１３を備える筒状内面清掃装置を、被清掃面である筒状内面に挿入し、被振動体１１に内蔵した振動発生機構１３を駆動する。振動発生機構１３は、回転駆動源３２からの駆動力が伝達されて偏心する回転振子１３ａが回転駆動されて駆動される。これにより、被振動体１１が加振されるので、被振動体１１と一体のブラシ１２が振動する。この状態でブラシ１２を筒状内面の軸線方向に移動させれば、ブラシ１２が振動しながら筒状内面を擦り、清掃する。すなわち、弾性的反発力を適度に有するブラシ１２が、振動発生機構１３の高振動を受けて筒状内面に弾性的に衝突し、この衝突に伴う微小擦りが高サイクルに行われ、筒状内面が清掃される。
【０００９】
このように、筒状内面の清掃が振動するブラシ１２によつてなされるので、筒状内面に凹凸が存在する場合であつても、凹凸部の周辺に清掃不可能箇所を生じ難く、筒状内面の全面が良好に清掃される。外筒３０，３１は、被振動体１１を回転可能に支持するので、清掃作業に際して被振動体１１のみが回転し、回転駆動源３２に接続するキャブタイヤーケーブル等の連繋具に縒りを生ずることが防止される。
【００１０】
そして、請求項２に記載した発明によれば、ブラシ１２の外形が、前方に向けて次第に縮径する円錐形状をなすので、円錐形をなす筒状内面が良好に清掃される。勿論、筒状内面の円錐形に適合するブラシ１２を使用する。
請求項３に記載した発明によれば、外筒３０，３１の被振動体１１よりも後側位置の外周側に、ガイドブラシ４を装着するので、ブラシ１２，１２’による清掃作業に際し、外筒３０，３１が筒状内面に直接接触することが防止されると共に、ガイドブラシ４による清掃作用が得られる。
【００１１】
請求項４に記載した発明によれば、ブラシ１２，１２’が、筒状のブラシホルダー１８，１８’にブラシ材２２を装着して構成され、ブラシホルダー１８，１８’が、後端が被振動体１１の段面１１ｄに当接し、前端が被振動体１１の外周前端部に螺合させたナット部材１９によつて当接支持されている。このため、ブラシ１２，１２’が、堅固に取付けられると共に、ナット部材１９によつて着脱自在に取付けられる。従つて、ブラシ１２，１２’を交換することが可能である。また、請求項５に記載した発明によれば、ナット部材１９に螺合するねじ２４の先端部が、被振動体１１の凹部１１ｃに係合して回止めが施されているので、簡素な構造によつてナット部材１９、ひいてはブラシ１２，１２’の弛みが確実に防止される。
【００１２】
請求項６に記載した発明によれば、外筒３０，３１と被振動体１１との間に、防塵用のパッキング８を介在させるので、清掃作業に際して被振動体１１が回転する場合であつても、外筒３０，３１と被振動体１１との間から塵埃が侵入することが良好に防止され、外筒３０，３１内の回転駆動源３２等に塵埃が付着することが防止される。
【００１３】
【実施例】
以下、本発明の実施例について図面を参照して説明する。
図１〜図５は、本発明に係る筒状内面清掃装置の１実施例を示し、内蔵する振動発生機構１３で加振される被振動体１１を備える。被振動体１１は、ほぼ円筒状をなし、この被振動体１１の中心軸線方向の中間部の外周には、ブラシ１２を植立させる。ブラシ１２は、円錐筒状のブラシホルダー１８の外周に、図３，図４に示すようにブラシ材２２を螺旋状に数条巻き付けて構成され、ブラシホルダー１８の後端部にはＬ字状断面をなす筒状の支持部材１８ａを固着してある。ブラシ材２２の外端が形成する円錐形は、後記する被清掃面である筒状内面５の円錐形状とほぼ合致している。
【００１４】
このブラシホルダー１８を被振動体１１の中間部に外嵌させ、支持部材１８ａを被振動体１１の第１円筒面部１１ａに嵌合させ、ブラシホルダー１８の先端の円筒部１８ｃを被振動体１１の第２円筒面部１１ｂに嵌合させ、支持部材１８ａの切欠き部１８ｂに通した止めねじ４６によつて被振動体１１に後端部を相対回転不可能に取付けてある。一方、被振動体１１の前端部にナット部材１９を螺合させて、ブラシホルダー１８の円筒部１８ｃの先端を押圧して後端を被振動体１１の環状の段面１１ｄに当接させて挟圧状態で支持し、更に、ナット部材１９に螺合するねじ２４を被振動体１１の前端部の凹部１１ｃに係合させて、ナット部材１９の弛み止めを施してある。なお、被振動体１１の凹部１１ｃは、周方向に複数個形成し、また、ねじ２４には、ワイヤー等を巻付けて弛み止めを施してある。
【００１５】
ここで、ブラシ材２２は、図１，図２に示す円錐形をなす筒状内面５の汚れ状態に応じてその材質を選定するものであり、厚めの腐食物・錆に対しては鋼線ワイヤー（ピアノ線、軟鋼線、硬鋼線、炭素鋼線、ボロン鋼線、ステンレス鋼線、鉄線、めっき鋼線、より鋼線、ＰＣ鋼線）、合金鋼線ワイヤー、銅線ワイヤー、銅合金線ワイヤー（りん青銅線、洋白銅線、白銅線、ベリリウム銅線、丹銅線、黄銅線、りん脱酸銅線、タフピッチ銅線、真鍮線、快削黄銅線）、アルミニウム線ワイヤー、アルミニウム合金線ワイヤー、チタン合金線ワイヤー、チタンパラジウム合金線ワイヤー、タングステン線ワイヤー、タングステンモリブデン合金線ワイヤー、ニッケル線ワイヤー、ジコメット線ワイヤー等が採用され、腐食性の薬物、ガス等による強固な付着物、プラスチック付着物等に対しては硬質動物毛、硬質動物毛と金属線ワイヤーとの組合せ、硬質合成繊維、植物繊維、ガラス繊維等が採用され、磨き専用には、軟質動物毛、軟質合成繊維、植物繊維、綿布等が採用される。
【００１６】
他方、被振動体１１内には、中心軸線を合致させて回転軸１７が回転自在に支持される。回転軸１７は、偏心する回転振子１３ａにて構成される振動発生機構１３を前端部に一体かつ同軸に備える。偏心する回転振子１３ａは、その前後両端の軸部が、それぞれころがり軸受４７，４８により被振動体１１内に回転自在かつ中心軸線方向の移動不可能に支持され、回転軸１７が、一対のすべり軸受５０，５１により後記する第２外筒３１内に回転自在に支持されている。しかして、被振動体１１に内蔵された偏心する回転振子１３ａは、回転軸１７を回転駆動することによつて回転し、被振動体１１に周方向の振動を与える。
【００１７】
回転軸１７の後端部には、回転駆動源である電気モータ３２のモータ軸３２ａが連結される。電気モータ３２は、第１外筒３０内に固着され、そのモータ軸３２ａが、ころがり軸受５２により第１外筒３０の先端部に回転自在に支持されている。このような第１外筒３０と第２外筒３１とは、相対回転不可能にセレーション結合させると共に、第１外筒３０の外向きフランジ部と第２外筒３１の後端部とを止めねじ５５によつて結合してある。５６は、第１外筒３０と第２外筒３１との間に介在させた防塵用のシールリングである。
【００１８】
そして、電気モータ３２は、キャブタイヤケーブル３２ｂによつて電源６０に接続される。キャブタイヤケーブル３２ｂは、適度の可撓性を有し、電源６０からの電流を電気モータ３２に通電すると共に、連繋具として機能する。しかして、この連繋具であるキャブタイヤケーブル３２ｂに押動又は引動を与えることにより、被振動体１１、ブラシ１２、振動発生機構１３等からなる筒状内面清掃装置を移動させることができる。
【００１９】
この第２外筒３１と被振動体１１の後端部とは、中心軸線方向の相対移動不可能かつ相対回転可能に結合する。すなわち、被振動体１１の後端部内周面にすべり軸受５７を固着し、このすべり軸受５７の内周面にて第２外筒３１が回転自在に支持されると共に、前後両端部に内向きフランジ部を形成した環状部材５９の後端部を第２外筒３１の後端部に止めねじ２３によつて固着し、前端部の内向きフランジ部を、すべり軸受６１を介在して被振動体１１の突出部の前端面に係合させ、中心軸線方向の相対移動を抑制してある。６２は、環状部材５９の前端部外周に固着したゴム製のリング部材であり、その組付を考慮して２つ割りにした環状部材５９を一体化させる機能を有する。
【００２０】
そして、第２外筒３１の被振動体１１よりも後側位置の外周側、具体的には第２外筒３１の環状部材５９から突出する後端部には、ガイドブラシ４を装着する。ガイドブラシ４は、ブラシ材２２を植立した円筒状の支持部材３によつて構成され、支持部材３を止めねじ７で第２外筒３１の外周面に固着してあり、環状部材５９、第１外筒３０及び第２外筒３１が筒状内面５付近に直接接触することを防止すると共に、筒状内面５付近を清掃する機能を有する。このガイドブラシ４のブラシ材２２の外形は、ブラシ１２のブラシ材２２の最大外形とほぼ合致させることが望ましい。更に、被振動体１１の後端に、環状部材５９で被われた状態として、Ｖリングパッキングからなるパッキング８を環着させ、このパッキング８の後方に向けて突出する環状リップ部を、第２外筒３１の前向き環状断面に弾性的に摺接させて、この間の防塵を図りつつ相対回動を許容してある。
【００２１】
次に上記実施例の作用について説明する。
先ず、筒状内面５は、図５に示すように例えば飛翔体を発射させる発射筒１５の内面であり、発射筒１５の内面は、大径部５ａ、円錐形状をなす筒状内面５、小径部５ｂ等からなり、筒状内面５が、円錐筒状をなすブラシホルダー１８に装着したブラシ材２２の外形とほぼ適合する円錐筒状形をなし、このブラシ材２２が筒状内面５の全面に接触可能な中心軸線方向長さを有している。図２に示すようにブラシ１２を上記筒状内面５に挿入し、筒状内面５の外部に配置する電源６０によつて電気モータ３２を回転駆動する。電気モータ３２の回転駆動により、モータ軸３２ａ及び回転軸１７が回転し、偏心する回転振子１３ａが回転するので、振動発生機構１３が作動する。回転振子１３ａは、一対のころがり軸受４７，４８によつて被振動体１１内に回転自在に支持されているので、振動発生機構１３の作動によつて被振動体１１及びブラシホルダー１８が加振され、ブラシ１２が周方向に振動する。
【００２２】
これにより、各ブラシ材２２が周方向に振動しながら円錐筒状形の筒状内面５を擦り、清掃される。すなわち、弾性的反発力を適度に有する各ブラシ材２２が、筒状内面５に弾性的に衝突し、この衝突に伴う微小擦りが高サイクルに行われ、筒状内面５が清掃される。ブラシ１２は、ブラシホルダー１８の外周にブラシ材２２を螺旋状に巻き付けてあるので、ブラシ１２を備える筒状内面清掃装置が前進して各ブラシ材２２が筒状内面５に弾性的に衝突し、押し戻された後に再度前進して各ブラシ材２２が筒状内面５に弾性的に衝突する作動が繰り返されながら、円錐筒状形の筒状内面５の清掃作業が行われる。この筒状内面清掃装置の前後進に際しては、ガイドブラシ４のブラシ材２２が発射筒１５の大径部５ａに接触し、環状部材５９、第１外筒３０及び第２外筒３１が筒状内面５付近の大径部５ａに直接接触することを防止すると共に、大径部５ａを清掃するように機能する。
【００２３】
このように、各ブラシ材２２の周方向の振動と前後進とが組み合わされて、筒状内面５に存在する凹凸部の角部も良好に清掃される。なお、螺旋状ブラシの巻付け方向とモータ軸３２ａの回転方向とを逆向き、例えばブラシ１２を右巻きとし、モータ軸３２ａに左回転を与えて、ブラシ１２に周方向の振動を与えれば、ブラシ１２が前進する。キャブタイヤケーブル３２ｂからなる連繋具に押動又は引動を与え、ブラシ１２を筒状内面５の軸線方向に強制的に移動させることもできる。キャブタイヤケーブル３２ｂからなる連繋具に押動又は引動を与え、ブラシ１２に短いストロークでの前後動を強制的に与えるようにすれば、清掃機能が良好に発揮される。
【００２４】
このようにして、複雑に振動するブラシ材２２によつて筒状内面５の清掃がなされるので、筒状内面５に凹凸部、溝等が存在する場合であつても、凹凸部等の周辺に清掃不可能箇所を生じ難く、筒状内面５の全面が良好かつ均一に清掃される。勿論、ブラシ材２２に中性洗剤等を染み込ませて清掃に供すれば、清掃効果が更に向上する。
【００２５】
また、ブラシ１２による清掃作業中において、特に周方向の振動を行うブラシ１２が回転運動を併発し、ブラシホルダー１８及び被振動体１１が中心軸線回りに緩やかに回転することがある。このような場合には、被振動体１１が、すべり軸受５７の内周面に支持されながら第２外筒３１に対して回転する。その際、被振動体１１が第２外筒３１に対して中心軸線方向に前進する相対移動は、すべり軸受６１によつて支承された状態で、環状部材５９によつて抑制され、被振動体１１が第２外筒３１に対して後退する中心軸線方向の相対移動は、すべり軸受５７の後端面が第２外筒３１に当接して抑制される。被振動体１１が第２外筒３１に対して回転することにより、被振動体１１と第２外筒３１との間から塵埃が侵入し、すべり軸受５７の摺動摩擦面を摩耗させると共に電気モータ３２に塵埃が付着する傾向を呈するが、この部分からの塵埃の侵入は、Ｖリングパッキングからなるパッキング８によつて良好に防止される。
【００２６】
このように、被振動体１１が第２外筒３１に対して回転可能であるので、清掃に伴つてブラシ１２に回転運動を生ずる場合であつても、第２外筒３１、第１外筒３０及びキャブタイヤケーブル３２ｂからなる連繋具が回転することはなく、連繋具に縒りを生ずることが防止される。
【００２７】
図６には、他の構造例にかかるブラシ１２’を被振動体１１の中間部の外周に装着した筒状内面清掃装置を示す。このブラシ１２’は、円筒形をなすブラシホルダー１８’の外周に、ブラシ材２２を螺旋状に数条巻き付けて構成され、ブラシ材２２の外形が円筒形を形成している。ブラシ１２’のブラシホルダー１８’は、前記実施例のブラシホルダー１８と同様に、止めねじ４６によつて周り止めを施すと共に、被振動体１１の環状の段面１１ｄとナット部材１９とで挟着して取付けてある。
【００２８】
このブラシ１２’によれば、上記実施例と同様の作用によつて円筒形をなす筒状内面５（例えば、図５に示す発射筒１５の大径部５ａ又は小径部５ｂ）の全面が良好かつ均一に清掃される。そして、ブラシ材２２の外径を筒状内面５（大径部５ａ又は小径部５ｂ）の内径よりも僅かに大きく設定して清掃作用が得られるので、振動状態のブラシ１２’の強制的な移動作業は、各ブラシ材２２の弾発力に基づいて筒状内面５との間の摩擦力が比較的小さい状態にあることとも相まつて、軽い力で行うことができ、一人で充分である。なお、キャブタイヤケーブル３２ｂからなる連繋具に可撓性を与えてあるので、多少湾曲する筒状内面５の清掃も可能である。この筒状内面５としては、発射筒１５の他、例えば、プラスチック製品を射出成形する射出成形機又は押出機のシリンダ内面がある。また、射出成形機のシリンダ内面の先端部のノズルに接続する円錐面部に対しては、上記実施例の円錐形をなすブラシ１２を使用することができる。この種の樹脂機械では、プラスチックのグレード、色、種類等の変更に伴い、シリンダ内面に付着するプラスチックの除去清掃作業を行う必要がある。
【００２９】
ところで、上記実施例にあつては、振動発生機構１３として偏心する回転振子１３ａを備えさせ電気モータ３２にて駆動したが、各種の振動発生機構を採用し、また空気モータによつて駆動することも可能であり、被振動体１１の振動方向も周方向に限定されず、軸線方向、径方向、接線方向等あらゆる方向の振動を与えてほぼ同様の清掃作用を得ることができる。但し、空気圧式の振動発生機構１３の場合には、連繋具であるキャブタイヤケーブル３２ｂは圧力空気を送排気する２重エアーホースで、電源６０は空気源である。
【００３０】
また、ブラシ１２，１２’のブラシ材２２を進行方向と直交する方向から前後いずれかの方向に傾斜させ、これによつて振動を受けたブラシ１２，１２’が自走するように構成することもできる。更に、ブラシ１２，１２’のブラシ材２２を独立環状に装着することも可能である。また、筒状内面５は、円形断面に限られず角形断面であつてもよく、筒状内面５が角形をなす場合には、ブラシ１２，１２の各ブラシ材２２にも適合する外形を与える。
【００３１】
【発明の効果】
以上の説明によつて理解されるように、本発明によれば、簡素な構造の筒状内面清掃装置が得られ、ブラシ自体に回転を与えて清掃するものと比較して、凹凸のある筒状内面、角形断面の筒状内面等をも良好に清掃することができる。また、ブラシに積極的に回転を与えて清掃するものと比較して、筒状内面の軸線方向へのブラシの移動が確実かつ容易であり、かつ、回転反力を支持する機構が不要で構造が簡素である。
【００３２】
更に、振動発生機構を被振動体に内蔵させたので、コンパクトであると共に、振動発生機構が回転駆動源によつて駆動され、また、被振動体が直接的に加振されるので、被振動体に装着したブラシによる清掃作用が安定的に得られる。加えて、被振動体を外筒に回転可能に支持したので、被振動体の回転によつて回転駆動源に接続するキャブタイヤーケーブル等の連繋具に縒りを生ずることが防止される。
【００３３】
そして、請求項２に記載した発明によれば、円錐形をなす筒状内面が良好に清掃される。
請求項３に記載した発明によれば、外筒が筒状内面に接触して両者が損傷を受けることが防止され、外筒の耐久性が向上すると共に、ガイドブラシによる清掃作用が同時に得られ、良好な清掃状態が得られる。
請求項４に記載した発明によれば、ブラシが堅固に取付けられ、ブラシの弛みに起因する清掃能率の低下が防止されると共に、ブラシがナット部材によつて着脱自在に取付けられるので、ブラシの交換作業性に優れる。
請求項６に記載した発明によれば、外筒及び被振動体の内部に塵埃が侵入することが防止され、回転駆動源等の耐久性が良好に確保される。
【図面の簡単な説明】
【図１】本発明の１実施例に係る筒状内面清掃装置を示す断面図。
【図２】同じく筒状内面清掃装置の使用状態を示す図。
【図３】同じくブラシを示す断面図。
【図４】同じくブラシを示す図。
【図５】同じく筒状内面を示す断面図。
【図６】同じく他の構造例にかかるブラシを備える筒状内面清掃装置の要部を示す断面図。
【符号の説明】
４：ガイドブラシ、５：筒状内面、８：パッキング、１１：被振動体、１１ｃ：凹部、１１ｄ：段面、１２，１２’：ブラシ、１３：振動発生機構、１３ａ：偏心する回転振子、１７：回転軸、１８，１８’：ブラシホルダー、１９：ナット部材、２２：ブラシ材、２４：ねじ、３０：第１外筒（外筒）、３１：第２外筒（外筒）、３２：電気モータ（回転駆動源）、３２ｂ：キャブタイヤケーブル（連繋具）、４７，４８：ころがり軸受（軸受）、５９：環状部材、６０：電源。[0001]
[Industrial applications]
The present invention relates to a cylindrical inner surface cleaning device.
[0002]
[Prior art and its problems]
2. Description of the Related Art Conventionally, cleaning work for a cylindrical inner surface, for example, a pipe inner surface, generally relies on manual labor. That is, a tool having a brush planted at the tip of the rod-shaped member is used, inserted into the pipe, and repeatedly pushed or pulled in the axial direction by human power. Thus, the brush having elasticity rubs the inner surface of the pipe, so that dirt is removed.
However, such a conventional cleaning tool for the inner surface of a tube relies on manual labor, so that the cleaning efficiency is extremely poor, and a large number of people are required for the operation of removing severe dirt.
[0003]
As a conventional cylindrical inner surface cleaning device, there is one disclosed in Japanese Utility Model Laid-Open No. 64-8092. This is a configuration in which a spiral groove is formed on the outer periphery, a drive shaft that is driven to rotate is arranged in a cylinder, and a guide protruding from the inner periphery of the ring-shaped brush is engaged with the spiral groove of the drive shaft. Then, the ring-shaped brush is moved by rotating the drive shaft to clean the cylindrical inner surface in the axial direction. Further, as another conventional cylindrical inner surface cleaning device, there is one disclosed in Japanese Utility Model Laid-Open Publication No. 64-31394. This has a hydraulic motor inserted into the cylinder and a brush rotated by the hydraulic motor, and while the cleaning oil hose for supplying the cleaning oil to the hydraulic motor is fed out from the winding drum, the cylinder has a cylindrical shape. Clean the inner surface in the axial direction.
[0004]
However, such a conventional cylindrical inner surface cleaning device has a disadvantage that although it contributes to labor saving of the cleaning operation, the cleaning ability is inferior. That is, in the cylindrical inner surface cleaning device disclosed in Japanese Utility Model Laid-Open Publication No. 64-8092, when the axial movement resistance of the ring-shaped brush is large, the ring-shaped brush moves in the axial direction. And tend to rotate only.
[0005]
On the other hand, in the cylindrical inner surface cleaning device disclosed in Japanese Utility Model Laid-Open Publication No. 64-31394, since the rotation axis of the brush is orthogonal to the center axis of the cylindrical inner surface, a portion having a low peripheral speed is applied to the brush. As a result, there is a problem that the degree of cleaning differs in the circumferential direction of the cylindrical inner surface, and when a high rotation is applied to the brush in order to improve the cleaning ability, the rotation reaction force of the brush greatly acts on the hydraulic motor. It becomes necessary to separately provide a rotation stopping mechanism for the motor.
[0006]
In addition, since the conventional cylindrical inner surface cleaning device has a structure in which the cylindrical inner surface is cleaned by a rotating brush, it cannot clean the cylindrical inner surface having irregularities satisfactorily. There is a defect. In other words, the brush does not come into contact with portions located before and after in the rotation direction of the brush in the periphery of the uneven portion, so that cleaning cannot be performed.
[0007]
[Means for Solving the Problems]
The present invention has been made in view of such a conventional technical problem, and the structure of the invention described in claim 1 includes a vibrator 11 and a brush 12 mounted on the outer periphery of the vibrator 11. , 12 ′ and an eccentric rotary pendulum 13 a rotatably supported by bearings 47, 48 in the vibrating body 11 so as to be rotatable and immovable in the central axis direction. A vibration generating mechanism 13, a rotation drive source 32 connected to the rear side of the vibration generation mechanism 13, and outer cylinders 30 and 31 rotatably supporting a rear end of the vibrated body 11. A cylindrical inner surface cleaning device characterized in that a rotational driving force from a source 32 is supplied to rotate the rotary pendulum 13a and vibrates the vibrated body 11 through bearings 47 and 48 .
The configuration of the invention described in claim 2 is the cylindrical inner surface cleaning device according to claim 1 , wherein the outer shape of the brush 12 has a conical shape whose diameter gradually decreases toward the front .
Configuration of the invention described in claim 3, the outer peripheral side of the side position after the該被vibrator 11 of the outer cylinder 30 and 31, according to claim 1 or 2, characterized in that mounting the guide brush 4 It is a cylindrical inner surface cleaning device.
According to a fourth aspect of the present invention, the brushes 12, 12 'are configured by mounting the brush material 22 on cylindrical brush holders 18, 18', and the brush holders 18, 18 ' claim but which is in contact with the step surface 11d of the該被vibrator 11, the front end is characterized in that it is by connexion contact supporting a nut member 19 screwed on the outer peripheral front end of該被vibrator 11 1, 2, or 3 cylindrical inner surface cleaning devices.
The structure of the invention described in claim 5 is characterized in that the tip of the screw 24 screwed to the nut member 19 is engaged with the concave portion 11c of the vibrated body 11 and is stopped. Item 4. A cylindrical inner surface cleaning device according to item 4 .
Configuration of the invention described in claim 6, between the outer cylinder 30, 31 and driven member 11, claim 1, 2, 3, 4 or, characterized in that interposing a packing 8 dustproof 5 is a cylindrical inner surface cleaning device.
[0008]
[Action]
The cylindrical inner surface cleaning device including the vibrated body 11 having the brush 12 and the vibration generating mechanism 13 is inserted into the cylindrical inner surface that is the surface to be cleaned, and the vibration generating mechanism 13 built in the vibrated body 11 is driven. The vibration generating mechanism 13 is driven by rotation of an eccentric rotary pendulum 13a to which a driving force from a rotary drive source 32 is transmitted . As a result, the vibrated body 11 is vibrated, and the brush 12 integrated with the vibrated body 11 vibrates. If the brush 12 is moved in the axial direction of the cylindrical inner surface in this state, the brush 12 rubs and cleans the cylindrical inner surface while vibrating. That is, the brush 12 having a moderate elastic repulsion force elastically collides against the cylindrical inner surface under the high vibration of the vibration generating mechanism 13, and the minute rubbing accompanying this collision is performed in a high cycle, and the cylindrical inner surface is Is cleaned.
[0009]
As described above, since the cleaning of the cylindrical inner surface is performed by the vibrating brush 12, even if the cylindrical inner surface has irregularities, it is difficult to form an uncleanable portion around the irregularities. The entire inner surface is cleaned well. Since the outer cylinders 30 and 31 rotatably support the vibrating body 11, only the vibrating body 11 rotates during the cleaning operation, and twists may occur in a connecting tool such as a cabin ear cable connected to the rotary drive source 32. Is prevented.
[0010]
According to the second aspect of the present invention, since the outer shape of the brush 12 has a conical shape whose diameter is gradually reduced toward the front, the conical cylindrical inner surface is favorably cleaned. Of course, a brush 12 that fits the conical shape of the inner cylindrical surface is used.
According to the third aspect of the present invention, since the guide brush 4 is mounted on the outer peripheral side of the outer cylinders 30 and 31 at a position rearward of the vibrated body 11, the outer brushes 30 and 31 need not be used for cleaning by the brushes 12 and 12 '. The cylinders 30 and 31 are prevented from directly contacting the cylindrical inner surface, and the cleaning action by the guide brush 4 is obtained.
[0011]
According to the invention described in claim 4 , the brushes 12, 12 'are configured by mounting the brush material 22 on the cylindrical brush holders 18, 18', and the brush holders 18, 18 'are covered at the rear ends. The front end is in contact with the step surface 11 d of the vibrating body 11, and the front end is supported by a nut member 19 screwed to the outer peripheral front end of the vibrated body 11. For this reason, the brushes 12 and 12 ′ are firmly attached and detachably attached by the nut member 19. Therefore, it is possible to replace the brushes 12, 12 '. Further, according to the invention described in claim 5 , since the tip of the screw 24 screwed to the nut member 19 is engaged with the concave portion 11c of the vibrated body 11 and is prevented from rotating, a simple operation is achieved. The structure surely prevents the nut member 19, and thus the brushes 12, 12 'from loosening.
[0012]
According to the invention described in claim 6 , the dustproof packing 8 is interposed between the outer cylinders 30, 31 and the vibrated body 11, so that the vibrated body 11 rotates during the cleaning operation. Also, it is possible to prevent dust from entering between the outer cylinders 30 and 31 and the vibrating body 11 satisfactorily, and to prevent dust from adhering to the rotary drive source 32 and the like in the outer cylinders 30 and 31.
[0013]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show an embodiment of a cylindrical inner surface cleaning device according to the present invention, which includes a vibrated body 11 that is vibrated by a built-in vibration generating mechanism 13. The vibrated body 11 has a substantially cylindrical shape, and a brush 12 is erected on the outer periphery of an intermediate portion of the vibrated body 11 in the center axis direction. The brush 12 is formed by spirally winding a plurality of brush members 22 around an outer periphery of a conical cylindrical brush holder 18 as shown in FIGS. 3 and 4, and has an L-shape at the rear end of the brush holder 18. A cylindrical support member 18a having a cross section is fixed. The conical shape formed by the outer end of the brush material 22 substantially matches the conical shape of the cylindrical inner surface 5 which is a surface to be described later.
[0014]
The brush holder 18 is externally fitted to the intermediate portion of the vibrated body 11, the support member 18 a is fitted to the first cylindrical surface portion 11 a of the vibrated body 11, and the cylindrical portion 18 c at the tip of the brush holder 18 is attached to the vibrated body 11. The rear end portion of the supporting member 18a is attached to the vibrating member 11 by a set screw 46 which is inserted into the notch portion 18b of the supporting member 18a. On the other hand, the nut member 19 is screwed into the front end of the vibrated body 11, the front end of the cylindrical portion 18 c of the brush holder 18 is pressed, and the rear end is brought into contact with the annular step surface 11 d of the vibrated body 11. The nut member 19 is supported in a sandwiching state, and a screw 24 screwed to the nut member 19 is engaged with the concave portion 11c at the front end of the vibrated body 11 to prevent the nut member 19 from loosening. In addition, a plurality of concave portions 11c of the vibrated body 11 are formed in the circumferential direction, and a screw or the like is wound around the screw 24 to prevent loosening.
[0015]
Here, the material of the brush material 22 is selected according to the dirt condition of the cylindrical inner surface 5 having a conical shape shown in FIGS. 1 and 2, and a steel wire is used for thick corrosive substances and rust. Wire (piano wire, mild steel wire, hard steel wire, carbon steel wire, boron steel wire, stainless steel wire, iron wire, plated steel wire, twisted steel wire, PC steel wire), alloy steel wire, copper wire, copper alloy Wire wire (phosphor bronze wire, nickel-white copper wire, white copper wire, beryllium copper wire, bronze wire, brass wire, phosphorous deoxidized copper wire, tough pitch copper wire, brass wire, free-cutting brass wire), aluminum wire, aluminum alloy Wire wire, titanium alloy wire wire, titanium palladium alloy wire wire, tungsten wire wire, tungsten molybdenum alloy wire wire, nickel wire wire, dicomet wire wire, etc. Hard animal hair, a combination of hard animal hair and metal wire, hard synthetic fiber, vegetable fiber, glass fiber, etc. are adopted for hard deposits, plastic deposits, etc. , Soft synthetic fiber, vegetable fiber, cotton cloth and the like.
[0016]
On the other hand, the rotating shaft 17 is rotatably supported in the vibrated body 11 with the center axis aligned. The rotating shaft 17 has a vibration generating mechanism 13 composed of an eccentric rotating pendulum 13a integrally and coaxially at its front end. The eccentric rotary pendulum 13a has shaft portions at both front and rear ends thereof supported by rolling bearings 47 and 48 so as to be rotatable and immovable in the center axis direction in the vibrated body 11, and the rotary shaft 17 is provided with a pair of sliding members. It is rotatably supported in a second outer cylinder 31 described later by bearings 50 and 51. Thus, the eccentric rotary pendulum 13a built in the vibrated body 11 rotates by rotating the rotating shaft 17, and gives the vibrated body 11 vibration in the circumferential direction.
[0017]
A motor shaft 32a of an electric motor 32, which is a rotation drive source, is connected to a rear end of the rotation shaft 17. The electric motor 32 is fixed in the first outer cylinder 30, and the motor shaft 32 a is rotatably supported at the distal end of the first outer cylinder 30 by a rolling bearing 52. The first outer cylinder 30 and the second outer cylinder 31 are serrated and connected so that they cannot rotate relative to each other, and the outward flange portion of the first outer cylinder 30 and the rear end of the second outer cylinder 31 are stopped. They are connected by screws 55. Reference numeral 56 denotes a dust-proof seal ring interposed between the first outer cylinder 30 and the second outer cylinder 31.
[0018]
The electric motor 32 is connected to a power supply 60 by a cabtire cable 32b. The cabtire cable 32b has an appropriate flexibility, supplies current from the power supply 60 to the electric motor 32, and functions as a connecting tool. Thus, by giving a push or pull to the cabtire cable 32b, which is a connecting tool, the cylindrical inner surface cleaning device including the vibrated body 11, the brush 12, the vibration generating mechanism 13, and the like can be moved.
[0019]
The second outer cylinder 31 and the rear end of the vibrated body 11 are connected so as to be relatively immovable and relatively rotatable in the central axis direction. That is, the sliding bearing 57 is fixed to the inner peripheral surface of the rear end portion of the vibrated body 11, the second outer cylinder 31 is rotatably supported on the inner peripheral surface of the sliding bearing 57, and the inner peripheral surface faces inward at both front and rear ends. The rear end portion of the annular member 59 having the flange portion is fixed to the rear end portion of the second outer cylinder 31 with a set screw 23, and the inward flange portion at the front end portion is subjected to vibration through a slide bearing 61. It is engaged with the front end face of the protruding portion of the body 11 to suppress relative movement in the central axis direction. Reference numeral 62 denotes a rubber ring member fixed to the outer periphery of the front end portion of the annular member 59, and has a function of integrating the annular member 59 divided into two parts in consideration of its assembly.
[0020]
The guide brush 4 is mounted on the outer peripheral side of the second outer cylinder 31 at a position behind the vibrated body 11, specifically, on the rear end of the second outer cylinder 31 protruding from the annular member 59. The guide brush 4 is constituted by a cylindrical support member 3 on which the brush material 22 is erected, and the support member 3 is fixed to the outer peripheral surface of the second outer cylinder 31 with a set screw 7. It has a function of preventing the first outer cylinder 30 and the second outer cylinder 31 from directly contacting the vicinity of the cylindrical inner surface 5 and cleaning the vicinity of the cylindrical inner surface 5. It is desirable that the outer shape of the brush material 22 of the guide brush 4 substantially matches the maximum outer shape of the brush material 22 of the brush 12. Further, a packing 8 composed of a V-ring packing is attached to the rear end of the vibrated body 11 in a state of being covered with an annular member 59, and an annular lip protruding rearward of the packing 8 is formed as a second lip. The outer cylinder 31 is elastically slidably in contact with the forwardly-facing annular cross section to allow relative rotation while preventing dust during this time.
[0021]
Next, the operation of the above embodiment will be described.
First, the cylindrical inner surface 5 is, as shown in FIG. 5, an inner surface of a firing tube 15 for firing a flying object, for example. The inner surface of the firing tube 15 has a large-diameter portion 5 a, a cylindrical inner surface 5 having a conical shape, and a small-diameter. The cylindrical inner surface 5 has a conical cylindrical shape that substantially matches the outer shape of the brush material 22 mounted on the brush holder 18 having a conical cylindrical shape. And has a length in the central axis direction that can be contacted. As shown in FIG. 2, the brush 12 is inserted into the cylindrical inner surface 5, and the electric motor 32 is driven to rotate by a power source 60 arranged outside the cylindrical inner surface 5. The rotation of the electric motor 32 rotates the motor shaft 32a and the rotating shaft 17, and the eccentric rotating pendulum 13a rotates, so that the vibration generating mechanism 13 operates. Since the rotary pendulum 13a is rotatably supported in the vibrated body 11 by a pair of rolling bearings 47 and 48, the vibrated body 11 and the brush holder 18 are vibrated by the operation of the vibration generating mechanism 13. As a result, the brush 12 vibrates in the circumferential direction.
[0022]
Thereby, each brush member 22 rubs against the conical cylindrical inner surface 5 while vibrating in the circumferential direction and is cleaned. That is, each brush material 22 having an appropriate elastic repulsive force collides elastically with the cylindrical inner surface 5, and the minute rubbing caused by this collision is performed in a high cycle, and the cylindrical inner surface 5 is cleaned. Since the brush 12 has the brush material 22 spirally wound around the outer periphery of the brush holder 18, the cylindrical inner surface cleaning device provided with the brush 12 advances and each brush material 22 elastically collides with the cylindrical inner surface 5. The operation of cleaning the conical cylindrical inner surface 5 is performed while repeating the operation in which the brush material 22 is advanced again after being pushed back and each of the brush materials 22 elastically collides with the cylindrical inner surface 5. When the tubular inner surface cleaning device moves forward and backward, the brush material 22 of the guide brush 4 comes into contact with the large-diameter portion 5a of the firing cylinder 15, and the annular member 59, the first outer cylinder 30, and the second outer cylinder 31 are cylindrical. It functions to prevent direct contact with the large diameter portion 5a near the inner surface 5 and to clean the large diameter portion 5a.
[0023]
In this manner, the circumferential vibration of each brush material 22 and the forward / backward movement are combined, so that the corners of the uneven portion existing on the cylindrical inner surface 5 are also cleaned well. In addition, if the winding direction of the helical brush and the rotation direction of the motor shaft 32a are opposite to each other, for example, the brush 12 is wound clockwise, the motor shaft 32a is rotated left, and the brush 12 is vibrated in the circumferential direction. The brush 12 moves forward. The brush 12 can also be forcibly moved in the axial direction of the cylindrical inner surface 5 by applying a pushing or pulling force to the connecting member formed of the cabtire cable 32b. If a push or pull is applied to the connecting member formed of the cabtire cable 32b, and the brush 12 is forcibly moved back and forth in a short stroke, the cleaning function is favorably exhibited.
[0024]
In this manner, since the cylindrical inner surface 5 is cleaned by the brush material 22 that vibrates in a complicated manner, even when the cylindrical inner surface 5 has an uneven portion, a groove, or the like, the peripheral portion of the uneven portion or the like is present. Therefore, the entire surface of the cylindrical inner surface 5 is cleaned satisfactorily and uniformly. Of course, if the brush member 22 is impregnated with a neutral detergent or the like for cleaning, the cleaning effect is further improved.
[0025]
In addition, during the cleaning operation by the brush 12, the brush 12, which particularly vibrates in the circumferential direction, may simultaneously rotate, and the brush holder 18 and the vibrated body 11 may rotate gently around the central axis. In such a case, the vibrated body 11 rotates with respect to the second outer cylinder 31 while being supported on the inner peripheral surface of the slide bearing 57. At that time, the relative movement of the vibrated body 11 moving forward in the central axis direction with respect to the second outer cylinder 31 is suppressed by the annular member 59 while being supported by the slide bearing 61, and the vibrated body is suppressed. The relative movement of the sliding bearing 57 in the direction of the central axis in which the 11 moves backward with respect to the second outer cylinder 31 is suppressed by the rear end face of the slide bearing 57 abutting on the second outer cylinder 31. When the vibrated body 11 rotates with respect to the second outer cylinder 31, dust invades from between the vibrated body 11 and the second outer cylinder 31, wears the sliding friction surface of the slide bearing 57, and causes the electric motor to rotate. Although the dust tends to adhere to the portion 32, the intrusion of the dust from this portion is favorably prevented by the packing 8 including the V-ring packing.
[0026]
As described above, since the vibrated body 11 is rotatable with respect to the second outer cylinder 31, the second outer cylinder 31 and the first outer cylinder can be rotated even when the brush 12 is caused to rotate with the cleaning. The connecting member consisting of the cable 30 and the cabtire cable 32b does not rotate, so that twisting of the connecting member is prevented.
[0027]
FIG. 6 shows a cylindrical inner surface cleaning device in which a brush 12 ′ according to another structural example is mounted on the outer periphery of an intermediate portion of the vibrated body 11. The brush 12 'is formed by spirally winding a plurality of brush members 22 around the outer periphery of a cylindrical brush holder 18', and the brush member 22 has a cylindrical outer shape. The brush holder 18 'of the brush 12' is detented by a set screw 46 and held between the annular step surface 11d of the vibrated member 11 and the nut member 19, similarly to the brush holder 18 of the above embodiment. It is worn and installed.
[0028]
According to the brush 12 ', the entire surface of the cylindrical inner surface 5 (for example, the large-diameter portion 5a or the small-diameter portion 5b of the firing cylinder 15 shown in FIG. 5) is good by the same operation as the above embodiment. And it is evenly cleaned. Since the outer diameter of the brush member 22 is set slightly larger than the inner diameter of the cylindrical inner surface 5 (the large diameter portion 5a or the small diameter portion 5b), a cleaning action can be obtained. The moving operation can be performed with a light force, because the frictional force between the brush material 22 and the cylindrical inner surface 5 is relatively small based on the resilience of each brush material 22, and one person is sufficient. . Since the connecting member made of the cabtire cable 32b is given flexibility, it is possible to clean the cylindrical inner surface 5 which is slightly curved. The cylindrical inner surface 5 includes, for example, a cylinder inner surface of an injection molding machine or an extruder for injection-molding a plastic product, in addition to the firing cylinder 15. The conical brush 12 of the above embodiment can be used for the conical surface portion connected to the nozzle at the tip of the inner surface of the cylinder of the injection molding machine. In this type of resin machine, it is necessary to perform a cleaning operation for removing the plastic adhered to the inner surface of the cylinder in accordance with a change in grade, color, type, and the like of the plastic.
[0029]
By the way, in the above embodiment, the eccentric rotary pendulum 13a is provided as the vibration generating mechanism 13 and driven by the electric motor 32. However, various types of vibration generating mechanisms are adopted, and the vibration generating mechanism 13 is driven by an air motor. The vibration direction of the vibrated body 11 is not limited to the circumferential direction, and vibrations in all directions such as the axial direction, the radial direction, and the tangential direction can be given to obtain substantially the same cleaning action. However, in the case of the pneumatic vibration generating mechanism 13, the cabtire cable 32b, which is a connecting tool, is a double air hose for sending and discharging compressed air, and the power supply 60 is an air source.
[0030]
In addition, the brush material 22 of the brushes 12, 12 'is inclined in either the front or rear direction from a direction perpendicular to the traveling direction, so that the brushes 12, 12' vibrated by this are self-propelled. You can also. Further, the brush members 22 of the brushes 12, 12 'can be mounted in an independent ring. The cylindrical inner surface 5 is not limited to a circular cross section, but may have a rectangular cross section. When the cylindrical inner surface 5 is formed in a rectangular shape, an outer shape suitable for each of the brushes 22 of the brushes 12 is provided.
[0031]
【The invention's effect】
As can be understood from the above description, according to the present invention, a cylindrical inner surface cleaning device having a simple structure is obtained, and the cylindrical inner surface cleaning device has a more uneven structure than a device that cleans by rotating the brush itself. It is also possible to satisfactorily clean the inner surface of the tube, the inner surface of the tube having a square cross section, and the like. In addition, the brush can be moved more reliably and easily in the axial direction of the inner cylindrical surface than when cleaning is performed by positively rotating the brush, and there is no need for a mechanism to support the rotational reaction force. Is simple.
[0032]
Furthermore, since the vibration generating mechanism is built in the vibrating body, the vibration generating mechanism is driven by a rotary drive source, and the vibrating body is directly vibrated. The cleaning action by the brush attached to the body can be stably obtained. In addition, since the vibrating body is rotatably supported on the outer cylinder, twisting of a connecting member such as a cabin ear cable connected to a rotary drive source due to rotation of the vibrating body is prevented.
[0033]
According to the second aspect of the present invention, the conical cylindrical inner surface is favorably cleaned.
According to the third aspect of the invention, it is possible to prevent the outer cylinder from being in contact with the inner surface of the cylindrical body and to be damaged, thereby improving the durability of the outer cylinder and simultaneously obtaining the cleaning action by the guide brush. , A good cleaning condition is obtained.
According to the fourth aspect of the present invention, the brush is firmly attached, the cleaning efficiency is prevented from lowering due to the looseness of the brush, and the brush is detachably attached by the nut member. Excellent replacement workability.
According to the invention described in claim 6 , dust is prevented from entering the outer cylinder and the inside of the vibrated body, and the durability of the rotary drive source and the like is sufficiently secured.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a cylindrical inner surface cleaning device according to one embodiment of the present invention.
FIG. 2 is a view showing a use state of the cylindrical inner surface cleaning device.
FIG. 3 is a sectional view showing the brush.
FIG. 4 is a diagram showing a brush.
FIG. 5 is a cross-sectional view showing a cylindrical inner surface.
FIG. 6 is a sectional view showing a main part of a cylindrical inner surface cleaning device including a brush according to another structural example.
[Explanation of symbols]
4: guide brush, 5: cylindrical inner surface, 8: packing, 11: vibrated body, 11c: concave portion, 11d: stepped surface, 12, 12 ': brush, 13: vibration generating mechanism, 13a: eccentric rotary pendulum, 17: rotating shaft, 18, 18 ': brush holder, 19: nut member, 22: brush material, 24: screw, 30: first outer cylinder (outer cylinder), 31: second outer cylinder (outer cylinder), 32 : Electric motor (rotary drive source), 32b: cabtire cable (connecting tool) , 47, 48: rolling bearing (bearing) , 59: annular member, 60: power supply.

Claims

被振動体（１１）と、該被振動体（１１）の外周に装着したブラシ（１２，１２’）と、該被振動体（１１）内に軸受（４７，４８）によつて回転自在かつ中心軸線方向の移動不可能に支持される偏心する回転振子（１３ａ）を有し、該被振動体（１１）に振動を与える振動発生機構（１３）と、振動発生機構（１３）の後側に接続する回転駆動源（３２）と、該被振動体（１１）の後端部を回転可能に支持する外筒（３０，３１）とを備え、該回転駆動源（３２）による回転駆動力が該回転振子（１３ａ）を回転させるように供給されて該被振動体（１１）を軸受（４７，４８）を介して加振することを特徴とする筒状内面清掃装置。A vibrating body (11), brushes (12 , 12 ' ) mounted on the outer periphery of the vibrating body (11) , and a rotatable and rotatable inside of the vibrating body (11) by bearings (47, 48). A vibration generating mechanism (13) that has an eccentric rotating pendulum (13a) that is supported immovably in the direction of the central axis and that applies vibration to the vibrated body (11); and a rear side of the vibration generating mechanism (13). A rotary drive source (32) connected to the main body, and outer cylinders (30, 31) rotatably supporting a rear end of the vibrated body (11), and a rotary drive force by the rotary drive source (32). Is supplied to rotate the rotary pendulum (13a) and vibrates the vibrated body (11) via bearings (47, 48) .

前記ブラシ（１２）の外形が、前方に向けて次第に縮径する円錐形状をなすことを特徴とする請求項１の筒状内面清掃装置。 The cylindrical inner surface cleaning device according to claim 1, wherein the outer shape of the brush (12) has a conical shape whose diameter gradually decreases toward the front.

前記外筒（３０，３１）の該被振動体（１１）よりも後側位置の外周側に、ガイドブラシ（４）を装着することを特徴とする請求項１又は２の筒状内面清掃装置。 The cylindrical inner surface cleaning device according to claim 1 or 2 , wherein a guide brush (4) is mounted on an outer peripheral side of the outer cylinder (30, 31) at a position rearward of the vibrated body (11). .

前記ブラシ（１２，１２’）が、筒状のブラシホルダー（１８，１８’）にブラシ材（２２）を装着して構成され、該ブラシホルダー（１８，１８’）が、後端が該被振動体（１１）の段面（１１ｄ）に当接され、前端が該被振動体（１１）の外周前端部に螺合させたナット部材（１９）によつて当接支持されていることを特徴とする請求項１，２又は３の筒状内面清掃装置。The brush (12, 12 ') is configured by mounting a brush material (22) on a cylindrical brush holder (18, 18'), and the brush holder (18, 18 ') has a rear end covered with the cover. It is abutted against the step surface (11d) of the vibrating body (11), and the front end is supported by a nut member (19) screwed to the outer peripheral front end of the vibrated body (11). The cylindrical inner surface cleaning device according to claim 1, 2, or 3 .

ナット部材（１９）に螺合するねじ（２４）の先端部が、被振動体（１１）の凹部（１１ｃ）に係合して回止めが施されていることを特徴とする請求項４の筒状内面清掃装置。Tip of the screw (24) screwed into the nut member (19) of claim 4, characterized in that it engages brake disc is subjected in the recess (11c) of the driven member (11) A cylindrical inner surface cleaning device.

前記外筒（３０，３１）と被振動体（１１）との間に、防塵用のパッキング（８）を介在させることを特徴とする請求項１，２，３，４又は５の筒状内面清掃装置。6. A cylindrical inner surface according to claim 1 , wherein a dustproof packing is interposed between said outer cylinder and said vibrating body. Cleaning device.