JP4344172B2

JP4344172B2 - Rotating blade of a biaxial shearing crusher

Info

Publication number: JP4344172B2
Application number: JP2003162275A
Authority: JP
Inventors: 直哉和田
Original assignee: Kinki KK
Current assignee: Kinki KK
Priority date: 2002-06-11
Filing date: 2003-06-06
Publication date: 2009-10-14
Anticipated expiration: 2023-06-06
Also published as: JP2004066226A

Description

【０００１】
【発明の属する技術分野】
本願発明は、剪断作用により各種の固形処理物を破砕する二軸剪断式破砕機の回転刃の改良に関するものである。
【０００２】
【従来の技術】
従来より、剪断力を利用してプラスチック、木片、紙、金属、ゴム、繊維、皮革に至るまであらゆる固形処理物を破砕する剪断式破砕機が知られている。
【０００３】
この種の剪断式破砕機として、二軸剪断式破砕機がある。この二軸剪断式破砕機は、上下にそれぞれ処理物の投入口と排出口とを有するケーシング内に、２つの軸がほぼ平行に軸受を介して支持され、これらの軸は対向する方向に回転可能に構成されており、各軸上にはスペーサを挟んで交互に一体物の円盤状回転刃が配設されている。この交互に配設された回転刃は、片側側面同士が相互に密接すると共に回転刃の外周面同士が一部ラップした状態で回転して、回転刃のエッジ部分で処理物を剪断する、所謂スリットカッタを形成している。また、回転刃の外周には一部突設したように処理物引き込み用の爪が設けられている（例えば、特許文献１参照。）。
【０００４】
このような二軸剪断式破砕機の使用時には、相対する一対の回転刃を互いに内方に向かって回転駆動し、ケーシングの上部の投入口から処理物が投入される。この投入された処理物は、相対向する回転刃の爪により、回転刃間の間隙に引き込まれ、スリットカッタの剪断作用で破砕され、下部の排出口より排出される。
【０００５】
このように二軸剪断式破砕機では回転刃のエッジ部分で処理物を剪断するため、この回転刃が最も摩耗し易く、一定の使用期間を経過すると、回転刃を新しいものに取り替える必要がある。使用頻度や処理物によって取り替え期間は異なるが、かなり短期間で取り替えなければならない場合がある。
【０００６】
一方、このような従来技術の場合、円盤状の回転刃は一体物であるから、これを取り替える場合には、ケーシングと軸受をばらして取り外した後、軸からスペーサと共に回転刃を引き抜く必要があり、非常に煩雑で手間のかかる作業を強いられることになる。しかも、かかる二軸剪断式破砕機には相当数の回転刃が備わっているので、その取り替えには相当の労力を要し、保守管理が容易でない。
【０００７】
そのため、本件出願人によって、回転刃を、台刃部分とこれを取り囲む刃先部分とで構成して、摩耗し易い刃先部分のみを交換可能にした刃先交換カッタ（以下「ピースカッタ」という）に関する発明がすでに提案されている（特許文献２参照。）。
【０００８】
また、本出願人によって、ピースカッタのうちでも最も摩耗・欠損し易いエッジ部分のみを交換可能にして、ピースカッタ全体の再利用を可能とする回転刃も提案されている。この発明では、ピースカッタの平面部に平面エッジ片を、側面部に側面エッジ片を、それぞれ着脱可能に装着し、摩耗・欠損時には、これらのエッジ片のみを取り替えてピースカッタの本体は繰り返し使用できるようにしている（特許文献３参照。）。
【０００９】
【特許文献１】
実公昭５５−４１３０９号公報（第１頁、図１）
【特許文献２】
特開平８−３２３２３２号公報（第３頁、図１）
【特許文献３】
特開平８−３２３２３３号公報（第３頁、図３，４，５）
【００１０】
【発明が解決しようとする課題】
ところで、前記したように、特許文献１と同様に投入口から投入された処理物を相対向する回転刃間におけるスリットカッタの剪断作用で破砕する場合、これらの回転刃のエッジ部分が非常に摩耗しやすい。このエッジ部分が摩耗すると、破砕効率が大幅に落ちてしまう。そのため、摩耗した回転刃を交換することとなるが、この回転刃は円盤状の一体物であるから、これを取り替える場合には、ケーシングと軸受を分解して取り外した後、軸からスペーサと共に回転刃を引き抜く必要があり、非常に煩雑で手間のかかる作業を強いられることになる。しかも、かかる二軸剪断式破砕機には相当数の回転刃が備わっているので、その取り替えには相当の労力を要し、保守管理が容易でない。
【００１１】
一方、刃先部分のみを交換できるようにした前記特許文献２の場合、エッジ部分が摩耗した場合でも、摩耗したピースカッタのみを容易に交換することはできるが、二軸剪断式破砕機の回転刃におけるピースカッタの便宜性および経済性、資源の有効活用を図るという点で更に改良が望まれている。
【００１２】
そのための提案として、前記特許文献３がなされたが、この特許文献３のようにエッジ片のみを取り替え可能とした場合、エッジ片を取り付けた状態でのピースカッタ幅寸法を、上述したスリットカッタの剪断作用を発揮できる寸法に仕上げるのは非常に困難である。そのため、カッタの交換に時間と費用を要することがある。
【００１３】
【課題を解決するための手段】
そこで、前記課題を解決するために、本願発明は、ケーシングに平行に配設した軸に、スペーサを間に挟んで交互に設けて相対する側面同士が互いに密接ラップした状態で内方に向って対向回転するように構成した二軸剪断式破砕機の回転刃において、前記回転刃には、前記軸に台刃部分を設けると共にこの台刃部分を取り囲むように刃先部分を設け、該刃先部分を周方向に分割して複数個のピースカッタで形成すると共に、該ピースカッタを前記台刃部分に着脱可能に構成し、該ピースカッタは、外周の爪が回転時に処理物を引き込む作用と同時に、相対するスペーサの外周面に近接し、相対向するピースカッタ間の剪断作用により処理物を一定長さに剪断するように構成されていると共に、該ピースカッタの側面に所定深さの摩耗防止材取付溝を所定間隔で複数本設け、該摩耗防止材取付溝の溝幅を、該摩耗防止材取付溝の溝間の寸法よりも小さくし、該複数本の摩耗防止材取付溝に、該ピースカッタの側面とほぼ面一とした異種材料の摩耗防止材を設けている。この構成はピースカッタに関するものであり、この場合の摩耗防止材取付溝は、ピースカッタの側面に形成される。また、摩耗防止材を設ける方法としては、ピースカッタの摩耗防止材取付溝に、異種の材料を溶接、溶射、はめ込み、接着、ロウ付け、嵌合などにより取り付ける。このように、ピースカッタの側面に所定深さの摩耗防止材取付溝を設け、この摩耗防止材取付溝の溝幅を摩耗防止材取付溝の溝間の寸法よりも小さくして加工上好ましくし、この溝に異種材料の摩耗防止材をピースカッタ側面とほぼ面一に設けることにより、ピースカッタの幅寸法を正確に仕上げて剪断作用で破砕するスリットカッタとしての機能を安定して発揮し、剪断破砕による側面摩耗をし難くすることができる。この摩耗防止材が使用によって摩耗したとしても、この摩耗防止材を新しい摩耗防止材に取り替えて再生した後、再びそのピースカッタを台刃部分の所定箇所に固定すれば、摩耗・欠損した刃先部分を何度でも再生して側面摩耗のし難い回転刃として繰り返し使用することができる。
【００１４】
また、前記摩耗防止材取付溝を、ピースカッタの異なる側面エッジ部間に連続するように形成し、該摩耗防止材取付溝に摩耗防止材を設けることにより、ピースカッタ側面のエッジ部においても摩耗防止材によって摩耗が抑止されるので、摩耗し易いエッジ部における効果的な摩耗抑止を図ることができる。
【００１５】
さらに、前記摩耗防止材取付溝の深さを、該摩耗防止材取付溝の溝幅よりも小さくすれば、取り替えが容易に行える。
【００１６】
一方、ケーシングに平行に配設した軸に、スペーサを間に挟んで交互に設けて相対する側面同士が互いに密接ラップした状態で内方に向って対向回転するように構成した二軸剪断式破砕機の回転刃において、前記回転刃は、外周に複数の爪を形成したカッタ本体を前記軸に設け、該爪は、回転時に処理物を引き込む作用と同時に、相対するスペーサの外周面に近接し、相対向する爪間の剪断作用により処理物を一定の長さに剪断するように構成されており、前記カッタ本体の側面の少なくとも前記スペーサと接する面よりも外径側に所定深さの摩耗防止材取付溝を所定間隔で複数本設け、該摩耗防止材取付溝の溝幅を、該摩耗防止材取付溝の溝間の寸法よりも小さくし、該複数本の摩耗防止材取付溝に、該カッタ本体の側面とほぼ面一とした異種材料の摩耗防止材を設けてもよい。この構成はモノカッタ（一体的なカッタ）に関するものであり、この場合の摩耗防止材取付溝は、カッタ本体の側面の少なくともスペーサと接する面よりも外径側に形成すればよい。また、摩耗防止材を設ける方法としては、カッタ本体の摩耗防止材取付溝に、異種の材料を溶接、溶射、はめ込み、接着、ロウ付け、嵌合などにより取り付ける。このように、カッタ本体の側面に所定深さの摩耗防止材取付溝を設け、この摩耗防止材取付溝の溝幅を摩耗防止材取付溝の溝間の寸法よりも小さくして加工上好ましくし、この溝に異種材料の摩耗防止材をカッタ本体側面とほぼ面一に設けることにより、カッタ本体の幅寸法を正確に仕上げて剪断作用で破砕するスリットカッタとしての機能を安定して発揮し、剪断破砕による側面摩耗をし難くすることができる。つまり、軸の周囲のスペーサと接する部分よりも外径側の摩耗防止材が設けられた部分の側面摩耗をし難くすることができ、剪断作用で破砕するスリットカッタとしての機能を長期間安定して発揮することができる。そして、この摩耗防止材が使用によって摩耗したとしても、この摩耗防止材を新しい摩耗防止材に取り替えて再生した後、再びそのカッタ本体を台刃部分の所定箇所に固定すれば、摩耗・欠損した部分を何度でも再生して側面摩耗のし難い回転刃として繰り返し使用することができる。
【００１８】
また、前記摩耗防止材取付溝の深さを、該摩耗防止材取付溝の溝幅よりも小さくすれば、取り替えが容易に行える。
【００１９】
【発明の実施の形態】
以下、本願発明の一実施形態を図面に基づいて説明する。図１は本願発明を適用する二軸剪断式破砕機の一実施形態を示す正面からの断面図であり、図２は図１に示す二軸剪断式破砕機においてピースカッタを用いた回転刃の分解斜視図である。
【００２０】
まず、本願発明にかかる回転刃を装着した二軸剪断式破砕機全体の構成について説明する。図１において、２つの矩形断面をした主軸１と従軸２とが、一定間隔をおいてほぼ平行に並設されている。各軸１、２は、両軸端が軸受（図示略）を介して回転自在に箱形のケーシング３に支持された回転軸である。なお、主軸１は、図示しない電動機の駆動軸に連結されている。主軸１を左回転させると、従軸２はこれと反対の右方向に回転する。つまり、２つの軸１、２は内方に向かって（図の矢印方向に）対向回転するように構成されている。
【００２１】
前記２つの軸１、２上には、それぞれ円盤状の回転刃Ｃがスペーサ９を間に挟んで交互に設けられている。これらの回転刃Ｃは、その側面同士が互いに密接ラップした状態で装着されている。各回転刃Ｃの外周には、処理物を引き込み且つ切断する複数の爪６ａが円周上に一定の間隔で設けられている。爪６ａは、回転刃Ｃの回転時に処理物を引き込む作用と同時に、相対するスペーサ９の外周面に近接して、相対向する爪６ａ間の剪断作用により処理物をある一定の長さに剪断する作用を奏する。つまり、相対向する一対の回転刃Ｃの側面同士が常時密接ラップしてスリットカッタを形成しており、ケーシング３の上方から投入された処理物は爪６ａによって引き込まれ、スリットカッタの剪断作用により破砕され、下方に排出されるようになっている。
【００２２】
なお、箱形のケーシング３の側部からは、前記回転刃Ｃ及びスペーサ９に対向する位置に向けてスクレーパ４が突設されている。このスクレーパ４の先端部は、それぞれ回転刃Ｃ（爪６ａの先端）及びスペーサ９の周面に近接するよう半円弧状に形成されている。スクレーパ４は、回転刃Ｃに挟まった処理物をかき取る働きをする。
【００２３】
ところで、前記のような機能を有する回転刃Ｃの場合、外周の刃先部分６が摩耗し易く、特に爪６ａの部分や側面が摩耗し易いので、一定期間使用すれば取り替える必要がある。
【００２４】
そこで、この実施形態にかかる回転刃Ｃは、図２に示すように構成されている。すなわち、図２に示すように、回転刃Ｃは、矩形断面の軸１、２に装着される台刃部分５と、これを取り囲む刃先部分６とに分割・形成されている。しかも、刃先部分６は、周方向に幾つか分割（この例では６分割）された略鉤状のピースカッタ７を円周上に接合連設することによって構成され、このピースカッタ７と台刃部分５とは後述する如く着脱可能になっている。
【００２５】
刃先部分６と台刃部分５との接合境界面１０は、表面に露出しない、つまり、台刃部分５の外周全体が表面に露出しないように、ピースカッタ７によって完全に取り囲まれた形となっている。これにより、摩耗は刃先部分６にのみ生じ、台刃部分５の部分には生じない。そのため、台刃部分５の部分は、刃先部分６によって保護されて摩耗しないから、交換は刃先部分６のみでよくなる。なお、台刃部分５の外周には各ピースカッタ７に噛合する如く段状歯部１０ａが突出形成されており、この歯部１０ａにより軸回転力を刃先６部分に確実に伝達できるようになっていると共に、切断時の反力をこの歯部１０ａで受け持つ。
【００２６】
各ピースカッタ７にはボルト孔８が設けられており、このボルト孔８からボルトを挿入して台刃部分５に設けられた雌ねじ孔８ａに螺合することにより、各ピースカッタ７は台刃部分５の外周に着脱可能な状態で一体的に取付けられ、一つの回転刃Ｃが形成されている。
【００２７】
そして、以下の第１〜第４実施形態では、このように構成されたピースカッタ７において摩耗・欠損し易い側面部分や爪に、再生可能な摩耗防止材１１が予め設けられている。
【００２８】
図３は図２に示す回転刃のピースカッタに係る第１実施形態の図面であり、(a) は斜視図、(b) は部分拡大図、図４は図２に示す回転刃のピースカッタに係る第２実施形態の図面であり、(a) は斜視図、(b) は部分拡大図、図５は図２に示す回転刃のピースカッタに係る第３実施形態の図面であり、(a) は斜視図、(b) は部分拡大図、図６は図２に示す回転刃のピースカッタに係る第４実施形態の図面であり、(a) は斜視図、(b) は部分拡大図である。なお、図３では上述した図２の符号を用い、図４〜図６では図３と同一の構成に同一符号を用い、ピースカッタの符号のみを異ならせている。
【００２９】
図３(a),(b) に示す第１実施形態のピースカッタ７は、図３(a) に示すように、ピースカッタ７の側面に、このピースカッタ７の接合面７ａとほぼ平行の横方向に摩耗防止材取付溝１２が形成されている。この例では、接合面７ａと平行方向の異なるエッジ部（角部）間で摩耗防止材取付溝１２が連続するように形成されている。この摩耗防止材取付溝１２は、所定間隔で複数本が設けられている。この所定間隔としては、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗが取付溝１２間の寸法ｐよりも小さい方が加工上好ましい。また、摩耗防止材取付溝１２の深さｈは摩耗防止材１１の材質によって異なるが、溝幅ｗよりも小さい寸法の方が取り替えが容易に行える。この深さｈとしては、所定期間（例えば、機械本体の保守間隔）の間、一定の耐摩耗性を発揮できる寸法であればよい。
【００３０】
そして、図３(b) に示すように、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。摩耗防止材１１には、ピースカッタ７の本体材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等を含む材料が用いられる。所謂、ハードフェイシングに用いられる材料が用いられる。
【００３１】
この摩耗防止材１１を設ける方法として溶接を採用する場合、ピースカッタ７の側面の横方向に摩耗防止材取付溝１２を加工後、この溝１２に摩耗防止材１１となるタングステンカーバイドのパウダーを強化肉盛用ワイヤーで肉盛溶接後、ピースカッタ７のエッジ部分を加工し、強化肉盛溶接の表面をピースカッタ７の表面と同一面に加工する。このようにして、異種材料の摩耗防止材１１がピースカッタ７の側面に一体的に設けられる。
【００３２】
また、摩耗防止材１１を接着やロウ付けによって設ける場合、予め摩耗防止材取付溝１２の形状に合致する形状に摩耗防止材１１を形成し、この摩耗防止材１１を摩耗防止材取付溝１２に嵌め込んで接着やロウ付けで設ければよい。
【００３３】
さらに、この実施形態では、刃先部分６の特に摩耗し易い爪６ａの部分と、爪６ａの角部とにも、摩耗防止材１１が設けられている。図に２点差線で示すように、前記側面に設けられた摩耗防止材１１と同様に、爪６ａと、この爪６ａの角部に摩耗防止材取付溝１２を加工後、この溝１２に摩耗防止材１１となるタングステンカーバイドのパウダーを強化肉盛用ワイヤーで肉盛溶接後、爪６ａとピースカッタ７のエッジ部分を加工して強化肉盛溶接の表面をピースカッタ７の表面と同一面に加工している。このように爪６ａと刃先部分６の角部に摩耗防止材１１を設けることにより、側面の摩耗防止と共に、最も摩耗し易い爪６ａの部分や角部での摩耗防止を図ることもできる。
【００３４】
図４(a),(b) に示す第２実施形態のピースカッタ１７は、図４(a) に示すように、ピースカッタ１７の側面に、このピースカッタ１７の接合面１７ａとほぼ直交して縦方向に摩耗防止材取付溝１２が形成されている。この例では、接合面１７ａと直交方向の異なるエッジ部（角部）間で摩耗防止材取付溝１２が連続するように形成されている。この摩耗防止材取付溝１２は、所定間隔で複数本が設けられている。この所定間隔も上述した実施形態と同様に、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗが取付溝１２間の寸法ｐよりも小さい方が加工上好ましい。また、溝１２の深さｈも、溝幅ｗより小さい方が好ましい。
【００３５】
そして、図４(b) に示すように、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が取り付けられている。この摩耗防止材１１も、ピースカッタ１７の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等の材料が用いられる。この摩耗防止材１１の装置方法は、上述した第１実施形態と同一であるため、詳細な説明は省略する。
【００３６】
この第２実施形態によれば、回転するピースカッタ１７が描く円と交差する方向（半径方向）となるように摩耗防止材１１が放射状に設けられているので、剪断破砕時に処理物と交差する方向に設けられた摩耗防止材１１によって、好ましい摩耗防止効果を発揮することができる。
【００３７】
図５(a),(b) に示す第３実施形態のピースカッタ２７は、図５(a) に示すように、ピースカッタ２７の側面に、このピースカッタ２７の接合面２７ａとほぼ平行の横方向とほぼ直交する縦方向に摩耗防止材取付溝１２が形成されている。この例では、接合面２７ａの平行方向と直交方向の異なるエッジ部（角部）間で摩耗防止材取付溝１２が連続するように形成されている。この摩耗防止材取付溝１２は、所定間隔で複数本が設けられており、格子状に形成されている。この所定間隔も上述した実施形態と同様に、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗが取付溝１２間の寸法ｐよりも小さい方が加工上好ましい。また、溝１２の深さｈも、溝幅ｗより小さい方が好ましい。
【００３８】
そして、図５(b) に示すように、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。この摩耗防止材１１も、ピースカッタ２７の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等の材料が用いられる。この摩耗防止材１１を設ける方法は、上述した第１実施形態と同一であるため、詳細な説明は省略する。
【００３９】
この第３実施形態によれば、ピースカッタ２７の側面に多くの摩耗防止材１１が設けられているので、耐摩耗性は最も好ましい。
【００４０】
図６(a),(b) に示す第４実施形態のピースカッタ３７は、図６(a) に示すように、ピースカッタ３７の側面に、爪６ａ側からピースカッタ３７の長手方向に円弧を描くように摩耗防止材取付溝１２が形成されている。この例では、ピースカッタ３７の前端側と後端側の異なるエッジ部（角部）間で摩耗防止材取付溝１２が連続するように形成されている。この摩耗防止材取付溝１２は、所定間隔で複数本が設けられており、同一円弧で並設されている。この円弧は異なってもよい。この所定間隔も上述した実施形態と同様に、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗが取付溝１２間の寸法ｐよりも小さい方が加工上好ましい。また、溝１２の深さｈも、溝幅ｗより小さい方が好ましい。
【００４１】
そして、図６(b) に示すように、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。この摩耗防止材１１も、ピースカッタ３７の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等の材料が用いられる。この摩耗防止材１１を設ける方法は、上述した第１実施形態と同一であるため、詳細な説明は省略する。
【００４２】
また、この実施形態における摩耗防止材１１は、回転するピースカッタ３７が描く円と交差するような円弧で設けられているので、剪断破砕時に処理物と交差して好ましい摩耗防止効果を発揮することができる。
【００４３】
なお、これら第１〜第４実施形態におけるいずれの形態の摩耗防止材１１を採用するかは、処理物の種類や処理量等に応じて適宜選択すればよい。
【００４４】
以上のように構成されたピースカッタ７，１７，２７，３７によれば、所定期間使用して摩耗したら、ピースカッタ７，１７，２７，３７の取付ボルトを取外してピースカッタ７，１７，２７，３７を台刃部分５から取り外し（図２）、摩耗防止材取付溝１２の摩耗防止材１１を取り替えて再生することにより、再びそのピースカッタ７，１７，２７，３７を台刃部分５の所定箇所に固定すれば、摩耗・欠損したピースカッタ７，１７，２７，３７を何度でも再生して繰り返し使用することにより、側面摩耗のし難い回転刃とすることが可能となる。
【００４５】
つまり、ケーシング３に支持された回転軸に設けられた回転刃Ｃの周囲に分割形成した刃先部分６の側面に、異種材料の摩耗防止材１１を種々の方法で表面が平滑な状態で設けることにより、ピースカッタを摩耗し難くすると共に、摩耗した場合は、取り付けた異種材料の摩耗防止材１１を取り替えて再生することにより、ピースカッタの再利用が可能な摩耗し難い回転刃となるようにしている。
【００４６】
これにより、ピースカッタ（７，１７，２７，３７）のスクラップ量が減り、資源の有効利用とランニングコストの低減を図ることができる。
【００４７】
図７は本願発明におけるモノカッタの回転刃に係る第５実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。なお、この第５実施形態では、上述した図４に示す第２実施形態と同一の構成に同一符号を付して説明する。
【００４８】
図示するように、回転刃４７は、中央部に上述した主軸１又は従軸２に装着される孔が設けられ、その周方向に複数の爪６ａが均等な間隔で一体的に形成されている。この回転刃４７は、全体が一体的に形成されたモノカッタである。各モノカッタは、前記軸１，２（図１）にスペーサ９（図１）を間に挟んで装着されている。そして、このように構成されたカッタ本体１３の側面部分に、所定深さの摩耗防止材取付溝１２（図４）を形成し、この摩耗防止材取付溝１２に、カッタ本体の側面とほぼ面一とした異種材料の摩耗防止材１１が予め設けられている。図示する(a) は全面に摩耗防止材取付溝１２を設けた例であり、(b) はスペーサ９と接する部分（中央の白い円部分）以外に摩耗防止材取付溝１２を設けた例である。
【００４９】
この実施形態では、カッタ本体１３の側面にほぼ平行な摩耗防止材取付溝１２が所定間隔で設けられている。この摩耗防止材取付溝１２を設ける所定間隔としては、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗ（図４）が取付溝１２間の寸法ｐよりも小さい方が加工上好ましい。また、摩耗防止材取付溝１２の深さｈ（図４）は摩耗防止材１１の材質によって異なるが、溝幅ｗよりも小さい寸法の方が取り替えが容易に行える。この深さｈとしては、所定期間（例えば、機械本体の保守間隔）の間、一定の耐摩耗性を発揮できる寸法であればよい。
【００５０】
そして、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。摩耗防止材１１には、カッタ本体１３の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等を含む材料が用いられる。所謂、ハードフェイシングに用いられる材料が用いられる。
【００５１】
この摩耗防止材１１を設ける方法として溶接を採用する場合、カッタ本体１３の側面に摩耗防止材取付溝１２を加工後、この溝１２に摩耗防止材１１となるタングステンカーバイドのパウダーを強化肉盛用ワイヤーで肉盛溶接後、カッタ本体１３のエッジ部分を加工し、強化肉盛溶接の表面をカッタ本体１３の表面と同一面に加工する。このようにして、異種材料の摩耗防止材１１がカッタ本体１３の側面に一体的に設けられる。
【００５２】
また、摩耗防止材１１を接着やロウ付けによって設ける場合、予め摩耗防止材取付溝１２の形状に合致する形状に摩耗防止材１１を形成し、この摩耗防止材１１を摩耗防止材取付溝１２に嵌め込んで接着やロウ付けで設ければよい。
【００５３】
さらに、この実施形態では、特に摩耗し易い爪６ａの部分と、爪６ａの角部とにも、摩耗防止材１１が設けられている。図７(a) に２点差線で示すように、前記側面に設けられた摩耗防止材１１と同様に、爪６ａと、この爪６ａの角部に摩耗防止材取付溝１２を加工後、この溝１２に摩耗防止材１１となるタングステンカーバイドのパウダーを強化肉盛用ワイヤーで肉盛溶接後、爪６ａとカッタ本体１３のエッジ部分を加工して強化肉盛溶接の表面をカッタ本体１３の表面と同一面に加工している。このように爪６ａと爪６ａの角部に摩耗防止材１１を設けることにより、側面の摩耗防止と共に、最も摩耗し易い爪６ａの部分や角部での摩耗防止を図ることもできる。
【００５４】
図８は本願発明におけるモノカッタの回転刃に係る第６実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。なお、この第６実施形態では、前記第５実施形態（図７）および第３実施形態（図５）と同一の構成に同一符号を付し、回転刃の符号のみを異ならせている。
【００５５】
この第６実施形態における回転刃５７は、カッタ本体１３の側面に、縦方向と横方向とでほぼ直交するようにほぼ平行な摩耗防止材取付溝１２（図５）が形成されている。つまり、この実施形態では、所定間隔で複数本の摩耗防止材取付溝１２が格子状に形成されている。この所定間隔も上述した第３実施形態と同様に、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗ（図５）が取付溝１２間の寸法ｐ（図５）よりも小さい方が加工上好ましい。また、溝１２の深さｈ（図５）も、溝幅ｗより小さい方が好ましい。
【００５６】
そして、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。この摩耗防止材１１も、カッタ本体１３の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等の材料が用いられる。この摩耗防止材１１を設ける方法は、上述した第１実施形態と同一であるため、詳細な説明は省略する。この第６実施形態によれば、回転刃５７の側面に多くの摩耗防止材１１が設けられているので、耐摩耗性は好ましい。
【００５７】
図９は本願発明におけるモノカッタの回転刃に係る第７実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。なお、この第７実施形態では、前記第５実施形態（図７）および第４実施形態（図６）と同一の構成に同一符号を付し、回転刃の符号のみを異ならせている。
【００５８】
この第７実施形態における回転刃６７は、カッタ本体１３の側面に、円弧を描くように摩耗防止材取付溝１２（図６）が形成されている。この摩耗防止材取付溝１２は、所定間隔で複数本が設けられており、同一円弧で並設されている。この円弧は異なってもよい。この所定間隔も上述した第４実施形態と同様に、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗ（図６）が取付溝１２間の寸法ｐ（図６）よりも小さい方が加工上好ましい。また、溝１２の深さｈ（図６）も、溝幅ｗより小さい方が好ましい。
【００５９】
そして、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。この摩耗防止材１１も、カッタ本体１３の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等の材料が用いられる。この摩耗防止材１１を設ける方法は、上述した第１実施形態と同一であるため、詳細な説明は省略する。
【００６０】
図１０は本願発明におけるモノカッタの回転刃に係る第８実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。なお、この第８実施形態でも、前記第５実施形態（図７）および第２実施形態（図４）と同一の構成に同一符号を付し、回転刃の符号のみを異ならせている。
【００６１】
この第８実施形態における回転刃７７は、カッタ本体１３の側面に、このカッタ本体１３の中心から放射状に複数の摩耗防止材取付溝１２が形成されている。この摩耗防止材取付溝１２は、所定角度で複数本が設けられている。この所定角度は上述した実施形態における所定間隔と同様に、処理物や使用条件等に応じて設定可能であるが最内周部で、摩耗防止材取付溝１２の溝幅ｗ（図４）が取付溝１２間の寸法ｐ（図４）よりも小さい方が加工上好ましい。また、溝１２の深さｈ（図４）も、溝幅ｗより小さい方が好ましい。
【００６２】
そして、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。この摩耗防止材１１も、カッタ本体１３の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等の材料が用いられる。この摩耗防止材１１を設ける方法は、上述した第１実施形態と同一であるため、詳細な説明は省略する。
【００６３】
この第８実施形態によれば、回転するカッタ９７が描く円と交差する方向（半径方向）となるように摩耗防止材１１が放射状に設けられているので、剪断破砕時に処理物と交差する方向に設けられた摩耗防止材１１によって、剪断時に好ましい摩耗防止効果を発揮することができる。
【００６４】
図１１は本願発明におけるモノカッタの回転刃に係る第９実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。なお、この第９実施形態では、前記第７実施形態（図９）および第４実施形態（図６）と同一の構成に同一符号を付し、回転刃の符号のみを異ならせている。
【００６５】
この第９実施形態における回転刃８７は、カッタ本体１３の側面に、爪６ａを中心とするような円弧を描くように摩耗防止材取付溝１２が形成されている。この例では、爪６ａの前後のエッジ部（角部）間で連続するような摩耗防止材取付溝１２が形成されている。この実施形態では、６個所の爪６ａの部分を中心としてカッタ本体１３の側面のほぼ全面に摩耗防止材取付溝１２が形成されている。この摩耗防止材取付溝１２は、所定間隔で複数本が設けられており、同一円弧で並設されている。この円弧は異なってもよく、また形態もこの実施形態に限定されるものではない。さらに、この摩耗防止材取付溝１２を設ける所定間隔も、上述した実施形態と同様に、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗ（図６）が取付溝１２間の寸法ｐ（図６）よりも小さい方が加工上好ましい。また、溝１２の深さｈ（図６）も、溝幅ｗより小さい方が好ましい。
【００６６】
そして、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。この摩耗防止材１１も、カッタ本体１３の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等の材料が用いられる。この摩耗防止材１１を設ける方法は、上述した第１実施形態と同一であるため、詳細な説明は省略する。
【００６７】
また、この実施形態における摩耗防止材１１は、回転する回転刃８７が描く円と交差するような円弧で設けられているので、剪断破砕時に処理物と交差して好ましい摩耗防止効果を発揮することができる。
【００６８】
図１２は本願発明におけるモノカッタの回転刃に係る第１０実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。なお、この第１０実施形態では、前記第７実施形態および第４実施形態と同一の構成に同一符号を付し、回転刃の符号のみを異ならせている。
【００６９】
この第１０実施形態における回転刃９７は、カッタ本体１３の側面に、同心円で複数の摩耗防止材取付溝１２（図６）が形成されている。この摩耗防止材取付溝１２は、所定間隔で複数本が設けられている。これらの摩耗防止材取付溝１２を設ける所定間隔は、処理物や使用条件等に応じて設定可能であるが、摩耗防止材取付溝１２の溝幅ｗ（図６）が取付溝１２間の寸法ｐ（図６）よりも小さい方が加工上好ましい。また、溝１２の深さｈ（図６）も、溝幅ｗより小さい方が好ましい。
【００７０】
そして、この摩耗防止材取付溝１２に異種材料の摩耗防止材１１が設けられている。この摩耗防止材１１も、カッタ本体１３の材質よりも硬度が高く、耐摩耗性の高い材質が好ましく、タングステンカーバイドやクロームカーバイド等の材料が用いられる。この摩耗防止材１１を設ける方法は、上述した第１実施形態と同一であるため、詳細な説明は省略する。
【００７１】
以上のように構成された回転刃４７，５７，６７，７７，８７，９７（モノカッタ）によれば、側面摩耗のし難い回転刃とすることが可能となる。しかも、摩耗した場合でも、取り付けた異種材料の摩耗防止材１１を取り替えて再生することにより、摩耗し難い回転刃として再利用することもできる。これらにより、回転刃（４７，５７，６７，７７，８７，９７）のスクラップ量が減り、資源の有効利用とランニングコストの低減を図ることができる。また、各図の(a) に示したように、カッタ本体１３の側面の全面に摩耗防止材１１を設けるか、各図の(b) に示したように、スペーサ９と接する部分（中央の白い円部分）以外に摩耗防止材１１を設けるかは、カッタ本体１３の大きさや形状等に応じて決定すればよい。さらに、これら第５〜第１０実施形態におけるいずれの形態の摩耗防止材１１を採用するかは、処理物の種類や処理量等に応じて適宜選択すればよい。
【００７２】
なお、上述したいずれかの実施形態における摩耗防止材取付溝１２を組合わせることは可能であり、処理物や使用条件等に応じて設定すればよく、上述した実施形態に限定されるものではない。
【００７３】
また、上述した実施形態は一実施形態であり、本願発明の要旨を損なわない範囲での種々の変更は可能であり、本願発明は上述した実施形態に限定されるものではない。
【００７４】
【発明の効果】
本願発明は、以上説明したような形態で実施され、以下に記載するような効果を奏する。
【００７５】
摩耗・欠損し易いカッタの側面に予め摩耗防止材を設けているため、摩耗・欠損等がし難く、摩耗・欠損しても何度でも再生して繰り返し使用することができ、資源の有効利用と、二軸剪断式破砕装置全体としてのランニングコストを低下させ、大きな経済効果を得ることが可能となる。
【図面の簡単な説明】
【図１】本願発明を適用する二軸剪断式破砕機の一実施形態を示す正面からの断面図である。
【図２】図１に示す二軸剪断式破砕機においてピースカッタを用いた回転刃の分解斜視図である。
【図３】図２に示す回転刃のピースカッタに係る第１実施形態の図面であり、(a) は斜視図、(b) は部分拡大図である。
【図４】図２に示す回転刃のピースカッタに係る第２実施形態の図面であり、(a) は斜視図、(b) は部分拡大図である。
【図５】図２に示す回転刃のピースカッタに係る第３実施形態の図面であり、(a) は斜視図、(b) は部分拡大図である。
【図６】図２に示す回転刃のピースカッタに係る第４実施形態の図面であり、(a) は斜視図、(b) は部分拡大図である。
【図７】本願発明におけるモノカッタの回転刃に係る第５実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。
【図８】本願発明におけるモノカッタの回転刃に係る第６実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。
【図９】本願発明におけるモノカッタの回転刃に係る第７実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。
【図１０】本願発明におけるモノカッタの回転刃に係る第８実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。
【図１１】本願発明におけるモノカッタの回転刃に係る第９実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。
【図１２】本願発明におけるモノカッタの回転刃に係る第１０実施形態の図面であり、(a) は全面に摩耗防止材を設けた例の斜視図、(b) はスペーサと接する部分以外に摩耗防止材を設けた例の斜視図である。
【符号の説明】
１…主軸
２…従軸
５…刃台部分
６…刃先部分
６ａ…爪
７…ピースカッタ
９…スペーサ
１０…接合境界面
１１…摩耗防止材
１２…摩耗防止材取付溝
１３…カッタ本体
１７…ピースカッタ
２７…ピースカッタ
３７…ピースカッタ
４７…回転刃
５７…回転刃
６７…回転刃
７７…回転刃
８７…回転刃
９７…回転刃
Ｃ…回転刃
ｗ…溝幅
ｐ…寸法（溝間）
ｈ…深さ（取付溝）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a rotary blade of a biaxial shear type crusher that crushes various solid processed products by a shearing action.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is known a shearing type crusher that uses a shearing force to crush all solid processed materials from plastic, wood pieces, paper, metal, rubber, fiber, and leather.
[0003]
As this type of shear crusher, there is a biaxial shear crusher. In this biaxial shearing type crusher, two shafts are supported in parallel through bearings in a casing having a processing product inlet and a discharge port at the top and bottom, and these shafts rotate in opposite directions. The disc-shaped rotary blades are integrally arranged on each shaft alternately with a spacer interposed therebetween. The alternately arranged rotary blades rotate in a state where the side surfaces of the rotary blades are in close contact with each other and the outer peripheral surfaces of the rotary blades are partially wrapped, so that the processed material is sheared at the edge portion of the rotary blades. A slit cutter is formed. In addition, a claw for pulling in a workpiece is provided on the outer periphery of the rotary blade so as to partially protrude (see, for example, Patent Document 1).
[0004]
When such a biaxial shearing type crusher is used, a pair of opposed rotating blades are driven to rotate inward from each other, and a processed material is introduced from an inlet at the top of the casing. The charged processed material is drawn into the gap between the rotary blades by the opposing claw of the rotary blade, crushed by the shearing action of the slit cutter, and discharged from the lower discharge port.
[0005]
In this way, in the biaxial shear type crusher, the processed material is sheared at the edge portion of the rotary blade, so this rotary blade is most likely to be worn, and after a certain period of use, it is necessary to replace the rotary blade with a new one. . Although the replacement period varies depending on the frequency of use and the processed material, it may be necessary to replace it in a considerably short period of time.
[0006]
On the other hand, in the case of such a conventional technique, since the disk-shaped rotary blade is an integral object, it is necessary to pull out the rotary blade together with the spacer from the shaft after removing the casing and the bearing after removing the casing and the bearing. This is very complicated and laborious. In addition, since such a twin-screw shearing crusher is provided with a considerable number of rotary blades, it requires considerable labor to replace it, and maintenance management is not easy.
[0007]
For this reason, the present applicant relates to a cutting edge replacement cutter (hereinafter referred to as “piece cutter”) in which the rotary blade is composed of a base blade portion and a cutting edge portion surrounding the rotating blade, and only the cutting edge portion that is easily worn is replaceable. Has already been proposed (see Patent Document 2).
[0008]
In addition, the present applicant has also proposed a rotary blade that allows only the edge portion that is most likely to be worn and broken among the piece cutters to be replaced, and allows the entire piece cutter to be reused. In this invention, a flat edge piece is attached to the flat part of the piece cutter, and a side edge piece is detachably attached to the side part, and when worn or damaged, only the edge piece is replaced and the main body of the piece cutter is used repeatedly. (See Patent Document 3).
[0009]
[Patent Document 1]
Japanese Utility Model Publication No. 55-41309 (first page, FIG. 1)
[Patent Document 2]
JP-A-8-323232 (page 3, FIG. 1)
[Patent Document 3]
JP-A-8-323233 (page 3, FIGS. 3, 4 and 5)
[0010]
[Problems to be solved by the invention]
By the way, as described above, in the case of crushing the processed material introduced from the insertion port by the shearing action of the slit cutter between the opposed rotating blades as in Patent Document 1, the edge portions of these rotating blades are very worn. It's easy to do. When this edge portion is worn, the crushing efficiency is greatly reduced. For this reason, the worn rotary blade must be replaced. Since this rotary blade is a disk-shaped integral, the casing and bearing must be disassembled and removed, and then rotated together with the spacer from the shaft. It is necessary to pull out the blade, which is very complicated and laborious. In addition, since such a twin-screw shearing crusher is provided with a considerable number of rotary blades, it requires considerable labor to replace it, and maintenance management is not easy.
[0011]
On the other hand, in the case of Patent Document 2 in which only the blade tip portion can be replaced, even if the edge portion is worn, only the worn piece cutter can be easily replaced. Further improvement is desired in terms of convenience and economy of peace cutters and effective utilization of resources.
[0012]
As a proposal for this, Patent Document 3 has been made, but when only the edge piece can be replaced as in Patent Document 3, the width of the piece cutter with the edge piece attached is the same as that of the slit cutter described above. It is very difficult to finish to a dimension that can exert a shearing action. Therefore, it may take time and cost to replace the cutter.
[0013]
[Means for Solving the Problems]
  Therefore, in order to solve the above-mentioned problem, the present invention is directed inward in a state where the side surfaces opposed to each other are provided on the shaft arranged in parallel with the casing, with the spacers in between and closely facing each other. In the rotary blade of the biaxial shearing crusher configured to rotate oppositely, the rotary blade is provided with a blade edge portion on the shaft and a blade edge portion so as to surround the blade edge portion. A plurality of piece cutters are formed by being divided in the circumferential direction, and the piece cutter is configured to be detachable from the base blade portion, and the piece cutter has a function of drawing a workpiece when the outer peripheral claw rotates, An anti-wear material having a predetermined depth on the side surface of the piece cutter and being configured to shear the processed object to a certain length by the shearing action between the opposing piece cutters in proximity to the outer peripheral surfaces of the opposing spacers. A plurality of provided at predetermined intervals Tsukemizo,The groove width of the wear preventing material mounting groove is made smaller than the dimension between the grooves of the wear preventing material mounting groove,The plurality of wear prevention material mounting grooves are provided with wear prevention materials of different materials that are substantially flush with the side surfaces of the piece cutter. This configuration relates to a piece cutter. In this case, the wear preventing material mounting groove is formed on the side surface of the piece cutter. As a method for providing the wear preventing material, different materials are attached to the wear preventing material mounting groove of the piece cutter by welding, spraying, fitting, bonding, brazing, fitting, or the like. In this way, a wear prevention material mounting groove of a predetermined depth is provided on the side surface of the piece cutter,The groove width of the wear preventing material mounting groove is preferably made smaller than the dimension between the grooves of the wear preventing material mounting groove.By providing anti-wear material of dissimilar materials in the groove almost flush with the side surface of the piece cutter, the width of the piece cutter is accurately finished and the function as a slit cutter that crushes by a shearing action is stably exhibited. Side wear due to crushing can be made difficult. Even if this anti-wear material is worn by use, if this anti-wear material is replaced with a new anti-wear material and regenerated, then the piece cutter is fixed to a predetermined part of the base blade part again. Can be re-used as many times as possible to be used repeatedly as a rotary blade with little side wear.
[0014]
Further, the wear prevention material mounting groove is formed so as to be continuous between the different side edge portions of the piece cutter, and the wear prevention material is provided in the wear prevention material mounting groove, so that wear is also caused at the edge portion of the piece cutter side surface. Since wear is suppressed by the preventive material, it is possible to effectively suppress wear at the edge portion that is easily worn.
[0015]
  MoreBeforeIf the depth of the wear preventing material mounting groove is made smaller than the width of the wear preventing material mounting groove, the replacement can be easily performed.
[0016]
  On the other hand, the biaxial shearing type crushing which it arranged so that it might be oppositely turned inward in the state where it provided alternately by the axis arranged in parallel with the casing on both sides of the spacer in the state where the opposite side faces closely wrapped each other In the rotary blade of the machine, the rotary blade is provided with a cutter body formed with a plurality of claws on the outer periphery on the shaft, and the claws are close to the outer peripheral surface of the opposing spacer at the same time as the work is drawn in during rotation. The workpiece is sheared to a certain length by a shearing action between the opposing claws, and wear at a predetermined depth on the outer diameter side of at least the surface of the cutter body in contact with the spacer. Provide multiple prevention material mounting grooves at a predetermined interval,The groove width of the wear preventing material mounting groove is made smaller than the dimension between the grooves of the wear preventing material mounting groove,The plurality of wear prevention material mounting grooves may be provided with wear prevention materials of different materials that are substantially flush with the side surface of the cutter body. This configuration relates to a mono cutter (integrated cutter). In this case, the anti-wear material mounting groove may be formed on the outer diameter side of at least the surface in contact with the spacer on the side surface of the cutter body. As a method for providing the wear prevention material, different materials are attached to the wear prevention material mounting groove of the cutter body by welding, spraying, fitting, bonding, brazing, fitting, or the like. Thus, a wear prevention material mounting groove of a predetermined depth is provided on the side surface of the cutter body,The groove width of the wear preventing material mounting groove is preferably made smaller than the dimension between the grooves of the wear preventing material mounting groove.By providing anti-wear material of dissimilar material in this groove almost flush with the side of the cutter body, the slit cutter can function stably as a slit cutter that accurately finishes the width of the cutter body and crushes it with a shearing action. Side wear due to crushing can be made difficult. In other words, it is possible to make the side wear of the part provided with the wear prevention material on the outer diameter side from the part in contact with the spacer around the shaft difficult to wear, and the function as a slit cutter that crushes by a shearing action is stable for a long time. Can be demonstrated. And even if this wear prevention material is worn by use, after replacing the wear prevention material with a new wear prevention material and regenerating it, if the cutter body is fixed again at a predetermined position of the base blade portion, it will be worn out or lost. The part can be regenerated as many times as possible to be used repeatedly as a rotary blade that is less likely to wear side surfaces.
[0018]
  Also,If the depth of the wear preventing material mounting groove is made smaller than the width of the wear preventing material mounting groove, the replacement can be easily performed.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view from the front showing an embodiment of a biaxial shearing crusher to which the present invention is applied, and FIG. 2 shows a rotary blade using a piece cutter in the biaxial shearing crusher shown in FIG. It is a disassembled perspective view.
[0020]
First, the configuration of the entire biaxial shearing crusher equipped with the rotary blade according to the present invention will be described. In FIG. 1, a main shaft 1 and a sub shaft 2 having two rectangular cross sections are arranged in parallel substantially at regular intervals. Each of the shafts 1 and 2 is a rotary shaft whose both shaft ends are supported by a box-shaped casing 3 so as to be rotatable via bearings (not shown). The main shaft 1 is connected to a drive shaft of an electric motor (not shown). When the main shaft 1 is rotated counterclockwise, the slave shaft 2 rotates in the right direction opposite to this. That is, the two shafts 1 and 2 are configured to rotate oppositely inward (in the direction of the arrow in the figure).
[0021]
Disc-shaped rotary blades C are alternately provided on the two shafts 1 and 2 with spacers 9 in between. These rotary blades C are mounted in a state where their side surfaces are closely wrapped with each other. On the outer periphery of each rotary blade C, a plurality of claws 6a for drawing and cutting the processed material are provided on the circumference at regular intervals. The claw 6a shears the processed material to a certain length by the shearing action between the opposing claws 6a close to the outer peripheral surface of the opposing spacer 9 simultaneously with the action of drawing the processed material when the rotary blade C rotates. Has the effect of That is, the side surfaces of a pair of opposed rotary blades C are always closely wrapped to form a slit cutter, and the processed material introduced from above the casing 3 is drawn in by the claw 6a, and is caused by the shearing action of the slit cutter. It is crushed and discharged downward.
[0022]
A scraper 4 protrudes from the side of the box-shaped casing 3 toward a position facing the rotary blade C and the spacer 9. The tip of the scraper 4 is formed in a semicircular arc shape so as to be close to the rotary blade C (tip of the claw 6a) and the peripheral surface of the spacer 9, respectively. The scraper 4 works to scrape off the processed material sandwiched between the rotary blades C.
[0023]
By the way, in the case of the rotary blade C having the above-described function, the outer peripheral cutting edge portion 6 is likely to be worn, and particularly the portion and the side surface of the claw 6a are likely to be worn.
[0024]
Therefore, the rotary blade C according to this embodiment is configured as shown in FIG. That is, as shown in FIG. 2, the rotary blade C is divided and formed into a base blade portion 5 attached to the shafts 1 and 2 having a rectangular cross section and a blade tip portion 6 surrounding the same. In addition, the blade edge portion 6 is configured by joining a plurality of substantially bowl-shaped piece cutters 7 divided in the circumferential direction (six divisions in this example) on the circumference. The part 5 is detachable as will be described later.
[0025]
The joint boundary surface 10 between the cutting edge portion 6 and the base blade portion 5 is not exposed to the surface, that is, is completely surrounded by the piece cutter 7 so that the entire outer periphery of the base blade portion 5 is not exposed to the surface. ing. As a result, wear occurs only in the blade edge portion 6 and does not occur in the base blade portion 5. Therefore, since the portion of the base blade portion 5 is protected by the blade edge portion 6 and is not worn, only the blade edge portion 6 needs to be replaced. In addition, a stepped tooth portion 10a is formed on the outer periphery of the base blade portion 5 so as to be engaged with each piece cutter 7. The shaft portion 10a can reliably transmit the axial rotational force to the blade edge 6 portion. At the same time, the tooth portion 10a handles the reaction force at the time of cutting.
[0026]
Each piece cutter 7 is provided with a bolt hole 8. By inserting a bolt from this bolt hole 8 and screwing it into a female screw hole 8 a provided in the base blade portion 5, each piece cutter 7 has a base blade. A single rotary blade C is formed by being integrally attached to the outer periphery of the portion 5 in a detachable state.
[0027]
In the following first to fourth embodiments, a reproducible wear prevention material 11 is provided in advance on the side portion and the nail that are easily worn and chipped in the piece cutter 7 configured as described above.
[0028]
3 is a drawing of the first embodiment of the piece cutter of the rotary blade shown in FIG. 2, wherein (a) is a perspective view, (b) is a partially enlarged view, and FIG. 4 is a piece cutter of the rotary blade shown in FIG. (A) is a perspective view, (b) is a partially enlarged view, and FIG. 5 is a drawing of a third embodiment according to the piece cutter of the rotary blade shown in FIG. a) is a perspective view, (b) is a partially enlarged view, FIG. 6 is a drawing of a fourth embodiment of the piece cutter of the rotary blade shown in FIG. 2, (a) is a perspective view, and (b) is a partially enlarged view. FIG. Note that FIG. 3 uses the reference numerals of FIG. 2 described above, and FIGS. 4 to 6 use the same reference numerals for the same configurations as those of FIG.
[0029]
The piece cutter 7 of the first embodiment shown in FIGS. 3 (a) and 3 (b) is substantially parallel to the joint surface 7a of the piece cutter 7 on the side surface of the piece cutter 7, as shown in FIG. 3 (a). A wear preventing material mounting groove 12 is formed in the lateral direction. In this example, the anti-wear material mounting groove 12 is formed so as to be continuous between edge portions (corner portions) that are parallel to the joint surface 7a. A plurality of the wear preventing material mounting grooves 12 are provided at predetermined intervals. The predetermined interval can be set according to the processing object, use conditions, and the like, but it is preferable in terms of processing that the groove width w of the wear preventing material mounting groove 12 is smaller than the dimension p between the mounting grooves 12. In addition, the depth h of the wear preventing material mounting groove 12 varies depending on the material of the wear preventing material 11, but a dimension smaller than the groove width w can be easily replaced. The depth h may be a dimension that can exhibit a certain amount of wear resistance for a predetermined period (for example, a maintenance interval of the machine body).
[0030]
As shown in FIG. 3 (b), an anti-wear material 11 made of a different material is provided in the anti-wear material mounting groove 12. The wear prevention material 11 is preferably a material having higher hardness and higher wear resistance than the body material of the piece cutter 7, and a material containing tungsten carbide, chrome carbide or the like is used. A material used for so-called hard facing is used.
[0031]
When welding is adopted as a method of providing the wear prevention material 11, after the wear prevention material mounting groove 12 is processed in the lateral direction of the side surface of the piece cutter 7, tungsten carbide powder serving as the wear prevention material 11 is reinforced in the groove 12. After build-up welding with the build-up wire, the edge portion of the piece cutter 7 is processed, and the surface of the reinforced build-up welding is processed in the same plane as the surface of the piece cutter 7. In this way, the anti-wear material 11 made of a different material is integrally provided on the side surface of the piece cutter 7.
[0032]
Further, when the anti-wear material 11 is provided by bonding or brazing, the anti-wear material 11 is previously formed in a shape that matches the shape of the anti-wear material mounting groove 12, and this anti-wear material 11 is formed in the anti-wear material mounting groove 12. It may be provided by fitting and bonding or brazing.
[0033]
Furthermore, in this embodiment, the wear preventing material 11 is provided also in the part of the nail | claw 6a with which the blade edge | tip part 6 is especially worn easily, and the corner | angular part of the nail | claw 6a. As indicated by the two-dotted line in the figure, like the wear prevention material 11 provided on the side surface, the claw 6a and the wear prevention material mounting groove 12 at the corner of the claw 6a are processed, and then the groove 12 is worn. After the overlaying welding of tungsten carbide powder as the prevention material 11 with the reinforcing cladding wire, the edges of the claws 6a and the piece cutter 7 are processed so that the surface of the reinforcing cladding is flush with the surface of the piece cutter 7 Processing. Thus, by providing the wear prevention material 11 at the corners of the claw 6a and the blade edge portion 6, it is possible to prevent wear on the side and corners of the claw 6a that are most likely to be worn as well as wear on the side surfaces.
[0034]
4 (a) and 4 (b), the piece cutter 17 of the second embodiment is substantially orthogonal to the joint surface 17a of the piece cutter 17 on the side surface of the piece cutter 17, as shown in FIG. 4 (a). Thus, an anti-wear material mounting groove 12 is formed in the vertical direction. In this example, the anti-wear material mounting groove 12 is formed continuously between edge portions (corner portions) that are different in the orthogonal direction to the joint surface 17a. A plurality of the wear preventing material mounting grooves 12 are provided at predetermined intervals. Similar to the above-described embodiment, the predetermined interval can be set according to the processing object, use conditions, and the like. However, the groove width w of the wear preventing material mounting groove 12 is smaller than the dimension p between the mounting grooves 12. It is preferable on processing. The depth h of the groove 12 is preferably smaller than the groove width w.
[0035]
Then, as shown in FIG. 4 (b), an anti-wear material 11 made of a different material is attached to the anti-wear material mounting groove 12. This wear prevention material 11 is also preferably a material having higher hardness and higher wear resistance than the material of the piece cutter 17, and materials such as tungsten carbide and chrome carbide are used. Since the apparatus method for the wear preventing material 11 is the same as that of the first embodiment described above, detailed description thereof is omitted.
[0036]
According to the second embodiment, since the anti-wear material 11 is provided radially so as to be in a direction (radial direction) intersecting with a circle drawn by the rotating piece cutter 17, it intersects with the workpiece during shearing crushing. A preferable anti-wear effect can be exhibited by the anti-wear material 11 provided in the direction.
[0037]
The piece cutter 27 of the third embodiment shown in FIGS. 5 (a) and 5 (b) is substantially parallel to the joint surface 27a of the piece cutter 27 on the side surface of the piece cutter 27 as shown in FIG. 5 (a). An anti-wear material mounting groove 12 is formed in the vertical direction substantially perpendicular to the horizontal direction. In this example, the anti-wear material mounting groove 12 is formed continuously between edge portions (corner portions) that are different in the direction orthogonal to the parallel direction of the joint surface 27a. A plurality of the wear preventing material attaching grooves 12 are provided at a predetermined interval and are formed in a lattice shape. Similar to the above-described embodiment, the predetermined interval can be set according to the processing object, use conditions, and the like. However, the groove width w of the wear preventing material mounting groove 12 is smaller than the dimension p between the mounting grooves 12. It is preferable on processing. The depth h of the groove 12 is preferably smaller than the groove width w.
[0038]
As shown in FIG. 5 (b), the anti-wear material 11 made of a different material is provided in the anti-wear material mounting groove 12. The wear prevention material 11 is also preferably a material having higher hardness and higher wear resistance than the material of the piece cutter 27, and a material such as tungsten carbide or chrome carbide is used. Since the method of providing the wear preventing material 11 is the same as that in the first embodiment described above, detailed description thereof is omitted.
[0039]
According to the third embodiment, since many wear prevention materials 11 are provided on the side surface of the piece cutter 27, the wear resistance is most preferable.
[0040]
The piece cutter 37 of the fourth embodiment shown in FIGS. 6 (a) and 6 (b) has a circular arc on the side surface of the piece cutter 37 from the claw 6a side to the longitudinal direction of the piece cutter 37 as shown in FIG. 6 (a). The wear preventing material mounting groove 12 is formed so as to draw In this example, the wear preventing material mounting groove 12 is formed continuously between different edge portions (corner portions) on the front end side and the rear end side of the piece cutter 37. A plurality of the wear preventing material attaching grooves 12 are provided at predetermined intervals, and are arranged in parallel in the same arc. This arc may be different. Similar to the above-described embodiment, the predetermined interval can be set according to the processing object, use conditions, and the like. However, the groove width w of the wear preventing material mounting groove 12 is smaller than the dimension p between the mounting grooves 12. It is preferable on processing. The depth h of the groove 12 is preferably smaller than the groove width w.
[0041]
As shown in FIG. 6 (b), the anti-wear material 11 of a different material is provided in the anti-wear material mounting groove 12. The wear preventing material 11 is also preferably a material having higher hardness and higher wear resistance than the material of the piece cutter 37, and a material such as tungsten carbide or chrome carbide is used. Since the method of providing the wear preventing material 11 is the same as that in the first embodiment described above, detailed description thereof is omitted.
[0042]
Moreover, since the wear preventing material 11 in this embodiment is provided in the circular arc which cross | intersects the circle which the rotating piece cutter 37 draws, it crosses with a processed material at the time of shear crushing, and exhibits a preferable wear preventing effect. Can do.
[0043]
It should be noted that which form of the wear preventing material 11 in the first to fourth embodiments is to be used may be appropriately selected according to the type of the processed material, the processing amount, and the like.
[0044]
According to the piece cutters 7, 17, 27, and 37 configured as described above, when worn for a predetermined period of time, the mounting bolts of the piece cutters 7, 17, 27, and 37 are removed, and the piece cutters 7, 17, and 27 are removed. , 37 are removed from the base blade portion 5 (FIG. 2), and the wear prevention material 11 in the wear prevention material mounting groove 12 is replaced and regenerated, whereby the piece cutters 7, 17, 27, 37 are again attached to the base blade portion 5. If it is fixed at a predetermined location, it becomes possible to obtain a rotating blade that is less likely to wear side surfaces by regenerating and repeatedly using the worn and missing piece cutters 7, 17, 27, and 37.
[0045]
That is, the anti-wear material 11 made of a different material is provided with a smooth surface by various methods on the side surface of the cutting edge portion 6 formed separately around the rotary blade C provided on the rotary shaft supported by the casing 3. Thus, the piece cutter is less likely to be worn, and if worn, the wear prevention member 11 of the dissimilar material attached is replaced and regenerated, so that the rotary cutter can be reused and the piece cutter can be reused. ing.
[0046]
As a result, the scrap amount of the piece cutters (7, 17, 27, 37) is reduced, so that effective use of resources and reduction of running costs can be achieved.
[0047]
FIG. 7 is a drawing of a fifth embodiment relating to a rotary blade of a monocutter according to the present invention. FIG. 7A is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided material. In the fifth embodiment, the same components as those in the second embodiment shown in FIG.
[0048]
As shown in the figure, the rotary blade 47 is provided with a hole attached to the main shaft 1 or the slave shaft 2 described above at the center, and a plurality of claws 6a are integrally formed at equal intervals in the circumferential direction. . The rotary blade 47 is a mono cutter that is integrally formed as a whole. Each mono cutter is mounted on the shafts 1 and 2 (FIG. 1) with a spacer 9 (FIG. 1) interposed therebetween. And the wear prevention material attachment groove | channel 12 (FIG. 4) of predetermined depth is formed in the side part of the cutter main body 13 comprised in this way, and the side surface of a cutter main body is substantially surface in this wear prevention material attachment groove | channel 12. An anti-wear material 11 made of different materials is provided in advance. (A) shown in the figure is an example in which the anti-wear material mounting groove 12 is provided on the entire surface, and (b) is an example in which the anti-wear material mounting groove 12 is provided in addition to the portion in contact with the spacer 9 (the white circle in the center). is there.
[0049]
In this embodiment, wear prevention material mounting grooves 12 that are substantially parallel to the side surface of the cutter body 13 are provided at predetermined intervals. The predetermined interval for providing the wear preventing material mounting groove 12 can be set according to the processing object, use conditions, etc., but the groove width w (FIG. 4) of the wear preventing material mounting groove 12 is the dimension between the mounting grooves 12. Smaller than p is preferable for processing. Further, the depth h (FIG. 4) of the wear preventing material mounting groove 12 varies depending on the material of the wear preventing material 11, but a dimension smaller than the groove width w can be easily replaced. The depth h may be a dimension that can exhibit a certain amount of wear resistance for a predetermined period (for example, a maintenance interval of the machine body).
[0050]
The wear preventive material 11 is provided with a wear preventive material 11 made of a different material. The wear prevention material 11 is preferably a material having higher hardness and higher wear resistance than the material of the cutter body 13, and a material including tungsten carbide or chrome carbide is used. A material used for so-called hard facing is used.
[0051]
When welding is adopted as a method of providing the wear preventing material 11, a tungsten carbide powder serving as the wear preventing material 11 is strengthened in the groove 12 after machining the wear preventing material attaching groove 12 on the side surface of the cutter body 13. After overlay welding with a wire, the edge portion of the cutter body 13 is processed, and the surface of the reinforced overlay welding is processed into the same surface as the surface of the cutter body 13. In this way, the anti-wear material 11 made of a different material is integrally provided on the side surface of the cutter body 13.
[0052]
Further, when the anti-wear material 11 is provided by bonding or brazing, the anti-wear material 11 is previously formed in a shape that matches the shape of the anti-wear material mounting groove 12, and this anti-wear material 11 is formed in the anti-wear material mounting groove 12. It may be provided by fitting and bonding or brazing.
[0053]
Furthermore, in this embodiment, the wear preventing material 11 is provided also in the part of the nail | claw 6a which is especially easy to wear, and the corner | angular part of the nail | claw 6a. As indicated by the two-dot chain line in FIG. 7 (a), like the anti-wear material 11 provided on the side surface, the nail 6a and the anti-wear material mounting groove 12 at the corner of the nail 6a are processed, After the tungsten carbide powder serving as the anti-wear material 11 is welded to the groove 12 with the reinforcing cladding wire, the edges of the claw 6a and the cutter body 13 are processed to make the surface of the reinforcing cladding the surface of the cutter body 13 Are processed on the same surface. Thus, by providing the wear prevention material 11 at the corners of the claws 6a and the claws 6a, it is possible to prevent wear on the side and corners of the claws 6a that are most likely to be worn, as well as wear on the side surfaces.
[0054]
FIG. 8 is a drawing of a sixth embodiment relating to the rotary blade of the monocutter according to the present invention. FIG. 8A is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided material. In the sixth embodiment, the same components as those in the fifth embodiment (FIG. 7) and the third embodiment (FIG. 5) are denoted by the same reference numerals, and only the reference numerals of the rotary blades are different.
[0055]
In the rotary blade 57 according to the sixth embodiment, a wear preventing material mounting groove 12 (FIG. 5) that is substantially parallel is formed on the side surface of the cutter body 13 so as to be substantially orthogonal to each other in the vertical direction and the horizontal direction. That is, in this embodiment, the plurality of wear preventing material mounting grooves 12 are formed in a lattice shape at predetermined intervals. Similar to the third embodiment, the predetermined interval can be set according to the processing object, use conditions, and the like. However, the groove width w (FIG. 5) of the wear preventing material mounting groove 12 is the dimension between the mounting grooves 12. Smaller than p (FIG. 5) is preferable for processing. Further, the depth h (FIG. 5) of the groove 12 is preferably smaller than the groove width w.
[0056]
The wear preventive material 11 is provided with a wear preventive material 11 made of a different material. The wear preventing material 11 is also preferably a material having higher hardness and higher wear resistance than the material of the cutter body 13, and a material such as tungsten carbide or chrome carbide is used. Since the method of providing the wear preventing material 11 is the same as that in the first embodiment described above, detailed description thereof is omitted. According to the sixth embodiment, since many wear prevention materials 11 are provided on the side surface of the rotary blade 57, wear resistance is preferable.
[0057]
FIGS. 9A and 9B are drawings of a seventh embodiment of the rotary blade of the monocutter according to the present invention. FIG. 9A is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided material. In the seventh embodiment, the same components as those in the fifth embodiment (FIG. 7) and the fourth embodiment (FIG. 6) are denoted by the same reference numerals, and only the reference numerals of the rotary blades are different.
[0058]
In the rotary blade 67 in the seventh embodiment, the wear preventing material mounting groove 12 (FIG. 6) is formed on the side surface of the cutter body 13 so as to draw an arc. A plurality of the wear preventing material attaching grooves 12 are provided at predetermined intervals, and are arranged in parallel in the same arc. This arc may be different. Similar to the fourth embodiment, the predetermined interval can also be set according to the processing object, use conditions, and the like. However, the groove width w (FIG. 6) of the wear preventing material mounting groove 12 is the dimension between the mounting grooves 12. Smaller than p (FIG. 6) is preferable for processing. The depth h (FIG. 6) of the groove 12 is preferably smaller than the groove width w.
[0059]
The wear preventive material 11 is provided with a wear preventive material 11 made of a different material. The wear preventing material 11 is also preferably a material having higher hardness and higher wear resistance than the material of the cutter body 13, and a material such as tungsten carbide or chrome carbide is used. Since the method of providing the wear preventing material 11 is the same as that in the first embodiment described above, detailed description thereof is omitted.
[0060]
FIG. 10 is a drawing of an eighth embodiment relating to the rotary blade of the mono-cutter according to the present invention. FIG. 10 (a) is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided material. In the eighth embodiment, the same reference numerals are given to the same components as those in the fifth embodiment (FIG. 7) and the second embodiment (FIG. 4), and only the rotary blades are different.
[0061]
In the rotary blade 77 according to the eighth embodiment, a plurality of wear prevention material mounting grooves 12 are formed radially on the side surface of the cutter body 13 from the center of the cutter body 13. A plurality of wear prevention material mounting grooves 12 are provided at a predetermined angle. This predetermined angle can be set according to the processing object, use conditions, etc., as in the case of the predetermined interval in the above-described embodiment. Smaller than the dimension p (FIG. 4) between the mounting grooves 12 is preferable for processing. Further, the depth h (FIG. 4) of the groove 12 is preferably smaller than the groove width w.
[0062]
The wear preventive material 11 is provided with a wear preventive material 11 made of a different material. The wear preventing material 11 is also preferably a material having higher hardness and higher wear resistance than the material of the cutter body 13, and a material such as tungsten carbide or chrome carbide is used. Since the method of providing the wear preventing material 11 is the same as that in the first embodiment described above, detailed description thereof is omitted.
[0063]
According to the eighth embodiment, since the wear preventing material 11 is provided radially so as to be in a direction (radial direction) intersecting with a circle drawn by the rotating cutter 97, the direction intersecting with the processing object at the time of shear crushing The anti-wear material 11 provided on can provide a preferable anti-wear effect during shearing.
[0064]
FIG. 11 is a drawing of a ninth embodiment relating to the rotary blade of the monocutter according to the present invention. FIG. 11A is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided material. In the ninth embodiment, the same components as those in the seventh embodiment (FIG. 9) and the fourth embodiment (FIG. 6) are denoted by the same reference numerals, and only the reference numerals of the rotary blades are different.
[0065]
In the rotary blade 87 according to the ninth embodiment, the wear prevention material mounting groove 12 is formed on the side surface of the cutter body 13 so as to draw an arc having the claw 6a as the center. In this example, the anti-wear material mounting groove 12 that is continuous between the front and rear edge portions (corner portions) of the claw 6a is formed. In this embodiment, the wear preventing material mounting grooves 12 are formed on almost the entire side surface of the cutter body 13 with the six claws 6a as the center. A plurality of the wear preventing material attaching grooves 12 are provided at predetermined intervals, and are arranged in parallel in the same arc. This arc may be different, and the form is not limited to this embodiment. Further, the predetermined interval for providing the wear preventing material mounting groove 12 can also be set according to the processing object, use conditions, etc., as in the above-described embodiment, but the groove width w (see FIG. 6) is preferably smaller than the dimension p (FIG. 6) between the mounting grooves 12 in terms of processing. The depth h (FIG. 6) of the groove 12 is preferably smaller than the groove width w.
[0066]
The wear preventive material 11 is provided with a wear preventive material 11 made of a different material. The wear preventing material 11 is also preferably a material having higher hardness and higher wear resistance than the material of the cutter body 13, and a material such as tungsten carbide or chrome carbide is used. Since the method of providing the wear preventing material 11 is the same as that in the first embodiment described above, detailed description thereof is omitted.
[0067]
Moreover, since the wear preventing material 11 in this embodiment is provided in the circular arc which cross | intersects the circle which the rotating rotary blade 87 draws, it exhibits a preferable wear prevention effect crossing with a processed material at the time of shear crushing. Can do.
[0068]
FIG. 12 is a drawing of a tenth embodiment relating to the rotary blade of the monocutter according to the present invention. FIG. 12 (a) is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided material. In the tenth embodiment, the same reference numerals are given to the same components as those in the seventh and fourth embodiments, and only the symbols of the rotary blades are different.
[0069]
In the rotary blade 97 according to the tenth embodiment, a plurality of wear prevention material mounting grooves 12 (FIG. 6) are formed concentrically on the side surface of the cutter body 13. A plurality of the wear preventing material mounting grooves 12 are provided at predetermined intervals. The predetermined intervals for providing these wear preventing material mounting grooves 12 can be set according to the processing object, use conditions, etc., but the groove width w (FIG. 6) of the wear preventing material mounting grooves 12 is the dimension between the mounting grooves 12. Smaller than p (FIG. 6) is preferable for processing. The depth h (FIG. 6) of the groove 12 is preferably smaller than the groove width w.
[0070]
The wear preventive material 11 is provided with a wear preventive material 11 made of a different material. The wear preventing material 11 is also preferably a material having higher hardness and higher wear resistance than the material of the cutter body 13, and a material such as tungsten carbide or chrome carbide is used. Since the method of providing the wear preventing material 11 is the same as that in the first embodiment described above, detailed description thereof is omitted.
[0071]
According to the rotary blades 47, 57, 67, 77, 87, and 97 (monocutter) configured as described above, it is possible to provide a rotary blade that is less likely to wear side surfaces. Moreover, even when worn, it can be reused as a rotary blade that is less likely to be worn by replacing and refurbishing the attached anti-wear material 11 made of different materials. As a result, the amount of scrap of the rotary blades (47, 57, 67, 77, 87, 97) is reduced, and effective use of resources and reduction of running costs can be achieved. Further, as shown in (a) of each figure, the wear prevention material 11 is provided on the entire side surface of the cutter body 13 or, as shown in (b) of each figure, the portion in contact with the spacer 9 (center Whether the anti-wear material 11 is provided in addition to the white circle portion may be determined according to the size and shape of the cutter body 13. Further, which form of the wear preventing material 11 in the fifth to tenth embodiments is to be used may be appropriately selected according to the type of the processed material, the processing amount, and the like.
[0072]
In addition, it is possible to combine the anti-wear material mounting groove 12 in any of the above-described embodiments, and it may be set according to the processing object, use conditions, etc., and is not limited to the above-described embodiment. .
[0073]
Further, the above-described embodiment is an embodiment, and various modifications can be made without departing from the spirit of the present invention, and the present invention is not limited to the above-described embodiment.
[0074]
【The invention's effect】
The present invention is implemented in the form described above, and has the following effects.
[0075]
Anti-wear material is pre-installed on the side of the cutter that tends to wear and break, making it difficult to wear and chip, and can be reused and reused any number of times. And the running cost as the whole biaxial shear type crushing apparatus can be reduced, and it becomes possible to obtain a big economic effect.
[Brief description of the drawings]
FIG. 1 is a sectional view from the front showing an embodiment of a twin-screw shearing crusher to which the present invention is applied.
2 is an exploded perspective view of a rotary blade using a piece cutter in the biaxial shearing crusher shown in FIG. 1. FIG.
3 is a drawing of the first embodiment of the piece cutter of the rotary blade shown in FIG. 2, wherein (a) is a perspective view and (b) is a partially enlarged view. FIG.
4 is a drawing of a second embodiment according to the piece cutter of the rotary blade shown in FIG. 2, wherein (a) is a perspective view and (b) is a partially enlarged view. FIG.
5 is a drawing of a third embodiment of the piece cutter of the rotary blade shown in FIG. 2, wherein (a) is a perspective view and (b) is a partially enlarged view. FIG.
6 is a drawing of a fourth embodiment according to the piece cutter of the rotary blade shown in FIG. 2, wherein (a) is a perspective view and (b) is a partially enlarged view. FIG.
FIGS. 7A and 7B are drawings of a fifth embodiment of the rotary blade of the monocutter according to the present invention, in which FIG. 7A is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided the prevention material.
FIGS. 8A and 8B are drawings of a sixth embodiment of the rotary blade of the monocutter according to the present invention, in which FIG. 8A is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided the prevention material.
FIGS. 9A and 9B are drawings of a seventh embodiment of the rotary blade of the monocutter according to the present invention, FIG. 9A is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided the prevention material.
FIG. 10 is a drawing of an eighth embodiment relating to the rotary blade of the monocutter according to the present invention, in which (a) is a perspective view of an example in which an anti-wear material is provided on the entire surface, and (b) is wear except for a portion in contact with a spacer It is a perspective view of the example which provided the prevention material.
FIG. 11 is a drawing of a ninth embodiment relating to a rotary blade of a monocutter according to the present invention, in which (a) is a perspective view of an example in which an anti-wear material is provided on the entire surface, and (b) is wear except for a portion in contact with a spacer It is a perspective view of the example which provided the prevention material.
FIGS. 12A and 12B are drawings of a tenth embodiment relating to a rotary blade of a monocutter according to the present invention, wherein FIG. 12A is a perspective view of an example in which an anti-wear material is provided on the entire surface, and FIG. It is a perspective view of the example which provided the prevention material.
[Explanation of symbols]
1 ... Spindle
2 ... Slave shaft
5 ... Tail base part
6 ... Cutting edge
6a ... nail
7 ... Peace cutter
9 ... Spacer
10 ... Junction interface
11 ... Wear prevention material
12 ... Wear prevention material mounting groove
13. Cutter body
17 ... Peace cutter
27 ... Peace cutter
37 ... Peace cutter
47 ... Rotating blade
57 ... Rotating blade
67 ... Rotating blade
77 ... Rotating blade
87 ... Rotating blade
97 ... Rotating blade
C ... Rotating blade
w ... width of groove
p ... Dimension (between grooves)
h ... depth (mounting groove)

Claims

A biaxial shearing type crusher configured to rotate oppositely inward in a state in which opposed side surfaces are closely wrapped with each other on shafts arranged in parallel to the casing, with the opposite side faces closely wrapped. In the rotary blade,
The rotary blade is provided with a blade portion on the shaft and a blade edge portion so as to surround the blade portion, and the blade edge portion is divided in the circumferential direction and formed by a plurality of piece cutters. The cutter is configured to be detachable from the blade part,
The piece cutter is adapted to shear the processed material to a certain length by the shearing action between the opposing piece cutters, close to the outer peripheral surface of the opposing spacer at the same time that the outer peripheral claw draws the processed material when rotating. Configured,
A plurality of wear prevention material mounting grooves of a predetermined depth are provided on the side surface of the piece cutter at predetermined intervals,
The groove width of the wear preventing material mounting groove is made smaller than the dimension between the grooves of the wear preventing material mounting groove,
A rotary blade of a biaxial shearing type crusher, wherein the plurality of wear prevention material mounting grooves are provided with wear prevention materials of different materials substantially flush with the side surfaces of the piece cutter.

2. The biaxial shear according to claim 1, wherein the wear preventing material mounting groove is formed to be continuous between different side edge portions of the piece cutter, and the wear preventing material is provided in the wear preventing material mounting groove. Rotary crusher blade.

The rotary blade of the biaxial shearing crusher according to claim 1 or 2 , wherein a depth of the wear preventing material mounting groove is smaller than a width of the wear preventing material mounting groove.

A biaxial shearing type crusher configured to rotate oppositely inward in a state in which opposed side surfaces are closely wrapped with each other on shafts arranged in parallel to the casing, with the opposite side faces closely wrapped. In the rotary blade,
The rotary blade is provided with a cutter body having a plurality of claws formed on the outer periphery on the shaft, and the claws are close to the outer peripheral surface of the opposing spacer at the same time as the action of drawing the processed material at the time of rotation. It is configured to shear the processed material to a certain length by the shearing action of
A plurality of wear prevention material mounting grooves having a predetermined depth are provided at a predetermined interval on the outer diameter side of at least a surface of the side surface of the cutter body that contacts the spacer,
The groove width of the wear preventing material mounting groove is made smaller than the dimension between the grooves of the wear preventing material mounting groove,
A rotary blade of a biaxial shearing type crusher, wherein the plurality of wear prevention material mounting grooves are provided with wear prevention materials of different materials substantially flush with the side surfaces of the cutter body.

The rotary blade of the biaxial shear type crusher according to claim 4 , wherein the depth of the wear preventing material mounting groove is made smaller than the width of the wear preventing material mounting groove.