JP4807812B2

JP4807812B2 - Crushed stone processing equipment

Info

Publication number: JP4807812B2
Application number: JP2000244994A
Authority: JP
Inventors: 豊信太; 秀巨信太; 清路信太
Original assignee: 新六精機株式会社
Priority date: 2000-08-11
Filing date: 2000-08-11
Publication date: 2011-11-02
Anticipated expiration: 2020-08-11
Also published as: JP2002059018A

Description

【０００１】
【発明の属する技術分野】
この発明は、一方向に回転駆動され、かつ内周面に掻き上げ羽根が取付けられた回転ドラムと、該回転ドラムの内部に偏心して配設され、かつ回転ドラムとは反対方向に回転駆動されるとともに、外周面にその周方向に沿って山部と谷部とが交互に連続する波形状の保持羽根が取付けられたロータとを備え、回転ドラム内に投入された砕石等を掻き上げ羽根と保持羽根との作用で角のとれた丸みのあるものにする砕石等処理装置に関する。
【０００２】
【従来の技術】
従来のこの種の装置としては、実公昭５６−４６８４１号に記載のものが知られている。この従来例も、この発明も、その基本原理は、一方向に回転駆動される回転ドラムと、この回転ドラムの内部に偏心して配設されかつこの回転ドラムとは逆方向にしかもより速く回転駆動されるロータと、前記回転ドラムの内周面に取付けられた複数の掻き上げ羽根と、前記ロータの外周面に取付けられた複数の保持羽根とを備え、回転ドラムの内周面とロータの外周面との距離が最短の個所を含む回転ドラム内の略４分の１のスペースにおいて砕石等を互いに逆方向に進行する掻き上げ羽根と保持羽根とにより処理するようにしたことにある。従来例では、前記保持羽根の山部の頂面を平滑面に形成し、回転方向に対して前位の山部の頂面から谷部に向けて緩やかな傾斜壁を形成し、谷部から後位の山部の頂面へ向けて谷部の面と略直角に交わる線に沿って直壁を形成することにより、砕石等同士のぶつかり合いやこすり合いの度合いを強めて、より一層の処理能力の向上を図った。
【０００３】
【発明が解決しようとする課題】
従来例では、破砕、研磨機能は向上したが、原料投入側から処理済みのものを排出する排出口までの距離を長くする必要があった。何故なら、回転方向においては十分な破砕、研磨等が期待できるが、軸方向（投入口から排出口にわたる方向）においては、砕石等の原料を所定の個所ごとに十分な時間滞留させておく工夫がなされていなかったからである。
【０００４】
そこで、この発明は、回転方向のみならず軸方向において砕石等を十分な時間滞留させて破砕、研磨することができ、装置のコンパクト化も図れる砕石等処理装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上述の目的を達成するため、この発明は、一方向に回転駆動される回転ドラムと、この回転ドラムの内部に偏心して配設されかつこの回転ドラムとは逆方向にしかもより速く回転駆動されるロータと、前記回転ドラムの内周面に取付けられた複数の掻き上げ羽根と、前記ロータの外周面に取付けられた複数の保持羽根とを備え、回転ドラムの内周面とロータの外周面との距離が最短の個所を含む回転ドラム内の略４分の１のスペースにおいて砕石等を互いに逆方向に進行する掻き上げ羽根と保持羽根とにより処理するようにし、前記保持羽根はロータの円周方向において山部と谷部とが交互に形成されるとともに、ロータの軸方向における山部が複数の谷間によって分断されて形成され、これら谷間は底部に向って徐々に狭くなるように形成された砕石処理装置において、排出口側に位置するロータ端部側の保持羽根の山部は、他の保持羽根の山部よりも高く形成され、前記保持羽根の高い山部のロータの軸線方向に沿った各列は、投入口から送られてきた原料を押し戻す方向にロータの軸線に対して傾斜して形成され、前記保持羽根の投入口側に位置する低い山部のロータの軸線方向に沿った各列は、投入口から投入された原料を排出口に向けて送れるようにロータの軸線に対して傾斜して形成され、前記低い山部を有する保持羽根の円周方向で隣り合う山部間において山部と谷間とは交互に存在するように配列され、前記保持羽根の谷部の両壁は、ロータの回転方向に向けて徐々にその間隔を狭めるように形成され、前記投入口側の掻き上げ羽根の山部と谷部との軸線に対する傾斜方向が原料を投入口から排出口側へ送る方向に傾斜し、排出口側の掻き上げ羽根には反対の傾斜がつけられているものである。
また、前記排出口側の保持羽根の山部と回転ドラムの内周面との原料処理空間が、低い山部と回転ドラムの内周面との原料処理空間よりも狭く形成されたものである。
【０００６】
【発明の実施の形態】
以下に、この発明の好適な実施例を図面を参照にして説明する。
【０００７】
図１に示す実施例において、一方向に回転駆動される回転ドラム１と、この回転ドラム１の内部に偏心して配設されかつこの回転ドラム１とは逆方向にしかもより速く回転駆動されるロータ２と、回転ドラム１の内周面に取付けられた複数の掻き上げ羽根３と、ロータ２の外周面に取付けられた複数の保持羽根４とを備え、回転ドラム１の内周面とロータ２の外周面との距離が最短の個所を含む回転ドラム１内の略４分の１のスペースにおいて砕石等の原料を互いに逆方向に進行する掻き上げ羽根３と保持羽根４とで剪断作用やすり合せ作用などにより処理するようにしてある。ロータ２は回転軸５に取付けてあり、回転ドラム１の図面（図１）上右側は砕石等の原料の投入口６である。回転ドラム１の図面上左側は処理された砕石等の排出口となる。保持羽根４は、図１において軸線方向で四列にわたって設けられ、最後の列の保持羽根４（排出口側）の山部４Ａ´が他の三列の山部４Ａよりも高く形成され、この高い山部４Ａ´と回転ドラム１の内周面との原料処理空間は、他の山部４Ａの原料処理空間よりも狭くなる。この保持羽根４は、ロータ２の円周方向において山部４Ａ，４Ａ´と谷部４Ｂ，４Ｂ´とが交互に形成されている。山部４Ａ´は砕石等の処理の最終段階側すなわち排出口側に位置した個所に設けられ、山部４Ａはこの山部４Ａ´よりも背丈が低く、原料の投入口６側から三列にわたって設けてある。また、ロータ２の軸方向における山部４Ａ，４Ａ´が複数の谷間４Ｃ，４Ｃ´によって分断されて形成されている。そして、これら谷間４Ｃ，４Ｃ´はその底部に向って徐々に狭くなるように形成されている。また、この谷間４Ｃ，４Ｃ´の両壁１０は、後述するように、ロータ２の回転方向に向けて徐々にその間隔を狭めるように形成されている。すなわち、砕石等が送られる方向の入口が広く出口が狭くなるように形成してある。図１において砕石等の原料は符号Ａで示す。山部４Ａ´が山部４Ａより背が高いため、投入口６より投入された原料は、山部４Ａ´と山部４Ａの段差により強制的に圧密されることにより、なお一層品質の良い製品を産出することができる。
【０００８】
図２は図１における低い山部４Ａを備えた保持羽根４の個所の縦断面であり、回転ドラム１とロータ２との相互の位置関係並びに掻き上げ羽根３と保持羽根４との相互の位置関係を示す。
【０００９】
図３は、低い山部４Ａを備えた保持羽根４の一単位の斜視図を示す。この山部４Ａの頂面４Ｄを平滑面に形成し、回転方向に対して前位の山部４Ａの頂面から谷部４Ｂに向けて緩やかな傾斜壁４Ｅを形成し、谷部４Ｂから後位の山部４Ａの頂面４Ｄへ向けて谷部４Ｂの面と略直角に交わる線に沿って直壁４Ｆを形成してある。また谷部４Ｂはその軸線方向において谷間４Ｃまでの高さに形成されたリブ４０により仕切られている。
【００１０】
図４は、図３のＡ−Ａ線断面図を示し、谷部４Ｂにはこの保持羽根４をロータ２に取付けるための取付孔４１が設けてある。
【００１１】
図５はこの保持羽根４の一単位の正面図であり、図６はその背面図である。これらの両図面から、軸線方向に沿って所定の間隔で設けられた山部４Ａの間に形成される谷間４Ｃの形状が明らかとなる。すなわち、この谷間４Ｃはその両壁１０が底部１１に向けて徐々に狭くなるテーパ形状をなしている。また、前述したように、両壁１０は、回転方向に向けて徐々にその間隔が狭くなるテーパ形状に形成されている（図５参照）。すなわち、図５において、谷間４Ｃは、上下方向のみならず、図面上手前から紙面を貫く方向に向けて夫々テーパ形状をなしている。なお、この保持羽根４は図３に示すように一単位のものにおいて、山部４Ａが二列設けてあり、一方の列の山部４Ａは４個、他方の列の山部４Ａは３個とし、一方の谷間４Ｃを他方の山部４Ａがその円周方向において塞ぐ格好になっている。何故なら、ロータ２が回転していくとき、回転方向の前位の谷間４Ｃに挟まれたのちに通過してきた砕石等の原料Ａが他方の山部４Ａの直壁４Ｆにぶつかって、原料Ａに十分に圧力をかけることができるようにするためである。
【００１２】
図７は、高い山部４Ａ´を備えた保持羽根４の斜視図を示す。この保持羽根４は、周方向において隣合う山部４Ａ´同士と谷間４Ｃ´同士は、同じ円周上に存在する。すなわち、低い山部４Ａを備えた保持羽根４のように、同じ円周上に山部４Ａと谷間４Ｃとが交互に配置されていない。
【００１３】
図８は、図７における周方向で隣合う谷間４Ｃ´に沿って切断した断面であり、背の低い山部４Ａを備えた保持羽根４と同様に、頂面４Ｄ´、傾斜壁４Ｅ´、直壁４Ｆ´を有し、リブ４０´及び取付孔４１´も有している。
【００１４】
図９は、背の高い山部４Ａ´を備えた保持羽根４の平面図を示す。この保持羽根４の谷間４Ｃ´も回転する方向に向けて徐々に間隔を狭め、かつ底部１１´に向けても狭くなるようにテーパ形状に形成されている。
【００１５】
図１０は、原料Ａをこの保持羽根４の谷間４Ｃで保持した状態を示す。図１１は、谷間４Ｃで砕石等の原料Ａを保持した状態の拡大図である。この図１１に示す谷間４Ｃの符号Ｘ，Ｙで示す個所では、原料Ａに大きな圧力が作用し、原料Ａを効率良く破砕、研磨することができる。すなわち、谷間４Ｃは底部１１に向けて徐々にその間隔を狭めるとともに回転方向に向けても狭まる形状であるため、谷間４Ｃに入り込んでくる原料Ａはその底部１１の個所と谷間４Ｃの出口側すなわち図８におけるＸ及びＹの個所において大きな圧力を受ける（圧密効果）。
【００１６】
図１２は、掻き上げ羽根３の一単位を示す斜視図である。この掻き上げ羽根３は、回転ドラム１の内周面方向において山部３１と谷部３２とが交互に形成され、山部３１の頂面に小谷部３３が形成されている。この掻き上げ羽根３の軸方向において所定間隔をおいて山部３１と略同一高さの仕切壁３４を内周面方向に沿って設けてある。この一単位の掻き上げ羽根３は、二列の山部３１の間に谷部３２を形成し、この谷部３２を仕切るように２つの仕切壁３４を設けてある。このような仕切壁３４を設けることにより、砕石等の原料Ａを谷部３２内で投入側から排出側に必要以上に速く移動してしまうのを防止し、一時仕切壁３４と山部３１とで囲まれた谷部３２のスペース内に滞留させ、この滞留個所において砕石等の原料Ａ同士が十分にぶつかり合って研磨、破砕が確実に行われるようにする。また、図１２において符号３５は取付け用の孔を示す。これら取付孔３５を介してこの一単位の掻き上げ羽根３を回転ドラム１の内周面に多数取付ける。このとき、軸方向において複数単位の山部３１と谷部３２とは、同一直線上に配列される。
【００１７】
また、この掻き上げ羽根３は、谷部３２の回転方向側の山部３１の壁３１Ａを急な傾斜に形成するとともに、反対側の壁３１Ｂを緩やかな傾斜に形成してある。なお、仕切壁３４は、一単位のものにひとつでもよいし、３以上あってもよい。
【００１８】
図１３は、掻き上げ羽根３の配列の一例を示し、投入側は、山部３１と谷部３２との軸線に対する傾斜方向が原料Ａを投入口６側から排出口側へ送る方向に傾斜（送り角度がつけられている）している。排出口側は、反対の傾斜すなわち止めないし戻し角度がつけられている。排出口側の掻き上げ羽根３の山部３１の傾斜角度は、軸線と平行であってもよい。
【００１９】
このような掻き上げ羽根３を用いることにより、谷部３２で砕石等の原料Ａを最適上方個所まで掻き上げることができるとともに、回転方向と反対側の壁３１Ｂの緩やかな傾斜により谷部３２内の原料Ａのスムースな新陳代謝が図れる。また、山部３１で原料Ａを研磨、破砕するのではなく、谷部３２と小谷部３３で保持した原料Ａの表面でロータ２側との間にある砕石等の原料Ａを研磨、破砕するので、山部３１の頂面の摩耗が著しく減り、長期間の使用にも耐え得るものとなる。また、小谷部３３と谷部３２とを形成することにより、原料Ａに及ぼす圧力が小谷部３３で大きく、谷部３２で小さくなり、これらの繰り返し並びにロータ２の偏心位置の配設により原料Ａへの圧縮力が変化して砕石等の原料Ａを十分に研磨、破砕することができる。
【００２０】
図１４は、原料Ａに及ぼされる圧力作用を矢印で示すものであり、十分な破砕、研磨がなされ、特に最後の背の高い山部４Ａ´を備えた保持羽根４と仕切壁３４を備えた掻き上げ羽根３との個所において丹念に処理されることとなる。
【００２１】
なお、図１に示す実施例において、第四列目の保持羽根４も背の低いもの（山部４Ａ）としたときと（例１）、図１の実施例（例２）との処理能力を比較した結果は、次の表１の通りであった。
【００２２】
【表１】

【００２３】
図１５に示す実施例は、保持羽根４を六列並べたものを示し、中央の二列の保持羽根４の山部４Ａは軸線に平行（すなわち角度なし）であり、これより投入口６側の二列の保持羽根４が送り角度を有し、排出口側の二列の保持羽根４は止め角度を有する。なお、この排出口側の保持羽根４は、周方向において隣合う山部４Ａ及び谷間４Ｃが同じ円周上にある。
【００２４】
図１６ないし図１８は、ロータ２の回転駆動手段を示す。すなわち、ロータ２の回転軸５をユニバーサルジョイント２０で出力軸２１に接続してあり、この出力軸２１には減速機２２を介してモータＭの出力が伝えられる。モータＭのＶプーリ２３と減速機２２のＶプーリ２４との間にはＶベルト２５がかけわたされている。チェーン方式でロータ２を回転させる方法に比較して、ユニバーサルジョイント２０を用いた場合、モータＭの回転力伝達のロスが大幅に低減し、しかも直結駆動方式となるので、小さなモータＭですむ（チェーン方式のモータは１３２ＫＷ、本方式のモータは９０ＫＷ）。また、ユニバーサルジョイント２０は、上下方向は常にフリーであるため、機械内部で原料が詰まりを発生した場合、上方へ逃げることが可能なため、ロータ２及びシャフトへの衝撃をユニバーサルジョイント２０が吸収しロータ２を保護することができる。また、ロータ２の回転ドラム１内の位置を変える場合は、駆動モータ台を移動する必要がなくセットが容易に行える。保持羽根４の消耗により原料Ａに圧力がかからなくなり、品質が低下した場合、セット位置を変えて品質を保つことが可能となる。従来機では、ロータセット位置を変えた場合、駆動モータ台を同寸法移動してチェーンの張り具合を確認する必要があり、大変時間がかかっていた。
【００２５】
【発明の効果】
以上説明したように、この発明によれば、保持羽根はロータの円周方向において山部と谷部とが交互に形成されるとともに、ロータの軸方向における山部が複数の谷間によって分断されて形成され、これら谷間は底部に向って徐々に狭くなるように形成されているので、この谷間に挟まった砕石等の原料は底部にいくに従って強い圧縮力を受け、砕石等の破砕、研磨がなされるとともに、軸方向に所定間隔をおいて複数の谷間が形成されるので、投入側から回転ドラム内に投入された原料がそれぞれの場所において十分な時間滞留され、必要十分な剪断作用や圧縮作用を受けて破砕研磨効率が向上する。また、保持羽根の円周方向の隣り合う山部間において、谷間の次には山部が位置し、山部の次には谷部が位置するように交互に配列することにより、所定の個所ごとに砕石等の原料の十分な滞留を図ることができ、より一層処理効率を向上させることができる。また、回転ドラムに取付けられた掻き上げ羽根は、回転ドラムの内周面方向において、山部と谷部とが交互に形成され、山部の頂面に小谷部が形成され、掻き上げ羽根の軸方向において所定間隔をおいて山部と略同一高さの仕切壁を内周面方向に沿って設けてあるので、砕石等の原料が投入側から排出側に向けて速く移動してしまうのをこれら仕切壁が阻止し、仕切壁間において砕石等の原料を十分な時間滞留させ、それぞれの個所において十分な破砕、研磨を行うことができる。このような装置によれば、投入口側から排出口側までの距離を短くすることも可能であり、装置全体のコンパクト化を図ることもできる。
【図面の簡単な説明】
【図１】この発明の好適な実施例を示す中央縦断面図。
【図２】図１の正面断面図。
【図３】背の低い山部を備えた保持羽根の一単位の斜視図。
【図４】図３のＡ−Ａ線断面図。
【図５】保持羽根の正面図。
【図６】保持羽根の背面図。
【図７】背の高い山部を備えた保持羽根の一単位の斜視図。
【図８】図７の断面図。
【図９】図７の平面図。
【図１０】保持羽根の谷間で原料を保持した状態を示す図。
【図１１】図１０の拡大図。
【図１２】掻き上げ羽根の斜視図。
【図１３】掻き上げ羽根の展開図。
【図１４】作用状態を示す正面断面図。
【図１５】他の例を示す保持羽根取付例。
【図１６】ロータの駆動手段を示す正面図。
【図１７】図１６の左側面図。
【図１８】ユニバーサルジョイントの個所の拡大図。
【符号の説明】
１回転ドラム
２ロータ
３掻き上げ羽根
４保持羽根
４Ａ，４Ａ´ 山部
４Ｂ，４Ｂ´ 谷部
４Ｃ，４Ｃ´ 谷間
１１底部[0001]
BACKGROUND OF THE INVENTION
The present invention is a rotary drum that is rotationally driven in one direction and has a scraper blade attached to the inner peripheral surface thereof, is eccentrically disposed inside the rotary drum, and is rotationally driven in a direction opposite to the rotary drum. And a rotor with wave-shaped holding blades in which crests and troughs are alternately arranged along the circumferential direction on the outer peripheral surface, and scrapes the crushed stones and the like thrown into the rotating drum. The present invention relates to a processing apparatus for crushed stone and the like that makes a rounded shape with the action of the holding blade.
[0002]
[Prior art]
As this type of conventional apparatus, the apparatus described in Japanese Utility Model Publication No. 56-46841 is known. The basic principle of both the conventional example and the present invention is that the rotating drum is driven to rotate in one direction, and is eccentrically disposed inside the rotating drum, and is driven to rotate faster in the opposite direction to the rotating drum. A rotor, a plurality of scraping blades attached to the inner peripheral surface of the rotating drum, and a plurality of holding blades attached to the outer peripheral surface of the rotor, the inner peripheral surface of the rotating drum and the outer periphery of the rotor In the present invention, the crushed stone and the like are processed by the scraping blades and the holding blades that travel in opposite directions in a space of about a quarter in the rotating drum including the portion having the shortest distance from the surface. In the conventional example, the top surface of the peak portion of the holding blade is formed into a smooth surface, a gently sloping wall is formed from the top surface of the front peak portion to the valley portion with respect to the rotation direction, By forming a straight wall along the line that intersects the valley surface almost at right angles to the top surface of the rear peak, the degree of collision and rubbing between crushed stones and the like is increased, and even more The processing capacity was improved.
[0003]
[Problems to be solved by the invention]
In the conventional example, the crushing and polishing functions have been improved, but it has been necessary to increase the distance from the raw material input side to the discharge port for discharging the processed material. This is because sufficient crushing and polishing can be expected in the rotational direction, but in the axial direction (the direction from the inlet to the outlet), raw materials such as crushed stones are retained for a predetermined time at a predetermined location. Because it was not done.
[0004]
Accordingly, an object of the present invention is to provide a processing apparatus for crushed stones and the like that can crush and polish crushed stones and the like for a sufficient period of time in the axial direction as well as in the rotational direction, and can reduce the size of the apparatus.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention relates to a rotating drum that is rotationally driven in one direction, and is eccentrically disposed inside the rotating drum and is driven to rotate faster in the opposite direction to the rotating drum. A rotor, a plurality of scraping blades attached to the inner peripheral surface of the rotating drum, and a plurality of holding blades attached to the outer peripheral surface of the rotor; an inner peripheral surface of the rotating drum and an outer peripheral surface of the rotor; The crushed stone or the like is processed by the scraping blades and the holding blades that travel in opposite directions in a space of about a quarter in the rotating drum including the shortest distance, and the holding blades are arranged around the circumference of the rotor. Crests and valleys are alternately formed in the direction, and crests in the axial direction of the rotor are divided by a plurality of valleys, and these valleys are formed so as to gradually narrow toward the bottom. In the crushed stone processing apparatus, the peak portion of the holding blade on the rotor end side located on the discharge port side is formed higher than the peak portion of the other holding blade, and the axial direction of the rotor of the peak portion of the high holding blade Each row along the axis is formed so as to be inclined with respect to the axis of the rotor in the direction of pushing back the raw material sent from the inlet, and in the axial direction of the rotor of the low peak portion located on the inlet side of the holding blade. Each row along the ridge is formed to be inclined with respect to the axis of the rotor so that the raw material charged from the charging port can be sent to the discharging port, and is adjacent to each other in the circumferential direction of the holding blade having the low peak portion. The crests and the valleys are arranged so as to alternately exist between the parts, and both walls of the troughs of the holding blades are formed so as to gradually narrow the interval in the rotation direction of the rotor, Against the axis of the peak and valley Oblique direction is inclined in a direction to send to the discharge port side feed from inlet, those that bear the opposite inclination to the scraping up the blade of the discharge port side.
Further, the raw material processing space between the peak portion of the holding blade on the discharge port side and the inner peripheral surface of the rotating drum is formed narrower than the raw material processing space between the lower peak portion and the inner peripheral surface of the rotating drum. .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings.
[0007]
In the embodiment shown in FIG. 1, a rotary drum 1 that is rotationally driven in one direction, and a rotor that is eccentrically arranged inside the rotary drum 1 and that is rotationally driven in the opposite direction to the rotary drum 1 and faster. 2, a plurality of scraping blades 3 attached to the inner peripheral surface of the rotating drum 1, and a plurality of holding blades 4 attached to the outer peripheral surface of the rotor 2, and the inner peripheral surface of the rotating drum 1 and the rotor 2. In the space of about one-fourth in the rotary drum 1 including the portion with the shortest distance from the outer peripheral surface, the raw material such as crushed stone and the holding blade 4 are used to shear and act together with the scraping blade 3 and the holding blade 4. Processing is performed by action or the like. The rotor 2 is attached to a rotary shaft 5, and the right side of the rotary drum 1 in the drawing (FIG. 1) is a raw material inlet 6 such as crushed stone. The left side of the rotary drum 1 in the drawing is a discharge port for processed crushed stones and the like. The holding blades 4 are provided in four rows in the axial direction in FIG. 1, and the peak portion 4A 'of the last row of holding blades 4 (discharge port side) is formed higher than the other three rows of peak portions 4A. The raw material processing space between the high peak 4A ′ and the inner peripheral surface of the rotary drum 1 is narrower than the raw material processing space of the other peak 4A. In the holding blade 4, crests 4 A and 4 A ′ and troughs 4 B and 4 B ′ are alternately formed in the circumferential direction of the rotor 2. The ridge 4A ′ is provided at a position located on the final stage side of the processing of crushed stone, that is, the discharge port side. The ridge portion 4A is lower in height than the ridge portion 4A ′, and extends over three rows from the raw material input port 6 side. It is provided. Further, the

crests

4A and 4A ′ in the axial direction of the rotor 2 are formed by being divided by a plurality of

valleys

4C and 4C ′. And these

valleys

4C and 4C 'are formed so that it may become narrow gradually toward the bottom. Further, both walls 10 of the

valleys

4C and 4C ′ are formed so as to gradually narrow the interval in the rotational direction of the rotor 2, as will be described later. That is, the entrance in the direction in which crushed stone or the like is sent is wide and the exit is narrow. In FIG. Since the ridge 4A 'is taller than the ridge 4A, the raw material introduced from the inlet 6 is forcibly consolidated by the step between the ridge 4A' and the ridge 4A, so that the quality of the product is further improved. Can be produced.
[0008]
FIG. 2 is a longitudinal cross-sectional view of the portion of the holding blade 4 having the low peak 4A in FIG. 1, and the mutual positional relationship between the rotating drum 1 and the rotor 2 and the mutual position between the scraping blade 3 and the holding blade 4. Show the relationship.
[0009]
FIG. 3 shows a perspective view of one unit of the holding blade 4 having a low peak 4A. The top surface 4D of the peak portion 4A is formed into a smooth surface, and a gently inclined wall 4E is formed from the top surface of the front peak portion 4A to the valley portion 4B with respect to the rotation direction, and the rear portion from the valley portion 4B. A straight wall 4F is formed along a line that intersects the surface of the valley 4B substantially at a right angle toward the top surface 4D of the peak 4A. The valley 4B is partitioned by ribs 40 formed at a height up to the valley 4C in the axial direction.
[0010]
FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, and an attachment hole 41 for attaching the holding blade 4 to the rotor 2 is provided in the trough 4B.
[0011]
FIG. 5 is a front view of one unit of the holding blade 4, and FIG. 6 is a rear view thereof. From these two drawings, the shape of the valley 4C formed between the peaks 4A provided at predetermined intervals along the axial direction becomes clear. That is, the valley 4 C has a tapered shape in which both walls 10 gradually narrow toward the bottom portion 11. Further, as described above, both walls 10 are formed in a tapered shape in which the interval gradually decreases in the rotational direction (see FIG. 5). That is, in FIG. 5, the valley 4 C has a tapered shape not only in the vertical direction but also in the direction penetrating the paper surface from the front of the drawing. As shown in FIG. 3, this holding blade 4 has one unit, and two ridges 4A are provided, with four ridges 4A in one row and three ridges 4A in the other row. And the other peak 4A is closed in the circumferential direction in one valley 4C. This is because when the rotor 2 rotates, the raw material A such as crushed stone that has passed after being sandwiched between the front valleys 4C in the rotation direction collides with the straight wall 4F of the other peak 4A, and the raw material A This is so that a sufficient pressure can be applied.
[0012]
FIG. 7 shows a perspective view of the holding blade 4 with the high peak 4A ′. In this holding blade 4, the adjacent mountain portions 4 A ′ and valleys 4 C ′ are present on the same circumference in the circumferential direction. That is, like the holding blade 4 having the low peak portion 4A, the peak portions 4A and the valleys 4C are not alternately arranged on the same circumference.
[0013]
FIG. 8 is a cross section cut along a valley 4C ′ adjacent in the circumferential direction in FIG. 7, and similarly to the holding blade 4 provided with a short peak 4A, a top surface 4D ′, an inclined wall 4E ′, It has a straight wall 4F 'and also has a rib 40' and a mounting hole 41 '.
[0014]
FIG. 9 shows a plan view of the holding blade 4 provided with a tall peak 4A ′. The valley 4C ′ of the holding blade 4 is also formed in a tapered shape so that the interval is gradually narrowed in the rotating direction and is also narrowed toward the bottom 11 ′.
[0015]
FIG. 10 shows a state in which the raw material A is held in the valley 4 C of the holding blade 4. FIG. 11 is an enlarged view of a state in which the raw material A such as crushed stone is held in the valley 4C. A large pressure acts on the raw material A at the locations indicated by the symbols X and Y of the valley 4C shown in FIG. 11, and the raw material A can be efficiently crushed and polished. That is, since the valley 4C has a shape that gradually narrows the gap toward the bottom 11 and also narrows in the rotational direction, the raw material A entering the valley 4C is located at the bottom 11 and the outlet side of the valley 4C, that is, A large pressure is received at X and Y in FIG. 8 (consolidation effect).
[0016]
FIG. 12 is a perspective view showing one unit of the scraping blade 3. In the scraping blade 3, crests 31 and troughs 32 are alternately formed in the inner peripheral surface direction of the rotary drum 1, and a small trough 33 is formed on the top surface of the crest 31. A partition wall 34 having substantially the same height as the mountain portion 31 is provided along the inner peripheral surface direction at a predetermined interval in the axial direction of the scraping blade 3. This one unit scraping blade 3 forms a trough 32 between two rows of crests 31, and two partition walls 34 are provided so as to partition the trough 32. By providing such a partition wall 34, it is possible to prevent the raw material A such as crushed stone from moving from the input side to the discharge side faster than necessary in the valley portion 32, and the temporary partition wall 34 and the mountain portion 31. It is made to stay in the space of the valley part 32 enclosed by, and raw materials A, such as a crushed stone, collide sufficiently in this staying part, and it grind | polishes and crushes reliably. In FIG. 12, reference numeral 35 denotes a mounting hole. A large number of the unit-up scraping blades 3 are attached to the inner peripheral surface of the rotary drum 1 through the attachment holes 35. At this time, the plurality of ridges 31 and valleys 32 in the axial direction are arranged on the same straight line.
[0017]
Further, the scraping blade 3 is formed such that the wall 31A of the peak portion 31 on the rotational direction side of the valley portion 32 has a steep slope, and the opposite wall 31B has a gentle slope. One partition wall 34 may be provided for each unit, or three or more partition walls 34 may be provided.
[0018]
FIG. 13 shows an example of the arrangement of the scraping blades 3, and on the input side, the inclination direction with respect to the axis line of the peak portion 31 and the valley portion 32 is inclined in a direction in which the raw material A is sent from the input port 6 side to the discharge port side ( The feed angle is set. The outlet side is provided with an opposite inclination or stop or return angle. The inclination angle of the crest 31 of the scraping blade 3 on the discharge port side may be parallel to the axis.
[0019]
By using such a scraping blade 3, the raw material A such as crushed stone can be scraped up to the optimum upper portion in the valley portion 32, and the inside of the valley portion 32 is caused by the gentle inclination of the wall 31 B opposite to the rotation direction. Smooth metabolism of raw material A can be achieved. In addition, the raw material A is not ground and crushed by the crest 31, but the raw material A such as crushed stone between the rotor 2 and the surface of the raw material A held by the valley 32 and the small valley 33 is ground and crushed. Therefore, the wear on the top surface of the peak portion 31 is remarkably reduced and it can withstand long-term use. Further, by forming the valley portion 33 and the valley portion 32, the pressure exerted on the raw material A is large at the small valley portion 33 and is small at the valley portion 32. By repeating these and arranging the eccentric position of the rotor 2, the raw material A Thus, the raw material A such as crushed stone can be sufficiently polished and crushed.
[0020]
FIG. 14 shows the action of pressure exerted on the raw material A by an arrow, which is sufficiently crushed and polished, and particularly includes the holding blade 4 and the partition wall 34 having the last tall peak 4A ′. It will be carefully processed at the point with the scraping blade 3.
[0021]
In the embodiment shown in FIG. 1, when the fourth row of retaining blades 4 is also short (peak portion 4A) (Example 1), the processing capability of the embodiment (Example 2) of FIG. The results of the comparison were as shown in Table 1 below.
[0022]
[Table 1]

[0023]
The embodiment shown in FIG. 15 shows an arrangement in which six rows of holding blades 4 are arranged, and the peak portions 4A of the two holding blades 4 in the center are parallel to the axis (that is, there is no angle). The two rows of holding blades 4 have a feed angle, and the two rows of holding blades 4 on the outlet side have a stop angle. In addition, as for this holding blade 4 by the side of a discharge port, the peak part 4A and valley 4C which adjoin in the circumferential direction exist on the same periphery.
[0024]
16 to 18 show the rotation driving means of the rotor 2. That is, the rotating shaft 5 of the rotor 2 is connected to the output shaft 21 by the universal joint 20, and the output of the motor M is transmitted to the output shaft 21 via the speed reducer 22. A V belt 25 is stretched between the V pulley 23 of the motor M and the V pulley 24 of the speed reducer 22. Compared with the method of rotating the rotor 2 by the chain method, when the universal joint 20 is used, the loss of rotational force transmission of the motor M is greatly reduced and the direct drive method is used, so a small motor M is required ( (Chain type motor is 132KW, this type motor is 90KW). Moreover, since the universal joint 20 is always free in the vertical direction, if the material is clogged inside the machine, it can escape upward, so the universal joint 20 absorbs the impact on the rotor 2 and the shaft. The rotor 2 can be protected. Further, when the position of the rotor 2 in the rotary drum 1 is changed, it is not necessary to move the drive motor base and the setting can be easily performed. When the pressure is not applied to the raw material A due to the consumption of the holding blades 4 and the quality is deteriorated, the quality can be maintained by changing the set position. In the conventional machine, when the rotor set position is changed, it is necessary to move the drive motor base by the same dimension and check the tension of the chain, which is very time consuming.
[0025]
【The invention's effect】
As described above, according to the present invention, the holding blades are alternately formed with crests and troughs in the circumferential direction of the rotor, and crests in the axial direction of the rotor are divided by a plurality of valleys. Since these valleys are formed so as to gradually narrow toward the bottom, the raw materials such as crushed stones sandwiched between these valleys receive a strong compressive force as they go to the bottom, and the crushed stones are crushed and polished. In addition, since a plurality of valleys are formed at predetermined intervals in the axial direction, the raw material charged into the rotating drum from the charging side is retained for a sufficient time in each place, and necessary and sufficient shearing action and compression action As a result, crushing and polishing efficiency is improved. In addition, between the adjacent ridges in the circumferential direction of the holding blades, the ridges are located next to the valleys, and the valleys are located next to the ridges. Every time, raw materials such as crushed stone can be sufficiently retained, and the processing efficiency can be further improved. Further, the scraping blades attached to the rotating drum are alternately formed with ridges and valleys in the direction of the inner peripheral surface of the rotating drum, and are formed with small valleys on the top surface of the ridges. Since a partition wall having substantially the same height as the mountain portion is provided along the inner circumferential surface direction with a predetermined interval in the axial direction, raw materials such as crushed stone move quickly from the input side to the discharge side. These partition walls prevent the raw materials such as crushed stones from remaining between the partition walls for a sufficient period of time, and sufficient crushing and polishing can be performed at each location. According to such an apparatus, the distance from the inlet side to the outlet side can be shortened, and the entire apparatus can be made compact.
[Brief description of the drawings]
FIG. 1 is a central longitudinal sectional view showing a preferred embodiment of the present invention.
FIG. 2 is a front sectional view of FIG.
FIG. 3 is a perspective view of one unit of a holding blade having a short peak portion.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a front view of a holding blade.
FIG. 6 is a rear view of a holding blade.
FIG. 7 is a perspective view of one unit of a holding blade provided with a tall peak portion.
8 is a cross-sectional view of FIG.
9 is a plan view of FIG. 7. FIG.
FIG. 10 is a view showing a state in which a raw material is held in a valley between holding blades.
11 is an enlarged view of FIG.
FIG. 12 is a perspective view of a scraping blade.
FIG. 13 is a development view of a scraping blade.
FIG. 14 is a front sectional view showing an operation state.
FIG. 15 shows a holding blade attachment example showing another example.
FIG. 16 is a front view showing rotor driving means.
FIG. 17 is a left side view of FIG.
FIG. 18 is an enlarged view of a universal joint.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotating drum 2 Rotor 3 Scooping blade 4

Holding blade

4A, 4A 'Mountain part 4B, 4B'

Valley part

4C, 4C 'Valley 11 Bottom part

Claims

A rotating drum that is rotationally driven in one direction, a rotor that is eccentrically arranged inside the rotating drum and that is rotationally driven in a direction opposite to the rotating drum and faster, and is attached to the inner peripheral surface of the rotating drum A plurality of scooping blades and a plurality of holding blades attached to the outer peripheral surface of the rotor, and the inner surface of the rotating drum and the outer peripheral surface of the rotor include a portion having the shortest distance in the rotating drum. The crushing stones and the like are processed by the scraping blades and the holding blades that travel in opposite directions in a quarter space, and the holding blades are alternately formed with peaks and valleys in the circumferential direction of the rotor. In addition, in the crushed stone processing apparatus formed such that the peaks in the axial direction of the rotor are divided by a plurality of valleys, and these valleys are gradually narrowed toward the bottom,
The peak portion of the holding blade on the rotor end side located on the discharge port side is formed higher than the peak portion of the other holding blade,
Each row along the axial direction of the rotor of the high peak portion of the holding blade is formed so as to be inclined with respect to the axial line of the rotor in the direction of pushing back the raw material sent from the charging port,
Each row along the axial direction of the low peak rotor positioned on the inlet side of the holding blade is inclined with respect to the axis of the rotor so that the raw material charged from the inlet can be fed toward the outlet. Formed,
Between the ridges adjacent in the circumferential direction of the holding blades having the low ridges, the ridges and valleys are arranged to exist alternately,
Both walls of the valley portion of the holding blade are formed so as to gradually narrow the interval toward the rotation direction of the rotor,
The direction of the inclination of the crest and trough axis of the scraper blade on the inlet side is inclined in the direction of feeding the raw material from the inlet to the outlet side, and the scraper blade on the outlet side has an opposite inclination. The crushed stone processing apparatus characterized by being made.

The raw material processing space between the peak portion of the holding blade on the discharge port side and the inner peripheral surface of the rotating drum is formed narrower than the raw material processing space between the lower peak portion and the inner peripheral surface of the rotating drum. The crushed stone processing apparatus according to claim 1.