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EP1353754B1 - Beating arrangement - Google Patents

Beating arrangement Download PDF

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Publication number
EP1353754B1
EP1353754B1 EP02715400A EP02715400A EP1353754B1 EP 1353754 B1 EP1353754 B1 EP 1353754B1 EP 02715400 A EP02715400 A EP 02715400A EP 02715400 A EP02715400 A EP 02715400A EP 1353754 B1 EP1353754 B1 EP 1353754B1
Authority
EP
European Patent Office
Prior art keywords
cutting
base
flail
cutting body
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02715400A
Other languages
German (de)
French (fr)
Other versions
EP1353754A1 (en
Inventor
Werner Doppstadt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Werner Doppstadt Umwelttechnik & Co KG GmbH
Original Assignee
Werner Doppstadt Umwelttechnik & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Werner Doppstadt Umwelttechnik & Co KG GmbH filed Critical Werner Doppstadt Umwelttechnik & Co KG GmbH
Priority to SI200230155T priority Critical patent/SI1353754T1/en
Priority to DK02715400T priority patent/DK1353754T3/en
Publication of EP1353754A1 publication Critical patent/EP1353754A1/en
Application granted granted Critical
Publication of EP1353754B1 publication Critical patent/EP1353754B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof

Definitions

  • the invention relates to a flail assembly for rotary shredders with a to a Axis rotatably mounted body and a cutting body, which on a Projection of the body is releasably attached.
  • flails are called Impact tool for shredders, for example, for plastic, wood or the like used.
  • a flail assembly in which a tooth trained cutting body with a shaft interchangeable in a recess is attached.
  • the attachment takes place by means of a screw, which through a bore in the Base body and protrudes through the shaft of the cutter body.
  • the shaft is at the end with a projecting corner which engages behind a projection in the recess.
  • the shaft is provided with a profile which is in a complementary profile in the recess protrudes.
  • the device includes a rotor body, near it Scope Schlegel are arranged pivotally.
  • Each mallet consists of one Base body which is pivotally mounted on one end of the rotor body and out a cutting body, which at the front surface in the circumferential direction of the Schlegelels is appropriate.
  • These cutting bodies are interchangeable with the respective flail fastened since they are subject to rapid wear during operation of the device and can thus be replaced without replacement of the entire Schlegel would be required.
  • a flail assembly with an easily replaceable To provide cutting body in which as little material is consumed. It is Another object of the invention to provide a flail assembly which is simple is to produce. It is also an object of the invention to provide a flail assembly good power to create the body.
  • the objects are achieved by a Schlegelanssen according to the features of Claim 1 solved.
  • This will ensure optimal power transmission achieved by positive engagement.
  • the material to be crushed usually exerts strong forces in different directions on the cutting body and over the cutting body also on the main body of the flail arrangement.
  • Positive locking can not only forces perpendicular to the direction of movement of the Cutting body, but also all other forces acting on the cutting material on the Schlegel be included. There is no excessive burden on Fasteners such as screws or the like.
  • the profile on the base body corresponds to a profile on the cutting body, for example a Recess.
  • the cutting body has less volume with accordingly lower material consumption.
  • the profile has the shape of a projecting truncated pyramid whose base in the plane of the front Surface of the projection is located. This shape is easy to manufacture and reduces Material consumption in a suitable manner. By the number of pages of the The truncated pyramid determines the number of positions in which the Cutting body can be attached. This eliminates an adjustment situation of the Cutting edge.
  • the cutting body has two cutting edges mirror-symmetrical to one Surface on, which runs tangentially to a rotation extent. But there can be more Cutting edges be provided. For a four-sided truncated pyramid are also four Cutting edges possible. If the truncated pyramid has more sides, so can the Number of cutting edges are increased accordingly. By this configuration can the cutting body can be used several times. The cutting body must after wear only detached and rotated by an angle given by the geometry and be fastened again. This will reduce material usage and time spent lowered further.
  • the cutting body by means of a Bolt, which runs centrally through the cutting body and through the profile, bolted. But it is also any other type of attachment conceivable, especially since the lateral Forces are no longer absorbed by the screw but by the profile.
  • the Base body preferably has at the rear in the circumferential direction of the surface Projection on a recess in which a nut for the screw is retractable. This reduces stress and damage to the nut. In addition, will shortens the required screw length.
  • the cutting body on the in Circumferential direction front surface have a recess in which the screw head the screw is at least partially retractable. This will be a lesser Load and damage the screw head causes.
  • the axis of rotation away from the axis of the surface Cutting body preferably bevelled. This aligns with the beveled achsfemen surface of the body when the cutting body to the body is attached. As a result, the wear of the body is minimized.
  • the cutting edge of the cutting body is preferably hardened for a long time To ensure lifetime.
  • 10 denotes a rotor blade.
  • the rotor blade 10 includes a Base 12 and a screwed with a screw 14 cutting body 16, the forming the flail tip.
  • the main body 12 consists of a hollow cylinder 18, the order an axle 20 is rotatably mounted.
  • a projection 22 is formed on the hollow cylinder.
  • the projection 22 is formed substantially step-shaped, wherein the "stage” a Surface 24, on which the cutting body 16 rests.
  • the area 24 shows in Direction of the rotational movement, which is represented by an arrow 26 in Figure 1. she thus forms the front surface of the base body 12.
  • the cutting body 16 is located positively on the base body 12.
  • the step-shaped arrangement is the cutting body 16 surrounded by two sides of the body 12 and forms with him a unit in which no cutting material can penetrate.
  • the cutting body 16 has a uniform over its entire width trapezoidal cross section.
  • the smaller parallel surface of the trapezoid forms the rear side of the cutting body 16, which on the front surface 24 of the Base 12 rests.
  • the front part 28 of the cutting body 16 is hardened. This delays the wear of the cutting surfaces.
  • the cutting body can also of two parts, a hardened front part and a non-hardened back part, which are interconnected exist.
  • the front part 28 of the cutting body comprises two cutting edges 30 and 32, the on opposite sides of the cutter body are arranged parallel to each other. In other embodiments are four cutting edges on each side of the Cutting body arranged at an angle of about 90 degrees to each other.
  • the Cutting edges 30 and 32 project slightly forward. Accordingly, the runs Surface 34 and 36 at an angle slightly obliquely to the edges. Thereby an optimal cutting effect is achieved.
  • the middle part 38 of the front surface extends between the cutting edges 30 and 32 straight, i. parallel to the rear surface of the cutter body. The sharp angle the trapezium in cross-section is slightly blunted at its end 40 and 42. This is in 3 again shown.
  • the rear surface of the base body 12, and its achsfeme surface 44th are not exactly exactly. As a result, the resistance to the material to be cut is something lower.
  • the off-axis surface 44 extends such that they are free of edges on the Side surface 46 of the cutter body 16 connects.
  • the base body 12 is shown without cutting body.
  • a bore 52 for the screw 14 is provided in the truncated pyramid 50.
  • the sides 54 are at an angle of 90 degrees to each other and two sides have edges which are parallel to the cutting edges 30, 32 (Fig.3).
  • the cutting body 16 has on its rear side a recess which is complementary to the profile 50.
  • the cutting body 16 only screwed in four different layers to the base body or otherwise on it be attached. An adjustment is not required.
  • the Cutting body 16 each placed so that one of the two cutting edges 30, 32nd runs parallel to the axis of rotation 20 of the Schlegelels. Is the cutting edge through Wear has become dull, the screw 14 is released, the cutting body by 180 Degree turned and fastened with the screw 14 again. Then there is a "fresh" Cutting edge in place of the previous one. Be cutting edges on each side of the Cutting body 16 provided so the cutting body can be used four times instead of twice become. If more cutting edges are to be provided, the number the sides of the truncated pyramid 50 are increased.
  • a recess 60 is provided on the rear side of the base body 12.
  • the screw 14 protrudes through a bore 62 in the cutting body 16 and the bore 52 in the main body.
  • a matching nut 64 for the screw 14th is provided in the recess 60.
  • the holes 52 and 62 do not need to be threaded be provided, which of course is also possible. Due to the protected location of Screw head and nut these are not or only slightly by the cut material impaired.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Steroid Compounds (AREA)
  • Glass Compositions (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Harvester Elements (AREA)
  • Lock And Its Accessories (AREA)
  • Disintegrating Or Milling (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Dental Preparations (AREA)
  • Fats And Perfumes (AREA)
  • Seal Device For Vehicle (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention relates to a beating arrangement for a rotary shredder, comprising a base body (12) which is rotationally arranged around an axis (20) and a cutting body (16) which is detachably fixed onto a protruding part (22) of the base body. A protruding profile (50) is formed on the front surface thereof in the direction of rotation whereon the cutting body (16) forms a positive fit. The profile (50) can be embodied in the form of a protruding truncated pyramid, whose base surface lies on the plane of cutting edges (30, 32) which are bilaterally symmetrical in relation to a surface which extends tangentially in relation to a circumference of rotation. The cutting body can be fixed by means of a screw (14), which extends through the centre of the cutting body and the profile.

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Schlegelanordnung für Rotorschredder mit einem um eine Achse drehbar gelagerten Grundkörper und einem Schneidkörper, der an einem Vorsprung des Grundkörpers lösbar befestigt ist. Solche Schlegel werden als Schlagwerkzeug bei Rotorschreddern zum Beispiel für Kunststoff, Holz oder dergleichen verwendet.The invention relates to a flail assembly for rotary shredders with a to a Axis rotatably mounted body and a cutting body, which on a Projection of the body is releasably attached. Such flails are called Impact tool for shredders, for example, for plastic, wood or the like used.

Stand der TechnikState of the art

Aus der DE 35 45 708 C2 ist eine Schlegelanordnung bekannt, bei der ein als Zahn ausgebildeter Schneidkörper mit einem Schaft in einer Ausnehmung auswechselbar befestigt ist. Die Befestigung erfolgt mittels einer Schraube, die durch eine Bohrung im Grundkörper und durch den Schaft des Schneidkörpers ragt. Der Schaft ist am Ende mit einer vorstehenden Ecke versehen, die hinter einen Vorsprung in der Ausnehmung greift. Weiterhin ist der Schaft mit einem Profil versehen, das in ein komplementäres Profil in der Ausnehmung ragt. Dadurch wird der Zahn auch bei starken Kräften in seiner Lage gehalten. Üblicherweise wird dabei die Schlegelspitze so abgenutzt, daß sich eine Kante entlang der Drehbewegung des Schlegels bildet. Durch die komplexe Formgebung der beschriebenen Schlegelanordnung ist sie aufwendig herzustellen.From DE 35 45 708 C2, a flail assembly is known in which a tooth trained cutting body with a shaft interchangeable in a recess is attached. The attachment takes place by means of a screw, which through a bore in the Base body and protrudes through the shaft of the cutter body. The shaft is at the end with a projecting corner which engages behind a projection in the recess. Furthermore, the shaft is provided with a profile which is in a complementary profile in the recess protrudes. As a result, the tooth is in its position even with strong forces held. Usually, the flail tip is worn down so that an edge forms along the rotational movement of the flail. Due to the complex shape of the described Schlegelanordnung it is expensive to produce.

Aus der DE-OS 29 43 456 ist eine Vorrichtung zum Zerkleinern von Rinden und Einjahrespflanzen bekannt. Die Vorrichtung enthält einen Rotorkörper, nahe dessen Umfang Schlegel schwenkbar angeordnet sind. Jeder Schlegel besteht aus einem Grundkörper, der an einem Ende schwenkbar an dem Rotorkörper gelagert ist und aus einem Schneidkörper, der an der in Umlaufrichtung vorderen Fläche des Schlegels angebracht ist. Diese Schneidkörper sind austauschbar an dem jeweiligen Schlegel befestigt, da sie im Betrieb der Vorrichtung schnellem Verschleiß unterworfen sind und somit ersetzt werden können, ohne daß dafür ein Austausch des gesamten Schlegels erforderlich wäre.From DE-OS 29 43 456 a device for crushing barks and Annual plants known. The device includes a rotor body, near it Scope Schlegel are arranged pivotally. Each mallet consists of one Base body which is pivotally mounted on one end of the rotor body and out a cutting body, which at the front surface in the circumferential direction of the Schlegelels is appropriate. These cutting bodies are interchangeable with the respective flail fastened since they are subject to rapid wear during operation of the device and can thus be replaced without replacement of the entire Schlegel would be required.

Bei beiden Anordnungen wird vergleichsweise viel Material, nämlich der gesamte Schneidkörper, unbrauchbar, wenn die Schlegelspitze ausgetauscht wird.In both arrangements comparatively much material, namely the entire Cutting body, unusable when the flail tip is replaced.

Aus der US-A-5 285 974 ist ein weiterer Schlegel für Rotorschreder gemäß dem Oberbegriff des Anspruch 1 bekannt.From US-A-5 285 974 is another flail for shredders according to the preamble of claim 1.

Offenbarung der ErfindungDisclosure of the invention

Es ist Aufgabe der Erfindung eine Schlegelanordnung mit einem leicht austauschbaren Schneidkörper zu schaffen, bei welcher möglichst wenig Material verbraucht wird. Es ist weiterhin Aufgabe der Erfindung, eine Schlegelanordnung zu schaffen, welche einfach herzustellen ist. Es ist außerdem Aufgabe der Erfindung, eine Schlegelanordnung mit guter Kraftübertragung auf den Grundkörper zu schaffen.It is an object of the invention, a flail assembly with an easily replaceable To provide cutting body in which as little material is consumed. It is Another object of the invention to provide a flail assembly which is simple is to produce. It is also an object of the invention to provide a flail assembly good power to create the body.

Erfindungsgemäß werden die Aufgaben durch eine Schlegelanordnung nach den Merkmalen des Anspruchs 1 gelöst. Dadurch wird eine optimale Kraftübertragung durch Formschluß erreicht. Das zu zerkleinernde Gut übt üblicherweise starke Kräfte in verschiedenen Richtungen auf den Schneidkörper und über den Schneidkörper auch auf den Grundkörper der Schlegelanordnung aus. Durch die Kraftübertragung durch Formschluß können nicht nur Kräfte senkrecht zur Bewegungsrichtung des Schneidkörpers, sondern auch alle anderen wirkenden Kräfte des Schneidgutes auf den Schlegel aufgenommen werden. Es erfolgt keine übermäßige Belastung der Befestigungselemente wie Schrauben oder dergleichen. According to the invention, the objects are achieved by a Schlegelanordnung according to the features of Claim 1 solved. This will ensure optimal power transmission achieved by positive engagement. The material to be crushed usually exerts strong forces in different directions on the cutting body and over the cutting body also on the main body of the flail arrangement. Through the power transmission through Positive locking can not only forces perpendicular to the direction of movement of the Cutting body, but also all other forces acting on the cutting material on the Schlegel be included. There is no excessive burden on Fasteners such as screws or the like.

Dem Profil am Grundkörper entspricht ein Profil am Schneidkörper, zum Beispiel eine Ausnehmung. Dadurch hat der Schneidkörper weniger Volumen mit entsprechend geringerem Materialverbrauch.The profile on the base body corresponds to a profile on the cutting body, for example a Recess. As a result, the cutting body has less volume with accordingly lower material consumption.

In einer bevorzugen Ausgestaltung der Erfindung hat das Profil die Form eines hervorstehenden Pyramidenstumpfes, dessen Grundfläche in der Ebene der vorderen Fläche des Vorsprungs liegt. Diese Form ist einfach bei der Herstellung und reduziert den Materialverbrauch in geeigneter Weise. Durch die Anzahl der Seiten des Pyramidenstumpfs wird die Anzahl der Positionen festgelegt, in welchen der Schneidkörper befestigt werden kann. Dadurch erübrigt sich eine Justage Lage der Schneidkante.In a preferred embodiment of the invention, the profile has the shape of a projecting truncated pyramid whose base in the plane of the front Surface of the projection is located. This shape is easy to manufacture and reduces Material consumption in a suitable manner. By the number of pages of the The truncated pyramid determines the number of positions in which the Cutting body can be attached. This eliminates an adjustment situation of the Cutting edge.

Vorzugsweise weist der Schneidkörper zwei Schneidkanten spiegelsymetrisch zu einer Fläche auf, die tangential zu einem Rotationsumfang verläuft. Es können aber auch mehr Schneidkanten vorgesehen sein. Für einen vierseitigen Pyramidenstumpf sind auch vier Schneidkanten möglich. Weist der Pyramidenstumpf mehr Seiten auf, so kann auch die Anzahl der Schneidkanten entsprechend erhöht werden. Durch diese Ausgestaltung kann der Schneidkörper mehrfach verwendet werden. Der Schneidkörper muß nach Abnutzung lediglich losgelöst und um einen durch die Geometrie vorgegebenen Winkel gedreht und wieder befestigt werden. Dadurch werden Materialverbrauch und aufgewendete Zeit weiter gesenkt.Preferably, the cutting body has two cutting edges mirror-symmetrical to one Surface on, which runs tangentially to a rotation extent. But there can be more Cutting edges be provided. For a four-sided truncated pyramid are also four Cutting edges possible. If the truncated pyramid has more sides, so can the Number of cutting edges are increased accordingly. By this configuration can the cutting body can be used several times. The cutting body must after wear only detached and rotated by an angle given by the geometry and be fastened again. This will reduce material usage and time spent lowered further.

In einer weiteren Ausgestaltung der Erfindung wird der Schneidkörper mittels einer Schraube, die mittig durch den Schneidkörper und durch das Profil verläuft, verschraubt. Es ist aber auch jede andere Befestigungsart denkbar, da insbesondere die seitlichen Kräfte nicht mehr von der Schraube sondern vom Profil aufgenommen werden. Der Grundkörper weist bevorzugt an der in Umlaufrichtung rückwärtigen Fläche des Vorsprungs eine Aussparung auf, in der eine Mutter für die Schraube versenkbar ist. Dadurch wird die Belastung und Beschädigung der Mutter vermindert. Außerdem wird die benötigte Schraubenlänge verkürzt. Weiterhin kann der Schneidkörper an der in Umlaufrichtung vorderen Fläche eine Aussparung aufweisen, in der der Schraubenkopf der Schraube wenigstens teilweise versenkbar ist. Hierdurch wird eine geringere Belastung und Beschädigung des Schraubenkopfes bewirkt.In a further embodiment of the invention, the cutting body by means of a Bolt, which runs centrally through the cutting body and through the profile, bolted. But it is also any other type of attachment conceivable, especially since the lateral Forces are no longer absorbed by the screw but by the profile. Of the Base body preferably has at the rear in the circumferential direction of the surface Projection on a recess in which a nut for the screw is retractable. This reduces stress and damage to the nut. In addition, will shortens the required screw length. Furthermore, the cutting body on the in Circumferential direction front surface have a recess in which the screw head the screw is at least partially retractable. This will be a lesser Load and damage the screw head causes.

Um eine optimale Schneidwirkung bei geringer Beschädigung und Abnutzung des Grundkörpers zu erreichen ist die zur Rotationsachse achsferne Fläche des Schneidkörpers vorzugsweise abgeschrägt. Diese fluchtet mit der abgeschrägten achsfemen Fläche des Grundkörpers, wenn der Schneidkörper an dem Grundkörper befestigt ist. Dadurch wird die Abnutzung des Grundkörpers minimiert.For an optimal cutting effect with little damage and wear of the To reach the body is the axis of rotation away from the axis of the surface Cutting body preferably bevelled. This aligns with the beveled achsfemen surface of the body when the cutting body to the body is attached. As a result, the wear of the body is minimized.

Die Schneidkante des Schneidkörpers ist vorzugsweise gehärtet um eine lange Lebensdauer zu gewährleisten.The cutting edge of the cutting body is preferably hardened for a long time To ensure lifetime.

Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. Ein Ausführungsbeispiel ist nachstehend anhand der beigefügten Zeichnungen näher erläutert.Embodiments of the invention are the subject of the dependent claims. One Embodiment is described below with reference to the accompanying drawings explained.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Fig.1Fig.1
zeigt eine perspektivische Darstellung eines Rotorschlegels mit Grundkörper und aufgeschraubtem Schneidkörpershows a perspective view of a Rotorschlegels Body and screwed cutting body
Fig.2Fig.2
zeigt eine perspektivische Darstellung des Rotorschlegels aus Fig.1 ohne Schneidkörpershows a perspective view of the rotor blade of Figure 1 without cutting body
Fig.3Figure 3
zeigt einen Schnitt durch den Rotorschlegel aus Fig.1shows a section through the rotor blade of Figure 1
Beschreibung eines AusführungsbeispielsDescription of an embodiment

In Fig. 1 ist mit 10 ein Rotorschlegel bezeichnet. Der Rotorschlegel 10 umfasst einen Grundkörper 12 und einen mit einer Schraube 14 aufgeschraubten Schneidkörper 16, der die Schlegelspitze bildet. Der Grundkörper 12 besteht aus einem Hohlzylinder 18, der um eine Achse 20 drehbar gelagert ist. An dem Hohlzylinder ist ein Vorsprung 22 angeformt. In Fig. 1, 10 denotes a rotor blade. The rotor blade 10 includes a Base 12 and a screwed with a screw 14 cutting body 16, the forming the flail tip. The main body 12 consists of a hollow cylinder 18, the order an axle 20 is rotatably mounted. On the hollow cylinder, a projection 22 is formed.

Der Vorsprung 22 ist im wesentlichen stufenförmig ausgebildet, wobei die "Stufe" eine Fläche 24 aufweist, auf welcher der Schneidkörper 16 aufliegt. Die Fläche 24 zeigt in Richtung der Rotationsbewegung, die durch einen Pfeil 26 in Fig.1 dargestellt ist. Sie bildet somit die Vorderfläche des Grundkörpers 12. Der Schneidkörper 16 liegt formschlüssig auf dem Grundkörper 12 auf. Durch die stufenförmige Anordnung wird der Schneidkörper 16 von zwei Seiten von dem Grundkörper 12 umgeben und bildet mit ihm eine Einheit in welche kein Schneidgut eindringen kann.The projection 22 is formed substantially step-shaped, wherein the "stage" a Surface 24, on which the cutting body 16 rests. The area 24 shows in Direction of the rotational movement, which is represented by an arrow 26 in Figure 1. she thus forms the front surface of the base body 12. The cutting body 16 is located positively on the base body 12. By the step-shaped arrangement is the cutting body 16 surrounded by two sides of the body 12 and forms with him a unit in which no cutting material can penetrate.

Der Schneidkörper 16 weist über seine gesamte Breite einen gleichmäßigen trapezförmigen Querschnitt auf. Die kleinere Parallelfläche des Trapezes bildet die rückwärtige Seite des Schneidkörpers 16, welche auf der Vorderfläche 24 des Grundkörpers 12 aufliegt. Der vordere Teil 28 des Schneidkörpers 16 ist gehärtet. Dadurch wird die Abnutzung der Schneidflächen verzögert. Der Schneidkörper kann auch aus zwei Teilen, einem gehärteten Vorderteil und einem nicht gehärteten Rückteil, die miteinander verbunden werden, bestehen.The cutting body 16 has a uniform over its entire width trapezoidal cross section. The smaller parallel surface of the trapezoid forms the rear side of the cutting body 16, which on the front surface 24 of the Base 12 rests. The front part 28 of the cutting body 16 is hardened. This delays the wear of the cutting surfaces. The cutting body can also of two parts, a hardened front part and a non-hardened back part, which are interconnected exist.

Der vordere Teil 28 des Schneidkörpers umfasst zwei Schneidkanten 30 und 32, die auf gegenüberliegenden Seiten des Schneidkörpers parallel zueinander angeordnet sind. In anderen Ausführungsbeispielen sind vier Schneidkanten auf jeder Seite des Schneidkörpers in einem Winkel von etwa 90 Grad zueinander angeordnet. Die Schneidkanten 30 und 32 stehen etwas nach vorne vor. Entsprechend verläuft die Oberfläche 34 bzw. 36 unter einem Winkel etwas schräg auf die Kanten zu. Dadurch wird eine optimale Schneidwirkung erreicht. Zur Erreichung einer guten Stabilität verläuft der mittlere Teil 38 der Vorderfläche zwischen den Schneidkanten 30 und 32 gerade, d.h. parallel zur rückwärtigen Fläche des Schneidkörpers. Der spitze Winkel des Trapezes im Querschnitt ist an seinem Ende 40 und 42 etwas abgestumpft. Dies ist in Fig.3 nochmals dargestellt.The front part 28 of the cutting body comprises two cutting edges 30 and 32, the on opposite sides of the cutter body are arranged parallel to each other. In other embodiments are four cutting edges on each side of the Cutting body arranged at an angle of about 90 degrees to each other. The Cutting edges 30 and 32 project slightly forward. Accordingly, the runs Surface 34 and 36 at an angle slightly obliquely to the edges. Thereby an optimal cutting effect is achieved. To achieve good stability the middle part 38 of the front surface extends between the cutting edges 30 and 32 straight, i. parallel to the rear surface of the cutter body. The sharp angle the trapezium in cross-section is slightly blunted at its end 40 and 42. This is in 3 again shown.

Die rückwärtige Oberfläche des Grundkörpers 12, sowie seine achsfeme Oberfläche 44 sind nicht genau eben. Dadurch sind die Widerstände gegenüber dem Schneidgut etwas geringer. Die achsferne Oberfläche 44 verläuft derart, daß sie sich kantenfrei an die Seitenfläche 46 des Schneidkörpers 16 anschließt. The rear surface of the base body 12, and its achsfeme surface 44th are not exactly exactly. As a result, the resistance to the material to be cut is something lower. The off-axis surface 44 extends such that they are free of edges on the Side surface 46 of the cutter body 16 connects.

In Fig.2 ist der Grundkörper 12 ohne Schneidkörper dargestellt. Man erkennt an der Vorderfläche 24 des Grundkörpers 12 ein angeformtes Profil 50 in Form eines Pyramidenstumpfes. In dem Pyramidenstumpf 50 ist eine Bohrung 52 für die Schraube 14 vorgesehen. Die Seiten 54 verlaufen unter einem Winkel von 90 Grad zueinander und zwei Seiten weisen Kanten auf, die parallel zu den Schneidkanten 30, 32 verlaufen (Fig.3).2, the base body 12 is shown without cutting body. One recognizes at the Front surface 24 of the base 12 an integrally formed profile 50 in the form of a Truncated pyramid. In the truncated pyramid 50 is a bore 52 for the screw 14 provided. The sides 54 are at an angle of 90 degrees to each other and two sides have edges which are parallel to the cutting edges 30, 32 (Fig.3).

Der Schneidkörper 16 weist auf seiner Rückseite eine Ausnehmung auf, die komplementär zu dem Profil 50 ist. Durch diese Anordnung kann der Schneidkörper 16 nur in vier verschiedenen Lagen mit dem Grundkörper verschraubt oder sonstwie darauf befestigt werden. Eine Justierung ist nicht erforderlich. Im vorliegenden Fall wird der Schneidkörper 16 jeweils so aufgesetzt, daß eine der beiden Schneidkanten 30, 32 parallel zur Rotationsachse 20 des Schlegels verläuft. Ist die Schneidkante durch Abnutzung stumpf geworden, wird die Schraube 14 gelöst, der Schneidkörper um 180 Grad gedreht und mit der Schraube 14 wieder befestigt. Dann sitzt eine "frische" Schneidkante an der Stelle der vorherigen. Werden Schneidkanten auf jeder Seite des Schneidkörpers 16 vorgesehen, so kann der Schneidkörper vierfach statt zweifach genutzt werden. Wenn noch mehr Schneidkanten vorgesehen werden sollen, so muß die Anzahl der Seiten des Pyramidenstumpfes 50 erhöht werden.The cutting body 16 has on its rear side a recess which is complementary to the profile 50. By this arrangement, the cutting body 16 only screwed in four different layers to the base body or otherwise on it be attached. An adjustment is not required. In the present case, the Cutting body 16 each placed so that one of the two cutting edges 30, 32nd runs parallel to the axis of rotation 20 of the Schlegelels. Is the cutting edge through Wear has become dull, the screw 14 is released, the cutting body by 180 Degree turned and fastened with the screw 14 again. Then there is a "fresh" Cutting edge in place of the previous one. Be cutting edges on each side of the Cutting body 16 provided so the cutting body can be used four times instead of twice become. If more cutting edges are to be provided, the number the sides of the truncated pyramid 50 are increased.

Auf der rückwärtigen Seite des Grundkörpers 12 ist eine Ausnehmung 60 vorgesehen. Die Schraube 14 ragt durch eine Bohrung 62 im Schneidkörper 16 und die Bohrung 52 im Grundkörper. In der Ausnehmung 60 ist eine passende Mutter 64 für die Schraube 14 angeordnet. Dadurch brauchen die Bohrungen 52 und 62 nicht mit einem Gewinde versehen werden, was natürlich ebenfalls möglich ist. Durch die geschützte Lage von Schraubenkopf und Mutter werden diese durch das Schneidgut nicht oder nur geringfügig beeinträchtigt.On the rear side of the base body 12, a recess 60 is provided. The screw 14 protrudes through a bore 62 in the cutting body 16 and the bore 52 in the main body. In the recess 60 is a matching nut 64 for the screw 14th arranged. As a result, the holes 52 and 62 do not need to be threaded be provided, which of course is also possible. Due to the protected location of Screw head and nut these are not or only slightly by the cut material impaired.

Claims (8)

  1. Swinging flail mallet for rotor shredders, comprising
    (a) a base body (12) having a pivot bearing (18), by means of which the flail mallet (10) is mounted on a rotor for rotation about a pivot axis parallel to the rotor axis, and having a surface at the front, with respect to the direction of rotation, extending over the total width of the base body (12) and forming a step and a plane surface (24) contiguous therewith, which defines a reduced-thickness plate-like end portion (22) of the base body (12),
    (b) a cutting body (16), which also extends across the total width of the base body (12) and has a base, defining a plane base surface and having wedge-shaped cutting ledges of triangular cross section projecting at the two ends thereof and having cutting edges (30,32) parallel to the pivot axis, and
    (c) means for attaching the cutting body (16) to the base body (12) such that the plane base surface lies on the plane surface (24) of the step,
    characterized in that
    (d) the cutting edges have plane outer surfaces extending at an angle outwards, contiguous to the base surface of the base,
    (e) an outer one of the cutting edges projecting at an angle outwards beyond the plane base surface of the base project, with their cutting edge (30), beyond the outer end of the base body (12) remote from the pivot axis,
    (f) a projection (50) is formed on the plane surface (24), the cutting body (16) being placed thereon with a complementary recess in its base surface (26) of the cutting body,
    (g) the cutting body (16), with the outer surface of its inner cutting edge and its base surface, lies form-fittingly on the step of the base body (12), whereby the cutting body (16) is closely engaged, on two sides, by the base body (12).
  2. Flail mallet assembly according to claim 1, characterized in that the profile (50) has the form of a projecting truncated pyramid, its base area laying in the plane of the front surface of the projection (22).
  3. Flail mallet assembly according to claim 1 or 2, characterized in that the cutting body (16) is provided with two cutting edges symmetrical to a plane extending tangential to a rotational circumference.
  4. Flail mallet assembly according to one of the preceeding claims, characterized in that the cutting body (16) is screwed by means of a screw (14) extending through the middle of the cutting body (16) and through the profile (50).
  5. Flail mallet assembly according to claim 4, characterized in that the base body (12) has a recess at the in the direction of the rear surface, with respect to the rotation, of the projection (22), wherein a nut (64) for the screw (14) can be embedded.
  6. Flail mallet assembly according to claim 4, characterized in that the cutting body (16) is provided with a recess (62) at the in the direction of the front surface, with respect to the rotation, wherein the head of the screw (14) can be embedded.
  7. Flail mallet assembly according to one of the preceeding claims, characterized in that the surface of the cutting body (16) is chamfered at the side opposite to the axis of rotation and is aligned with the chamfered side of the base body (12) opposite to the axis of rotation, when the cutting body (16) is fixed to the base body (12).
  8. Flail mallet assembly according to one of the preceeding claims, characterized in that the cutting edge (30, 32) of the cutting body (16) is hardened.
EP02715400A 2001-01-13 2002-01-08 Beating arrangement Expired - Lifetime EP1353754B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200230155T SI1353754T1 (en) 2001-01-13 2002-01-08 Beating arrangement
DK02715400T DK1353754T3 (en) 2001-01-13 2002-01-08 Impact device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10101434 2001-01-13
DE10101434A DE10101434C1 (en) 2001-01-13 2001-01-13 Flail arrangement for rotor shredders
PCT/EP2002/000100 WO2002055203A1 (en) 2001-01-13 2002-01-08 Beating arrangement

Publications (2)

Publication Number Publication Date
EP1353754A1 EP1353754A1 (en) 2003-10-22
EP1353754B1 true EP1353754B1 (en) 2005-04-27

Family

ID=7670514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02715400A Expired - Lifetime EP1353754B1 (en) 2001-01-13 2002-01-08 Beating arrangement

Country Status (21)

Country Link
US (1) US20040056129A1 (en)
EP (1) EP1353754B1 (en)
JP (1) JP2004532718A (en)
CN (1) CN1273219C (en)
AT (1) ATE294020T1 (en)
AU (1) AU2002224981B2 (en)
CA (1) CA2432994A1 (en)
CZ (1) CZ297099B6 (en)
DE (2) DE10101434C1 (en)
DK (1) DK1353754T3 (en)
EA (1) EA004833B1 (en)
ES (1) ES2240719T3 (en)
HU (1) HU225364B1 (en)
IL (2) IL156795A0 (en)
NO (1) NO20033182L (en)
PL (1) PL362476A1 (en)
PT (1) PT1353754E (en)
SI (1) SI1353754T1 (en)
SK (1) SK286713B6 (en)
UA (1) UA74038C2 (en)
WO (1) WO2002055203A1 (en)

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US7204442B2 (en) 2004-01-13 2007-04-17 Vermeer Manufacturing Company Apparatus and method for supporting and retaining a hammer and cutter
DE102005023339A1 (en) * 2005-05-17 2006-11-30 Ferdinand Doppstadt Flails for rotary shredders
WO2009105752A2 (en) * 2008-02-22 2009-08-27 Fecon, Inc. Apparatus and method for land clearing and preparation
DE102010016483A1 (en) * 2010-04-16 2011-10-20 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg cutting body
DE102011085520B4 (en) 2011-10-31 2017-05-04 General Electric Technology Gmbh Hammer of a beater mill
CN102806126A (en) * 2012-03-05 2012-12-05 长沙理工大学 Crusher
DE102012009852A1 (en) 2012-05-21 2013-11-21 Artur Willibald cutter
US11292148B2 (en) * 2015-09-22 2022-04-05 Deere & Company Cutting device tooth mounting arrangement
CN106238149A (en) * 2016-08-30 2016-12-21 浙江华莎驰机械有限公司 A kind of ingot-shaped waste disposal tooth
CN106423412A (en) * 2016-08-30 2017-02-22 浙江华莎驰机械有限公司 Crushing tooth head for waste treatment
CN106238173A (en) * 2016-08-30 2016-12-21 浙江华莎驰机械有限公司 A kind of waste disposal tooth header structure
CN108325628A (en) * 2018-03-30 2018-07-27 浙江华莎驰机械有限公司 A kind of knife conical tooth head of pulverizer and waste disposal
CN108325630A (en) * 2018-03-30 2018-07-27 浙江华莎驰机械有限公司 A kind of nose angle type tooth head of pulverizer and waste disposal
US10856474B2 (en) * 2018-07-12 2020-12-08 Kennametal Inc. Stump cutter tooth assembly
USD965031S1 (en) 2018-07-12 2022-09-27 Kennametal Inc. Stump cutter tooth
CN108686774B (en) * 2018-08-08 2024-08-02 徐州中矿大贝克福尔科技股份有限公司 Simultaneous feeding device and method for multiple hammer crushers
CN108686772A (en) * 2018-08-08 2018-10-23 徐州中矿大贝克福尔科技股份有限公司 A kind of four sides repetition split type tup and the application method of hammer mill
CN110201765A (en) * 2019-05-31 2019-09-06 浙江华莎驰机械有限公司 A kind of broken tooth head of combined type

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Also Published As

Publication number Publication date
DK1353754T3 (en) 2005-08-22
NO20033182D0 (en) 2003-07-11
SK8832003A3 (en) 2003-11-04
CN1486217A (en) 2004-03-31
NO20033182L (en) 2003-09-08
EP1353754A1 (en) 2003-10-22
ATE294020T1 (en) 2005-05-15
EA004833B1 (en) 2004-08-26
JP2004532718A (en) 2004-10-28
ES2240719T3 (en) 2005-10-16
UA74038C2 (en) 2005-10-17
CN1273219C (en) 2006-09-06
HU225364B1 (en) 2006-10-28
EA200300665A1 (en) 2003-12-25
PT1353754E (en) 2005-09-30
IL156795A0 (en) 2004-02-08
IL156795A (en) 2007-07-04
SK286713B6 (en) 2009-04-06
CZ297099B6 (en) 2006-09-13
CA2432994A1 (en) 2002-07-18
HUP0400556A2 (en) 2004-06-28
DE50202900D1 (en) 2005-06-02
CZ20031922A3 (en) 2004-01-14
PL362476A1 (en) 2004-11-02
AU2002224981B2 (en) 2005-12-01
US20040056129A1 (en) 2004-03-25
DE10101434C1 (en) 2002-07-25
WO2002055203A1 (en) 2002-07-18
SI1353754T1 (en) 2006-02-28

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