EP0026466A2 - Scraper apparatus for concrete production plants - Google Patents

Scraper apparatus for concrete production plants Download PDF

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Publication number
EP0026466A2
EP0026466A2 EP80105806A EP80105806A EP0026466A2 EP 0026466 A2 EP0026466 A2 EP 0026466A2 EP 80105806 A EP80105806 A EP 80105806A EP 80105806 A EP80105806 A EP 80105806A EP 0026466 A2 EP0026466 A2 EP 0026466A2
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EP
European Patent Office
Prior art keywords
rope
pulley
winch
scraper
base
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.)
Granted
Application number
EP80105806A
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German (de)
French (fr)
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EP0026466B1 (en
EP0026466A3 (en
Inventor
Ernst Ewald Kühner
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.)
KABAG Karlsruher Baumaschinen GmbH
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KABAG Karlsruher Baumaschinen GmbH
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Publication date
Application filed by KABAG Karlsruher Baumaschinen GmbH filed Critical KABAG Karlsruher Baumaschinen GmbH
Priority to AT80105806T priority Critical patent/ATE7058T1/en
Publication of EP0026466A2 publication Critical patent/EP0026466A2/en
Publication of EP0026466A3 publication Critical patent/EP0026466A3/en
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Publication of EP0026466B1 publication Critical patent/EP0026466B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/14—Booms only for booms with cable suspension arrangements; Cable suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
    • B28C7/08—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips
    • B28C7/0823—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using manually-operated cable-pulled drag shovels
    • B28C7/0829—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using manually-operated cable-pulled drag shovels using reciprocating cable-suspended drag shovels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/48—Drag-lines

Definitions

  • the invention relates to a scraper device with a cantilever over an aggregate storage and about this pivotable boom, which is mounted on a base at the central end, a winch arranged near the base and a scraper bucket moved by di eser by means of rope, the being from one of the Winch directly to the scraper bucket and there is a return from the winch along the boom via at least one deflection roller arranged at its free end to the scraper bucket.
  • Scraper devices of this construction are known in a variety of embodiments (e.g. CH-PS360 331).
  • the base is generally arranged on the top of a column. From the column stem-shaped partitions start, which divide the aggregate storage into individual boxes for different material or different grain.
  • the scraper bucket is used for this purpose, which - lowered into the selected aggregate - is pulled towards the metering wall by means of the pulling rope in order to always fill up sufficient material there.
  • the step bucket must be withdrawn, whereby it is preferably lifted out of the aggregate beforehand.
  • the traction cable is led from the scraper bucket via a deflection roller arranged near the pivot bearing on the boom, then along the boom to the winch, while the return rope is guided from the winch via the deflection roller at the end of the rocker to the scraper bucket. Since the winch and the pulley at the end of the rocker are only a short distance from each other and the winch rope drum has a certain axial extent in order to be able to accommodate a corresponding Seikknature, the rope deflection angle between the winch drum and the deflection roller is very high large, so that the return rope is heavily used and wears out quickly.
  • the invention is based on the object of designing a scraper device of the type mentioned at the outset in such a way that the structural outlay for shortening the return cable is reduced without impairing the functional reliability.
  • At least one pulley is mounted in the region of the guide of the return rope, which can be moved from an operating position into a position shortening the return rope.
  • the scraper device manages with a simple roller and no rope drum is required. It also eliminates two-armed swivel levers and double drive for them.
  • the rope pulley as is known per se (DE-OS 20 48 533), is arranged at the end of a lever which, however, according to the invention is mounted on the boom or — if present — on the operating cabin of the scraper.
  • Two embodiments are particularly suitable for this, namely that the lever is mounted on the operating cabin and the winch is arranged on the side opposite the boom, with reference to the base, or that the lever is free at the free end of the boom At the end, the deflection roller is in turn supported.
  • the necessary drive connections between the central end of the boom, in the area of which all the drive units are usually located are very small.
  • the lever can also be pivoted beyond the free end of the boom, with the result that the scraper bucket can be ejected to the rear via the base of the aggregate store, so that it can also capture material stored there.
  • the latter variant has the further advantage that the deflection pulley, which is necessary per se, is also used as a pulley to shorten the
  • the cable pulley is assigned a second cable pulley at a distance, the distance between the cable pulleys being variable and the cable being guided over both cable pulleys in the manner of a pulley block.
  • Such an embodiment has the advantage that it can in particular be integrated into the boom and also does not surpass the position in the return position. Furthermore, the guidance and the drive can be made simpler.
  • a partition 1 of the aggregate storage can be seen, which limits one of the boxes to the side.
  • an aggregate 2 of certain grain size is stored.
  • the boxes are arranged in a star shape around a column 3 which has a base 4 on its head.
  • an operating cabin 5 is mounted on this base above a slewing ring 7, which has a winch 8 in its substructure 6 in the rear area for driving the device.
  • a boom 9 is pivotally mounted at 10 and anchored via a rope or a strut 11.
  • the boom 9 is used to suspend a scraper bucket 12, which can be pulled from the slope foot of the aggregate 2 to the column 3 by means of a pull rope 13 and thereby pushes the material up to the column.
  • a return rope 14 At the rear of the scraper bucket 12 engages a return rope 14, which is deflected via a roller 15 at the free end of the boom 9, then guided with a section 16 along the boom and extends via a guide roller 17 to the winch 8.
  • the pull rope 13 is led directly to the winch 8, which worries about the drive of the scraper rope.
  • a cable pulley 18, which is identical to the guide pulley 17, is arranged on the operating cabin 5 in the rear upper region, via which the cable is guided and which serves to shorten the cable when the scraper bucket 12 is withdrawn.
  • the cable pulley 18 is mounted on the free end of a lever 19, which in turn is arranged pivotably at 20 on the control cabin. It can be pivoted, for example, by means of a hydraulic cylinder 21 into the dash-dotted, lowered position, in which the section of the return rope 14 is shortened according to the dash-dotted line. In this position, the scraping bucket 12 is lifted out of the aggregate and can be retracted into its starting position — left in the drawing.
  • the cable pulley 18 is shifted to the front end of the boom 9 and at the same time fulfills the function of the deflecting roller 15. It also sits at the end of a lever 19 which is pivotally mounted at 20 at the free end of the boom 9 and can be brought from the operating position shown with a solid line to the return position shown in broken lines.
  • the lever 19 is pivoted into the dash-dotted position, the step bucket 12 can be ejected beyond the embankment foot, particularly in manual operation.
  • lever 19 with the pulley 18 can also be arranged at any point on the boom 9. Furthermore, it is possible to support the boom 9 at its free end via a spread support which can be moved along the periphery of the aggregate store. Here too, however, the drive takes place centrally from the control cabin 5.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Reciprocating Pumps (AREA)

Abstract

1. A scraper apparatus with a jib (9) stretching out over an aggregate store and able to be turned thereover and which at its central end is turnable joined to a base (4), with a winch (8) next to the base, and a scraper bucket (12) moved by the winch by way of a rope, the rope consisting of a pulling rope (13) directly fixed to the scraper bucket and a return rope (14, 16) running from the winch along the jib round at least one deflection pulley (15) at the free end of the jib to the scraper bucket, characterized in that the jib (9) is turnable joined at the front side of the base (6) of a driver's cabin (5), that the winch (8) is placed on the rear side opposite to the jib, that a lever (19) is turnable joined to the cabin of the apparatus and that in the path of the return rope (14, 16) and on the free end of the lever (19) a rope pulley (18) is turnable mounted, which is movable from an operation position into a position for shortening the return rope (16) and has in every position a sufficient distance to the drum (8) of the winch so that the fleat angle between the winch and the rope pulley (18) rests in harmless limits.

Description

Die Erfindung betrifft ein Schrappgerät mit einem über ein Zuschlagstofflager auskragenden und über dieses schwenkbaren Ausleger, der am zentralen Ende auf einem Sockel gelagert ist, einer nahe dem Sockel angeordneten Winde und einem von di eser mittels Seil bewegten Schrappkübel, wobei das Sei aus einem von der Winde direkt zum Schrappkübel geführten Zugseil und einem von der Winde entlang dem Ausleger über wenigstens eine an dessen freiem Ende angeordnete Umlenkrolle zum Schrappkübel geführten Rückhol sei besteht.The invention relates to a scraper device with a cantilever over an aggregate storage and about this pivotable boom, which is mounted on a base at the central end, a winch arranged near the base and a scraper bucket moved by di eser by means of rope, the being from one of the Winch directly to the scraper bucket and there is a return from the winch along the boom via at least one deflection roller arranged at its free end to the scraper bucket.

Schrappgeräte dieses Aufbaus sind in einer Vielzahl von Ausführungsformen bekannt (z. B. CH-PS360 331). Bei diesen Schrappgeräten ist der Sockel im allgemeinen auf dem Kopf einer Säule angeordnet. Von der Säule gehen stemförmi g Trennwände aus, die das Zuschlagstofflager in einzelne Boxen für unterschiedliches Material bzw. unterschiedliohe Kömung aufteilen. Nahe der Säule befindet sich darüber hinaus häufig eine Dosierwand, durch die die Zuschlagstoffe den Verarbeitungsmaschinen der Betonbereitungsanlage zugeführt werden. Hierzu dient der Schrappkübel , der - in den ausgewählten Zuschlagstoff abgesenkt - mittels des Zugseils zur Dosierwand hin gezogen wird, um dort stets ausreichend Material aufzuschütten. Für ein erneutes Arbeitsspiel muß der Schreppkübel zurückgezogen werden, wobei er vorzugswei se zuvor aus dem Zuschlagstoff ausgehoben wird. Hierzu muß das Rückholseil verkürzt werden, was bei bekannten Anlagen (z. B. DE-AS 10 72 533) dadurch geschieht, deß für das Zugseil eine Bremse und für Zugseil und Rückholseil getrennte Seiltrommeln notwendig sind. Eine solche Lösung ist naturgemäß aufwendig und störanfällig.Scraper devices of this construction are known in a variety of embodiments (e.g. CH-PS360 331). In these scraper devices, the base is generally arranged on the top of a column. From the column stem-shaped partitions start, which divide the aggregate storage into individual boxes for different material or different grain. In addition, there is often a metering wall near the column through which the aggregates are fed to the processing machines of the concrete preparation plant. The scraper bucket is used for this purpose, which - lowered into the selected aggregate - is pulled towards the metering wall by means of the pulling rope in order to always fill up sufficient material there. For a new work cycle, the step bucket must be withdrawn, whereby it is preferably lifted out of the aggregate beforehand. For this purpose, the return rope must be shortened, which happens in known systems (eg DE-AS 10 72 533) because a brake is required for the pull rope and separate rope drums are required for the pull rope and return rope. Such a solution is naturally complex and prone to failure.

Es ist deshalb bereits im Zusammenhang mit Schrappgeräten anderer Gattung, den sogenannten Brückenschrappgeräten, bei denen also das freie Ende des Auslegers über eine Fahrstütze am Boden abgestützt ist, vorgeschlagen worden (DE-OS 20 48 533), an der Fahrstütze eine Schwinge anzuordnen, die an ihrem frei en Ende eine Umlenkrolle für das Rücklnolseil lagert. Nahe der Schwenkachse der Schwinge an der Stütze ist die Winde für den Antrieb des Schrappseils angeordnet. Auch alle anderen Antriebsaggregate sind an der Stütze angeordnet, während der Ausleger an seinem zentralen Ende lediglich in einem Drehlager auf der zentralen Säule sitzt.It has therefore already been proposed in connection with scraper devices of a different type, the so-called bridge scraper devices, in which the free end of the boom is supported on the floor by a driving support (DE-OS 20 48 533), to arrange a rocker arm on the driving support a pulley for the return rope is supported at its free end. The winch for driving the scraper rope is located near the pivot axis of the rocker on the support. All other drive units are also arranged on the support, while the boom at its central end only sits in a pivot bearing on the central column.

Das Zugseil ist vom Schrappkübel über eine nahe dem Drehlager am Ausleger angeordnete Umlenkrolle, anschließend am Ausleger entlang zur Winde geführt, während das Rückholseil von der Winde über die Umlenkrolle am Ende der Schwinge zum Schrappkübel geführt ist. Da die Winde und die Umtenkrolle am Ende der Schwinge nur einen ger ingen Abstand von einander aufweisen und die Seiltrommel der Winde eine gewisse axiale Ausdehnung aufwei st, um ei ne entsprechende Seikkänge änge aufnehmen zu können, ist der Seil-Ablenkungswinkel zwischen Windentrommel und Umlenkrolle sehr groß, so daß das Rückhol seil stark beansprucht wird und schnell verschleißt.The traction cable is led from the scraper bucket via a deflection roller arranged near the pivot bearing on the boom, then along the boom to the winch, while the return rope is guided from the winch via the deflection roller at the end of the rocker to the scraper bucket. Since the winch and the pulley at the end of the rocker are only a short distance from each other and the winch rope drum has a certain axial extent in order to be able to accommodate a corresponding Seikkänge, the rope deflection angle between the winch drum and the deflection roller is very high large, so that the return rope is heavily used and wears out quickly.

In der Praxis ist deshalb am Ende der Schwinge nicht eine einfache Umlenkrolle, sondern eine Seiltrommel gelagert worden, so daß der Ablenkungswinkel nur noch gering ist. Eine solche Seiltrommel mit entsprechender axialer Ausdehnung erfordert jedoch zwei parallel angeordnete Schwingen, die zudem je einen eigenen Antrieb, z. B. je einen Hydraulikzylinder erforderlich machen. Eine solche Konstruktion ist außerordentlich funktionssicher, jedoch erfordert sie auch einen nicht geringen Bauaufwand.In practice, therefore, not a simple deflection roller, but rather a rope drum has been mounted at the end of the rocker arm, so that the angle of deflection is only small. Such a cable drum with a corresponding axial extension, however, requires two rockers arranged in parallel, each of which also has its own drive, for. B. each require a hydraulic cylinder. Such a construction is extremely reliable, but it also requires a considerable amount of construction.

Der Erfindung liegt die Aufgabe zugrunde, ein Schrappgerät des eingangs genannten Aufbaus so auszubilden, daß der bauliche Aufwand für die Verkürzung des Rückholseils ohne Beeinträchtigung der Funktionssicherheit verringert wird.The invention is based on the object of designing a scraper device of the type mentioned at the outset in such a way that the structural outlay for shortening the return cable is reduced without impairing the functional reliability.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß im Bereich der Führung des Rückhoiseils wenigstens eine Seilrolle gelagert ist, die aus einer Betriebsstellung in eine das Rückholseil verkürzende Stellung bewegbar ist.This object is achieved in that at least one pulley is mounted in the region of the guide of the return rope, which can be moved from an operating position into a position shortening the return rope.

Durch die an sich bekannte Anordnung der Winde im Bereich des Sockels des Schrappgerätes und durch die Anordnung der das Rückholseil verkürzenden Seilrolle kann letztere Anordnung so getroffen werden, daß der Seil-Ablenkungswinkel in unschädlichen Grenzen gehalten werden kann. Damit kommt also das erfindungsgemäße Schrappgerät mit einer einfachen Rolle aus und es wird keine Seiltrommel benötigt. Ferner entfallen damit zweiarmige Schwenkhebel und doppelter Antrieb für diese.Due to the known arrangement of the winch in the area of the base of the scraper and by the arrangement of the rope shortening the return rope, the latter arrangement can be made so that the rope deflection angle can be kept within harmless limits. Thus, the scraper device according to the invention manages with a simple roller and no rope drum is required. It also eliminates two-armed swivel levers and double drive for them.

In bevorzugter Ausführung ist die Seilrolle, wie an sich bekannt (DE-OS 20 48 533) am Ende eines Hebels angeordnet, der jedoch erfindungsgemäß am Ausleger oder -sofern vorhanden- an der Bedienungskabine des Schrappgerätes gelagert ist.In a preferred embodiment, the rope pulley, as is known per se (DE-OS 20 48 533), is arranged at the end of a lever which, however, according to the invention is mounted on the boom or — if present — on the operating cabin of the scraper.

Hierfür bieten sich insbesondere zwei Ausführungsformen an, indem nämlich der Hebel an der Bedienungskabine gelagert und die Winde -mit Bezug auf den Sockel - an der dem Ausleger gegenüberl i egenden Seite angeordnet ist, oder indem der Hebel am freien Ende des Auslegers und an seinem frei en Ende wiederum die Umlenkrolle gelagert ist. Im erstgenannten Fall sind die notwendigen Antriebsverbindungen zwischen dem zentralen Ende des Auslegers, in dessen Bereich in der Regel alle Antriebsaggregate sitzen, sehr gering. Im zweiten Fall ergibt sich der zusätzliche Vorteil, daß der Hebel auch über das freie Ende des Auslegers hinaus geschwenkt werden kann mit der Folge, daß der Schrappkübel nach hinten über den Fuß des Zuschlagstofflagers ausgeworfen werden, also auch dort lagerndes Material erfassen kann. Letztere Variante hat den weiteren Vorteil, daß die an sich notwendige Umlenkrolle zugleich als Seilrolle zum Verkürzen des Two embodiments are particularly suitable for this, namely that the lever is mounted on the operating cabin and the winch is arranged on the side opposite the boom, with reference to the base, or that the lever is free at the free end of the boom At the end, the deflection roller is in turn supported. In the former case, the necessary drive connections between the central end of the boom, in the area of which all the drive units are usually located, are very small. In the second case, there is the additional advantage that the lever can also be pivoted beyond the free end of the boom, with the result that the scraper bucket can be ejected to the rear via the base of the aggregate store, so that it can also capture material stored there. The latter variant has the further advantage that the deflection pulley, which is necessary per se, is also used as a pulley to shorten the

Gemäß einer anderen Ausführungsform der Erfindung ist der Seilrolle eine zweite Seilrolle mit Abstand zugeordnet, wobei der Abstand zwischen den Seilrollen veränderlich und das Seil über beide Seilrollen nach Art eines Flaschenzugs geführt ist. Eine solche Ausführungsform hat den Vorteil, daß sie insbesondere in den Ausleger integriert werden kann und auch in der Rückhol stel lung di esen nicht überragt . Fer ner können di e Führung und der Antrieb einfacher gestaltet sein.According to another embodiment of the invention, the cable pulley is assigned a second cable pulley at a distance, the distance between the cable pulleys being variable and the cable being guided over both cable pulleys in the manner of a pulley block. Such an embodiment has the advantage that it can in particular be integrated into the boom and also does not surpass the position in the return position. Furthermore, the guidance and the drive can be made simpler.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung einiger in der Zeichnung dargestellter Ausführungsformen. In der Zeichnung zeigen:

  • Figur 1 Eine schematische Seitenansicht eines Schrappgerätes mit Zuschlagstofflager;
  • Figur 2 eine der Figur 1 entsprechende Ansicht einer abgewandelten Ausführungsform.
Further details and advantages of the invention result from the following description of some embodiments shown in the drawing. The drawing shows:
  • Figure 1 is a schematic side view of a scraper with aggregate storage;
  • Figure 2 is a view corresponding to Figure 1 of a modified embodiment.

In Figur 1 ist eine Trennwand 1 des Zuschlagstofflagers erkennbar, die eine der Boxen nach der Seite hin begrenzt . In dieser Boxe lagert ein Zuschlagstoff 2 bestimmter Körnung. Die Boxen sind -in nicht gezeigter Draufsicht- sternförmig um eine Säule 3 angeordnet, die an ihrem Kopf einen Sockel 4 trägt. Auf diesem Sockel ist beim gezeigten Ausführungsbeispiel eine Bedienungskabine 5 über einem Drehkranz 7 gelagert, die in ihrem Unterbau 6 und zwar im rückwärtigen Bereich eine Winde 8 zum Antrieb des Gerätes aufweist.In Figure 1, a partition 1 of the aggregate storage can be seen, which limits one of the boxes to the side. In this box an aggregate 2 of certain grain size is stored. In a plan view (not shown), the boxes are arranged in a star shape around a column 3 which has a base 4 on its head. In the exemplary embodiment shown, an operating cabin 5 is mounted on this base above a slewing ring 7, which has a winch 8 in its substructure 6 in the rear area for driving the device.

Im vorderen Bereich des Unterbaus 6 ist ein Ausleger 9 bei 10 schwenkbar gelagert und über ein Seil bzw. eine Strebe 11 abgespannt. Der Ausleger 9 dient zur Aufhängung eines Schrappkübels 12, der mittels eines Zugseils 13 vom Böschungsfuß des Zuschlagstoffs 2 zur Säule 3 hin gezogen werden kann und dabei das Material zur Säule hin hochschiebt. An der Rückseite des Schrappkübels 12 greift ei n Rückholseil 14 an, das über eine Rolle 15 am freien Ende des Auslegers 9 umgelenkt, anschließend mit einem Abschnitt 16 entlang des Auslegers geführt ist und über eine Führungsrolle 17 zur Winde 8 verläuft. Demgegenüber ist das Zugseil 13 direkt zur Winde 8 geführt, weiche den Antrieb des Schrappseils besorgt.In the front area of the substructure 6, a boom 9 is pivotally mounted at 10 and anchored via a rope or a strut 11. The boom 9 is used to suspend a scraper bucket 12, which can be pulled from the slope foot of the aggregate 2 to the column 3 by means of a pull rope 13 and thereby pushes the material up to the column. At the rear of the scraper bucket 12 engages a return rope 14, which is deflected via a roller 15 at the free end of the boom 9, then guided with a section 16 along the boom and extends via a guide roller 17 to the winch 8. In contrast, the pull rope 13 is led directly to the winch 8, which worries about the drive of the scraper rope.

Beim gezeigten Ausführungsbeispiel ist an der Bedienungskabine 5 im rückwärtigen oberen Bereich eine Seilrolle 18, die identisch mit der Führungsrolle 17 ist, angeordnet, über die das Seil geführt ist und die zum Verkürzen des Seils beim Rückzug des Schrappkübels 12 dient. Zu diesem Zweck ist die Seilrolle 18 am freien Ende eines Hebels 19 gelagert, der seinerseits bei 20 an der Bedienungskabine schwenkbar angeordnet ist. Er kann beispielsweise mittels eines Hydraulikzylinders 21 in die strichpunktierte, abgesenkte Lage, verschwenkt werden, in der das Rückholseil 14 mit seinem Abschnitt 16 entsprechend der strichpunktierten Linie verkürzt wird. In dieser Lage ist der Schrappkübel 12 aus dem Zuschlagstoff ausgehoben und kann in seine Ausgangsposition -in der Zei chnung links- zurückgezogen werden.In the exemplary embodiment shown, a cable pulley 18, which is identical to the guide pulley 17, is arranged on the operating cabin 5 in the rear upper region, via which the cable is guided and which serves to shorten the cable when the scraper bucket 12 is withdrawn. For this purpose, the cable pulley 18 is mounted on the free end of a lever 19, which in turn is arranged pivotably at 20 on the control cabin. It can be pivoted, for example, by means of a hydraulic cylinder 21 into the dash-dotted, lowered position, in which the section of the return rope 14 is shortened according to the dash-dotted line. In this position, the scraping bucket 12 is lifted out of the aggregate and can be retracted into its starting position — left in the drawing.

Bei der in Figur 2 gezeigten Ausführungsform ist die Seilrolle 18 an das vordere Ende des Auslegers 9 verlagert und erfüllt dort zugleich die Funktion der Umlenkrolle 15. Auch sie sitzt am Ende eines Hebels 19, der bei 20 am freien Ende des Auslegers 9 schwenkbar gelagert und aus der mit durchgezogener Linie wiedergegebenen Betriebsstellung in die strichpunktiert gezeigte Rückholstellung gebracht werden kann. Beim Verschwenken des Hebels 19 in die strichpunktierte Lage kann -insbesondere bei Handbetrieb- der Schreppkübel 12 über den Böschungsfuß hinaus ausgeworfen werden.In the embodiment shown in Figure 2, the cable pulley 18 is shifted to the front end of the boom 9 and at the same time fulfills the function of the deflecting roller 15. It also sits at the end of a lever 19 which is pivotally mounted at 20 at the free end of the boom 9 and can be brought from the operating position shown with a solid line to the return position shown in broken lines. When the lever 19 is pivoted into the dash-dotted position, the step bucket 12 can be ejected beyond the embankment foot, particularly in manual operation.

Selbstverständlich kann der Hebel 19 mit der Seilrolle 18 auch an jeder beliebigen Stelle des Auslegers 9 angeordnet sein. Weiterhin ist es möglich, den Ausleger 9 an seinem freien Ende über eine gespreizte Stütze abzustützen, die an der Peripherie des Zuschlagstofflagers entlang fahrbar ist. Der Antrieb erfolgt jedoch auch hier zentral von der Bedienungskabine 5 aus.Of course, the lever 19 with the pulley 18 can also be arranged at any point on the boom 9. Furthermore, it is possible to support the boom 9 at its free end via a spread support which can be moved along the periphery of the aggregate store. Here too, however, the drive takes place centrally from the control cabin 5.

Claims (6)

1. Schrappgerät mit einem über ein Zuschlagstofflager auskragenden und über dieses schwenkbaren Ausleger, der am zentralen Ende auf einem Sockel gelagert ist, einer nahe dem Sockel angeordneten Winde und einem von dieser mittels Seil bewegten Schrappkübel, wobei das Seil aus einem von der Winde direkt zum Schrappkübel geführten Zugseil und einem von der Winde entlang dem Ausleger über wenigstens eine an dessen freiem Ende angeordnete Umlenkrolle zum Schrappkübel geführten Rückholseil besteht, dadurch gekennzeichnet , daß im Bereich der Führung des Rückhol seils (14/16) wenigstens eine Seilrolle (18) gelagert ist, die aus einer Betriebsstellung in eine das Rückholseil (16) verkürzenden Stellung bewegbar ist.1. Scraper device with a cantilever over an aggregate storage and about this pivotable boom, which is mounted on a base at the central end, a winch arranged near the base and a scraper bucket moved by this by means of a rope, the rope from one of the winches directly to the Scraper bucket-guided pull rope and one from the winch along the boom via at least one return pulley arranged at its free end to the scraping bucket lead rope, characterized in that at least one rope pulley (18) is mounted in the area of the guide of the return rope (14/16) which can be moved from an operating position into a position that shortens the return cable (16). 2. Schrappgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Seilrolle (18) an dem freien Ende eines am Ausleger (9) schwenkbar angeordneten Hebels (19) gelagert ist.2. Scraper device according to claim 1, characterized in that the cable pulley (18) is mounted on the free end of a lever (19) pivotably arranged on the boom (9). 3. Schrappgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Hebel (19) am freien Ende des Auslegers (9) und an seinem freien Ende wiederum die Seilrolle (18), die zugl ei ch als Umlenkrolle dient, gelagert ist.3. Scraper device according to claim 1 or 2, characterized in that the lever (19) at the free end of the boom (9) and at its free end in turn the rope pulley (18), which serves as a deflection pulley ei ch. 4. Schrappgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Hebel (19) nahe dem Sockel (6) des Schrappgerätes gelagert und die Winde (8) -mit Bezug auf den Sockel- an der dem Ausleger (9) gegenüberliegenden Seite angeordnet ist.4. Scraper device according to claim 1 or 2, characterized in that the lever (19) is mounted near the base (6) of the scraper device and the winch (8) is arranged with respect to the base on the side opposite the boom (9) is. 5. Schrappgerät nach Anspruch 4, mit einer auf dem Sockel angeordneten Bedienungskabine, dadurch gekennzeichnet, daß der Hebel (19) an der Kabine (5) des Schrappgerätes gelagert ist.5. Scraper device according to claim 4, with a control cabin arranged on the base, characterized in that the lever (19) is mounted on the cabin (5) of the scraper device. 6. Schrappgerät nach Anspruch 1, dadurch gekennzeichnet, daß der Seilrolle eine zweite Seilrolle mit Abstand zugeordnet ist, der Abstand zwischen den Seilrollen veränderlich und das Seil über beide Seilrollen nach Art eines Flaschenzugs geführt ist.6. Scraper device according to claim 1, characterized in that the pulley is assigned a second pulley at a distance, the distance between the pulleys is variable and the rope is guided over both pulleys in the manner of a pulley.
EP80105806A 1979-09-29 1980-09-25 Scraper apparatus for concrete production plants Expired EP0026466B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80105806T ATE7058T1 (en) 1979-09-29 1980-09-25 SCRAPPING DEVICE FOR CONCRETE PREPARATION PLANTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792939710 DE2939710A1 (en) 1979-09-29 1979-09-29 SCRAPER DEVICE FOR CONCRETE PREPARATION PLANTS
DE2939710 1979-09-29

Publications (3)

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EP0026466A2 true EP0026466A2 (en) 1981-04-08
EP0026466A3 EP0026466A3 (en) 1981-07-01
EP0026466B1 EP0026466B1 (en) 1984-04-11

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ID=6082363

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Application Number Title Priority Date Filing Date
EP80105806A Expired EP0026466B1 (en) 1979-09-29 1980-09-25 Scraper apparatus for concrete production plants

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EP (1) EP0026466B1 (en)
AT (1) ATE7058T1 (en)
BR (1) BR8006219A (en)
DE (1) DE2939710A1 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
DE3317853A1 (en) * 1983-05-17 1984-11-22 Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen Scraper unit with stress-relieved jib
EP0702111A3 (en) * 1994-09-14 1996-05-29 Stetter Gmbh Radial scraper
US10982410B2 (en) * 2016-09-08 2021-04-20 Joy Global Surface Mining Inc System and method for semi-autonomous control of an industrial machine

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DE1177552B (en) * 1961-10-12 1964-09-03 Georg Stetter Mechanical scraper
FR1527060A (en) * 1967-04-17 1968-05-31 Promat Device for handling bulk materials
DE1481172A1 (en) * 1966-08-23 1969-01-02 Elba Werk Maschinen Gmbh & Co Rope scraper device for loading a dispenser for bulk goods
DE1288983B (en) * 1965-04-28 1969-02-06 Betonma Internat Scraper
DE1930392A1 (en) * 1969-06-14 1970-12-17 Peschke Karl Device for scraping loose goods
DE2048533A1 (en) * 1970-10-02 1972-06-15 Kühner, Ernst EaId, 7501 Bruchhausen Bridge snap device
FR2343089A1 (en) * 1976-03-03 1977-09-30 Johansson Graevmaskin IMPROVEMENTS FOR EXCAVATORS OR OTHER SIMILAR EARTH-MOVING MACHINES EQUIPPED WITH A SHOVEL OR CLAW BUCKET

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Publication number Priority date Publication date Assignee Title
CH360331A (en) * 1957-02-23 1962-02-15 Elba Werk Maschinen Gmbh & Co Feeding system, especially for concrete mixing machines
DE2536557C3 (en) * 1975-08-16 1979-10-11 Fa. Johannes Fuchs, 7257 Ditzingen Rope scraper

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE870678C (en) * 1950-10-04 1953-03-16 Buckau Wolf Maschf R Schuerfuebelbagger for the separate extraction of different layers
DE1177552B (en) * 1961-10-12 1964-09-03 Georg Stetter Mechanical scraper
DE1288983B (en) * 1965-04-28 1969-02-06 Betonma Internat Scraper
DE1481172A1 (en) * 1966-08-23 1969-01-02 Elba Werk Maschinen Gmbh & Co Rope scraper device for loading a dispenser for bulk goods
FR1527060A (en) * 1967-04-17 1968-05-31 Promat Device for handling bulk materials
DE1930392A1 (en) * 1969-06-14 1970-12-17 Peschke Karl Device for scraping loose goods
DE2048533A1 (en) * 1970-10-02 1972-06-15 Kühner, Ernst EaId, 7501 Bruchhausen Bridge snap device
FR2343089A1 (en) * 1976-03-03 1977-09-30 Johansson Graevmaskin IMPROVEMENTS FOR EXCAVATORS OR OTHER SIMILAR EARTH-MOVING MACHINES EQUIPPED WITH A SHOVEL OR CLAW BUCKET

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3317853A1 (en) * 1983-05-17 1984-11-22 Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen Scraper unit with stress-relieved jib
EP0702111A3 (en) * 1994-09-14 1996-05-29 Stetter Gmbh Radial scraper
US10982410B2 (en) * 2016-09-08 2021-04-20 Joy Global Surface Mining Inc System and method for semi-autonomous control of an industrial machine

Also Published As

Publication number Publication date
DE2939710A1 (en) 1981-04-16
BR8006219A (en) 1981-04-07
EP0026466B1 (en) 1984-04-11
ATE7058T1 (en) 1984-04-15
EP0026466A3 (en) 1981-07-01

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