EP1520935B1 - Cleaning scraper for a soil compaction roller and soil compaction roller - Google Patents

Cleaning scraper for a soil compaction roller and soil compaction roller Download PDF

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Publication number
EP1520935B1
EP1520935B1 EP04021218A EP04021218A EP1520935B1 EP 1520935 B1 EP1520935 B1 EP 1520935B1 EP 04021218 A EP04021218 A EP 04021218A EP 04021218 A EP04021218 A EP 04021218A EP 1520935 B1 EP1520935 B1 EP 1520935B1
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EP
European Patent Office
Prior art keywords
scraping device
tube
cross member
teeth
pair
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EP04021218A
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German (de)
French (fr)
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EP1520935A2 (en
EP1520935A3 (en
Inventor
Christian Berg
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Bomag GmbH and Co OHG
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Bomag GmbH and Co OHG
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Priority claimed from DE102004043038A external-priority patent/DE102004043038A1/en
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Publication of EP1520935A3 publication Critical patent/EP1520935A3/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/238—Wetting, cleaning or heating rolling elements, e.g. oiling, wiping, scraping
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers

Definitions

  • the invention relates to a stripping device for a soil compaction roller with pad feet, with a spar, on which Abstreiferzähne are arranged, and with an optionally adjustable Holmhalterung, which allows readjustment of the Abstreiferzähne to the soil compaction roller.
  • the invention further relates to a soil compaction roller with such a stripping device.
  • the invention has for its object to provide a scraper and a soil compaction roller of the type mentioned, in which a sufficiently large gap to the bandage is present, without increasing the deposit area and the overall length.
  • the spar has a tube, and that the spar holder at least at one end a pair of tube at least partially comprehensive, releasably connected half-shells for non-rotatable and non-sliding jamming of the tube.
  • a basic idea of the invention is therefore that the readjustment of the wiper teeth can be carried out by a pivotal movement of the spar.
  • the rotational movement results in a long feed path, so that the wiper teeth can wear to a large extent without the wiper effect being impaired overall. This can be achieved very long service life.
  • the distance of the spar to the bandage is independent of the travel in the swivel adjustment and can therefore be made as small as possible. Furthermore, the distance of the spar to Traverse independent of the travel can be kept as large as possible.
  • the attachment of the scraper teeth allows a relatively small spar diameter, which has the advantage that the area is relatively small on which soil material can accumulate. Thus, the clogging of the gap between Traverse and bandage is avoided even with sticky material.
  • the spar is a tube with a round, circular or elliptical cross-section. It is also possible to use angular, for example triangular, quadrangular or polygonal cross sections, since these can be held well in a rotationally fixed manner due to the corners. Preferably, however, the spar has a tube with a circular cross section, since this is particularly stable and torsionally stiff.
  • the bearing areas of the scraper teeth have two fingers which engage around the beam in the region of a circle segment, and that the fingers are welded to the pipe.
  • the round cross section facilitates the falling through of soil material and can in Remaining if necessary also be cleaned easily. By embracing fingers, a stable attachment of the wiper teeth is achieved despite the small spar cross-section.
  • a welding distortion of the tube when welding the Abstreiferzähne is avoided by the fact that the fingers are symmetrically angularly offset, preferably diametrically below 180 °, welded to each other on the pipe.
  • a particularly simple to produce and easy to handle attachment of the spar is that at each end of the pipe a pair of half shells for releasable, non-rotatable and non-slip jamming of the tube are present. Standard components can be used for this purpose. With such a clamping device, not only the adjustment of the wiper teeth can be performed by pivoting in a simple manner, but it can also be carried out in the axial direction easy adjustment and tolerance compensation.
  • the delivery is particularly simple in that the half-shells are screwed together, and the screws from the outside, preferably from below, are easily accessible.
  • the half-shells of each pair have at least three on the two half-shells distributed emphasis for generating a three-point clamping.
  • each half-shell of each pair has at least two highlights for generating a four-point clamping.
  • the wiper teeth are preferably forged and provided at their ends with wear caps.
  • Fig. 1 illustrates a bottom compaction roller 11 cut transversely to its axis with stamp feet 12 distributed over the bandage 8.
  • the soil compaction roller 11 is arranged in a frame of two cheeks 6, of which only one is visible in the illustration, and two axially parallel traverses 7, 7 '.
  • stripping devices 13, 13 ' are present between the pad feet 12 in the illustrated example, each extending parallel to the trusses 7, 7' and forming a respective gap 14, 14 'below them.
  • the stripping devices 13, 13 'each have a designed as a tube 2 with a circular cross section spar, which serves as a carrier for solid, forged scraper teeth 1. These protrude radially into the spaces between the pad feet 12, wherein they are in the in Fig. 1 shown state are directed obliquely downwards.
  • each tooth 1 in its support area and base two fingers 18, which surround the tube 2 in the region of a circular segment, for example, about 180 °.
  • the fingers 18 are welded to the pipe 2 at symmetrically diametrically opposed by approximately 180 ° lying welds 10.
  • the tube 2 is releasably held at its two ends in an optionally adjustable Holmhalterung 15, which allows an adjustment of the Abstreiferzähne 1 on the soil compaction roller 11 by pivoting the tube 2 in the direction of arrow 16.
  • the pivot axis lies in the center of gravity of the carrier profile parallel to the axis of the soil compaction roller 11.
  • the Holmhalterept 15 are fixed to the cheeks 6, for example by screwing.
  • the tubes 2 are arranged at a minimum distance from the bandage 8, so that they do not increase the overall length of the frame. In addition, they run with a sufficiently large gap width a parallel to the trusses 7, 7 ', so that the falling through and discharge of stripped soil material, for example according to arrow 17 is reliable.
  • the tube diameter and the foot areas of the scraper teeth 1 have a small diameter and thus form a relatively small area with an effective width b, so that there may possibly be little soil material deposited there.
  • the Holmhalterept 15 each have two half-shells 4, 5, which comprise the tube 2 and are releasably connected by means of screws 3 to form a clamping connection.
  • On the inner surfaces of each half-shell 4, 5 are two, for example, offset by 90 ° emphasis 9 available, so that a good four-point clamping is achieved.
  • the tube 2 When tightened screws 3, the tube 2 is rotatably and non-slip clamped. Thus, the position and orientation of the wiper teeth 1 is fixed. If the screws 3 are released, the tube 2 can be pivoted for radial and axial readjustment of the wiper teeth 1 and moved axially. This delivery is easy because the screws 3 are well accessible from below.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Architecture (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Machines (AREA)
  • Soil Working Implements (AREA)
  • Earth Drilling (AREA)

Description

Die Erfindung betrifft eine Abstreifvorrichtung für eine Bodenverdichtungswalze mit Stampffüßen, mit einem Holm, an welchem Abstreiferzähne angeordnet sind, und mit einer wahlweise verstellbaren Holmhalterung, die eine Nachjustierung der Abstreiferzähne an der Bodenverdichtungswalze ermöglicht. Die Erfindung betrifft ferner eine Bodenverdichtungswalze mit einer derartigen Abstreifvorrichtung.The invention relates to a stripping device for a soil compaction roller with pad feet, with a spar, on which Abstreiferzähne are arranged, and with an optionally adjustable Holmhalterung, which allows readjustment of the Abstreiferzähne to the soil compaction roller. The invention further relates to a soil compaction roller with such a stripping device.

Bei Bodenverdichterwalzen mit Stampffüßen wie z.B. bekannt von US-A-3922106 , tritt das Problem auf, dass auf der Bandage zwischen den Stampffüßen Bodenmaterial anhaftet und dadurch die Leistung der Bodenverdichterwalze verschlechtert wird. Es ist bekannt, unmittelbar an der Traverse einzelne Abstreiferzähne aus Flachstahl oder Stahlguss anzubringen, die in die Zwischenräume der Stampffüße ragen. Als nachteilig ist dabei anzusehen, dass Bodenmaterial den Spalt zwischen Traverse und Bandage zusetzen kann. In ungünstigen Fällen baut sich sogar Bodenmaterial über der Traverse und der Bandage auf. In jedem Fall ist eine Arbeitsunterbrechung zur Reinigung erforderlich.In soil compactor rollers with pad feet such as known from US-A-3922106 , the problem arises that soil adheres to the bandage between the tamping feet, thereby degrading the performance of the soil compacting roller. It is known to attach individual stripper teeth made of flat steel or cast steel directly on the traverse, which protrude into the spaces between the stamp feet. A disadvantage is to be considered that soil material can enforce the gap between traverse and bandage. In unfavorable cases, even soil material builds up over the traverse and the bandage. In any case, a break from work is required for cleaning.

Ferner ist es bekannt, Flachstahlzähne an einem Holm unterhalb der Traverse anzubringen, wobei Traverse, Holm und Walzenachse parallel verlaufen. Die Flachstähle sind gemeinsam zwischen zwei Schienen in der Weise gehalten, dass sie bei Verschleiß einzeln nachgestellt werden können. Dazu muss zunächst die Klemmung der beiden Schienen gelöst werden und anschließend muss jeder einzelne Zahn oder die ganze Schiene justiert werden. Daher ist dieser Vorgang sehr zeit- und arbeitsaufwendig. Außerdem muss systembedingt ein gewisser Abstand zwischen der Halterung und der Bandage vorgehalten werden, was wiederum zu einer Verringerung des Spaltes zwischen Traverse und Bandage und größeren Flächen auf den Abstreifern führt, auf denen sich Bodenmaterial ablagern kann. Obwohl in der Regel eine gute Reinigung der Bandage erzielt wird, kann unter bestimmten Bodenvoraussetzungen das abgestreifte Material nicht problemlos durchfallen. Andererseits kann die Baulänge einer Bodenverdichtungswalze nicht ohne weiteres vergrößert werden, um den Spalt zu verbreitern.Furthermore, it is known to attach flat steel teeth on a spar below the traverse, traverse, spar and roll axis are parallel. The flat steels are held together between two rails in such a way that they can be adjusted individually when worn. For this purpose, the clamping of the two rails must first be solved and then every single tooth or the entire rail must be adjusted. Therefore, this process is very time consuming and labor intensive. In addition, due to the system a certain distance between the holder and the bandage must be maintained, which in turn leads to a reduction of the gap between the traverse and bandage and larger areas on the scrapers, on which soil can be deposited. Although a good cleaning of the bandage is usually achieved, under certain soil conditions the stripped material does not fall through easily. On the other hand, the length of a soil compaction roller can not be increased easily to widen the gap.

Der Erfindung liegt die Aufgabe zugrunde, eine Abstreifvorrichtung und eine Bodenverdichtungswalze der eingangs genannten Art anzugeben, bei welchen ein ausreichend großer Spalt zur Bandage vorhanden ist, ohne die Ablagerfläche und die Baulänge insgesamt zu vergrößern.The invention has for its object to provide a scraper and a soil compaction roller of the type mentioned, in which a sufficiently large gap to the bandage is present, without increasing the deposit area and the overall length.

Diese Aufgabe wird dadurch gelöst, dass der Holm ein Rohr aufweist, und dass die Holmhalterung an mindestens einem Ende ein Paar das Rohr wenigstens teilweise umfassende, lösbar verbundene Halbschalen zum drehfesten und verschiebefesten Verklemmen des Rohres aufweist.This object is achieved in that the spar has a tube, and that the spar holder at least at one end a pair of tube at least partially comprehensive, releasably connected half-shells for non-rotatable and non-sliding jamming of the tube.

Ein Grundgedanke der Erfindung besteht demnach darin, dass das Nachstellen der Abstreiferzähne durch eine Schwenkbewegung des Holms durchgeführt werden kann. Durch die Rotationsbewegung ergibt sich ein langer Zustellweg, so dass die Abstreiferzähne zu einem großen Teil verschleißen können, ohne dass insgesamt die Abstreiferwirkung beeinträchtigt wird. Damit können sehr hohe Standzeiten erzielt werden. Der Abstand des Holms zur Bandage ist bei der Schwenknachstellung unabhängig vom Stellweg und kann daher möglichst klein gemacht werden. Ferner kann der Abstand des Holms zur Traverse unabhängig vom Stellweg möglichst groß gehalten werden. Die Befestigung der Abstreiferzähne ermöglicht einen relativ kleinen Holmdurchmesser, was den Vorteil hat, dass die Fläche relativ klein wird, auf der sich Bodenmaterial ansammeln kann. Damit wird das Zusetzen des Spaltes zwischen Traverse und Bandage auch bei klebrigem Material vermieden.A basic idea of the invention is therefore that the readjustment of the wiper teeth can be carried out by a pivotal movement of the spar. The rotational movement results in a long feed path, so that the wiper teeth can wear to a large extent without the wiper effect being impaired overall. This can be achieved very long service life. The distance of the spar to the bandage is independent of the travel in the swivel adjustment and can therefore be made as small as possible. Furthermore, the distance of the spar to Traverse independent of the travel can be kept as large as possible. The attachment of the scraper teeth allows a relatively small spar diameter, which has the advantage that the area is relatively small on which soil material can accumulate. Thus, the clogging of the gap between Traverse and bandage is avoided even with sticky material.

Bevorzugte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen beschrieben.Preferred embodiments of the invention are described in the dependent claims.

Es ist besonders zweckmäßig, dass der Holm ein Rohr mit rundem, kreisförmigem oder elliptischem Querschnitt ist. Auch können eckige, zum Beispiel dreieckige, viereckige oder polygonale Querschnitte verwendet werden, da sich diese aufgrund der Ecken gut drehfest halten lassen. Bevorzugt weist der Holm aber ein Rohr mit kreisrundem Querschnitt auf, da dieses besonders stabil und verwindungssteif ist.It is particularly expedient that the spar is a tube with a round, circular or elliptical cross-section. It is also possible to use angular, for example triangular, quadrangular or polygonal cross sections, since these can be held well in a rotationally fixed manner due to the corners. Preferably, however, the spar has a tube with a circular cross section, since this is particularly stable and torsionally stiff.

Zudem ist es auch besonders vorteilhaft, dass die Auflagerbereiche der Abstreiferzähne zwei Finger aufweisen, welche den Holm im Bereich eines Kreissegments umgreifen, und dass die Finger am Rohr verschweißt sind. Der runde Querschnitt erleichtert das Durchfallen von Bodenmaterial und kann im Übrigen bei Bedarf auch leicht gereinigt werden. Durch die umgreifenden Finger wird trotz des kleinen Holmquerschnitts eine stabile Befestigung der Abstreiferzähne erreicht.In addition, it is also particularly advantageous that the bearing areas of the scraper teeth have two fingers which engage around the beam in the region of a circle segment, and that the fingers are welded to the pipe. The round cross section facilitates the falling through of soil material and can in Remaining if necessary also be cleaned easily. By embracing fingers, a stable attachment of the wiper teeth is achieved despite the small spar cross-section.

Ein Schweißverzug des Rohres beim Anschweißen der Abstreiferzähne wird dadurch vermieden, dass die Finger symmetrisch winkelversetzt, bevorzugt diametral unter 180°, zueinander am Rohr angeschweißt sind.A welding distortion of the tube when welding the Abstreiferzähne is avoided by the fact that the fingers are symmetrically angularly offset, preferably diametrically below 180 °, welded to each other on the pipe.

Eine besonders einfach herzustellende und leicht handhabbare Befestigung des Holmes besteht darin, das an jedem Rohrende ein Paar Halbschalen zum lösbaren, drehfesten und verschiebefesten Verklemmen des Rohres vorhanden sind. Es können hierzu Standardbauteile verwendet werden. Mit einer derartigen Klemmvorrichtung kann nicht nur die Nachstellung der Abstreiferzähne durch Verschwenken auf einfache Weise durchgeführt werden, sondern es kann auch in Achsrichtung leicht eine Justierung und ein Toleranzausgleich durchgeführt werden.A particularly simple to produce and easy to handle attachment of the spar is that at each end of the pipe a pair of half shells for releasable, non-rotatable and non-slip jamming of the tube are present. Standard components can be used for this purpose. With such a clamping device, not only the adjustment of the wiper teeth can be performed by pivoting in a simple manner, but it can also be carried out in the axial direction easy adjustment and tolerance compensation.

Das Zustellen wird besonders einfach dadurch, dass die Halbschalen miteinander verschraubt sind, und die Schrauben von außen, bevorzugt von unten, gut zugänglich sind.The delivery is particularly simple in that the half-shells are screwed together, and the screws from the outside, preferably from below, are easily accessible.

Es ist zur Erzielung einer großen Klemmkraft auch bei großen Toleranzen vorteilhaft, dass die Halbschalen eines jeden Paares mindestens drei auf den beide Halbschalen verteilte Hervorhebungen zum Erzeugen einer Dreipunktklemmung aufweisen.It is advantageous to achieve a large clamping force, even with large tolerances, that the half-shells of each pair have at least three on the two half-shells distributed emphasis for generating a three-point clamping.

Besonders gute Ergebnisse werden dadurch erzielt, dass jede Halbschale eines jeden Paares mindestens zwei Hervorhebungen zum Erzeugen einer Vierpunktklemmung aufweist.Particularly good results are achieved in that each half-shell of each pair has at least two highlights for generating a four-point clamping.

Die Abstreiferzähne sind bevorzugt geschmiedet und an ihren Enden mit Verschleißkappen versehen.The wiper teeth are preferably forged and provided at their ends with wear caps.

Nachfolgend wird die Erfindung anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels weiter erläutert. Es zeigen schematisch:

Fig. 1
einen Querschnitt durch eine Bodenverdichtungswalze mit Stampffüßen;
Fig. 2
eine Einzelheit der Bodenverdichtungswalze gemäß Fig.1 in vergrößerter Darstellung
Fig. 3
eine Einzelheit der Bodenverdichtungswalze gemäß Fig.1 in vergrößerter Darstellung; und
Fig. 4
eine Einzelheit der Bodenverdichtungswalze gemäß Fig.1 in einem fortgeschrittenen Verschleißzustand
The invention will be further explained with reference to an embodiment shown in the drawings. They show schematically:
Fig. 1
a cross section through a soil compaction roller with pad feet;
Fig. 2
a detail of the soil compaction roller according to Fig.1 in an enlarged view
Fig. 3
a detail of the soil compaction roller according to Fig.1 in an enlarged view; and
Fig. 4
a detail of the soil compaction roller according to Fig.1 in an advanced state of wear

In Fig. 1 veranschaulicht eine quer zu ihrer Achse geschnittene Bodenverdichtungswalze 11 mit über die Bandage 8 verteilten Stampffüßen 12. Die Bodenverdichtungswalze 11 ist in einem Rahmen aus zwei Wangen 6, von welchen in der Darstellung nur eine sichtbar ist, und zwei achsparallelen Traversen 7, 7' angeordnet.In Fig. 1 illustrates a bottom compaction roller 11 cut transversely to its axis with stamp feet 12 distributed over the bandage 8. The soil compaction roller 11 is arranged in a frame of two cheeks 6, of which only one is visible in the illustration, and two axially parallel traverses 7, 7 '.

Zur Reinigung der Bandage 8 und der Zwischenräume sind zwischen den Stampffüßen 12 bei dem dargestellten Beispiel zwei Abstreifvorrichtungen 13, 13' vorhanden, die jeweils parallel zu den Traversen 7, 7' und unter Bildung jeweils eines Spaltes 14, 14' unterhalb von diesen verlaufen. Wie auch aus der vergrößerten Darstellungen gemäß Fig.2, Fig. 3 und Fig. 4 ersichtlich ist, weisen die Abstreifvorrichtungen 13, 13' jeweils einen als Rohr 2 mit kreisrundem Querschnitt ausgebildeten Holm auf, der als Träger für massive, geschmiedete Abstreiferzähne 1 dient. Diese ragen radial in die Zwischenräume zwischen den Stampffüßen 12, wobei sie in dem in Fig. 1 dargestellten Zustand schräg nach unten gerichtet sind.To clean the bandage 8 and the interspaces, two stripping devices 13, 13 'are present between the pad feet 12 in the illustrated example, each extending parallel to the trusses 7, 7' and forming a respective gap 14, 14 'below them. As well as from the enlarged illustrations according to Fig.2 . FIG. 3 and FIG. 4 it can be seen, the stripping devices 13, 13 'each have a designed as a tube 2 with a circular cross section spar, which serves as a carrier for solid, forged scraper teeth 1. These protrude radially into the spaces between the pad feet 12, wherein they are in the in Fig. 1 shown state are directed obliquely downwards.

Wie an dem in Fig. 2 gezeigten zwischen den Holmhalterungen 15 liegenden Querschnitt des Holms verdeutlicht wird, weist jeder Zahn 1 in seinem Auflagerbereich und Fußpunkt zwei Finger 18 auf, welche das Rohr 2 im Bereich eines Kreissegments von beispielsweise ca. 180° umgreifen. Die Finger 18 sind an symmetrisch diametral um etwa 180° winkelversetzt liegenden Schweißnähten 10 am Rohr 2 angeschweißt.As at the in Fig. 2 shown lying between the Holmhalterungen 15 cross section of the spar is illustrated, each tooth 1 in its support area and base two fingers 18, which surround the tube 2 in the region of a circular segment, for example, about 180 °. The fingers 18 are welded to the pipe 2 at symmetrically diametrically opposed by approximately 180 ° lying welds 10.

Das Rohr 2 ist an seinen beiden Enden in einer wahlweise verstellbaren Holmhalterung 15 lösbar gehalten, die ein Nachstellen der Abstreiferzähne 1 an der Bodenverdichtungswalze 11 durch Verschwenken des Rohres 2 in Pfeilrichtung 16 ermöglicht. Die Schwenkachse liegt im Schwerpunkt des Trägerprofils parallel zur Achse der Bodenverdichtungswalze 11. Die Holmhalterungen 15 sind an den Wangen 6 beispielsweise durch Verschrauben befestigt.The tube 2 is releasably held at its two ends in an optionally adjustable Holmhalterung 15, which allows an adjustment of the Abstreiferzähne 1 on the soil compaction roller 11 by pivoting the tube 2 in the direction of arrow 16. The pivot axis lies in the center of gravity of the carrier profile parallel to the axis of the soil compaction roller 11. The Holmhalterungen 15 are fixed to the cheeks 6, for example by screwing.

Die Rohre 2 sind mit minimalem Abstand zur Bandage 8 angeordnet, so dass sie die Baulänge des Rahmens nicht vergrößern. Außerdem verlaufen sie mit einer ausreichend großen Spaltbreite a parallel zu den Traversen 7, 7', so dass das Durchfallen und Ableiten von abgestreiftem Bodenmaterial zum Beispiel gemäß Pfeil 17 zuverlässig erfolgt. Der Rohrdurchmesser und die Fußbereiche der Abstreiferzähne 1 haben einen geringen Durchmesser und bilden somit eine relativ kleine Fläche mit einer wirksamen Breite b, so dass sich dort gegebenenfalls nur wenig Bodenmaterial ablagern kann.The tubes 2 are arranged at a minimum distance from the bandage 8, so that they do not increase the overall length of the frame. In addition, they run with a sufficiently large gap width a parallel to the trusses 7, 7 ', so that the falling through and discharge of stripped soil material, for example according to arrow 17 is reliable. The tube diameter and the foot areas of the scraper teeth 1 have a small diameter and thus form a relatively small area with an effective width b, so that there may possibly be little soil material deposited there.

Die Holmhalterungen 15 weisen jeweils zwei Halbschalen 4, 5 auf, die das Rohr 2 umfassen und mittels Schrauben 3 lösbar zur Bildung einer Klemmverbindung verbunden sind. An den Innenflächen jeder Halbschale 4, 5 sind zwei beispielsweise um 90° versetzte Hervorhebungen 9 vorhanden, so dass eine gute Vierpunktklemmung erreicht wird. Bei angezogenen Schrauben 3 ist das Rohr 2 drehfest und schiebefest eingespannt. Damit ist die Position und Ausrichtung der Abstreiferzähne 1 fest. Werden die Schrauben 3 gelöst, kann das Rohr 2 zum radialen und axialen Nachstellen der Abstreiferzähne 1 verschwenkt und axial verschoben werden. Dieses Zustellen ist einfach, da die Schrauben 3 gut von unten zugänglich sind.The Holmhalterungen 15 each have two half-shells 4, 5, which comprise the tube 2 and are releasably connected by means of screws 3 to form a clamping connection. On the inner surfaces of each half-shell 4, 5 are two, for example, offset by 90 ° emphasis 9 available, so that a good four-point clamping is achieved. When tightened screws 3, the tube 2 is rotatably and non-slip clamped. Thus, the position and orientation of the wiper teeth 1 is fixed. If the screws 3 are released, the tube 2 can be pivoted for radial and axial readjustment of the wiper teeth 1 and moved axially. This delivery is easy because the screws 3 are well accessible from below.

Bei Verschleiß der Abstreiferzähne 1 gemäß Fig. 4 erfolgt ein Nachstellen der Zähne durch Verschwenken des Rohrs 2 zur Bandage 8 hin, wobei sich wegen des Schwenkprinzips ein langer Zustellweg ergibt. Damit kann der Verschleiß bis auf eine Zahnlänge ausgeglichen werden, die dem Abstand des Rohres 2 von der Bandage 8 entspricht, ohne dass die Abstreiferfunktion beeinträchtigt wird. Diese maximale Zustellung ist in Fig. 4 veranschaulicht.In case of wear of the wiper teeth 1 according to Fig. 4 An adjustment of the teeth by pivoting the tube 2 to the bandage 8 out, resulting in a long Zustellweg because of the pivoting principle. Thus, the wear can be compensated to a tooth length corresponding to the distance of the tube 2 from the bandage 8, without the Abstreiferfunktion is impaired. This maximum delivery is in Fig. 4 illustrated.

Claims (12)

  1. Scraping device (13, 13') for a soil compacting roller (11) with tamping feet (12), with a cross member on which scraper teeth (1) are arranged, and with a selectively adjustable cross member fixing device (15), which makes it possible to readjust the scraper teeth (1) on the soil compacting roller (11), characterized in that the cross member exhibits a tube (2) and that at least one end of the cross member fixing device (15) exhibits a pair of half shells (4, 5) that at least partially envelop the tube (2) and are detachably connected for clamping the tube (2) in a non-rotatable and immovable manner.
  2. Scraping device according to claim 1, characterized in that the cross member exhibits a tube (2) with a circular cross section.
  3. Scraping device according to claim 1 or 2, characterized in that the bearing areas of the scraper teeth (1) exhibit two fingers (18) that envelop the cross member in the area of a circular segment and in that the fingers are welded to the tube (2).
  4. Scraping device according to claim 3, characterized in that the fingers are welded on the tube (2) relative to each other at a symmetrically offset angle, preferably diametrically below 180°.
  5. Scraping device according to one of the preceding claims, characterized in that each end of the tube exhibits a pair of half shells (4, 5) for the purpose of clamping the tube (2) in a detachable, non-rotatable and immovable manner.
  6. Scraping device according to one of the preceding claims, characterized in that the half shells (4, 5) of each pair exhibit at least three protuberances (9) distributed over both half shells (4, 5) for producing a three-point clamping.
  7. Scraping device according to claim 6, characterized in that each half shell (4, 5) of each pair exhibits two protuberances (9) for producing a four-point clamping.
  8. Scraping device according to one of the preceding claims, characterized in that the half shells (4, 5) of each pair are connected with screws (3), which are freely accessible for loosening and tightening.
  9. Scraping device according to one of the preceding claims, characterized in that the teeth (1) are forged.
  10. Scraping device according to one of the preceding claims, characterized in that the ends of the teeth (1) are provided with wear caps.
  11. Soil compacting roller (11) with tamping feet (12), with a traverse (7, 7') and a scraping device (13, 13') according to claim 1, characterized in that the teeth (1) in a new condition are longer than the distance between the cross member and a roller drum (8) when the cross member is mounted on a soil compacting roller (11).
  12. Soil compacting roller (11) with tamping feet (12), with a traverse (7, 7') and a scraping device (13, 13') according to claim 1, characterized in that the cross member is arranged below the traverse (7, 7') at a distance that an ejection gap (14, 14') is formed and in that the scraper teeth (1) face away from the traverse (7, 7').
EP04021218A 2003-10-02 2004-09-07 Cleaning scraper for a soil compaction roller and soil compaction roller Active EP1520935B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10345973 2003-10-02
DE10345973 2003-10-02
DE102004043038 2004-09-06
DE102004043038A DE102004043038A1 (en) 2003-10-02 2004-09-06 Scraper for a soil compaction roller and soil compaction roller with such a scraper device

Publications (3)

Publication Number Publication Date
EP1520935A2 EP1520935A2 (en) 2005-04-06
EP1520935A3 EP1520935A3 (en) 2006-02-08
EP1520935B1 true EP1520935B1 (en) 2011-01-26

Family

ID=34315007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04021218A Active EP1520935B1 (en) 2003-10-02 2004-09-07 Cleaning scraper for a soil compaction roller and soil compaction roller

Country Status (3)

Country Link
US (1) US7044683B2 (en)
EP (1) EP1520935B1 (en)
CN (1) CN1326439C (en)

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US8004106B2 (en) * 2010-08-31 2011-08-23 General Electric Company Yaw bearing cleaning assembly for wind turbine
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DE102014118988A1 (en) * 2014-12-18 2016-07-07 Hamm Ag Soil preparation machine, in particular soil compactor
CN107142820A (en) * 2017-06-05 2017-09-08 金乡县华驰工程机械有限公司 A kind of road roller is two-way to scrape mud cleaning device
RU2681444C1 (en) * 2017-10-30 2019-03-06 Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный технический университет" Roll stripper
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CN109208436B (en) * 2018-09-28 2020-12-04 泉州台商投资区嘉尚网络科技有限公司 Ground multistage adjustment type embossing device for road construction
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Also Published As

Publication number Publication date
EP1520935A2 (en) 2005-04-06
US7044683B2 (en) 2006-05-16
CN1326439C (en) 2007-07-18
EP1520935A3 (en) 2006-02-08
CN1602653A (en) 2005-04-06
US20050117971A1 (en) 2005-06-02

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