EP0898020B1 - Motor driven ground compactor - Google Patents

Motor driven ground compactor Download PDF

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Publication number
EP0898020B1
EP0898020B1 EP98108471A EP98108471A EP0898020B1 EP 0898020 B1 EP0898020 B1 EP 0898020B1 EP 98108471 A EP98108471 A EP 98108471A EP 98108471 A EP98108471 A EP 98108471A EP 0898020 B1 EP0898020 B1 EP 0898020B1
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EP
European Patent Office
Prior art keywords
roller
accessory ring
ring
motor
accessory
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
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EP98108471A
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German (de)
French (fr)
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EP0898020A1 (en
Inventor
Karl-Hermann Ing. Grad. Mötz
Herbert Roos
Richard Steinadler
Horst Wöll
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Bomag GmbH and Co OHG
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Bomag GmbH and Co OHG
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Publication of EP0898020A1 publication Critical patent/EP0898020A1/en
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    • 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
    • E02D3/032—Trench rollers

Definitions

  • the invention relates to a motorized soil compaction device, in particular a trench roller, with at least one roller traveling over the ground and compressing it.
  • Such soil compactors are in use in many embodiments throughout the world.
  • a large road roller with three roll bandages is known, in which one of the two outboard rolls is replaced by a height-adjustable narrowing unit with twin tires which can be lowered into a trench.
  • the road roller above the trench travels along its edge, while the compaction unit in the trench compresses the trench bottom above the weight of the roller. In other words, the compaction width of the road roller is reduced to the trench width.
  • the soil compaction devices according to the invention should be characterized by a cost-effective and particularly important construction site area robust structure.
  • roller has at least one receiving device for receiving a frontally arranged, coaxial mounting ring is designed to increase the compression width as a further role, wherein the mounting ring releasably with the role form and / or frictionally is connectable.
  • the mounting ring as defined by claim 12, a quick conversion on the site is made possible.
  • the mounting ring itself not only weighs much less than the previously completely replaced roles, he can also attach much easier than this attach to the soil compactor or solve this.
  • the trench roller according to the invention is thus universally suitable for a wide variety of purposes.
  • attachment rings saves weight and volume during transport of the soil compaction device.
  • the receiving device may consist of one or more screws in the simplest case, which are inserted through the mounting ring and bolted to the roller.
  • the hitch has at least one centering surface, in particular a conical surface, for centering the attachment ring.
  • the cultivation is much easier because you can simply alsstekken the attachment ring on these centering so that it is in the correct position and only needs to be twisted and / or screwed to attach.
  • the mounting ring has the same outer diameter as the roller.
  • the attachment ring has a larger or smaller diameter or that its diameter increases or decreases in the direction away from the roller, if appropriate conically. This can be useful, for example, in the case of floor surfaces to be profiled, or even if a multistage or variable compaction adapted to the already existing degree of compaction of the floor is desired.
  • the roll sinks more or less into the ground, so that at the beginning of compaction, a larger and towards the end of a smaller footprint of the role acts on the ground. Accordingly, the surface force occurring increases during the work process.
  • the positive engagement can be achieved by projections on the outer ring and / or the roller, which protrude into recesses of the roller and / or the outer ring.
  • projections which are attached to the roller should not protrude axially beyond the roll width effective for compaction, so that it can compact up to boundary walls. Moreover, this is also a satisfactory solution in terms of safety.
  • the projections and depressions may be axially aligned, so that the mounting ring must only be plugged and screwed.
  • a particularly stable connection between the attachment ring and the roller results when the positive engagement is achieved by such projections on the attachment ring and / or the roller, which engage in rotation in corresponding undercuts of the roller and / or the attachment ring.
  • brace attachment ring and roller against each other For secure attachment, it is generally useful to brace attachment ring and roller against each other.
  • this bracing is preferably carried out axially in the direction away from the roll. It can be realized particularly easily by a central clamping screw.
  • the attachment ring has radial clearance and either the attachment ring radially, but not circumferentially displaceable elements are arranged, which are pressed by screws against or in recesses of the outer cylinder of the roller.
  • the mounting ring has elastic segments, which are pulled by screws to the outside and thus cause a radial clamping. In both cases, the screws can attack radially from the outside, if they are appropriately sunk between the studs.
  • the attachment ring has a width of 100, 200 or 400 mm.
  • attachment rings For a larger overall width, several attachment rings can be joined together axially.
  • at least the inner mounting rings must have a receiving device for receiving a further coaxial mounting ring to be arranged on the front side to further increase the compression width.
  • the mounting ring may have means corresponding to the receiving device of the roller. So he wears suitably fasteners for its mounting on the roller and / or a centering ring on its side facing the roller end.
  • This centering ring can also be arranged well on the hub, especially if it is not centered in the mounting ring, but is offset along the ring and roller axis somewhat in the direction of the role out.
  • the mounting ring consists of a cylindrical ring without hub and spokes, which is connected only at the outer periphery with the roller.
  • FIG. 1 shows a roller 1 fastened to a motor-driven compacting device (not shown). It is cantilevered by being flanged to the engine via a bearing journal 2. At its outer periphery, the roller carries numerous, arranged in rows of teeth 3, which engage in compression in the ground.
  • the roller 1 has a receiving device for a mounting ring 5.
  • this recording device is composed of several elements. These are all arranged on the flying bearing 2 opposite end face of the roller 1.
  • the first element of the receiving device is a centering cone 4a, on which the attachment ring 5 is pushed. In this case, centering surfaces of the cone 4a abut corresponding mating surfaces of a centering ring 6 of the attachment ring 5.
  • the axis of the cone 4a is the roller axis A and its diameter is in the illustrated embodiment about 1/3 of the roller diameter.
  • the centering cone 4 a is mounted on the journal 2 by means of screws 2 a, wherein the screw heads are sunk completely in the centering cone, so that it forms a plane, radial bearing surface for the end face of the hub 10 of the mounting ring 5.
  • the second elements of the receiving device form fastening elements in the form of three screws 4b with corresponding mating threads, which are expediently arranged in the cone 4a.
  • the third element of the receiving device form recesses 4 c, which are arranged on the end face of the roller 1 and engage in the projections 7 of the mounting ring 5.
  • roller 1 and attachment ring 5 rotatably connected to each other.
  • the recesses and projections are radially outwardly positioned as far as possible, here even on the outer cylinder of roller 1 and mounting ring. 5
  • the outer circumference of the mounting ring 5 is advantageously designed as the outer circumference of the roller 1.
  • 5 teeth 8 are therefore also arranged on the mounting ring.
  • the teeth lying on the outer edge of the attachment ring 5 are beveled towards this edge.
  • FIG. 2 shows the outer end face of the attachment ring 5.
  • the arrangement of the staggered teeth 8 can be seen particularly well.
  • the second embodiment shown in Figure 3 differs from the first essentially by a differently configured receiving device.
  • the roller 21 has a cone or cylinder 24a, which is enclosed by a connecting ring 26 of the mounting ring 25.
  • the second element of the receiving device here consists of undercuts, which are formed behind projections 24b on the front-side outer circumference of the roller 21 and are braced against the projections 30 of the outer ring 25.
  • the outer ring 25 is inserted in this embodiment on the cone 24a and then rotated about the axis A, that the projections 30 of the outer ring 25 behind the lugs 24b of the roller 21 pass. Thereafter, a central screw 31 is tightened, which passes on the axis A in a thread through the mounting ring 25 and ends on the front side of the truncated cone 24 a of the roller 21. As a result, the mounting ring 25 is braced in the direction away from the roller 21 against this by the corresponding surfaces of the projections 30 and lugs 24b are pressed against each other.
  • the mutually braced surfaces of the projections 30 and lugs 24b are advantageously profiled in the circumferential direction or limited by terminal stops in the circumferential direction to achieve a positive connection by a rotationally fixed connection.
  • FIG. 4 shows the attachment ring 25 from its outer end face.
  • the position of the three lugs 24b of the role can be 21 and the three projections 30 of the mounting ring 25 recognize particularly well.
  • FIG. 5 shows an embodiment which does not require centering on the roller hub and without a conical centering cone. Rather, a cylindrical centering of the attachment ring 45 takes place on the roller 41.
  • the roller 41 on the side facing away from the drive of its outer cylinder on the inside of a region which serves as a centering sleeve 44a.
  • radial bores 44c are provided in the region or close to the centering sleeve 44a in the outer cylinder of the roller 41.
  • the centering surface acts as a guide for an inner ring 52 projecting from the attachment ring 45 into the outer cylinder of the roller 41.
  • Through these screws 44b are inserted and bolted with tabs 46.
  • the tabs 46 are potted with the mounting ring 45 and extend from this coming about a few inches along the centering sleeve 44a on the inside. By tightening the screws 44b, the tabs 46 are pressed firmly outward against the centering sleeve 44a and so clamped attachment ring 45 and roller 41 radially together.
  • 46 axial slots 47 are arranged in the outer cylinder of the mounting ring 45 to increase the mobility of the tabs.
  • the slots 47 extend approximately over half the width of the mounting ring 45 and limit the tabs 46 laterally.
  • the tabs 46 are integrally connected to the mounting ring 45.
  • FIG. 6 shows the arrangement of a plurality of tabs 46, which can be distributed over the circumference in the exemplary embodiment, on the attachment ring 45.
  • connection can also be made by clamping sleeves, which act on terminals and shearing.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Agronomy & Crop Science (AREA)
  • Civil Engineering (AREA)
  • Soil Sciences (AREA)
  • Soil Working Implements (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Compressor (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Road Paving Machines (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The settlement device comprises of compacting rollers (1,21,41) that have, at least, one receiver device for receipt of the face side of assigned coaxial extension rings (5,25,45) to increase the compaction width. The extension ring is detachably connectable from the rollers and/or friction. The receiver device may have at least one centring surface, esp. a conical surface (4a,24a,44a), for centring of the extension ring. The extension ring and/or the rollers may have overbalancing axially oriented projections (7,46) which may sit in the recesses (4c) of the rollers and/or project in the extension ring.

Description

Die Erfindung betrifft ein motorbetriebenes Bodenverdichtungsgerät, insbesondere eine Grabenwalze, mit mindestens einer über den Boden fahrenden und diesen verdichtenden Rolle.The invention relates to a motorized soil compaction device, in particular a trench roller, with at least one roller traveling over the ground and compressing it.

Derartige Bodenverdichtungsgeräte sind in zahlreichen Ausführungsformen überall auf der Welt im Einsatz. Aus der FR 1 372 592 ist eine große Straßenwalze mit drei Walzenbandagen bekannt, bei der eine der beiden außen gelegenen Walzen bandagen durch eine höhenverstellbare und in einen Graben absenkbare schmale Verdichtungseinheit mit Zwillingsbereifung ersetzt wird. Zur Verdichtung des Grabenbodens fährt man mit der Straßenwalze oberhalb des Grabens an dessen Rand entlang, während die Verdichtungseinheit unten im Graben über das Gewicht der Walze den Grabenboden verdichtet Es wird mit anderen Worten die Verdichtungsbreite der Straßenwalze auf die Grabenbreite verringert.Such soil compactors are in use in many embodiments throughout the world. From FR 1 372 592 a large road roller with three roll bandages is known, in which one of the two outboard rolls is replaced by a height-adjustable narrowing unit with twin tires which can be lowered into a trench. For compaction of the trench bottom, the road roller above the trench travels along its edge, while the compaction unit in the trench compresses the trench bottom above the weight of the roller. In other words, the compaction width of the road roller is reduced to the trench width.

Man hat daher zur Grabenverdichtung deutlich schmalere Bodenverdichtungsgeräte entwickelt, die insgesamt in den Gräben fahren können. Dabei wird häufig eine Rollen- bzw. Bandagenbreite von 610 mm (24") bis 650 mm gefordert. Solche Grabenwalzen werden jedoch auch außerhalb von Gräben zur Flächenverdichtung eingesetzt. Hier ergibt sich allerdings der Nachteil, dass Grabenwalzen mit 610 mm Rollenbreite bei der Flächenverdichtung zum Umkippen neigen. Dies gilt vor allem bei ferngesteuertem Einsatz.It has therefore been developed for grave compaction significantly narrower soil compaction equipment that can drive in total in the trenches. A trench or drum width of 610 mm (24 ") to 650 mm is often required, but such trench rollers are also used outside of trenches for surface compaction, but this has the disadvantage that trench rollers with a roller width of 610 mm are used for compaction This is especially true for remote controlled use.

Daher werden bei der Flächenverdichtung Rollenbreiten von 850 oder 1050 mm bevorzugt. Hierzu ist dann entweder, was besonders kostenintensiv ist, ein zweites Bodenverdichtungsgerät mit der größeren Rollenbreite nötig, oder es werden die schmaleren Bandagen von der Grabenwalze abmontiert und durch breitere ersetzt. Das letztgenannte Verfahren ist allerdings ausgesprochen umständlich: Zum einen müssen zahlreiche Schrauben gelöst und nach Ansetzen der breiteren Bandagen wieder befestigt werden. Zum anderen sind Bandagen wegen ihres hohen Gewichtes schlecht zu handhaben.For this reason, roll widths of 850 or 1050 mm are preferred for surface compaction. This is then either, which is particularly costly, a second soil compaction device with the larger roll width needed, or it will be the narrower bandages removed from the trench roller and replaced by wider. The latter method, however, is extremely cumbersome: On the one hand Many screws must be loosened and re-attached after applying the wider bandages. On the other hand bandages are difficult to handle because of their heavy weight.

Von den genannten Nachteilen ausgehend liegt der Erfindung die Aufgabe zugrunde, den Einsatzbereich sowie die Kippsicherheit von Bodenverdichtungsgeräten mit schmalen Rollen zu erhöhen, ohne umständlich die Bandagen austauschen zu müssen. Außerdem sollen sich die erfindungsgemäßen Bodenverdichtungsgeräte durch einen kostengünstigen und im Baustellenbereich besonders wichtigen robusten Aufbau auszeichnen.Based on the disadvantages mentioned above, it is an object of the invention to increase the field of application and the stability of soil compaction equipment with narrow rollers without awkward to exchange the bandages. In addition, the soil compaction devices according to the invention should be characterized by a cost-effective and particularly important construction site area robust structure.

Diese Aufgabe wird gemäß Anspruch 1 dadurch gelöst, daß die Rolle mindestens eine Aufnahmevorrichtung aufweist, für die Aufnahme eines stirnseitig anzuordnenden, koaxialen Anbauringes der zur Erhöhung der Verdichtungsbreite als weitere Rolle ausgestaltet ist, wobei der Anbauring lösbar mit der Rolle form- und/oder reibschlüssig verbindbar ist.This object is achieved according to claim 1, characterized in that the roller has at least one receiving device for receiving a frontally arranged, coaxial mounting ring is designed to increase the compression width as a further role, wherein the mounting ring releasably with the role form and / or frictionally is connectable.

Durch die Verwendung eines Anbauringes, wie durch den Anspruch 12 definiert, wird ein schneller Umbau auf der Baustelle ermöglicht. Der Anbauring selbst wiegt nicht nur wesentlich weniger als die bisher komplett auszutauschenden Rollen, er läßt sich darüber hinaus auch wesentlich einfacher als diese am Bodenverdichtungsgerät befestigen bzw. von diesem lösen. Die erfindungsgemäße Grabenwalze ist somit universell für unterschiedlichste Einsatzzwecke geeignet.By the use of a mounting ring as defined by claim 12, a quick conversion on the site is made possible. The mounting ring itself not only weighs much less than the previously completely replaced roles, he can also attach much easier than this attach to the soil compactor or solve this. The trench roller according to the invention is thus universally suitable for a wide variety of purposes.

Weiterhin spart die Verwendung von Anbauringen Gewicht und Volumen beim Transport des Bodenverdichtungsgerätes.Furthermore, the use of attachment rings saves weight and volume during transport of the soil compaction device.

Die Aufnahmevorrichtung kann im einfachsten Fall aus einer oder mehreren Schrauben bestehen, die durch den Anbauring hindurchgesteckt und mit der Rolle verschraubt werden.The receiving device may consist of one or more screws in the simplest case, which are inserted through the mounting ring and bolted to the roller.

Vorteilhaft ist es aber, wenn die Anbauvorrichtung mindestens eine Zentrierfläche, insbesondere eine Kegelfläche, zum Zentrieren des Anbauringes aufweist. Hierdurch wird der Anbau wesentlich erleichtert, da man den Anbauring einfach auf diese Zentrierflächen aufstekken kann, so daß er sich in der richtigen Position befindet und zum Befestigen nur noch verdreht und/oder angeschraubt werden muß.It is advantageous, however, if the hitch has at least one centering surface, in particular a conical surface, for centering the attachment ring. As a result, the cultivation is much easier because you can simply aufstekken the attachment ring on these centering so that it is in the correct position and only needs to be twisted and / or screwed to attach.

Vorzugsweise hat der Anbauring den gleichen Außendurchmesser wie die Rolle. Für Spezialanwendungen kann es aber auch sinnvoll sein, daß der Anbauring einen größeren bzw. kleineren Durchmesser hat oder daß sein Durchmesser in Richtung von der Rolle weg, gegebenenfalls konisch, zu- oder abnimmt. Dies kann zum Beispiel bei zu profilierenden Bodenoberflächen sinnvoll sein, oder auch wenn eine mehrstufige bzw. variable, dem bereits vorhandenen Verdichtungsgrad des Bodens angepaßte Verdichtung erwünscht ist. Je nachdem wie hoch die Verdichtung ist, sinkt die Rolle dann mehr oder weniger in den Untergrund ein, so daß zu Beginn der Verdichtung eine größere und gegen Ende eine kleinere Aufstandsfläche der Rolle auf den Boden einwirkt. Entsprechend vergrößert sich die auftretende Flächenkraft während des Arbeitsvorgangs.Preferably, the mounting ring has the same outer diameter as the roller. For special applications, it may also be useful in that the attachment ring has a larger or smaller diameter or that its diameter increases or decreases in the direction away from the roller, if appropriate conically. This can be useful, for example, in the case of floor surfaces to be profiled, or even if a multistage or variable compaction adapted to the already existing degree of compaction of the floor is desired. Depending on how high the compaction is, the roll then sinks more or less into the ground, so that at the beginning of compaction, a larger and towards the end of a smaller footprint of the role acts on the ground. Accordingly, the surface force occurring increases during the work process.

Der Formschluß kann durch Vorsprünge am Außenring und/oder der Rolle erzielt werden, die in Vertiefungen der Rolle und/oder des Außenringes hineinragen. Dabei sollten Vorsprünge, die an der Rolle angebracht sind, nicht axial über die zur Verdichtung wirksame Rollenbreite vorstehen, damit man bis an Begrenzungsmauern heran verdichten kann. Außerdem ist dies auch unter Sicherheitsaspekten eine befriedigende Lösung.The positive engagement can be achieved by projections on the outer ring and / or the roller, which protrude into recesses of the roller and / or the outer ring. In this case, projections which are attached to the roller should not protrude axially beyond the roll width effective for compaction, so that it can compact up to boundary walls. Moreover, this is also a satisfactory solution in terms of safety.

Die Vorsprünge und Vertiefungen können axial ausgerichtet sein, so daß der Anbauring nur aufgesteckt und verschraubt werden muß.
Eine besonders stabile Verbindung zwischen Anbauring und Rolle ergibt sich aber, wenn der Formschluß durch solche Vorsprünge am Anbauring und/oder der Rolle erzielt wird, die bei Verdrehung in entsprechende Hinterschneidungen der Rolle und/oder des Anbauringes eingreifen. In entsprechender Weiterbildung bietet es sich an, die Aufnahmevorrichtung als Bajonettverschluß auszubilden.The projections and depressions may be axially aligned, so that the mounting ring must only be plugged and screwed.
However, a particularly stable connection between the attachment ring and the roller results when the positive engagement is achieved by such projections on the attachment ring and / or the roller, which engage in rotation in corresponding undercuts of the roller and / or the attachment ring. In a corresponding development, it makes sense to form the receiving device as a bayonet lock.

Zur sicheren Befestigung ist es allgemein sinnvoll, Anbauring und Rolle gegeneinander zu verspannen. Bei der vorgenannten Verwendung von Hinterschneidungen bzw. eines Bajonettverschlußes ist dieses Verspannen vorzugsweise axial in Richtung von der Rolle weg vorzunehmen. Es läßt sich besonders einfach durch eine zentrale Spannschraube realisieren.For secure attachment, it is generally useful to brace attachment ring and roller against each other. In the above-mentioned use of undercuts or a bayonet lock this bracing is preferably carried out axially in the direction away from the roll. It can be realized particularly easily by a central clamping screw.

Neben einer axialen Verspannung ist aber auch eine radiale Verspannung denkbar, die vorteilhaft an der Innenseite des Außenzylinders der Rolle angreift. Dazu hat der Anbauring radiales Spiel und entweder sind am Anbauring radial, aber nicht in Umfangsrichtung verschiebbare Elemente angeordnet, die durch Schrauben gegen oder in Ausnehmungen des Außenzylinders der Rolle gepreßt werden. Oder der Anbauring weist elastische Segmente auf, die durch Schrauben nach außen gezogen werden und damit eine radiale Klemmung verursachen. In beiden Fällen können die Schrauben radial von außen angreifen, wenn man sie entsprechend zwischen den Stollen versenkt.In addition to an axial strain but also a radial strain is conceivable, which advantageously acts on the inside of the outer cylinder of the roller. For this purpose, the attachment ring has radial clearance and either the attachment ring radially, but not circumferentially displaceable elements are arranged, which are pressed by screws against or in recesses of the outer cylinder of the roller. Or the mounting ring has elastic segments, which are pulled by screws to the outside and thus cause a radial clamping. In both cases, the screws can attack radially from the outside, if they are appropriately sunk between the studs.

Gemäß der häufigsten Einsatzformen hat der Anbauring eine Breite von 100, 200 oder 400 mm.According to the most common application forms, the attachment ring has a width of 100, 200 or 400 mm.

Für eine größere Gesamtbreite können auch mehrere Anbauringe axial aneinandergefügt werden. Dazu müssen zumindest die inneren Anbauringe eine Aufnahmevorrichtung für die Aufnahme eines weiteren stirnseits anzuordnenden, koaxialen Anbauringes zur weiteren Erhöhung der Verdichtungsbreite aufweisen.For a larger overall width, several attachment rings can be joined together axially. For this purpose, at least the inner mounting rings must have a receiving device for receiving a further coaxial mounting ring to be arranged on the front side to further increase the compression width.

Bei größeren Anbauringen liegt es im Rahmen der Erfindung, daß sie aus einzelnen in Umfangsrichtung aufeinanderfolgenden Segmenten aufgebaut sind, die jeweils so leicht sind, daß sie von einer Person Stück für Stück an der Rolle befestigt werden können.For larger mounting rings, it is within the scope of the invention that they are composed of individual circumferentially successive segments, each of which are so light that they can be attached by a person piece by piece on the role.

Zur leichteren Montage kann der Anbauring über mit der Aufnahmevorrichtung der Rolle korrespondierende Einrichtung verfügen. So trägt er zweckmäßigerweise Befestigungselemente zu seiner Montage an der Rolle und/oder einen Zentrierring an seiner der Rolle zugewandten Stirnseite. Dieser Zentrierring läßt sich auch gut an der Nabe anordnen, insbesondere wenn diese sich nicht mittig im Anbauring sitzt, sondern entlang der Ring- und Rollenachse etwas in Richtung auf die Rolle hin versetzt ist.For ease of assembly, the mounting ring may have means corresponding to the receiving device of the roller. So he wears suitably fasteners for its mounting on the roller and / or a centering ring on its side facing the roller end. This centering ring can also be arranged well on the hub, especially if it is not centered in the mounting ring, but is offset along the ring and roller axis somewhat in the direction of the role out.

Im einfachsten Fall besteht der Anbauring aus einem zylindrischen Ring ohne Nabe und Speichen, der lediglich am äußeren Umfang mit der Rolle verbunden wird.In the simplest case, the mounting ring consists of a cylindrical ring without hub and spokes, which is connected only at the outer periphery with the roller.

Weitere erfindungswesentliche Merkmale und Vorteile der Vorrichtung ergeben sich aus der nachfolgenden Beschreibung dreier Ausführungsbeispiele anhand der Zeichnung; dabei zeigt

Figur 1
ein erstes Ausführungsbeispiel im Axialschnitt;
Figur 2
das erste Ausführungsbeispiel von der Seite;
Figur 3
ein zweites Ausführungsbeispiel im Axialschnitt;
Figur 4
das zweite Ausführungsbeispiel von der Seite;
Figur 5
ein drittes Ausführungsbeispiel im Axialschnitt; und
Figur 6
das dritte Ausführungsbeispiel von der Seite.
Other inventive features and advantages of the device will become apparent from the following description of three embodiments with reference to the drawing; shows
FIG. 1
a first embodiment in axial section;
FIG. 2
the first embodiment from the side;
FIG. 3
a second embodiment in axial section;
FIG. 4
the second embodiment from the side;
FIG. 5
a third embodiment in axial section; and
FIG. 6
the third embodiment of the page.

In Figur 1 erkennt man eine an einem nicht weiter dargestellten motorbetriebenen Verdichtungsgerät befestigte Rolle 1. Sie ist fliegend gelagert, indem sie über einen Lagerzapfen 2 an den Motor angeflanscht wird. An ihrem äußeren Umfang trägt die Rolle zahlreiche, in Reihen angeordnete Zähne 3, die beim Verdichten in den Untergrund eingreifen.FIG. 1 shows a roller 1 fastened to a motor-driven compacting device (not shown). It is cantilevered by being flanged to the engine via a bearing journal 2. At its outer periphery, the roller carries numerous, arranged in rows of teeth 3, which engage in compression in the ground.

Wesentlich ist nun, daß die Rolle 1 eine Aufnahmevorrichtung für einen Anbauring 5 aufweist. Im dargestellten Ausführungsbeispiel setzt sich diese Aufnahmevorrichtung aus mehreren Elementen zusammen. Diese sind sämtlich an der der fliegenden Lagerung 2 gegenüberliegenden Stirnseite der Rolle 1 angeordnet. Das erste Element der Aufnahmevorrichtung ist ein Zentrierkegel 4a, auf den der Anbauring 5 aufgeschoben ist. Dabei liegen Zentrierflächen des Kegels 4a an entsprechenden Gegenflächen eines Zentrierringes 6 des Anbauringes 5 an. Die Achse des Kegels 4a ist die Rollenachse A und sein Durchmesser beträgt im gezeichneten Ausführungsbeispiel etwa 1/3 des Rollendurchmessers.It is essential that the roller 1 has a receiving device for a mounting ring 5. In the illustrated embodiment, this recording device is composed of several elements. These are all arranged on the flying bearing 2 opposite end face of the roller 1. The first element of the receiving device is a centering cone 4a, on which the attachment ring 5 is pushed. In this case, centering surfaces of the cone 4a abut corresponding mating surfaces of a centering ring 6 of the attachment ring 5. The axis of the cone 4a is the roller axis A and its diameter is in the illustrated embodiment about 1/3 of the roller diameter.

Der Zentrierkegel 4a ist über Schrauben 2a an dem Lagerzapfen 2 montiert, wobei die Schraubenköpfe voll im Zentrierkegel versenkt sind, so daß er eine plane, radiale Auflagefläche für die stirnseitige Gegenfläche der Nabe 10 des Anbauringes 5 bildet.The centering cone 4 a is mounted on the journal 2 by means of screws 2 a, wherein the screw heads are sunk completely in the centering cone, so that it forms a plane, radial bearing surface for the end face of the hub 10 of the mounting ring 5.

Die zweiten Elemente der Aufnahmevorrichtung bilden Befestigungselemente in Form von drei Schrauben 4b mit entsprechenden Gegengewinden, die zweckmäßigerweise im Kegel 4a angeordnet sind. Mit den Schrauben 4b wird der Anbauring 5 an der Rolle 1 befestigt und so gegen die Rolle gedrückt, daß sich insbesondere an den Zentrierflächen des Kegels 4a eine reibschlüssige Verbindung ergibt. Durch das Umgreifen des aus der Stirnfläche der Rolle 1 hervorstehenden Kegels 4a mittels des vom Anbauring 5 zur Rolle 1 hin vorstehenden Zentrierringes 6 erhält man einen Formschluß, der ein Verschieben von Anbauring 5 und Rolle 1 gegeneinander senkrecht zur Achse A verhindert.The second elements of the receiving device form fastening elements in the form of three screws 4b with corresponding mating threads, which are expediently arranged in the cone 4a. With the screws 4b of the mounting ring 5 is attached to the roller 1 and pressed against the roller, that in particular at the centering surfaces of the cone 4a results in a frictional connection. By embracing the protruding from the end face of the roller 1 cone 4 a by means of the attachment ring 5 to the roller 1 projecting centering ring 6 is obtained a positive engagement, which prevents displacement of attachment ring 5 and 1 against each other perpendicular to the axis A.

Das dritte Element der Aufnahmevorrichtung bilden Vertiefungen 4c, die an der Stirnseite der Rolle 1 angeordnet sind und in die Vorsprünge 7 des Anbauringes 5 eingreifen. Durch diesen Formschluß sind Rolle 1 und Anbauring 5 drehfest miteinander verbunden. Um die auftretenden Hebelkräfte gering zu halten, sind die Vertiefungen und Vorsprünge radial möglichst weit außen positioniert, hier sogar am Außenzylinder von Rolle 1 und Anbauring 5.The third element of the receiving device form recesses 4 c, which are arranged on the end face of the roller 1 and engage in the projections 7 of the mounting ring 5. By this form fit roller 1 and attachment ring 5 rotatably connected to each other. In order to keep the lever forces occurring low, the recesses and projections are radially outwardly positioned as far as possible, here even on the outer cylinder of roller 1 and mounting ring. 5

Der äußere Umfang des Anbauringes 5 ist vorteilhaft so gestaltet, wie der äußere Umfang der Rolle 1. Im vorliegenden Beispiel sind deshalb auch am Anbauring 5 Zähne 8 angeordnet. Dabei sind die am Außenrand des Anbauringes 5 liegenden Zähne zu diesem Rand hin abgeschrägt.The outer circumference of the mounting ring 5 is advantageously designed as the outer circumference of the roller 1. In the present example, 5 teeth 8 are therefore also arranged on the mounting ring. The teeth lying on the outer edge of the attachment ring 5 are beveled towards this edge.

Figur 2 zeigt die äußere Stirnseite des Anbauringes 5. Hier ist die Anordnung der zueinander versetzten Zähne 8 besonders gut zu erkennen. Weiterhin sieht man die drei Schrauben 4b der Aufnahmevorrichtung sowie drei radial verlaufende Handgriffe 9 an der Außenseite des Anbauringes.FIG. 2 shows the outer end face of the attachment ring 5. Here, the arrangement of the staggered teeth 8 can be seen particularly well. Furthermore, you can see the three screws 4b of the recording device and three radially extending handles 9 on the outside of the attachment ring.

Das in Figur 3 dargestellte zweite Ausführungsbeispiel unterscheidet sich vom ersten im wesentlichen durch eine anders ausgestaltete Aufnahmevorrichtung. Wie im ersten Ausführungsbeispiel weist auch hier die Rolle 21 einen Kegel oder Zylinder 24a auf, der von einem Verbindungsring 26 des Anbauringes 25 umschlossen wird.The second embodiment shown in Figure 3 differs from the first essentially by a differently configured receiving device. As in the first embodiment, here too the roller 21 has a cone or cylinder 24a, which is enclosed by a connecting ring 26 of the mounting ring 25.

Das zweite Element der Aufnahmevorrichtung besteht hier allerdings aus Hinterschneidungen, die hinter Vorsprüngen 24b am stirnseitigen äußeren Umfang der Rolle 21 gebildet sind und gegen die Vorsprünge 30 des Außenringes 25 verspannt sind.However, the second element of the receiving device here consists of undercuts, which are formed behind projections 24b on the front-side outer circumference of the roller 21 and are braced against the projections 30 of the outer ring 25.

Zur Befestigung wird der Außenring 25 in diesem Ausführungsbeispiel auf den Kegel 24a gesteckt und danach so um die Achse A verdreht, daß die Vorsprünge 30 des Außenringes 25 hinter die Nasen 24b der Rolle 21 gelangen. Danach wird eine zentrale Schraube 31 angezogen, die auf der Achse A in einem Gewinde durch den Anbauring 25 hindurchläuft und auf der Stirnseite des Kegelstumpfes 24a der Rolle 21 endet. Dadurch wird der Anbauring 25 in Richtung von der Rolle 21 weg gegen diese verspannt, indem die korrespondierenden Flächen der Vorsprünge 30 und Nasen 24b gegeneinander gepreßt werden.For attachment, the outer ring 25 is inserted in this embodiment on the cone 24a and then rotated about the axis A, that the projections 30 of the outer ring 25 behind the lugs 24b of the roller 21 pass. Thereafter, a central screw 31 is tightened, which passes on the axis A in a thread through the mounting ring 25 and ends on the front side of the truncated cone 24 a of the roller 21. As a result, the mounting ring 25 is braced in the direction away from the roller 21 against this by the corresponding surfaces of the projections 30 and lugs 24b are pressed against each other.

Die miteinander verspannten Flächen der Vorsprünge 30 und Nasen 24b sind zweckmäßig in Umfangsrichtung profiliert oder durch endständige Anschläge in Umfangsrichtung begrenzt, um durch Formschluß eine drehfeste Verbindung zu erzielen.The mutually braced surfaces of the projections 30 and lugs 24b are advantageously profiled in the circumferential direction or limited by terminal stops in the circumferential direction to achieve a positive connection by a rotationally fixed connection.

Im Bereich außerhalb der Vorsprünge 30 wird der Anbauring 25 durch einen Innenring 32 an der Innenseite des Außenzylinders der Rolle 21 geführt.In the area outside the projections 30 of the mounting ring 25 is guided by an inner ring 32 on the inside of the outer cylinder of the roller 21.

In Figur 4 sieht man den Anbauring 25 von seiner äußeren Stirnseite. Im teilweisen Schnitt läßt sich die Lage der drei Nasen 24b der Rolle 21 und der drei Vorsprünge 30 des Anbauringes 25 besonders gut erkennen.FIG. 4 shows the attachment ring 25 from its outer end face. In the partial section, the position of the three lugs 24b of the role can be 21 and the three projections 30 of the mounting ring 25 recognize particularly well.

In Figur 5 ist eine Ausführungsform dargestellt, die ohne Zentrierung an der Rollennabe und ohne konischen Zentrierkegel auskommt. Vielmehr findet eine zylindrische Zentrierung des Anbauringes 45 an der Rolle 41 statt.FIG. 5 shows an embodiment which does not require centering on the roller hub and without a conical centering cone. Rather, a cylindrical centering of the attachment ring 45 takes place on the roller 41.

Dazu weist die Rolle 41 an der dem Antrieb abgewandten Seite ihres Außenzylinders an dessen Innenseite einen Bereich auf, der als Zentrierhülse 44a dient. Diese Zentrierfläche fungiert zum einen als Führung für einen vom Anbauring 45 in den Außenzylinder der Rolle 41 hineinragenden Innenring 52. Zum anderen sind im Bereich oder nahe der Zentrierhülse 44a im Außenzylinder der Rolle 41 radiale Bohrungen 44c vorgesehen. Durch diese werden Schrauben 44b gesteckt und mit Laschen 46 verschraubt. Die Laschen 46 sind mit dem Anbauring 45 vergossen und erstrecken sich von diesem kommend etwa einige Zentimeter entlang der Zentrierhülse 44a an deren Innenseite. Durch Anziehen der Schrauben 44b werden die Laschen 46 fest nach außen gegen die Zentrierhülse 44a gedrückt und so Anbauring 45 und Rolle 41 radial miteinander verspannt.For this purpose, the roller 41 on the side facing away from the drive of its outer cylinder on the inside of a region which serves as a centering sleeve 44a. On the other hand, radial bores 44c are provided in the region or close to the centering sleeve 44a in the outer cylinder of the roller 41. The centering surface acts as a guide for an inner ring 52 projecting from the attachment ring 45 into the outer cylinder of the roller 41. Through these screws 44b are inserted and bolted with tabs 46. The tabs 46 are potted with the mounting ring 45 and extend from this coming about a few inches along the centering sleeve 44a on the inside. By tightening the screws 44b, the tabs 46 are pressed firmly outward against the centering sleeve 44a and so clamped attachment ring 45 and roller 41 radially together.

Um ein festes Anliegen der Laschen 46 an der Innenseite des Außenzylinder der Rolle 41 zu ermöglichen, sind zur Erhöhung der Beweglichkeit der Laschen 46 axiale Schlitze 47 im Außenzylinder des Anbauringes 45 angeordnet. Die Schlitze 47 erstrecken sich etwa über die halbe Breite des Anbauringes 45 und begrenzen die Laschen 46 seitlich. An ihrer der Rolle 41 abgewandten Seite sind die Laschen 46 einstückig mit dem Anbauring 45 verbunden.To allow a fixed concern of the tabs 46 on the inside of the outer cylinder of the roller 41, 46 axial slots 47 are arranged in the outer cylinder of the mounting ring 45 to increase the mobility of the tabs. The slots 47 extend approximately over half the width of the mounting ring 45 and limit the tabs 46 laterally. On their side facing away from the roller 41, the tabs 46 are integrally connected to the mounting ring 45.

In Figur 6 ist schließlich die Anordnung mehrerer, im Ausführungsbeispiel dreier, über den Umfang verteilbar Laschen 46 am Anbauring 45 zu erkennen.Finally, FIG. 6 shows the arrangement of a plurality of tabs 46, which can be distributed over the circumference in the exemplary embodiment, on the attachment ring 45.

Anstelle einer Verschraubung elastischer Segmente, die dadurch einen Reibschluß mit der Rolle 41 erzeugen, kann die Verbindung auch durch Spannhülsen erfolgen, die auf Klemmen und Abscheren wirken.Instead of screwing elastic segments, thereby creating a frictional engagement with the roller 41, the connection can also be made by clamping sleeves, which act on terminals and shearing.

Allen Ausführungsbeispielen ist der Vorteil gemeinsam, daß in einfacher Weise die wirksame Walzenbreite verändert werden kann.All embodiments have the advantage in common that the effective roll width can be changed in a simple manner.

Claims (26)

  1. A motor-driven soil compaction device, especially a trench roller, comprising at least one roller (1, 21, 41) moving over the soil and compacting the same, characterized in that the roller (1, 21, 41) comprises at least one receiving apparatus for receiving a coaxial accessory ring (5, 25, 45) which is arranged on the face side and which is arranged to increase the compaction width as a further roller, with the accessory ring being connectable in a detachable way with the roller in a frictional or interlocking manner.
  2. A motor-driven soil compaction device according to claim 1, characterized in that the receiving apparatus comprises at least one centering surface, especially a conical surface (4a, 24a, 44a) for centering the accessory ring (5, 25, 45).
  3. A motor-driven soil compaction device according to claim 1, characterized in that the accessory ring (5, 45) and/or the roller comprises projections (7, 46) which are at least predominantly aligned axially.
  4. A motor-driven soil compaction device according to claim 3, characterized in that the projections (7) project into recesses (4c) of the roller (1) and/or the accessory ring.
  5. A motor-driven soil compaction device according to claim 1, characterized in that the accessory ring (25) and/or the roller (21) comprise projections (30) which engage into respective undercuts of the roller (21) and/or the accessory ring (25).
  6. A motor-driven soil compaction device according to claim 1, characterized in that the accessory ring (5) comprises projections (7) which project in an interlocking manner into recesses (4c) of the roller.
  7. A motor-driven soil compaction device according to claim 1, characterized in that the receiving apparatus comprises a bayonet catch.
  8. A motor-driven soil compaction device according to claim 1, characterized in that the accessory ring (45) and/or the roller comprise fastening elements (46) which are elastic or displaceable in the radial direction.
  9. A motor-driven soil compaction device according to claim 1, characterized in that the accessory ring (5, 25, 45) can be clamped axially and/or radially with the roller (1, 21, 41).
  10. A motor-driven soil compaction device according to claim 9, characterized in that the clamping of the accessory ring (25) is averted from the roller (21).
  11. A motor-driven soil compaction device according to claim 10, characterized in that the clamping is made by a central screw (31).
  12. An accessory ring for increasing the compaction width of a roller (1, 21), especially a trench roller, which compacts the soil and is mounted on a motor-driven soil compaction device, with the accessory ring (5, 25, 45) being arranged as a further compacting roller which is received on the face side and coaxially by a receiving apparatus of the roller, with the same being detachably connectable with the roller in an interlocking and frictional manner.
  13. An accessory ring according to claim 12, characterized in that the accessory ring (5, 45) comprises at least predominantly axially aligned projections (7, 46).
  14. An accessory ring according to claim 13, characterized in that the projections (7) project into recesses (4c) of the roller (1).
  15. An accessory ring according to claim 12, characterized in that the accessory ring (25) comprises projections (30) which engage into respective undercuts of the roller (21).
  16. An accessory ring according to claim 12, characterized in that the accessory ring (5) comprises projections (7) which project in an interlocking manner into recesses (4c) of the roller (1).
  17. An accessory ring according to claim 12, characterized in that the receiving apparatus comprises a bayonet catch.
  18. An accessory ring according to claim 12, characterized in that the accessory ring (45) comprises fastening elements (46) which are elastic or displaceable in the radial direction.
  19. An accessory ring according to one of the preceding claims, characterized in that it comprises fastening means (4b, 31, 44b) for its mounting on the roller (1, 21, 41).
  20. An accessory ring according to one of the preceding claims, characterized in that that relating to its central radial plane it comprises a hub (10, 33) which is offset axially to the roller (1, 21).
  21. An accessory ring according to one of the preceding claims, characterized in that that it comprises a centering ring (6, 26) on its face side facing the roller.
  22. An accessory ring according to one of the preceding claims, characterized in that it comprises at least one receiving apparatus for receiving a further coaxial accessory ring to be arranged on the face side for further increasing the compaction width, which accessory ring can be detachably connected with the first accessory ring in an interlocking or frictional manner.
  23. An accessory ring according to one of the preceding claims, characterized in that its width is approximately ¼ to ¾ of the roller width.
  24. An accessory ring according to one of the preceding claims, characterized in that it has the same outside diameter as the roller (1, 21, 41).
  25. An accessory ring according to one of the preceding claims, characterized in that it consists substantially of only one outside cylinder.
  26. An accessory ring according to one of the preceding claims, characterized in that it comprises an axially projecting ring (32, 52) by which it is guided on the outside cylinder of the roller (21, 41).
EP98108471A 1997-08-15 1998-05-09 Motor driven ground compactor Expired - Lifetime EP0898020B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29714595U DE29714595U1 (en) 1997-08-15 1997-08-15 Motorized soil compactor
DE29714595U 1997-08-15

Publications (2)

Publication Number Publication Date
EP0898020A1 EP0898020A1 (en) 1999-02-24
EP0898020B1 true EP0898020B1 (en) 2006-11-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98108471A Expired - Lifetime EP0898020B1 (en) 1997-08-15 1998-05-09 Motor driven ground compactor

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EP (1) EP0898020B1 (en)
AT (1) ATE346191T1 (en)
DE (2) DE29714595U1 (en)
DK (1) DK0898020T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9033613B2 (en) 2012-03-14 2015-05-19 Bomag Gmbh Stripping device for a soil compaction roller and soil compaction roller, in particular trench roller

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
DE29914838U1 (en) * 1999-08-25 2001-01-04 Bomag Gmbh Soil compaction device
NZ588761A (en) * 2006-05-31 2011-01-28 Equipment Component Holdings Pty Ltd Attaching wheels of a compacting device at different orientations using block with offset aperture
EP2808161B1 (en) * 2013-05-31 2016-09-28 Heinz Bergmann e.Kfm. Maschinen für die Abfallwirtschaft Roller compressor device for compacting waste materials and recyclable material
DE102015016627A1 (en) 2015-12-21 2017-06-22 Bomag Gmbh Soil compaction drum and construction machine for soil compaction
CN113957770A (en) * 2021-11-24 2022-01-21 六安庆超建筑设计有限公司 Cement foundation tamping device for building and tamping method thereof

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DE7409649U (en) * 1974-07-04 Rammax Maschinenbau Schuett H Vibrating roller, in particular for use in trenching
DE1733332U (en) * 1956-06-21 1956-11-08 Gerhard L Pottkaemper STREET ROLLER, IN PARTICULAR VIBRATION STREET ROLLER.
FR1372592A (en) * 1963-08-05 1964-09-18 Richier Sa compacting equipment adaptable to a road roller, or other self-propelled machine
DE3208551C2 (en) * 1982-03-10 1989-09-21 Pflugfabrik Lemken Kg, 4234 Alpen Packer or roller-shaped device
FI842678A (en) * 1984-07-04 1986-01-05 Tana Jyrae Ky FOERFARANDE FOER FRAMSTAELLNING AV VAELTAR SAMT VAELTAR OCH VAELTSERIE FRAMSTAELLDA MEDELST FOERFARANDET.
DE8710179U1 (en) * 1987-07-24 1987-09-17 Bomag-Menck GmbH, 5407 Boppard Vibration edge roller
DE8811755U1 (en) * 1988-09-16 1988-11-10 Silo-Wolff KG, 3471 Lauenförde Packer roller
DE19538585A1 (en) * 1995-10-17 1997-04-24 Amazonen Werke Dreyer H Base barrel with continuous carriage pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9033613B2 (en) 2012-03-14 2015-05-19 Bomag Gmbh Stripping device for a soil compaction roller and soil compaction roller, in particular trench roller

Also Published As

Publication number Publication date
EP0898020A1 (en) 1999-02-24
ATE346191T1 (en) 2006-12-15
DE59813816D1 (en) 2007-01-04
DK0898020T3 (en) 2007-04-02
DE29714595U1 (en) 1997-10-02

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