EP0176829A1 - Compact excavator - Google Patents

Compact excavator Download PDF

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Publication number
EP0176829A1
EP0176829A1 EP85111522A EP85111522A EP0176829A1 EP 0176829 A1 EP0176829 A1 EP 0176829A1 EP 85111522 A EP85111522 A EP 85111522A EP 85111522 A EP85111522 A EP 85111522A EP 0176829 A1 EP0176829 A1 EP 0176829A1
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EP
European Patent Office
Prior art keywords
superstructure
intermediate piece
boom
excavator according
excavator
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
EP85111522A
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German (de)
French (fr)
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EP0176829B1 (en
Inventor
Luis Haringer
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Macmoter SpA
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Macmoter SpA
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Publication of EP0176829A1 publication Critical patent/EP0176829A1/en
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    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/13—Handlers utilizing parallel links

Definitions

  • the invention relates to a so-called compact excavator with a superstructure rotatably mounted on a chassis by means of a slewing ring, on which a multi-part boom is rotatably mounted about a vertical axis and the boom comprises an intermediate piece which is pivotable about a vertical axis.
  • the two parallelogram links are usually designed as rigid elements.
  • the present invention is based on the object of being able to bring about a free movement of a boom.
  • the present invention provides that one of the two parallelogram links can be changed in length, i.e. contains a hydraulic cylinder or is formed by a hydraulic cylinder and its piston rod.
  • the boom part designed in this way can be connected directly to the superstructure of an excavator or can also be arranged as an intermediate piece in a multi-section boom.
  • FIGS. 1 and 2 the reference numbers used here for the same parts remaining the same in the illustrations of the following exemplary embodiments.
  • a superstructure 3 On a chassis 1, a superstructure 3 is rotatably mounted via a slewing ring 2, which carries a driver's cab 4, a body 5 in the form of a housing for a drive motor and a counterweight and a bracket for a boom 6.
  • the invention particularly relates to a so-called compact excavator, which is built with small dimensions so that the superstructure is not much longer than the chassis.
  • it is usually equipped with support elements, e.g. provided a work plate 7.
  • the enveloping circle 8 is the circle that the protruding parts of the superstructure 3 describe when pivoting the same (without taking the boom itself into account).
  • the longitudinal center axis 9 of the superstructure generally coincides with that of the chassis.
  • the transverse central axis 10 of the uppercarriage lies on the pivot point of the uppercarriage, which is not always the center of the chassis; matches, because often the chassis should contribute to the statics of the weight distribution of the excavator.
  • the boom 6 is at a point around a vertical; Articulated axis that lies on the longitudinal central axis or laterally (asymmetrically).
  • the boom can be swiveled to both sides by angles ⁇ and ⁇ .
  • the articulation point lies at a distance a from the fulcrum and by an amount b 1 to the side of the longitudinal central axis and can be from "0" to the width of the chassis.
  • the pivoting of the boom about the articulation point is usually controlled by a hydraulic drive, but can also be done manually and with a linkage 11.
  • the boom 6 is connected via the intermediate piece 12 by means of a parallel guide.
  • this is in the form of a parallelogram link 14 which in the example engages on the one hand on the bearing base 13 and on the other hand on an extension 15 of the boom 6.
  • Other designs of parallel guides can also be used.
  • the special tasks that a compact excavator is supposed to perform are in a confined space, e.g. To be able to work in narrow streets or on sidewalks and to dig trenches in any relative position and direction and to be able to load the excavation onto vehicles, even if e.g. the trench is to be built close to a wall or perpendicular to it.
  • the exemplary embodiment according to FIGS. 3 and 4 essentially corresponds to that according to FIGS. 1 and 2, FIG. 3 demonstrating the work possibilities.
  • the parallelogram handlebar 14 has a fixed, unchangeable length.
  • the pivoting and locking rod 11 has a plurality of holes through which pins or bolts can be inserted, which fix the intermediate piece 12 on the superstructure in a relative pivot position, the boom being guided parallel to the longitudinal central axis 9.
  • the offset c here contributes to better stability and utilization of the counterweight.
  • the exemplary embodiment according to FIGS. 5 and 6 contains, instead of the rigid parallelogram link 14, a hydraulic cylinder 16 which enables the boom to be additionally pivoted by an angle ⁇ .
  • the holes in the locking rod 11 are designated 17. It can be seen from Fig. 5 that not only a trench 20 can be dug parallel to the longitudinal axis of the undercarriage, but in a wide area next to the excavator at any angle to the longitudinal axis.
  • Figures 2, 3, 7 and 9 show top views in which the upper structure has not been pivoted. It can be seen that the ParaDelogrammation enables work that is only possible with known excavators by pivoting the uppercarriage and the boom. This means fewer tax movements are required. Also, a possibly larger envelope circle does not bother because the superstructure may also does not have to be pivoted for unloading.
  • the locking rod 11 is also replaced by a hydraulic cylinder 18, so that the intermediate piece 12 can be pivoted through any angle without the upper structure also having to be pivoted.
  • the intermediate piece 12 deviating from known constructions, is articulated exactly in the axis of rotation of the superstructure and can be fixed in the rest position by means of a bolt 21 and in at least two Working positions of holes in lugs 22 and 23.
  • a rotary drive or a pair of reversible hydraulic cylinders 18 according to one of the examples described above could also be used to pivot the intermediate piece.
  • the intermediate piece is arranged between the superstructure and the boom.
  • it can also be arranged with its parallel guidance in one of the embodiments described between parts of the boom and would solve the same tasks and bring the same advantages here.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Earth Drilling (AREA)
  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

A compact excavator has a superstructure, a swinging or swivelling mechanism connecting said superstructure with a chassis for swinging said superstructure relative to said chassis about a vertical axis, and a boom on said superstructure. The boom is linked to the superstructure directly by a parallel guide having a parallelogram link (14 or 14') and an intermediate member (12). The parallel guide is able to swing about a vertical axis (13', 13'') secured to the superstructure (3). The intermediate member (12) has a fixed length and the parallelogram link (14, 14') may have a fixed length link or a hydraulic actuator piston cylinder having a variable length. Such a construction simplifies additional movements required of the driver for operating the excavator.

Description

Die Erfindung bezieht sich auf einen sogenannten Kompaktbagger mit einem auf einem Fahrgestell mittels eines Drehkranzes drehbar gelagerten Oberwagen, an dem ein mehrteiliger Ausleger um eine lotrechte Achse drehbar gelagert ist und wobei der Ausleger ein Zwischenstück umfaßt, welches um eine lotrechte Achse schwenkbar ist.The invention relates to a so-called compact excavator with a superstructure rotatably mounted on a chassis by means of a slewing ring, on which a multi-part boom is rotatably mounted about a vertical axis and the boom comprises an intermediate piece which is pivotable about a vertical axis.

Ausführungsbeispiele eines solchen Baggers sind bei- spielsweise in der deutschen Offenlegungsschrift 14 84 752 und der UK-Patentanmeldung 2 092 102 offenbart.Exemplary embodiments of such an excavator are disclosed, for example, in German Offenlegungsschrift 14 84 752 and UK patent application 2 092 102.

Aus diesen beiden Druckschriften ist es bekannt, einen Teil eines Auslegers in Form von Parallelogrammlenkern auszubilden so daß eine parallele seitliche Versetzung des Auslegers möglich wird.From these two publications it is known to form part of a boom in the form of parallelogram links so that a parallel lateral displacement of the boom is possible.

Hierbei sind jedoch die beiden Parallelogrammlenker in Üblicher weise als starre Elemente ausgebildet.Here, however, the two parallelogram links are usually designed as rigid elements.

Um eine zusätzliche seitliche Verschwenkung eines nachgeordneten Auslegerteiles herbeiführen zu können, muß ein zusätzliches Gelenkteil vorgesehen werden, wie es ; die vorgenannte UK-Patentanmeldung offenbart. ;In order to be able to bring about an additional lateral pivoting of a downstream jib part, an additional joint part must be provided, as is; discloses the aforementioned UK patent application. ;

Der vorliegenden Erfindung liegt jedoch die Aufgabe zugrunde, eine freie Bewegbarkeit eines Auslegers herbeiführen zu können. Zur Lösung dieser 4ufgabenstellung sieht die vorliegende Erfindung vor, daß der eine der beiden Parallelogrammlenker längenveränderbar ist, d.h. einen Hydraulikzylinder enthält oder von einem Hydraulikzylinder und seiner Kolbenstange gebildet wird.However, the present invention is based on the object of being able to bring about a free movement of a boom. To solve this task, the present invention provides that one of the two parallelogram links can be changed in length, i.e. contains a hydraulic cylinder or is formed by a hydraulic cylinder and its piston rod.

Das so gestaltete Auslegerteil kann direkt mit dem Oberwagen eines Baggers verbunden sein oder aber auch als Zwischenstück in einem mehrgliedrigen Ausleger ange- : ordnet sein.The boom part designed in this way can be connected directly to the superstructure of an excavator or can also be arranged as an intermediate piece in a multi-section boom.

Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further refinements of the invention result from the subclaims.

Besonders zweckmäßig ist es, wenn das Zwischenstück am Oberwagen neben dem Fahrerhaus angelenkt ist. Es er- gibt sich unter anderem dann eine kürzere Baulänge und eine bessere Ausnutzung des Gegengewichtes. ;It is particularly expedient if the intermediate piece is articulated on the superstructure next to the driver's cab. Among other things, this results in a shorter overall length and better utilization of the counterweight. ;

Ausführungsbeispiele der Erfindung sind im folgenden anhand der Zeichnungen näher beschrieben, und zwar zeigen;

  • Fig. 1: eine Seitenansicht eines Baggers nach der Erfindung,
  • Fig. 2: eine Draufsicht auf das Beispiel nach Fig. 1 in der Ruhestellung,
  • Fig. 3: eine Draufsicht auf ein erstes Ausführungsbeispiel in Arbeitsstellungen,
  • Fig. 4: eine Draufsicht entsprechend Fig. 3 in Ruhestellung,
  • Fig. 5: eine Draufsicht auf ein zweites Ausführungsbeispiel in Arbeitsstellungen,
  • Fig. 6: eine Draufsicht entsprechend Fig. 5 ; in Ruhestellung,
  • Fig. 7: eine Draufsicht auf ein drittes Aus- führungsbeispiel in Arbeitsstellungen,
  • Fig. 8: eine Draufsicht entsprechend Fig. 7 in Ruhestellung,
  • Fig. 9: eine Draufsicht auf ein viertes Ausführungsbeispiel in Arbeitsstellungen,
  • Fig.10: eine Draufsicht entsprechend Fig. 9 in Ruhestellung
Embodiments of the invention are described below with reference to the drawings, namely show;
  • 1 is a side view of an excavator according to the invention,
  • 2: a plan view of the example of FIG. 1 in the rest position,
  • 3: a plan view of a first embodiment in working positions,
  • 4: a top view corresponding to FIG. 3 in the rest position,
  • 5: a plan view of a second embodiment in working positions,
  • FIG. 6: a top view corresponding to FIG. 5; at rest,
  • 7: a top view of a third exemplary embodiment in working positions,
  • 8: a top view corresponding to FIG. 7 in the rest position,
  • 9: a top view of a fourth exemplary embodiment in working positions,
  • Fig. 10: a plan view corresponding to Fig. 9 in the rest position

Die Erfindung ist zunächst anhand der Figuren 1 und 2 erläutert, wobei die hier benutzten Bezugsziffern für gleiche Teile in den Darstellungen der nachfolgenden Ausführungsbeispiele gleichbleiben.The invention is first explained with reference to FIGS. 1 and 2, the reference numbers used here for the same parts remaining the same in the illustrations of the following exemplary embodiments.

Auf einem Fahrgestell 1 ist über einen Drehkranz 2 ein Oberwagen 3 drehbar gelagert, der eine Fahrerkabine 4, einen Aufbau 5 in Form eines Gehäuses für einen Antriebsmotor und ein Gegengewicht und eine Halterung für einen Ausleger 6 trägt.On a chassis 1, a superstructure 3 is rotatably mounted via a slewing ring 2, which carries a driver's cab 4, a body 5 in the form of a housing for a drive motor and a counterweight and a bracket for a boom 6.

Die Erfindung betrifft insbesondere einen sogenannten Kompahtbagger, der bei kleinen Abmessungen so gebaut ist, daß der Oberwagen nicht viel länger ist als das Fahrgestell. Außerdem ist er meist mit Stützelementen, z.B. einem Arbeitsschild 7 versehen. Als Hüllkreis 8 bezeichnet man den Kreis, den vorragende Teile des Oberwagens 3 beim Verschwenken desselben beschreiben (ohne Berücksichtigung des Auslegers selbst). Die Längsmittelachse 9 des Oberwagens stimmt im allgemeinen mit der des Fahrgestells überein. Die Quermittelachse 1o des Oberwagens liegt auf dem Drehpunkt des Oberwagens, der nicht immer mit der Fahrgestellmitte ; übereinstimmt, weil oftmals das Fahrgestell zur Statik der Gewichtsverteilung des Baggers beitragen soll.The invention particularly relates to a so-called compact excavator, which is built with small dimensions so that the superstructure is not much longer than the chassis. In addition, it is usually equipped with support elements, e.g. provided a work plate 7. The enveloping circle 8 is the circle that the protruding parts of the superstructure 3 describe when pivoting the same (without taking the boom itself into account). The longitudinal center axis 9 of the superstructure generally coincides with that of the chassis. The transverse central axis 10 of the uppercarriage lies on the pivot point of the uppercarriage, which is not always the center of the chassis; matches, because often the chassis should contribute to the statics of the weight distribution of the excavator.

Der Ausleger 6 ist an einem Punkt um eine lotrechte ; Achse angelenkt, der auf der Längsmittelachse oder seitlich von dieser (asymmetrisch) liegt.The boom 6 is at a point around a vertical; Articulated axis that lies on the longitudinal central axis or laterally (asymmetrically).

Der Ausleger ist um Winkel α und β nach beiden Seiten schwenkbar. Der Anlenkpunkt liegt in einem Abstand a von dem Drehpunkt und um einen Betrag b1 seitlich der Längsmittelachse und kann von "0" bis zur Breite des Fahrgestells betragen. Das Verschwenken des Auslegers um den Anlenkpunkt wird üblicherweise von einem hydraulischen Antrieb gesteuert, kann aber auch von Hand und mit Festlegung durch ein Gestänge 11 erfolgen.The boom can be swiveled to both sides by angles α and β. The articulation point lies at a distance a from the fulcrum and by an amount b 1 to the side of the longitudinal central axis and can be from "0" to the width of the chassis. The pivoting of the boom about the articulation point is usually controlled by a hydraulic drive, but can also be done manually and with a linkage 11.

Es ist nun bekannt, den Ausleger über ein Zwischenstück 12 an dem Oberwagen zu lagern, welches seinerseits an einem Lagersockel 13 angelenkt ist. Die Längsdistanz dieser Anlenkachse zur Quermittelachse 1o ist mit c bezeichnet, ihr Seitenversatz mit b.It is now known to mount the boom via an intermediate piece 12 on the superstructure, which in turn is articulated on a bearing base 13. The longitudinal distance of this articulation axis to the transverse central axis 10 is denoted by c, its lateral offset by b.

Nach der Erfindung ist der Ausleger 6 über das Zwischenstück 12 mittels einer Parallelführung verbunden. In den Zeichnungen ist diese in Form eines Parallelogrammlenkers 14 ausgeführt, der im Beispiel einerseits am Lagersockel 13 und andererseits an einem Ansatz 15 des Auslegers 6 angreift. Andere Ausbildungen von Parallelführungen können ebenfalls Anwendung finden.According to the invention, the boom 6 is connected via the intermediate piece 12 by means of a parallel guide. In the drawings, this is in the form of a parallelogram link 14 which in the example engages on the one hand on the bearing base 13 and on the other hand on an extension 15 of the boom 6. Other designs of parallel guides can also be used.

Die besonderen Aufgaben, die ein Kompaktbagger erfüllen soll, bestehen darin, auf engstem Raum, z.B. in schmalen Straßen oder auf Bürgersteigen arbeiten zu können und Gräben in jeder beliebigen relativen Lage und Richtung ziehen zu können und den Aushub auf Fahrzeuge laden zu können, auch wenn z.B. der Graben dicht an einer Mauer oder senkrecht dazu erstellt werden soll.The special tasks that a compact excavator is supposed to perform are in a confined space, e.g. To be able to work in narrow streets or on sidewalks and to dig trenches in any relative position and direction and to be able to load the excavation onto vehicles, even if e.g. the trench is to be built close to a wall or perpendicular to it.

Unter diesen vorstehenden Gesichtspunkten sind die nachstehenden Ausführungsbeispiele der Erfindung zu sehen, die diese vielseitige Aufgabenstellung mit neuen Mitteln löst.From the above points of view, the following exemplary embodiments of the invention can be seen, which solve this versatile task with new means.

Das Ausführungsbeispiel nach den Figuren 3 und 4 entspricht im wesentlichen dem nach den Figuren 1 und 2, wobei Fig. 3 die Arbeitsmöglichkeiten demonstriert. Der Parallelogrammlenker 14 besitzt eine feste, unveränderbare Länge. Die Verschwenk- und Arretierstange 11 besitzt mehrere Löcher, durch die hindurch Stifte bzw. Bolzen steckbar sind, die das Zwischenstück 12 am Oberwagen in einer relativen Schwenklage festlegen, wobei der Ausleger parallel zur Längsmittelachse 9 geführt wird. Der Versatz c trägt hier zur besseren Standfestigkeit und Ausnutzung des Gegengewichts bei.The exemplary embodiment according to FIGS. 3 and 4 essentially corresponds to that according to FIGS. 1 and 2, FIG. 3 demonstrating the work possibilities. The parallelogram handlebar 14 has a fixed, unchangeable length. The pivoting and locking rod 11 has a plurality of holes through which pins or bolts can be inserted, which fix the intermediate piece 12 on the superstructure in a relative pivot position, the boom being guided parallel to the longitudinal central axis 9. The offset c here contributes to better stability and utilization of the counterweight.

Das Ausführungsbeispiel nach den Figuren 5 und 6 enthält statt des starren Parallelogrammlenkers 14 einen Hydraulikzylinder 16, der ein zusätzliches Verschwenken des Auslegers um einen Winkel γ ermöglicht. Die Löcher in der Arretierstange 11 sind mit 17 bezeichnet. Man sieht aus Fig. 5, daß nicht nur ein Graben 2o parallel zur Längsachse des Fahrwerks, sondern in breitem Bereich neben dem Bagger unter beliebigen Winkeln zur Längsachse ausgehoben werden kann.The exemplary embodiment according to FIGS. 5 and 6 contains, instead of the rigid parallelogram link 14, a hydraulic cylinder 16 which enables the boom to be additionally pivoted by an angle γ. The holes in the locking rod 11 are designated 17. It can be seen from Fig. 5 that not only a trench 20 can be dug parallel to the longitudinal axis of the undercarriage, but in a wide area next to the excavator at any angle to the longitudinal axis.

Die Figuren 2, 3, 7 und 9 zeigen Draufsichten, in denen ein Verschwenken des Oberwagens nicht erfolgte. Es ist ersichtlich, daß die ParaDelogrammführung ein Arbeiten ermöglicht, welches bei bekannten Baggern nur durch Verschwenken des Oberwagens und des Auslegers möglich ist. Es sind so weniger Steuerbewegungen erforderlich. Auch stört dabei ein evtl. größerer HUllkreis nicht, da der Oberwagen u.U. auch zum Entladen nicht verschwenkt werden muß.Figures 2, 3, 7 and 9 show top views in which the upper structure has not been pivoted. It can be seen that the ParaDelogrammführung enables work that is only possible with known excavators by pivoting the uppercarriage and the boom. This means fewer tax movements are required. Also, a possibly larger envelope circle does not bother because the superstructure may also does not have to be pivoted for unloading.

In dem Ausführungsbeispiel nach den Figuren 7 und 8 ist auch die Arretierstange 11 durch einen Hydraulikzylinder 18 ersetzt, so daß das Zwischenstück 12 um beliebige Winkel verschwenkt werden kann, ohne daß zugleich der Oberwagen verschwenkt werden muß.In the exemplary embodiment according to FIGS. 7 and 8, the locking rod 11 is also replaced by a hydraulic cylinder 18, so that the intermediate piece 12 can be pivoted through any angle without the upper structure also having to be pivoted.

Das Ausführungsbeispiel nach den Figuren 9 und 1o weicht in einigen Punkten von den vorausgehenden Beispielen ab. Zunächst ist das Zwischenstück 12 abweichend von vorbekannten Konstruktionen genau in der Drehachse des Oberwagens amgelenkt und in der Ruhestellung mittels eines Bolzens 21 festlegbar und in mindestens zwei Arbeitsstellungen an Löchern in Ansätzen 22 bzw. 23. Das Zwischenstück ist hier beiderseits um gleiche Winkel β schwenkbar, d.h. bis etwa 750, während der Ausleger über den als Parallelführung dienenden Hydraulikzylinder 16 um den Winkel α= 8, d.h. bis etwa 60° zum Zwischenstück 12 schwenkbar ist.The exemplary embodiment according to FIGS. 9 and 10 differs in some points from the preceding examples. First of all, the intermediate piece 12, deviating from known constructions, is articulated exactly in the axis of rotation of the superstructure and can be fixed in the rest position by means of a bolt 21 and in at least two Working positions of holes in lugs 22 and 23. The intermediate piece is here both sides β pivotally by the same angle that is, to about 75 0, while the boom on the compounds used as parallel guide hydraulic cylinder 16 α = 8 by the angle, ie, to about 6 0 ° is pivotable to the intermediate piece 12.

Zum Verschwenken des Zwischenstücks könnte auch ein Drehantrieb oder ein Paar umsteckbarer Hydraulikzylinder 18 nach einem der vorbeschriebenen Beispiele verwendet werden.A rotary drive or a pair of reversible hydraulic cylinders 18 according to one of the examples described above could also be used to pivot the intermediate piece.

In diesen Beispielen ist das Zwischenstück zwischen Oberwagen und Ausleger angeordnet. Es kann aber auch mit seiner Parallelführung in einer der beschriebenen Ausgestaltungen zwischen Teilen des Auslegers angeordnet sein und würde hier die gleichen Aufgaben lösen und gleiche Vorteile bringen.In these examples, the intermediate piece is arranged between the superstructure and the boom. However, it can also be arranged with its parallel guidance in one of the embodiments described between parts of the boom and would solve the same tasks and bring the same advantages here.

Claims (10)

1. Kompaktbagger mit einem auf einem Fahrgestell mittels eines Drehkranzes drehbar gelagerten Oberwagen, an dem ein mehrteiliger Ausleger um eine lotrechte Achse drehbar gelagert ist und wobei der Ausleger ein Zwischenstück umfaßt, welches um eine lotrechte Achse schwenkbar ist, und zwei Parallelogrammlenker aufweist, dadurch gekennzeichnet, daß der eine der Parallelogrammlenker einen Hydraulikzylinder (16) umfaßt, bzw. von einem Hydraulikzylinder und seiner Kolbenstange gebildet ist (Fig. 5, 6).1. Compact excavator with a superstructure rotatably mounted on a chassis by means of a slewing ring, on which a multi-part boom is rotatably mounted about a vertical axis and the boom comprises an intermediate piece which can be pivoted about a vertical axis and has two parallelogram links, characterized in that that one of the parallelogram links comprises a hydraulic cylinder (16), or is formed by a hydraulic cylinder and its piston rod (Fig. 5, 6). 2. Bagger nach Anspruch 1, dadurch gekennzeichnet, daß das Zwischenstück mit der Parallelführung zwischen Teilen des Auslegers angeordnet ist.2. Excavator according to claim 1, characterized in that the intermediate piece is arranged with the parallel guide between parts of the boom. 3. Bagger nach Anspruch 1, dadurch gekennzeichnet, daß das Zwischenstück einerseits am Oberwagen (3) gelagert, andererseits mit dem Ausleger (6) verbunden ist.3. Excavator according to claim 1, characterized in that the intermediate piece is mounted on the one hand on the superstructure (3) and on the other hand is connected to the boom (6). 4. Bagger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Zwischenstück mittels eines Hydraulikzylinders (18) um eine lotrechte Achse schwenkbar bzw. in einer Schwenklage feststellbar ist.4. Excavator according to one of the preceding claims, characterized in that the intermediate piece can be pivoted about a vertical axis by means of a hydraulic cylinder (18) or can be locked in a pivoted position. 5. Bagger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Zwischenstück mindestens nach einer Seite bis zu etwa 75° schwenkbar ist.5. Excavator according to one of the preceding claims, characterized in that the intermediate piece is pivotable up to about 75 ° at least on one side. 6. Bagger nach einem der Ansprüche 1 oder 3 bis 5, dadurch gekennzeichnet, daß das Zwischenstück mindestens annähernd in der Längsmittelebene des Oberwagens innerhalb des Drehkranzdurchmessers am Oberwagen angelenkt ist (Fig. 9, 10).6. Excavator according to one of claims 1 or 3 to 5, characterized in that the intermediate piece is articulated at least approximately in the longitudinal center plane of the superstructure within the slewing ring diameter on the superstructure (Fig. 9, 1 0 ). 7. Bagger nach einem der Ansprüche 1 oder 3 bis 5, dadurch gekennzeichnet, daß das Zwischenstück am Oberwagen etwa neben dem Fahrerhaus angelenkt ist (Fig. 2).7. Excavator according to one of claims 1 or 3 to 5, characterized in that the intermediate piece is articulated on the superstructure approximately next to the cab (Fig. 2). 8. Bagger nach Anspruch 7, dadurch gekennzeichnet, daß das Zwischenstück asymmetrisch (b) zur Längsmittelebene (9) des Oberwagens an diesem angelenkt ist.8. Excavator according to claim 7, characterized in that the intermediate piece is articulated asymmetrically (b) to the longitudinal center plane (9) of the superstructure on this. 9. Bagger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Zwischenstück auf der dem Ausleger abgewandten (c) und dem Gegengewicht zugewandten Seite der Quermittelebene (10) des Oberwagens an diesem angelenkt ist.9. Excavator according to one of the preceding claims, characterized in that the intermediate piece on the side facing away from the boom (c) and the counterweight facing the cross median plane (1 0 ) of the superstructure is articulated thereon. 10. Bagger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Zwischenstück mittels eines Gestänges (11) feststellbar ist.1 0 . Excavator according to one of the preceding claims, characterized in that the intermediate piece can be locked by means of a linkage (11).
EP85111522A 1984-10-01 1985-09-12 Compact excavator Expired EP0176829B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3435981 1984-10-01
DE19843435981 DE3435981A1 (en) 1984-10-01 1984-10-01 COMPACT EXCAVATOR

Publications (2)

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EP0176829A1 true EP0176829A1 (en) 1986-04-09
EP0176829B1 EP0176829B1 (en) 1989-01-25

Family

ID=6246815

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EP85111522A Expired EP0176829B1 (en) 1984-10-01 1985-09-12 Compact excavator

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US (1) US4693662A (en)
EP (1) EP0176829B1 (en)
AT (1) ATE40432T1 (en)
DE (1) DE3435981A1 (en)
ES (4) ES296011Y (en)

Cited By (2)

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EP0539864A1 (en) * 1991-10-31 1993-05-05 Dietmar Zerres Excavation device
EP0892115A1 (en) * 1996-03-12 1999-01-20 Kabushiki Kaisha Takeuchi Seisakusho Power shovel

Families Citing this family (10)

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DE3533427A1 (en) * 1985-09-19 1987-03-26 Schaeff Karl Gmbh & Co SIDE OFFSET DEVICE FOR AN EXCAVATOR CONSOLE
AT396142B (en) * 1990-11-28 1993-06-25 Ernst Augl Ges M B H & Co Kg Excavator
US5486084A (en) * 1993-06-07 1996-01-23 Raymond F. Pitman Multiple purpose material handling and working apparatus
FR2733525B1 (en) * 1995-04-25 1997-07-04 Mecalac PUBLIC WORKS MACHINE WITH A WORKING TOOL MOUNTED AT THE END OF AN ARTICULATED ARM
DE50100018D1 (en) * 2001-07-20 2002-09-19 Hans Neunteufel Vehicle with device for adjusting an uppercarriage on an undercarriage, in particular an excavator or loader, with such an uppercarriage adjustment
WO2005035882A2 (en) * 2003-10-03 2005-04-21 The Charles Machine Works, Inc. Multi-function work machine
WO2007030908A1 (en) * 2005-09-16 2007-03-22 Moose Mountain Heavy Equipment Training Center Inc. System and method for training an excavator operator
US20080156009A1 (en) * 2006-12-28 2008-07-03 Whirlpool Corporation Variable capacity modular refrigeration system for kitchens
JP6374821B2 (en) * 2015-03-30 2018-08-15 株式会社クボタ Working machine
JP6374822B2 (en) * 2015-03-30 2018-08-15 株式会社クボタ Working machine

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GB2126982A (en) * 1982-09-14 1984-04-04 Orenstein & Koppel Ag Hydraulic excavator equipment

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DE1484752A1 (en) * 1962-05-17 1970-12-17 Poclain Le Plessis Belleville Hydraulic excavator
DE1634994A1 (en) * 1967-11-08 1971-09-16 Schaeff Kg Maschfab Karl Mobile excavator (mobile excavator)
FR1603020A (en) * 1968-05-20 1971-03-15
US3848756A (en) * 1970-03-18 1974-11-19 H Schaeff Backhoe apparatus
DE3234020A1 (en) * 1982-09-14 1984-03-15 O & K Orenstein & Koppel Ag, 1000 Berlin ARRANGEMENT FOR SWIVELING A BRACKET OF THE EQUIPMENT OF A HYDRAULIC EXCAVATOR
GB2126982A (en) * 1982-09-14 1984-04-04 Orenstein & Koppel Ag Hydraulic excavator equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0539864A1 (en) * 1991-10-31 1993-05-05 Dietmar Zerres Excavation device
EP0892115A1 (en) * 1996-03-12 1999-01-20 Kabushiki Kaisha Takeuchi Seisakusho Power shovel

Also Published As

Publication number Publication date
ES296655Y4 (en) 1988-05-27
ES296417U (en) 1987-08-16
DE3435981A1 (en) 1986-04-17
ES296655Y (en) 1988-05-16
DE3435981C2 (en) 1992-12-03
ES296011Y (en) 1988-01-16
ES296011U (en) 1987-07-16
US4693662A (en) 1987-09-15
ES296417Y (en) 1988-03-16
ATE40432T1 (en) 1989-02-15
ES296418Y (en) 1988-04-16
ES296655U (en) 1987-12-01
ES296418U (en) 1987-09-16
EP0176829B1 (en) 1989-01-25

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