EP0663034B1 - Earth-moving machine with revolving tower and adjustable counterweight - Google Patents

Earth-moving machine with revolving tower and adjustable counterweight Download PDF

Info

Publication number
EP0663034B1
EP0663034B1 EP93921901A EP93921901A EP0663034B1 EP 0663034 B1 EP0663034 B1 EP 0663034B1 EP 93921901 A EP93921901 A EP 93921901A EP 93921901 A EP93921901 A EP 93921901A EP 0663034 B1 EP0663034 B1 EP 0663034B1
Authority
EP
European Patent Office
Prior art keywords
equipment
pivotable part
machine according
pivotable
gravity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93921901A
Other languages
German (de)
French (fr)
Other versions
EP0663034A1 (en
Inventor
Uwe Esch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
O and K Mining GmbH
Original Assignee
O and K Mining GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by O and K Mining GmbH filed Critical O and K Mining GmbH
Publication of EP0663034A1 publication Critical patent/EP0663034A1/en
Application granted granted Critical
Publication of EP0663034B1 publication Critical patent/EP0663034B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0808—Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/18—Counterweights

Definitions

  • the invention relates to a machine for earthworks, such as cable excavators, hydraulic excavators, backhoe excavators, loading shovel excavators or the like.
  • DE-A 32 32 163 relates to a hydraulically driven excavator which has mechanical-hydraulic working elements, such as compression springs, leaf springs, tension springs or counterweights, by means of which the dead weight of the cantilever arm and equipment (bucket, gripper, chisel and others) is lifted based on force.
  • An extension can be attached to the boom suspension, to which a counterweight (counterweight) is attached, the weight of which depends on the size of the boom arm with equipment.
  • Equipment and counterweight are mounted on a common trestle on the superstructure, a hydraulic ram being provided between the superstructure and the equipment, which may interact with a spring.
  • the disadvantage here is that due to the geometric arrangement and the pivoting of the counterweight above the superstructure, the stability of the device with the counterweight raised is absolutely in question.
  • DE-B 19 17 434 relates to a machine for earthworks, for example excavators or the like, with a rotating device arranged on a chassis, which carries a rotating tower containing the implement and a counterweight.
  • a rotating device arranged on a chassis, which carries a rotating tower containing the implement and a counterweight.
  • a vertically aligned, adjustable parallelogram support which consists of two parallel arms articulated at one end to a platform located on the rotating device and at the other at the rotating tower.
  • a piston-cylinder device is arranged between one of the arms and the platform or the turret .
  • the parallelogram and thus the shifting of the counterweight or components of the superstructure are adapted to the respective work situation or the transport purpose, which ultimately results in a relatively large construction effort since there is no operative connection between equipment and counterweight.
  • CA-A 1 008 407 relates to a machine for earthworks, in particular a hydraulic excavator.
  • the excavator contains an undercarriage that can be moved on caterpillars, on which an upper carriage is rotatably mounted via a connecting element.
  • Work equipment consisting of a boom system and a shovel is pivotally attached to the superstructure.
  • a displaceable counterweight is arranged on the end of the superstructure facing away from the boom system and is connected to the boom system via lifting elements. The shifting of the counterweight serves the purpose of ensuring the stability of the excavator in the case of excessively long boom systems, the counterweight being shifted diametrically when the boom system is extended.
  • the aim of the subject matter of the invention is to develop a machine for earthworks in such a way that the potential energy of the respective work cycle is stored with simple constructive means in order to be able to use it sensibly again in the next cycle.
  • the subject of the invention can be used in a sensible manner in all machines for earthworks, in particular cable excavators, hydraulic excavators, backhoe and loading shovel excavators, the rocker depending on the particular device either being shifted to a support frame as a one-piece component or a division of the equipment and the swiveling part Part is made, each stored separately on a trestle and are connected to one another by corresponding connecting elements, such as ropes, chains or hydraulic cylinders.
  • FIGS. 1 and 2 show a schematic diagram of a hydraulic excavator 1 designed as a loading shovel excavator, which is essentially composed of the following components: an undercarriage 3 connected to a crawler chassis 2, a slewing ring 4, a stationary uppercarriage part 5 together with the driver's cab 6, the uppercarriage 5 being pivotable about the vertical axis 7 relative to the undercarriage 3.
  • a pivotable part 10 consisting of the components motor 8, counterweight 9 and the hydraulic system, not shown here, is connected to the work equipment 11, forming a kind of rocker, which carries the loading shovel 12 in the region of its free end.
  • the components 10 and 11 can thus be pivoted about a common horizontal axis 13, which is only indicated here, but at the same time can be rotated about the vertical axis 7 together with the stationary superstructure part 5.
  • the zero position of the pivotable part 10 is indicated by the dashed line 14 and the vertical distance between this zero position 14 and the upper edge 14 'of the undercarriage 3 is denoted by V.
  • V the vertical distance between this zero position 14 and the upper edge 14 'of the undercarriage 3
  • a swivel angle alpha of more than 45 ° can be achieved.
  • the division of the pivot angle alpha is approximately 1/2, ie the pivot angle of the pivotable part 10, based on the zero position 14, is twice as high as down.
  • the distance a from the center of gravity 15 of the pivotable part 10 to the tilting axis referred to in this illustration as the tipping point 35 forms the ratio to the distance b from the center of gravity 16 of the equipment 11 to the tipping point 35 a / b> 1.
  • FIGS. 3 and 4 show a schematic diagram of the uppercarriage area 17 of a backhoe excavator, the uppercarriage area 17 being formed from a stationary part 19 which can be rotated about an indicated vertical axis 20 and which is provided with two support brackets 21, 22.
  • the pivotable part 23, which is only indicated here, can be pivoted about the horizontal axis 24 of the support bracket 22 and the equipment 26 which interacts with the backhoe bucket 25 can be pivoted about the horizontal axis 27 of the support bracket 21.
  • an elevated area 28 is provided, which carries a deflection disk 29, around which a cable 32 attached to articulation points 30 and 31 on the one hand on the equipment 26 and on the other hand on the pivotable part 23 can be deflected.
  • the distance c from the center of gravity 36 of the pivotable part 23 to the tilt axis referred to in this illustration as the tipping point 37 forms the ratio to the distance d from the center of gravity 38 of the equipment 26 to the tipping point 37 c / d> 1.
  • FIG. 4 shows the undercarriage 34 equipped with a crawler chassis 33 in a hinted manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Jib Cranes (AREA)

Abstract

The proposal is for an earth-moving machine, e.g. a cable dredger, hydraulic dredger, ditcher, loading shovel or the like with a bogie (3) possibly connected to moving gear (2) on which a superstructure (5) pivotable about a vertical axis is secured on which there is working gear (11) integral with a counterweight (9), in which the superstructure (5) is divided into a stationary section (10), possibly rotatable about the vertical axis (7) and a section (10) pivotable about a horizontal axis (13) and the pivotable section (10) is directly or indirectly coupled to the working gear (1).

Description

Die Erfindung betrifft eine Maschine für Erdarbeiten, wie Seilbagger, Hydraulikbagger, Tieflöffelbagger, Ladeschaufelbagger oder dgl., mit einem Unterwagen, auf welchem ein Oberwagen gelagert ist, an welchem eine Arbeitsausrüstung in Wirkverbindung mit einem Gegengewicht vorgesehen ist.The invention relates to a machine for earthworks, such as cable excavators, hydraulic excavators, backhoe excavators, loading shovel excavators or the like.

Die DE-A 32 32 163 betrifft einen hydraulisch angetriebenen Bagger, der zum Zwecke der Leistungserhöhung bei Eigengewichtsneutralisierung mechanisch-hydraulische Arbeitselemente, wie Druckfedern, Blattfedern, Zugfedern oder Kontergewichte aufweist, durch welche das Eigengewicht des Auslegerarmes nebst Ausrüstung (Schaufel, Greifer, Meißel und andere) kraftbezogen aufgehoben wird. An die Auslegeraufhängung kann eine Verlängerung angesetzt werden, an welche ein Gegengewicht (Kontergewicht) angebracht wird, dessen Gewicht sich nach der Größe des Auslegerarmes mit Ausrüstung richtet. Durch die Neutralisierung des Auslegereigengewichtes ist der grundsätzlich notwendige Transport und die damit verbundene Aufbringung von Energie nun nicht mehr erforderlich. Zum einen werden dadurch zusätzliche Leistungskapazitäten frei und zum anderen können bei gleichbleibender Arbeit wesentliche Betreibungsenergieanteile eingespart werden.DE-A 32 32 163 relates to a hydraulically driven excavator which has mechanical-hydraulic working elements, such as compression springs, leaf springs, tension springs or counterweights, by means of which the dead weight of the cantilever arm and equipment (bucket, gripper, chisel and others) is lifted based on force. An extension can be attached to the boom suspension, to which a counterweight (counterweight) is attached, the weight of which depends on the size of the boom arm with equipment. By neutralizing the cantilever's own weight, the basically necessary transport and the associated application of energy are no longer necessary. On the one hand, this frees up additional capacity and, on the other hand, it can save significant operating energy shares while the work remains the same.

Ausrüstung und Gegengewicht sind hierbei an einem gemeinsamen Stützbock auf dem Oberwagen gelagert, wobei ein Hydraulikstempel zwischen dem Oberwagen und der Ausrüstung vorgesehen ist, der ggf. mit einer Feder zusammenwirkt. Nachteilig ist hier festzustellen, daß infolge der geometrischen Anordnung sowie der Schwenkbarkeit des Gegengewichtes oberhalb des Oberwagens die Standsicherheit des Gerätes bei angehobenem Gegengewicht absolut in Frage gestellt ist.Equipment and counterweight are mounted on a common trestle on the superstructure, a hydraulic ram being provided between the superstructure and the equipment, which may interact with a spring. The disadvantage here is that due to the geometric arrangement and the pivoting of the counterweight above the superstructure, the stability of the device with the counterweight raised is absolutely in question.

Die DE-B 19 17 434 betrifft eine Maschine für Erdarbeiten, beispielsweise Bagger oder dgl., mit einer auf einem Fahrgestell angeordneten Dreheinrichtung, die einen das Arbeitsgerät und ein Gegengewicht enthaltenden Drehturm trägt. Zwischen der Dreheinrichtung und dem Drehturm ist eine vertikal ausgerichtete verstellbare Parallelogrammabstützung angeordnet, die aus zwei einenends an einer auf der Dreheinrichtung befindlichen Plattform und anderends an dem Drehturm gelenkig angeschlossen parallelen Armen besteht. Zwischen einem der Arme und der Plattform oder dem Drehturm ist eine Kolben-Zylinder-Vorrichtung angeordnet. Das Parallelogramm und somit die Verlagerung des Gegengewichtes bzw. Bauteilen des Oberwagens wird der jeweiligen Arbeitssituation bzw. dem Transportzweck jedesmal angepaßt, wodurch sich letztendlich, da keine Wirkverbindung zwischen Ausrüstung und Gegengewicht gegeben ist, ein verhältnismäßig großer Bauaufwand ergibt.DE-B 19 17 434 relates to a machine for earthworks, for example excavators or the like, with a rotating device arranged on a chassis, which carries a rotating tower containing the implement and a counterweight. Arranged between the rotating device and the rotating tower is a vertically aligned, adjustable parallelogram support which consists of two parallel arms articulated at one end to a platform located on the rotating device and at the other at the rotating tower. Between one of the arms and the platform or the turret a piston-cylinder device is arranged. The parallelogram and thus the shifting of the counterweight or components of the superstructure are adapted to the respective work situation or the transport purpose, which ultimately results in a relatively large construction effort since there is no operative connection between equipment and counterweight.

Die CA-A 1 008 407 betrifft eine Maschine für Erdarbeiten, insbesondere einen Hydraulikbagger. Der Bagger beinhaltet einen auf Raupen verfahrbaren Unterwagen, auf welchen ein Oberwagen über ein Verbindungselement drehbar gelagert ist. Am Oberwagen ist eine aus einem Auslegersystem und einer Schaufel bestehende Arbeitsausrüstung schwenkbar befestigt. Am dem Auslegersystem abgewandten Ende des Oberwagens ist ein verschiebbares Gegengewicht angeordnet, das über Hebeelemente mit dem Auslegersystem verbunden ist. Die Verschiebung des Gegengewichtes dient hierbei dem Zweck der Gewährleistung der Standsicherheit des Baggers bei überlangen Auslegersystemen, wobei das Gegengewicht beim Ausfahren des Auslegersystems diametral dazu verschoben wird.CA-A 1 008 407 relates to a machine for earthworks, in particular a hydraulic excavator. The excavator contains an undercarriage that can be moved on caterpillars, on which an upper carriage is rotatably mounted via a connecting element. Work equipment consisting of a boom system and a shovel is pivotally attached to the superstructure. A displaceable counterweight is arranged on the end of the superstructure facing away from the boom system and is connected to the boom system via lifting elements. The shifting of the counterweight serves the purpose of ensuring the stability of the excavator in the case of excessively long boom systems, the counterweight being shifted diametrically when the boom system is extended.

Ziel des Erfindungsgegenstandes ist es, eine Maschine für Erdarbeiten dahingehend weiterzubilden, daß die potentielle Energie des jeweiligen Arbeitszyklus mit einfachen konstruktiven Mitteln gespeichert wird, um sie beim nächsten Zyklus wieder sinnvoll einsetzen zu können.The aim of the subject matter of the invention is to develop a machine for earthworks in such a way that the potential energy of the respective work cycle is stored with simple constructive means in order to be able to use it sensibly again in the next cycle.

Dieses Ziel wird mit den Maßgaben des Kennzeichens des ersten Patentanspruches erreicht.This goal is achieved with the requirements of the characterizing part of the first claim.

Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind den Unteransprüchen zu entnehmen.Advantageous further developments of the subject matter of the invention can be found in the subclaims.

Der Erfindungsgegenstand läßt sich bei allen Maschinen für Erdarbeiten, insbesondere Seilbaggern, Hydraulikbaggern, Tieflöffel- und Ladeschaufelbaggern, sinnvoll einsetzen, wobei die Wippe in Abhängigkeit von dem jeweiligen Gerät entweder an einem Stützbock als einstückiges Bauteil verlagert ist oder aber eine Aufteilung der Ausrüstung und des schwenkbaren Teiles vorgenommen wird, die jede für sich an einem Stützbock gelagert und durch entsprechende Verbindungselemente, wie Seile, Ketten oder Hydraulikzylinder, untereinander verbunden werden.The subject of the invention can be used in a sensible manner in all machines for earthworks, in particular cable excavators, hydraulic excavators, backhoe and loading shovel excavators, the rocker depending on the particular device either being shifted to a support frame as a one-piece component or a division of the equipment and the swiveling part Part is made, each stored separately on a trestle and are connected to one another by corresponding connecting elements, such as ropes, chains or hydraulic cylinders.

Der Erfindungsgegenstand ist anhand eines Ausführungsbeispieles in der Zeichnung dargestellt und wird wie folgt beschrieben. Es zeigen:

Figuren 1 und 2 -
Ladeschaufelbagger mit verschiedenen Stellungen der Ausrüstung als Prinzipskizze
Figuren 3 und 4 -
Prinzipskizze eines Tieflöffelbaggers mit verschiedenen Stellungen der Ausrüstung
The subject matter of the invention is illustrated in the drawing using an exemplary embodiment and is described as follows. Show it:
Figures 1 and 2 -
Bucket excavator with various positions of the equipment as a schematic diagram
Figures 3 and 4 -
Schematic diagram of a backhoe with various positions of the equipment

Die Figuren 1 und 2 zeigen als Prinzipskizze einen als Ladeschaufelbagger ausgebildeten Hydraulikbagger 1, der im wesentlichen aus folgenden Komponenten aufgebaut ist:
einem mit einem Raupenfahrwerk 2 verbundenen Unterwagen 3, einem Drehkranz 4, einem stationären Oberwagenteil 5 samt Fahrerhaus 6, wobei der Oberwagen 5 um die Vertikalachse 7 gegenüber dem Unterwagen 3 schwenkbar ist. Ein aus den Komponenten Motor 8, Gegengewicht 9 sowie die hier nicht dargestellte Hydraulik bestehender schwenkbarer Teil 10 ist eine Art Wippe bildend mit der Arbeitsausrüstung 11 verbunden, die im Bereich ihres freien Endes die Ladeschaufel 12 trägt. Die Bauteile 10 und 11 sind somit um eine hier nur angedeutete gemeinsame Horizontalachse 13 schwenkbar, gleichzeitig jedoch zusammen mit dem stationären Oberwagenteil 5 um die Vertikalachse 7 drehbar. Die Null-Lage des schwenkbaren Teiles 10 ist hierbei durch die gestrichelte Linie 14 angedeutet und der vertikale Abstand zwischen dieser Null-Lage 14 und der Oberkante 14' des Unterwagens 3 ist mit V bezeichnet. Infolge dieses vertikalen Abstandes kann ein Schwenkwinkel alpha von mehr als 45° erreicht werden.FIGS. 1 and 2 show a schematic diagram of a hydraulic excavator 1 designed as a loading shovel excavator, which is essentially composed of the following components:
an undercarriage 3 connected to a crawler chassis 2, a slewing ring 4, a stationary uppercarriage part 5 together with the driver's cab 6, the uppercarriage 5 being pivotable about the vertical axis 7 relative to the undercarriage 3. A pivotable part 10 consisting of the components motor 8, counterweight 9 and the hydraulic system, not shown here, is connected to the work equipment 11, forming a kind of rocker, which carries the loading shovel 12 in the region of its free end. The components 10 and 11 can thus be pivoted about a common horizontal axis 13, which is only indicated here, but at the same time can be rotated about the vertical axis 7 together with the stationary superstructure part 5. The zero position of the pivotable part 10 is indicated by the dashed line 14 and the vertical distance between this zero position 14 and the upper edge 14 'of the undercarriage 3 is denoted by V. As a result of this vertical distance, a swivel angle alpha of more than 45 ° can be achieved.

Die Aufteilung des Schwenkwinkels alpha beträgt hierbei etwa 1/2, d.h. der Schwenkwinkel des schwenkbaren Teiles 10, bezogen auf die Null-Lage 14, nach oben ist doppelt so hoch wie nach unten. Der Abstand a des Schwerpunktes 15 des schwenkbaren Teiles 10 zur in dieser Darstellung als Kippunkt 35 bezeichneten Kippachse bildet zum Abstand b des Schwerpunktes 16 der Ausrüstung 11 zum Kippunkt 35 das Verhältnis a/b > 1.

Figure imgb0001
Das Höhen-Gewichtsverhältnis des schwenkbaren Teiles 10 zur Ausrüstung 11 entspricht in diesem Beispiel etwa dem Wert h a x m a / h b x m b = ca. 0,7.
Figure imgb0002
 The division of the pivot angle alpha is approximately 1/2, ie the pivot angle of the pivotable part 10, based on the zero position 14, is twice as high as down. The distance a from the center of gravity 15 of the pivotable part 10 to the tilting axis referred to in this illustration as the tipping point 35 forms the ratio to the distance b from the center of gravity 16 of the equipment 11 to the tipping point 35 a / b> 1.
Figure imgb0001
 The height-weight ratio of the pivotable part 10 to the equipment 11 corresponds approximately to the value in this example H a xm a / H b xm b = approx. 0.7.
Figure imgb0002

Die Figuren 3 und 4 zeigen als Prinzipskizze den Oberwagenbereich 17 eines Tieflöffelbaggers, wobei der Oberwagenbereich 17 gebildet wird aus einem stationären, um eine nur angedeutete Vertikalachse 20 drehbaren Teil 19, der mit zwei Stützböcken 21,22 versehen ist. Der hier nur angedeutete schwenkbare Teil 23 ist um die Horizontalachse 24 des Stützbockes 22 und die mit dem Tieflöffel 25 zusammenwirkende Ausrüstung 26 ist um die Horizontalachse 27 des Stützbockes 21 schwenkbar. Im Bereich des Stützbockes 22 ist ein erhöhter Bereich 28 vorgesehen, der eine Umlenkscheibe 29 trägt, um welche ein an Anlenkpunkten 30 sowie 31 einerseits an der Ausrüstung 26 und andererseits am schwenkbaren Teil 23 befestigtes Seil 32 umlenkbar ist. Der Abstand c des Schwerpunktes 36 des schwenkbaren Teiles 23 zur in dieser Darstellung als Kippunkt 37 bezeichneten Kippachse bildet zum Abstand d des Schwerpunktes 38 der Ausrüstung 26 zum Kippunkt 37 das Verhältnis c/d > 1.

Figure imgb0003
Auch hier beträgt das Höhen-Gewichtsverhältnis des schwenkbaren Teiles 23 zur Ausrüstung 26 h a x m a / h b x m b = ca. 0,7
Figure imgb0004
 wobei der Schwenkwinkel alpha bei etwa 45° liegt.FIGS. 3 and 4 show a schematic diagram of the uppercarriage area 17 of a backhoe excavator, the uppercarriage area 17 being formed from a stationary part 19 which can be rotated about an indicated vertical axis 20 and which is provided with two support brackets 21, 22. The pivotable part 23, which is only indicated here, can be pivoted about the horizontal axis 24 of the support bracket 22 and the equipment 26 which interacts with the backhoe bucket 25 can be pivoted about the horizontal axis 27 of the support bracket 21. In the area of the support frame 22, an elevated area 28 is provided, which carries a deflection disk 29, around which a cable 32 attached to articulation points 30 and 31 on the one hand on the equipment 26 and on the other hand on the pivotable part 23 can be deflected. The distance c from the center of gravity 36 of the pivotable part 23 to the tilt axis referred to in this illustration as the tipping point 37 forms the ratio to the distance d from the center of gravity 38 of the equipment 26 to the tipping point 37 c / d> 1.
Figure imgb0003
 The height-to-weight ratio of the pivotable part 23 to the equipment 26 is also here H a xm a / H b xm b = approx. 0.7
Figure imgb0004
 the swivel angle alpha is approximately 45 °.

Figur 4 zeigt noch in angedeuteter Weise den mit einem Raupenfahrwerk 33 ausgerüsteten Unterwagen 34.FIG. 4 shows the undercarriage 34 equipped with a crawler chassis 33 in a hinted manner.

Claims (12)

  1. Earth working machine, such as a cable digger, a hydraulic digger, a shovel excavator (18), a loader (1), having an undercarriage (3, 34), on which is mounted a superstructure (5, 17), on which there is provided work equipment (11, 26) that is in operative connection with a counterweight (9), characterised in that the superstructure consists of two constructional units (5, 17; 10, 23) that are connected to one another through a horizontal axis (13, 24) and are movable in relation to one another about that axis, and one of those constructional units (10, 23) includes at least the counterweight (9) and is coupled mechanically for movement in the same sense as the work equipment (11, 26), as a result of which the height of that constructional unit can be altered.
  2. Machine according to claim 1, characterised in that the stationary part (5, 17) is formed substantially by the components: slewing ring (4), a supporting frame (21, 22) and also a driver's cab (6).
  3. Machine according to either of claims 1 and 2, characterised in that the pivotable part (10, 23) contains the components: motor (8), hydraulic system and counterweight (9).
  4. Machine according to any one of claims 1 to 3, characterised in that the pivotable part (10, 23) is pivotable from its horizontal zero position by at least 45° relative to the undercarriage (3, 34) or the superstructure (5, 17).
  5. Machine according to any one of claims 1 to 4, characterised in that the distribution of the pivoting angle (α), based on the horizontal zero position (14) of the pivotable part (10, 23), satisfies the formula α1/α2 = 1/2
    Figure imgb0009
     wherein
    α1 is the pivoting angle by which the pivotable part (10, 23) pivots upwards, and
    α2 is the pivoting angle by which the pivotable part (10, 23) pivots downwards.
  6. Machine according to any one of claims 1 to 5, characterised in that in a loader (1) the ratio of the distance (a) of the centre of gravity (15) of the pivotable part (10) from the tilting axis (35) of the loader (1) to the distance (b) of the centre of gravity (16) of the equipment (11) from the tilting axis (35) is a/b >= 1.
    Figure imgb0010
  7. Machine according to any one of claims 1 to 5, characterised in that in a shovel excavator (18) the ratio of the distance (c) of the centre of gravity (36) of the pivotable part (23) from the tilting axis (37) of the excavator (18) to the distance (d) of the centre of gravity (38) of the equipment (26) from the tilting axis (35) is c/d >= 1.
    Figure imgb0011
  8. Machine according to any one of claims 1 to 7, characterised in that the height/weight ratio of the pivotable part (10, 23) relative to the equipment (11, 26) is h a x m a / (h b x m b ) = approx. 0.7
    Figure imgb0012
     wherein
    ha is the distance of the centre of gravity (15) of the pivotable part (10, 23), when in a raised position, from the horizontal zero position (14) of the pivotable part (10, 23),
    ma is the weight of the pivotable part (10, 23),
    hb is the distance of the centre of gravity (16) of the equipment (11, 26), when in a resting position, from the centre of gravity (16) in the raised position of the equipment (11, 26), and
    mb is the weight of the equipment (11, 26) together with the load.
  9. Machine according to any one of claims 1 to 8, characterised in that the equipment (26) is indirectly connected, so as to form a kind of rocker, to the pivotable part (23) in such a manner that both the equipment (26) and the pivotable part (23) are mounted on separate supporting frames (21, 22) and are connected to one another by means of corresponding connecting and/or transmission elements (32).
  10. Machine according to any one of claims 1 to 8, characterised in that the equipment (11) is directly connected, so as to form a kind of rocker, to the pivotable part (10) in such a manner that the horizontal pivoting axis (13) is provided in the region of the common supporting frame.
  11. Machine according to claim 9, characterised in that the connecting and/or transmission elements are formed by at least one cable (32), chain or the like, which elements are guided in the region of one of the supporting frames (21, 22) and have coupling points (30, 31) both in the region of the equipment (26) and in the region of the pivotable part (23).
  12. Machine according to claim 9, characterised in that the connecting and/or transmission elements are formed by at least one hydraulic cylinder that is arranged in the region between the stationary part of the superstructure (5, 17) and the pivotable part (10, 23) and is in operative connection with the hydraulic piston that actuates the equipment (11, 26).
EP93921901A 1992-10-07 1993-10-01 Earth-moving machine with revolving tower and adjustable counterweight Expired - Lifetime EP0663034B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4233730 1992-10-07
DE4233730A DE4233730C2 (en) 1992-10-07 1992-10-07 Earthworks machine
PCT/EP1993/002691 WO1994008101A1 (en) 1992-10-07 1993-10-01 Earth-moving machine with revolving tower and adjustable counterweight

Publications (2)

Publication Number Publication Date
EP0663034A1 EP0663034A1 (en) 1995-07-19
EP0663034B1 true EP0663034B1 (en) 1997-01-15

Family

ID=6469863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93921901A Expired - Lifetime EP0663034B1 (en) 1992-10-07 1993-10-01 Earth-moving machine with revolving tower and adjustable counterweight

Country Status (5)

Country Link
US (1) US5533284A (en)
EP (1) EP0663034B1 (en)
JP (1) JPH08501846A (en)
DE (2) DE4233730C2 (en)
WO (1) WO1994008101A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19532975C2 (en) * 1995-09-07 1997-11-20 O & K Mining Gmbh Earthworks machine
US6025686A (en) * 1997-07-23 2000-02-15 Harnischfeger Corporation Method and system for controlling movement of a digging dipper
CN2668706Y (en) * 2004-04-29 2005-01-05 杨双来 Digging machine
DE102011105522A1 (en) 2011-06-22 2012-12-27 Thomas Sauer Excavator e.g. hydraulic excavator, has operative connection unit provided between rear upper platform side deflection bearing and work equipment side deflection bearing in construction of diverter or in construction of hydraulic cylinders
US20140137444A1 (en) * 2012-11-16 2014-05-22 Caterpillar Inc. Loader bucket with counterweight
US20160122980A1 (en) * 2013-08-05 2016-05-05 Kawasaki Jukogyo Kabushiki Kaisha Construction machine energy regeneration apparatus
US9587377B2 (en) * 2015-02-06 2017-03-07 Harnischfeger Technologies, Inc. Raised counterweight for a mining machine
US10362738B2 (en) * 2015-09-10 2019-07-30 Komatsu Ltd. Work vehicle
CN106429881B (en) * 2016-11-30 2018-04-13 魏伍强 Energy-saving lifting gear
CN108643273B (en) * 2018-07-09 2023-11-28 三一重机有限公司 Locating pin, counterweight locating structure, assembly method and excavator
NL2022575B1 (en) * 2019-02-14 2020-08-28 Ihc Holland Ie Bv Counterweight Backhoe dredger
WO2021012630A1 (en) * 2019-07-20 2021-01-28 董志强 Energy-saving excavator
DE102020113815A1 (en) 2020-05-22 2021-11-25 Marcel Hett Hydraulic mobile excavator

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408500A (en) * 1944-09-13 1946-10-01 Maxwell A West Automatic counterbalance for boom derricks
DE1288993B (en) * 1964-09-17 1969-02-06 Weserhuette Ag Eisenwerk Hydraulically powered excavator
GB1110475A (en) * 1965-12-17 1968-04-18 Beteiligungs & Patentverw Gmbh Counterbalanced boom
US3653486A (en) * 1970-07-17 1972-04-04 Dravo Corp Material handling apparatus
CA1008407A (en) * 1974-08-16 1977-04-12 Bernard Desourdy Excavation shovel and the like apparatus
US4172529A (en) * 1976-09-09 1979-10-30 Pyramid Manufacturing Company--a division of Precorp Crane
IE53963B1 (en) * 1981-10-21 1989-04-26 Priestman Brothers Earthmoving machine
US4402413A (en) * 1981-11-19 1983-09-06 J. I. Case Company Counterweight arrangement
DE3232163A1 (en) * 1982-08-30 1984-03-01 Gretchen 2957 Westoverledingen Jagst Hydraulically driven excavator
US4557390A (en) * 1983-09-01 1985-12-10 Fmc Corporation Suspended counterweight control system
GB8430389D0 (en) * 1984-12-01 1985-01-09 Bamford Excavators Ltd Earth moving machine

Also Published As

Publication number Publication date
JPH08501846A (en) 1996-02-27
DE4233730C2 (en) 1994-10-06
WO1994008101A1 (en) 1994-04-14
DE4233730A1 (en) 1994-04-14
DE59305174D1 (en) 1997-02-27
US5533284A (en) 1996-07-09
EP0663034A1 (en) 1995-07-19

Similar Documents

Publication Publication Date Title
EP0663034B1 (en) Earth-moving machine with revolving tower and adjustable counterweight
DE2433919A1 (en) CONSTRUCTION MACHINE
DE2501329A1 (en) CONSTRUCTION MACHINE
DE3705883C2 (en)
DE2823822A1 (en) EXCAVATOR
DE102005027596B4 (en) Railway crane
DE2430008C2 (en) Backhoe excavator
DE4409514C2 (en) Adjustable counterweight for a construction machine and hydraulic excavator, which is equipped with an adjustable counterweight
DE69933641T2 (en) Method of lifting and device with hoist mounted lifting hoist
DE2013849A1 (en) Backhoe
DE2900410A1 (en) DEEP BUCKET EXCAVATOR
DE19541867C1 (en) Device for lifting, lowering and levelling out booms of open-pit mining
DE2164623B2 (en) DEVICE FOR BREAKING OUT AN OVEN SHEET
DE102016106432B4 (en) Working machine in the form of an excavator or crane
DE7702842U1 (en) EXCAVATOR
DE2429659A1 (en) BUCKET EXCAVATORS, IN PARTICULAR DEEP BUCKET EXCAVATORS
DE7630587U1 (en) SHOVEL LOADERS, ESPECIALLY FOR UNDERGROUND MINING
DE19532975C2 (en) Earthworks machine
DE2063511A1 (en) Hydraulically operated excavator
EP0294843B1 (en) Excavator
DE4006860A1 (en) Slewing all-wheel-drive crane - incorporates derricking joint slewing ring coaxially one above the other
DE2431114A1 (en) CIVIL ENGINEERING MACHINE, IN PARTICULAR SHOVEL LOADER
DE2012731C3 (en) Backhoe backhoe
DE10020270B4 (en) Crawler crane
DE4219720A1 (en) Excavator for reducing heave in tunnel floors or mine workings - consists of tracked vehicle mounting full circle slewing jib with excavator shovel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19941007

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19960328

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: O & K MINING GMBH

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

REF Corresponds to:

Ref document number: 59305174

Country of ref document: DE

Date of ref document: 19970227

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19970417

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990921

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19991018

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19991022

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001106

Year of fee payment: 8

BERE Be: lapsed

Owner name: O & K MINING G.M.B.H.

Effective date: 20001031

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20001001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010629

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051001