EP0033966B1 - Excavating bucket - Google Patents

Excavating bucket Download PDF

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Publication number
EP0033966B1
EP0033966B1 EP81100893A EP81100893A EP0033966B1 EP 0033966 B1 EP0033966 B1 EP 0033966B1 EP 81100893 A EP81100893 A EP 81100893A EP 81100893 A EP81100893 A EP 81100893A EP 0033966 B1 EP0033966 B1 EP 0033966B1
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EP
European Patent Office
Prior art keywords
excavator bucket
box girder
disc plates
tilting device
hydraulic cylinders
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
Application number
EP81100893A
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German (de)
French (fr)
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EP0033966A3 (en
EP0033966A2 (en
Inventor
Martin Kremmer
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.)
Bsg Handels-Gmbh fur Baumaschinen-Verschleissteile
Original Assignee
Bsg Handels-Gmbh fur Baumaschinen-Verschleissteile
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Application filed by Bsg Handels-Gmbh fur Baumaschinen-Verschleissteile filed Critical Bsg Handels-Gmbh fur Baumaschinen-Verschleissteile
Priority to AT81100893T priority Critical patent/ATE7522T1/en
Publication of EP0033966A2 publication Critical patent/EP0033966A2/en
Publication of EP0033966A3 publication Critical patent/EP0033966A3/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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets

Definitions

  • the invention relates to a digging vessel, in particular a trench clearing bucket, for excavators and similar construction machines, with a fastening device arranged centrally on its upper side, which contains a holder for connection to the boom of a construction machine and a tilting device arranged between the holder and the upper side of the digging vessel.
  • a fastening device arranged centrally on its upper side, which contains a holder for connection to the boom of a construction machine and a tilting device arranged between the holder and the upper side of the digging vessel.
  • which essentially consists of a rotary bearing arranged with its axis of rotation in the longitudinal direction of the boom and a hydraulic cylinder device which is connected in an articulated manner between the top of the digging vessel and the holder, the hydraulic cylinder device being connected with its fastening device-side end below the rotary bearing.
  • Such a burial vessel is described in US-A-32 89 866.
  • a hydraulic cylinder provided, which is articulated with its end on the side of the digging vessel directly adjacent to one of the two side walls on the top of the digging vessel and is also articulated with its end on the side of the attachment device also articulated to a support arm attached to the side of the boom, this attachment point below the pivot bearing lies.
  • the hydraulic cylinder with its piston rod extends almost over the entire width of the digging vessel.
  • a disadvantage of this known embodiment is that the hydraulic cylinder, in particular the piston rod, which is sensitive to external mechanical influences, is unprotected against damage caused by boulders and rocks during work, so that hydraulic cylinders arranged directly reach the working area of the digging shovel.
  • the object of the invention is to design the fastening device with holder and tilting device and the hydraulic cylinders causing the tilting movement in a digging vessel, in particular a digging bucket, for excavators and similar construction machines such that the hydraulic cylinders with their piston rods and the associated hydraulic hoses, which are particularly sensitive to mechanical environmental influences in particular are almost completely protected or integrated into the burial vessel, and in particular the disadvantages listed above are avoided.
  • the top of the digging vessel is designed as a box girder in a digging vessel of the type mentioned and the hydraulic cylinder device consists of two hydraulic cylinders, which are each arranged laterally within the box girder of the fastening device, the fastening device-side ends between the pivot bearing and the The top of the grave vessel or the lower flange of the box girder and in the vertical plane of the boom axis passing through the pivot bearing are arranged.
  • This configuration according to the invention ensures that the hydraulic cylinders are completely protected against environmental influences and, in addition, the stability of the digging vessel is increased.
  • the tilting device is essentially formed from two circular flanges, which are arranged perpendicular to the plane of the cantilever axis and at a distance from one another and are designed as plate disks and are fastened to the holder, in the center of the circle of which the axis of rotation of the rotary bearing is arranged and which in turn are in two the plates are arranged in parallel, attached to the top of the grave flaps mounted.
  • the plate-shaped design of the tilting device results in a greater distance between the top of the grave vessel and the pivot bearing of the tilting device than is the case with the known devices.
  • the two hydraulic cylinders are connected in an articulated manner with their digging vessel-side ends adjacent to the side walls of the digging vessel on the upper side thereof and also articulately connected with their ends on the tilting device side at a radial distance from the axis of rotation of the tilting device to one of the plate disks.
  • This design of the tilting device enables, in particular, the arrangement of the hydraulic cylinders almost parallel to the top of the digging vessel.
  • the hydraulic cylinders are advantageously attached to one of the two plate disks with their ends on the tilting device side. This results in a more uniform distribution of the forces to be transmitted from the hydraulic cylinders to the tilting device or holder.
  • the two hydraulic cylinders are connected in an articulated manner with their digging-vessel ends adjacent to the side walls of the digging vessel within the hollow box girder to the upper flange thereof and also articulated with their ends on the tipping device side at a radial distance from the axis of rotation of the tilting device on the plate disks.
  • This attachment of the ends of the two hydraulic cylinders on the digging vessel side to the upper flange of the hollow box girder significantly increases the maintenance freedom of the digging vessel, since any deposits on the lower flange of the hollow box girder are caused by the recesses for the plate washers in the upper flange in the Hohlka can be penetrated, the mobility of the hydraulic cylinder at their digging vessel-side attachment ends can not hinder.
  • the diameters of the plate disks are advantageously reduced in their two areas between the attachment point of the ends of the hydraulic cylinder on the tilting device side on the plate disks and the attachment point of the plate disks on the holder.
  • the recesses to be provided in the upper flange of the box girder for the plate washers can be kept relatively small, thereby reducing the possibility of dirt, etc. penetrating into the box girder.
  • the top flange of the hollow box girder has a corresponding recess in the area of the plate washers, through which the plate washers protrude into the cavity of the box girder.
  • the recess in the top chord of the box girder can be reduced to two slits which let the plate washers protrude into the box girder.
  • openings are provided in the rear of the box girder facing the construction machine, which openings can be covered by appropriately designed lids.
  • the figures show a grave vessel 1 in the special embodiment of a grave clearing bucket with a fastening device 2, which can be connected to the boom of a construction machine, in particular an excavator.
  • the fastening device 2 is arranged centrally on the upper side 3 of the digging vessel 1 and contains a holder 4 provided for fastening to the excavator boom and a tilting device 5 arranged between this holder 4 and the upper side 3 of the digging vessel 1.
  • the top 3 of the grave vessel 1 is designed as a hollow box girder 6 with an upper flange 7, a lower flange 8 and a front web 9 and a rear web 10.
  • This design of the top of the grave vessel, completed by the side walls 11 and 12, serves, in addition to increasing the static moment of resistance, in particular to accommodate essential parts of the tilting device 5.
  • the tilting device 5 consists of two circular flanges, which are arranged underneath the holder 4, perpendicular to the plane of the cantilever axis 13 and at a distance one behind the other, and are designed as plate disks 14 and 15.
  • the axis of rotation 16 of a rotary bearing 17 is arranged, which in turn is mounted in two brackets 18 and 19, which are arranged in parallel with the plate disks 14 and 15 and are fastened on the top flange 7 of the hollow box girder 6 of the digging vessel 1.
  • the tabs 18 and 19 can also be extended parts of the front and rear webs 9 and 10, which are led upwards via the top chord 7.
  • the upper flange 7 of the hollow box girder 6 has a separate slot 21 and 22 in the area of the plate washers 14 and 15, as a result of which the plate washers can protrude freely into the interior of the hollow box girder 6.
  • two hydraulic cylinders 23 and 24 are installed in an approximately horizontal position when the digging vessel 1 is not pivoted out.
  • the respective ends 25 and 26 of the hydraulic cylinders 23 and 24 on the digging vessel side are fastened in an articulated manner near the side walls 11 and 12 of the digging vessel 1 on the inside of the lower flange 8, on the other hand, the ends 27 and 28 of the two hydraulic cylinders on the tipping device side are at a radial distance from the axis of rotation 16 of the pivot bearing 17 each also articulated on one of the two plate washers 14 and 15.
  • the plate washers 14 'and 15' are in this Embodiment significantly reduced in diameter, except in the area of the attachment point 31 ', in which the tilting device ends 27' and 28 'of the hydraulic cylinders are articulated.
  • the reduced embodiment of the plate washers 14 'and 15' ensures that the recesses 20 in the upper flange 7 'of the hollow box girder 6' can be made significantly smaller than in the first embodiment and thus makes it more difficult for dirt, etc. to enter the hollow box girder becomes.
  • the digging vessel 1 is pivoted about the axis of rotation 16 of the fastening device 2.
  • the rear web 10 of the hollow box girder 6 has openings which are closed with corresponding covers 29 (see FIG. 4) and, if necessary, allow maintenance of the hydraulic cylinders 23 or 24 and corresponding hydraulic lines 30.
  • hydraulic lines 30 end in connections 31, which are arranged directly in the rotating area of the fastening device and can accommodate the construction parts on the machine side.

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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)
  • Load-Engaging Elements For Cranes (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

1. An excavator bucket (1), in particular a ditch-clearing shovel, for an excavator or the like machinery, attachment fixture (2) which incorporates a mounting (4) for connection to the boom of an item of construction machinery and a tilting device (5) which is located between the mounting (4) and the top (3) of the excavator bucket (1), the tilting device essentially comprising a pivot bearing (17) arranged with its pivot axis (16) in the longitudinal direction of the boom and a hydraulic cylinder arrangement connected between the top (3) of the excavator bucket (1) and the mounting (4) in a manner permitting articulation, the hydraulic cylinder arrangement being connected beneath the pivot bearing (17) by means of its end which is located close to the attachement fixture, characterized in that the top (3) of the excavator bucket (1) is designed as a hollow box girder (6) and the hydraulic cylinder arrangement comprises two hydraulic cylinders (23 and 24) which are arranged inside this hollow box girder (6), one on either side of the attachment fixture (2), the ends (27 and 28 respectively) closer to the attachment fixture being located between the pivot bearing (17) and the top (3) of the excavate bucket or, as the case may be, a lower flange (8) of the hollow box girder (6), and in the vertial plane of the boom axis (13) passing through the pivot bearing (17).

Description

Die Erfindung betrifft ein Grabgefäß, insbesondere einen Grabenräumlöffel, für Bagger und ähnliche Baumaschinen, mit einer, auf seiner Oberseite mittig angeordneten Befestigungsvorrichtung, die eine Halterung zum Anschluß an den Ausleger einer Baumaschine und eine, zwischen Halterung und der Oberseite des Grabgefäßes angeordnete Kippvorrichtung enthält, welche im wesentlichen aus einem mit seiner Drehachse in Längsrichtung des Auslegers angeordneten Drehlager und einer, zwischen der Oberseite des Grabgefäßes und der Halterung gelenkig angeschlossenen Hydraulikzylindervorrichtung besteht, wobei die Hydraulikzylindervorrichtung mit ihrem befestigungsvorrichtungsseitigen Ende unterhalb des Drehlagers angeschlossen ist.The invention relates to a digging vessel, in particular a trench clearing bucket, for excavators and similar construction machines, with a fastening device arranged centrally on its upper side, which contains a holder for connection to the boom of a construction machine and a tilting device arranged between the holder and the upper side of the digging vessel. which essentially consists of a rotary bearing arranged with its axis of rotation in the longitudinal direction of the boom and a hydraulic cylinder device which is connected in an articulated manner between the top of the digging vessel and the holder, the hydraulic cylinder device being connected with its fastening device-side end below the rotary bearing.

Ein solches Grabgefäß ist in der US-A-32 89 866 beschrieben. Dort ist lediglich ein Hydraulikzylinder vorgesehen, welcher mit seinem grabgefäßseitigen Ende unmittelbar benachbart zu einer der beiden Seitenwände an der Oberseite des Grabgefäßes gelenkig befestigt und mit seinem befestigungsvorrichtungsseitigen Ende ebenfalls gelenkig an einem, am Ausleger seitlich befestigten Tragarm angeschlossen ist, wobei dieser Befestigungspunkt unterhalb des Drehlagers liegt. Darüber hinaus erstreckt sich der Hydraulikzylinder mit seiner Kolbenstange nahezu über die gesamte Breite des Grabgefäßes.Such a burial vessel is described in US-A-32 89 866. There is only a hydraulic cylinder provided, which is articulated with its end on the side of the digging vessel directly adjacent to one of the two side walls on the top of the digging vessel and is also articulated with its end on the side of the attachment device also articulated to a support arm attached to the side of the boom, this attachment point below the pivot bearing lies. In addition, the hydraulic cylinder with its piston rod extends almost over the entire width of the digging vessel.

Nachteilig bei dieser bekannten Ausführung ist, daß der Hydraulikzylinder, insbesondere die gegen äußere, mechanische Einwirkungen empfindliche Kolbenstange ungeschützt gegen Beschädigungen durch Erd- und Felsbrocken während des Arbeitseinsatzes ist, so angeordnete Hydraulikzylinder unmittelbar in den Arbeitsbereich der Grabschaufel gelangen.A disadvantage of this known embodiment is that the hydraulic cylinder, in particular the piston rod, which is sensitive to external mechanical influences, is unprotected against damage caused by boulders and rocks during work, so that hydraulic cylinders arranged directly reach the working area of the digging shovel.

Häufiges Auswechseln der beschädigten Hydraulikzylinder hat längere Ausfallzeiten der Baumaschine zur Folge und ist deshalb kostennachteilig.Frequent replacement of the damaged hydraulic cylinders results in longer downtimes for the construction machine and is therefore disadvantageous in terms of costs.

Aufgabe der Erfindung ist es, bei einem Grabgefäß, insbesondere einem Grabräumlöffel, für Bagger und ähnliche Baumaschinen die Befestigungsvorrichtung mit Halterung und Kippvorrichtung und den die Kippbewegung bewirkenden Hydraulikzylindern so auszubilden, daß die gegen insbesondere mechanische Umwelteinflüsse besonders empfindlichen Hydraulikzylinder mit ihren Kolbenstangen und den zugehörigen Hydraulikschläuchen nahezu vollständig geschützt bzw. in das Grabgefäß integriert sind, und insbesondere die vorstehend aufgeführten Nachteile vermieden werden.The object of the invention is to design the fastening device with holder and tilting device and the hydraulic cylinders causing the tilting movement in a digging vessel, in particular a digging bucket, for excavators and similar construction machines such that the hydraulic cylinders with their piston rods and the associated hydraulic hoses, which are particularly sensitive to mechanical environmental influences in particular are almost completely protected or integrated into the burial vessel, and in particular the disadvantages listed above are avoided.

Diese Aufgabe wird dadurch gelöst, daß bei einem Grabgefäß der eingangs genannten Art die Oberseite des Grabgefäßes als Hohlkastenträger ausgebildet ist und die Hydraulikzylindervorrichtung aus zwei Hydraulikzylindern besteht, die innerhalb dieses Hohlkastenträgers jeweils seitlich der Befestigungsvorrichtung angeordnet sind, wobei die befestigungsvorrichtungsseitigen Enden zwischen dem Drehlager und der Oberseite des Grabgefäßes bzw. dem Untergurt des Hohlkastenträgers und in der durch das Drehlager hindurchgehenden vertikalen Ebene der Auslegerachse angeordnet sind.This object is achieved in that the top of the digging vessel is designed as a box girder in a digging vessel of the type mentioned and the hydraulic cylinder device consists of two hydraulic cylinders, which are each arranged laterally within the box girder of the fastening device, the fastening device-side ends between the pivot bearing and the The top of the grave vessel or the lower flange of the box girder and in the vertical plane of the boom axis passing through the pivot bearing are arranged.

Durch diese erfindungsgemäße Ausbildung wird erreicht, daß die Hydraulikzylinder vollständig geschützt gegenüber umwelteinflüssen sind und darüber hinaus die Stabilität des Grabgefäßes erhöht wird.This configuration according to the invention ensures that the hydraulic cylinders are completely protected against environmental influences and, in addition, the stability of the digging vessel is increased.

In vorteilhafter Weiterbildung ist die Kippvorrichtung im wesentlichen aus zwei, senkrecht zur Ebene der Auslegerachse und im Abstand hintereinander angeordnete, als Tellerscheiben ausgebildete kreisförmige und an der Halterung befestigte Flansche gebildet, in deren Kreismittelpunkt die Drehachse des Drehlagers angeordnet ist und welche wiederum in zwei, zu den Tellerscheiben parallel angeordnete, auf der Oberseite des Grabgefäßes befestigten Laschen gelagert ist.In an advantageous further development, the tilting device is essentially formed from two circular flanges, which are arranged perpendicular to the plane of the cantilever axis and at a distance from one another and are designed as plate disks and are fastened to the holder, in the center of the circle of which the axis of rotation of the rotary bearing is arranged and which in turn are in two the plates are arranged in parallel, attached to the top of the grave flaps mounted.

Durch die tellerförmige Ausbildung der Kippvorrichtung ergibt sich ein größerer Abstand zwischen der Oberseite des Grabgefäßes und dem Drehlager der Kippvorrichtung, als es bei den bekannten Vorrichtungen der Fall ist.The plate-shaped design of the tilting device results in a greater distance between the top of the grave vessel and the pivot bearing of the tilting device than is the case with the known devices.

Vorteilhaft sind die beiden Hydraulikzylinder mit ihren grabgefäßseitigen Enden benachbart zu den Seitenwänden des Grabgefäßes auf dessen Oberseite gelenkig angeschlossen und mit ihren kippvorrichtungsseitigen Enden ebenfalls gelenkig in radialem Abstand von der Drehachse der Kippvorrichtung an einer der Tellerscheiben angeschlossen.Advantageously, the two hydraulic cylinders are connected in an articulated manner with their digging vessel-side ends adjacent to the side walls of the digging vessel on the upper side thereof and also articulately connected with their ends on the tilting device side at a radial distance from the axis of rotation of the tilting device to one of the plate disks.

Diese Ausbildung der Kippvorrichtung ermöglicht insbesondere die Anordnung der Hydraulikzylinder nahezu parallel zu der Oberseite des Grabgefäßes.This design of the tilting device enables, in particular, the arrangement of the hydraulic cylinders almost parallel to the top of the digging vessel.

Vorteilhaft sind die Hydraulikzylinder mit ihren kippvorrichtungsseitigen Enden jeweils an einer der beiden Tellerscheiben befestigt. Hierdurch ergibt sich eine gleichmäßigere Verteilung der von den Hydraulikzylindern auf die Kippvorrichtung bzw. Halterung zu übertragenden Kräfte.The hydraulic cylinders are advantageously attached to one of the two plate disks with their ends on the tilting device side. This results in a more uniform distribution of the forces to be transmitted from the hydraulic cylinders to the tilting device or holder.

In vorteilhafter Weiterbildung der Erfindung sind die beiden Hydraulikzylinder mit ihren grabgefäßseitigen Enden benachbart zu den Seitenwänden des Grabgefäßes innerhalb des Hohlkastenträgers an dessen Obergurt gelenkig angeschlossen und mit ihren kippvorrichtungsseitigen Enden ebenfalls gelenkig in radialem Abstand von der Drehachse der Kippvorrichtung an den Tellerscheiben angeschlossen.In an advantageous development of the invention, the two hydraulic cylinders are connected in an articulated manner with their digging-vessel ends adjacent to the side walls of the digging vessel within the hollow box girder to the upper flange thereof and also articulated with their ends on the tipping device side at a radial distance from the axis of rotation of the tilting device on the plate disks.

Diese Befestigung der grabgefäßseitigen Enden der beiden Hydraulikzylinder am Obergurt des Hohlkastenträgers erhöht die Wartungsfreiheit des Grabgefäßes wesentlich, da eventuelle Ablagerungen auf dem Untergurt des Hohlkastenträgers welche durch die Ausnehmungen für die Tellerscheiben im Obergurt in den Hohlkastenträger eingedrungen sein können, die Beweglichkeit der Hydraulikzylinder an ihrem grabgefäßseitigen Befestigungsenden nicht behindern können.This attachment of the ends of the two hydraulic cylinders on the digging vessel side to the upper flange of the hollow box girder significantly increases the maintenance freedom of the digging vessel, since any deposits on the lower flange of the hollow box girder are caused by the recesses for the plate washers in the upper flange in the Hohlka can be penetrated, the mobility of the hydraulic cylinder at their digging vessel-side attachment ends can not hinder.

Vorteilhaft sind die Tellerscheiben in ihren beiden, zwischen der Befestigungsstelle der kippvorrichtungsseitigen Enden der Hydraulikzylinder an den Tellerscheiben und der Befestigungsstelle der Tellerscheiben an der Halterung gelegenen Bereichen in ihren Durchmessern reduziert.The diameters of the plate disks are advantageously reduced in their two areas between the attachment point of the ends of the hydraulic cylinder on the tilting device side on the plate disks and the attachment point of the plate disks on the holder.

Hierdurch können die im Obergurt des Hohlkastenträgers für die Tellerscheiben vorzusehenden Ausnehmungen verhältnismäßig klein gehalten werden, wodurch die Möglichkeit des Eindringens von Schmutz etc. in den Hohlkastenträger verringert wird. In vorteilhafter Weiterbildung weist der Obergurt des Hohlkastenträgers im Bereich der Tellerscheiben eine entsprechende Ausnehmung aus, durch welche die Tellerscheiben in den Hohlraum des Kastenträgers hineinstehen.As a result, the recesses to be provided in the upper flange of the box girder for the plate washers can be kept relatively small, thereby reducing the possibility of dirt, etc. penetrating into the box girder. In an advantageous development, the top flange of the hollow box girder has a corresponding recess in the area of the plate washers, through which the plate washers protrude into the cavity of the box girder.

Schließlich kann die Ausnehmung in dem Obergurt des Hohlkastenträgers auf zwei, die Tellerscheiben in den Hohlkastenträger einstehen lassende Schlitze reduziert sein.Finally, the recess in the top chord of the box girder can be reduced to two slits which let the plate washers protrude into the box girder.

Diese Ausbildung der Oberseite des Grabgefäßes als Hohlkastenträger gewährleistet einen nahezu vollständigen Schutz der besonders empfindlichen Hydraulikzylinder mit ihren Kolbenstangen sowie der in diesem Bereich befindlichen Hydraulik-Leitungen. Selbst bei extremem Einsatz des Grabgefäßes können die empfindlichen Teile nicht beschädigt werden, da sie vollständig abgedeckt sind. Hierdurch wird auch eine große Wartungsfreundlichkeit des Arbeitsgerätes erreicht.This design of the top of the grave vessel as a hollow box girder ensures almost complete protection of the particularly sensitive hydraulic cylinders with their piston rods and the hydraulic lines located in this area. Even when the grave vessel is used extremely, the sensitive parts cannot be damaged because they are completely covered. This also ensures that the implement is easy to maintain.

Zur Durchführung von gelegentlichen Wartungsarbeiten sind in der zur Baumaschine hin gelegenen Rückseite des Hohlkastenträgers öffnungen vorgesehen, welche durch entsprechend ausgebildete Deckel abgedeckt werden können.For carrying out occasional maintenance work, openings are provided in the rear of the box girder facing the construction machine, which openings can be covered by appropriately designed lids.

Ein die Erfindung nicht beschränkendes Ausführungsbeispiel ist in den Figuren dargestellt. Es zeigt

  • Fig. 1 eine Vorderansicht des Grabgefäßes mit Befestigungsvorrichtung ohne vorderseitigen Gurt des Hohlkastenträgers und mit eingezeichneter Kippstellung von 45°,
  • Fig. 2 einen Schnitt gemäß Linie 11-11 in Fig. 1,
  • Fig. 3 eine Draufsicht auf das Grabgefäß mit teilweisem Schnitt der Kippvorrichtung gemäß Linie 111-111 in Fig. 1,
  • Fig. 4 eine Rückansicht des Grabgefäßes,
  • Fig. eine Seitenansicht des Grabgefäßes ohne Darstellung der Halterung,
  • Fig. 6 eine Rückansicht des Grabgefäßes in einer weiteren Ausführungsform und
  • Fig. einen Schnitt gemäß Linie VII-VII in Fig. 6.
An embodiment which does not limit the invention is shown in the figures. It shows
  • 1 is a front view of the grave vessel with fastening device without front belt of the box girder and with the tilted position shown at 45 °,
  • 2 shows a section along line 11-11 in FIG. 1,
  • 3 shows a plan view of the grave vessel with a partial section of the tilting device according to line 111-111 in FIG. 1,
  • 4 is a rear view of the burial vessel,
  • 1 is a side view of the grave vessel without showing the holder,
  • Fig. 6 is a rear view of the burial vessel in a further embodiment and
  • 6 shows a section along line VII-VII in FIG. 6.

In den Figuren ist ein Grabgefäß 1 in der besonderen Ausführungsform eines Grabenräumlöffels mit einer Befestigungsvorrichtung 2 dargestellt, welches an den Ausleger einer Baumaschine, insbesondere eines Baggers anschließbar ist.The figures show a grave vessel 1 in the special embodiment of a grave clearing bucket with a fastening device 2, which can be connected to the boom of a construction machine, in particular an excavator.

Die Befestigungsvorrichtung 2 ist mittig auf der Oberseite 3 des Grabgefäßes 1 angeordnet und enthält eine für die Befestigung an dem Baggerausleger vorgesehene Halterung 4 und eine zwischen dieser Halterung 4 und der Oberseite 3 des Grabgefäßes 1 angeordnete Kippvorrichtung 5.The fastening device 2 is arranged centrally on the upper side 3 of the digging vessel 1 and contains a holder 4 provided for fastening to the excavator boom and a tilting device 5 arranged between this holder 4 and the upper side 3 of the digging vessel 1.

Die Oberseite 3 des Grabgefäßes 1 ist als Hohlkastenträger 6 mit Obergurt 7, Untergurt 8 und vorderem Steg 9 und hinterem Steg 10 ausgebildet. Diese Ausbildung der Oberseite des Grabgefäßes, abgeschlossen von den Seitenwänden 11 und 12, dient neben der Erhöhung des statischen Widerstandsmomentes insbesondere der Aufnahme wesentlicher Teile der Kippvorrichtung 5.The top 3 of the grave vessel 1 is designed as a hollow box girder 6 with an upper flange 7, a lower flange 8 and a front web 9 and a rear web 10. This design of the top of the grave vessel, completed by the side walls 11 and 12, serves, in addition to increasing the static moment of resistance, in particular to accommodate essential parts of the tilting device 5.

Die Kippvorrichtung 5 besteht aus zwei, unterhalb der Halterung 4 fest angeordneten, senkrecht zur Ebene der Auslegerachse 13 und im Abstand hintereinander angeordnete, als Tellerscheiben 14 bzw. 15 ausgebildete kreisförmige Flansche.The tilting device 5 consists of two circular flanges, which are arranged underneath the holder 4, perpendicular to the plane of the cantilever axis 13 and at a distance one behind the other, and are designed as plate disks 14 and 15.

Im Kreismittelpunkt der Tellerscheiben 14 und 15 ist die Drehachse 16 eines Drehlagers 17 angeordnet, welches wiederum in zwei, zu den Tellerscheiben 14 bzw. 15 parallel angeordneten, auf dem Obergurt 7 des Hohlkastenträgers 6 des Grabgefäßes 1 befestigte Laschen 18 bzw. 19 gelagert ist.In the center of the circle of the plate disks 14 and 15, the axis of rotation 16 of a rotary bearing 17 is arranged, which in turn is mounted in two brackets 18 and 19, which are arranged in parallel with the plate disks 14 and 15 and are fastened on the top flange 7 of the hollow box girder 6 of the digging vessel 1.

Die Laschen 18 bzw. 19 können auch über den Obergurt 7 nach oben hinaufgeführte verlängerte Teile des vorderen bzw. hinteren Steges 9 bzw. 10 sein.The tabs 18 and 19 can also be extended parts of the front and rear webs 9 and 10, which are led upwards via the top chord 7.

Der Obergurt 7 des Hohlkastenträgers 6 weist im Bereich der Tellerscheiben 14 und 15 einen separaten Schlitz 21 bzw. 22 auf, wodurch die Tellerscheiben ungehindert in den Innenraum des Hohlkastenträgers 6 hineinragen können.The upper flange 7 of the hollow box girder 6 has a separate slot 21 and 22 in the area of the plate washers 14 and 15, as a result of which the plate washers can protrude freely into the interior of the hollow box girder 6.

Innerhalb des Hohlkastenträgers 6 sind zwei Hydraulikzylinder 23 bzw. 24 bei nicht ausgeschwenkter Stellung des Grabgefäßes 1 in annähernd horizontaler Lage eingebaut. Die jeweiligen grabgefäßseitigen Enden 25 bzw. 26 der Hydraulikzylinder 23 bzw. 24 sind nahe den Seitenwänden 11 bzw. 12 des Grabgefäßes 1 gelenkig auf der Innenseite des Untergurtes 8 befestigt, die kippvorrichtungsseitigen Enden 27 bzw. 28 der beiden Hydraulikzylinder sind dagegen in radialem Abstand von der Drehachse 16 des Drehlagers 17 jeweils an einer der beiden Tellerscheiben 14 bzw. 15 ebenfalls gelenkig befestigt.Within the hollow box girder 6, two hydraulic cylinders 23 and 24 are installed in an approximately horizontal position when the digging vessel 1 is not pivoted out. The respective ends 25 and 26 of the hydraulic cylinders 23 and 24 on the digging vessel side are fastened in an articulated manner near the side walls 11 and 12 of the digging vessel 1 on the inside of the lower flange 8, on the other hand, the ends 27 and 28 of the two hydraulic cylinders on the tipping device side are at a radial distance from the axis of rotation 16 of the pivot bearing 17 each also articulated on one of the two plate washers 14 and 15.

In einer weiteren Ausführungsform des Grabgefäßes 1 gemäß Fig. 6 und Fig. 7 sind die grabgefäßseitigen Enden 25' bzw. 26' der Hydraulikzylinder 23' bzw. 24' nahe den Seitenwänden 11' bzw. 12' gelenkig auf der Innenseite des Obergurtes 7' des Hohlkastenträgers 6' befestigt, so daß die Oberseite 3' des Untergurtes 8' durchgehend frei ist und sich dort eventuell sammelnde, durch die Ausnehmungen 20 im Obergurt 7' eindringende Ablagerungen die Funktion der Hydraulikzylinder 23' bzw. 24' bzw. deren gelenkige Lagerungen nicht beeinträchtigen können.6 and 7, the ends 25 'or 26' of the hydraulic cylinders 23 'or 24' near the side walls 11 'or 12' are articulated on the inside of the upper chord 7 '. of the box girder 6 'attached, so that the top 3' of the lower flange 8 'is continuously free and possibly accumulating deposits penetrating through the recesses 20 in the upper flange 7' the function of the hydraulic cylinders 23 'and 24' or their articulated bearings cannot interfere.

Die Tellerscheiben 14' bzw. 15' sind bei dieser Ausführungsform in ihren Durchmessern erheblich reduziert, mit Ausnahme im Bereich der Befestigungsstelle 31', in welcher die kippvorrichtungsseitigen Enden 27' bzw. 28' der Hydraulikzylinder gelenkig angeordnet sind. Durch die verkleinerte Ausführungsform der Tellerscheiben 14' bzw. 15' wird erreicht, daß die Ausnehmungen 20 im Obergurt 7' des Hohlkastenträgers 6' wesentlich kleiner ausgebildet sein können, als bei dem ersten Ausführungsbeispiel und damit das Eindringen von Schmutz etc. in den Hohlkastenträger erschwert wird.The plate washers 14 'and 15' are in this Embodiment significantly reduced in diameter, except in the area of the attachment point 31 ', in which the tilting device ends 27' and 28 'of the hydraulic cylinders are articulated. The reduced embodiment of the plate washers 14 'and 15' ensures that the recesses 20 in the upper flange 7 'of the hollow box girder 6' can be made significantly smaller than in the first embodiment and thus makes it more difficult for dirt, etc. to enter the hollow box girder becomes.

Je nachdem, welcher der beiden Hydraulikzylinder ein- bzw. ausgefahren ist, wird das Grabgefäß 1 um die Drehachse 16 der Befestigungsvorrichtung 2 geschwenkt.Depending on which of the two hydraulic cylinders is retracted or extended, the digging vessel 1 is pivoted about the axis of rotation 16 of the fastening device 2.

Der hintere Steg 10 des Hohlkastenträgers 6 weist Öffnungen auf, welche mit entsprechenden Deckeln 29 verschlossen sind (siehe Fig. 4) und bei Bedarf die Wartung der Hydraulikzylinder 23 bzw. 24 und entsprechenden Hydraulik-Leitungen 30 erlauben.The rear web 10 of the hollow box girder 6 has openings which are closed with corresponding covers 29 (see FIG. 4) and, if necessary, allow maintenance of the hydraulic cylinders 23 or 24 and corresponding hydraulic lines 30.

Diese Hydraulik-Leitungen 30 enden in Anschlüssen 31, welche unmittelbar im Drehbereich der Befestigungsvorrichtung angeordnet sind und die baumaschinenseitigen Anschlußteile aufnehmen können.These hydraulic lines 30 end in connections 31, which are arranged directly in the rotating area of the fastening device and can accommodate the construction parts on the machine side.

Claims (9)

1. An excavator bucket (1), in particular a ditch- clearing shovel, for an excavator or the like machinery, attachment fixture (2) which incorporates a mounting (4) for connection to the boom of an item of construction machinery and a tilting device (5) which is located between the mounting (4) and the top (3) of the excavator bucket (1), the tilting device essentially comprising a pivot bearing (17) arranged with its pivot axis (16) in the longitudinal direction of the boom and a hydraulic cylinder arrangement connected between the top (3) of the excavator bucket (1) and the mounting (4) in a manner permitting articulation, the hydraulic cylinder arrangement being connected beneath the pivot bearing (17) by means of its end which is located close to the attachement fixture, characterised in that the top (3) of the excavator bucket (1) is designed as a hollow box girder (6) and the hydraulic cylinder arrangement comprises two hydraulic cylinders (23 and 24) which are arranged inside this hollow box girder (6), one on either side of the attachment fixture (2), the ends (27 and 28 respectively) closer to the attachment fixture being located between the pivot bearing (17) and the top (3) of the excavatir bucket or, as the case may be, a lower flange (8) of the hollow box girder (6), and in the vertical plane of the boom axis (13) passing through the pivot bearing (17).
2. An excavator bucket according to claim 1, characterised in that the tilting device (5) is formed essentially by two circular flanges which are designed as disc plates (14 and 15), are arranged spaced apart one behind the other perpendicular to the plane of the boom axis (13), and are fastened to the mounting (4), the pivot axis (16) of the pivot bearing (17) being located at the centre of the circle describing these disc plates (14 and 15), and being carried, in turn, in two brackets (18 and 19 respectively) which are arranged so that they are parallel to the disc plates (14 and 15) and are fastened to the top (3) of the excavator bucket (1).
3. An excavator bucket according to claim 2, characterised in that those ends (25 and 26) of the two hydraulic cylinders (23 and 24 respectively) which are closer to the excavator bucket are connected to its top (3) in proximity to its side walls (11 and 12 respectively) in a manner permitting articulation, and those ends (27 and 28) of the hydraulic cylinders (23 and 24 respectively) which are closer to the tilting device are connected to one of the disc plates at a radial distance from the pivot axis (16), likewise in a manner permitting articulation.
4. An excavator bucket according to claim 3, characterised in that each of the hydraulic cylinders (23 and 24) is fastened to one of the two disc plates (14 or 15, as the case may be), by its end (27 or 28, as the case may be) closer to the tilting device.
5. An excavator bucket according to claim 1, characterised in that those ends (25' and 26') of the two hydraulic cylinders (23' and 24' respectively) which are closer to the excavator bucket are connected inside the hollow box girder (6') to the upper flange (7') of this box girder (6') in proximity to the side walls (11' and 12' respectively) of the excavator bucket, in a manner permitting articulation, and those ends (27' and 28') of the hydraulic cylinders (23' and 24' respectively) which are closer to the tilting device are con- . nected to the disc plates (14' and 15' respectively) at a radial distance from the pivot axis (16), likewise in a manner permitting articulation.
6. An excavator bucket according to claim 5, characterised in that the diameters of the disc plates (14' and 15') are reduced in the two re-' gions situated between the location (31') where those ends (27' or 28', as the case may be) of the: ' hydraulic cylinders which are closer to the tilting device are fastened to the disc plates and the location where the disc plates are fastened to the mounting (4).
7. An excavator bucket according to claim 1, characterised in that the upper flange (7) of the hollow box girder (6) in the region of the disc plates has a corresponding opening (20) through which the disc plates fit into the hollow interior of the box girder.
8. An excavator bucket according to claim 7, characterised in that the opening (20) in the upper flange (7) of the hollow box girder (6) is reduced to two slits (21 and 22) permitting the disc plates to fit into the hollow box girder.
9. An excavator bucket according to claim 7, characterised in that openings are present in the rearward flange (11) for the construction machin- ery, which openings can be covered by appropriately shaped covers (29).
EP81100893A 1980-02-11 1981-02-09 Excavating bucket Expired EP0033966B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100893T ATE7522T1 (en) 1980-02-11 1981-02-09 GRAVE VESSEL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803004974 DE3004974A1 (en) 1980-02-11 1980-02-11 GRAVE VESSEL
DE3004974 1980-02-11

Publications (3)

Publication Number Publication Date
EP0033966A2 EP0033966A2 (en) 1981-08-19
EP0033966A3 EP0033966A3 (en) 1981-08-26
EP0033966B1 true EP0033966B1 (en) 1984-05-16

Family

ID=6094278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100893A Expired EP0033966B1 (en) 1980-02-11 1981-02-09 Excavating bucket

Country Status (3)

Country Link
EP (1) EP0033966B1 (en)
AT (1) ATE7522T1 (en)
DE (2) DE3004974A1 (en)

Cited By (1)

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DE202010016242U1 (en) * 2010-12-06 2014-02-13 Liebherr-Hydraulikbagger Gmbh cover

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
DE9407859U1 (en) * 1994-05-11 1994-09-01 Mieger, Rolf, 88457 Kirchdorf Hydraulically swiveling trench clearing bucket
EP0957209B1 (en) * 1998-05-12 2007-02-14 Rolf Mieger Hydraulic piston-cylinder-unit for a pivot drive
ES1045081Y (en) * 2000-01-14 2000-12-16 Pulgar Emilio Alvarez HYDRAULIC MECHANISM APPLICABLE ON DUCKS OR EXCAVATOR BLADES OR SIMILAR.
FI6248U1 (en) * 2004-02-24 2004-05-27 Reijo Niilo Saukko Arrangement for controlling the implement
KR102326514B1 (en) * 2019-09-19 2021-11-12 음화영 Grader for shovel bucket
KR102302160B1 (en) * 2020-12-21 2021-09-14 서대운 Attachement For Excavator

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Publication number Priority date Publication date Assignee Title
US2631745A (en) * 1951-08-10 1953-03-17 Jr Harry W Addison Scoop mounting and dumping mechanism
US3231116A (en) * 1963-10-23 1966-01-25 Olin B Powell Excavating machine
US3289866A (en) * 1965-02-23 1966-12-06 Norman B Emery Back hoe dipper attachment for digging laterally sloped excavations
DE1634873A1 (en) * 1967-01-20 1970-10-22 Liebherr Dr Ing E H Hans Excavator
FR2235233A1 (en) * 1973-06-30 1975-01-24 Mak Maschinenbau Gmbh
US3915501A (en) * 1974-11-22 1975-10-28 Caterpillar Tractor Co Mounting arrangement for impact rock-breaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631745A (en) * 1951-08-10 1953-03-17 Jr Harry W Addison Scoop mounting and dumping mechanism
US3231116A (en) * 1963-10-23 1966-01-25 Olin B Powell Excavating machine
US3289866A (en) * 1965-02-23 1966-12-06 Norman B Emery Back hoe dipper attachment for digging laterally sloped excavations
DE1634873A1 (en) * 1967-01-20 1970-10-22 Liebherr Dr Ing E H Hans Excavator
FR2235233A1 (en) * 1973-06-30 1975-01-24 Mak Maschinenbau Gmbh
US3915501A (en) * 1974-11-22 1975-10-28 Caterpillar Tractor Co Mounting arrangement for impact rock-breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010016242U1 (en) * 2010-12-06 2014-02-13 Liebherr-Hydraulikbagger Gmbh cover

Also Published As

Publication number Publication date
ATE7522T1 (en) 1984-06-15
EP0033966A3 (en) 1981-08-26
DE3163557D1 (en) 1984-06-20
EP0033966A2 (en) 1981-08-19
DE3004974A1 (en) 1981-08-20

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