EP1837445A2 - Implement for an excavator - Google Patents

Implement for an excavator Download PDF

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Publication number
EP1837445A2
EP1837445A2 EP07090046A EP07090046A EP1837445A2 EP 1837445 A2 EP1837445 A2 EP 1837445A2 EP 07090046 A EP07090046 A EP 07090046A EP 07090046 A EP07090046 A EP 07090046A EP 1837445 A2 EP1837445 A2 EP 1837445A2
Authority
EP
European Patent Office
Prior art keywords
gripper
holder
shells
carrier
drive unit
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
EP07090046A
Other languages
German (de)
French (fr)
Other versions
EP1837445A3 (en
EP1837445B1 (en
Inventor
Jürgen Bender
Mathias Bender
Michael Jungnickel
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.)
Gottlieb Tesch Bauunternehmen GmbH
Original Assignee
Gottlieb Tesch Bauunternehmen GmbH
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Publication date
Application filed by Gottlieb Tesch Bauunternehmen GmbH filed Critical Gottlieb Tesch Bauunternehmen GmbH
Publication of EP1837445A2 publication Critical patent/EP1837445A2/en
Publication of EP1837445A3 publication Critical patent/EP1837445A3/en
Application granted granted Critical
Publication of EP1837445B1 publication Critical patent/EP1837445B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14Grabs opened or closed by driving motors thereon
    • B66C3/16Grabs opened or closed by driving motors thereon by fluid motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/02Bucket grabs
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/30Dredgers; 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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/303Dredgers; 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 with a dipper-arm pivoted on a cantilever beam, i.e. boom with the dipper-arm or boom rotatable about its longitudinal axis
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/36Component parts
    • E02F3/40Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/402Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/404Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors comprising two parts movable relative to each other, e.g. for gripping
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/36Component parts
    • E02F3/40Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4135Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device with grabs mounted directly on a boom

Definitions

  • the invention relates to a working device for an excavator, in particular for excavating the trenches with a hydraulic excavator with multi-part boom, with a attachable at the free end of Endauslegerarmes, pivotable carrier with a holder for the open at the tops of the looper shells of a gripper.
  • An implement of this kind is out DE 86 17 421 U1 previously known.
  • the excavator is provided with a three-piece boom, on whose Endauslegerarm a hydraulically pivotable spoon is arranged.
  • this implement earthworks and grading can be carried out, trenches are pulled and embankments are leveled.
  • the spoon For excavation work, the spoon must be removed from the carrier and attached a hook instead of the spoon. This requires the provision of both a bucket and a grab as work tools.
  • the invention is therefore an object of the invention to provide a working device of the generic type, which can be used for excavating the trenches both as a gripper and as a spoon.
  • the invention provides that the gripper can be converted by mechanical blocking of the closed gripper shells on the holder to the spoon.
  • the grapple can be used for excavating the trenches also as a spoon.
  • the gripper shells are mounted in pivot axes on the holder and mechanically coupled to the pivoting movement, that for opening and closing the gripper shells between the carrier and a gripper shell, a drive unit is arranged and that the other gripper shell by means of a locking device can be blocked in the closed position on the holder.
  • the inventive design of the implement can be excavated with the gripper using the attacking on the one gripper shell drive unit in a conventional manner ground for the purpose of creating a trench, wherein the drive unit for opening and closing the gripper and the boom of the excavator for moving the gripper serve from the receiving into the dispensing position.
  • the carrier To use the gripper as a spoon, the carrier must only by means of another, the boom and the carrier hinged drive unit are pivoted in a spoon movement, the free upper edge of the non-driven gripper cup acts as a spoon edge.
  • This serves the locking device with which the not acted upon by the drive unit gripper cup blocked in the closed position and thus the gripper with its two gripper cups and the holder with carrier are operatively connected to a rigid unit, so that the bucket movement of the assembly by means of the drive unit on the boom Excavator is possible.
  • the free upper edge of the not acted upon by the drive unit gripper cup serves as a spoon edge.
  • the same implement can be used both as a gripper and as a spoon, so that only one working device must be kept ready for both operations.
  • the implement for excavating the soil combines the previously separate functions of a trench spoon with those of the trench gripper and forms a multifunctional attachment, especially for the standard hydraulic excavator A 900 B Litronic. Replacement of the various tools for gripping and spooning is therefore no longer necessary.
  • each gripper cup is mounted by means of a respective pivot axis on the holder and the pivot axes are parallel to each other and spaced apart and coupled by means of non-rotatably mounted on the pivot axes of the gripper shells, meshing with each other gears.
  • two driving spur gears are mounted with common, mounted on the holder pivot axis of the driven gripper shell, which is acted upon by the drive unit.
  • the locking device is formed from in the closed position between the abutting side walls of the hook shells attacking, fastened to the holder stopper bolt.
  • the stop pins cause in a simple manner a support of the spoon edge of the non-driven gripper cup on the holder and at the same time a mutual locking of the two gripper cups on the holder, which is firmly connected to the pivotable carrier.
  • both drive units are designed as hydraulic cylinder piston units for mounting the implement to a hydraulic excavator.
  • a hydraulic excavator 1 (FIGS. 1 and 2) comprises a chassis 3 movable on tires 2 with a turntable 4, on which a machine part 5, a cab 6 and a platform 7 are rotatably mounted, on which a three-part boom 8 with a Endauslegerarm 9 and attached to a working device 10 is attached.
  • the boom 8 and thus the implement 10 can be pivoted about the vertical axis 32 of the turntable 4.
  • the Endauslegerarm 9 can be moved about its pivot axis 11 in a vertical plane, whereby the mounted in a pivot axis 12 at the free end of Endauslegerarmes 9 working device 10 is also movable in this vertical plane.
  • a pivotally mounted on Endauslegerarm 9, designed as a hydraulic cylinder piston unit Drive unit 13, which serves for a later-described purpose, is fixed with its end bearing eye 37 by means of a lever 38 in the fixed point 39 on Endauslegerarm 9.
  • the implement 10 consists (Fig. 6 and 7) of a horizontal cross-section I-shaped support 14, whose upper end carries a bracket 15, on the top of a rotary gear 16 is flanged with a fork-shaped fastening tab 17 which on the pivot axis 12 on free end of Endauslegerarmes 9 is mounted. Between the fastening tab 17 and the rotary gear 16, a hinge 43 is arranged so that the gripper 21 can always align itself vertically to its center of gravity.
  • the I-shaped support 14 carries at the lower end a box-shaped holder 18 for the gripper shells 19, 20 of a gripper 21. Each gripper cup 19, 20 is mounted on the holder 18 by means of a respective pivot axis 22, 23 (FIGS. 3 and 5).
  • the pivot axes 22, 23 are parallel to each other and spaced from each other.
  • spur gears 24, 25 are non-rotatably arranged on the pivot axes 22, 23 and engage with each other.
  • the rotatably attached to the gripper shells 19, 20 pivot axes 22, 23 are rotatably mounted in the holder 18.
  • cross rail 41 with a bearing 42 is designed as a hydraulic cylinder piston unit Drive unit 26 which extends diagonally through an opening 27 in the I-shaped support 14 (FIGS. 6 and 7) and which serves to drive the opening and closing of the gripper 21.
  • the right gripper shell 20 form the driven gripper shell and the left gripper shell 19 the non-driven gripper shell.
  • the spur gears 20 associated with the driven right gripper shell 20 form the driving spur gears and the non-driven left gripper shell 21 associated spur gears 25, the driven spur gears. This results in a forced coupling of the movements of the non-driven left gripper cup 19 by a pivoting movement of the driven right gripper cup 20.
  • the implement 10 in the previously described embodiment operates like a conventional digger grab by opening the gripper 21 by means of the drive unit 26 (FIG. 2) and lowering it by means of the boom 9.
  • the drive unit 26 FIG. 2
  • the boom 9 When Erdaushub carried a closing of the gripper 21 and then a vertical movement in a raised position (Fig. 1), from which by lateral pivoting of the boom 9, a depositing of the excavation laterally of the trench is possible.
  • the rotary gear 16 is also a pivoting of the gripper 21 about its vertical axis possible.
  • brackets 28, 29 For this purpose, arranged on the perpendicular to the pivot axes 23, 23 of the gripper shells 19, 20 and above the fully open at the top left gripper cup 19, facing the cab 6 front of the carrier 14 at a vertical distance from each other different lengths brackets 28, 29 with the respective End mounted pivot bearings 30, 31 arranged (Fig. 1, 2 and 4).
  • the upper, shorter holder 28 serves to fasten the carrier 14 by means of the pivot bearing 30 to the drive unit 13 arranged on the end arm 9, which is designed as a hydraulic cylinder-piston unit.
  • the lower, longer bracket 29 is used with its pivot bearing 31 for mounting the carrier 14 on the pivot bearing 12 at the free end of the Endauslegerarmes. 9
  • spoon movements of the gripper 21 can now be carried out under the effect of both the pivoting movements of the drive unit 13 on the end extension arm 9 and the pivoting movements of the boom 8 and the end extension arm, for which the front edge of the left gripper cup 19 is designed as a spoon edge 33.
  • the left gripper cup 19 by means of a locking device 34 on the holder 18 can be blocked.
  • the locking device 34 is off in the closed position of the gripper 21 between the abutting side walls of the gripper shells 19, 20 attacking, laterally fastened to the holder 18 stop pin 35 is formed, which engage in edge-reinforced mating recesses 36 on the side walls of the gripper shells 19, 20.
  • All drive units are designed for a hydraulic excavator as hydraulic cylinder piston units.
  • the components of the implement 10 are made of steel of the required quality and strength.
  • the trailing edge 33 of the left hook tray 19, seen from the cab 6, forms the front edge of the hook 21 (FIGS. 1, 4 and 5), parallel to the pivot axes 22, 23 of the hook shells 19, 20 and thus runs transversely to the direction of the gripper 21 in the spoon movement.
  • the spoon-gripper 21 is thus divided transversely to its working direction when spooning the soil, so that when digging trenches by spoons by means of the spoon edge 33, a subsequent work as a gripper 21 in the dug digging trenches is possible.
  • an alternative embodiment of Endauslegerarmes 9 is provided in the form of a rotary handle 9 ', which is connected via the rotary 16' as formed rotary gear 16 with the head portion 45 of the Endauslegerarmes 9 in combination.
  • a hydraulically driven rotary gear comprehensive turntable 16 ' By means of a hydraulically driven rotary gear comprehensive turntable 16 ', the rotary handle 9' can be rotated about its vertical vertical axis 46.
  • the Bracket 15 pivotally mounted, which receives the carrier 14 for the gripper 21 approximately centrally on the bottom.
  • the rotary handle 9 ' can be rotated by means of the turntable 16' together with the drive unit 13 and mounted on the bracket 15 gripper 21 about its vertical vertical axis 46.
  • the rotary handle 9 ' can also be pivoted by means of the boom 8.
  • the console 15 can be pivoted with the gripper 21 thereon under the action of the drive unit 13 and the parallelogram of the boom 15 and the levers 38 and 44 about the pivot axis 12 at the lower end of the rotary handle 9 ', so that the gripper 21 also obliquely can be employed, as shown in Fig. 10.
  • the gripper cup 19 can be spooned over the upper, toothed spoon edge 33 both under the action of the drive unit 13 on the console 15 and under the action of the jib 8 and / or. or the rotary handle 9 '.
  • 20 can also in the position shown in Fig. 10 of the gripper 21 under the action of the drive unit 26 between the bracket 15 and gripper shell 20 dredging work are carried out, for example, diagonally under underground pipes, pipes od.
  • the hydraulic excavator without any modification both for gripping and for spooning.

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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)

Abstract

The working device (10) has a hydraulic excavator (1) with multipart arms (8). A rotary carrier is attachable at the free end of the final arm (9) with a holder (18) for an upper side of grip arm shells (19,20) of grip arm. The grip arm is convertible to a spoon by mechanical blocking of the closed grip arm shells at the holder. The grip arm shells are stored in drag axis (11,12) at the holder and are coupled mechanically with one another.

Description

Die Erfindung bezieht sich auf ein Arbeitsgerät für einen Bagger, insbesondere zum Bodenaushub beim Gräbenziehen mit einem Hydraulik-Bagger mit mehrteiligem Ausleger, mit einem am freien Ende des Endauslegerarmes anbringbaren, schwenkbaren Träger mit einem Halter für die an den Oberseiten offenen Greiferschalen eines Greifers.The invention relates to a working device for an excavator, in particular for excavating the trenches with a hydraulic excavator with multi-part boom, with a attachable at the free end of Endauslegerarmes, pivotable carrier with a holder for the open at the tops of the looper shells of a gripper.

Ein Arbeitsgerät dieser Art ist aus DE 86 17 421 U1 vorbekannt. Der Bagger ist mit einem dreiteiligen Ausleger versehen, an dessen Endauslegerarm ein hydraulisch verschwenkbarer Löffel angeordnet ist. Mit diesem Arbeitsgerät können Erd- und Planierarbeiten ausgeführt, Gräben gezogen und Böschungen planiert werden. Für Bodenaushubarbeiten muss der Löffel vom Träger abgebaut und anstelle des Löffels ein Greifer angehängt werden. Dies erfordert die Bereitstellung sowohl eines Löffels als auch eines Greifers als Arbeitswerkzeuge.An implement of this kind is out DE 86 17 421 U1 previously known. The excavator is provided with a three-piece boom, on whose Endauslegerarm a hydraulically pivotable spoon is arranged. With this implement, earthworks and grading can be carried out, trenches are pulled and embankments are leveled. For excavation work, the spoon must be removed from the carrier and attached a hook instead of the spoon. This requires the provision of both a bucket and a grab as work tools.

Ferner ist aus DE 17 34 191 U1 als Arbeitsgerät ein Hoch-Tief-Löffelgreifer vorbekannt, der einerseits als Löffel zum Bodenaushub und andererseits als in Längsrichtung teilbarer Greifer zur Aufnahme von Schüttgütern verwendet werden kann. Wegen der durch die Längsteilung bewirkten großen Arbeitsbreite kann der Greifer mit seinen geöffneten Greiferschalen nicht in einen Graben eingefahren werden, der mittels des Löffels ausgehoben worden ist.Furthermore, it is off DE 17 34 191 U1 as a working device a high-low bucket gripper previously known, on the one hand can be used as a spoon for excavating soil and on the other hand as a longitudinally divisible gripper for receiving bulk materials. Because of the large working width caused by the longitudinal division, the gripper with its open gripper shells can not be moved into a trench which has been dug by means of the spoon.

Der Erfindung liegt von daher die Aufgabe zugrunde, ein Arbeitsgerät der gattungsgemäßen Art zu schaffen, das zum Bodenaushub beim Gräbenziehen sowohl als Greifer als auch als Löffel einsetzbar ist.The invention is therefore an object of the invention to provide a working device of the generic type, which can be used for excavating the trenches both as a gripper and as a spoon.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, dass der Greifer durch mechanische Blockierung der geschlossenen Greiferschalen am Halter zum Löffel umrüstbar ist. Somit kann der Greifer zum Bodenaushub beim Gräbenziehen auch als Löffel eingesetzt werden.To solve this problem, the invention provides that the gripper can be converted by mechanical blocking of the closed gripper shells on the holder to the spoon. Thus, the grapple can be used for excavating the trenches also as a spoon.

In weiterer Ausbildung der Erfindung ist vorgesehen, dass die Greiferschalen in Schwenkachsen am Halter gelagert und zur Schwenkbewegung mechanisch miteinander gekoppelt sind, dass zum Öffnen und Schließen der Greiferschalen zwischen dem Träger und der einen Greiferschale eine Antriebseinheit angeordnet ist und dass die andere Greiferschale mittels einer Sperreinrichtung in der Schließstellung am Halter blockierbar ist.In a further embodiment of the invention, it is provided that the gripper shells are mounted in pivot axes on the holder and mechanically coupled to the pivoting movement, that for opening and closing the gripper shells between the carrier and a gripper shell, a drive unit is arranged and that the other gripper shell by means of a locking device can be blocked in the closed position on the holder.

Durch die erfindungsgemäße Ausbildung des Arbeitsgerätes kann mit dem Greifer unter Verwendung der an der einen Greiferschale angreifenden Antriebseinheit in herkömmlicher Weise Boden zum Zwecke der Schaffung eines Grabens ausgehoben werden, wobei die Antriebseinheit zum Öffnen und Schließen des Greifers und der Ausleger des Baggers zum Bewegen des Greifers aus der Aufnahme- in die Abgabeposition dienen.The inventive design of the implement can be excavated with the gripper using the attacking on the one gripper shell drive unit in a conventional manner ground for the purpose of creating a trench, wherein the drive unit for opening and closing the gripper and the boom of the excavator for moving the gripper serve from the receiving into the dispensing position.

Zur Verwendung des Greifers als Löffel muss der Träger nur mittels einer weiteren, am Ausleger und am Träger angelenkten Antriebseinheit in einer Löffelbewegung geschwenkt werden, wobei die freie Oberkante der nicht angetriebenen Greiferschale als Löffelkante wirkt. Hierbei dient die Sperreinrichtung, mit der die nicht von der Antriebseinheit beaufschlagte Greiferschale in der Schließstellung blockiert und damit der Greifer mit seinen beiden Greiferschalen und dem Halter mit Träger zu einer starren Baueinheit wirkverbunden werden, so dass die Löffelbewegung der Baueinheit mittels der Antriebseinheit am Ausleger des Baggers möglich ist. Dabei dient die freie obere Kante der nicht von der Antriebseinheit beaufschlagten Greiferschale als Löffelkante. Hierdurch kann dasselbe Arbeitsgerät sowohl als Greifer als auch als Löffel verwendet werden, so dass für beide Arbeitsvorgänge nur ein Arbeitgerät bereitgehalten werden muss.To use the gripper as a spoon, the carrier must only by means of another, the boom and the carrier hinged drive unit are pivoted in a spoon movement, the free upper edge of the non-driven gripper cup acts as a spoon edge. This serves the locking device with which the not acted upon by the drive unit gripper cup blocked in the closed position and thus the gripper with its two gripper cups and the holder with carrier are operatively connected to a rigid unit, so that the bucket movement of the assembly by means of the drive unit on the boom Excavator is possible. Here, the free upper edge of the not acted upon by the drive unit gripper cup serves as a spoon edge. As a result, the same implement can be used both as a gripper and as a spoon, so that only one working device must be kept ready for both operations.

Das erfindungsgemäße Arbeitsgerät zum Bodenaushub vereint die bisher getrennten Funktionen eines Grabenlöffels mit denen des Grabengreifers und bildet ein multifunktionales Anbaugerät, insbesondere für den Standard-Hydraulikbagger A 900 B Litronic. Ein Auswechseln der verschiedenen Arbeitsgeräte zum Greifen und Löffeln ist damit nicht mehr erforderlich.The implement for excavating the soil combines the previously separate functions of a trench spoon with those of the trench gripper and forms a multifunctional attachment, especially for the standard hydraulic excavator A 900 B Litronic. Replacement of the various tools for gripping and spooning is therefore no longer necessary.

In noch weiterer Ausbildung der Erfindung ist jede Greiferschale mittels je einer Schwenkachse am Halter gelagert und die Schwenkachsen sind parallel zueinander und im Abstand voneinander angeordnet und mittels drehfest an den Schwenkachsen der Greiferschalen angeordneter, miteinander in Eingriff stehender Zahnräder gekoppelt. Hierdurch wird in einfacher Weise eine gekoppelte Bewegung der angetriebenen Greiferschale mit der nicht angetriebenen Greiferschale beim Öffnen und Schließen des Greifers ermöglicht. Dabei sind zwei treibende Stirnzahnräder mit gemeinsamer, am Halter gelagerter Schwenkachse an der angetriebenen Greiferschale angebracht, die von der Antriebseinheit beaufschlagt wird. An der am Halter gelagerten Schwenkachse der anderen, nicht angetriebenen Greiferschale sind zwei weitere Stirnzahnräder angebracht, die mit den Stirnzahnrädern der angetriebenen Greiferschale kämmen. Das Abwälzen der getriebenen Stirnzahnräder der angetriebenen Greiferschale an den nicht angetriebenen Stirnzahnrädern der anderen Greiferschale führt zum gleichzeitigen Öffnen oder Schließen beider Greiferschalen des Greifers.In yet a further embodiment of the invention, each gripper cup is mounted by means of a respective pivot axis on the holder and the pivot axes are parallel to each other and spaced apart and coupled by means of non-rotatably mounted on the pivot axes of the gripper shells, meshing with each other gears. As a result, in a simple manner, a coupled movement of the driven gripper shell with the non-driven Gripper shell when opening and closing the gripper allows. In this case, two driving spur gears are mounted with common, mounted on the holder pivot axis of the driven gripper shell, which is acted upon by the drive unit. At the mounted on the holder pivot axis of the other, non-driven gripper cup two more spur gears are mounted, which mesh with the spur gears of the driven gripper shell. The rolling of the driven spur gears of the driven gripper shell on the non-driven spur gears of the other gripper shell leads to the simultaneous opening or closing of both gripper shells of the gripper.

In weiterer Ausbildung der Erfindung ist vorgesehen, dass die Sperreinrichtung aus in der Schließstellung zwischen den aneinanderstoßenden Seitenwänden der Greiferschalen angreifenden, am Halter befestigten Anschlagbolzen ausgebildet ist. Die Anschlagbolzen bewirken in einfacher Weise eine Abstützung der Löffelkante der nicht angetriebenen Greiferschale am Halter und zugleich eine gegenseitige Arretierung der beiden Greiferschalen am Halter, der fest mit dem schwenkbaren Träger verbunden ist.In a further embodiment of the invention it is provided that the locking device is formed from in the closed position between the abutting side walls of the hook shells attacking, fastened to the holder stopper bolt. The stop pins cause in a simple manner a support of the spoon edge of the non-driven gripper cup on the holder and at the same time a mutual locking of the two gripper cups on the holder, which is firmly connected to the pivotable carrier.

In noch weiterer Ausbildung der Erfindung ist vorgesehen, dass an der senkrecht zu den Schwenkachsen der Greiferschalen und oberhalb der an der Oberseite vollständig offenen einen Greiferschale angeordneten Vorderseite des Trägers zwei im vertikalen Abstand voneinander angeordnete Halterungen angeordnet sind, deren obere Halterung zur Befestigung des Trägers an einer am Endauslegerarm anordenbaren Antriebseinheit und deren untere Halterung zur Befestigung des Trägers am freien Ende des Endauslegerarmes beim Löffeln mit geschlossenem Greifer bei gesperrten und arretierten Greiferschalen dienen. Hierdurch wird der erforderliche große Schwenkbereich des Greifers beim Löffelbetrieb ermöglicht.In yet a further embodiment of the invention it is provided that are disposed on the perpendicular to the pivot axes of the gripper shells and above the fully open at the top of a gripper shell front of the carrier two vertically spaced brackets whose upper support for attachment of the carrier a drive unit which can be arranged on the end extension arm and its lower support for attachment of the carrier at the free end of the Endauslegerarmes when spooning with a closed gripper serve in locked and locked grab shells. As a result, the required large swivel range of the gripper is enabled in spoon mode.

Schließlich sind zum Anbau des Arbeitsgerätes an einen Hydraulik-Bagger beide Antriebseinheiten als Hydraulik-Zylinderkolbeneinheiten ausgebildet.Finally, both drive units are designed as hydraulic cylinder piston units for mounting the implement to a hydraulic excavator.

Die Erfindung ist nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles eines an einen Hydraulik-Bagger angebauten Arbeitsgerätes zum Greifen und Löffeln näher erläutert. Es zeigt:

Fig. 1:
die Seitenansicht eines Hydraulik-Baggers mit am Ausleger angebautem Arbeitsgerät als Greifer in geschlossenem Zustand,
Fig. 2:
die Seitenansicht des Hydraulik-Baggers mit angehobenem und geöffneten Greifer,
Fig. 3:
die Seitenansicht des geöffneten Greifers nach Fig. 2,
Fig. 4:
die Seitenansicht des Auslegers mit zum Löffelbetrieb angebautem Greifer,
Fig. 5:
die Seitenansicht des geschlossenen und mittels eines Anschlagbolzens zum Löffeln blockierten Greifers nach Fig. 4,
Fig. 6:
eine Ansicht des gemäß Fig. 1 geschlossenen Greifers aus der Fahrerperspektive,
Fig. 7:
eine Ansicht des gemäß Fig. 2 geöffneten Greifers aus der Fahrerperspektive,
Fig. 8:
einen Detailschnitt durch die Halterung mit dem Antrieb für die Greiferschalen,
Fig. 9:
eine der Fig. 2 entsprechende Seitenansicht des Hydraulik-Baggers mit einer alternativen Ausführungsform des Endauslegerarms mit einem alternativen Drehgetriebe und
Fig.10
eine der Fig. 9 entsprechende Seitenansicht mit geschlossenem Greifer in einer Greif- und/oder Löffelposition.
The invention is explained in more detail below with reference to an embodiment shown in the drawings of a mounted on a hydraulic excavator implement for gripping and spooning. It shows:
Fig. 1:
the side view of a hydraulic excavator with attached to the boom implement as a gripper in the closed state,
Fig. 2:
the side view of the hydraulic excavator with the gripper raised and opened,
3:
the side view of the open gripper of Fig. 2,
4:
the side view of the boom with attached to spoon operation gripper,
Fig. 5:
the side view of the closed and blocked by means of a stop pin for spoon gripper according to Fig. 4,
Fig. 6:
1 is a view of the gripper according to FIG. 1, from the driver's perspective,
Fig. 7:
2 is a view from the driver perspective of the gripper open according to FIG. 2,
Fig. 8:
a detail section through the holder with the drive for the gripper shells,
Fig. 9:
a corresponding to FIG. 2 side view of the hydraulic excavator with an alternative embodiment of the Endauslegerarms with an alternative rotary gear and
Figure 10
one of FIG. 9 corresponding side view with a closed gripper in a gripping and / or spoon position.

Ein Hydraulik-Bagger 1 (Fig. 1 und 2) umfasst ein auf Reifen 2 verfahrbares Fahrgestell 3 mit einem Drehkranz 4, auf dem ein Maschinenteil 5, ein Führerhaus 6 und eine Plattform 7 drehbar gelagert sind, an der ein dreiteiliger Ausleger 8 mit einem Endauslegerarm 9 und mit einem daran angeordneten Arbeitsgerät 10 angebracht ist. Der Ausleger 8 und damit das Arbeitsgerät 10 können um die vertikale Achse 32 des Drehkranzes 4 geschwenkt werden. Der Endauslegerarm 9 kann um seine Schwenkachse 11 in einer vertikalen Ebene bewegt werden, wodurch das in einer Schwenkachse 12 am freien Ende des Endauslegerarmes 9 gelagerte Arbeitsgerät 10 ebenfalls in dieser vertikalen Ebene bewegbar ist. Eine am Endauslegerarm 9 schwenkbar gelagerte, als Hydraulik-Zylinderkolbeneinheit ausgebildete Antriebseinheit 13, die zu einem später noch beschriebenen Zweck dient, ist mit ihrem endseitigen Lagerauge 37 mittels eines Hebels 38 im Festpunkt 39 am Endauslegerarm 9 festgelegt.A hydraulic excavator 1 (FIGS. 1 and 2) comprises a chassis 3 movable on tires 2 with a turntable 4, on which a machine part 5, a cab 6 and a platform 7 are rotatably mounted, on which a three-part boom 8 with a Endauslegerarm 9 and attached to a working device 10 is attached. The boom 8 and thus the implement 10 can be pivoted about the vertical axis 32 of the turntable 4. The Endauslegerarm 9 can be moved about its pivot axis 11 in a vertical plane, whereby the mounted in a pivot axis 12 at the free end of Endauslegerarmes 9 working device 10 is also movable in this vertical plane. A pivotally mounted on Endauslegerarm 9, designed as a hydraulic cylinder piston unit Drive unit 13, which serves for a later-described purpose, is fixed with its end bearing eye 37 by means of a lever 38 in the fixed point 39 on Endauslegerarm 9.

Das Arbeitsgerät 10 besteht (Fig. 6 und 7) aus einem im horizontalen Querschnitt I-förmigen Träger 14, dessen oberes Ende eine Konsole 15 trägt, auf deren Oberseite ein Drehgetriebe 16 mit einer gabelförmigen Befestigungslasche 17 angeflanscht ist, die an der Schwenkachse 12 am freien Endes des Endauslegerarmes 9 gelagert ist. Zwischen der Befestigungslasche 17 und dem Drehgetriebe 16 ist ein Gelenk 43 angeordnet, damit der Greifer 21 sich nach seinem Schwerpunkt immer vertikal ausrichten kann. Der I-förmige Träger 14 trägt am unteren Ende einen kastenförmigen Halter 18 für die Greiferschalen 19, 20 eines Greifers 21. Jede Greiferschale 19, 20 ist mittels je einer Schwenkachse 22, 23 (Fig. 3 und 5)am Halter 18 gelagert. Die Schwenkachsen 22, 23 sind parallel zueinander und im Abstand voneinander angeordnet. Auf den Schwenkachsen 22, 23 und zugleich auf der Innenseite des kastenförmigen Halters 18 (Fig. 8) sind an den Schwenkachsen 22, 23 Stirnzahnräder 24, 25 drehfest angeordnet, die miteinander in Eingriff stehen. Die an den Greiferschalen 19, 20 drehfest angebrachten Schwenkachsen 22, 23 sind im Halter 18 drehbar gelagert.The implement 10 consists (Fig. 6 and 7) of a horizontal cross-section I-shaped support 14, whose upper end carries a bracket 15, on the top of a rotary gear 16 is flanged with a fork-shaped fastening tab 17 which on the pivot axis 12 on free end of Endauslegerarmes 9 is mounted. Between the fastening tab 17 and the rotary gear 16, a hinge 43 is arranged so that the gripper 21 can always align itself vertically to its center of gravity. The I-shaped support 14 carries at the lower end a box-shaped holder 18 for the gripper shells 19, 20 of a gripper 21. Each gripper cup 19, 20 is mounted on the holder 18 by means of a respective pivot axis 22, 23 (FIGS. 3 and 5). The pivot axes 22, 23 are parallel to each other and spaced from each other. On the pivot axes 22, 23 and at the same time on the inside of the box-shaped holder 18 (FIG. 8), spur gears 24, 25 are non-rotatably arranged on the pivot axes 22, 23 and engage with each other. The rotatably attached to the gripper shells 19, 20 pivot axes 22, 23 are rotatably mounted in the holder 18.

Zwischen einer Lagerstelle 40 auf der Unterseite der am oberen Ende des Trägers 14 angebrachten Konsole 15 und einem die Oberseite der rechten Greiferschale 20 (Fig. 1 bis 5) übergreifenden Querholm 41 mit einer Lagerstelle 42 ist eine als Hydraulik-Zylinderkolbeneinheit ausgebildete Antriebseinheit 26 angeordnet, die sich diagonal durch eine Öffnung 27 im I-förmigen Träger 14 hindurch erstreckt (Fig. 6 und 7) und die dem Antrieb zum Öffnen und Schließen des Greifers 21 dient. Dadurch bilden die rechte Greiferschale 20 die angetriebene Greiferschale und die linke Greiferschale 19 die nicht angetriebene Greiferschale. Somit bilden die der angetriebenen rechten Greiferschale 20 zugeordneten Stirnzahnräder 25 die antreibenden Stirnzahnräder und die der nicht angetriebenen linken Greiferschale 21 zugeordneten Stirnzahnräder 25 die angetriebenen Stirnzahnräder. Dadurch erfolgt eine zwangsweise Koppelung der Bewegungen der nicht angetriebenen linken Greiferschale 19 durch eine Schwenkbewegung der angetriebenen rechten Greiferschale 20.Between a bearing 40 on the underside of the attached at the upper end of the support 14 console 15 and a top of the right gripper shell 20 (Fig. 1 to 5) cross rail 41 with a bearing 42 is designed as a hydraulic cylinder piston unit Drive unit 26 which extends diagonally through an opening 27 in the I-shaped support 14 (FIGS. 6 and 7) and which serves to drive the opening and closing of the gripper 21. As a result, the right gripper shell 20 form the driven gripper shell and the left gripper shell 19 the non-driven gripper shell. Thus, the spur gears 20 associated with the driven right gripper shell 20 form the driving spur gears and the non-driven left gripper shell 21 associated spur gears 25, the driven spur gears. This results in a forced coupling of the movements of the non-driven left gripper cup 19 by a pivoting movement of the driven right gripper cup 20.

Zum Bodenaushub beim Gräbenziehen arbeitet das Arbeitsgerät 10 in der bisher beschriebenen Ausführungsform wie ein herkömmlicher Baggergreifer, indem der Greifer 21 mittels der Antriebseinheit 26 geöffnet (Fig. 2) und mittels des Auslegers 9 abgesenkt wird. Beim Erdaushub erfolgen ein Schließen des Greifers 21 und danach eine Vertikalbewegung in eine angehobene Lage (Fig. 1), aus der durch seitliches Schwenken des Auslegers 9 ein Ablegen des Aushubes seitlich des Grabens möglich ist. Mittels des Drehgetriebes 16 ist auch ein Verschwenken des Greifers 21 um seine vertikale Achse möglich.For excavating the trenches, the implement 10 in the previously described embodiment operates like a conventional digger grab by opening the gripper 21 by means of the drive unit 26 (FIG. 2) and lowering it by means of the boom 9. When Erdaushub carried a closing of the gripper 21 and then a vertical movement in a raised position (Fig. 1), from which by lateral pivoting of the boom 9, a depositing of the excavation laterally of the trench is possible. By means of the rotary gear 16 is also a pivoting of the gripper 21 about its vertical axis possible.

Um mit dem am Träger 14 angebrachten Greifer 21 auch eine Löffelbewegung ausführen zu können, wird das Arbeitsgerät 10 aus der in den Figuren 1 und 2 dargestellten Anbringung mittels des Drehgetriebes 16 vom freien Ende des Endauslegerarmes 9 abgenommen und in die in Figur 4 dargestellte Anbringung verbracht.In order to be able to perform a spoon movement with the attached to the carrier 14 gripper 21, the implement 10 from the attachment shown in Figures 1 and 2 by means of the rotary gear 16 from the free end of Endauslegerarmes 9 removed and spent in the attachment shown in Figure 4.

Hierzu sind an der senkrecht zu den Schwenkachsen 23, 23 der Greiferschalen 19, 20 und oberhalb der an der Oberseite vollständig offenen linken Greiferschale 19 angeordneten, zum Führerhaus 6 zeigenden Vorderseite des Trägers 14 im vertikalen Abstand voneinander unterschiedlich lange Halterungen 28, 29 mit am jeweiligen Ende angebrachten Schwenklagern 30, 31 angeordnet (Fig. 1, 2 und 4). Die obere, kürzere Halterung 28 dient zur Befestigung des Trägers 14 mittels des Schwenklagers 30 an der am Endauslegerarm 9 angeordneten Antriebseinheit 13, die als Hydraulik-Zylinderkolbeneinheit ausgebildet ist. Die untere, längere Halterung 29 dient mit ihrem Schwenklager 31 zur Befestigung des Trägers 14 am Schwenklager 12 am freien Ende des Endauslegerarmes 9.For this purpose, arranged on the perpendicular to the pivot axes 23, 23 of the gripper shells 19, 20 and above the fully open at the top left gripper cup 19, facing the cab 6 front of the carrier 14 at a vertical distance from each other different lengths brackets 28, 29 with the respective End mounted pivot bearings 30, 31 arranged (Fig. 1, 2 and 4). The upper, shorter holder 28 serves to fasten the carrier 14 by means of the pivot bearing 30 to the drive unit 13 arranged on the end arm 9, which is designed as a hydraulic cylinder-piston unit. The lower, longer bracket 29 is used with its pivot bearing 31 for mounting the carrier 14 on the pivot bearing 12 at the free end of the Endauslegerarmes. 9

Bei geschlossenem Greifer 21 können nun unter Einwirkung sowohl der Schwenkbewegungen der Antriebseinheit 13 am Endauslegerarm 9 und als auch der Schwenkbewegungen des Auslegers 8 und des Endauslegerarmes 9 Löffelbewegungen des Greifers 21 ausgeführt werden, wofür die Vorderkante der linken Greiferschale 19 als Löffelkante 33 ausgebildet ist.With the gripper 21 closed, spoon movements of the gripper 21 can now be carried out under the effect of both the pivoting movements of the drive unit 13 on the end extension arm 9 and the pivoting movements of the boom 8 and the end extension arm, for which the front edge of the left gripper cup 19 is designed as a spoon edge 33.

Um zu vermeiden, dass beim Löffeln über die Löffelkante 33 zu große Druckkräfte auf die rechte, nur von der Antriebseinheit 26 beaufschlagte Greiferschale 20 ausgeübt werden, ist die linke Greiferschale 19 mittels einer Sperreinrichtung 34 am Halter 18 blockierbar. Die Sperreinrichtung 34 ist aus in der Schließstellung des Greifers 21 zwischen den aneinanderstoßenden Seitenwänden der Greiferschalen 19, 20 angreifenden, seitlich am Halter 18 befestigten Anschlagbolzen 35 gebildet, die in randverstärkte passende Ausnehmungen 36 an den Seitenwänden der Greiferschalen 19, 20 eingreifen.In order to avoid that when spooning over the bucket edge 33 too great compressive forces are exerted on the right, acted upon only by the drive unit 26 looper tray 20, the left gripper cup 19 by means of a locking device 34 on the holder 18 can be blocked. The locking device 34 is off in the closed position of the gripper 21 between the abutting side walls of the gripper shells 19, 20 attacking, laterally fastened to the holder 18 stop pin 35 is formed, which engage in edge-reinforced mating recesses 36 on the side walls of the gripper shells 19, 20.

Alle Antriebseinheiten sind für einen Hydraulikbagger als Hydraulik-Zylinderkolbeneinheiten ausgebildet. Die Bauteile des Arbeitsgerätes 10 bestehen aus Stahl der erforderlichen Güte und Stärke.All drive units are designed for a hydraulic excavator as hydraulic cylinder piston units. The components of the implement 10 are made of steel of the required quality and strength.

Zu berücksichtigen ist, dass die Löffelkante 33 der linken Greiferschale 19, die vom Führerhaus 6 aus gesehen die vordere Kante des Greifers 21 bildet (Fig. 1, 4 und 5), parallel zu den Schwenkachsen 22, 23 der Greiferschalen 19, 20 und somit quer zur Arbeitsrichtung des Greifers 21 bei dessen Löffelbewegung verläuft. Der Löffel-Greifer 21 ist somit quer zu seiner Arbeitsrichtung beim Löffeln des Bodens geteilt, so dass beim Gräbenziehen durch Löffeln mittels der Löffelkante 33 ein anschließendes Arbeiten als Greifer 21 in dem beim Löffeln ausgehobenen Graben möglich ist.It should be noted that the trailing edge 33 of the left hook tray 19, seen from the cab 6, forms the front edge of the hook 21 (FIGS. 1, 4 and 5), parallel to the pivot axes 22, 23 of the hook shells 19, 20 and thus runs transversely to the direction of the gripper 21 in the spoon movement. The spoon-gripper 21 is thus divided transversely to its working direction when spooning the soil, so that when digging trenches by spoons by means of the spoon edge 33, a subsequent work as a gripper 21 in the dug digging trenches is possible.

Bei dem in Fig. 9 dargestellten Hydraulik-Bagger ist eine alternative Ausführungsform des Endauslegerarmes 9 in Form eines Drehstiels 9'vorgesehen, der über das als Drehkranz 16'ausgebildete Drehgetriebe 16 mit dem Kopfteil 45 des Endauslegerarmes 9 in Verbindung steht. Mittels des ein hydraulisch angetriebenes Drehgetriebe umfassenden Drehkranz 16' kann der Drehstiel 9' um seine vertikale Hochachse 46 gedreht werden. In der Schwenkachse 12 am freien unteren Ende des Drehstieles 9' ist die Konsole 15 schwenkbar gelagert, welche den Träger 14 für den Greifer 21 etwa mittig auf der Unterseite aufnimmt. Parallel zur Konsole 15 ist am Drehstiel 9'in einer von der Schwenkachse 12 beabstandeten Schwenkachse 39'der Hebel 38 gelagert, an dessen freiem Ende im Lagerauge 37 der Kolben der Antriebseinheit 13 gelagert ist. Zwischen dem Lagerauge 37' am freien Ende der Konsole 15 und dem Lagerauge 37 am Kolbenende der Antriebseinheit 13 erstreckt sich ein weiterer Hebel 44, dessen Länge dem Abstand zwischen den Schwenkachsen 12 und 39' am Drehstiel 9' entspricht.In the hydraulic excavator shown in Fig. 9, an alternative embodiment of Endauslegerarmes 9 is provided in the form of a rotary handle 9 ', which is connected via the rotary 16' as formed rotary gear 16 with the head portion 45 of the Endauslegerarmes 9 in combination. By means of a hydraulically driven rotary gear comprehensive turntable 16 ', the rotary handle 9' can be rotated about its vertical vertical axis 46. In the pivot axis 12 at the free lower end of the rotary handle 9 'is the Bracket 15 pivotally mounted, which receives the carrier 14 for the gripper 21 approximately centrally on the bottom. Parallel to the bracket 15 'is mounted on the pivot shaft 9 in a spaced from the pivot axis 12 pivot axis 39' of the lever 38, is mounted at the free end in the bearing eye 37 of the piston 13 of the drive unit. Between the bearing eye 37 'at the free end of the bracket 15 and the bearing eye 37 at the piston end of the drive unit 13, another lever 44, whose length corresponds to the distance between the pivot axes 12 and 39' on the rotary handle 9 'extends.

Der Drehstiel 9' kann mittels des Drehkranzes 16' zusammen mit der Antriebseinheit 13 und dem an der Konsole 15 gelagerten Greifer 21 um seine vertikale Hochachse 46 gedreht werden. Der Drehstiel 9'kann auch mittels des Auslegers 8 verschwenkt werden. Außerdem kann die Konsole 15 mit dem daran befindlichen Greifer 21 unter Einwirkung der Antriebseinheit 13 und des Parallelogramms aus dem Ausleger 15 und den Hebeln 38 und 44 um die Schwenkachse 12 am unteren Ende des Drehstieles 9' verschwenkt werden, so dass der Greifer 21 auch schräg angestellt werden kann, wie es in Fig. 10 dargestellt ist. Schließlich kann gemäß Fig. 10 bei geschlossenem Greifer 21 und mechanisch blockierten Greiferschalen 19, 20 über die obere, verzahnte Löffelkante 33 der Greiferschale 19 gelöffelt werden und zwar sowohl unter Einwirkung der Antriebseinheit 13 auf die Konsole 15 als auch unter Einwirkung des Auslegers 8 und/oder des Drehstiels 9'. Nach Aufhebung der Blockierung der Greiferschalen 19, 20 können auch in der in Fig. 10 dargestellten Position des Greifers 21 unter Einwirkung der Antriebseinheit 26 zwischen Konsole 15 und Greiferschale 20 Baggerarbeiten ausgeführt werden, z.B. schräg unter im Erdreich verlegten Leitungen, Rohren od. dgl. Somit ist es möglich, den Hydraulik-Bagger ohne jeden Umbau sowohl zum Greifen als auch zum Löffeln einzusetzen.The rotary handle 9 'can be rotated by means of the turntable 16' together with the drive unit 13 and mounted on the bracket 15 gripper 21 about its vertical vertical axis 46. The rotary handle 9 'can also be pivoted by means of the boom 8. In addition, the console 15 can be pivoted with the gripper 21 thereon under the action of the drive unit 13 and the parallelogram of the boom 15 and the levers 38 and 44 about the pivot axis 12 at the lower end of the rotary handle 9 ', so that the gripper 21 also obliquely can be employed, as shown in Fig. 10. Finally, as shown in FIG. 10, when the gripper 21 is closed and the gripper shells 19 are locked mechanically, the gripper cup 19 can be spooned over the upper, toothed spoon edge 33 both under the action of the drive unit 13 on the console 15 and under the action of the jib 8 and / or. or the rotary handle 9 '. After removal of the blocking of the gripper shells 19, 20 can also in the position shown in Fig. 10 of the gripper 21 under the action of the drive unit 26 between the bracket 15 and gripper shell 20 dredging work are carried out, for example, diagonally under underground pipes, pipes od. Like. Thus, it is possible to use the hydraulic excavator without any modification both for gripping and for spooning.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

0101
Hydraulik-BaggerHydraulic excavators
0202
Reifentires
0303
Fahrgestellchassis
0404
Drehkranzslewing ring
0505
Maschinenteilmachinery
0606
Führerhauscabin
0707
Plattformplatform
0808
Auslegerboom
0909
EndauslegerarmEndauslegerarm
09'09 '
DrehstielSwivel handle
1010
Arbeitsgerätimplement
11, 1211, 12
Schwenkachseswivel axis
1313
Antriebseinheitdrive unit
1414
Trägercarrier
1515
Konsoleconsole
1616
Drehgetrieberotary gear
16'16 '
Drehkranzslewing ring
1717
Befestigungslaschemounting tab
1818
Halterholder
1919
Greiferschale (links)Grapple shell (left)
2020
Greiferschale (rechts)Claw shell (right)
2121
Greifergrab
22, 2322, 23
Schwenkachseswivel axis
24, 2524, 25
Stirnzahnradspur gear
2626
Antriebseinheitdrive unit
2727
Öffnungopening
2828
Halterung (obere)Bracket (upper)
2929
Halterung (untere)Bracket (lower)
30, 3130, 31
Schwenklagerpivot bearing
3232
Achse (von Teil 4)Axis (from part 4)
3333
Löffelkantespoon edge
3434
Sperreinrichtunglocking device
3535
Anschlagbolzenstop pin
3636
Ausnehmungrecess
37, 37'37, 37 '
Lageraugebearing eye
3838
Hebellever
3939
Festpunktbenchmark
39'39 '
Schwenkachseswivel axis
4040
Lagerstelledepository
4141
HolmHolm
4242
Lagerstelledepository
4343
Gelenkjoint
4444
Hebellever
4545
Kopfteilheadboard
4646
Achseaxis

Claims (9)

Arbeitsgerät für einen Bagger, insbesondere zum Bodenaushub beim Gräbenziehen mit einem Hydraulik-Bagger mit mehrteiligem Ausleger, mit einem am freien Ende des Endauslegerarmes anbringbaren, schwenkbaren Träger mit einem Halter für die an den Oberseiten offenen Greiferschalen eines Greifers, dadurch gekennzeichnet, dass der Greifer (21) durch mechanische Blockierung der geschlossenen Greiferschalen (19, 20) am Halter (18) zum Löffel umrüstbar ist.Working tool for an excavator, in particular for digging excavated trenches with a hydraulic excavator with multi-part boom, with a attachable at the free end of Endauslegerarmes, pivotable carrier with a holder for the open at the tops of the hook shells of a gripper, characterized in that the gripper ( 21) by mechanical blocking of the closed gripper shells (19, 20) on the holder (18) can be converted to the spoon. Arbeitsgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Greiferschalen (19, 20) in Schwenkachsen am Halter (18) gelagert und zur Schwenkbewegung mechanisch miteinander gekoppelt sind, dass zum Öffnen und Schließen der Greiferschalen (19, 20) zwischen dem Träger (14) und der einen Greiferschale (20) eine Antriebseinheit (26) angeordnet ist und dass die andere Greiferschale (19) mittels einer Sperreinrichtung in der Schließstellung am Halter (18) blockierbar ist.Working apparatus according to claim 1, characterized in that the gripper shells (19, 20) are mounted in pivot axes on the holder (18) and mechanically coupled to the pivoting movement, that for opening and closing the gripper shells (19, 20) between the carrier (14). and a gripper cup (20) is arranged a drive unit (26) and that the other gripper cup (19) by means of a locking device in the closed position on the holder (18) can be blocked. Arbeitsgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass jede Greiferschale (19, 20) mittels je einer Schwenkachse (22, 23) am Halter (18) gelagert ist und dass die Schwenkachsen (22, 23) parallel zueinander und im Abstand voneinander angeordnet und mittels drehfest an den Schwenkachsen (22, 23) der Greiferschalen (19, 20) angeordneter, miteinander in Eingriff stehender Zahnräder (24, 25) mechanisch gekoppelt sind.Implement according to claim 1 or 2, characterized in that each gripper cup (19, 20) by means of a respective pivot axis (22, 23) on the holder (18) is mounted and that the pivot axes (22, 23) arranged parallel to each other and at a distance from each other and by means of non-rotatably mounted on the pivot axes (22, 23) of the gripper shells (19, 20) arranged with each other engaged gears (24, 25) are mechanically coupled. Arbeitsgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwei treibende Stirnzahnräder (25) mit gemeinsamer, am Halter (18) gelagerter Schwenkachse (23) an der angetriebenen Greiferschale (20) und zwei angetriebene Stirnzahnräder (24) mit gemeinsamer, am Halter (18) gelagerter Schwenkachse (22) an der getriebenen Greiferschale (19) angeordnet sind.Working tool according to one of claims 1 to 3, characterized in that two driving spur gears (25) with common, on the holder (18) mounted pivot axis (23) on the driven gripper shell (20) and two driven spur gears (24) with common, on Holder (18) mounted pivot axis (22) on the driven gripper shell (19) are arranged. Arbeitsgerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Sperreinrichtung aus in der Schließstellung zwischen den aneinandersto-ßenden Seitenwänden der Greiferschalen (19, 20) angreifenden, am Halter (18) befestigten Anschlagbolzen (34) ausgebildet ist.Implement according to one of claims 1 to 4, characterized in that the locking device is formed in the closed position between the abutting side walls of the gripper shells (19, 20) acting on the holder (18) fixed stop pin (34). Arbeitsgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Träger (14) am freien Ende des Endauslegerarmes (9) unter Zwischenschaltung eines Drehgetriebes (16) zur Drehbewegung des Greifers (21) anordenbar ist.Working tool according to one of claims 1 to 5, characterized in that the carrier (14) at the free end of the Endauslegerarmes (9) with the interposition of a rotary gear (16) for rotational movement of the gripper (21) can be arranged. Arbeitsgerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass an der senkrecht zu den Schwenkachsen (22, 23) der Greiferschalen (19, 20) und oberhalb der an der Oberseite vollständig offenen einen Greiferschale (19) angeordneten Vorderseite des Trägers (14) zwei im vertikalen Abstand voneinander angeordnete Halterungen (28, 29) angeordnet sind, deren obere Halterung (28) zur Befestigung des Trägers (14) an einer am Endauslegerarm (9) anordenbaren Antriebseinheit (13) und deren untere Halterung (29) zur Befestigung des Trägers (14) am freien Ende des Endauslegerarmes (9) beim Löffeln mit geschlossenem Greifer (21) bei gesperrten und arretierten Greiferschalen (19, 20) dienen.Working tool according to one of claims 1 to 6, characterized in that on the perpendicular to the pivot axes (22, 23) of the gripper shells (19, 20) and above the fully open at the top of a gripper shell (19) arranged front the carrier (14) are arranged two vertically spaced-apart holders (28, 29), the upper holder (28) for fixing the carrier (14) to a Endauslegerarm (9) can be arranged drive unit (13) and the lower holder ( 29) for attachment of the carrier (14) at the free end of the Endauslegerarmes (9) when spooning with closed gripper (21) in locked and locked gripper shells (19, 20) are used. Arbeitsgerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Endauslegerarm (9) aus einem Kopfteil (45), einem Drehkranz (16') und einem Drehstiel (9') ausgebildet ist, an dessen unterem Ende eine Konsole (15) für den Träger (14) mit dem Greifer (21) angelenkt ist, und dass am Drehstiel (9') eine Antriebseinheit (13) zum Verschwenken der Konsole (15) gegenüber dem Drehstiel (9') angeordnet ist.Working tool according to one of claims 1 to 6, characterized in that the Endauslegerarm (9) of a head part (45), a turntable (16 ') and a rotary handle (9') is formed, at the lower end of a console (15) for the carrier (14) with the gripper (21) is articulated, and that on the rotary handle (9 ') a drive unit (13) for pivoting the console (15) relative to the rotary handle (9') is arranged. Arbeitsgerät nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Antriebseinheiten (13, 26) als Hydraulik-Zylinderkolbeneinheiten ausgebildet sind.Working tool according to one of claims 1 to 8, characterized in that the drive units (13, 26) are designed as hydraulic cylinder piston units.
EP07090046A 2006-03-20 2007-03-14 Implement for an excavator Not-in-force EP1837445B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006013451A DE102006013451B4 (en) 2006-03-20 2006-03-20 Working tool for an excavator

Publications (3)

Publication Number Publication Date
EP1837445A2 true EP1837445A2 (en) 2007-09-26
EP1837445A3 EP1837445A3 (en) 2007-11-21
EP1837445B1 EP1837445B1 (en) 2009-11-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07090046A Not-in-force EP1837445B1 (en) 2006-03-20 2007-03-14 Implement for an excavator

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EP (1) EP1837445B1 (en)
AT (1) ATE448364T1 (en)
DE (2) DE102006013451B4 (en)

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CN101531328B (en) * 2008-03-12 2011-07-20 中国钢铁股份有限公司 Crane device positioning system
CN104411893A (en) * 2012-06-27 2015-03-11 Jhl株式会社 Grasping device and construction machine
WO2017161458A1 (en) * 2016-03-23 2017-09-28 Ami Attachments Inc. Robust multi-tool assembly for hydraulic excavators
CN107429497A (en) * 2014-10-13 2017-12-01 景园技术股份公司 Excavator dipper with rotating device
US10774501B2 (en) 2016-03-23 2020-09-15 Ami Attachments Inc. Robust multi-tool assembly for hydraulic excavators

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN111729927B (en) * 2020-06-16 2022-01-28 中国地质环境监测院 Efficient soil remediation device and remediation method thereof

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DE858673C (en) * 1941-05-18 1952-12-08 Otto Thielemann Deep digging excavator with a spoon pivoted on the fly jib
DE1092394B (en) * 1954-02-03 1960-11-03 Hans Liebherr Excavator whose digging tool consists of a pair of shovels that can be used both as a gripper and as a deep bucket
US2826838A (en) * 1954-04-08 1958-03-18 Blaw Knox Co Four-rope clamshell cleanup type bucket
DE1734191U (en) * 1956-07-07 1956-11-15 Franz Jun Fischer HIGH-LOW BUCKET GRIPPERS.
US3116845A (en) * 1960-06-28 1964-01-07 Wain Roy Corp Material handling apparatus
DE2520141A1 (en) * 1974-05-08 1975-11-20 Poclain Sa EXCAVATOR SHOVEL
US4889466A (en) * 1985-07-26 1989-12-26 Kabushiki Kaisha Komatsu Seisakusho Control device for a power shovel
DE3934186A1 (en) * 1989-10-13 1991-05-08 Juergen Nagler Two-shell grab suspension on excavator boom - has ram operated hinged mounting plate at grab swivel ring
EP0459100A1 (en) * 1990-05-31 1991-12-04 Rolf Mieger Bucket
DE4133505A1 (en) * 1990-11-15 1992-05-21 Juergen Kulle DEVICE FOR GUIDING AT LEAST ONE TOOL
EP0728874A2 (en) * 1995-02-24 1996-08-28 Josef Riepl GmbH Grab bucket with two shells
US6098321A (en) * 1999-05-07 2000-08-08 Logan; John Duncan Bucket converter for an excavation bucket

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101531328B (en) * 2008-03-12 2011-07-20 中国钢铁股份有限公司 Crane device positioning system
CN104411893A (en) * 2012-06-27 2015-03-11 Jhl株式会社 Grasping device and construction machine
CN104411893B (en) * 2012-06-27 2015-11-25 Jhl株式会社 Grasping device and building machinery
CN107429497A (en) * 2014-10-13 2017-12-01 景园技术股份公司 Excavator dipper with rotating device
EP3235957A4 (en) * 2014-10-13 2018-10-17 Kyungwontech Co., Ltd Excavator arm having rotation device
WO2017161458A1 (en) * 2016-03-23 2017-09-28 Ami Attachments Inc. Robust multi-tool assembly for hydraulic excavators
US10774498B2 (en) 2016-03-23 2020-09-15 Ami Attachments Inc. Robust multi-tool assembly for hydraulic excavators
US10774501B2 (en) 2016-03-23 2020-09-15 Ami Attachments Inc. Robust multi-tool assembly for hydraulic excavators

Also Published As

Publication number Publication date
EP1837445A3 (en) 2007-11-21
DE502007001937D1 (en) 2009-12-24
EP1837445B1 (en) 2009-11-11
DE102006013451A1 (en) 2007-09-27
DE102006013451B4 (en) 2009-09-17
ATE448364T1 (en) 2009-11-15

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