DE3507612C1

DE3507612C1 - Mechanical shovel with laterally tiltable shovel

Info

Publication number: DE3507612C1
Application number: DE19853507612
Authority: DE
Inventors: Rolf 7951 Kirchdorf Mieger
Original assignee: Liebherr Hydraulikbagger GmbH
Current assignee: Liebherr Hydraulikbagger GmbH
Priority date: 1985-03-04
Filing date: 1985-03-04
Publication date: 1986-07-31

Abstract

A wheeled loader is provided with a basic frame linked to the shovel arms. The shovel, the side parts of which are formed by pivotable and lockable closure flaps, is mounted on the basic frame in such a way that it can be pivoted laterally about a transverse axis. In order to be able to tilt the shovel laterally to both the left and right in an adequate method of dumping without having to widen the shovel to one side, a further trough-shaped base (8, 8') laterally extendable beyond the shovel by a drive (9) is displaceably guided on the base of the pan (7) of the shovel. <IMAGE>

Description

Zum Ausschieben der jeweils gewünschten Bodenhälfte können die verschieblichen Bodenhälften durch einen Hydraulikzylinder gelenkig miteinander verbunden sein, wobei eine Einrichtung zum Verriegeln der der ausgeschobenen Bodenhälfte gegenüberliegenden Bodenhälfte vorgesehen ist Diese Verriegelungseinrichtung kann aus zwei mit jeweils einer Bodenhälfte verbundenen Verriegelungsstangen bestehen, die an ihren freien Enden mit hakenförmigen Teilen zum Verriegeln auf dem Achszapfen auf der gegenüberliegenden Seite des Grundrahmens versehen sind, so daß die Verriegelung der auszuschiebenden Bodenhälfte nach dem Verschwenken der Wanne gelöst wird Ein Ausführungsbeispiel eines erfindungsgemäßen Schaufelladers mit einer seitlich kippbaren Schaufel wird nachstehend anhand der Zeichnung näher erläutert In dieser zeigt F i g. 1 eine Rückansicht der Schaufel, F i g. 2 einen Schnitt durch die Schaufel nach F i g. 1, F i g. 3 einen Längsschnitt durch die Schaufel nach Fig. 1, F i g. 4 einen Längsschnitt durch den Bodenbereich der Schaufel nach F i g. 1 und F i g. 5 eine Unteransicht der seitlichen lösbaren Schwenkachsen An den in nicht dargestellter Weise in dem Schaufellader um horizontale Achsen schwenkbar gelagerten Schaufelarmen (4) ist der mit den Lagergabeln (3) versehene Grundrahmen (1) der Schaufel schwenkbar gelagert. Der Grundrahmen (t) ist in üblicher Weise noch mit einer weiteren mittigen Lagergabel (3') versehen, die dem Anlenken des Schwenkantriebes zum Verschwenken der Schaufel um die Achsen (3") dient Die muldenförmige Wanne (7) ist im Bereich ihrer Enden mit jeweils gegabelten dreieckigen Lagerstücken (7', 7") versehen, mit denen diese auf den Achszapfen (2', 2") im Grundrahmen (1) gelagert ist Die Achszapfen (2', 2") sind in Führungen des Grundrahmens in der aus F i g. 5 ersichtlichen Weise axial verschieblich geführt und über schwenkbar gelagerte Winkelhebel mit der Kolbenstange des Hydraulikzylinders (6) verbunden, so daß sie zur Entriegelung aufeinander zu nach innen und zur Verriegelung der Wanne (7) nach außen geschoben werden können. To push out the desired bottom half, you can use the sliding Bottom halves are articulated to one another by a hydraulic cylinder, wherein a device for locking the opposite of the extended bottom half The bottom half is provided. This locking device can consist of two with each a bottom half connected locking rods exist at their free Ends with hook-shaped parts for locking on the stub axle on the opposite one Side of the base frame are provided so that the locking of the push-out The bottom half is released after pivoting the tub a shovel loader according to the invention with a laterally tiltable shovel explained in more detail below with reference to the drawing. In this figure, FIG. 1 is a rear view the shovel, F i g. 2 shows a section through the blade according to FIG. 1, Fig. 3 a longitudinal section through the blade according to FIG. 1, F i g. 4 one Longitudinal section through the bottom area of the shovel according to FIG. 1 and F i g. 5 a Bottom view of the lateral releasable pivot axes to the not shown Way in the shovel loader pivotably mounted about horizontal axes shovel arms (4) the base frame (1) of the shovel provided with the bearing forks (3) can be pivoted stored. The base frame (t) is in the usual way with another central one Bearing fork (3 ') provided, the articulation of the swivel drive for swiveling the shovel around the axes (3 ") is used. The trough-shaped trough (7) is in the area their ends provided with forked triangular bearing pieces (7 ', 7 "), with which this is mounted on the axle journals (2 ', 2 ") in the base frame (1) The axle journals (2 ', 2 ") are in guides of the base frame in the manner shown in FIG axially displaceable and via pivoted angle levers with the piston rod of the hydraulic cylinder (6) connected so that they approach each other for unlocking can be pushed inwards and outwards to lock the tub (7).

In der Wanne (7) der Schaufel sind zwei muldenförmige Böden (8,8') verschieblich geführt. Diese muldenförmigen Böden sind mit aus stegförmigen Blechen (20, 20') bestehenden Lagerböcken verschweißt, die die Wanne (7) in Langlöchern (21, 21') durchsetzen und an denen unterhalb der Wanne (7) die Enden des Hydrozylinders (9) angelenkt sind. In the trough (7) of the shovel there are two trough-shaped bases (8.8 ') displaceably guided. These trough-shaped floors are made of web-shaped sheets (20, 20 ') welded existing bearing blocks, which the trough (7) in elongated holes (21, 21 ') and on those below the tub (7) the ends of the hydraulic cylinder (9) are hinged.

Die verschieblichen Bodenhälften (8, 8') sind jeweils mit weiteren stegförmigen Lagerböcken (22, 22') verschweißt, die die Wanne (7) in den Langlöchern (23, 23') durchsetzen. An den Enden dieser Lagerböcke (22, 22') sind Verriegelungsstangen (12, 12') angelenkt, die endseitig mit nach unten offenen hakenförmigen Stücken (24, 24') versehen sind, die zur Verriegelung der muldenförmigen Böden (8,8') auf den Achszapfen (2,2') eingehakt sind Zum Kippen der Schaufel nach der einen oder der anderen Seite ist mittig auf dem Grundrahmen (1) der Kippzylinder (5) gelagert, dessen Kolbenstange an dem hochgezogenen hinteren Rand der Wanne (7) angelenkt ist. The displaceable bottom halves (8, 8 ') are each with further Web-shaped bearing blocks (22, 22 ') welded together, which form the trough (7) in the elongated holes (23, 23 ') enforce. Locking rods are located at the ends of these bearing blocks (22, 22 ') (12, 12 ') articulated, the ends with downwardly open hook-shaped pieces (24, 24 ') are provided to lock the trough-shaped floors (8, 8') the axle journals (2, 2 ') are hooked in. To tilt the shovel towards one or on the other side, the tilt cylinder (5) is mounted in the middle of the base frame (1), whose piston rod is hinged to the raised rear edge of the tub (7).

Die Schaufel (8) ist endseitig durch die Verschlußklappen (13) geschlossen, die um Schwenkachsen (14) im oberen Bereich der Wanne (7) schwenkbar gelagert sind. An den Enden der muldenförmigen Böden (8, 8') sind Haltenocken (15) vorgesehen, die die Verschlußklappen (13) im eingezogenen Zustand der Bodenhälften verriegeln. The shovel (8) is closed at the end by the closure flaps (13), which are pivotably mounted about pivot axes (14) in the upper region of the tub (7). Retaining cams (15) are provided at the ends of the trough-shaped bases (8, 8 '), which lock the flaps (13) in the retracted state of the base halves.

Die Bodenhälften selbst sind auf dem Boden der Wanne (7) durch Führungsstücke (10) querverschieblich geführt Die nach links und nach rechts hin gekippten Stellungen der Wanne (7) mit ausgeschobenen Bodenhälften sind in F i g. 1 gestrichelt angedeutet worden. The bottom halves themselves are on the bottom of the tub (7) by means of guide pieces (10) horizontally displaceable The positions tilted to the left and to the right the tray (7) with the bottom halves pushed out are shown in FIG. 1 indicated by dashed lines been.

Zum Kippen nach links oder rechts hin ist eine hydraulische Ablaufsteuerung vorgesehen, die die linken oder rechten Achszapfen (2,2') entriegelt und den Kippzylinder (5) sowie die Bodenhälfte (8, 8) ausschiebenden Hydrozylinder (9) betätigt - Leerseite - There is a hydraulic sequence control for tilting to the left or right provided that unlocks the left or right axle journals (2.2 ') and the tilt cylinder (5) and the bottom half (8, 8) extending hydraulic cylinder (9) is actuated - Blank page -

Claims

Claims 1. Shovel loader with one hinged to the shovel arms Base frame. on which the scoop, which has a trough-shaped scoop trough, the side parts of which are formed by pivotable and lockable flaps, is mounted laterally pivotable about a transverse axis, d a du r c h g e -marked. that on the bottom of the trough (7) of the shovel by a drive (9) on the Shovel trough laterally movable further corresponding trough-shaped floor (8, X) is displaceably guided 2. Shovel loader according to claim 1, characterized in that that the length of the trough (7) corresponding to the displaceable floor is divided in the middle and each bottom half (8, 8 ') can be extended laterally independently of the other 3. Shovel loader according to Claim 2, characterized in that each of the base halves (8,8 ') is provided with a locking cam (15), which in the locked state the closing flaps pivotably mounted in the area of the upper edges of the tub (7) (13) attack their outer edge areas 4. Shovel loader according to one of the claims 1 to 3, characterized in that the tub (7) in the region of its ends on the The base frame (1) is pivotably mounted around the journal (2 ', 2 ") for unlocking the tub (7) are guided axially displaceably by hydraulic cylinders (6) 5. Shovel loader according to one of claims 2 to 4, characterized in that the displaceable Bottom halves (8, 8 ') are articulated by a hydraulic cylinder (9) pushing them out are interconnected and that a device for locking the extended Bottom half opposite bottom half is provided 6. Shovel loader according to Claim 5, characterized in that the locking device consists of each a bottom half (8, 8 ') connected locking rod (12, 12'), which at its free end with a hook-shaped part (24, 24 ') for locking onto the Axle journal (2 ', 2 ") is provided on the opposite side of the base frame (1), so that the locking of the bottom half to be pushed out after pivoting the Tub (7) is released The invention relates to a shovel loader with a to the Shovel arms hinged base frame on which a trough-shaped shovel pan having a shovel, the side parts of which by pivotable and lockable closure flaps are formed, mounted laterally pivotable about a transverse axis is shovel loader with laterally tiltable blades are known in different embodiments The blades can be arranged asymmetrically in order to have a sufficient bulk width to reach. It can also be provided in the blade that the Reduce the dumping angle. The asymmetrical arrangement of the blade results in a unwanted widening of the shovel loader, which is detrimental when driving on the Road and in addition to an external central force application when pushing the Shovel leads, From DE-AS 1756 193 is a shovel loader of the aforementioned Kind of known in which the entire trough-shaped shovel pan is laterally displaceable is to achieve a wide pouring distance on both sides.

PGr application WO 84100043 discloses a shovel loader. at each one side wall can be swiveled out.

The object of the invention is to provide a shovel loader of the type specified at the beginning Kind to create, whose shovel is with sufficient bulk width both after left and right can tilt sideways without widening the Shovel to one side or interference or restriction in normal Pushing operation has to be accepted since this task is achieved according to the invention solved by the specified in the characterizing part of claim 1 features The trough-shaped floor, which can be extended telescopically, enables the desired dump width to the side of the shovel loader. In the retracted state, the retractable Bottom just a double bottom of the tub, which allows normal pushing operation not affected In contrast to the shovel loader known from DE-AS 1756 193 the entire tub does not have to be moved. The length is expedient The sliding base corresponding to the tub is divided in the middle, with each base half independently of the other can be extended laterally to the desired lateral To reach bulk distance. In this case, each of the bottom halves can in a particularly advantageous manner be provided with a locking cam, which in the locked state of the im Area of the upper edges of the tub pivotably mounted closure flaps on their Attacking the outer edge areas After tilting the tub, the one on the tilted one The bottom half on the side is pushed out, this automatically unlocks the corresponding one side flap.

In a further embodiment of the invention it is provided that the tub is pivotable in the area of their ends on the base frame about stub axles, which for Unlocking the tub are guided axially displaceably by hydraulic cylinders. By the side swivel bearings of the tub allow large dumping angles to be achieved.