EP1323871B1 - Dispositif de stabilisation pour engins de travaux tels des pelles hydrauliques ou analogues - Google Patents

Dispositif de stabilisation pour engins de travaux tels des pelles hydrauliques ou analogues Download PDF

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Publication number
EP1323871B1
EP1323871B1 EP20020028802 EP02028802A EP1323871B1 EP 1323871 B1 EP1323871 B1 EP 1323871B1 EP 20020028802 EP20020028802 EP 20020028802 EP 02028802 A EP02028802 A EP 02028802A EP 1323871 B1 EP1323871 B1 EP 1323871B1
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EP
European Patent Office
Prior art keywords
supporting
articulated
gear
supporting legs
pivoting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20020028802
Other languages
German (de)
English (en)
Other versions
EP1323871A3 (fr
EP1323871A2 (fr
Inventor
Bernd Wager
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.)
Liebherr Hydraulikbagger GmbH
Original Assignee
Liebherr Hydraulikbagger GmbH
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Filing date
Publication date
Application filed by Liebherr Hydraulikbagger GmbH filed Critical Liebherr Hydraulikbagger GmbH
Publication of EP1323871A2 publication Critical patent/EP1323871A2/fr
Publication of EP1323871A3 publication Critical patent/EP1323871A3/fr
Application granted granted Critical
Publication of EP1323871B1 publication Critical patent/EP1323871B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs

Definitions

  • the present invention relates to a supporting device for construction machines such as hydraulic excavators and the like, with a support foot which is pivotally articulated on a machine-side support piece, preferably the vehicle frame or the chassis, and a pivot drive for swinging out and in of the outrigger, wherein the outrigger of several Support legs is made, which are mounted extendable to each other in the manner of a telescope, wherein the support legs a locking device for locking the support legs in at least one position relative to each other, in particular in the extended position assigned.
  • Outriggers for construction equipment have already become known in various designs. However, these are still able to be improved. In particular, in known supporting devices, the enlargement of the effective support width by the extension of the outriggers is still not large enough. If the outriggers, however, made very long and thus far swing out, collision problems arise z. B. with the superstructure of the hydraulic excavator.
  • a supporting device of the type mentioned is from the FR 26 00 599 known, which shows a pivotable support leg, which is retractable in a pivotally articulated pivot piece.
  • the support legs are telescoped. On the other hand, they are swung out. On the one hand this creates a wide cantilever and thus a broad support base in the extended state, on the other hand, the support device can be pushed together or retracted in the retracted state into a compact, small-sized configuration, so that collision problems z. B. are minimized with the rotating superstructure and the like.
  • the present invention is therefore an object of the invention to provide an improved supporting device of the type mentioned above, which avoids the disadvantages of the prior art and the latter further develops in an advantageous manner.
  • a simple actuating drive a precise despite the several degrees of freedom retraction and extension can be achieved without generating collision problems of the support device.
  • the support legs of the outrigger be telescoped automatically when swinging out and the support foot.
  • a mechanical positive control indicates the extended position of the support legs to each other depending on the pivot position of the outrigger.
  • the telescopic drive is actuated by the rotary actuator or is coupled to this, so that automatically extend the support legs when the outrigger is swung out and vice versa.
  • Such a forced control ensures that when Nachobenschwenken the outrigger no collision with overlying components of the construction machine such.
  • a linkage in particular a slider crank mechanism is provided, which is constructed in the manner of a two-bladed and is actuated by pivoting the support foot.
  • a first transmission element may preferably be hinged on the inside of a first of the two support legs pivotally, while a second transmission element, which is pivotally connected to the first transmission element, preferably can be pivoted on the second of the two support legs also pivotable in the interior.
  • the second support leg extends or retracts relative to the first one.
  • one of the two transmission elements is designed as a driving crank.
  • a swivel drive element which is connected on the one hand to the said transmission element and on the other hand is hinged on the support side and during pivoting of the support foot executes a pivotal or rotary movement relative to the first support leg.
  • a pivot drive element can be provided on the machine side firmly arranged gear profile, in particular a rotationally fixed on the pivot axis of the outrigger with the retaining piece seated gear.
  • the first of the two gear elements of the joint gear is provided around its pivot axis with a corresponding gear profile, so that it rolls on the machine side fixed gear profile when the outrigger is pivoted.
  • a pressure medium piston-cylinder unit is preferably provided, which is articulated on the one hand on the support foot and on the other side of the machine, preferably on the support piece on which the support foot is pivotally mounted.
  • the articulation of the piston-cylinder unit on the outrigger can be provided on different support legs of the outrigger.
  • the piston-cylinder unit is articulated to the first support leg, which is pivotally mounted on the machine-side support piece, so that with small strokes of the piston-cylinder unit, a relatively large pivotal movement of the outrigger can be realized.
  • the articulation point may be arranged closer to the pivot axis of the outrigger than towards the free end of the first support leg.
  • the support foot can basically consist of different numbers of support legs. According to a preferred embodiment of the invention, two support legs are provided, d. H. a first support leg which is pivotally hinged to the support piece, and a second support leg which is telescopically mounted on the second support leg.
  • the locking device can be formed positively acting and manually operable.
  • holes can be provided in the support legs, which are aligned with each other with a corresponding position of the support legs, so that a locking pin can be inserted into the aligned holes and thus the support legs are locked to each other in the respective austeleskop faced position.
  • a plurality of pairs of holes may be provided, which are aligned with each other in different extension positions.
  • the telescopic drive for extending and retracting the support legs can be arranged in the interior of the support legs.
  • the telescopic drive simultaneously forms the locking device which fixes the support legs in the respective position.
  • a self-locking threaded spindle can be provided.
  • the locking device acts on the telescopic drive and thus only indirectly on the support legs, so that with small locking forces only the telescopic drive needs to be maintained and thus still a safe determination of the support legs can be achieved.
  • the linkage is preferably designed such that it assumes a stretched position in the extended position of the support legs, d. H.
  • the two pivotally interconnected gear elements essentially define a straight line. If necessary, they can also assume a slightly overstretched position.
  • a gear stop is provided which defines the stretched position or the slightly overstretched position of the gear elements. Against this gear stop drive one or both of the transmission elements when they reach the stretched position.
  • a spring device may be provided which biases the linkage in its extended position.
  • the gear element acting as a crank has an oblong hole for forming the articulated connection with the other gear element, so that it can be brought into an overstretched position.
  • the in FIG. 1 shown support foot 1 consists of two support legs 2 and 3, which are telescoped in the manner of a telescope.
  • the first support leg 2 is pivotally mounted with its one end about a horizontal axis on the machine-side support piece 4.
  • the pivot connection can be realized by a bolt passing through the support piece 4 and the support leg 2, which defines the pivot axis 5 of the support foot 1.
  • the support foot 1 is pivotable between two positions, between a substantially vertically upwardly rest position and an obliquely outwardly and downwardly facing support position in which the support foot includes an acute angle to the horizontal, the 45 degrees or less can amount.
  • a hydraulic cylinder 7 is provided as a pivot drive 6, which is articulated with its piston rod to the first support leg 2 and is articulated with its cylinder on the support piece 4.
  • the articulation or pivot axes of the hydraulic cylinder 7 are parallel to the pivot axis 5 of the outrigger 1.
  • the arrangement of the hydraulic cylinder 7 is made according to Figure 1 such that the orientation of its longitudinal axis in the pivoted position of the outrigger 1 is approximately parallel to the longitudinal axis of the outrigger , in the raised position of the outrigger 1, the hydraulic cylinder 7 is with its longitudinal axis - roughly speaking - approximately perpendicular to the outrigger. 1
  • the support legs 2 and 3 are manually on and telescoped.
  • a locking device is a detachable connection, z. B. plug pin connection provided.
  • a first bore or a first alignment of the hole pair is provided in the first support leg 2.
  • a plurality of spaced apart in the longitudinal direction of the support leg second holes 9 are provided, which are aligned in a corresponding position of the second support leg 3 with the first holes 8.
  • a locking pin 10 can be pushed through the aligned pairs of holes to lock the support legs 2 and 3 together.
  • a support plate 11 is pivotally connected about a pivot axis 12. Said pivot axis 12 is parallel to the pivot axis 5 of the outrigger 1. Due to gravity, the uprising plate 11 is substantially always in horizontal alignment when the outrigger is swung out.
  • a threaded spindle could be integrated in these, by means of which the support legs could be telescoped.
  • the threaded spindle could be provided alternatively or in addition to the socket pin connection.
  • FIG. 2 shown support foot 1 basically has the same structure as the outrigger of the previously described embodiment.
  • the execution according to FIG. 2 differs from the previous one by a telescoping drive, the off automatically and telescopically the support legs 2 and 3 during extension and pivoting of the outrigger 1.
  • the telescopic drive 13 according to FIG. 2 is designed as a linkage, which is integrated in the support foot 1, that is arranged in the interior of the support legs 2 and 3.
  • a first coupling member 14 is pivotally hinged to the first support leg 2, namely about a pivot axis 5 of the support foot 1 parallel articulation axis 15, which is in the immediate vicinity of said pivot axis 5 of the outrigger 1 (see. FIG. 2 ).
  • a second coupling member 16 is pivoted on the second support leg 3, namely about a pivot axis 5 of the support foot 1 also parallel pivot axis 17.
  • the two coupling members 14 and 16 are directly connected to each other by a hinge 18. They form a planar linkage. In this case, the first coupling member 14 forms the crank of the transmission.
  • the arrangement of the two coupling members 14 and 16 is made such that in the downwardly pivoted position of the support foot 1, the two coupling members 14 and 16 occupy an extended position and define a straight line substantially. In the upwardly pivoted position of the support foot 1, the two coupling members 14 and 16 are pivoted together.
  • the ratio of the two gears 19 and 20 is made such that in the upwardly pivoted position of the outrigger 1, the two coupling members 14 and 16 preferably occupy an acute angle to each other. In this way, a further extension path of the support legs 2 and 3 can be achieved with short coupling links.
  • the achievable thrust stroke of the linkage is utilized to the greatest extent possible.
  • Securing the two support legs 2 and 3 in the extended position is effected by the extended position of the coupling.
  • the extended position of the coupling is defined by a gear stop 21, against which drive one or both of the coupling members when the extended position is reached.
  • a spring device 22 can bias the coupling in its extended position. As FIG. 2 shows, a spring 23 may act on one of the two coupling members 14 or 16 to the transmission stop 21 out.
  • the coupling member acting as a crank has a slot with which it is articulated to the other coupling member (see. FIG. 2a ).
  • the coupling element acting as a crank can be overstretched be, whereby a reliable position assurance of the support legs 2 and 3 is achieved in the extended state.
  • FIG. 3 also shown alternative embodiment of the telescoping drive 13 consists of a planar linkage with two coupling members 14 and 16.
  • the structure of the transmission is largely consistent with that of the previously described embodiment, so that reference is made.
  • the telescopic drive 13 differs by the operation of the linkage.
  • the first coupling member 14 is not connected via a toothing with a bearing-fixed teeth in engagement, but attached to the first support leg 3 about the pivot axis 15 freely pivotally.
  • the coupling formed by the two coupling members 14 and 16 is connected by an actuator 24 with an eccentric 25 which is rotatably connected to the hydraulic cylinder 7.
  • an actuator 24 with an eccentric 25 which is rotatably connected to the hydraulic cylinder 7.
  • the eccentric 25 is attached to the end of the piston rod, with which the piston-cylinder unit is hinged to the first support leg 2.
  • the actuator 24 is articulated. With its other end, the actuator 24 is connected to the hinge 18, which connects the two coupling members 14 and 16.
  • the arrangement is such that the longitudinal axis of the hydraulic cylinder 7 and the straight line, which is defined by the hinge point 26 and the articulation point of the hydraulic cylinder 7 on the support leg 2, are approximately perpendicular to each other. In principle, however, other arrangements are possible. It is important that the pivot point 26 changes its position relative to the support foot 1 when the support foot 1 pivots.
  • the arrangement is such that the actuator 24 is in the extended, ie extended position of the two coupling members 14 and 16 to this substantially perpendicular (see. FIG. 3 ).
  • the actuator 24 as a resilient pressure piece, in particular in the form of a piston-cylinder unit with inserted compression spring formed be.
  • an overstretching of the existing of the eccentric 25 and the actuator 24 coupling could be achieved easily.
  • the coupling formed by the two coupling members 14 and 16 can be brought into an overstretched position in which it moves against a stop, without excessively accurate tolerances would be observed.
  • the actuator 24 is not connected to the joint 18, but with one of the two coupling members 14 and 16.
  • it could be connected to a coupling member having a slot for forming the hinge 18 with the other coupling member, similar to the previously described embodiment.
  • the coupling member 14 can be brought with slot-like recess in an overstretched position, and thus a secure locking of the support legs 2 and 3 can be achieved.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Body Structure For Vehicles (AREA)

Claims (10)

  1. Dispositif de stabilisation pour des engins de travaux tel que des pelles hydrauliques et analogues, avec un pied de stabilisation (1) qui est articulé d'une manière pivotante à une pièce de support côté machine (4), de préférence un cadre de véhicule ou châssis, et une commande de pivotement (6) pour le pivotement vers l'extérieur et vers l'intérieur du pied de stabilisation (1), où le pied de stabilisation (1) est constitué de plusieurs branches de support (2, 3) qui sont fixées les unes aux autres en pouvant être sorties à la manière d'un téléscope, et où est prévue une installation de fixation (28) pour fixer les branches de support (2, 3) dans au moins une position les unes relativement aux autres, caractérisé en ce qu'une commande forcée mécanique est prévue qui commande la position de sortie des branches de support (2, 3) les unes relativement aux autres en fonction de la position de pivotement du pied de stabilisation (1), où est prévu comme entraînement téléscopique (13) pour l'entrée et la sortie des branches de support (2, 3) une transmission à manivelle, qui présente un premier élément de transmission (14) qui est articulé d'une manière pivotante à une première des branches de support (2), un deuxième élément de transmission (16), qui est articulé d'une manière pivotante à un deuxième des branches de support (3) et est relié d'une manière articulée avec le premier élément de transmission (14), et un élément d'entraînement pivotant (19, 20;24) qui est relié à l'un des éléments de transmission (14, 16) et entraîne celui-ci d'une manière correspondante à un pivotement du pied de stabilisation (1).
  2. Dispositif de stabilisation selon la revendication précédente, où l'installation de fixation (28) est réalisée pour agir par concordance des formes, présente de préférence des évidements (8, 9) dans les branches de support (2, 3) qui, lors d'une position correspondante des branches de support, sont alignés, ainsi qu'un élément de verrou (10) pouvant être poussé dans les évidements.
  3. Dispositif de stabilisation selon l'une des revendications précédentes, où est prévu comme commande de pivotement (6) une unité à piston et à vérin (7) à fluide sous pression, qui est articulée d'une part à l'une des branches de support (2) et d'autre part, côté machine, de préférence à la pièce de support (4).
  4. Dispositif de stabilisation selon l'une des revendications précédentes, où l'entraînement téléscopique (13) est disposé à l'intérieur des branches de support (2, 3).
  5. Dispositif de stabilisation selon la revendication précédente, où l'entraînement téléscopique (13) forme en même temps l'installation de fixation (28).
  6. Dispositif de stabilisation selon l'une des revendications précédentes, où la transmission à manivelle est réalisée de telle sorte que dans la position sortie des branches de support (2, 3), elle forme une bielle étirée, où est prévue de préférence une butée de transmission (21) définissant la position étirée ou une légère position sur-étirée.
  7. Dispositif de stabilisation selon l'une des revendications précédentes, où la transmission à manivelle, en tant qu'élément d'entraînement pivotant, possède un profil de roue dentée (20) disposé fixement côté machine.
  8. Dispositif de stabilisation selon l'une des revendications 1 à 6, où la transmission à manivelle, en tant qu'élément d'entraînement pivotant, présente une pièce d'excentrique (25) solidaire en rotation avec la commande de pivotement (6) du pied de stabilisation (1).
  9. Dispositif de stabilisation selon l'une des revendications précédentes, où le pied de stabilisation (1), lorsque l'engin de travaux se trouve sur un sol plan, peut pivoter autour d'un axe horizontal.
  10. Dispositif de stabilisation selon l'une des revendications précédentes, où est articulée d'une manière pivotante et/ou tournante à l'extrémité librement saillante du pied de stabilisation (1) une plaque d'appui (11) avec une face d'appui agrandie.
EP20020028802 2001-12-27 2002-12-23 Dispositif de stabilisation pour engins de travaux tels des pelles hydrauliques ou analogues Expired - Lifetime EP1323871B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20120964U 2001-12-27
DE20120964U DE20120964U1 (de) 2001-12-27 2001-12-27 Abstützvorrichtung für Baumaschinen wie Hydraulikbagger u.dgl.

Publications (3)

Publication Number Publication Date
EP1323871A2 EP1323871A2 (fr) 2003-07-02
EP1323871A3 EP1323871A3 (fr) 2003-07-09
EP1323871B1 true EP1323871B1 (fr) 2008-10-01

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EP20020028802 Expired - Lifetime EP1323871B1 (fr) 2001-12-27 2002-12-23 Dispositif de stabilisation pour engins de travaux tels des pelles hydrauliques ou analogues

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EP (1) EP1323871B1 (fr)
DE (2) DE20120964U1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007522A1 (de) 2005-02-17 2006-08-31 Putzmeister Ag Stützausleger für fahrbare Arbeitsmaschinen
IT1398962B1 (it) * 2010-02-18 2013-03-28 C M C S R L Societa Unipersonale Dispositivo stabilizzatore per macchina operatrice
IT1403343B1 (it) * 2011-01-17 2013-10-17 C M C S R L Societa Unipersonale Dispositivo stabilizzatore per macchine operatrici
RU2469798C2 (ru) * 2011-03-03 2012-12-20 Геннадий Леонидович Багич Устройство принятия душа активируемой водой
DE102011102062A1 (de) * 2011-05-19 2012-11-22 Olaf Telesch Ausleger für ein Lade- und Baggergerät
DE102012215534A1 (de) 2012-08-31 2014-03-06 Putzmeister Engineering Gmbh Verriegelungsvorrichtung
US11401687B2 (en) * 2018-02-13 2022-08-02 Volvo Construction Equipment Ab Surface support assembly for supporting a working machine
CN115259037A (zh) * 2022-07-29 2022-11-01 国网江苏省电力有限公司泰州供电分公司 自行走式履带桅杆垂直升降平台

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1236176A (en) * 1969-06-12 1971-06-23 Josef Kaiser Improvements in or relating to a mobile appliance
US3801068A (en) * 1972-12-22 1974-04-02 Kogen Ind Inc Automatic folding landing gear
US3981514A (en) * 1973-10-15 1976-09-21 Clark Equipment Company Outrigger
JPS5447227A (en) * 1977-09-19 1979-04-13 Tadano Tekkosho:Kk Outrigger
FR2600599A1 (fr) * 1986-06-24 1987-12-31 Guilhem Claire Dispositif de stabilisation d'un engin
IT216971Z2 (it) * 1989-03-10 1991-10-21 Nardi Daniele Martinetto di stabilizzazione e sollevamento
IT1289088B1 (it) * 1996-03-13 1998-09-25 Fki Fai Komatsu Ind Spa Piede stabilizzatore a geometria variabile, in particolare per veicoli movimento terra.

Also Published As

Publication number Publication date
EP1323871A3 (fr) 2003-07-09
DE50212834D1 (de) 2008-11-13
DE20120964U1 (de) 2003-06-12
EP1323871A2 (fr) 2003-07-02

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