EP0750702B1 - Baggerlader - Google Patents

Baggerlader Download PDF

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Publication number
EP0750702B1
EP0750702B1 EP95912312A EP95912312A EP0750702B1 EP 0750702 B1 EP0750702 B1 EP 0750702B1 EP 95912312 A EP95912312 A EP 95912312A EP 95912312 A EP95912312 A EP 95912312A EP 0750702 B1 EP0750702 B1 EP 0750702B1
Authority
EP
European Patent Office
Prior art keywords
bucket
shovel
digger
loader
articulated
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
EP95912312A
Other languages
English (en)
French (fr)
Other versions
EP0750702A1 (de
Inventor
Claude Blondiaux
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0750702A1 publication Critical patent/EP0750702A1/de
Application granted granted Critical
Publication of EP0750702B1 publication Critical patent/EP0750702B1/de
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
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963—Arrangements on backhoes for alternate use of different tools
    • E02F3/964—Arrangements on backhoes for alternate use of different tools of several tools mounted on one machine

Definitions

  • the invention relates to an improved backhoe loader according to the preamble of claim 1.
  • Such a backhoe loader is known from DE-A-3 932 555.
  • a backhoe loader is a motorized machine, comprising on the one hand, a bucket moved hydraulically and capable load more or less material, in particular of loose material, such as earth, and on the other hand a shovel, positioned at the end of an articulated arm, also mu hydraulically, and intended for digging trenches in particular.
  • the bucket is at the front of this type of machine and the shovel at the back.
  • the seat and the machine controls are subject to rotation of 180 °, depending on whether you want to load soil or materials furniture or digging, especially trenches.
  • it is often required to carry out the machine itself such a rotation of 180 °, involving numerous maneuvers, especially when evolves in areas of reduced surface, and especially in the streets.
  • the object of the invention overcomes these drawbacks.
  • a backhoe loader comprising a bucket and a shovel, said shovel being mounted at the end of an articulated arm, and the bucket and the shovel being driven in particular by hydraulic means, characterized in that the bucket and the shovel are implanted and articulated at the same end of the backhoe loader.
  • the invention consists in positioning the bucket and the shovel either at the front of the backhoe loader or at the rear, so to be able to carry out the loading operation almost simultaneously and digging, without changing the driver's position or orientation of the machine, which the backhoe loaders known to date did not allow to get.
  • the shovel can empty the material directly into the bucket, which can then rise to a sufficient height to empty its contents, thereby avoiding rework of said material, and therefore generating an appreciable time saving.
  • the arm actuator of the shovel is mounted on a ring gear or equivalent, vertical axis of rotation integral with the chassis, and on the periphery of which meshes with a pinion actuated by a gear motor.
  • the shovel can rotate about 250 °, so as to leave the field free when the bucket is actuated.
  • the base of the arm of the shovel is articulated on the chassis of the machine according to a hinge axis oriented horizontally and perpendicular to the longitudinal axis of the machine, so as to allow an increase in the tilting of said arm towards the center of the machine by the increased effect of its lifting, and at thus allow, after having folded the shovel to the maximum against his arm actuation, to give the bucket optimum travel.
  • the heat engine ensuring the progression of the backhoe loader and the hydraulic motor associated with the heat engine, intended to allow the hydraulic activation of the bucket and the shovel are positioned under or at or above the driver's seat generally behind the control station, so as to free the traditional location of the engine, i.e. at the front of the machine to allow the positioning of pistons, jacks and axes articulation of the bucket and the articulated arm respectively at the end from which the shovel is mounted.
  • the steering axis of the front steering wheels is laterally off-center.
  • a drawbar can be reversibly attached to the backhoe loader to allow its movement in towed mode, says drawbar further comprising an articulated connecting rod, the other end of which is intended to be fixed also reversibly in the vicinity of the upper attachment point of the actuating arm lifting cylinder the shovel, so as to induce the lifting of the front wheels of the machine when said cylinder is activated.
  • the elevation of the wheels front of the machine results from the support exerted by the bucket on said drawbar, a connecting rod being also secured reversibly on the arms of the bucket and on the chassis of the machine, in order to guarantee the fixed maintenance of the coupling according to this position.
  • Figure 1 is a schematic representation of a side view of the backhoe loader according to the invention.
  • Figure 2 is a front three-quarter view of the backhoe loader of the figure 1.
  • Figure 3 is a schematic perspective representation of a another embodiment of the invention.
  • Figure 4 is a schematic plan view, representative of the operation of the machine according to FIG. 3.
  • Figure 5 is a schematic perspective view of another embodiment of the invention.
  • Figure 6 is a schematic perspective representation of a possibility of coupling the machine according to the invention.
  • the backhoe loader according to the invention is traditionally moved by two rear wheel drive (1) (but it can just as easily be four wheels (1, 2), or even by means of tracks), and is steered by two front directional wheels (2), whose orientation is ensured by via a steering wheel (3) acting at a directional axis (4), itself intervening at the level of the steering shaft connecting the two front wheels (2).
  • the heat engine (5) is located under the seat (6) of the driver, and ensures on the one hand, the progression in translation of the backhoe loader, and secondly, the operation of a hydraulic motor intended to allow the operation of the various tools mounted on the backhoe loader.
  • the backhoe loader comprises in the rear position a three-point hitch, represented by reference (7), at which can be mounted all traditional tools including such a system hitch.
  • the front part of the backhoe loader has a bucket loader (9), articulated at the end of two arms (10), themselves articulated at their other ends at an articulated axis (11) of the chassis (8).
  • This bucket (9) is moved in an upward and downward trajectory by means of a piston-cylinder assembly (15) also integral with the chassis (8), and acting at the level of a connecting member (23), secured to the two arms (10) in the immediate vicinity of the articulation axis (11) of said arms.
  • the arm (13) also comprises three jacks (16, 17, 18), intended to ensure respectively the lifting of the pillar (30), of the pendulum (32) by relative to the boom (31), and of the shovel (12) relative to the pendulum (32).
  • the arm (13) is susceptible to movement between the two articulated arms (10) of the bucket (9).
  • the pillar (30) of the articulated arm (13) supporting the shovel (12) is articulated on the chassis (8) relative to an axis of articulation (14) horizontal and extending perpendicularly by relative to the longitudinal axis (26) of the machine.
  • This axis (14) is also positioned upstream of the articulation axis (11) of the arms (10) of the bucket (9), and the location of the jack (15), so as to allow the shovel (12) to directly empty its contents into the bucket (9) if necessary if necessary.
  • the pillar (30) and the jack (16) which actuates it are secured at their base to a crown toothed (33) with vertical axis of rotation secured to the chassis ( Figure 3), on the periphery of which meshes the pinion (34) of a geared motor (35), advantageously actuated hydraulically.
  • the arm (13) is capable of rotation, for example close to 250 °, suitable for bringing backwards, that is to say towards the control station, the shovel (12), and thus free the front of the machine to allow work to a maximum amplitude of the bucket (9).
  • a drawbar (21) can be attached reversibly to the front of the backhoe loader, for example by bolting, or by means of axle - pin assemblies.
  • a drawbar comprises at its free end a hook (22), likely to be fixed on a tow ball, well known for this application.
  • this drawbar comprises an articulated connecting rod (24), capable of being fixed, also reversibly in the vicinity of the upper attachment point of the jack (16) of the arm (13).
  • the elevation of the wheels front of the machine during its transpor results from the support exerted by the bucket (9) on said drawbar (21), a connecting rod (25) being further secured reversibly on the arms (10) of the bucket (9) and on the chassis (8) of the machine, in order to guarantee that the hitch remains fixed in this position.
  • the backhoe loader of the invention provides greater ease of use, due to its structure, particularly in the context of works where one wishes to carry out simultaneously the operations of loading and digging, but also in places where the possibilities of evolution are reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Operation Control Of Excavators (AREA)

Claims (9)

  1. Baggerlader, der eine Laderschaufel (9) und einen Baggerlöffel (12) aufweist, wobei die Schaufel und der Löffel an dem Ende von Armen (10, 13) angebracht sind und die Schaufel und der Löffel insbesondere mittels einer Hydraulik angetrieben werden,
       dadurch gekennzeichnet,
    daß die Laderschaufel (9) und der Baggerlöffel (12) im Bereich desselben Endes des Baggerladers angelenkt sind;
    daß die Arme (10), an deren Enden die Laderschaufel angebracht ist, gekrümmt sind und
    daß dasjenige Ende der Arme (10), welches dem die Laderschaufel (9) tragenden Ende gegenüberliegt, am oberen Ende eines Stützrahmens angelenkt ist.
  2. Baggerlader gemäß Anspruch 1, dadurch gekennzeichnet, daß die Laderschaufel (9) und der Baggerlöffel (12) in der Nähe des vorderen Endes des Fahrgestells (8) des Baggerladers angelenkt sind.
  3. Baggerlader gemäß einem der Anspniche 1 oder 2, dadurch gekennzeichnet, daß der Arbeitsarm (13) des Baggerlöffels (12) auf einem Drehkranz (33) oder dergleichen mit einer fahrgestellfesten vertikalen Drechachse angebracht ist, wobei ein Ritzel (34) mit dessen Umfang in Eingriff steht, welches von einem Getriebemotor (35) zur Ermöglichung der Schwenkbewegung des Baggerlöffels (12) angetrieben wird.
  4. Baggerlader gemäß einem der Anspniche 1 oder 2, dadurch gekennzeichnet, daß die Stütze (30) des Arbeitsarms (13) des Baggerlöffels (12) an dem Fahrgestell (8) der Maschine mit einer horizontal und rechtwinklig zu der Längsachse (26) der Maschine verlaufenden Schwenkachse (14) angelenkt ist, derart, daß ein verstärktes Einschwenken des Arms in Richtung auf die Mitte der Maschine durch anhaltende Einwirkung der Hochhebebewegung ermöglicht ist, und so, nachdem der Baggerlöffel (12) auf ein Maximum gegen seinem Arbeitsarm (13) zurückgeklappt worden ist, ermöglicht ist, daß der Laderschaufel (9) ein optimaler Hubbereich zur Verfügung steht.
  5. Baggerlader gemäß einem der Anspniche 1 bis 4, dadurch gekennzeichnet, daß der Inhalt des Baggerlöffels (12) direkt in die Laderschaufel (9) entleerbar ist.
  6. Baggerlader gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der den Fahrantrieb bildende Verbrennungsmotor (5) und der dem Verbrennungsmotor zugeordnete Hydraulikmotor zur hydraulische Betätigung der Arbeitsarme (10, 13) der Laderschaufel (9) und des Baggerlöffels (12) unter oder auf Höhe des Fahrersitzes (6), oder hinter diesem angeordnet sind.
  7. Baggerlader gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Lenkwelle (4), die die Lenkachse (20) der vorderen Lenkräder (2) antreibt, seitlich versetzt angeordnet ist.
  8. Baggerlader gemäß einem der Anspniche 1 bis 7, dadurch gekennzeichnet, daß eine Zugstange (21) an dem Baggerlader reversibel befestigbar ist, wobei die Zugstange (21) außerdem einen Lenkerhebel (24) aufweist, dessen anderes Ende auf gleiche Weise reversibel in der Nachbarschaft des oberen Anschlußpunktes des Zylinders (16) der Stütze (50) des Arbeitsarms (13) des Baggerlöffels (12) befestigbar ist, so daß bei Betätigung des Zylinders ein Anheben der Vorderräder (2) erfolgt.
  9. Baggerlader gemäß einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß eine Zugstange (21) an dem Baggerlader reversibel befestigbar ist, wobei die Zugstange (21) außerdem eine Stange (25) aufweist, die reversibel an den Armen (10) der Laderschaufel (9) und an dem Fahrgestell (8) der Maschine befestigt ist, um die Stellung der Anhängung zu fixieren, wobei die Laderschaufel zum Anheben der Vorderräder (2) an der Zugstange (21) angreift.
EP95912312A 1994-03-16 1995-03-14 Baggerlader Expired - Lifetime EP0750702B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9403307A FR2717515B1 (fr) 1994-03-16 1994-03-16 Tractopelle.
FR9403307 1994-03-16
PCT/FR1995/000301 WO1995025202A1 (fr) 1994-03-16 1995-03-14 Tractopelle

Publications (2)

Publication Number Publication Date
EP0750702A1 EP0750702A1 (de) 1997-01-02
EP0750702B1 true EP0750702B1 (de) 2000-01-05

Family

ID=9461273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95912312A Expired - Lifetime EP0750702B1 (de) 1994-03-16 1995-03-14 Baggerlader

Country Status (5)

Country Link
EP (1) EP0750702B1 (de)
DE (1) DE69514339T2 (de)
ES (1) ES2143618T3 (de)
FR (1) FR2717515B1 (de)
WO (1) WO1995025202A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101413279B (zh) * 2008-11-29 2011-06-08 湖南山河智能机械股份有限公司 机电一体化挖掘装载机及控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807586A (en) * 1971-06-07 1974-04-30 Channel Construction Inc Material handling apparatus
NO155406C (no) * 1984-01-31 1987-03-25 Willy Bergesen Anordning ved traktormontert gravemaskin.
JPS62202130A (ja) * 1986-02-28 1987-09-05 Kubota Ltd バックホウ
DE3932555A1 (de) * 1989-09-29 1991-04-11 Schaeff Karl Gmbh & Co Baggerlader
WO1993006306A1 (en) * 1991-09-25 1993-04-01 STRUNK, Carolyn, E. Apparatus to prepare a road surface

Also Published As

Publication number Publication date
DE69514339T2 (de) 2000-08-24
FR2717515A1 (fr) 1995-09-22
WO1995025202A1 (fr) 1995-09-21
ES2143618T3 (es) 2000-05-16
FR2717515B1 (fr) 1996-04-19
EP0750702A1 (de) 1997-01-02
DE69514339D1 (de) 2000-02-10

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