EP0943739A2 - Excavator, in particular mini-excavator - Google Patents

Excavator, in particular mini-excavator Download PDF

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Publication number
EP0943739A2
EP0943739A2 EP99104263A EP99104263A EP0943739A2 EP 0943739 A2 EP0943739 A2 EP 0943739A2 EP 99104263 A EP99104263 A EP 99104263A EP 99104263 A EP99104263 A EP 99104263A EP 0943739 A2 EP0943739 A2 EP 0943739A2
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EP
European Patent Office
Prior art keywords
excavator
driver
tank
liquid
superstructure
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
EP99104263A
Other languages
German (de)
French (fr)
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EP0943739A3 (en
EP0943739B1 (en
Inventor
Hans Schaeff
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.)
Schaeff Terex GmbH and Co KG
Original Assignee
Karl Schaeff GmbH and Co Maschinenfabrik
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Filing date
Publication date
Application filed by Karl Schaeff GmbH and Co Maschinenfabrik filed Critical Karl Schaeff GmbH and Co Maschinenfabrik
Publication of EP0943739A2 publication Critical patent/EP0943739A2/en
Publication of EP0943739A3 publication Critical patent/EP0943739A3/en
Application granted granted Critical
Publication of EP0943739B1 publication Critical patent/EP0943739B1/en
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
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E02F3/325—Backhoes of the miniature type
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
    • 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
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0875—Arrangement of valve arrangements on superstructures

Definitions

  • the present invention relates to an excavator, in particular Mini excavator, according to the preamble of claim 1.
  • Mini excavators generally use rubber tracks mobile excavators understood. These devices can drive through door openings of a building shell, and are called so-called Construction robots with hydraulic hammers instead of digging holes also used in building renovation.
  • a driver's cabin should be as comfortable as possible be equipped for the user.
  • a driver's seat with sufficient suspension be trained, which, however, a lot of space in the driver's cabin needed.
  • Battery a cabin heater and for example for a dashboard is needed.
  • a cabin heater and for example for a dashboard is needed.
  • Both of the above liquid tanks are usually below the driver's seat or in the engine compartment. This has however, the consequence that, for example, when arranging the Fuel tank under the driver's seat, no space for one Cabin heating remains.
  • the arrangement of the hydraulic oil tank in the engine compartment leads to heating of the oil through the engine heat, making larger oil coolers necessary become, which in turn leads to increased space requirements leads or deteriorates engine accessibility.
  • the object of the invention is therefore with an arrangement of Liquid tanks in the engine compartment or in the driver's cabin to avoid associated disadvantages and at the same time the noise isolation an excavator, especially a mini excavator, to improve.
  • the at least one is essentially across the width of the superstructure extending liquid tank thus fulfills a double function, namely simultaneous noise reduction the separately arranged engine and Valve spaces. Furthermore, an arrangement is according to the invention a liquid tank inside the engine compartment avoided, so that, for example, in the case of a hydraulic oil tank less expensive oil cooling compared to the prior art must be provided. Finally stands by arrangement of the at least one liquid tank according to the invention an increased space in the driver's cabin to disposal.
  • Excavator is a driver's cab with a driver's seat the superstructure of the excavator essentially above of the at least one liquid tank.
  • the engine compartment, the valve compartment and the at least one liquid tank at least partially arranged within a frame of the uppercarriage.
  • the driver's cabin is expediently located below the driver's seat a heating device is arranged.
  • a heating device is arranged.
  • the arrangement according to the invention in the driver's cabin available space in an optimal way be used. It is for example due to the invention Arrangement of the liquid tanks also easily possible to have a relatively large driver's seat To provide a spring frame in the driver's cabin.
  • the Excavator a first and a second liquid tank, these liquid tanks with one positive each or complementarily negatively inclined side wall to each other issue.
  • Liquid tanks are a particularly simple installation of the tanks, for example, in the frame of the superstructure. This allows the two liquid tanks tightly or wedge-like to each other with optimal use of space create, which makes the sound insulation effect favorable is influenced.
  • the liquid tank with The tolerance requirements are also diagonally adjacent side walls reduced to the liquid tanks, whereby an inexpensive production is possible.
  • the respective inclined side walls of the Liquid tanks parallel to the longitudinal direction of the excavator.
  • the at least one liquid tank is advantageously made of metal, especially steel, or plastic. While steel tanks have a particularly high mechanical Strength are excellent, leads in particular the use of plastic tanks for further improvement noise insulation or isolation.
  • the mini excavator shown in Figure 1 has a crawler undercarriage 1 and an uppercarriage 2.
  • the uppercarriage 2 is formed with an uppercarriage frame 6 in which an engine compartment 10 (partially) and a valve chamber 11 are arranged are.
  • a driver's cab 4 is essentially in the middle the superstructure frame 6 arranged.
  • a seat console 13 In the driver's cabin 4 a seat console 13 with a driver seat 14 arranged thereon intended.
  • a heater is located below the driver's seat 14 15 arranged.
  • liquid tanks 20, 21 are two liquid tanks 20, 21 arranged. From Figure 2 it can be seen that the liquid tanks 20, 21 together over the entire Extend the width of the superstructure frame 6. they form thus a separation area between engine compartment 10 and valve compartment 11.
  • the engine compartment 10 is at the rear of a hood 17 or a rear weight 7 limited.
  • the engine compartment 10, which is usually a strong noise and Heat generation is due to a console rear wall 16 of the seat console 13 of the driver's cab 4 and the rear Walls of the tanks 20, 21 to the driver's cabin 4 and Valve chamber 11 separated.
  • the one with liquid, i.e. in the present Example fuel or hydraulic oil, filled Liquid tanks 20, 21 have a strong noise reduction Effect on, especially if made of plastic and are filled with liquid.
  • the driver's cabin 4 is the rear wall of the console 16 covered with insulating material.
  • the expansion is Liquid tanks 20, 21 forward through the dimensions of an articulated cylinder 19 and arranged next to and above it Control devices 12, in particular valves, and to the rear by the dimensions of the arranged in the engine compartment 10 Motor 8 limited.
  • the articulated cylinder 19, which is a limited one Swiveling an excavator boom 3 about an articulation axis 33 causes, together with a rotary motor 35, the Superstructure moved by a pivot bearing 5 relative to undercarriage 1, the tank limit to the valve compartment 11.
  • FIG. 2 shows, as mentioned above, that the liquid tanks 20, 21 over the full width of the superstructure frame 6 extend.
  • Figure 2 is also one with the designed as a hydraulic oil tank Liquid tank 20 connected via suction lines 34 Hydraulic pump 9 shown, which via pressure lines 32 for example the articulated cylinder 19 with hydraulic oil acted upon. Pressure lines 32 are in one Line channel 31 arranged.
  • Figure 3 shows a cross section through the liquid tanks 20, 21, which are arranged in the superstructure frame 6.
  • solid lines of the liquid tanks 20, 21 shows the assembly position, while dash-dotted lines serve to clarify the installation process.
  • the superstructure frame 6 formed with a recess on its top, through which the liquid tanks 20, 21 can be inserted.
  • the liquid tank designed as a fuel tank 21 which is approximately 30 to 40% of the cross-sectional area of the uppercarriage frame 6 occupies through the recess inserted into the superstructure frame 6 and so far to the right moved until its right side wall 41 on the inside the superstructure frame 6 rests.
  • the larger, approximately 60% of the cross-sectional area of the superstructure frame 6 engaging, designed as a hydraulic oil tank 20 second liquid tank through the recess in the superstructure frame 6 will be introduced.
  • the fuel tank 21 with a positive incline Sidewall 23 formed.
  • the hydraulic oil tank 20 has a complementary, negatively inclined Side wall 24 on. After inserting the liquid tank 21 and its shift to the right until it touches with the inside of the upper frame 6 Hydraulic oil tank 20 in the dashed lines in Figure 3 indicated way, taking advantage of the two positive or negatively inclined side walls 23, 24, by means of a pivoting movement through the recess in the superstructure frame 6 are brought into its assembly position. Means the formation of complementary trained Side walls 23, 24, it is thus possible, essentially the entire cross section of the superstructure frame 6 with Fill in the tank space.
  • the conduit 31, which is a small one Occupies part of the cross section of the superstructure frame 6, can in the event that between the lines 32 and the Hydraulic oil tank 20 a gap remains, with insulating material lined against noise and heat become.
  • the removal of the liquid tanks 20, 21 takes place in reverse order, i.e. first is hydraulic oil tank 20 by means of a pivoting movement through the recess in Removed superstructure frame 6, after which the fuel tank 21st after shifting to the left in the area of the recess is also easily removable. It should be noted that the remaining side walls of the liquid tanks 20, 21 a parallel, inclined or other appropriate Can have alignment.
  • the hydraulic oil tank 20 is usually located with its Line duct 31 on the side of the excavator, on the the hydraulic pumps 9 are also arranged.
  • Figure 3 is the hydraulic oil tank 20, for example, with an inflow flange 29 shown with a built-in oil filter 30.
  • the hydraulic tank 20 is usually replaced by a Flow guide wall 27, which the hydraulic oil in a desired direction flows to the total volume of oil to participate in the blending process.
  • the hydraulic tank is thus in an inflow space 28 and Suction chamber 25, on the suction line connections 26 to the hydraulic pumps 9 are attached, divided. Inflow space 28 and suction chamber 25 can optionally in their position be exchanged.
  • the fuel tank 21 is shown as an example in FIG Filler neck 22 shown, depending on the spatial conditions also on a side wall of the fuel tank 21 may be appropriate.

Abstract

The excavator has a top frame located on the chassis (1). The top frame has a motor chamber (10) and a valve chamber (11) which extends across the width of the fuel- or hydraulic tank (20,21). A driver cabin (4) having a driver seat is built approximately above the tank. The motor and valve chambers as well as the fluid tank are at least partly located within a frame (6). A heating unit (15) is located beneath the drivers seat in the cabin.

Description

Die vorliegende Erfindung betrifft einen Bagger, insbesondere Minibagger, nach dem Oberbegriff des Anspruchs 1.The present invention relates to an excavator, in particular Mini excavator, according to the preamble of claim 1.

Unter Minibaggern werden im allgemeinen auf Gummiraupen verfahrbare Kleinstbagger verstanden. Diese Geräte können durch Turöffnungen eines Rohbaus fahren, und werden als sogenannte Bauroboter mit Hydraulikhämmern anstelle von GrablöffeIn auch bei der Gebäudesanierung eingesetzt.Mini excavators generally use rubber tracks mobile excavators understood. These devices can drive through door openings of a building shell, and are called so-called Construction robots with hydraulic hammers instead of digging holes also used in building renovation.

Es wird bei derartigen Minibaggern angestrebt, trotz kleinster Abmessungen einen möglichst großen Kraftstoffvorrat mitzuführen. Durch diese Maßnahme können die notwendigen Nachtankintervalle groß gehalten werden. In ähnlicher Weise führt ein großer Vorrat an Hydrauliköl zu einer Verlängerung der Ölwechselintervalle. Ferner ist durch eine große verfügbare Ölmenge die Ölkühlung der Baggerhydraulik verbessert.It is aimed at such mini excavators, despite the smallest Dimensions the largest possible fuel supply to carry along. Through this measure, the necessary Refueling intervals should be kept large. In a similar way a large supply of hydraulic oil leads to an extension the oil change intervals. Furthermore, by a large available oil quantity improves the oil cooling of the excavator hydraulics.

Gleichzeitig soll jedoch eine Fahrerkabine möglichst komfortabel für den Benutzer ausgestattet werden. Beispielsweise soll ein Fahrersitz mit einer ausreichenden Federung ausgebildet sein, welche jedoch viel Platz in der Fahrerkabine benötigt. In der Fahrerkabine wird ferner Raum für eine Batterie, eine Kabinenheizung sowie beispielsweise für ein Armaturenbrett benötigt. Da die genannten Vorrichtungen insgesamt oftmals nur schwer in einer Fahrerkabine unterzubringen sind, werden bisweilen offene Fahrerstände, beispielsweise mit einem Überrollbügel, verwendet. Zur Schaffung einer vertretbaren Größe der Fahrerkabine werden die beiden oben genannten Flüssigkeitstanks üblicherweise unter dem Fahrersitz bzw. im Motorraum untergebracht. Dies hat jedoch zur Folge, daß, beispielsweise bei Anordnung des Kraftstofftankes unter dem Fahrersitz, kein Platz für eine Kabinenheizung verbleibt. Die Anordnung des Hydrauliköltanks im Motorraum führt andererseits zu einem Aufheizen des Öls durch die Motorwärme, so daß größere Ölkühler erforderlich werden, was wiederum zu erhöhtem Platzbedarf führt bzw. die Motorzugänglichkeit verschlechtert.At the same time, however, a driver's cabin should be as comfortable as possible be equipped for the user. For example should be a driver's seat with sufficient suspension be trained, which, however, a lot of space in the driver's cabin needed. There is also room for one in the driver's cabin Battery, a cabin heater and for example for a dashboard is needed. Since the devices mentioned overall, often difficult to accommodate in a driver's cabin are sometimes open driver's cabs, for example with a roll bar. To create a reasonable size of the driver's cab Both of the above liquid tanks are usually below the driver's seat or in the engine compartment. this has however, the consequence that, for example, when arranging the Fuel tank under the driver's seat, no space for one Cabin heating remains. The arrangement of the hydraulic oil tank in the engine compartment, on the other hand, leads to heating of the oil through the engine heat, making larger oil coolers necessary become, which in turn leads to increased space requirements leads or deteriorates engine accessibility.

Eine weitere, insbesondere bei Minibaggern auftretende Schwierigkeit liegt darin, daß aufgrund der strengen Dimensionierungsanforderungen eine Isolierung des Motorraums bzw. eines Ventilraums des Baggers nur unzureichend möglich ist. Dick bauende Schalldämpfungsschichten, wie sie bei größeren Geräten üblich sind, können bei Minibaggern aus den oben genannten Gründen nicht verwendet werden.Another, especially occurring with mini excavators Difficulty is that due to the stringent sizing requirements insulation of the engine compartment or a valve room of the excavator is insufficient is. Thick soundproofing layers, as in Larger devices are common, can with mini excavators for the reasons mentioned above.

Aufgabe der Erfindung ist daher die mit einer Anordnung von Flüssigkeitstanks im Motorraum bzw. in der Fahrerkabine verbundenen Nachteile zu vermeiden und gleichzeitig die Geräuschisolierung eines Baggers, insbesondere Minibaggers, zu verbessern.The object of the invention is therefore with an arrangement of Liquid tanks in the engine compartment or in the driver's cabin to avoid associated disadvantages and at the same time the noise isolation an excavator, especially a mini excavator, to improve.

Diese Aufgabe wird gelöst durch einen Bagger, insbesondere Minibagger, mit den Merkmalen des Anspruchs 1. Durch Anordnung wenigstens eines Flüssigkeitstanks zwischen dem Motorraum und dem Ventilraum des Baggers ist es in wirksamer Weise möglich, sowohl im Motorraum, als auch im Ventilraum entstehende Geräusche wirksam zu dämpfen bzw. zu isolieren. This task is solved by an excavator, in particular Mini excavator, with the features of claim 1. By arrangement at least one liquid tank between the engine compartment and the valve room of the excavator, it is more effective Possible way, both in the engine compartment and in the valve compartment to effectively dampen or isolate the resulting noise.

Der wenigstens eine sich im wesentlichen über die Breite des Oberwagens erstreckende Flüssigkeitstank erfüllt somit eine Doppelfunktion, nämlich die gleichzeitige Geräuschdämpfung der getrennt voneinander angeordneten Motor-und Ventilräume. Ferner ist erfindungsgemäß eine Anordnung eines Flüssigkeitstanks innerhalb des Motorraums vermieden, so daß beispielsweise im Falle eines Hydrauliköltankes eine gegenüber dem Stand der Technik weniger aufwendige Ölkühlung bereitgestellt werden muß. Schließlich steht durch die erfindungsgemäße Anordnung des wenigstens einen Flüssigkeitstanks ein vergrößertes Raumangebot in der Fahrerkabine zur Verfügung.The at least one is essentially across the width of the superstructure extending liquid tank thus fulfills a double function, namely simultaneous noise reduction the separately arranged engine and Valve spaces. Furthermore, an arrangement is according to the invention a liquid tank inside the engine compartment avoided, so that, for example, in the case of a hydraulic oil tank less expensive oil cooling compared to the prior art must be provided. Finally stands by arrangement of the at least one liquid tank according to the invention an increased space in the driver's cabin to disposal.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of subclaims.

Gemäß einer bevorzugten Ausführungsform des erfindungsgemäßen Baggers ist eine einen Fahrersitz aufweisende Fahrerkabine des Oberwagens des Baggers im wesentlichen oberhalb des wenigstens einen Flüssigkeitstanks ausgebildet. Durch die Positionierung der Fahrerkabine oberhalb des Flüssigkeitstanks ist in der Fahrerkabine eine besonders wirksame Geräuschisolierung gegen Motorraumgeräusche bzw. Ventilraumgeräusche gewährleistet.According to a preferred embodiment of the invention Excavator is a driver's cab with a driver's seat the superstructure of the excavator essentially above of the at least one liquid tank. By the positioning of the driver's cab above the liquid tank is a particularly effective one in the driver's cabin Noise insulation against engine compartment noises or valve compartment noises guaranteed.

Zweckmäßigerweise sind der Motorraum, der Ventilraum sowie der wenigstens eine Flüssigkeitstank wenigstens teilweise innerhalb eines Rahmens des Oberwagens angeordnet. Hierdurch ist eine besonders kompakte und stabile Anordnung zur Verfügung gestellt.The engine compartment, the valve compartment and the at least one liquid tank at least partially arranged within a frame of the uppercarriage. Hereby is a particularly compact and stable arrangement for Provided.

Zweckmäßigerweise ist unterhalb des Fahrersitzes der Fahrerkabine eine Heizungseinrichtung angeordnet. Hierdurch kann der durch die erfindungsgemäße Anordnung in der Fahrerkabine zur Verfügung stehende Raum in optimaler Weise genutzt werden. Es ist beispielsweise aufgrund der erfindungsgemäßen Anordnung der Flüssigkeitstanks auch ohne weiteres möglich, einen relativ groß bauenden Fahrersitz mit Federgestell in der Fahrerkabine vorzusehen.The driver's cabin is expediently located below the driver's seat a heating device is arranged. Hereby can by the arrangement according to the invention in the driver's cabin available space in an optimal way be used. It is for example due to the invention Arrangement of the liquid tanks also easily possible to have a relatively large driver's seat To provide a spring frame in the driver's cabin.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung, für die selbständig Schutz begehrt wird, weist der Bagger einen ersten und einen zweiten Flüssigkeitstank auf, wobei diese Flüssigkeitstanks mit jeweils einer positiv bzw. komplementär negativ geneigten Seitenwand aneinander anliegen. Durch eine derartige Ausbildung aneinander anliegender Flüssigkeitstanks ist ein besonders einfacher Einbau der Tanks beispielsweise in den Rahmen des Oberwagens möglich. Die beiden Flüssigkeitstanks lassen sich hierdurch unter optimaler Platzausnutzung fest bzw. keilartig aneinander anlegen, wodurch die Geräuschisolierwirkung günstig beeinflußt ist. Durch Ausbildung des Flüssigkeitstanks mit schräg aneinanderliegenden Seitenwänden sind ferner die Toleranzanforderungen an die Flüssigkeitstanks vermindert, wodurch eine preiswerte Fertigung möglich ist.According to a further embodiment of the present invention, for whom protection is sought independently, the Excavator a first and a second liquid tank, these liquid tanks with one positive each or complementarily negatively inclined side wall to each other issue. By such a training abutting one another Liquid tanks are a particularly simple installation of the tanks, for example, in the frame of the superstructure. This allows the two liquid tanks tightly or wedge-like to each other with optimal use of space create, which makes the sound insulation effect favorable is influenced. By designing the liquid tank with The tolerance requirements are also diagonally adjacent side walls reduced to the liquid tanks, whereby an inexpensive production is possible.

Nach einer bevorzugten Ausgestaltung der vorliegenden Erfindung verlaufen die jeweils geneigten Seitenwände der Flüssigkeitstanks parallel zur Längsrichtung des Baggers.According to a preferred embodiment of the present invention the respective inclined side walls of the Liquid tanks parallel to the longitudinal direction of the excavator.

Vorteilhafterweise ist der wenigstens eine Flüssigkeitstank aus Metall, insbesondere Stahl, oder aus Kunststoff hergestellt. Während Stahltanks durch eine besonders hohe mechanische Festigkeit ausgezeichnet sind, führt insbesondere die Verwendung von Kunststofftanks zu einer weiteren Verbesserung der Geräuschdämmung bzw. -isolierung. The at least one liquid tank is advantageously made of metal, especially steel, or plastic. While steel tanks have a particularly high mechanical Strength are excellent, leads in particular the use of plastic tanks for further improvement noise insulation or isolation.

Eine bevorzugte Ausführungsform der Erfindung wird nun anhand der beigefügten Zeichnung im einzelnen beschrieben. In dieser zeigt

Figur 1
eine teilweise geschnittene schematische Seitenansicht einer bevorzugten Ausführungsform eines erfindungsgemäßen Minibaggers,
Figur 2
eine Draufsicht des Minibaggers der Figur 1 mit teilweise entfernter Kabine, sowie ohne Motorhaube und Sitzkonsole, und
Figur 3
eine Querschnittsansicht der Flüssigkeitstankanordnung entlang der Linie I-I in Figur 2, wobei Ein- und Ausbauschritte der Flüssigkeitstanks strichpunktiert angedeutet sind.
A preferred embodiment of the invention will now be described in detail with reference to the accompanying drawing. In this shows
Figure 1
2 shows a partially sectioned schematic side view of a preferred embodiment of a mini excavator according to the invention,
Figure 2
a plan view of the mini excavator of Figure 1 with a partially removed cabin, as well as without bonnet and seat console, and
Figure 3
a cross-sectional view of the liquid tank arrangement along the line II in Figure 2, wherein installation and removal steps of the liquid tanks are indicated by dash-dotted lines.

Der in Figur 1 dargestellte Minibagger weist einen Raupenunterwagen 1 und einen Oberwagen 2 auf. Der Oberwagen 2 ist mit einem Oberwagenrahmen 6 ausgebildet, in dem ein Motorraum 10 (teilweise) und ein Ventilraum 11 angeordnet sind. Eine Fahrerkabine 4 ist im wesentlichen mittig auf dem Oberwagenrahmen 6 angeordnet. In der Fahrerkabine 4 ist eine Sitzkonsole 13 mit darauf angeordnetem Fahrersitz 14 vorgesehen. Unterhalb des Fahrersitzes 14 ist eine Heizeinrichtung 15 angeordnet.The mini excavator shown in Figure 1 has a crawler undercarriage 1 and an uppercarriage 2. The uppercarriage 2 is formed with an uppercarriage frame 6 in which an engine compartment 10 (partially) and a valve chamber 11 are arranged are. A driver's cab 4 is essentially in the middle the superstructure frame 6 arranged. In the driver's cabin 4 a seat console 13 with a driver seat 14 arranged thereon intended. A heater is located below the driver's seat 14 15 arranged.

Zwischen Motorraum 10 und Ventilraum 11 sind zwei Flüssigkeitstanks 20, 21 angeordnet. Aus Figur 2 ist ersichtlich, daß die Flüssigkeitstanks 20, 21 sich zusammen über die gesamte Breite des Oberwagenrahmens 6 erstrecken. Sie bilden somit einen Trennbereich zwischen Motorraum 10 und Ventilraum 11. Der Motorraum 10 ist rückseitig von einer Motorhaube 17 bzw. einem Heckgewicht 7 begrenzt.Between the engine compartment 10 and valve compartment 11 are two liquid tanks 20, 21 arranged. From Figure 2 it can be seen that the liquid tanks 20, 21 together over the entire Extend the width of the superstructure frame 6. they form thus a separation area between engine compartment 10 and valve compartment 11. The engine compartment 10 is at the rear of a hood 17 or a rear weight 7 limited.

Der Motorraum 10, der üblicherweise eine starke Geräusch-und Wärmeentwicklung aufweist, ist durch eine Konsolenrückwand 16 der Sitzkonsole 13 der Fahrerkabine 4 und die rückseitigen Wände der Tanks 20, 21 zur Fahrerkabine 4 und zum Ventilraum 11 abgetrennt. Die mit Flüssigkeit, d.h. im vorliegenden Beispiel Treibstoff bzw. Hydrauliköl, gefüllten Flüssigkeitstanks 20, 21 weisen eine stark geräuschdämmende Wirkung auf, insbesondere wenn sie aus Kunststoff hergestellt und mit Flüssigkeit gefüllt sind. Zur weiteren Geräuschisolierung der Fahrerkabine 4 ist die Konsolenrückwand 16 mit Isoliermaterial bedeckt.The engine compartment 10, which is usually a strong noise and Heat generation is due to a console rear wall 16 of the seat console 13 of the driver's cab 4 and the rear Walls of the tanks 20, 21 to the driver's cabin 4 and Valve chamber 11 separated. The one with liquid, i.e. in the present Example fuel or hydraulic oil, filled Liquid tanks 20, 21 have a strong noise reduction Effect on, especially if made of plastic and are filled with liquid. For further noise isolation the driver's cabin 4 is the rear wall of the console 16 covered with insulating material.

Durch die Motorlärm absorbierende Anordnung der Flüssigkeitstanks 20, 21 kann auch eine Geräuschentwicklung im Ventilraum 11 wirksam gedämpft bzw. isoliert werden. Hierdurch ist es möglich, eine für Wartung und Montage erforderliche Bodenplatte 18 der Fahrerkabine 4 mit relativ wenig Isoliermaterial zur Kabine hin zu isolieren. Die Bodenplatte 18 kann hierdurch wesentlich dünner ausgebildet werden, wodurch der in der Fahrerkabine 14 zur Verfügung stehende Raum größer ist.Due to the engine noise absorbing arrangement of the liquid tanks 20, 21 can also generate noise in the Valve chamber 11 can be effectively damped or isolated. Hereby it is possible to have one necessary for maintenance and assembly Base plate 18 of the driver's cab 4 with relatively little Isolate insulation material to the cabin. The bottom plate 18 can thereby be made substantially thinner, whereby the one available in the driver's cab 14 Room is larger.

In Längsrichtung des Minibaggers ist die Ausdehnung der Flüssigkeitstanks 20, 21 nach vorn durch die Abmessungen eines Knickzylinders 19 und neben und über diesem angeordneten Steuergeräten 12, insbesondere Ventile, und nach hinten durch die Abmessungen des im Motorraum 10 angeordneten Motors 8 begrenzt. Der Knickzylinder 19, der eine begrenzte Verschwenkung eines Baggerauslegers 3 um eine Knickachse 33 bewirkt, bildet zusammen mit einem Drehmotor 35, der den Oberwagen um ein Drehlager 5 relativ zum Unterwagen 1 bewegt, die Tankbegrenzung zum Ventilraum 11.In the longitudinal direction of the mini excavator, the expansion is Liquid tanks 20, 21 forward through the dimensions of an articulated cylinder 19 and arranged next to and above it Control devices 12, in particular valves, and to the rear by the dimensions of the arranged in the engine compartment 10 Motor 8 limited. The articulated cylinder 19, which is a limited one Swiveling an excavator boom 3 about an articulation axis 33 causes, together with a rotary motor 35, the Superstructure moved by a pivot bearing 5 relative to undercarriage 1, the tank limit to the valve compartment 11.

Figur 2 zeigt, wie oben erwähnt, daß die Flüssigkeitstanks 20, 21 sich über die volle Breite des Oberwagenrahmens 6 erstrecken. Hierbei liegt der Flüssigkeitstank 20 mit einer Seitenwand 40, und der Flüssigkeitstank 21 mit einer Seitenwand 41 an der Innenfläche des Oberwagenrahmens 6 an, wie in Figur 3 dargestellt ist.Figure 2 shows, as mentioned above, that the liquid tanks 20, 21 over the full width of the superstructure frame 6 extend. Here, the liquid tank 20 with a Side wall 40, and the liquid tank 21 with a side wall 41 on the inner surface of the superstructure frame 6, as shown in Figure 3.

In Figur 2 ist ferner eine mit dem als Hydrauliköltank ausgebildeten Flüssigkeitstank 20 über Saugleitungen 34 verbundene Hydraulikpumpe 9 dargestellt, welche über Druckleitungen 32 beispielsweise den Knickzylinder 19 mit Hydrauliköl beaufschlagt. Druckleitungen 32 sind hierbei in einem Leitungskanal 31 angeordnet.In Figure 2 is also one with the designed as a hydraulic oil tank Liquid tank 20 connected via suction lines 34 Hydraulic pump 9 shown, which via pressure lines 32 for example the articulated cylinder 19 with hydraulic oil acted upon. Pressure lines 32 are in one Line channel 31 arranged.

Figur 3 zeigt einen Querschnitt durch die Flüssigkeitstanks 20, 21, welche im Oberwagenrahmen 6 angeordnet sind. Hierbei stellen durchgezogene Linien der Flüssigkeitstanks 20, 21 die Montagestellung dar, während strichpunktierte Linien zur Verdeutlichung des Einbauvorgangs dienen.Figure 3 shows a cross section through the liquid tanks 20, 21, which are arranged in the superstructure frame 6. Here represent solid lines of the liquid tanks 20, 21 shows the assembly position, while dash-dotted lines serve to clarify the installation process.

Wie aus der Figur zu erkennen, ist der Oberwagenrahmen 6 auf seiner Oberseite mit einer Ausnehmung ausgebildet, durch welche die Flüssigkeitstanks 20, 21 einführbar sind. Zunächst wird der als Kraftstofftank 21 ausgebildete Flüssigkeitstank, der ungefähr 30 bis 40% der Querschnittsfläche des Oberwagenrahmens 6 einnimmt, durch die Ausnehmung in den Oberwagenrahmen 6 eingeführt und so weit nach rechts verschoben, bis seine rechte Seitenwand 41 an der Innenseite des Oberwagenrahmens 6 anliegt. Anschließend kann der größere, ungefähr 60% der Querschnittsfläche des Oberwagenrahmens 6 einnehmende, als Hydrauliköltank 20 ausgebildete zweite Flüssigkeitstank durch die Ausnehmung im Oberwagenrahmen 6 eingeführt werden. Zur Ermöglichung einer optimalen Raumausnutzung des gesamten Querschnitts des Oberwagenrahmens 6 ist der Kraftstofftank 21 mit einer positiv geneigten Seitenwand 23 ausgebildet. Der Hydrauliköltank 20 weist eine komplementär hierzu ausgebildete, negativ geneigte Seitenwand 24 auf. Nach Einbringen des Flüssigkeitstanks 21 und seiner Verschiebung nach rechts bis zur Berührung mit der Innenseite des Oberwagenrahmens 6 kann der Hydrauliköltank 20 in der durch strichpunktierte Linien in Figur 3 angedeuteten Weise, unter Ausnutzung der beiden positiv bzw. negativ geneigten Seitenwände 23, 24, mittels einer Einschwenkbewegung durch die Ausnehmung im Oberwagenrahmen 6 in seine Montagestellung gebracht werden. Mittels der Ausbildung der komplementär zueinander ausgebildeten Seitenwände 23, 24 ist es somit möglich, im wesentlichen den gesamten Querschnitt des Oberwagenrahmens 6 mit Tankraum auszufüllen. Der Leitungskanal 31, der einen kleinen Teil des Querschnitts des Oberwagenrahmens 6 einnimmt, kann für den Fall, daß zwischen den Leitungen 32 und dem Hydrauliköltank 20 ein Zwischenraum verbleibt, mit Isoliermaterial gegen Geräusch- und Wärmeentwicklung ausgekleidet werden. Der Ausbau der Flüssigkeitstanks 20, 21 erfolgt in umgekehrter Reihenfolge, d.h. zunächst wird Hydrauliköltank 20 mittels einer Ausschwenkbewegung durch die Ausnehmung im Oberwagenrahmen 6 entfernt, wonach der Kraftstofftank 21 nach Verschiebung nach links in den Bereich der Ausnehmung ebenfalls in einfacher Weise entfernbar ist. Es sei angemerkt, daß die übrigen Seitenwände der Flüssigkeitstanks 20, 21 eine parallele, geneigte oder eine andere zweckmäßige Ausrichtung aufweisen können. As can be seen from the figure, the superstructure frame 6 formed with a recess on its top, through which the liquid tanks 20, 21 can be inserted. First, the liquid tank designed as a fuel tank 21, which is approximately 30 to 40% of the cross-sectional area of the uppercarriage frame 6 occupies through the recess inserted into the superstructure frame 6 and so far to the right moved until its right side wall 41 on the inside the superstructure frame 6 rests. Then the larger, approximately 60% of the cross-sectional area of the superstructure frame 6 engaging, designed as a hydraulic oil tank 20 second liquid tank through the recess in the superstructure frame 6 will be introduced. To enable optimal Utilization of the entire cross-section of the superstructure frame 6 is the fuel tank 21 with a positive incline Sidewall 23 formed. The hydraulic oil tank 20 has a complementary, negatively inclined Side wall 24 on. After inserting the liquid tank 21 and its shift to the right until it touches with the inside of the upper frame 6 Hydraulic oil tank 20 in the dashed lines in Figure 3 indicated way, taking advantage of the two positive or negatively inclined side walls 23, 24, by means of a pivoting movement through the recess in the superstructure frame 6 are brought into its assembly position. Means the formation of complementary trained Side walls 23, 24, it is thus possible, essentially the entire cross section of the superstructure frame 6 with Fill in the tank space. The conduit 31, which is a small one Occupies part of the cross section of the superstructure frame 6, can in the event that between the lines 32 and the Hydraulic oil tank 20 a gap remains, with insulating material lined against noise and heat become. The removal of the liquid tanks 20, 21 takes place in reverse order, i.e. first is hydraulic oil tank 20 by means of a pivoting movement through the recess in Removed superstructure frame 6, after which the fuel tank 21st after shifting to the left in the area of the recess is also easily removable. It should be noted that the remaining side walls of the liquid tanks 20, 21 a parallel, inclined or other appropriate Can have alignment.

Üblicherweise befindet sich der Hydrauliköltank 20 mit seinem Leitungskanal 31 auf der Seite des Baggers, auf der auch die Hydraulikpumpen 9 angeordnet sind. In Figur 3 ist der Hydrauliköltank 20 beispielhaft mit einem Einströmflansch 29 mit einem Einbauölfilter 30 dargestellt. Aus Raumgründen kann es erforderlich sein, einen Leitungsfilter zu verwenden, so daß das Hydrauliköl an einer anderen Stelle in einen Einströmraum 28 des Hydrauliktanks 20 einströmen kann. Üblicherweise wird der Hydrauliktank 20 durch eine Strömungsleitwand 27 verstärkt, die das Hydrauliköl in eine gewünschte Richtung strömen läßt, um das gesamte Ölvolumen am Vermischungsprozeß teilnehmen zu lassen. Der Hydrauliktank ist somit in einen Einströmraum 28 und einen Saugraum 25, an dem Saugleitungsanschlüsse 26 zu den Hydraulikpumpen 9 angebracht sind, unterteilt. Einströmraum 28 und Saugraum 25 können gegebenenfalls in ihrer Position vertauscht werden.The hydraulic oil tank 20 is usually located with its Line duct 31 on the side of the excavator, on the the hydraulic pumps 9 are also arranged. In Figure 3 is the hydraulic oil tank 20, for example, with an inflow flange 29 shown with a built-in oil filter 30. Out For reasons of space it may be necessary to use a line filter to use so that the hydraulic oil in another place flow into an inflow space 28 of the hydraulic tank 20 can. The hydraulic tank 20 is usually replaced by a Flow guide wall 27, which the hydraulic oil in a desired direction flows to the total volume of oil to participate in the blending process. The hydraulic tank is thus in an inflow space 28 and Suction chamber 25, on the suction line connections 26 to the hydraulic pumps 9 are attached, divided. Inflow space 28 and suction chamber 25 can optionally in their position be exchanged.

Der Kraftstofftank 21 ist in Figur 3 beispielhaft mit einem Einfüllstutzen 22 dargestellt, der je nach räumlichen Verhältnissen auch an einer Seitenwand des Kraftstofftanks 21 angebracht sein kann.The fuel tank 21 is shown as an example in FIG Filler neck 22 shown, depending on the spatial conditions also on a side wall of the fuel tank 21 may be appropriate.

Claims (7)

Bagger, insbesondere Minibagger, mit einem Unterwagen (1) und einem auf dem Unterwagen (1) drehbar gelagerten Oberwagen (2), wobei in dem Oberwagen (2) ein Motorraum (10) und ein Ventilraum (11) des Baggers ausgebildet sind, dadurch gekennzeichnet, daß zwischen Motorraum (10) und Ventilraum (11) wenigstens ein sich im wesentlichen über die Breite des Oberwagens (2) erstreckender Flüssigkeitstank (20, 21), insbesondere ein Kraftstofftank und/oder ein Hydrauliköltank, angeordnet ist.Excavators, especially mini excavators, with an undercarriage (1) and one rotatably mounted on the undercarriage (1) Superstructure (2), with an engine compartment in the superstructure (2) (10) and a valve chamber (11) of the excavator are formed, characterized in that between the engine compartment (10) and Valve space (11) at least one over substantially the width of the superstructure (2) extending liquid tank (20, 21), in particular a fuel tank and / or a hydraulic oil tank is arranged. Bagger nach Anspruch 1, dadurch gekennzeichnet, daß eine einen Fahrersitz aufweisende Fahrerkabine (4) des Oberwagens (2) im wesentlichen oberhalb des wenigstens einen Flüssigkeitstanks (20, 21) ausgebildet ist.Excavator according to claim 1, characterized in that a driver's cab (4) having a driver's seat Upper carriage (2) essentially above the at least one Liquid tanks (20, 21) is formed. Bagger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Motorraum (10), der Ventilraum (11) sowie der wenigstens eine Flüssigkeitstank (20, 21) wenigstens teilweise innerhalb eines Rahmens (6) des Oberwagens (2) angeordnet sind.Excavator according to claim 1 or 2, characterized in that the engine compartment (10), the valve compartment (11) and at least a liquid tank (20, 21) at least partially arranged within a frame (6) of the superstructure (2) are. Bagger nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß unterhalb eines Fahrersitzes (14) der Fahrerkabine (4) eine Heizungseinrichtung (15) angeordnet ist. Excavator according to claim 2 or 3, characterized in that below a driver's seat (14) of the driver's cabin (4) a heating device (15) is arranged. Bagger, insbesondere nach einem der vorstehenden Ansprüche, mit einem ersten Flüssigkeitstank (20), insbesondere einem Hydrauliköltank, und einem zweiten Flüssigkeitstank (21), insbesondere einem Kraftstofftank, dadurch gekennzeichnet, daß die Flüssigkeitstanks (20, 21) mit jeweils einer positiv bzw. komplementär negativ geneigten Seitenwand (24, 23) aneinander anliegen.Excavator, in particular according to one of the preceding claims, with a first liquid tank (20), in particular a hydraulic oil tank, and a second liquid tank (21), in particular a fuel tank, characterized in that that the liquid tanks (20, 21) with each a positive or complementary negative incline Side wall (24, 23) lie against each other. Bagger nach Anspruch 5, dadurch gekennzeichnet, daß die jeweils geneigten Seitenwände (23, 24) parallel zu der Längsrichtung des Baggers verlaufen.Excavator according to claim 5, characterized in that the respective inclined side walls (23, 24) parallel to the The longitudinal direction of the excavator. Bagger nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der wenigstens eine Flüssigkeitstank (20, 21) aus Metall, insbesondere Stahl, oder Kunststoff hergestellt ist.Excavator according to one of the preceding claims, characterized characterized in that the at least one liquid tank (20, 21) made of metal, in particular steel, or plastic is made.
EP99104263A 1998-03-18 1999-03-03 Excavator, in particular mini-excavator Expired - Lifetime EP0943739B1 (en)

Applications Claiming Priority (2)

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DE29804856U DE29804856U1 (en) 1998-03-18 1998-03-18 Excavators, in particular mini excavators
DE29804856U 1998-03-18

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EP0943739A2 true EP0943739A2 (en) 1999-09-22
EP0943739A3 EP0943739A3 (en) 2000-01-05
EP0943739B1 EP0943739B1 (en) 2002-09-04

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US (1) US6170180B1 (en)
EP (1) EP0943739B1 (en)
JP (1) JP3386403B2 (en)
AT (1) ATE223542T1 (en)
DE (2) DE29804856U1 (en)

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CH707640A1 (en) * 2013-02-18 2014-08-29 Menzi Muck Ag Hydraulic excavator has undercarriage, superstructure with driving cab and cantilever arm mechanism mounted at superstructure, where cantilever arm mechanism contains cantilever arm and shaft connected with cantilever arm

Also Published As

Publication number Publication date
EP0943739A3 (en) 2000-01-05
EP0943739B1 (en) 2002-09-04
DE29804856U1 (en) 1998-07-09
DE59902517D1 (en) 2002-10-10
US6170180B1 (en) 2001-01-09
JPH11310934A (en) 1999-11-09
JP3386403B2 (en) 2003-03-17
ATE223542T1 (en) 2002-09-15

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