EP2888422B1 - Mobile concrete pump - Google Patents

Mobile concrete pump Download PDF

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Publication number
EP2888422B1
EP2888422B1 EP13734802.5A EP13734802A EP2888422B1 EP 2888422 B1 EP2888422 B1 EP 2888422B1 EP 13734802 A EP13734802 A EP 13734802A EP 2888422 B1 EP2888422 B1 EP 2888422B1
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EP
European Patent Office
Prior art keywords
concrete pump
shell
supporting leg
mast
carrying structure
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.)
Not-in-force
Application number
EP13734802.5A
Other languages
German (de)
French (fr)
Other versions
EP2888422A1 (en
Inventor
Dietmar FÜGEL
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.)
Putzmeister Engineering GmbH
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Putzmeister Engineering GmbH
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Publication date
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Publication of EP2888422A1 publication Critical patent/EP2888422A1/en
Application granted granted Critical
Publication of EP2888422B1 publication Critical patent/EP2888422B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/6855—Vehicle
    • Y10T137/6881—Automotive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/8807—Articulated or swinging flow conduit

Definitions

  • the invention relates to a mobile concrete pump with a directly or indirectly via a body frame mounted on a chassis of a truck chassis support structure which receives a support device and a distribution boom forming functional units, wherein the distribution boom is rotatably mounted on a mast block, which inserted one into the support structure , as a pivot bearing for the distribution boom equipped boiler comprises and wherein the supporting device comprises two integrated in the support structure, diagonally forward open, intersecting Stauerbeinhimsten and each one in the support leg boxes telescopically arranged support leg.
  • the support structure is mounted on a body frame and placed together with this on the chassis of a truck chassis.
  • the support structure forms with its mast block and the support leg boxes the interface between the distribution boom and the support legs.
  • the load moment caused by the distribution boom is distributed over the girder and the support leg boxes on the support legs and introduced into the ground.
  • Particularly popular with mobile concrete pumps is a support structure that is equipped with two telescopic support legs at the front and two swing-out support legs at the rear.
  • the support leg boxes of the front support legs form an "X" in this construction, so they cross each other diagonally in the support structure.
  • the point of intersection of the two support leg boxes would be ideal for introducing the load moment of the distributor mast into the support legs by the shortest route, ie if the boiler was mounted at the crossing point as the carrier of the distributor boom.
  • the boiler is therefore usually located in the direction of travel in front of the support leg boxes. The deflection of the power flow from the eccentric boiler in the bearing vertical side walls of the support leg boxes but only possible with a considerable design effort. Accordingly, this construction forces the use of heavy and structurally complex mast stands.
  • EP1847505 A2 discloses a mobile concrete pump according to the preamble of claim 1.
  • the present invention seeks to make the boiler of the girder so and position it in the support structure that even with a lightweight design optimal load transfer from the distribution boom to the support legs is possible.
  • the support structure has an upwardly open, parallel to the axis of rotation of the distribution boom aligned polygonal opening and that the boiler of the mast block has adapted to the polygonal opening polygonal outline and is inserted into the polygonal opening of the support structure.
  • This makes it possible that the boiler is aligned with two of its side surfaces parallel to a side wall of each one of the support leg boxes. If the boiler is also integrated with two of its side surfaces in the respective side walls of the support leg boxes in alignment, with a compact design, an optimal force transmission between mast support and support leg boxes is achieved.
  • a preferred embodiment of the invention provides that the boiler is flanged to the support structure in the region of the polygonal opening and the support leg boxes and / or welded into this.
  • the boiler forms a column of multi-folded sheet metal. This will be So two boiler side surfaces and two side walls of the support leg boxes united into one component. The power flow does not occur so directly over this common structure, as if the boiler sat in the crossing point.
  • the construction according to the invention is, however, largely free of deflection.
  • a further advantageous embodiment of the invention provides that the boiler in the region of its upper edge has a standing in operative connection with the distribution boom rotary drive.
  • the diagonally extending support leg boxes are expediently designed in such a way that they have telescopic tubes arranged at different heights within the support structure for the support legs and through an intermediate floor of these separate free spaces.
  • the boiler of the girder is in the central area on the intermediate floor, wherein in the intermediate floor, a central opening for the passage and / or for the rotary feedthrough of conveying, control and power lines is arranged.
  • the polygonal opening may have on its side facing away from the support leg boxes an edge opening through which the boiler partially reaches through to the front side.
  • the intermediate bottom bearing the vessel expediently has a reinforcement zone formed by bending deformation and / or by structural elements in the region of the central opening.
  • the truck chassis 10 carries a concrete pump 20 which is connected via a body frame 22 to the chassis 12.
  • the concrete pump assembly essentially comprises a core pump 24 with two hydraulic drive cylinders 26, two in pairs connected to the drive cylinders 26 via a water box 28 feed cylinders 30 and a rigidly arranged at the other end of the feed cylinder 30 material feed container 32.
  • the structure comprises a pressure feed line 34, which a trained as a crease mast distributor boom 36 is guided and at the end of the last mast arm has a subsidized concrete pouring for concreting, not shown end hose.
  • the distribution boom 36 is rotatably mounted about a vertical axis of rotation 48 on a mast bracket 44 rigidly connected to a support structure 46 in the vicinity of the front end.
  • the mast bracket 44 has in the embodiment shown a built-in support structure 46, as a pivot bearing for the distribution boom 36 equipped boiler 52.
  • a support device 38 is provided with extendable support legs 40, 66.
  • the support device comprises two support leg boxes 54, 56 integrated in the support structure 46, which in turn have two telescoping tubes open diagonally forward, intersecting at different heights for receiving the front support legs 40.
  • At the rear end of the support structure 46 are also on the joints 64 two laterally swinging rear Support legs 66 articulated.
  • the invention consists in that the support structure 46 has an upwardly open, parallel to the axis of rotation 48 of the distribution boom 36 aligned polygonal opening 50 that the boiler 52 of the mast block 44 has adapted to the polygonal opening 50 polygonal outline and from above into the polygonal opening 50 of Carrying structure 46 is inserted, and that the boiler 52 is aligned with two of its an angle with each other enclosing side surfaces 68 parallel to a side wall 70 of each of the support leg boxes 54, 56. As in particular from the Fig. 4a to c can be seen, the boiler 52 forms a column of multi-folded sheet metal.
  • the boiler 52 is welded in the support structure 46 in the region of the polygonal opening 50 and the support leg boxes 54, 56.
  • the diagonally extending support leg boxes 54, 56 are formed in such a two-story, that their arranged at different heights within the support structure 46 telescopic tubes bound by an intermediate bottom 72 of these separate spaces 74.
  • the intermediate bottom 72 is provided there with a central opening 76 for the passage and / or for the rotary feedthrough of conveying, control and power lines, not shown.
  • the intermediate floor 72 has a reinforcement zone 80 formed by bending deformation and by structural elements 78, which receives the vertical load of the distributor boom 36 and deflects it via the support structure 46 onto the support legs 40, 66.
  • the polygonal opening 50 has an edge opening 82 on its front side remote from the support leg boxes 54, 56, through which the boiler 52 partially reaches.
  • the boiler 52 has a rotary drive which is in operative connection with the distributor boom and whose bearing 84 is in Fig. 4a to c you can see.
  • the invention relates to a mobile concrete pump with a directly or indirectly via a body frame 22 on a chassis 12 of a truck chassis 10 patch support structure 46 which receives a support device and a distribution boom 36 forming functional units.
  • the distribution boom 36 is rotatably mounted on a mast block 44.
  • the mast bracket 44 comprises a inserted into the support structure 46, equipped as a pivot bearing for the distribution boom 36 boiler 52, while the support two integrated in the support structure 46, diagonally forward open, intersecting Stauerbeinkalsten 54, 56 and one telescopically arranged in the support leg boxes Support leg 40 has.
  • the invention consists in that the support structure 46 has an upwardly open, parallel to the axis of rotation 48 of the distribution boom 36 aligned polygonal opening 50, while the boiler 52 of the mast block 44 has adapted to the polygonal opening 50 polygonal outline and from above into the polygonal opening 50 of Support structure 46 is inserted.
  • a particularly good flow of force between the distribution boom 36 and the support legs 40 is achieved in that the boiler 52 is aligned with two of its an angle enclosing side surfaces 68 parallel to a side wall 70 of each of the support leg boxes 54, 56.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Description

Die Erfindung betrifft eine fahrbare Betonpumpe mit einer unmittelbar oder mittelbar über einen Aufbaurahmen auf ein Fahrgestell eines LKW-Chassis aufgesetzten Tragstruktur, welche eine Abstützvorrichtung und einen Verteilermast bildende Funktionseinheiten aufnimmt, wobei der Verteilermast an einem Mastbock drehbar gelagert ist, der einen in die Tragstruktur eingefügten, als Drehlager für den Verteilermast ausgerüsteten Kessel umfasst und wobei die Abstützvorrichtung zwei in der Tragstruktur integrierte, diagonal nach vorne offene, einander kreuzende Stützbeinkästen sowie je ein in den Stützbeinkästen teleskopierbar angeordnetes Stützbein umfasst.The invention relates to a mobile concrete pump with a directly or indirectly via a body frame mounted on a chassis of a truck chassis support structure which receives a support device and a distribution boom forming functional units, wherein the distribution boom is rotatably mounted on a mast block, which inserted one into the support structure , as a pivot bearing for the distribution boom equipped boiler comprises and wherein the supporting device comprises two integrated in the support structure, diagonally forward open, intersecting Stützbeinkästen and each one in the support leg boxes telescopically arranged support leg.

Bei fahrbaren Betonpumpen dieser Art ( DE-102 46 447 A1 ) wird die Tragstruktur auf einen Aufbaurahmen montiert und zusammen mit diesem auf das Fahrgestell eines LKW-Chassis aufgesetzt. Die Tragstruktur bildet mit ihrem Mastbock und den Stützbeinkästen die Schnittstelle zwischen dem Verteilermast und den Stützbeinen. Das vom Verteilermast verursachte Lastmoment wird dabei über den Mastbock und die Stützbeinkästen auf die Stützbeine verteilt und in den Untergrund eingeleitet. Bei fahrbaren Betonpumpen besonders beliebt ist eine Tragstruktur, die vorne mit zwei teleskopierbaren und hinten mit zwei ausschwenkbaren Stützbeinen ausgestattet ist. Die Stützbeinkästen der vorderen Stützbeine bilden bei dieser Konstruktion ein "X", sie kreuzen sich also in der Tragstruktur diagonal.For mobile concrete pumps of this type ( DE-102 46 447 A1 ), the support structure is mounted on a body frame and placed together with this on the chassis of a truck chassis. The support structure forms with its mast block and the support leg boxes the interface between the distribution boom and the support legs. The load moment caused by the distribution boom is distributed over the girder and the support leg boxes on the support legs and introduced into the ground. Particularly popular with mobile concrete pumps is a support structure that is equipped with two telescopic support legs at the front and two swing-out support legs at the rear. The support leg boxes of the front support legs form an "X" in this construction, so they cross each other diagonally in the support structure.

Aus Sicht der Krafteinleitung wäre der Kreuzungspunkt der beiden Stützbeinkästen ideal, um das Lastmoment des Verteilermasts auf kürzestem Wege in die Stützbeine einzuleiten, wenn also der Kessel als Träger des Verteilermasts am Kreuzungspunkt angebracht wäre. Aus technischen Gründen ist es bei fahrbaren Betonpumpen aber meist unmöglich, den Kessel im Kreuzungspunkt anzubringen, weil er in diesem Falle wegen der Schwerpunktslage, der Achslasten und dem für den Verteilermast notwendigen Bauraum zu weit hinten auf dem Fahrgestell positioniert wäre. Der Kessel sitzt daher üblicherweise in Fahrtrichtung vor den Stützbeinkästen. Die Umlenkung des Kraftflusses vom exzentrischen Kessel in die tragenden vertikalen Seitenwände der Stützbeinkästen ist aber nur mit einem erheblichen konstruktiven Aufwand möglich. Dementsprechend zwingt diese Konstruktion zur Verwendung von schweren und konstruktiv aufwendigen Mastböcken.From the point of view of the introduction of force, the point of intersection of the two support leg boxes would be ideal for introducing the load moment of the distributor mast into the support legs by the shortest route, ie if the boiler was mounted at the crossing point as the carrier of the distributor boom. For technical reasons, it is usually impossible for mobile concrete pumps to install the boiler at the crossing point, because in this case, because of the center of gravity position, the axle loads and the space required for the distribution boom would be positioned too far back on the chassis. The boiler is therefore usually located in the direction of travel in front of the support leg boxes. The deflection of the power flow from the eccentric boiler in the bearing vertical side walls of the support leg boxes but only possible with a considerable design effort. Accordingly, this construction forces the use of heavy and structurally complex mast stands.

EP1847505 A2 offenbart eine fahrbare Betonpumpe gemäß dem Oberbegriff des Anspruchs 1. EP1847505 A2 discloses a mobile concrete pump according to the preamble of claim 1.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, den Kessel des Mastbocks so zu gestalten und in der Tragstruktur zu positionieren, dass auch bei leichter Bauweise eine optimale Lastableitung vom Verteilermast zu den Stützbeinen möglich ist.Proceeding from this, the present invention seeks to make the boiler of the girder so and position it in the support structure that even with a lightweight design optimal load transfer from the distribution boom to the support legs is possible.

Zur Lösung dieser Aufgabe wird die im Patentanspruch 1 angegebene Merkmalskombination vorgeschlagen. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen. Der erfindungsgemäßen Lösung liegt vor allem der Gedanke zugrunde, dass die Tragstruktur eine nach oben offene, parallel zur Drehachse des Verteilermasts ausgerichtete Mehrkantöffnung aufweist und dass der Kessel des Mastbocks einen an die Mehrkantöffnung angepassten Mehrkantumriss aufweist und in die Mehrkantöffnung der Tragstruktur eingefügt ist. Dadurch ist es möglich, dass der Kessel mit zwei seiner Seitenflächen parallel zu einer Seitenwand je eines der Stützbeinkästen ausgerichtet ist. Wenn der Kessel dazuhin mit zwei seiner Seitenflächen in die betreffenden Seitenwände der Stützbeinkästen fluchtend integriert ist, wird bei kompakter Bauweise eine optimale Krafteinleitung zwischen Mastbock und Stützbeinkästen erzielt.To solve this problem, the feature combination specified in claim 1 is proposed. Advantageous embodiments and modifications of the invention will become apparent from the dependent claims. The inventive solution is based primarily on the idea that the support structure has an upwardly open, parallel to the axis of rotation of the distribution boom aligned polygonal opening and that the boiler of the mast block has adapted to the polygonal opening polygonal outline and is inserted into the polygonal opening of the support structure. This makes it possible that the boiler is aligned with two of its side surfaces parallel to a side wall of each one of the support leg boxes. If the boiler is also integrated with two of its side surfaces in the respective side walls of the support leg boxes in alignment, with a compact design, an optimal force transmission between mast support and support leg boxes is achieved.

Eine bevorzugte Ausgestaltung der Erfindung sieht vor, dass der Kessel im Bereich der Mehrkantöffnung und der Stützbeinkästen an die Tragstruktur angeflanscht und/oder in diese eingeschweißt ist. Vorteilhafterweise bildet der Kessel eine Säule aus mehrfach gekantetem Blech. Dadurch werden also zwei Kesselseitenflächen und zwei Seitenwände der Stützbeinkästen zu einem Bauteil vereint. Der Kraftfluss erfolgt über diese gemeinsame Struktur zwar nicht so direkt, als säße der Kessel im Kreuzungspunkt. Verglichen mit heute üblichen Betonpumpen ist die erfindungsgemäße Konstruktion aber weitgehend umlenkungsfrei.A preferred embodiment of the invention provides that the boiler is flanged to the support structure in the region of the polygonal opening and the support leg boxes and / or welded into this. Advantageously, the boiler forms a column of multi-folded sheet metal. This will be So two boiler side surfaces and two side walls of the support leg boxes united into one component. The power flow does not occur so directly over this common structure, as if the boiler sat in the crossing point. Compared with conventional concrete pumps today, the construction according to the invention is, however, largely free of deflection.

Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, dass der Kessel im Bereich seiner Oberkante einen in Wirkverbindung mit dem Verteilermast stehenden Drehantrieb aufweist. Weiter sind zweckmäßig die diagonal verlaufenden Stützbeinkästen derart zweistöckig ausgebildet, dass sie in verschiedener Höhe innerhalb der Tragstruktur angeordnete Teleskoprohre für die Stützbeine und durch einen Zwischenboden von diesen getrennte Freiräume aufweisen. Vorteilhafterweise steht der Kessel des Mastbocks im zentralen Bereich auf dem Zwischenboden auf, wobei im Zwischenboden eine Zentralöffnung für den Durchgriff und/oder für die Drehdurchführung von Förder-, Steuer- und Energieleitungen angeordnet ist.A further advantageous embodiment of the invention provides that the boiler in the region of its upper edge has a standing in operative connection with the distribution boom rotary drive. Further, the diagonally extending support leg boxes are expediently designed in such a way that they have telescopic tubes arranged at different heights within the support structure for the support legs and through an intermediate floor of these separate free spaces. Advantageously, the boiler of the girder is in the central area on the intermediate floor, wherein in the intermediate floor, a central opening for the passage and / or for the rotary feedthrough of conveying, control and power lines is arranged.

Aus Platzgründen kann die Mehrkantöffnung auf ihrer den Stützbeinkästen abgewandten Seite eine Randöffnung aufweisen, durch die der Kessel zur Stirnseite hin teilweise hindurchgreift. Der den Kessel tragende Zwischenboden weist dabei im Bereich der Zentralöffnung zweckmäßig eine durch Biegeverformung und/oder durch Strukturelemente gebildete Verstärkungszone auf.For reasons of space, the polygonal opening may have on its side facing away from the support leg boxes an edge opening through which the boiler partially reaches through to the front side. In this case, the intermediate bottom bearing the vessel expediently has a reinforcement zone formed by bending deformation and / or by structural elements in the region of the central opening.

Im Folgenden wird die Erfindung anhand eines in der Zeichnung in schematischer Weise dargestellten Ausführungsbeispiels näher erläutert. Es zeigen

Fig. 1
eine Seitenansicht einer fahrbaren Betonpumpe;
Fig. 2
eine Draufsicht auf die fahrbare Betonpumpe nach Fig. 1 bei abgenommenem Verteilermast;
Fig. 3
eine Draufsicht auf die Tragstruktur der Betonpumpe nach Fig. 1 und 2 ohne Kessel;
Fig. 4a
bis c drei schaubildliche Explosionsdarstellungen der Tragstruktur nach Fig. 3 mit ausgehobenem Kessel.
In the following the invention will be explained in more detail with reference to an embodiment shown schematically in the drawing. Show it
Fig. 1
a side view of a mobile concrete pump;
Fig. 2
a plan view of the mobile concrete pump after Fig. 1 with removed distributor boom;
Fig. 3
a plan view of the support structure of the concrete pump after Fig. 1 and 2 without boiler;
Fig. 4a
to c show three perspective exploded views of the supporting structure Fig. 3 with dug boiler.

Die in Fig. 1 und 2 gezeigte fahrbare Betonpumpe weist ein LKW-Chassis 10 mit einem motorgetriebenen Fahrgestell 12 und einem Führerhaus 14 auf, dessen Motorantrieb über einen Antriebsstrang 16 mit den Hinterachsen 18 kuppelbar ist. Das LKW-Chassis 10 trägt eine Betonpumpe 20, die über einen Aufbaurahmen 22 mit dem Fahrgestell 12 verbunden ist. Der Betonpumpenaufbau umfasst im Wesentlichen eine Kernpumpe 24 mit zwei hydraulischen Antriebszylindern 26, zwei paarweise mit den Antriebszylindern 26 über einen Wasserkasten 28 verbundenen Förderzylindern 30 und einem am anderen Ende der Förderzylinder 30 starr angeordneten Materialaufgabebehälter 32. Weiter umfasst der Aufbau eine Druckförderleitung 34, die über einen als Knickmast ausgebildeten Verteilermast 36 geführt ist und am Ende des letzten Mastarms einen den geförderten Beton zur Betonierstelle ausgebenden, nicht dargestellten Endschlauch aufweist.In the Fig. 1 and 2 shown mobile concrete pump has a truck chassis 10 with a motorized chassis 12 and a cab 14, the motor drive via a drive train 16 with the rear axles 18 can be coupled. The truck chassis 10 carries a concrete pump 20 which is connected via a body frame 22 to the chassis 12. The concrete pump assembly essentially comprises a core pump 24 with two hydraulic drive cylinders 26, two in pairs connected to the drive cylinders 26 via a water box 28 feed cylinders 30 and a rigidly arranged at the other end of the feed cylinder 30 material feed container 32. Further, the structure comprises a pressure feed line 34, which a trained as a crease mast distributor boom 36 is guided and at the end of the last mast arm has a subsidized concrete pouring for concreting, not shown end hose.

Der Verteilermast 36 ist auf einem in der Nähe des stirnseitigen Endes mit einer Tragstruktur 46 starr verbundenen Mastbock 44 um eine vertikale Drehachse 48 drehbar gelagert. Der Mastbock 44 weist bei dem gezeigten Ausführungsbeispiel einen in der Tragstruktur 46 integrierten, als Drehlager für den Verteilermast 36 ausgerüsteten Kessel 52 auf.The distribution boom 36 is rotatably mounted about a vertical axis of rotation 48 on a mast bracket 44 rigidly connected to a support structure 46 in the vicinity of the front end. The mast bracket 44 has in the embodiment shown a built-in support structure 46, as a pivot bearing for the distribution boom 36 equipped boiler 52.

Weiter ist eine Abstützvorrichtung 38 mit ausstellbaren Stützbeinen 40, 66 vorgesehen. Die Abstützvorrichtung umfasst zwei in der Tragstruktur 46 integrierte Stützbeinkästen 54, 56, die ihrerseits zwei diagonal nach vorne offene, einander in verschiedener Höhe kreuzende Teleskoprohre zur Aufnahme der vorderen Stützbeine 40 aufweisen. Am rückwärtigen Ende der Tragstruktur 46 sind außerdem an den Gelenken 64 zwei seitlich ausschwenkbare hintere Stützbeine 66 angelenkt. Beim Betonierbetrieb werden die Stützbeine 40, 66 ausgestellt und unter Anheben des Fahrgestells 12 auf dem Erdboden abgestützt.Next, a support device 38 is provided with extendable support legs 40, 66. The support device comprises two support leg boxes 54, 56 integrated in the support structure 46, which in turn have two telescoping tubes open diagonally forward, intersecting at different heights for receiving the front support legs 40. At the rear end of the support structure 46 are also on the joints 64 two laterally swinging rear Support legs 66 articulated. When concreting the support legs 40, 66 issued and supported lifting the chassis 12 on the ground.

Die Erfindung besteht darin, dass die Tragstruktur 46 eine nach oben offene, parallel zur Drehachse 48 des Verteilermasts 36 ausgerichtete Mehrkantöffnung 50 aufweist, dass der Kessel 52 des Mastbocks 44 einen an die Mehrkantöffnung 50 angepassten Mehrkantumriss aufweist und von oben her in die Mehrkantöffnung 50 der Tragstruktur 46 eingefügt ist, und dass der Kessel 52 mit zwei seiner einen Winkel miteinander einschließenden Seitenflächen 68 parallel zu einer Seitenwand 70 je eines der Stützbeinkästen 54, 56 ausgerichtet ist. Wie insbesondere aus den Fig. 4a bis c zu ersehen ist, bildet der Kessel 52 eine Säule aus mehrfach gekantetem Blech. Er ist im Bereich der Mehrkantöffnung 50 so in die Tragstruktur 46 eingefügt, dass er mit zwei seiner Seitenflächen 68 in eine Seitenwand 70 je eines der Stützbeinkästen 54, 56 fluchtend integriert ist. Um eine starre Verbindung zwischen den tragenden Teilen des Kessels 52 und der Tragstruktur 46 zu erzielen, ist der Kessel 52 im Bereich der Mehrkantöffnung 50 und der Stützbeinkästen 54, 56 in die Tragstruktur 46 eingeschweißt.The invention consists in that the support structure 46 has an upwardly open, parallel to the axis of rotation 48 of the distribution boom 36 aligned polygonal opening 50 that the boiler 52 of the mast block 44 has adapted to the polygonal opening 50 polygonal outline and from above into the polygonal opening 50 of Carrying structure 46 is inserted, and that the boiler 52 is aligned with two of its an angle with each other enclosing side surfaces 68 parallel to a side wall 70 of each of the support leg boxes 54, 56. As in particular from the Fig. 4a to c can be seen, the boiler 52 forms a column of multi-folded sheet metal. It is inserted in the region of the polygonal opening 50 in the support structure 46 so that it is integrated with two of its side surfaces 68 in a side wall 70 each one of the support leg boxes 54, 56 in alignment. In order to achieve a rigid connection between the supporting parts of the boiler 52 and the support structure 46, the boiler 52 is welded in the support structure 46 in the region of the polygonal opening 50 and the support leg boxes 54, 56.

Weiter ist aus den Fig. 4a bis c zu erkennen, dass die diagonal verlaufenden Stützbeinkästen 54, 56 derart zweistöckig ausgebildet sind, dass ihre in verschiedener Höhe innerhalb der Tragstruktur 46 angeordneten Teleskoprohre durch einen Zwischenboden 72 von diesen getrennte Freiräume 74 begrenzen. Im montierten Zustand steht der Kessel 52 des Mastbocks 44 auf dem Zwischenboden 72 auf. Der Zwischenboden 72 ist dort mit einer Zentralöffnung 76 für den Durchgriff und/oder für die Drehdurchführung von nicht dargestellten Förder-, Steuer- und Energieleitungen versehen. Im Bereich der Zentralöffnung 76 weist der Zwischenboden 72 eine durch Biegeverformung und durch Strukturelemente 78 gebildete Verstärkungszone 80 auf, die die senkrechte Last des Verteilermasts 36 aufnimmt und über die Tragstruktur 46 auf die Stützbeine 40, 66 umlenkt. Aus Fig. 4a bis c ist außerdem zu ersehen, dass die Mehrkantöffnung 50 auf ihrer den Stützbeinkästen 54, 56 abgewandten Stirnseite eine Randöffnung 82 aufweist, durch die der Kessel 52 teilweise hindurchgreift. Im Bereich seiner Oberkante weist der Kessel 52 einen in Wirkverbindung mit dem Verteilermast stehenden Drehantrieb auf, dessen Lager 84 in Fig. 4a bis c zu sehen ist.Next is from the Fig. 4a to c to recognize that the diagonally extending support leg boxes 54, 56 are formed in such a two-story, that their arranged at different heights within the support structure 46 telescopic tubes bound by an intermediate bottom 72 of these separate spaces 74. In the assembled state of the boiler 52 of the mast block 44 is on the intermediate floor 72. The intermediate bottom 72 is provided there with a central opening 76 for the passage and / or for the rotary feedthrough of conveying, control and power lines, not shown. In the area of the central opening 76, the intermediate floor 72 has a reinforcement zone 80 formed by bending deformation and by structural elements 78, which receives the vertical load of the distributor boom 36 and deflects it via the support structure 46 onto the support legs 40, 66. Out Fig. 4a to c can also be seen the polygonal opening 50 has an edge opening 82 on its front side remote from the support leg boxes 54, 56, through which the boiler 52 partially reaches. In the region of its upper edge, the boiler 52 has a rotary drive which is in operative connection with the distributor boom and whose bearing 84 is in Fig. 4a to c you can see.

Zusammenfassend ist folgendes festzustellen: Die Erfindung bezieht sich auf eine fahrbare Betonpumpe mit einer unmittelbar oder mittelbar über einen Aufbaurahmen 22 auf ein Fahrgestell 12 eines LKW-Chassis 10 aufgesetzte Tragstruktur 46, welche eine Abstützvorrichtung und einen Verteilermast 36 bildende Funktionseinheiten aufnimmt. Der Verteilermast 36 ist an einem Mastbock 44 drehbar gelagert. Der Mastbock 44 umfasst einen in die Tragstruktur 46 eingefügten, als Drehlager für den Verteilermast 36 ausgerüsteten Kessel 52, während die Abstützvorrichtung zwei in der Tragstruktur 46 integrierte, diagonal nach vorne offene, einander kreuzende Stützbeinkästen 54, 56 sowie je ein in den Stützbeinkästen teleskopierbar angeordnetes Stützbein 40 aufweist. Die Erfindung besteht darin, dass die Tragstruktur 46 eine nach oben offene, parallel zur Drehachse 48 des Verteilermasts 36 ausgerichtete Mehrkantöffnung 50 aufweist, während der Kessel 52 des Mastbocks 44 einen an die Mehrkantöffnung 50 angepassten Mehrkantumriss aufweist und von oben her in die Mehrkantöffnung 50 der Tragstruktur 46 eingefügt ist. Bei dieser Konstruktion wird ein besonders guter Kraftfluss zwischen dem Verteilermast 36 und den Stützbeinen 40 dadurch erzielt, dass der Kessel 52 mit zwei seiner einen Winkel miteinander einschließenden Seitenflächen 68 parallel zu einer Seitenwand 70 je eines der Stützbeinkästen 54, 56 ausgerichtet ist.In summary, the following is to be stated: The invention relates to a mobile concrete pump with a directly or indirectly via a body frame 22 on a chassis 12 of a truck chassis 10 patch support structure 46 which receives a support device and a distribution boom 36 forming functional units. The distribution boom 36 is rotatably mounted on a mast block 44. The mast bracket 44 comprises a inserted into the support structure 46, equipped as a pivot bearing for the distribution boom 36 boiler 52, while the support two integrated in the support structure 46, diagonally forward open, intersecting Stützbeinkästen 54, 56 and one telescopically arranged in the support leg boxes Support leg 40 has. The invention consists in that the support structure 46 has an upwardly open, parallel to the axis of rotation 48 of the distribution boom 36 aligned polygonal opening 50, while the boiler 52 of the mast block 44 has adapted to the polygonal opening 50 polygonal outline and from above into the polygonal opening 50 of Support structure 46 is inserted. In this construction, a particularly good flow of force between the distribution boom 36 and the support legs 40 is achieved in that the boiler 52 is aligned with two of its an angle enclosing side surfaces 68 parallel to a side wall 70 of each of the support leg boxes 54, 56.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
LKW-ChassisTruck chassis
1212
Fahrgestellchassis
1414
Führerhauscabin
1616
Antriebsstrangpowertrain
1818
Hinterachserear axle
2020
Betonpumpeconcrete pump
2222
Aufbaurahmenmounting frame
2424
Kernpumpecore pump
2626
Antriebszylinderdrive cylinder
2828
Wasserkastencistern
3030
Förderzylinderdelivery cylinders
3232
MaterialaufgabebehälterMaterial feed container
3434
DruckförderleitungPressure feed line
3636
Verteilermastplacing boom
40, 6640, 66
Stützbeinesupport legs
4444
Mastbockboom base
4646
Tragstruktursupporting structure
4848
Drehachseaxis of rotation
5050
MehrkantöffnungPolygonal opening
5252
Kesselboiler
54, 5654, 56
StützbeinkästenOutrigger boxes
6464
Gelenkjoint
6868
Seitenfläche KesselSide surface boiler
7070
SeitenwandSide wall
7272
Zwischenbodenfalse floor
7474
FreiräumeFree rooms
7676
Zentralöffnungcentral opening
7878
Strukturelementestructural elements
8080
Verstärkungszonereinforcement zone
8282
Randöffnungperipheral opening
8484
Lager des DrehantriebsBearing of the rotary drive

Claims (9)

  1. A mobile concrete pump with a carrying structure (46) placed directly or indirectly via a mounting frame (22) onto a running gear (12) of a motor truck chassis (10), which accommodates functional units forming a supporting device and a distributor mast (36), the distributor mast (36) being mounted rotatably on a mast trestle (44) which comprises a shell (52) inserted into the carrying structure (46) and equipped as a rotary bearing for the distributor mast (36), and the supporting device comprising two mutually intersecting supporting leg boxes (54, 56) integrated in the carrying structure (46) and open diagonally forward and in each case a supporting leg (40) arranged telescopically in the supporting leg boxes (54, 56), characterized in that the carrying structure (46) has an upwardly open polygonal orifice (50) oriented parallel to the axis of rotation (48) of the distributor mast (36), in that the shell (52) of the mast trestle (44) has a polygonal contour adapted to the polygonal orifice (50) and is inserted into the polygonal orifice (50) of the carrying structure (46), and in that the shell (52) is oriented with two of its side faces (68) parallel to a side wall (70) of one of the supporting leg boxes (54, 56) in each case.
  2. The concrete pump as claimed in claim 1, characterized in that the shell (52) is integrated alignedly with two of its side faces (68) into a side wall (70) of one of the supporting leg boxes (54, 56) in each case.
  3. The concrete pump as claimed in claim 1 or 2, characterized in that the shell (52) is flanged to the carrying structure (46) and/or welded into this in the region of the polygonal orifice (50) and of the supporting leg boxes (54, 56).
  4. The concrete pump as claimed in one of claims 1 to 3, characterized in that the shell (52) forms a column composed of multiply bent sheet metal.
  5. The concrete pump as claimed in one of claims 1 to 4, characterized in that the shell (52) has in the region of its top edge a rotary drive connected operatively to the distributor mast (36).
  6. The concrete pump as claimed in one of claims 1 to 5, characterized in that the diagonally running supporting leg boxes (54, 56) are formed with two stories in such a way that they have telescopic tubes, arranged at different heights inside the carrying structure (46), for the supporting legs and free spaces (74) separated from these telescopic tubes by an intermediate floor (72).
  7. The concrete pump as claimed in claim 6, characterized in that the shell (52) of the mast trestle (44) stands on the intermediate floor (72), and in that a central orifice (76) for the passage and/or rotary leadthrough of conveying, control and power lines is arranged in the intermediate floor (72).
  8. The concrete pump as claimed in one of claims 1 to 7, characterized in that the polygonal orifice (50) has, on its side facing away from the supporting leg boxes (54, 56), a marginal orifice (82).
  9. The concrete pump as claimed in one of claims 6 to 8, characterized in that the intermediate floor (72) has in the region of the central orifice (76) a reinforcing zone (80) formed as a result of bending deformation and/or by structural elements (78).
EP13734802.5A 2012-08-24 2013-07-10 Mobile concrete pump Not-in-force EP2888422B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012215050.1A DE102012215050A1 (en) 2012-08-24 2012-08-24 Mobile concrete pump
PCT/EP2013/064552 WO2014029552A1 (en) 2012-08-24 2013-07-10 Mobile concrete pump

Publications (2)

Publication Number Publication Date
EP2888422A1 EP2888422A1 (en) 2015-07-01
EP2888422B1 true EP2888422B1 (en) 2016-05-25

Family

ID=48748265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13734802.5A Not-in-force EP2888422B1 (en) 2012-08-24 2013-07-10 Mobile concrete pump

Country Status (6)

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US (1) US9175484B2 (en)
EP (1) EP2888422B1 (en)
KR (1) KR20150045936A (en)
CN (1) CN104271855B (en)
DE (1) DE102012215050A1 (en)
WO (1) WO2014029552A1 (en)

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Also Published As

Publication number Publication date
CN104271855B (en) 2017-07-25
DE102012215050A1 (en) 2014-03-27
CN104271855A (en) 2015-01-07
KR20150045936A (en) 2015-04-29
EP2888422A1 (en) 2015-07-01
WO2014029552A1 (en) 2014-02-27
US9175484B2 (en) 2015-11-03
US20150056084A1 (en) 2015-02-26

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