EP1290292B1 - Distributor device for thick matter - Google Patents

Distributor device for thick matter Download PDF

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Publication number
EP1290292B1
EP1290292B1 EP02706752A EP02706752A EP1290292B1 EP 1290292 B1 EP1290292 B1 EP 1290292B1 EP 02706752 A EP02706752 A EP 02706752A EP 02706752 A EP02706752 A EP 02706752A EP 1290292 B1 EP1290292 B1 EP 1290292B1
Authority
EP
European Patent Office
Prior art keywords
boom
distribution device
telescopic
conduit
hose
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
EP02706752A
Other languages
German (de)
French (fr)
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EP1290292A1 (en
Inventor
Hartmut Benckert
Hans Renz
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 Concrete Pumps GmbH
Original Assignee
Putzmeister AG
Putzmeister Werk Maschinenfabrik GmbH
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Putzmeister AG, Putzmeister Werk Maschinenfabrik GmbH filed Critical Putzmeister AG
Publication of EP1290292A1 publication Critical patent/EP1290292A1/en
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Publication of EP1290292B1 publication Critical patent/EP1290292B1/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
    • 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
    • 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 distributor device for thick matter, in particular for concrete, with a placing boom carrying a delivery line, which is at least two about horizontal articulation axes relative to each other or to a bearing block has pivotable mast arms, at least one of which is telescopic and a fixed part and an aligned with this has extendable telescopic part, the delivery line in the area of telescopic mast arms made up of several interconnected pipe sections is composed, of which a first line section preferably rigid with the fixed part, a second line section is preferably rigidly connected to the telescopic part and one to the telescopic movement of the telescopic part adaptable intermediate section connects the first to the second line section.
  • Distribution devices of this type are mainly used for the conveying of concrete used, for example for the production of concrete ceilings in building construction.
  • the delivery line runs along the mast arms and points in the area the articulated axes to these axially parallel articulations. in the The area of the telescopic mast arm is an additional length adjustment the delivery line required.
  • the object of the invention is a distribution device to develop for thick matter, which with simple means also length adjustment of the delivery line to a large telescope hub enables a telescopic mast arm.
  • a hose can be easily changed by changing its length can be adapted to different telescopic strokes.
  • a preferred embodiment of the invention provides that the flexible Hose partially in a support trough rigidly connected to the fixed part can be supported, the 180 ° bend protruding over the support trough and with its tub end when telescoping along the support trough emigrated.
  • the support trough is expediently arranged at a distance from the fixed part.
  • the fixed part also has a convex distance from the support trough Supporting link to support the 180 ° bend in the retracted state of the Telescopic part.
  • the first Line section essentially from the articulation of the fixed part parallel section running parallel to its longitudinal extent and one adjoining, diagonally to the fixed telescope part up close the support trough has inclined section, to which the latter Hose with its inlet side aligned parallel to the support trough End is connected.
  • the second line section from the articulation of the telescopic part has tube extending substantially parallel to the telescopic axis the hose with its outlet side pointing in the direction of entry End is preferably connected via a 180 ° elbow.
  • a particularly advantageous application of the invention is that the placing boom is arranged on a chassis of a truck-mounted concrete pump is, the delivery line to the pressure outlet one on the chassis arranged feed pump is connected.
  • Another preferred embodiment of the invention provides that the placing boom with its telescopic base arm on one near one Cab arranged around a vehicle-fixed vertical axis 360 ° rotatable mast bracket is articulated, and that the distance between the Axis of rotation and the sloping section of the first line section at least the distance between the axis of rotation and the front edge of the cab equivalent. This measure avoids that when telescoping of the base arm when swung horizontally over the cab Distribution boom for collisions of the delivery line with the driver's cab can come.
  • the fixed part of the telescopic base arm is advantageously longer than the downstream mast arms of the placing boom. With the invention Measures, it is possible that the telescopic base arm one large telescope hub. It has proven to be particularly advantageous if the telescopic base arm in the extended state of the Telescopic part is 1.6 to 3.5 times as long as the downstream mast arms.
  • the truck-mounted concrete pumps shown in the drawing comprise a chassis 10 with a cab 12, e.g. as a two-cylinder piston pump trained thick matter pump 14 and a distribution device 16, the one Distribution boom 18 comprises as a carrier for a concrete delivery line 20.
  • the concrete delivery line becomes liquid concrete, which is in a hopper 22nd continuously poured in during concreting, to one from the site of the vehicle 10 located at a concreting site.
  • the distributor device 16 comprises one by means of a hydraulic rotary drive around a vehicle-fixed vertical axis 24 mast bracket 26 and one on this swiveling placing boom 18, which has a variable reach and height difference between the vehicle 10 and the concreting site continuously is adjustable.
  • the placing boom 18 is in the illustrated Embodiments of four articulated mast arms 30 to 36, which are parallel to each other and perpendicular to the axis of rotation 24 of the mast bracket 26 extending articulated axes 38 to 44 are pivotable.
  • Base arm 30 is also composed of a telescopic arm Fixed part 46 and a telescopic part which can be extended in alignment with this 48 trained.
  • the articulated axes 38 to 44 and the telescopic axis 68 are coordinated so that the placing boom 18 when retracted Telescopic part 48 and multiple folding of the mast arms 30 to 36 in one space-saving transport configuration can be stored on the chassis 10 is.
  • drive units designed as hydraulic cylinders 50 to 56 which are individually assigned to the articulation axes 38 to 44, and a drive unit, not shown, for the telescopic part 48 the placing boom 18 between the vehicle location and the pouring point deployable.
  • a special feature of the distribution devices 16 shown in FIGS. 1 and 2 is that the delivery line 20 in the telescopic area Mast arm 30 composed of three interconnected pipe sections is, of which a first line section 58 rigid with the Fixed 46 and a second line section 60 rigid with the telescopic part 48 are connected, while an intermediate section 62 to the telescopic movement of the telescopic part 48 is adaptable.
  • the intermediate section 62 is formed as a flexible, relatively rigid hose with its inlet side End 64 to the output of the first line section 58 and with its exit-side end 66 to the input of the second line section 60 is connected.
  • the tube 62 has one when telescoping parallel to the telescopic axis 68, 180 ° bend 70 with constant Curvature on.
  • the hose 62 is in one with the fixed part 46 support arm rigidly connected via jib 72 74 partially supportable.
  • the 180 ° arc moves with its tub-side end along the support trough and stands with the rest over the support trough.
  • On the side of the extendable telescopic part 48 is also an overlapping the outlet-side end 66 of the hose 62 or encompassing stop link 76 provided.
  • the hose 62 is there with its outlet end 66 over a 180 ° elbow 78 connected to the input of the second line section 60.
  • first line section 58 one from the articulation axis 38 of the fixed part 46 essentially parallel to this extending longitudinal section and a subsequent, oblique to fixed telescopic part 46 extending into the vicinity of the support trough 74 Inclined portion 84 to which the hose 62 with its parallel to Support pan 74 aligned entry-side end 64 is connected
  • This measure ensures that there is a free space under the base arm 30 86 remains, which allows the spreader mast to be aligned horizontally To rotate the base arm 30 without collision via the cab 12.
  • the distance between the axis of rotation 24 corresponds to the Mastbocks 26 and the inclined section 84 at least the distance between the axis of rotation 24 and the front edge 88 of the cab 12.
  • the fixed part 46 of the telescopic base arm 30 longer than the downstream mast arms 32 to 36.
  • the telescopic Gnund arm is using the full telescopic stroke in the case of FIG. 1 about 1.7 times as much long as the downstream mast arms.
  • 2 is the extended one Basic arm even 2.6 times as long as the downstream mast arms.
  • the truck-mounted concrete pumps described are particularly suitable for pulling in of ceilings in buildings, the telescopic base arm 30 essential contributes to the distribution device 16 from the location of the vehicle 10 is adaptable to a predetermined floor height.
  • the concrete pump manufacturer given a design principle that can be used with any telescopic hoist is customizable. He only needs a sufficient hose length choose.
  • the invention relates to a distributor device for thick matter, especially for concrete.
  • the distribution device 16 comprises a placing boom carrying a delivery line 20 18, the at least two about horizontal articulation axes 38 to 44 relative Mast arms 30 to 36 pivotable to one another or to a mast bracket 26 having.
  • At least one of the mast arms, preferably the base arm 30, is telescopic.
  • To be adapted to the telescopic movement To be able to do this is the delivery line in the area of the telescopic mast arm composed of three interconnected pipe sections.
  • a first line section 58 is rigidly connected to the fixed part 46, while a second line section 60 rigid with the extendable telescopic part 48 is connected.
  • An intermediate section 62 is also provided, the one with its ends 64, 66 on the first and the second line section 58,60 connected and is designed as a flexible hose.
  • the hose has a wandering when telescoping 180 ° bend 70 with constant curvature.

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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)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to a distributor device for thick matter, especially for concrete. The distributor device ( 16 ) comprises a concrete distributing boom ( 18 ) carrying a conveying conduit ( 20 ), which has at least two boom arms ( 30 to 36 ) that can be swiveled about horizontal articulation axes ( 38 to 44 ) relative to one another or relative to a boom support ( 26 ). At least one of the boom arms, preferably the base arm ( 30 ), is telescopically movable. In order to be adaptable to the telescoping movements, the conveying conduit is assembled from three interlinked conduit sections in the area of the telescoping boom arm. A first conduit section ( 58 ) is rigidly linked with the stationary member ( 46 ), while a second conduit section ( 60 ) is rigidly linked with the extensible telescoping member ( 48 ). The device further comprises an intermediate section ( 62 ) which is connected with its ends ( 64, 66 ) to the first and the second conduit section ( 58, 60 ) and which is configured as a flexible pipe. Said pipe has a 180° arch ( 70 ) with constant bend that travels when the boom arm telescopes.

Description

Die Erfindung betrifft eine Verteilervorrichtung für Dickstoffe, insbesondere für Beton, mit einem eine Förderleitung tragenden Verteilermast, der mindestens zwei um horizontale Knickachsen relativ zueinander oder zu einem Lagerbock verschwenkbare Mastarme aufweist, von denen mindestens einer teleskopierbar ist und ein Festteil sowie ein gegenüber diesem fluchtend ausfahrbares Teleskopteil aufweist, wobei die Förderleitung im Bereich des teleskopierbaren Mastarms aus mehreren miteinander verbundenen Leitungsabschnitten zusammengesetzt ist, von denen ein erster Leitungsabschnitt vorzugsweise starr mit dem Festteil, ein zweiter Leitungsabschnitt vorzugsweise starr mit dem Teleskopteil verbunden ist und ein an die Teleskopierbewegung des Teleskopteils anpaßbarer Zwischenabschnitt den ersten mit dem zweiten Leitungsabschnitt verbindet.The invention relates to a distributor device for thick matter, in particular for concrete, with a placing boom carrying a delivery line, which is at least two about horizontal articulation axes relative to each other or to a bearing block has pivotable mast arms, at least one of which is telescopic and a fixed part and an aligned with this has extendable telescopic part, the delivery line in the area of telescopic mast arms made up of several interconnected pipe sections is composed, of which a first line section preferably rigid with the fixed part, a second line section is preferably rigidly connected to the telescopic part and one to the telescopic movement of the telescopic part adaptable intermediate section connects the first to the second line section.

Verteilervorrichtungen dieser Art werden vor allem für die Förderung von Beton verwendet, beispielsweise zur Herstellung von Betondecken im Hochbau. Die Förderleitung ist entlang den Mastarmen geführt und weist im Bereich der Knickachsen zu diesen achsparallele Gelenkverbindungen auf. Im Bereich des teleskopierbaren Mastarms ist zusätzlich eine Längenanpassung der Förderleitung erforderlich.Distribution devices of this type are mainly used for the conveying of concrete used, for example for the production of concrete ceilings in building construction. The delivery line runs along the mast arms and points in the area the articulated axes to these axially parallel articulations. in the The area of the telescopic mast arm is an additional length adjustment the delivery line required.

Bei einer Verteilervorrichtung der eingangs angegebenen Art ist es bekannt (US-4130134), einen Verteilermast für eine Autobetonpumpe mit einem teleskopierbaren Grundarm auszustatten. Die Längenanpassung der Förderleitung erfolgt dort durch ein Scherensystem bestehend aus drei gelenkig miteinander verbundenen Leitungsabschnitten. Die Leitungsabschnitte kragen beim Teleskopiervorgang weit über den teleskopierbaren Mastarm seitlich über und stellen somit ein Hindemis für die Mastbewegung dar. Außerdem sind dem Teleskophub des dortigen Teleskopaufbaus aufgrund der scherenartigen Ausbildung der Leitungsabschnitte enge Grenzen gesetzt.In a distributor device of the type specified at the outset, it is known (US-4130134), a boom for a truck-mounted concrete pump with a telescopic Equip basic arm. The length adjustment of the delivery line is done there by a scissor system consisting of three articulated interconnected pipe sections. The line sections are collared during the telescopic process far over the telescopic mast arm on the side and thus represent a hindrance to the mast movement are the telescope hub of the telescope structure there due to the scissor-like design of the line sections set narrow limits.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Verteilervorrichtung für Dickstoffe zu entwickeln, die mit einfachen Mitteln auch bei einem großen Teleskophub eine Längenanpassung der Förderleitung an einen teleskopierbaren Mastarm ermöglicht.Proceeding from this, the object of the invention is a distribution device to develop for thick matter, which with simple means also length adjustment of the delivery line to a large telescope hub enables a telescopic mast arm.

Zur Lösung dieser Aufgabe wird die im Patentanspruch 1 angegebene Merkmalskombination vorgeschlagen. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.To solve this problem, that specified in claim 1 Characteristic combination proposed. Advantageous refinements and developments the invention emerge from the subclaims.

Erfindungsgemäß ist der an die Teleskopierbewegung des Teleskopteils anpaßbare Zwischenabschnitt als mit seinen Enden an einen ersten und zweiten Leitungsabschnitt angeschlossener biegsamer Schlauch ausgebildet, der einen parallel zur Teleskopbewegung wandernden 180°-Bogen mit konstanter Krümmung aufweist. Ein derartiger Schlauch kann durch Veränderung seiner Länge einfach an unterschiedliche Teleskophübe angepaßt werden.According to the invention Telescopic movement of the telescopic part adaptable intermediate section as with its ends connected to a first and second line section flexible hose formed, one parallel to the telescopic movement wandering 180 ° curve with constant curvature. Such a hose can be easily changed by changing its length can be adapted to different telescopic strokes.

Eine bevorzugte Ausgestaltung der Erfindung sieht vor, daß der biegsame Schlauch in einer mit dem Festteil starr verbundenen Stützwanne partiell abstützbar ist, wobei der 180°-Bogen über die Stützwanne übersteht und mit seinem wannenseitigen Ende beim Teleskopieren entlang der Stützwanne wandert. Die Stützwanne ist zweckmäßig im Abstand von dem Festteil angeordnet. Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung weist das Festteil außerdem im Abstand von der Stützwanne eine konvexe Stützkulisse zur Abstützung des 180°-Bogens im eingefahrenen Zustand des Teleskopteils auf. Zur weiteren Verbesserung der Schlauchführung während des Teleskopierens trägt das Teleskopteil in der Nähe seines dem Festteil zugewandten Endes eine das austrittsseitige Ende des Schlauchs übergreifende oder umgreifende Anschlagkulisse.A preferred embodiment of the invention provides that the flexible Hose partially in a support trough rigidly connected to the fixed part can be supported, the 180 ° bend protruding over the support trough and with its tub end when telescoping along the support trough emigrated. The support trough is expediently arranged at a distance from the fixed part. According to a further advantageous embodiment of the invention the fixed part also has a convex distance from the support trough Supporting link to support the 180 ° bend in the retracted state of the Telescopic part. To further improve the hose routing during of telescoping carries the telescopic part in the vicinity of the fixed part end facing a spanning the outlet end of the hose or encompassing backdrop.

Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, daß der erste Leitungsabschnitt eine vom Knickgelenk des Festteils aus im wesentlichen parallel zu dessen Längserstreckung verlaufende Parallelpartie und eine daran anschließende, schräg zum feststehenden Teleskopteil bis in die Nähe der Stützwanne verlaufende Schrägpartie aufweist, an welch letztere der Schlauch mit seinem parallel zur Stützwanne ausgerichteten eintrittsseitigen Ende angeschlossen ist. Weiter wird gemäß der Erfindung vorgeschlagen, daß der zweite Leitungsabschnitt ein vom Knickgelenk des Teleskopteils aus im wesentlichen parallel zur Teleskopachse verlaufendes Rohr aufweist, an das der Schlauch mit seinem in Einfahrrichtung weisenden austrittsseitigen Ende vorzugsweise über einen 180°-Rohrkrümmer angeschlossen ist.Another advantageous embodiment of the invention provides that the first Line section essentially from the articulation of the fixed part parallel section running parallel to its longitudinal extent and one adjoining, diagonally to the fixed telescope part up close the support trough has inclined section, to which the latter Hose with its inlet side aligned parallel to the support trough End is connected. It is further proposed according to the invention that the second line section from the articulation of the telescopic part has tube extending substantially parallel to the telescopic axis the hose with its outlet side pointing in the direction of entry End is preferably connected via a 180 ° elbow.

Besonders vorteilhaft ist es, wenn der an einem um eine vertikale Achse drehbare Mastbock angelenkte Grundarm des Verteilermasts teleskopierbar ist.It is particularly advantageous if the on a around a vertical axis rotatable mast bracket articulated base arm of the placing boom telescopic is.

Ein besonders vorteihafter Anwendungsfall der Erfindung besteht darin, daß der Verteilermast auf einem Fahrgestell einer Autobetonpumpe angeordnet ist, wobei die Förderleitung an den Druckausgang einer auf dem Fahrgestell angeordneten Förderpumpe angeschlossen ist.A particularly advantageous application of the invention is that the placing boom is arranged on a chassis of a truck-mounted concrete pump is, the delivery line to the pressure outlet one on the chassis arranged feed pump is connected.

Eine weitere bevorzugte Ausgestaltung der Erfindung sieht vor, daß der Verteilermast mit seinem teleskopierbaren Grundarm an einem in der Nähe eines Fahrerhauses angeordneten, um eine fahrzeugfeste Hochachse um 360° drehbaren Mastbock angelenkt ist, und daß der Abstand zwischen der Drehachse und der Schrägpartie des ersten Leitungsabschnitts mindestens dem Abstand zwischen der Drehachse und der Vorderkante des Fahrerhauses entspricht. Mit dieser Maßnahme wird vermieden, daß es beim Teleskopieren des Grundarms bei über das Fahrerhaus horizontal ausgeschwenktem Verteilermast zu Kollisionen der Förderleitung mit dem Fahrerhaus kommen kann.Another preferred embodiment of the invention provides that the placing boom with its telescopic base arm on one near one Cab arranged around a vehicle-fixed vertical axis 360 ° rotatable mast bracket is articulated, and that the distance between the Axis of rotation and the sloping section of the first line section at least the distance between the axis of rotation and the front edge of the cab equivalent. This measure avoids that when telescoping of the base arm when swung horizontally over the cab Distribution boom for collisions of the delivery line with the driver's cab can come.

Der Festteil des teleskopierbaren Grundarms ist vorteilhafterweise länger als die nachgeordneten Mastarme des Verteilermasts. Mit den erfindungsgemäßen Maßnahmen ist es möglich, daß der teleskopierbare Grundarm einen großen Teleskophub ausführt. Als besonders vorteilhaft hat es sich erwiesen, wenn der teleskopierbare Grundarm im ausgefahrenen Zustand des Teleskopteils 1,6 bis 3,5 mal so lang ist wie die nachgeordneten Mastarme.The fixed part of the telescopic base arm is advantageously longer than the downstream mast arms of the placing boom. With the invention Measures, it is possible that the telescopic base arm one large telescope hub. It has proven to be particularly advantageous if the telescopic base arm in the extended state of the Telescopic part is 1.6 to 3.5 times as long as the downstream mast arms.

Im folgenden wird die Erfindung anhand der Zeichnung näher erläutert. Es zeigen

Fig. 1
eine Seitenansicht einer Autobetonpumpe mit dreiachsigem Fahrgestell und Verteilermast mit teleskopierbarem Grundarm in eingefalteter Transportstellung und in ausgefalteter und teleskopierter Arbeitsstellung;
Fig. 2
eine Seitenansicht einer Autobetonpumpe mit vierachsigem Fahrgestell in einer Darstellung entsprechend Fig. 1.
The invention is explained in more detail below with reference to the drawing. Show it
Fig. 1
a side view of a truck-mounted concrete pump with three-axle chassis and placing boom with telescopic base arm in the folded transport position and in the unfolded and telescopic working position;
Fig. 2
2 shows a side view of a truck-mounted concrete pump with a four-axle chassis in a representation corresponding to FIG. 1.

Die in der Zeichnung dargestellten Autobetonpumpen umfassen ein Fahrgestell 10 mit einem Fahrerhaus 12, eine z.B. als Zweizylinderkolbenpumpe ausgebildete Dickstoffpumpe 14 sowie einer Verteilervorrichtung 16, die einen Verteilermast 18 als Träger für eine Betonförderleitung 20 umfaßt. Über die Betonförderleitung wird Flüssigbeton, der in einen Aufgabebehäfter 22 während des Betonierens fortlaufend eingebracht wird, zu einer vom Standort des Fahrzeugs 10 entfernt angeordneten Betonierstelle gefördert. The truck-mounted concrete pumps shown in the drawing comprise a chassis 10 with a cab 12, e.g. as a two-cylinder piston pump trained thick matter pump 14 and a distribution device 16, the one Distribution boom 18 comprises as a carrier for a concrete delivery line 20. about the concrete delivery line becomes liquid concrete, which is in a hopper 22nd continuously poured in during concreting, to one from the site of the vehicle 10 located at a concreting site.

Die Verteilervorrichtung 16 umfaßt einen mittels eines hydraulischen Drehantriebs um eine fahrzeugfeste Hochachse 24 drehbaren Mastbock 26 und einen an diesem schwenkbaren Verteilermast 18, der auf variable Reichweite und Höhendifferenz zwischen dem Fahrzeug 10 und der Betonierstelle kontinuierlich einstellbar ist. Der Verteilermast 18 besteht bei den dargestellten Ausführungsbeispielen aus vier gelenkig miteinander verbundenen Mastarmen 30 bis 36, die um parallel zueinander und rechtwinklig zur Drehachse 24 des Mastbocks 26 verlaufende Knickachsen 38 bis 44 schwenkbar sind. Der unmittelbar an dem Mastbock 26 im Bereich der Knickachse 38 angelenkte Grundarm 30 ist zusätzlich als Teleskoparm bestehend aus einem Festteil 46 und einem gegenüber diesem fluchtend ausfahrbaren Teleskopteil 48 ausgebildet. Die Knickachsen 38 bis 44 und die Teleskopachse 68 sind so aufeinander abgestimmt, daß der Verteilermast 18 bei eingefahrenem Teleskopteil 48 und mehrfacher Faltung der Mastarme 30 bis 36 in einer raumsparenden Transportkonfiguration auf dem Fahrgestell 10 ablegbar ist. Durch eine Aktivierung von als Hydrozylinder ausgebildeten Antriebsaggregaten 50 bis 56, die den Knickachsen 38 bis 44 einzeln zugeordnet sind, sowie eines nicht dargestellten Antriebsaggregats für das Teleskopteil 48 ist der Verteilermast 18 zwischen dem Fahrzeugstandort und der Betonierstelle entfaltbar.The distributor device 16 comprises one by means of a hydraulic rotary drive around a vehicle-fixed vertical axis 24 mast bracket 26 and one on this swiveling placing boom 18, which has a variable reach and height difference between the vehicle 10 and the concreting site continuously is adjustable. The placing boom 18 is in the illustrated Embodiments of four articulated mast arms 30 to 36, which are parallel to each other and perpendicular to the axis of rotation 24 of the mast bracket 26 extending articulated axes 38 to 44 are pivotable. The one articulated directly on the mast bracket 26 in the area of the articulation axis 38 Base arm 30 is also composed of a telescopic arm Fixed part 46 and a telescopic part which can be extended in alignment with this 48 trained. The articulated axes 38 to 44 and the telescopic axis 68 are coordinated so that the placing boom 18 when retracted Telescopic part 48 and multiple folding of the mast arms 30 to 36 in one space-saving transport configuration can be stored on the chassis 10 is. By activating drive units designed as hydraulic cylinders 50 to 56, which are individually assigned to the articulation axes 38 to 44, and a drive unit, not shown, for the telescopic part 48 the placing boom 18 between the vehicle location and the pouring point deployable.

Eine Besonderheit der in Fig. 1 und 2 dargestellten Verteilervorrichtungen 16 besteht darin, daß die Förderleitung 20 im Bereich des teleskopierenden Mastarms 30 aus drei miteinander verbundenen Leitungsabschnitten zusammengesetzt ist, von denen ein erster Leitungsabschnitt 58 starr mit dem Festtell 46 und ein zweiter Leitungsabschnitt 60 starr mit dem Teleskopteil 48 verbunden sind, während ein Zwischenabschnitt 62 an die Teleskopierbewegung des Teleskopteils 48 anpaßbar ist. Der Zwischenabschnitt 62 ist als biegsamer, relativ steifer Schlauch ausgebildet der mit seinem eintrittsseitigen Ende 64 an den Ausgang des ersten Leitungsabschnitts 58 und mit seinem austrittsseitigen Ende 66 an den Eingang des zweiten Leitungsab-Schnitts 60 angeschlossen ist. Der Schlauch 62 weist einen beim Teleskopieren parallel zur Teleskopachse 68 wandemden 180°-Bogen 70 mit konstanter Krümmung auf. Um beim Teleskopieren eine konstante Krümmung des 180°-Bogens einhalten zu können, ist der Schlauch 62 in einer mit dem Festteil 46 über Ausleger 72 starr verbundenen Stützwanne 74 partiell abstützbar. Beim Teleskopieren wandert der 180°-Bogen mit seinem wannenseitigen Ende entlang der Stützwanne und steht mit dem Rest über die Stützwanne über. Auf der Seite des ausfahrbaren Teleskopteils 48 ist zusätzlich eine das austrittsseitige Ende 66 des Schlauchs 62 übergreifende oder umgreifende Anschlagkulisse 76 vorgesehen. Der Schlauch 62 ist dort mit seinem austrittsseitigen Ende 66 über einen 180°-Rohrkrümmer 78 an den Eingang des zweiten Leitungsabschnitts 60 angeschlossen. Zur Stabilisierung des Schlauchs 62 in der Endstellung des ausfahrbaren Teleskopteits 48 trägt das Festteil 46 im Abstand von der Stützwanne 74 eine konvexe Stützkulisse 80 zur Abstützung des 180°-Bogens 70.A special feature of the distribution devices 16 shown in FIGS. 1 and 2 is that the delivery line 20 in the telescopic area Mast arm 30 composed of three interconnected pipe sections is, of which a first line section 58 rigid with the Fixed 46 and a second line section 60 rigid with the telescopic part 48 are connected, while an intermediate section 62 to the telescopic movement of the telescopic part 48 is adaptable. The intermediate section 62 is formed as a flexible, relatively rigid hose with its inlet side End 64 to the output of the first line section 58 and with its exit-side end 66 to the input of the second line section 60 is connected. The tube 62 has one when telescoping parallel to the telescopic axis 68, 180 ° bend 70 with constant Curvature on. To ensure a constant curvature of the To be able to maintain a 180 ° arc, the hose 62 is in one with the fixed part 46 support arm rigidly connected via jib 72 74 partially supportable. When telescoping, the 180 ° arc moves with its tub-side end along the support trough and stands with the rest over the support trough. On the side of the extendable telescopic part 48 is also an overlapping the outlet-side end 66 of the hose 62 or encompassing stop link 76 provided. The hose 62 is there with its outlet end 66 over a 180 ° elbow 78 connected to the input of the second line section 60. to Stabilization of the hose 62 in the end position of the extendable telescopic part 48 carries the fixed part 46 at a distance from the support trough 74 convex support link 80 for supporting the 180 ° bend 70.

Eine weitere Besonderheit besteht darin, daß der erste Leitungsabschnitt 58 eine von der Knickachse 38 des Festteils 46 aus im wesentlichen parallel zu diesem verlaufende Längspartie und eine daran anschließende, schräg zum feststehenden Teleskopteil 46 bis in die Nähe der Stützwanne 74 verlaufende Schrägpartie 84 aufweist, an die der Schlauch 62 mit seinem parallel zur Stützwanne 74 ausgerichteten eintrittsseitigen Ende 64 angeschlossen ist Mit dieser Maßnahme wird erreicht, daß unter dem Grundarm 30 ein Freiraum 86 verbleibt, der es erlaubt, den Verteitermast bei horizontal ausgerichetetem Grundarm 30 kollisionsfrei über das Fahrerhaus 12 zu verdrehen. Zu diesem Zweck entspricht der Abstand zwischen der Drehachse 24 des Mastbocks 26 und der Schrägpartie 84 mindestens dem Abstand zwischen der Drehachse 24 und der Vorderkante 88 des Fahrerhauses 12. Bei den in den Fig. 1 und 2 gezeigten Ausführungsbeispielen ist der feststehende Teil 46 des teleskopierbaren Grundarms 30 länger als die nachgeordneten Mastarme 32 bis 36. Im ausgefahrenen Zustand ist der teleskopierbare Gnundarm bei Ausnutzung des vollen Teleskophubs im Falle der Fig. 1 etwa 1,7 mal so lang wie die nachgeordneten Mastarme. Im Falle der Fig. 2 ist der ausgefahrene Grundarm sogar 2,6 mal so lang wie die nachgeordneten Mastarme.Another special feature is that the first line section 58 one from the articulation axis 38 of the fixed part 46 essentially parallel to this extending longitudinal section and a subsequent, oblique to fixed telescopic part 46 extending into the vicinity of the support trough 74 Inclined portion 84 to which the hose 62 with its parallel to Support pan 74 aligned entry-side end 64 is connected This measure ensures that there is a free space under the base arm 30 86 remains, which allows the spreader mast to be aligned horizontally To rotate the base arm 30 without collision via the cab 12. For this purpose, the distance between the axis of rotation 24 corresponds to the Mastbocks 26 and the inclined section 84 at least the distance between the axis of rotation 24 and the front edge 88 of the cab 12. In the in 1 and 2 embodiments shown is the fixed part 46 of the telescopic base arm 30 longer than the downstream mast arms 32 to 36. When extended, the telescopic Gnund arm is using the full telescopic stroke in the case of FIG. 1 about 1.7 times as much long as the downstream mast arms. 2 is the extended one Basic arm even 2.6 times as long as the downstream mast arms.

Die beschriebenen Autobetonpumpen eignen sich vor allem zum Einziehen von Decken in Hochbauten, wobei der teleskopierbare Grundarm 30 wesentlich dazu beiträgt, daß die Verteilervorrichtung 16 vom Standort des Fahrzeugs 10 aus an eine vorgegebene Stockwerkshöhe anpaßbar ist. Durch die Verwendung eines Schlauchs 62 mit 180°-Bogen 70 ist dem Betonpumpenbauer ein Konstruktionsprinzip an die Hand gegeben, das an beliebige Teleskophübe anpaßbar ist. Er muß dazu lediglich eine ausreichende Schlauchlänge wählen.The truck-mounted concrete pumps described are particularly suitable for pulling in of ceilings in buildings, the telescopic base arm 30 essential contributes to the distribution device 16 from the location of the vehicle 10 is adaptable to a predetermined floor height. Through the The use of a hose 62 with a 180 ° bend 70 is the concrete pump manufacturer given a design principle that can be used with any telescopic hoist is customizable. He only needs a sufficient hose length choose.

Zusammenfassend ist folgendes festzuhalten: Die Erfindung bezieht sich auf eine Verteilervorrichtung für Dickstoffe, insbesondere für Beton. Die Verteilervorrichtung 16 umfaßt einen eine Förderleitung 20 tragenden Verteilermast 18, der mindestens zwei um horizontale Knickachsen 38 bis 44 relativ zueinander oder zu einem Mastbock 26 verschwenkbare Mastarme 30 bis 36 aufweist. Mindestens einer der Mastarme, vorzugsweise der Grundarm 30, ist dabei teleskopierbar. Um an die Teleskopierbewegung angepaßt werden zu können, ist die Förderfeitung im Bereich des teleskopierenden Mastarms aus drei miteinander verbundenen Leitungsabschnitten zusammengesetzt. Ein erster Leitungsabschnitt 58 ist dabei starr mit dem Festteil 46 verbunden, während ein zweiter Leitungsabschnitt 60 starr mit dem ausfahrbaren Teleskopteil 48 verbunden ist. Weiter ist ein Zwischenabschnitt 62 vorgesehen, der mit seinen Enden 64,66 an den ersten und den zweiten Leitungsabschnitt 58,60 angeschlossen und als biegsamer Schlauch ausgebildet ist. Der Schlauch weist erfindungsgemäß einen beim Teleskopieren wandernden 180°-Bogen 70 mit konstanter Krümmung auf.In summary, the following can be stated: The invention relates to a distributor device for thick matter, especially for concrete. The distribution device 16 comprises a placing boom carrying a delivery line 20 18, the at least two about horizontal articulation axes 38 to 44 relative Mast arms 30 to 36 pivotable to one another or to a mast bracket 26 having. At least one of the mast arms, preferably the base arm 30, is telescopic. To be adapted to the telescopic movement To be able to do this is the delivery line in the area of the telescopic mast arm composed of three interconnected pipe sections. A first line section 58 is rigidly connected to the fixed part 46, while a second line section 60 rigid with the extendable telescopic part 48 is connected. An intermediate section 62 is also provided, the one with its ends 64, 66 on the first and the second line section 58,60 connected and is designed as a flexible hose. According to the invention, the hose has a wandering when telescoping 180 ° bend 70 with constant curvature.

Claims (14)

  1. A distributor device for thick matter, especially for concrete, with a concrete distributing boom (18) carrying a conveying conduit (20), which has at least two boom arms (30 to 36) that can be swiveled about horizontal articulation axes (38 to 44) relative to one another or relative to a boom support (26), of which at least one of the boom arms (30) is telescopic and includes a static part (46) and a therewith aligned and relative thereto extendable telescope part (48), wherein the conveying conduit (20) is comprised of multiple interconnected conduit sections (58 to 62) in the area of the telescoping boom arm, of which a first conduit section (58) is preferably rigidly connected with the stationary member (46), a second conduit section (60) is preferably rigidly connected with the extensible telescoping member (48), and an intermediate section (62) is provided which is connects the first and the second conduit sections, thereby characterized, that the intermediate section (62) is a flexible pipe, including a 180° bend (70) with constant curvature that travels as the boom arm telescopes.
  2. Distribution device according to Claim 1, thereby characterized, that the hose (62) is partially supportable against a support wall (74) rigidly connected with the fixed part (46).
  3. Distribution device according to Claim 2, thereby characterized, that the hose (62) projects with its 180° bend (70) beyond the support wall (74).
  4. Distribution device according to Claim 2 or 3, thereby characterized, that the 180° bend (70) wanders with its wall end along the support wall (74) during telescoping.
  5. Distribution device according to one of Claims 2 through 4, thereby characterized, that the support wall (74) is provided spaced apart from the fixed boom part (46).
  6. Distribution device according to one of Claims 2 through 5, thereby characterized, that the fixed part (46) includes a convex support element spaced apart from the support wall (74) for supporting the 180° bend in the retracted configuration of the extendable telescopic part (48).
  7. Distribution device according to one of Claims 1 through 6, thereby characterized, that the first conveyor segment (58) includes a longitudinal part (82) running from the articulation linkage (38) of the fixed part (46) out essentially parallel to the longitudinal direction thereof and a slanted part (84) connected thereto extending diagonally to the fixed boom part (46) until the vicinity of the support wall (74), to which the hose (62) is connected with its inlet end (64) oriented parallel to the support wall (74).
  8. Distribution device according to one of Claims 1 through 7, thereby characterized, that the second conveyor segment (60) includes a pipe running from the articulation linkage (40) of the extendable telescope part (48) essentially parallel to the telescope axis (60), to which the hose (62) is connected with its retraction direction facing end (66), preferably via a 180° curved pipe (78).
  9. Distribution device according to one of Claims 1 through 8, thereby characterized, that the extendable telescope part (48), in the vicinity of its end facing the fixed part (46), carries an abutment linkage (76) extending over or about the outlet end (66) of the hose.
  10. Distribution device according to one of Claims 1 through 9, thereby characterized, that the base arm (30) of the distribution boom (18), which is linked to a boom block (26) rotatable about a vehicle chassis-fixed vertical axis (24), is telescopic.
  11. Distribution device according to one of Claims 1 through 10, thereby characterized, that the fixed part (46) of the telescopic base arm (30) is longer than the subsequent mast arms (32 through 36) of the distribution boom (18).
  12. Distribution device according to one of Claims 1 through 11, thereby characterized, that the telescopic base arm (30) when extended is 1.6 to 3.5 times as long as the subsequent boom arms (32 through 36).
  13. Mobile concrete pump with a distribution device according to one of Claims 1 through 12, thereby characterized, that the distribution boom (18) is provided upon a vehicle chassis (10) of the mobile concrete pump, wherein the conveyor line (20) is connected to the pressure output of a vehicle chassis (10) associated conveyor pump (14).
  14. Mobile concrete pump with a distribution device according to Claim 13, thereby characterized, that the distribution boom (18) with its telescopic base arm (30) is linked to a boom block (26) provided in the vicinity of the driver cabin (12) and rotatable 360° about a vehicle chassis-fixed vertical axis (24), and that the distance between the rotation axis (24) of the boom block (26) and the slanted part (84) of the first conduit segment (58) corresponds to at least the distance between the rotation axes (24) and a front edge (88) of the driver cabin (12).
EP02706752A 2001-03-12 2002-02-28 Distributor device for thick matter Expired - Lifetime EP1290292B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10112086 2001-03-12
DE10112086A DE10112086A1 (en) 2001-03-12 2001-03-12 Distribution device for thick matter
PCT/EP2002/002161 WO2002072978A1 (en) 2001-03-12 2002-02-28 Distributor device for thick matter

Publications (2)

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EP1290292A1 EP1290292A1 (en) 2003-03-12
EP1290292B1 true EP1290292B1 (en) 2004-02-25

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EP02706752A Expired - Lifetime EP1290292B1 (en) 2001-03-12 2002-02-28 Distributor device for thick matter

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US (1) US6983763B2 (en)
EP (1) EP1290292B1 (en)
AT (1) ATE260394T1 (en)
DE (2) DE10112086A1 (en)
ES (1) ES2214469T3 (en)
TR (1) TR200400738T4 (en)
WO (1) WO2002072978A1 (en)

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US6983763B2 (en) 2006-01-10
US20040148814A1 (en) 2004-08-05
TR200400738T4 (en) 2004-07-21
DE10112086A1 (en) 2002-09-26
DE50200253D1 (en) 2004-04-01
ES2214469T3 (en) 2004-09-16
ATE260394T1 (en) 2004-03-15
EP1290292A1 (en) 2003-03-12
WO2002072978A1 (en) 2002-09-19

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