EP3556970A1 - Pompe à béton - Google Patents

Pompe à béton Download PDF

Info

Publication number
EP3556970A1
EP3556970A1 EP19168994.2A EP19168994A EP3556970A1 EP 3556970 A1 EP3556970 A1 EP 3556970A1 EP 19168994 A EP19168994 A EP 19168994A EP 3556970 A1 EP3556970 A1 EP 3556970A1
Authority
EP
European Patent Office
Prior art keywords
telescopic
truck
energy
concrete pump
section
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
EP19168994.2A
Other languages
German (de)
English (en)
Other versions
EP3556970B1 (fr
Inventor
Stefan Peters
Rainer Haberkorn
Martin Pfänder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Mischtecknik GmbH
Original Assignee
Liebherr Betonpumpen 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.)
Filing date
Publication date
Application filed by Liebherr Betonpumpen GmbH filed Critical Liebherr Betonpumpen GmbH
Publication of EP3556970A1 publication Critical patent/EP3556970A1/fr
Application granted granted Critical
Publication of EP3556970B1 publication Critical patent/EP3556970B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes

Definitions

  • the invention relates to a truck-mounted concrete pump with at least one telescopic pivot leg and at least one frame section, wherein the telescopic pivot leg comprises at least one pivoting section and at least one telescopic section, wherein the pivoting section is pivotally hinged to the frame section and wherein at least one energy guiding device is provided which is adapted to at least one Support device of the telescopic pivot leg to provide energy.
  • Telescopic swivel legs are part of the support structure of truck-mounted concrete pumps and discharge the loads of the distributor boom and, if necessary, other loads acting on the truck-mounted concrete pump into the subsoil of the truck-mounted concrete pump.
  • the derived loads can result from the weight of the distributor boom, the concrete load and the load torque of the entire machine.
  • the telescopic pivot legs are connected at one of their ends with a so-called mast block, which can be referred to as a frame section, which functions as a support element of the distribution boom.
  • a so-called mast block which can be referred to as a frame section, which functions as a support element of the distribution boom.
  • the operation of a power management device may be provided.
  • the energy management device can comprise at least one electric line or a cable, at least one pressure fluid line and / or at least one data line to a sensor and / or to a lighting element.
  • the support device may comprise a hydraulic cylinder, a spindle drive and / or other drive components.
  • the energy guiding device may comprise at least one electric line and / or at least one hydraulic line, which are guided by a hydraulic tank or a power supply device in the region of the mast block through the telescopic pivot leg or along the telescopic pivot leg.
  • the energy guiding device serves to supply energy to the supporting device.
  • a difficulty with known from the prior art truck-mounted concrete pumps is that telescopic pivot legs for a have a vertical pivot axis in the region of the connection to the mast block and on the other hand one or several times telescoping.
  • the energy management device for supplying the support device must be able to follow this degree of freedom of movement of the telescopic pivot leg.
  • Installed horizontally means that the joint axis of the energy supply chain or the energy management device is installed horizontally relative to the machine.
  • the energy chain can thus form a radius in the vertical plane.
  • a truck-mounted concrete pump with at least one telescopic pivot leg and at least one frame section wherein the telescopic pivot leg comprises at least one pivoting section and at least one telescopic section.
  • the telescopic pivot leg comprises at least one pivoting section and at least one telescopic section.
  • two or more telescopic sections are part of a corresponding telescopic pivot leg.
  • the pivot portion is pivotally hinged to the frame portion and that at least one energy guiding device is provided which is adapted to provide at least one supporting device of the telescopic pivot leg with energy.
  • the energy guiding device may include, for example, hydraulic lines, by means of which pressurized fluid can be supplied to the supporting device and along the telescopic pivot leg.
  • the energy guiding device has at least one pivot axis arranged parallel to the pivot axis of the pivoting section about which the energy guiding device is pivotable.
  • the idea according to the invention therefore consists in utilizing the mobility of energy guiding chains or energy guiding devices in a plane by rotation through 90 ° in such a way that a single energy guiding chain compensates for both the pivoting movement and the telescoping of a telescopic pivoting leg.
  • the energy guiding device or the energy guiding chain follows both movements. With skillful execution of energy management device with wide chain links this can be carried out in the ideal case without further guidance and without further support elements.
  • the energy management device itself takes over the hose / cable management in the processing area. So far, separate fasteners had to be provided for this purpose, which allow a corresponding deformation. According to the invention, a better guidance is possible and the guided cables / hoses are also better protected. This also enables a more compact design of the energy-conducting device. This can therefore have a smaller width and / or height extension. This makes it possible, in turn, the telescopic cross-section the telescopic pivot leg wider, which allows a better static design.
  • the inventive design of the truck-mounted concrete pump is characterized by a particularly high degree of simplicity without sacrificing their functionality. Furthermore, the dimensions of energy management devices in this type of reorientation ideally coincide with the available installation space in the telescopic pivot leg.
  • the energy guiding device is an energy guiding chain.
  • This may have cavities and / or recesses in a known manner, within which energy-conducting elements are arranged, guided and / or protected as energy-conducting devices such as, for example, electric lines, compressed-air lines and / or hydraulic lines of the energy-carrying chain.
  • the energy guiding device extends in a pivoted-in and / or telescoping state of the telescopic pivot leg towards farther back or farther forward with respect to the truck-mounted concrete pump than the telescopic pivot leg.
  • the extension or positioning of the energy guiding device can thus be selected such that the freedom of movement of the telescopic pivot leg is kept as large as possible.
  • the energy guiding device may extend farther back and, in the case of a rear telescopic pivot leg, further forward.
  • the pivoted state of the telescopic pivot leg means in the present case a state in which the telescopic pivot leg is positioned substantially parallel to the longitudinal axis of the truck-mounted concrete pump and usually for the method and not for supporting the truck-mounted concrete pump.
  • the einteleskop Of the telescopic pivot leg of the word meaning following a state in which the telescopic portion of the telescopic pivot leg in a einteleskop striving state, that is in a state in which the telescopic pivot leg has a small or its smallest longitudinal extent.
  • the energy guiding device extends in a swiveled and / or telescoped state of the telescopic pivot leg to further inside relative to the truck-mounted concrete pump as the telescopic pivot leg.
  • provision can be made, in particular, for an energy guiding device designed as an energy guiding chain to be arranged at least partially further inwards and / or farther back than the telescopic pivoting leg.
  • the energy management device can be particularly easily arranged to not limit the freedom of movement of the telescopic pivot leg.
  • the pivoted state of the telescopic pivot leg is a state in which the telescopic pivot leg is not arranged parallel to the concrete pump, or is angled for supporting in a working state of the truck concrete pump to this.
  • the telescoped state of the telescoping rocker leg corresponds to a state in which the telescoping section and the frame section of the telescoping rocker leg are adjusted relative to each other so that the telescoping rocker leg is extended or in a state of greatest or not least length.
  • the energy guiding device extends at least partially within the telescope section.
  • the telescopic section itself can be formed at least in sections as a hollow profile element or have a hollow profile, within which the energy guiding device can be arranged at least partially.
  • the energy-conducting device can be protected by the walls of the telescopic section from damage and / or dirt.
  • the telescopic section may have different profile cross-sections along its longitudinal axis so as to be formed at least in sections for receiving the energy-conducting device.
  • the energy guiding device is a single or continuous connection of the frame section to the telescope section.
  • a single or continuous connection is to be understood a similar connection, which is thus constructed over the entire connection length between the frame section and telescopic section or support device similar and their individual sections do not differ from the other sections along the length of the connection.
  • a continuous connection is understood, which extends from the frame portion to the telescopic section or to the support device and these components alone, that is, without further, possibly different connection sections for energy transfer from each other.
  • the energy guiding device at least partially surrounds the telescope section. This may be the case in particular at a longitudinal end of the telescope section. In the present case, encompassing means that the telescope section is arranged at least partially between the energy-conducting device.
  • the energy guiding device is arranged in the region of the lower or the upper half of the telescopic section. It is also conceivable that the energy management device in the middle or is arranged generally eccentrically relative to the vertical of the telescopic section.
  • the energy guiding device is at least partially disposed on an outer side of the telescopic section, which is directed towards the truck-mounted concrete pump or away from the truck-mounted concrete pump and / or that at least one front telescopic pivot leg and at least one rear telescopic pivot leg are provided, in particular via a common Pivot axis are pivotable relative to the further structure of the truck-mounted concrete pump.
  • a common pivot point for the front and rear pivot spar or for the corresponding telescopic pivot leg can be provided.
  • FIGS. 1a and 1b show schematic plan views of a support portion of a truck-mounted concrete pump according to the invention with at least one telescopic pivot leg.
  • FIG. 1a shows an embodiment of the truck-mounted concrete pump with a total of two telescopic pivot legs 1
  • FIG. 1b shows an embodiment with a total of four telescopic pivot legs 1, 1 ', of which two can be aligned to the front and two backwards and arranged in pairs on the truck concrete pump.
  • any number of corresponding telescopic pivoting legs 1 can be provided, wherein preferably two or four telescopic pivoting legs are provided.
  • the telescopic pivot leg 1 or the telescopic pivot legs 1 can be pivoted to a frame section 4, wherein the frame section 4 can be a girder with a tank or with a power supply device.
  • the frame portion 4 may also be different from the mast block and / or describe a frame 6a or frame part, which is located further back relative to the mast block.
  • the power supply can be configured to supply a support device 6 of the telescopic pivot leg 1 with energy or electrical current and / or pressurized fluid.
  • the telescopic pivot leg 1 comprises at least one telescopic section 3, which is mounted telescopically or displaceably in a pivoting section 2. Also conceivable is an embodiment in which the telescopic pivot legs 1 comprise a plurality of telescoping sections 3 mounted one inside the other.
  • the telescopic pivot leg 1 is coupled via at least one energy guide device 5 to the frame section 4, the frame 6a and / or other sections of the further structure of the truck-mounted concrete pump for energy transmission.
  • one end of the energy-conducting device 5 does not have to be fastened to the frame section 4, but may alternatively be fastened further back, for example, to the frame 6a.
  • the energy guiding device 5 is adapted to supply at least one supporting device 6 of the telescopic pivot leg 1 with energy, in particular with electric current and / or hydraulic energy.
  • the supporting device 6 may be arranged on an end region of the telescopic pivot leg 1 and there in particular on an end region of a telescopic section 3.
  • the support device 6 can be moved vertically or in the direction of a substrate of the truck-mounted concrete pump and support the truck-mounted concrete pump against the ground.
  • the energy guiding device 5 has a pivot axis which is arranged parallel to the pivot axis of the pivoting section 2. These axes are in the FIGS. 1a to 2b perpendicular to the drawing plane.
  • the pivoting of the energy guiding device 5 may be a different type of pivoting than in the pivoting of the pivoting portion 2 of the telescopic pivot leg 1. While the pivoting of the pivoting section 2 to a fixed, defined by the position of the frame portion 4 and the pivot portion 2 pivot axis , The pivot axis of the power guiding device 5 may be positioned differently depending on the pivot state due to the flexible design of the power management device 5.
  • the energy guiding device 5 can be designed to be pivotable in a horizontal plane, which is parallel to the pivoting plane of the pivoting section 2.
  • These levels correspond essentially to the drawing level.
  • the information on the parallel or vertical arrangement of the pivot axes or pivot levels are not interpreted narrowly and may also include different angular positions within the functionality of the features described.
  • FIGS. 2a and 2 B show schematic views of two embodiments of known from the prior art truck-mounted concrete pumps, in which a power management device 5 is designed in two or more parts.
  • FIG. 2a shows an embodiment with two telescopic pivot legs 1
  • FIG. 2b an embodiment with four telescopic pivot legs 1, 1 'shows.
  • a tube 51 connects the telescopic pivot leg 1 with the frame portion 4 and allows pivoting of the two components to each other.
  • the telescoping of the telescopic section 3 relative to the pivoting section 2 is not made possible by the hose 51.
  • an energy guiding chain 52 is provided, which connects or couples only the pivoting section 2 with the telescopic section 3 in a displaceable manner.
  • the energy guiding chain 52 known from the prior art can be shorter and oriented differently than the energy guiding device 5 provided according to the invention.
  • the energy transmission chain 52 and the hose 51 must additionally be coupled to each other via a corresponding connection for the power supply.
  • a tube 53 may be provided in the coupling region of the energy guide chain 52 and the tube 51.
  • pivoting legs 1 are each shown at the top in a pivoted and retracted state and at the bottom in a swung-out and extended state.
  • FIGS. 3a and 3b show lateral schematic views of telescopic pivot legs.
  • FIG. 3a shows an embodiment known from the prior art, in which a separate energy transmission chain 52 is provided for the transmission of energy between a portion of the pivoting portion 2 and a portion of the telescopic portion 3.
  • this energy guiding chain 52 is not suitable for carrying a power supply over the pivoting area between the frame section 4 and allow the pivot portion 2.
  • a piping or a tubing is provided according to the prior art, which may comprise at least one tube 53 and / or at least one tube 51, which are different from the energy guide chain 52.
  • a continuous energy management device 5 goes out of the in FIG. 3b shown embodiment of the invention, where the power guiding device 5 is shown lying in a horizontal plane or from the side. This makes it possible to transmit energy by means of the energy guide device 5 both in different pivot positions and in different telescopic states of the telescopic pivot leg 1, without the need of in FIG. 3a shown tube 51 and the tube 53.
  • a pivot axis 54 is shown about which the telescopic pivot leg 1 is pivotable about the remaining structure of the truck-mounted concrete pump.
  • FIGS. 4a and 4b show cross sections of a known from the prior art telescopic pivot leg 1 ( FIG. 4b ) and a telescopic pivot leg 1 according to the invention ( FIG. 4a ).
  • the energy management device 5 is arranged substantially horizontally in accordance with the invention and can be coupled in a lower region of the telescopic section 3 with this and / or arranged on this.
  • the telescopic section 3 may be designed in the shape of a hollow profile, it being conceivable that the energy guiding device 5 extends at least partially within the hollow profile of the telescopic section 3.
  • the energy guiding device 5 can surround the telescopic section 3 and thus be arranged at least partially on a side facing away from the truck concrete pump, as shown in FIG FIG. 4a is shown.
  • the energy-conducting device 5 ' can not encompass the telescopic section 3 and can thus be arranged at least partially on a side of the telescopic section 3 facing the truck-mounted concrete pump.
  • the side facing away from the truck concrete pump is in the FIG. 4a According to the left side of the telescopic section 3.
  • the telescopic section 3 and / or the pivoting section 2 may be formed at least in sections as in particular edgewise C-profile or C-shaped.
  • FIG. 4b shows a known from the prior art embodiment of the telescopic pivot leg 1, wherein the energy-guiding device 5 is arranged curved in a vertical plane and wherein the two legs of the energy-conducting device 5 at least partially above one another instead of as provided according to the invention can be arranged side by side.
  • the telescopic section 3 In order to accommodate the relatively broadly executed energy execution device 5 within the pivoting section 2, the telescopic section 3 must be made sufficiently narrow. In contrast, according to the invention, the telescopic section 3 can be made wider and thus more stable. In contrast, according to the state of the art, only a very narrow energy guiding device 5 is allowed, whereby a hose / cable package fixed thereto is applied more strongly and, in turn, disadvantageously large bending radii are required.
  • FIG. 5 illustrated mobile concrete pump 1a consists of a chassis 2a, which is formed by a conventional truck with cab 3a, front axle 4a, a rear double axle 5a and connecting these components 6a frame.
  • a distribution boom 7a is shown, which has in the embodiment shown four mast members 8a, which are connected by joints 9a and can be adjusted by hydraulic means 10a against each other.
  • the strongest, lower mast member 8a is connected to a mast block 11a, which in turn is mounted in the front third of the distance between the front axle 4a and the double axle 5a adjacent to the front axle directly on the chassis 2a.
  • the distributor boom 7a is rotatable about a vertical axis 12a, so that, by cooperation with the joints 9a of the distributor boom 7a, any point within the radius which results through the distributor boom 7a in its extended configuration can be reached.
  • a charging box 13a At the rear end of the chassis 2a, there is disposed a charging box 13a through which concrete is fed to a solids pump 14a which pumps the concrete through a conduit 15a to the mast block 11a and through it to a hose disposed on the distribution mast 7a so as to pass through the charging box 13a introduced concrete at the free end of the distributor boom 7a emerges from the hose and can be processed there.
  • two front telescopic pivot legs or support legs 16a and two rear pivot legs or support legs 17a are arranged, which serve to stabilize the mobile concrete pump 1a during the pumping operation, so that a pivoting of the distributor boom 7a without endangering personnel or material is possible.
  • the front support leg 16a and the rear support leg 17a respectively disposed on one side of the chassis 2a have, in the example, a common vertical pivot axis 18a about which the pivot support associated with the front support leg 16a and the rear support leg 17a is rotated, the front support legs 16a and rear Support legs 17a are attached to a mast block 11a associated pivot bearing.
  • the front support leg 16a is formed by a pivotable about the pivot axis 18a guide tube 22a.
  • a sliding tube 23a is slidably mounted, which in the in Fig. 5 shown rest position of the front support leg 16a projecting rearwardly through the guide tube 22a, so that the arranged on the slide tube 23a support leg 24a is in the rest position on the chassis 2a in an available gap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Reciprocating Pumps (AREA)
EP19168994.2A 2018-04-18 2019-04-12 Pompe à béton Active EP3556970B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018109224.5A DE102018109224A1 (de) 2018-04-18 2018-04-18 Autobetonpumpe

Publications (2)

Publication Number Publication Date
EP3556970A1 true EP3556970A1 (fr) 2019-10-23
EP3556970B1 EP3556970B1 (fr) 2023-05-10

Family

ID=66175273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19168994.2A Active EP3556970B1 (fr) 2018-04-18 2019-04-12 Pompe à béton

Country Status (3)

Country Link
EP (1) EP3556970B1 (fr)
DE (1) DE102018109224A1 (fr)
ES (1) ES2950787T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4083348A1 (fr) * 2021-04-30 2022-11-02 Liebherr-Mischtechnik GmbH Dispositif d'appui pour une pompe à béton sur camion

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239103A5 (en) * 1973-07-23 1975-02-21 Fontan Jean Control for telescopic jib of crane on vehicle - jib may be telescoped and simultaneously pivoted by ram
GB2087813A (en) * 1980-11-07 1982-06-03 Harnischfeger Corp Mobile crane having telescoping outriggers and power operated screw means for same
EP0308758A2 (fr) * 1987-09-25 1989-03-29 Kidde Industries Inc. Système pour porter et guider des conduites pour machines à flèches extensible et rétractile
DE19805359A1 (de) * 1998-02-12 1999-08-19 Putzmeister Ag Fahrbare Arbeitsmaschine mit Stützbeinen und Achsarretierung
EP1170245A1 (fr) * 2000-07-05 2002-01-09 Deere & Company Châssis de fixation et flèche téléscopique avec châssis de fixation
DE102016104653A1 (de) * 2016-03-14 2017-09-14 Schwing Gmbh Doppelt teleskopierbare Bogenabstützung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29511528U1 (de) * 1995-07-17 1995-09-28 Palfinger Ag, Bergheim Teleskopausleger mit einer Schlauchführung
DE29811097U1 (de) * 1998-06-20 1998-08-20 Waitzinger Baumaschinen Vertrieb und Service GmbH, 89278 Nersingen Fahrbare Betonpumpe
DE202014105136U1 (de) * 2014-10-27 2014-11-06 Igus Gmbh Leitungsführungsanordnung für einen Mehrfach-Teleskopausleger mit mehreren Schubstücken

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239103A5 (en) * 1973-07-23 1975-02-21 Fontan Jean Control for telescopic jib of crane on vehicle - jib may be telescoped and simultaneously pivoted by ram
GB2087813A (en) * 1980-11-07 1982-06-03 Harnischfeger Corp Mobile crane having telescoping outriggers and power operated screw means for same
EP0308758A2 (fr) * 1987-09-25 1989-03-29 Kidde Industries Inc. Système pour porter et guider des conduites pour machines à flèches extensible et rétractile
DE19805359A1 (de) * 1998-02-12 1999-08-19 Putzmeister Ag Fahrbare Arbeitsmaschine mit Stützbeinen und Achsarretierung
EP1170245A1 (fr) * 2000-07-05 2002-01-09 Deere & Company Châssis de fixation et flèche téléscopique avec châssis de fixation
DE102016104653A1 (de) * 2016-03-14 2017-09-14 Schwing Gmbh Doppelt teleskopierbare Bogenabstützung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4083348A1 (fr) * 2021-04-30 2022-11-02 Liebherr-Mischtechnik GmbH Dispositif d'appui pour une pompe à béton sur camion

Also Published As

Publication number Publication date
ES2950787T3 (es) 2023-10-13
DE102018109224A1 (de) 2019-10-24
EP3556970B1 (fr) 2023-05-10

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