EP0738362B1 - Concrete pumping device - Google Patents

Concrete pumping device Download PDF

Info

Publication number
EP0738362B1
EP0738362B1 EP95938438A EP95938438A EP0738362B1 EP 0738362 B1 EP0738362 B1 EP 0738362B1 EP 95938438 A EP95938438 A EP 95938438A EP 95938438 A EP95938438 A EP 95938438A EP 0738362 B1 EP0738362 B1 EP 0738362B1
Authority
EP
European Patent Office
Prior art keywords
segment
segments
end sections
supporting arm
tubular
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
EP95938438A
Other languages
German (de)
French (fr)
Other versions
EP0738362A1 (en
Inventor
Gerhard Hudelmaier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0738362A1 publication Critical patent/EP0738362A1/en
Application granted granted Critical
Publication of EP0738362B1 publication Critical patent/EP0738362B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04Devices for both conveying and distributing
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04Devices for both conveying and distributing
    • E04G21/0418Devices for both conveying and distributing with distribution hose
    • E04G21/0436Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/0318Processes
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/8807Articulated or swinging flow conduit

Definitions

  • the invention relates to a device for pumping of concrete, with a cantilever in a working position Support arm for positioning the cable end one Pump line, the support arm having support arm segments, on each of which at least one pipe segment as a component the pump line is arranged and at least one of the Support arm segments from a pushed together Starting position in at least one telescopic position is transferable in the length of the telescopic Support arm segment greater than the length of each assigned pipe segments.
  • Such devices for pumping concrete are e.g. out known from DE-U-9212417. You will e.g. in building construction, especially in the manufacture of high-rise buildings, bridges and the like used where necessary, large Convey quantities of concrete quickly to great heights.
  • Such Devices are mostly mounted on truck chassis and leave in the working position delivery heights of approx. 60 m to.
  • the support arm By dividing the support arm into support arm segments the support arm can be disassembled or folded for transport.
  • To the Increasing the head is one of the support arm segments telescopic.
  • a Pipe segment carried by the vehicle for extension In the telescoped state, a Pipe segment carried by the vehicle for extension inserted, whereby the pump line and thus the Head can be increased.
  • it turns out Extending the pump line has so far been cumbersome.
  • the object of the invention is therefore a device of to improve the type mentioned in such a way that the Head can be increased quickly and easily.
  • one of the support arm segments at least one feed device, the as a movable bracket, for feeding the at least an additional pipe segment is provided, for which the Feeder from a first position in which the Additional pipe segment outside of that of the pipe segments occupied volume is arranged in a second Position is transferable, in which at least one End section of the additional pipe segment with at least one End section of one of the pipe segments is aligned so that the Pump line essentially from the pipe segments and the Additional pipe segment can be formed.
  • This solution is simple and enables one device to create concrete that can be easily pumped Increase the amount of funding in a way that saves time leaves.
  • At least between two Pipe segments can be arranged a separation point, so that in one of the telescopic positions of the telescopic Support arm segment the end portions forming the separation point of the assigned pipe segments are spaced from one another, such that the additional pipe segment between the End sections forming the separation point can be positioned. On in this way, the additional pipe segment between two Insert pipe segments.
  • a End section of the additional pipe segment with an end section of a pipe segment in the axial direction always essentially are at the same height as the assigned end section. This allows you to insert the Additional pipe segment between two pipe segments required Reduce movements.
  • bracket on the telescopic Segment be arranged.
  • the longitudinal axis of the additional pipe segment essentially parallel to the longitudinal extent of the telescopic segment runs. In this way, the number of required movements to position the Reduce the additional pipe segment between two pipe segments. It can prove beneficial if the Pivot axis of the bracket substantially parallel to Longitudinal extension of the telescopic arm segment is arranged. This allows the additional pipe segment with a simple pivoting movement of the bracket between the two Pipe segments are positioned.
  • the pivot axis of the Bracket essentially perpendicular to the longitudinal extension of the telescopic support arm segment can be arranged and the Bracket essentially transverse to the longitudinal extension of the telescopic support arm segment slidably arranged his.
  • it can Additional pipe segment by simply tilting and Position longitudinally between two pipe segments.
  • the Bracket have a spring that the additional pipe segment in one against the telescopic direction when transferring the telescopic support arm segment of his collapsed position in one of its telescoped Prestressed positions.
  • a drive can be provided with which the additional pipe segment is movable against the action of the spring.
  • a telescopic drive is provided with which the telescopic segment of its pushed into the telescopic position and is convertible back, which changes the structure of the Device can be simplified. It can be particularly cheap turn out to be when the telescopic drive drives forms for the additional pipe segment.
  • the end sections forming the separation point Quick fasteners can be connected.
  • the end sections of the Pipe segments and the associated end sections of the Additional pipe segment can be connected with quick-release fasteners. This allows the construction of the device to be considerable simplify.
  • the quick release end sections as Claw coupling are formed, with an end portion with pivotally mounted claws is provided by a closed position, in which the claws a paragraph of the associated, other end section reach behind and thereby both end sections together are connected, can be moved into an open position, in which the claws release the heel and the End sections are separable.
  • the claws spring loaded and by the springs in be biased to its closed position.
  • the claw coupling can be operated remotely spring-loaded claws in an advantageous development the invention fluidically, preferably hydraulically by the closed position can be converted into the open position his.
  • a cylindrical ring-shaped projection is recorded in the assembled Condition of the pipe segments.
  • a cylindrical ring-shaped sealing element can be arranged which the cylindrical projection is supported on the front such that the two end sections are liquid-tight are interconnected.
  • the support arm segments articulated with each other by joints be connected. This allows the support arm design foldable. It can be an advantage if the pipe segments are articulated in the area of the joints are interconnected.
  • the support arm segments can be transferred into a transport position in which they are essentially parallel to each other are arranged.
  • the support arm segments can be in their Transport position may be arranged one on top of the other.
  • the pipe segments on the associated support arm segments be attached.
  • it can telescopic support arm segment an extendable sub-segment and have a fixed subsegment, the pipe segment is attached to the extendable sub-segment that is slidably received in the fixed subsegment. It is also conceivable that the pipe segment on the fixed Sub-segment is attached.
  • the Concrete pump is arranged on a chassis.
  • the assembly of the Show device on a truck chassis.
  • Pump line end a hose-like extension to Distributing the pumped concrete can have.
  • the telescopic segment is transferred into its telescopic position and then the feed device from its rest position in their feed position is transferred.
  • Fig. 1 shows the device 1 for pumping concrete on a truck chassis 2 is firmly mounted. At the back the chassis 2 is a pump drive 3. Off the pump drive open pipe segments 4, which together a Form pump line 5.
  • the tube segments 4 are each on support arm segments 6 attached.
  • the support arm segments 6 are each via joints 7 articulated together.
  • the pipe segments are also 4 articulated to one another at the joints 7.
  • the support arm segments 6 for Transport of the device 1 folded onto each other.
  • a Working position form the support arm segments 6 one cantilevered support arm 8, the one via a swivel 9 vertical axis rotatably mounted on the truck chassis 2 is.
  • Transferring the support arm 8 from his Transport position in its working position is done by means of several hydraulic cylinders 10. If the device 1 is in its working position Line end 11 in the pump line 5 at the end of the widest cantilever arm segment 6.
  • One of the support arm segments 6 is a telescopic support arm segment 12, which is an extendable Has subsegment 13 and a fixed subsegment 14.
  • the Extendable subsegment 13 is telescopic in the axial direction extendable stored in the fixed sub-segment.
  • the Telescoping the telescopic support arm segment 12 takes place via an indicated, hydraulic Telescopic drive 15.
  • FIG. 2 is located parallel to the pipe segment 4 of the telescopic support arm segment 12 an additional pipe segment 16.
  • This additional pipe segment 16 is from one on the telescopic support arm segment 12 attached feed device 17 held.
  • the Feed device 17 has a, about an axis parallel to Longitudinal extension of the telescopic support arm segment 12 extending axis of rotation pivotable bracket 18.
  • In the Bracket 18 is the additional pipe segment 16 in the direction of it Longitudinal axis axially displaceable.
  • a indicated thickened spring 19 shown in the holder 18 spans the additional pipe segment 16 in the direction of Telescopic process when transferring the telescopic Support arm segment 12 from its collapsed Starting position in its telescopic position.
  • the Bracket 18 is from a first position in which the Additional pipe segment 16 outside of the pipe segments 4 occupied volume is arranged in a second Position transferable, in which at least one end section 20 of the additional pipe segment 16 with at least one End section 21 of one of the pipe segments 4 is aligned. From Fig. 3, the holder 18 can be removed in its second position. In addition, it can be seen in FIGS. 2 and 3 that in the direction the longitudinal extent of the telescopic support arm segment 12 always an end portion 20 of the additional pipe segment 16 in essentially level with one of the end sections 21 the pipe segments 4 is arranged. 2 and 3 can also be seen that between the near Additional pipe segment 16 arranged pipe segments 4 a Separation point 22 is located.
  • the claws 24 can be represented by an indicated Hydraulic device can be operated hydraulically.
  • the end portions 20 of the additional pipe segment 16 are corresponding to the dog clutch 23 designed such that the Additional pipe segment 16 between two associated with each other End sections 20 of the pipe segments 4 used and can be coupled.
  • telescopic support arm segment 12 can telescopic support arm segment 12 in a telescopic Transfer position in which the additional pipe segment 16 between that attached to the extendable sub-segment 13 Pipe segment 4 and attached to the fixed sub-segment 14 Position pipe segment 4.
  • the telescopic Support arm segment 12 can be telescoped in several Positions are locked.
  • Device 1 is the additional pipe segment 16 about an axis perpendicular to the longitudinal extent of the telescopic Support segment 12 pivotable in the feed device 17th held.
  • the feed device 17 allows it above addition, the additional pipe segment 16 perpendicular to Longitudinal extension of the telescopic support arm segment 12 move.
  • the bracket 18 from its first Position transferred to the second position in which the End sections 20 of the additional pipe segment 16 with the End portions 21 of the spaced tube segments 4 are in line. Then the telescoped Support arm segment 12 in a second telescopic position transferred, in which the distance between the two end portions 21st the spaced apart pipe segments 4 is smaller than the distance of the end portions 20 of the auxiliary pipe segment 16, whereby the spaced tube segments 4 and the additional pipe segment 16 are inserted into each other.
  • Embodiment of the device 1 according to the invention takes place the attachment of the additional pipe segment 16 to the same Way, but with the difference that the additional pipe segment 16 not by a pivoting movement between the two spaced apart pipe segments 4 is arranged, but by moving it transversely to the longitudinal extent of the telescopic support arm segment 12 and a subsequent Tilt about an axis perpendicular to the longitudinal extension of the telescopic support arm segment 12.
  • the additional pipe segment 16 are in both Embodiments first of all from the end sections formed claw clutches 23 opened hydraulically. Then the telescopic support arm segment 12 returned to its first telescopic position, whereby the end portions 20 and 21 are separated from each other be separated. The force of the spring 19 causes that the end sections 20 and 21 of the additional pipe segment 16 and of the tubular segment 4 arranged on the fixed partial segment 14 be spaced from each other. Now that can Feed device 17 again in its first position are returned in which the additional tube segment 16 outside the volume occupied by the pipe segments 4 is arranged.
  • the device 1 according to the invention allows comparatively small dimensions, a large delivery head to achieve.

Landscapes

  • 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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Pumpen von Beton, mit einem in einer Arbeitsstellung auskragenden Tragarm zum Positionieren des Leitungsendes einer Pumpenleitung, wobei der Tragarm Tragarmsegmente aufweist, an denen jeweils zumindest ein Rohrsegment als Bestandteil der Pumpenleitung angeordnet ist und zumindest eines der Tragarmsegmente von einer zusammengeschobenen Ausgangstellung in wenigstens eine teleskopierte Stellung überführbar ist, in der die Länge des teleskopierbaren Tragarmsegmentes größer als die Länge der jeweils zugeordneten Rohrsegmente ist.The invention relates to a device for pumping of concrete, with a cantilever in a working position Support arm for positioning the cable end one Pump line, the support arm having support arm segments, on each of which at least one pipe segment as a component the pump line is arranged and at least one of the Support arm segments from a pushed together Starting position in at least one telescopic position is transferable in the length of the telescopic Support arm segment greater than the length of each assigned pipe segments.

Derartige Vorrichtungen zum Pumpen von Beton sind z.B. aus der DE-U-9212417 bekannt. Sie werden z.B. im Hochbau, insbesondere bei der Herstellung von Hochhäusern, Brücken und dergleichen verwendet, wo es erforderlich ist, große Mengen Beton schnell in große Höhen zu fördern. Derartige Vorrichtungen sind zumeist auf LKW-Fahrgestellen montiert und lassen in der Arbeitsstellung Förderhöhen von ca. 60 m zu. Durch die Aufteilung des Tragarmes in Tragarmsegmente ist der Tragarm zum Transport zerleg oder faltbar. Um die Förderhöhe zu vergrößern, ist eines der Tragarmsegmente teleskopierbar. Im teleskopierten Zustand wird ein am Fahrzeug mitgeführtes Rohrsegment zur Verlängerung eingefügt, wodurch sich die Pumpenleitung und somit die Förderhöhe vergrößern läßt. Jedoch erweist sich das Verlängern der Pumpenleitung bislang als umständlich.Such devices for pumping concrete are e.g. out known from DE-U-9212417. You will e.g. in building construction, especially in the manufacture of high-rise buildings, bridges and the like used where necessary, large Convey quantities of concrete quickly to great heights. Such Devices are mostly mounted on truck chassis and leave in the working position delivery heights of approx. 60 m to. By dividing the support arm into support arm segments the support arm can be disassembled or folded for transport. To the Increasing the head is one of the support arm segments telescopic. In the telescoped state, a Pipe segment carried by the vehicle for extension inserted, whereby the pump line and thus the Head can be increased. However, it turns out Extending the pump line has so far been cumbersome.

Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs genannten Art derart zu verbessern, daß sich die Förderhöhe schnell und einfach vergrößern läßt.The object of the invention is therefore a device of to improve the type mentioned in such a way that the Head can be increased quickly and easily.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß an einem der Tragarmsegment wenigstens eine Zuführeinrichtung, die als bewegliche Halterung , zum Zuführen des zumindest einen Zusatzrohrsegmentes vorgesehen ist,wozu die Zuführeinrichtung von einer ersten Stellung, in welcher das Zusatzrohrsegment außerhalb des von den Rohrsegmenten eingenommenen Volumens angeordnet ist, in eine zweite Stellung überführbar ist, in welcher zumindest ein Endabschnitt des Zusatzrohrsegmentes mit zumindest einem Endabschnitt eines der Rohrsegmente fluchtet, so daß die Pumpenleitung im wesentlichen aus den Rohrsegmenten und dem Zusatzrohrsegment bildbar ist.The object is achieved in that one of the support arm segments at least one feed device, the as a movable bracket, for feeding the at least an additional pipe segment is provided, for which the Feeder from a first position in which the Additional pipe segment outside of that of the pipe segments occupied volume is arranged in a second Position is transferable, in which at least one End section of the additional pipe segment with at least one End section of one of the pipe segments is aligned so that the Pump line essentially from the pipe segments and the Additional pipe segment can be formed.

Diese Lösung ist einfach und ermöglicht es, eine Vorrichtung zum Pumpen von Beton zu schaffen, mit der sich auf einfache Weise und geringem Zeitaufwand die Förderhöhe vergrößern läßt.This solution is simple and enables one device to create concrete that can be easily pumped Increase the amount of funding in a way that saves time leaves.

Erfindungsgemäß kann darüber hinaus zumindest zwischen zwei Rohrsegmenten eine Trennstelle angeordnet sein, so daß in einer der teleskopierten Stellungen des teleskopierbaren Tragarmsegmentes die die Trennstelle bildenden Endabschnitte der zugeordneten Rohrsegmente voneinander beabstandet sind, derart, daß das Zusatzrohrsegment zwischen die die Trennstelle bildenden Endabschnitte positionierbar ist. Auf diese Weise läßt sich das Zusatzrohrsegment zwischen zwei Rohrsegmente einsetzen.According to the invention, moreover, at least between two Pipe segments can be arranged a separation point, so that in one of the telescopic positions of the telescopic Support arm segment the end portions forming the separation point of the assigned pipe segments are spaced from one another, such that the additional pipe segment between the End sections forming the separation point can be positioned. On in this way, the additional pipe segment between two Insert pipe segments.

In einer vorteilhaften Weiterbildung der Erfindung, kann ein Endabschnitt des Zusatzrohrsegmentes mit einem Endabschnitt eines Rohrsegmentes in Achsrichtung immer im wesentlichen auf gleicher Höhe des zugeordneten Endabschnittes liegen. Dadurch lassen sich die zum Einbringen des Zusatzrohrsegmentes zwischen zwei Rohrsegmenten benötigten Bewegungen reduzieren.In an advantageous development of the invention, a End section of the additional pipe segment with an end section of a pipe segment in the axial direction always essentially are at the same height as the assigned end section. This allows you to insert the Additional pipe segment between two pipe segments required Reduce movements.

Zudem ist es vorteilhaft, wenn die Zuführeinrichtung als schwenkbare Halterung für das Zusatzrohrsegment ausgebildet ist. It is also advantageous if the feed device as swivel bracket designed for the additional pipe segment is.

Darüberhinaus kann die Halterung an dem teleskopierbaren Segment angeordnet sein.In addition, the bracket on the telescopic Segment be arranged.

In einer ersten Ausführungsform kann es von Vorteil sein, wenn die Längsachse des Zusatzrohrsegmentes im wesentlichen parallel zur Längserstreckung des teleskopierbaren Segmentes verläuft. Auf diese Weise läßt sich die Zahl der erforderlichen Bewegungen zum Positionieren des Zusatzrohrsegmentes zwischen zwei Rohrsegmente reduzieren. Dabei kann es sich als günstig erweisen, wenn die Schwenkachse der Halterung im wesentlichen parallel zur Längserstreckung des teleskopierbaren Tragarmsegmentes angeordnet ist. Dadurch kann das Zusatzrohrsegment mit einer einfachen Schwenkbewegung der Halterung zwischen die beiden Rohrsegmente positioniert werden.In a first embodiment, it can be advantageous if the longitudinal axis of the additional pipe segment essentially parallel to the longitudinal extent of the telescopic segment runs. In this way, the number of required movements to position the Reduce the additional pipe segment between two pipe segments. It can prove beneficial if the Pivot axis of the bracket substantially parallel to Longitudinal extension of the telescopic arm segment is arranged. This allows the additional pipe segment with a simple pivoting movement of the bracket between the two Pipe segments are positioned.

In einer zweiten Ausführungsform kann die Schwenkachse der Halterung im wesentlichen senkrecht zur Längserstreckung des teleskopierbaren Tragarmsegmentes angeordnet sein und die Halterung im wesentlichen quer zur Längserstreckung des teleskopierbaren Tragarmsegmentes verschieblich angeordnet sein. Bei dieser Ausführungsform läßt sich das Zusatzrohrsegment durch einfaches Kippen und Längsverschieben zwischen zwei Rohrsegmenten positionieren.In a second embodiment, the pivot axis of the Bracket essentially perpendicular to the longitudinal extension of the telescopic support arm segment can be arranged and the Bracket essentially transverse to the longitudinal extension of the telescopic support arm segment slidably arranged his. In this embodiment, it can Additional pipe segment by simply tilting and Position longitudinally between two pipe segments.

Bei beiden Ausführungsformen ist es dabei von Vorteil, wenn die die Trennstelle bildenden Endabschnitte der Rohrsegmente ineinander steckbar sind. Durch das Ineinanderstecken der Endabschnitte erhält man eine stabile Verbindung zwischen den Rohrsegmenten. Aus dem gleichen Grund ist es vorteilhaft, wenn jeweils die Endabschnitte der Rohrsegmente und des Zusatzrohrsegmentes ineinander steckbar sind. Eine besonders kostengünstige Lösung zum Verbinden des Zusatzrohrsegmentes mit zumindest einem der Rohrsegmente erhält man dabei, wenn das Zusatzrohrsegment in Achsrichtung begrenzt verschieblich in der Halterung aufgenommen ist. In both embodiments, it is advantageous if the end sections of the pipe segments forming the separation point are plugged into each other. By plugging the End sections give you a stable connection between the pipe segments. For the same reason it is advantageous if each of the end sections of the pipe segments and the additional pipe segment can be plugged into one another. A particularly inexpensive solution for connecting the Additional pipe segment with at least one of the pipe segments is obtained when the additional pipe segment in the axial direction is slidably accommodated in the holder.

In einer vorteilhaften Weiterbildung der Erfindung, kann die Halterung eine Feder aufweisen, die das Zusatzrohrsegment in eine entgegen der Teleskopierrichtung beim Überführen des teleskopierbaren Tragarmsegmentes von seiner zusammengeschobenen Stellung in eine seiner teleskopierten Stellungen vorspannt. Auf diese Weise läßt sich eine schnelle und effektive Trennung eines Rohrsegmentes und des Zusatzrohrsegmentes erzielen. Zur Vereinfachung des Zusammenfügens von Zusatzrohrsegment und Rohrsegment, kann ein Antrieb vorgesehen sein, mit dem das Zusatzrohrsegment entgegen der Wirkung der Feder bewegbar ist. Als vorteilhaft kann es sich dabei erweisen, wenn ein Teleskopierantrieb vorgesehen ist, mit dem das teleskopierbare Segment von seiner zusammengeschobenen in die teleskopierte Stellung und zurück überführbar ist, wodurch sich der Aufbau der Vorrichtung vereinfachen läßt. Als besonders günstig kann es sich dabei erweisen, wenn der Teleskopierantrieb den Antrieb für das Zusatzrohrsegment bildet.In an advantageous development of the invention, the Bracket have a spring that the additional pipe segment in one against the telescopic direction when transferring the telescopic support arm segment of his collapsed position in one of its telescoped Prestressed positions. In this way one can quick and effective separation of a pipe segment and the Achieve additional pipe segment. To simplify the Joining additional pipe segment and pipe segment, can a drive can be provided with which the additional pipe segment is movable against the action of the spring. As beneficial it may prove to be the case if a telescopic drive is provided with which the telescopic segment of its pushed into the telescopic position and is convertible back, which changes the structure of the Device can be simplified. It can be particularly cheap turn out to be when the telescopic drive drives forms for the additional pipe segment.

In einer vorteilhaften Weiterbildung der Erfindung, können die die Trennstelle bildenden Endabschnitte mit Schnellverschlüssen verbindbar sein. Ebenso kann es sich als günstig erweisen, wenn jeweils die Endabschnitte der Rohrsegmente und die zugeordneten Endabschnitte des Zusatzrohrsegmentes mit Schnellverschlüssen verbindbar sind. Dadurch läßt sich der Aufbau der Vorrichtung erheblich vereinfachen.In an advantageous development of the invention, the end sections forming the separation point Quick fasteners can be connected. Likewise, it can turn out to be prove to be favorable if the end sections of the Pipe segments and the associated end sections of the Additional pipe segment can be connected with quick-release fasteners. This allows the construction of the device to be considerable simplify.

In diesem Zusammenhang kann es vorteilhaft sein, wenn die die Schnellverschlüsse aufweisenden Endabschnitte als Klauenkupplung ausgebildet sind, wobei ein Endabschnitt mit schwenkbar gelagerten Klauen versehen ist, die von einer geschlossenen Stellung, in welcher die Klauen einen Absatz des zugeordneten, jeweils anderen Endabschnittes hintergreifen und dadurch beide Endabschnitte miteinander verbunden sind, in eine geöffnete Stellung überführbar sind, in welcher die Klauen den Absatz freigeben und die Endabschnitte voneinander trennbar sind. Vorteilhafterweise können die Klauen federbelastet und durch die Federn in ihrer geschlossenen Stellung vorgespannt sein. Um die Klauenkupplung fernbedienbar auszuführen, können die federbelasteten Klauen in einer vorteilhaften Weiterbildung der Erfindung fluidisch, vorzugsweise hydraulisch von der geschlossenen Stellung in die geöffnete Stellung überführbar sein.In this context it can be advantageous if the the quick release end sections as Claw coupling are formed, with an end portion with pivotally mounted claws is provided by a closed position, in which the claws a paragraph of the associated, other end section reach behind and thereby both end sections together are connected, can be moved into an open position, in which the claws release the heel and the End sections are separable. Advantageously can the claws spring loaded and by the springs in be biased to its closed position. To the The claw coupling can be operated remotely spring-loaded claws in an advantageous development the invention fluidically, preferably hydraulically by the closed position can be converted into the open position his.

Zum Erzielen einer dichten Verbindung zwischen Rohrsegmenten bzw. Rohrsegmenten und Zusatzrohrsegmenten, kann zumindest einer der Endabschnitte stirnseitig mit einer ringförmigen Ausnehmung versehen sein, in der im zusammengesteckten Zustand der Rohrsegmente ein zylinderringförmiger Vorsprung aufgenommen ist. Zudem kann in der ringförmigen Ausnehmung ein zylinderringförmiges Dichtelement angeordnet sein, an dem sich der zylinderförmige Vorsprung stirnseitig abstützt derart, daß die beiden Endabschnitte flüssigkeitsdicht miteinander verbunden sind.To achieve a tight connection between pipe segments or pipe segments and additional pipe segments, at least one of the end sections with an annular face Be provided recess in the assembled Condition of the pipe segments a cylindrical ring-shaped projection is recorded. In addition, in the annular recess a cylindrical ring-shaped sealing element can be arranged which the cylindrical projection is supported on the front such that the two end sections are liquid-tight are interconnected.

In einer vorteilhaften Weiterbildung der Erfindung, können die Tragarmsegmente durch Gelenke gelenkig miteinander verbunden sein. Dadurch läßt sich der Tragarm zusammenfaltbar gestalten. Von Vorteil kann es dabei sein, wenn die Rohrsegmente im Bereich der Gelenke gelenkig miteinander verbunden sind.In an advantageous development of the invention, the support arm segments articulated with each other by joints be connected. This allows the support arm design foldable. It can be an advantage if the pipe segments are articulated in the area of the joints are interconnected.

Für den Transport der Vorrichtung kann es günstig sein, wenn die Tragarmsegmente in eine Transportstellung überführbar sind, in welcher sie im wesentlichen parallel zueinander angeordnet sind. Die Tragarmsegmente können dabei in ihrer Transportstellung aufeinanderliegend angeordnet sein.For the transport of the device, it can be advantageous if the support arm segments can be transferred into a transport position in which they are essentially parallel to each other are arranged. The support arm segments can be in their Transport position may be arranged one on top of the other.

Um noch größere Förderhöhen zu erzielen, können mehrere teleskopierbare Tragarmsegmente und mehrere Zuführeinrichtungen vorgesehen sein. In order to achieve even higher delivery heights, several can telescopic support arm segments and several Feeding devices can be provided.

In einer vorteilhaften Ausgestaltung der Erfindung, können die Rohrsegmente an den zugehörigen Tragarmsegmenten befestigt sein. In diesem Zusammenhang, kann das teleskopierbare Tragarmsegment ein ausfahrbares Teilsegment und ein festes Teilsegment aufweisen, wobei das Rohrsegment an dem ausfahrbaren Teilsegment angebracht ist, das verschieblich in dem festen Teilsegment aufgenommen ist. Ebenso ist es denkbar, daß das Rohrsegment an dem festen Teilsegment angebracht ist.In an advantageous embodiment of the invention, can the pipe segments on the associated support arm segments be attached. In this context, it can telescopic support arm segment an extendable sub-segment and have a fixed subsegment, the pipe segment is attached to the extendable sub-segment that is slidably received in the fixed subsegment. It is also conceivable that the pipe segment on the fixed Sub-segment is attached.

Zum Transport der Vorrichtung ist es vorteilhaft, wenn die Betonpumpe auf einem Fahrgestell angeordnet ist. Als besonders vorteilhaft kann sich dabei die Montage der Vorrichtung auf einem Lkw-Fahrgestell erweisen.To transport the device, it is advantageous if the Concrete pump is arranged on a chassis. As The assembly of the Show device on a truck chassis.

Erfindungsgemäß ist darüber hinaus vorgesehen, daß das Pumpenleitungsende eine schlauchartige Verlängerung zum Verteilen des gepumpten Betons aufweisen kann.According to the invention it is also provided that Pump line end a hose-like extension to Distributing the pumped concrete can have.

Zum Betreiben der Vorrichtung zum Pumpen von Beton ist erfindungsgemäß vorgesehen, daß das teleskopierbare Segment in seine teleskopierte Stellung überführt wird und anschließend die Zuführeinrichtung von ihrer Ruhestellung in ihre Zuführstellung überführt wird.To operate the device for pumping concrete provided according to the invention that the telescopic segment is transferred into its telescopic position and then the feed device from its rest position in their feed position is transferred.

Darüber hinaus können die Endabschnitte der Rohrsegmente und der zugeordneten Endabschnitte des Zusatzrohrsegmentes ineinandergesteckt werden.In addition, the end sections of the pipe segments and the associated end sections of the additional pipe segment be plugged into each other.

Ferner ist es vorteilhaft, wenn zum Ineinanderstecken der Endabschnitte der Rohrsegmente und der zugehörigen Endabschnitte des Zusatzrohrsegmentes das teleskopierte Segment von einer weiter ausgefahrenen ersten teleskopierten Stellung in eine weniger ausgefahrene zweite teleskopierte Stellung rücküberführt wird, in der die Endabschnitte der Rohrsegmente und die zugehörigen Endabschnitte des Zusatzrohrsegmentes ineinandergefügt sind. Furthermore, it is advantageous if the End sections of the pipe segments and the associated End sections of the auxiliary pipe segment the telescoped Segment telescoped from an extended first Positioned in a less extended second telescoped Position is returned in which the end portions of the Pipe segments and the associated end sections of the Additional pipe segment are inserted into one another.

Im folgenden wird die Wirkungs- und Funktionsweise der Erfindung anhand eines Ausführungsbeispiels näher erläutert.In the following the effectiveness and functioning of the Invention explained in more detail using an exemplary embodiment.

Es zeigen:

Fig. 1
die erfindungsgemäße Vorrichtung zum Pumpen von Beton in einer Transportstellung auf einem Lkw,
Fig. 2
eine erste Ausführungsform eines teleskopierbaren Tragarmsegmentes der Vorrichtung aus Fig. 1 im zusammengeschobenen Zustand in einer Seitenansicht,
Fig. 3
das teleskopierbare Tragarmsegment aus Fig. 2 in einer teleskopierten Stellung,
Fig. 4
eine Schnittansicht des Tragarmsegmentes aus Fig. 2 entlang der Linie IV-IV,
Fig. 5
eine Schnittansicht des Tragarmsegmentes aus Fig. 3 entlang der Linie V-V,
Fig. 6
eine Trennstelle zwischen einem Rohrsegment und einem Zusatzrohrsegment in einer geschnittenen Seitenansicht,
Fig. 7
eine zweite Ausführungsform eines teleskopierbaren Tragarmsegmentes in einer zusammengeschobenen Stellung,
Fig. 8
das teleskopierbare Tragarmsegment aus Fig. 7 in einer teleskopierten Stellung.
Show it:
Fig. 1
the device according to the invention for pumping concrete in a transport position on a truck,
Fig. 2
2 shows a first embodiment of a telescopic support arm segment of the device from FIG. 1 in the pushed-together state in a side view,
Fig. 3
the telescopic support arm segment of FIG. 2 in a telescopic position,
Fig. 4
3 shows a sectional view of the support arm segment from FIG. 2 along the line IV-IV,
Fig. 5
3 shows a sectional view of the support arm segment from FIG. 3 along the line VV,
Fig. 6
a separation point between a pipe segment and an additional pipe segment in a sectional side view,
Fig. 7
a second embodiment of a telescopic support arm segment in a collapsed position,
Fig. 8
the telescopic support arm segment of FIG. 7 in a telescopic position.

Fig. 1 zeigt die Vorrichtung 1 zum Pumpen von Beton, die auf einem Lkw-Fahrgestell 2 fest montiert ist. Am hinteren Teil des Fahrgestells 2 befindet sich ein Pumpenantrieb 3. Aus dem Pumpenantrieb münden Rohrsegmente 4, die zusammen eine Pumpenleitung 5 bilden.Fig. 1 shows the device 1 for pumping concrete on a truck chassis 2 is firmly mounted. At the back the chassis 2 is a pump drive 3. Off the pump drive open pipe segments 4, which together a Form pump line 5.

Die Rohrsegmente 4 sind jeweils an Tragarmsegmenten 6 befestigt. Die Tragarmsegmente 6 sind jeweils über Gelenke 7 gelenkig miteinander verbunden. Ebenso sind die Rohrsegmente 4 an den Gelenken 7 gelenkig miteinander verbunden.The tube segments 4 are each on support arm segments 6 attached. The support arm segments 6 are each via joints 7 articulated together. The pipe segments are also 4 articulated to one another at the joints 7.

Wie in Fig. 1 dargestellt, sind die Tragarmsegmente 6 zum Transport der Vorrichtung 1 aufeinander gefaltet. In einer Arbeitsstellung bilden die Tragarmsegmente 6 einen auskragenden Tragarm 8, der über ein Drehgelenk 9 um eine vertikale Achse drehbar auf dem Lkw-Fahrgestell 2 gelagert ist. Das Überführen des Tragarmes 8 von seiner Transportstellung in seine Arbeitsstellung erfolgt mittels mehrerer Hydraulikzylinder 10. Wenn sich die Vorrichtung 1 in ihrer Arbeitsstellung befindet, befindet sich ein Leitungsende 11 in der Pumpenleitung 5 am Ende des am weitesten auskragenden Tragarmsegmentes 6.As shown in Fig. 1, the support arm segments 6 for Transport of the device 1 folded onto each other. In a Working position form the support arm segments 6 one cantilevered support arm 8, the one via a swivel 9 vertical axis rotatably mounted on the truck chassis 2 is. Transferring the support arm 8 from his Transport position in its working position is done by means of several hydraulic cylinders 10. If the device 1 is in its working position Line end 11 in the pump line 5 at the end of the widest cantilever arm segment 6.

Bei einem der Tragarmsegmente 6 handelt es sich um ein teleskopierbares Tragarmsegment 12, das ein ausziehbares Teilsegment 13 und ein festes Teilsegment 14 aufweist. Das ausziehbare Teilsegment 13 ist in Achsrichtung teleskopisch ausziehbar in dem festen Teilsegment gelagert. Das Teleskopieren des teleskopierbaren Tragarmsegmentes 12 erfolgt über einen angedeutet dargestellten, hydraulischen Teleskopantrieb 15.One of the support arm segments 6 is a telescopic support arm segment 12, which is an extendable Has subsegment 13 and a fixed subsegment 14. The Extendable subsegment 13 is telescopic in the axial direction extendable stored in the fixed sub-segment. The Telescoping the telescopic support arm segment 12 takes place via an indicated, hydraulic Telescopic drive 15.

Wie aus Fig. 2 ersichtlich ist, befindet sich parallel zu dem Rohrsegment 4 des teleskopierbaren Tragarmsegmentes 12 ein Zusatzrohrsegment 16. Dieses Zusatzrohrsegment 16 wird von einer an dem teleskopierbaren Tragarmsegment 12 angebrachten Zuführeinrichtung 17 gehalten. Die Zuführeinrichtung 17 weist eine, um eine Achse parallel zur Längserstreckung des teleskopierbaren Tragarmsegmentes 12 verlaufenden Drehachse schwenkbare Halterung 18 auf. In der Halterung 18 ist das Zusatzrohrsegment 16 in Richtung seiner Längsachse axial begrenzt verschieblich gelagert. Eine angedeutet dargestellte verdickte Feder 19 in der Halterung 18 spannt dabei das Zusatzrohrsegment 16 in Richtung des Teleskopiervorganges beim Überführen des teleskopierbaren Tragarmsegmentes 12 von seiner zusammengeschobenen Ausgangsstellung in seine teleskopierte Stellung vor. Die Halterung 18 ist von einer ersten Stellung, in welcher das Zusatzrohrsegment 16 außerhalb des von den Rohrsegmenten 4 eingenommenen Volumens angeordnet ist, in eine zweite Stellung überführbar, in welcher zumindest ein Endabschnitt 20 des Zusatzrohrsegmentes 16 mit zumindest einem Endabschnitt 21 eines der Rohrsegmente 4 fluchtet. Aus Fig. 3 ist die Halterung 18 in ihrer zweiten Stellung entnehmbar. Zudem ist in den Fig. 2 und 3 entnehmbar, daß in Richtung der Längserstreckung des teleskopierbaren Tragarmsegmentes 12 immer ein Endabschnitt 20 des Zusatzrohrsegmentes 16 im wesentlichen auf gleicher Höhe mit einem der Endabschnitt 21 der Rohrsegmente 4 angeordnet ist. Den Fig. 2 und 3 kann ebenfalls entnommen werden, daß sich zwischen dem nahe dem Zusatzrohrsegment 16 angeordneten Rohrsegmenten 4 eine Trennstelle 22 befindet. An dieser Trennstelle 22 sind die Endabschnitte 21 der zugehörigen Rohrsegmente 4 durch eine Klauenkupplung 23 trennbar verbunden. In Fig. 6 ist die Klauenkupplung 23 in einer geschnittenen Seitenansicht dargestellt. Wie aus Fig. 6 entnehmbar ist, weist einer der Endabschnitte 21 der Rohrsegmente 4 schwenkbar gelagerte Klauen 24 auf, die von einer geschlossenen Stellung in eine geöffnete Stellung überführbar sind, wobei die Klauen 24 durch Federn 25 in ihrer geschlossenen Stellung vorgespannt sind. In der geschlossenen Stellung hintergreifen die Klauen 24 einen Absatz 26 des jeweils anderen Endabschnittes 21 des zugeordneten Rohrsegmentes 4. Zudem ist ersichtlich, daß einer der Endabschnitte 21 der Rohrsegmente 4 stirnseitig mit einer ringförmigen Ausnehmung 27 versehen ist, in der im zusammengesteckten Zustand der Rohrsegmente 4 ein zylinderringförmiger Vorsprung 28 aufgenommen ist. As can be seen from Fig. 2, is located parallel to the pipe segment 4 of the telescopic support arm segment 12 an additional pipe segment 16. This additional pipe segment 16 is from one on the telescopic support arm segment 12 attached feed device 17 held. The Feed device 17 has a, about an axis parallel to Longitudinal extension of the telescopic support arm segment 12 extending axis of rotation pivotable bracket 18. In the Bracket 18 is the additional pipe segment 16 in the direction of it Longitudinal axis axially displaceable. A indicated thickened spring 19 shown in the holder 18 spans the additional pipe segment 16 in the direction of Telescopic process when transferring the telescopic Support arm segment 12 from its collapsed Starting position in its telescopic position. The Bracket 18 is from a first position in which the Additional pipe segment 16 outside of the pipe segments 4 occupied volume is arranged in a second Position transferable, in which at least one end section 20 of the additional pipe segment 16 with at least one End section 21 of one of the pipe segments 4 is aligned. From Fig. 3, the holder 18 can be removed in its second position. In addition, it can be seen in FIGS. 2 and 3 that in the direction the longitudinal extent of the telescopic support arm segment 12 always an end portion 20 of the additional pipe segment 16 in essentially level with one of the end sections 21 the pipe segments 4 is arranged. 2 and 3 can can also be seen that between the near Additional pipe segment 16 arranged pipe segments 4 a Separation point 22 is located. At this separation point 22 are the End sections 21 of the associated pipe segments 4 by a Claw coupling 23 is separably connected. 6 is the Claw coupling 23 in a sectional side view shown. As can be seen from Fig. 6, one of the End sections 21 of the pipe segments 4 pivotally mounted Claws 24 on from a closed position to a open position can be transferred, the claws 24th biased by springs 25 in their closed position are. In the closed position, the claws reach behind 24 a paragraph 26 of the other end portion 21 of the assigned pipe segment 4. It can also be seen that one of the end sections 21 of the tube segments 4 on the end face is provided with an annular recess 27 in which assembled state of the pipe segments 4 cylindrical ring-shaped projection 28 is received.

Zusätzlich ist in der ringförmigen Ausnehmung ein zylinderringförmiges Dichtelement 29 angeordnet, in dem sich der zylinderringförmige Vorsprung stirnseitig abstützt. Dadurch sind im zusammengesteckten Zustand die Rohrsegmente 4 flüssigkeitsdicht miteinander verbunden. Die Klauen 24 können durch eine angedeutet dargestellte Hydraulikvorrichtung hydraulisch betätigt werden.In addition, there is a in the annular recess arranged cylindrical sealing element 29, in which the cylindrical ring-shaped projection is supported at the end. As a result, the pipe segments are in the assembled state 4 connected to each other in a liquid-tight manner. The claws 24 can be represented by an indicated Hydraulic device can be operated hydraulically.

Die Endabschnitte 20 des Zusatzrohrsegmentes 16 sind entsprechend der Klauenkupplung 23 gestaltet derart, daß das Zusatzrohrsegment 16 zwischen zwei einander zugeordneten Endabschnitten 20 der Rohrsegmente 4 eingesetzt und verkuppelt werden kann.The end portions 20 of the additional pipe segment 16 are corresponding to the dog clutch 23 designed such that the Additional pipe segment 16 between two associated with each other End sections 20 of the pipe segments 4 used and can be coupled.

Wie aus Fig. 3 ersichtlich ist, läßt sich das teleskopierbare Tragarmsegment 12 in eine teleskopierte Stellung überführen, in welcher das Zusatzrohrsegment 16 zwischen dem an dem ausziehbaren Teilsegment 13 angebrachten Rohrsegment 4 und dem am festen Teilsegment 14 angebrachten Rohrsegment 4 positionieren. Das teleskopierbare Tragarmsegment 12 kann dabei in mehreren teleskopierten Stellungen arretiert werden.As can be seen from Fig. 3, it can telescopic support arm segment 12 in a telescopic Transfer position in which the additional pipe segment 16 between that attached to the extendable sub-segment 13 Pipe segment 4 and attached to the fixed sub-segment 14 Position pipe segment 4. The telescopic Support arm segment 12 can be telescoped in several Positions are locked.

In einer zweiten Ausführungsform der erfindungsgemäßen Vorrichtung 1 ist das Zusatzrohrsegment 16 um eine Achse senkrecht zur Längserstreckung des teleskopierbaren Tragsegmentes 12 schwenkbar in der Zuführeinrichtung 17 gehalten. Die Zuführeinrichtung 17 erlaubt es darüber hinaus, das Zusatzrohrsegment 16 senkrecht zur Längserstreckung des teleskopierbaren Tragarmsegmentes 12 zu verschieben.In a second embodiment of the invention Device 1 is the additional pipe segment 16 about an axis perpendicular to the longitudinal extent of the telescopic Support segment 12 pivotable in the feed device 17th held. The feed device 17 allows it above addition, the additional pipe segment 16 perpendicular to Longitudinal extension of the telescopic support arm segment 12 move.

Im folgenden wird die Wirkungs- und Funktionsweise der erfindungsgemäßen Vorrichtung näher erläutert:In the following the effectiveness and functioning of the Device according to the invention explained in more detail:

Beim Überführen der erfindungsgemäßen Vorrichtung 1 von ihrer Transportstellung in die Arbeitsstellung, werden die in Transportstellung aufeinandergefalteten Tragarmsegmente 6 und 12 derart entfaltet, daß sie einen auskragenden Tragarm 8 bilden. Anschließend wird das teleskopierbare Tragarmsegment 12 von seiner zusammengeschobenen Ausgangsstellung in eine teleskopierte Stellung überführt, wobei zunächst die Rohrsegmente 4 an der Trennstelle 22 durch die Klauenkupplung 23 getrennt werden. Dadurch, daß eines der Rohrsegmente 4 an dem ausziehbaren Teilsegment 13 angebracht ist, werden die zuvor an der Trennstelle 22 miteinander verbundenen Rohrsegmente 4 voneinander beabstandet, wenn das teleskopierbare Tragsegment 12 in eine teleskopierte Stellung überführt wird. Es handelt sich dabei um eine erste teleskopierte Stellung, in welcher der Abstand zwischen den beiden voneinander beabstandeten Rohrsegmenten 4 größer als die Länge des Zusatzrohrsegmentes 16 ist.When transferring the device 1 according to the invention from their transport position in the working position, the in the transport position folded support arm segments 6 and 12 unfolded so that they have a cantilevered arm 8 form. Then the telescopic Support arm segment 12 from its collapsed Transferred to a telescopic position, initially the pipe segments 4 at the separation point 22 can be separated by the dog clutch 23. As a result of that one of the tube segments 4 on the extendable partial segment 13 is attached, the previously at the separation point 22nd interconnected pipe segments 4 from each other spaced when the telescopic support segment 12 in a telescopic position is transferred. These are around a first telescopic position in which the distance between the two spaced tube segments 4 is greater than the length of the additional pipe segment 16.

Nun wird das Zusatzrohrsegment 16 mit Hilfe der Zuführeinrichtung 17 zwischen den beiden Endabschnitten 21 der beiden voneinander beabstandeten Rohrsegmente 4 positioniert. Dazu wird die Halterung 18 von ihrer ersten Stellung in die zweite Stellung überführt, in welcher die Endabschnitte 20 des Zusatzrohrsegmentes 16 mit den Endabschnitten 21 der voneinander beabstandeten Rohrsegmente 4 fluchten. Anschließend wird das teleskopierte Tragarmsegment 12 in eine zweite teleskopierte Stellung überführt, in der der Abstand der beiden Endabschnitte 21 der voneinander beabstandeten Rohrsegmente 4 geringer ist als der Abstand der Endabschnitte 20 des Zusatzrohrsegmentes 16, wodurch die voneinander beabstandeten Rohrsegmente 4 und das Zusatzrohrsegment 16 ineinandergesteckt werden. Dabei wird das Zusatzrohrsegment 16 entgegen der Federkraft der angedeutet dargestellten Feder 19 durch den Druck des am ausziehbaren Teilsegment 13 angebrachten Rohrsegmentes 4 in das am festen Teilsegment 14 angebrachte Rohrsegment 4 hineingedrückt. Da die Endabschnitte sowohl des Zusatzrohrsegmentes, als auch der Rohrsegmente 4 in gleicher Weise gestaltet sind, bilden auch die zusammengefügten Endabschnitte 20 bzw. 21 des Zusatzrohrsegmentes 16 und der Rohrsegmente 4 jeweils Klauenkupplungen.Now the additional pipe segment 16 with the help of Feed device 17 between the two end sections 21 of the two spaced-apart pipe segments 4 positioned. For this purpose, the bracket 18 from its first Position transferred to the second position in which the End sections 20 of the additional pipe segment 16 with the End portions 21 of the spaced tube segments 4 are in line. Then the telescoped Support arm segment 12 in a second telescopic position transferred, in which the distance between the two end portions 21st the spaced apart pipe segments 4 is smaller than the distance of the end portions 20 of the auxiliary pipe segment 16, whereby the spaced tube segments 4 and the additional pipe segment 16 are inserted into each other. Here the additional pipe segment 16 against the spring force of the indicated indicated spring 19 by the pressure of the extendable sub-segment 13 attached pipe segment 4 in the pipe segment 4 attached to the fixed subsegment 14 pushed in. Since the end sections of both Additional pipe segment, as well as the pipe segments 4 in the same Ways are designed, form the assembled End sections 20 and 21 of the additional pipe segment 16 and Pipe segments 4 each claw couplings.

Bei der in den Fig. 7 und 8 dargestellten zweiten Ausführungsform der erfindungsgemäßen Vorrichtung 1 erfolgt das Anbringen des Zusatzrohrsegmentes 16 auf die gleiche Weise, jedoch mit dem Unterschied, daß das Zusatzrohrsegment 16 nicht durch eine Schwenkbewegung zwischen den beiden voneinander beabstandeten Rohrsegmenten 4 angeordnet wird, sondern durch ein Verschieben quer zur Längserstreckung des teleskopierbaren Tragarmsegmentes 12 und ein anschließendes Kippen um eine Achse senkrecht zur Längserstreckung des teleskopierbaren Tragarmsegmentes 12.In the second shown in FIGS. 7 and 8 Embodiment of the device 1 according to the invention takes place the attachment of the additional pipe segment 16 to the same Way, but with the difference that the additional pipe segment 16 not by a pivoting movement between the two spaced apart pipe segments 4 is arranged, but by moving it transversely to the longitudinal extent of the telescopic support arm segment 12 and a subsequent Tilt about an axis perpendicular to the longitudinal extension of the telescopic support arm segment 12.

Zur Demontage des Zusatzrohrsegmentes 16 werden bei beiden Ausführungsformen zunächst die aus den Endabschnitten gebildeten Klauenkupplungen 23 hydraulisch geöffnet. Anschließend wird das teleskopierbare Tragarmsegment 12 wieder in seine erste teleskopierte Stellung überführt, wodurch die Endabschnitte 20 und 21 jeweils voneinander getrennt werden. Die Kraft der Feder 19 bewirkt dabei, daß die Endabschnitte 20 und 21 des Zusatzrohrsegmentes 16 und des am festen Teilsegment 14 angeordneten Rohrsegmentes 4 voneinander beabstandet werden. Nun kann die Zuführeinrichtung 17 wieder in ihre erste Stellung rücküberführt werden, in welcher das Zusatzrohrsegment 16 außerhalb des von den Rohrsegmenten 4 eingenommenen Volumens angeordnet ist.To dismantle the additional pipe segment 16 are in both Embodiments first of all from the end sections formed claw clutches 23 opened hydraulically. Then the telescopic support arm segment 12 returned to its first telescopic position, whereby the end portions 20 and 21 are separated from each other be separated. The force of the spring 19 causes that the end sections 20 and 21 of the additional pipe segment 16 and of the tubular segment 4 arranged on the fixed partial segment 14 be spaced from each other. Now that can Feed device 17 again in its first position are returned in which the additional tube segment 16 outside the volume occupied by the pipe segments 4 is arranged.

Die erfindungsgemäße Vorrichtung 1 erlaubt es, bei vergleichsweise geringen Abmessungen eine große Förderhöhe zu erzielen.The device 1 according to the invention allows comparatively small dimensions, a large delivery head to achieve.

Claims (36)

  1. A device for pumping concrete, comprising a supporting arm (8) projecting at an operating position and used for positioning the conduit end (11) of a pump conduit (5), said supporting arm (8) including supporting arm segments (6) which each have arranged thereon at least one tubular segment (4) constituting a component of said pump conduit (5), and at least one of said supporting segments (12) being transferrable from a non-extended starting position to at least one extended position at which the length of said telescopic supporting arm segment (12) is longer than the length of the respective associated tubular segments (4), characterized in that one of said supporting arm segments (6, 12) has provided thereon at least one positioning means (17) which is provided as a movable holder (18) for positioning the at least one auxiliary tubular segment (16), to which end said positioning means (17) is transferrable from a first position at which the auxiliary tubular segment (16) is arranged outside the volume taken up by the tubular segments (4) to a second position at which at least one end section (20) of said auxiliary tubular segment (16) is in alignment with at least one end section (21) of one of said tubular segments (4), so that the pump conduit (5) is adapted to be formed essentially by the tubular segments (4) and the auxiliary tubular segment (16).
  2. A device according to claim 1, characterized in that at least two tubular segments (4) have provided between them a separation point (22) so that at one of the extended positions of the telescopic supporting arm segment (12) the end sections (21) of the associated tubular segments (4), which define the separation point (22), are spaced from one another in such a way that the auxiliary tubular segment (16) is adapted to be positioned between said end sections (21) defining the separation point (22).
  3. A device according to claim 1 or 2, characterized in that an end section (20) of the auxiliary tubular segment (16) is always positioned essentially on one level with an end section (21) of a tubular segment (4) in the axial direction.
  4. A device according to any one of the preceding claims, characterized in that the positioning means is constructed as a pivotable holder (18) for the auxiliary tubular segment (16).
  5. A device according to one of the preceding claims, characterized in that the holder (18) is arranged on the telescopic supporting arm segment (12).
  6. A device according to one of the preceding claims, characterized in that the longitudinal axis of the auxiliary tubular segment (16) extends essentially parallel to the longitudinal direction of the telescopic supporting arm segment (16).
  7. A device according to one of claims 4 to 6, characterized in that the pivot axis of the holder (18) extends essentially parallel to the longitudinal direction of the telescopic supporting arm segment (12).
  8. A device according to one of claims 4 to 7, characterized in that the pivot axis of the holder (18) extends essentially at right angles to the longitudinal direction of the telescopic supporting arm segment (12).
  9. A device according to one of claims 1 to 8, characterized in that the end sections (21) of the tubular segments (4), which define the separation point (22), are adapted to be fitted into one another.
  10. A device according to one of the preceding claims, characterized in that the respective end sections (20, 21) of the tubular segments (4) and of the auxiliary tubular segment (16) are adapted to be fitted into one another.
  11. A device according to one of the preceding claims, characterized in that the auxiliary tubular segment (16) is supported in said holder (18) such that it is adapted to be displaced to a limited degree in the axial direction.
  12. A device according to one of the preceding claims, characterized in that the holder (18) is provided with a spring (19) which pretensions the auxiliary tubular segment (16) in a direction opposite to the telescoping direction when the telescopic supporting arm segment (12) is being transferred from its non-extended position to its extended position.
  13. A device according to claim 12, characterized in that a drive is provided by means of which the auxiliary tubular segment (16) can be moved against the force applied by the spring (19).
  14. A device according to one of the preceding claims, characterized in that a telescope drive is provided by means of which the telescopic supporting arm segment can be transferred from its non-extended position to its extended position and back to said non-extended position.
  15. A device according to claim 14, characterized in that the telescope drive constitutes the drive for the auxiliary tubular segment (16).
  16. A device according to one of the preceding claims, characterized in that the end sections (20) defining the separation point (22) are adapted to be connected with the aid of quick-acting coupling means (23).
  17. A device according to claim 16, characterized in that the end sections (21) of the tubular segments and the associated end sections (20) of the auxiliary tubular segment (16) are adapted to be connected with the aid of quick-acting coupling means (23).
  18. A device according to claim 16 or 17, characterized in that the end sections provided with the quick-acting coupling means (23) are constructed as a claw clutch (23), one end section (20, 21) being provided with pivotably supported claws (24), which are adapted to be transferred from a closed position at which said claws (24) engage behind a shoulder (26) of the respective other associated end section (20, 21), thus interconnecting the two end sections (20, 21), to an open position at which the claws (24) release said shoulder (26) and the end sections (20, 21) can be separated from one another.
  19. A device according to claim 18, characterized in that the claws (24) are spring-loaded and that they are pretensioned by the spring (25) at their closed position.
  20. A device according to claim 18 or 19, characterized in that the spring-loaded claws (24) are adapted to be transferred from their closed position to their open position with the aid of fluid means, preferably with the aid of hydraulic means.
  21. A device according to one of the preceding claims, characterized in that the end face of at least one of said end sections (20, 21) is provided with an annular recess (27) accommodating, in the interengaged condition of the tubular segments (4), a projection (28) having the shape of a cylindrical ring.
  22. A device according to claim 21, characterized in that the annular recess (27) has arranged therein a sealing element (29), which has the shape of a cylindrical ring and on which the end face of said projection (28) having the shape of a cylindrical ring rests in such a way that the two end sections (20, 21) are interconnected in a liquid-tight manner.
  23. A device according to one of the preceding claims, characterized in that the supporting arm segments (6) are articulated on one another by means of joints (7).
  24. A device according to one of the preceding claims, characterized in that the tubular segments (4) are articulated on one another in the area of said joints (7).
  25. A device according to one of the preceding claims, characterized in that the supporting arm segments (6) are adapted to be transferred to a transport position at which they are arranged essentially parallel to one another.
  26. A device according to one of the preceding claims, characterized in that, at their transport position, the supporting arm segments (6) are arranged one on top of the other.
  27. A device according to one of the preceding claims, characterized in that several telescopic supporting arm segments (12) and several positioning means (17) are provided.
  28. A device according to one of the preceding claims, characterized in that the tubular segments (4) are secured to the associated supporting arm segments (6).
  29. A device according to one of the preceding claims, characterized in that the telescopic supporting arm segment (12) comprises an extendable subsegment (13) and a fixed subsegment (14), one of said tubular segments (4) being attached to the extendable subsegment (13) which is displaceably received in said fixed subsegment (14).
  30. A device according to claim 29, characterized in that one of said tubular segments (4) is attached to the fixed subsegment (14).
  31. A device according to one of the preceding claims, characterized in that the device (1) is arranged on a chassis (2).
  32. A device according to one of the preceding claims, characterized in that the device (1) is arranged on a chassis (2) of a truck.
  33. A device according to one of the preceding claims, characterized in that the end of the pump conduit is provided with a hoselike extension for distributing the pumped concrete.
  34. A method of operating a device for pumping concrete according to one of the preceding claims, characterized in that the telescopic supporting arm segment (12) is transferred to its extended position and that, subsequently, the positioning means (17) is transferred from its position of rest to its operating position.
  35. A method according to claim 34, characterized in that the end sections (21) of the tubular segments (4) and the associated end sections (20) of the auxiliary tubular segment (16) are fitted into one another.
  36. A method according to claim 35, characterized in that, for fitting the end sections (21) of the tubular segments (4) and the associated end sections (20) of the auxiliary tubular segment (16) into one another, the telescoped segment is returned from a further extended first telescoped position to a less extended second telescoped position at which the end sections (20) of the tubular segments (21) and the associated end sections (20) of the auxiliary tubular segments (12) are fitted into one another.
EP95938438A 1994-11-08 1995-11-08 Concrete pumping device Expired - Lifetime EP0738362B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4439930A DE4439930C2 (en) 1994-11-08 1994-11-08 Device for pumping concrete
DE4439930 1994-11-08
PCT/EP1995/004400 WO1996014485A1 (en) 1994-11-08 1995-11-08 Concrete pumping device

Publications (2)

Publication Number Publication Date
EP0738362A1 EP0738362A1 (en) 1996-10-23
EP0738362B1 true EP0738362B1 (en) 2000-04-19

Family

ID=6532822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95938438A Expired - Lifetime EP0738362B1 (en) 1994-11-08 1995-11-08 Concrete pumping device

Country Status (7)

Country Link
US (1) US5913323A (en)
EP (1) EP0738362B1 (en)
JP (1) JP3809187B2 (en)
KR (1) KR970700271A (en)
CN (1) CN1133786C (en)
DE (1) DE4439930C2 (en)
WO (1) WO1996014485A1 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641789C1 (en) * 1996-10-10 1998-07-16 Korthaus Ernst Concrete distribution system for ready-mixed concrete
DE19850009A1 (en) * 1998-09-28 2000-03-30 Putzmeister Ag Truck-mounted concrete pump
US6220292B1 (en) * 2000-04-12 2001-04-24 Glazer Enterprises Crane-mounted concrete pump apparatus
US6142180A (en) 2000-04-12 2000-11-07 Woodling; Roger M. Crane-mounted concrete pump apparatus
DE10106427B4 (en) * 2001-02-12 2006-06-22 Schwing Gmbh Distributor device for thick materials, in particular for concrete
DE10112086A1 (en) * 2001-03-12 2002-09-26 Putzmeister Ag Distribution device for thick matter
DE10145632A1 (en) * 2001-09-15 2003-04-17 Tbg Transportbeton Rheinhessen Ready mix concrete delivery vehicle, comprising concrete distribution arm additionally fitted with surface treatment distributing device
US6588448B1 (en) 2002-01-07 2003-07-08 Glazer Enterprises, Inc. Telescopic boom-mounted concrete pump apparatus
DE10246447A1 (en) * 2002-10-04 2004-04-15 Putzmeister Ag Concrete pump is mounted, together with concrete supply tank, on frame which fits on to lorry, fixed mounting and releasable mounting holding pump and tank in place
US20040145180A1 (en) * 2003-01-15 2004-07-29 Mayer Martin G. Reinforced composite boom pipe with bonded sleeves
US20040228739A1 (en) * 2003-05-12 2004-11-18 Mayer Martin G. Filament-wound composite boom pipe
WO2005054588A1 (en) * 2003-12-01 2005-06-16 Nisshoku Corporation Device for spraying mortar or concrete, and method of spraying mortar or concrete by using the device
US7712481B1 (en) * 2005-04-13 2010-05-11 Vactor/Guzzler Manufacturing, Inc. Suction hose arrangement for refuse tank trucks
CN101078298B (en) * 2007-04-25 2010-06-16 董连城 Method for selecting arm support accroding to the pumping distance in concrete pump vehicle
US8627981B2 (en) * 2009-06-05 2014-01-14 Abbott Laboratories Container
IT1398899B1 (en) * 2010-03-12 2013-03-21 Cifa Spa CONCRETE DISTRIBUTION ARM AND ITS CONSTRUCTION PROCEDURE
DE102010022669B4 (en) * 2010-06-04 2016-04-14 Schwing Gmbh Mastarmvorrichtung with compensation device and vehicle with such Mastarmvorrichtung for transporting a concrete pump
CN102069742B (en) * 2010-12-28 2013-01-09 林志国 Rotatable folding flow guide pipe
CN102304978A (en) * 2011-06-28 2012-01-04 三一重工股份有限公司 Pump truck
CN102345390B (en) * 2011-07-21 2013-07-17 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 Method for compensating for deflection of concrete pump truck arm support
RU2476654C1 (en) * 2011-11-08 2013-02-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Томский государственный архитектурно-строительный университет" (ТГАСУ) Placer mast of truck-mounted concrete pump
DE102012109526A1 (en) * 2012-10-08 2014-04-10 Götz Hudelmaier Apparatus and method for conveying thick matter
DE102012224529A1 (en) * 2012-12-28 2014-07-03 Putzmeister Engineering Gmbh Implement with turret cutting point
CN107345451B (en) * 2017-07-31 2019-06-18 青岛九合重工机械有限公司 A kind of concrete pumping casting method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150753A (en) * 1962-12-19 1964-09-29 Ivanyi Ferenc Tubing for conveying freshly mixed concrete
GB1085273A (en) * 1964-01-24 1967-09-27 Fairey Eng Improvements relating to pipe couplings
DE1456868C3 (en) * 1966-05-03 1981-01-08 Friedrich Wilh. Dipl.-Ing. 4680 Wanne-Eickel Schwing Device for conveying and distributing concrete, mounted on a self-propelled or trailer chassis
DE1949826A1 (en) * 1969-10-02 1971-04-08 Huennebeck Gmbh Articulated boom for movable concrete pumps
US3707990A (en) * 1971-01-11 1973-01-02 Case Co J I Concrete placement apparatus
US4130134A (en) * 1976-12-13 1978-12-19 Morgen Manufacturing Company Material conveying apparatus
US4828033A (en) * 1981-06-30 1989-05-09 Dowell Schlumberger Incorporated Apparatus and method for treatment of wells
US5145686A (en) * 1982-02-03 1992-09-08 Efamol Limited Topical pharmaceutical compositions
DE3409474C2 (en) * 1984-03-15 1986-11-27 Maschinenfabrik Walter Scheele GmbH & Co KG, 4750 Unna-Massen Collapsible concrete distribution equipment
US5252333A (en) * 1987-04-27 1993-10-12 Scotia Holdings Plc Lithium salt-containing pharmaceutical compositions
AU616502B2 (en) * 1988-04-22 1991-10-31 Medvet Science Pty. Ltd. Treatment of inflammatory disorders in humans
DE9102678U1 (en) * 1991-03-06 1991-05-23 Noell GmbH, 8700 Würzburg Remotely operable plug-in coupling for connecting cables
DE9212417U1 (en) * 1992-09-15 1993-01-28 Welzel, Andreas, 8052 Moosburg Device for continuous concreting of large structures
DE4233171A1 (en) * 1992-10-02 1994-04-07 Putzmeister Maschf Concrete placing boom

Also Published As

Publication number Publication date
JPH09507888A (en) 1997-08-12
WO1996014485A1 (en) 1996-05-17
CN1133786C (en) 2004-01-07
JP3809187B2 (en) 2006-08-16
US5913323A (en) 1999-06-22
EP0738362A1 (en) 1996-10-23
DE4439930C2 (en) 1996-10-10
KR970700271A (en) 1997-01-08
DE4439930A1 (en) 1996-05-09
CN1140480A (en) 1997-01-15

Similar Documents

Publication Publication Date Title
EP0738362B1 (en) Concrete pumping device
DE2520237C2 (en) Device for the detachable connection of two tubular borehole elements
EP1129265B1 (en) Distributing device for thick substances, especially concrete
DE202008007970U1 (en) Construction work tool with swiveling mast
EP2019943A1 (en) Mechanism for connecting two flanged pipe ends or tube ends
DE3610836C2 (en) Device for joining pipes
DE202008001258U1 (en) Interception rod stand
DE3802726C2 (en) Collapsible tow bar for vehicles
DE102013011173B4 (en) Method for assembling a crane as well as articulation, telescopic boom and crane
DE10007773B4 (en) Crane with a telescopic boom
WO1993011981A1 (en) Device for pivoting a truck stabilizer jack upwards
EP1323871B1 (en) Outrigger device for working machines such as hydraulic excavators or the like
DE69319119T2 (en) LOCKABLE TELESCOPIC DEVICE AND THEIR USE
DE2116120A1 (en) Bridge-laying device
DE2823417B2 (en) Manhole lining for use in drilling up a manhole and manhole ring for such a manhole lining
AT412659B (en) DEVICE FOR SUPPORTING A TRACKING VEHICLE, IN PARTICULAR A TRACTOR, COUPLING SWINGARM FOR A WORKING DEVICE
DE202004017598U1 (en) Telescopic extension arm with swivel piece serving as unlocking device and moving on swivel actuator has groove which comes in and out of contact with telescopic locking means depending on swivel position
DE10116245A1 (en) Telescopic boom for a mobile crane
EP0374788B1 (en) Telescopic drill string
EP0539919B1 (en) Support device for special vehicles, especially for movable concrete pumps
DE2826183B2 (en) Discharge line with discharge at the front
EP1810736B1 (en) Telescoping system and a toy vehicle with such a telescoping system
EP1288399B1 (en) Angle building unit
DE2200509C2 (en) Connection between cutting unit and combine harvester - has flaps swung open by hydraulic cylinder for release from connecting bolts
DE3719986C2 (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960806

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): IT

17Q First examination report despatched

Effective date: 19981008

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): IT

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HUDELMAIER, GERHARD

ITF It: translation for a ep patent filed
EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051108