EP4098870B1 - Viscous material pump - Google Patents

Viscous material pump Download PDF

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Publication number
EP4098870B1
EP4098870B1 EP22172479.2A EP22172479A EP4098870B1 EP 4098870 B1 EP4098870 B1 EP 4098870B1 EP 22172479 A EP22172479 A EP 22172479A EP 4098870 B1 EP4098870 B1 EP 4098870B1
Authority
EP
European Patent Office
Prior art keywords
pump
viscous material
chassis
feed hopper
delivery
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.)
Active
Application number
EP22172479.2A
Other languages
German (de)
French (fr)
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EP4098870A1 (en
Inventor
Alexander Eberhard
Hans-Peter Mack
Karl Westermann
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 Mischtecknik GmbH
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Publication of EP4098870A1 publication Critical patent/EP4098870A1/en
Application granted granted Critical
Publication of EP4098870B1 publication Critical patent/EP4098870B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/02—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having two cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/06—Mobile combinations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0003—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber
    • F04B7/0011—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having an oscillating movement

Definitions

  • the present invention relates to a thick matter pump, in particular a concrete pump, according to the preamble of claim 1.
  • Different types of mobile and stationary concrete pumps are known from the prior art, which can be equipped with a chassis.
  • Such concrete pumps can be self-propelled (e.g. truck-mounted concrete pumps or crawler concrete pumps) or can be pulled or otherwise moved.
  • the pump system or pump structure is mounted on a standard carrier chassis and combined with a distribution boom.
  • Mobile concrete pumps without a distribution boom typically include a pump structure, which includes the actual pump device or pump, a feed hopper for feeding thick matter and a delivery line into which the thick matter is pumped, and is mounted on a chassis.
  • the chassis For example, it can be a crawler chassis or a trailer axle with wheels.
  • stationary concrete pumps with a chassis and a pump structure mounted on it are also known.
  • the present invention is therefore based on the object of providing a thick matter pump of the type mentioned at the outset, whose pump structure is less bulky or makes optimal use of the space occupied and whose pump device is more accessible for maintenance and control work.
  • a thick matter pump in particular a concrete pump, which has a chassis and a pump structure attached to the chassis with a pump device for conveying Thick matter, especially concrete, includes.
  • the pump device is arranged laterally offset from the longitudinal axis of the chassis, with the overall width of the thick matter pump being limited on one side, preferably on both sides, by the pump structure.
  • the chassis can include a chassis frame or a frame structure for accommodating machine elements such as chassis components.
  • the undercarriage can, for example, be a crawler undercarriage with several (in particular two) crawler undercarriage vessels or a trailer undercarriage with at least one wheel axle.
  • the idea according to the invention is therefore to arrange the pump device off-center on the chassis, so that the longitudinal axis of the pump device is spaced from the longitudinal axis of the chassis.
  • the longitudinal axes are laterally offset and preferably run parallel to one another.
  • the vehicle frame does not protrude beyond the outer contour of the pump structure.
  • the longitudinal axis of the chassis can correspond to the longitudinal axis of a chassis frame or a frame structure of the chassis.
  • the longitudinal axes of the chassis and the pump structure are, in particular, their central axes.
  • the pump device represents the actual "pump” of the construction machine, referred to here as a "thick matter pump", by means of which the thick matter is conveyed or pumped, and can, for example, in addition to a pump unit for sucking and pumping thick matter, other elements such as a drive unit for supplying energy to the pump device, include a feed hopper and/or a delivery line.
  • a pump device for supplying energy to the pump device, includes a feed hopper and/or a delivery line.
  • the actual pump is therefore referred to here as a “pump device”, whereas the terms “thick matter pump” or “concrete pump” stand for the entire construction machine.
  • the off-center installation of the pump device means that its assembly and inspection points are moved to one side of the vehicle and are therefore much more accessible from the outside than before - the machine design of the thick matter pump is easier to assemble and service.
  • the limitation of the overall width by the pump structure also ensures in particular that the maintenance and operating personnel have direct access to the maintenance and control points and that the frame structure or the chassis does not hinder this access.
  • the off-center arrangement of the pump device also enables better access to maintenance and service points of any internal combustion engine of the thick matter pump, for example for changing filters or oil, due to the narrower overall machine.
  • the motor is moved to the same side of the thick matter pump as the pump device.
  • the space-saving component arrangement resulting from the off-center arrangement of the pump device can also be advantageous when transporting the thick matter pump, for example on a truck or in an ISO sea container.
  • the off-center arrangement of the pump device results in an increase in larger installation space on the side of the thick matter pump, from which the pump device moves away - for example usable to accommodate other required large components of the pump structure or space-consuming machine elements of the thick matter pump such as motor(s), cooler or tank ( s).
  • the installation space Through clever use of the installation space, the dimensions of the entire machine can be further reduced, which brings with it an increase in clarity and safety when moving the thick matter pump on the construction site.
  • the machine height can also be reduced through clever use of installation space, which is advantageous, for example, in terms of clarity when driving with a remote control.
  • the entire pump structure can be arranged essentially centrally on the chassis.
  • the pump structure may comprise a housing in which the pump device is accommodated, the housing sitting centrally on the chassis and the pump device being arranged off-center with respect to the longitudinal axis of the housing.
  • the pump device can include one or more delivery cylinders, which pump thick matter into a delivery line and are in particular hydraulically driven.
  • the delivery cylinder or cylinders preferably run parallel to the longitudinal axis of the pump device.
  • the thick matter pump can be designed as a caterpillar thick matter pump with a crawler chassis, which can, for example, include two chassis ships or caterpillar ships. In this embodiment, which is particularly suitable for use on construction sites when the working position is changed frequently, the thick matter pump can be remotely controlled.
  • the thick matter pump can be designed as a trailer pump with preferably two (or more) wheels and a trailer coupling. Additional support feet can be provided here on the chassis for stable storage of the thick matter pump during use.
  • the pump structure comprises a feed funnel for supplying thick matter to the pump device, the overall width of the thick matter pump being limited on one side by the feed funnel.
  • the feeding funnel is generally a thick matter collection container which, despite its name, does not necessarily have to be funnel-shaped, but is preferably so.
  • the feed funnel is preferably arranged centrally to the longitudinal axis of the pump device.
  • the longitudinal axes of the pump device and the feed hopper can coincide here, although it should be noted that the feed hopper does not have to be symmetrical.
  • the feed hopper is preferably on a rough scale, ie essentially symmetrical.
  • the overall width of the thick matter pump can be limited on one side by a wall of the feed hopper or by a component connected to it and, in this case, part of the feed hopper, such as an agitator motor.
  • the pump structure comprises a delivery line into which thick matter can be conveyed by means of the pump device.
  • the delivery line runs laterally along the thick matter pump from back to front and is preferably connected to or connected to a rear wall of the feed hopper via a folding arch that can be opened in particular.
  • the total width of the thick matter pump is limited on one side by the delivery line. The latter is in particular a pipeline.
  • the delivery line can run on the side of the thick matter pump to which the pump device has moved due to its off-center placement. However, it preferably runs on the opposite side of the thick matter pump. Furthermore, the delivery line can have a connection at the front for a further thick material line, for example a delivery hose line.
  • the total width of the thick matter pump is limited on one side by the feed hopper and on the other side by the delivery line.
  • the pump structure or the pump device thus moves as close as possible to the side of the thick matter pump, so that the operating and maintenance personnel can reach the maintenance points of the pump device comfortably and without having to bend over the chassis or other protruding parts of the thick matter pump. Furthermore, there are no unnecessary overhangs, but the installation space is optimally used, so that there is a better overview on the construction site.
  • a tank, a motor and / or a storage tank is arranged, which does not protrude laterally beyond the delivery line and which preferably lies between the pump device and the delivery line is arranged.
  • other large components such as a device, parts and/or tool box for the thick matter pump can also be arranged there.
  • the off-center arrangement of the pump device frees up installation space, in particular between the pump device and the delivery line running on the outside, which can conveniently be used to accommodate bulky components of the thick matter pump.
  • the components may be housed in a common housing with the pump device or in a separate housing or housings.
  • the pump structure does not protrude beyond the chassis on one side, preferably on both sides (i.e. does not have an overhang).
  • the maximum width of the pump structure corresponds to the maximum width of the chassis, so that there are no overhangs on either side due to the pump structure or the delivery line and the feed hopper.
  • the machine width i.e. the width of the thick matter pump, corresponds to the width of the pump structure (including feed hopper and delivery line).
  • the pump device comprises two delivery cylinders connected to the feed hopper, which can be driven in such a way that one delivery cylinder carries out a suction stroke and sucks thick matter out of the feed hopper, while at the same time the other delivery cylinder carries out a pump stroke and feeds thick matter into the Delivery line pumps.
  • the delivery cylinders are preferably hydraulically driven.
  • the delivery cylinders are preferably connected to a front wall of the feed hopper, which is opposite the rear wall into which the delivery line opens.
  • One or more agitators for forced feeding can also be installed in the feed hopper of the thick matter stored therein can be provided to the suction openings of the delivery cylinders.
  • the pump structure comprises a pipe switch, which is preferably pivotally mounted on the feed hopper and which can be driven in such a way that it alternately connects the delivery line to the delivery cylinder, which each carries out a pump stroke.
  • the pipe switch can be designed as an S-pipe and is preferably located inside the feed hopper. It can be driven or pivoted back and forth by means of one or more hydraulic swivel cylinders.
  • the pump device comprises a water tank for visual inspection and maintenance of at least one delivery cylinder of the pump device, the pump device being arranged and designed in such a way that the water tank can be seen and accessed from outside the thick matter pump.
  • the water tank is in particular openable and forms a control and maintenance point of the pump device, which is arranged in the area of the side of the thick matter pump due to its off-center arrangement and is therefore easily accessible. For example, system leaks can be discovered using the openable water tank or wear parts of the delivery cylinders such as their delivery pistons can be replaced or repaired.
  • the pump device is at least partially arranged in a housing of the pump structure and is preferably arranged laterally offset from the longitudinal axis of the housing.
  • the housing can therefore sit centrally on the chassis, while the pump device is arranged off-center to the chassis and the housing.
  • the housing ensures noise reduction and protection from environmental conditions or weather and can be designed as a sheet metal housing. It may have one or more flaps to provide access to one or more maintenance and/or operating points.
  • a ventilation grille can be provided for sucking in or blowing out air for cooling.
  • the thick matter pump can also have a control station, in particular arranged laterally, for operating the thick matter pump.
  • the control station is preferably arranged in such a way that it does not protrude beyond the pump structure, in particular not beyond the feed hopper or the delivery line.
  • the undercarriage is a crawler undercarriage with two crawler undercarriage ships.
  • the pump structure extends into an area above one or more crawler ships. Due to the eccentricity of the pump structure according to the invention, the sometimes generally unused installation space above the crawler chassis can be used for the pump structure.
  • the thick matter pump comprises a maintenance point, in particular a water tank of the pump device, and/or an energy generation unit, for example a motor (combustion engine or electric motor) and/or a battery, and/or a control cabinet and/or another machine component, for example an access for a battery disconnector, a jump starter or an ignition, and/or a storage space, for example a toolbox, a storage box or a radio remote control tray, which is/are accessible from a single side of the thick matter pump, in particular on a side limited by the pump structure .
  • the thick matter pump can include a lashing device for attachment to/in a container.
  • the Figure 1 shows a preferred embodiment of the thick matter pump 10 according to the invention in a side view.
  • a horizontal section through the thick matter pump 10 at the level of line AA is in the Figure 2 shown in a top view.
  • the thick matter pump 10 is a crawler concrete pump (in the sense of a self-propelled mobile concrete pump without a distribution boom) with two crawler chassis ships 14, which are connected to a frame structure 12, in particular designed as a steel frame, which, like the crawler chassis ships 14, is part of the Chassis of the thick matter pump 10 is.
  • a frame structure 12 does not necessarily have to be provided.
  • the thick matter to be conveyed here: concrete
  • the thick matter to be conveyed can be filled into the funnel-shaped feed hopper 22 via an upper opening, which is pumped into the delivery line 24 by means of the pump device 20 and transported to the place of use becomes.
  • the pump device 20 which in the Figure 2 can be seen, comprises two delivery cylinders 30 running parallel to the longitudinal axis L1 of the chassis, which are connected to a front wall of the feed hopper 22 and each include an axially displaceably mounted delivery piston.
  • the delivery cylinders 30 can be driven hydraulically via drive cylinders 32 in such a way that one of the delivery cylinders 30 sucks concrete from the feed hopper 22 (suction stroke), while the other delivery cylinder 30 pumps the previously sucked concrete into the delivery line 24 (pump stroke).
  • the suction and pump strokes alternate with each delivery cylinder 30.
  • a pipe switch which is pivotably mounted in the loading funnel 22, is synchronized with the pumping and suction strokes of the delivery cylinders 30 in such a way that it connects the delivery cylinder 30, which is currently executing a pumping stroke, with the delivery line 24, which opens into the rear wall of the loading funnel 22 opposite the front wall.
  • the feed hopper 22 includes two laterally arranged agitators 28, which mix the concrete and move it to the conveyor cylinders 30.
  • on the underside of the loading hopper 22 there is also an opening 23 which can be closed by a lockable flap for quickly emptying the loading hopper 22.
  • the axially movable delivery pistons are each connected to the associated drive cylinder 32 via a piston rod.
  • the front sides of the delivery pistons come into contact with the concrete, while the chambers of the delivery cylinders 30 facing away from the concrete are filled with water.
  • a common water tank 34 is arranged between the delivery cylinders 30 and the drive cylinders 32, through which the piston rods of the delivery pistons run.
  • the water in the water tank 34 moves in alternating delivery mode between the two delivery cylinders 30 and is in contact with the backs of the delivery pistons facing away from the loading funnel 22. In addition to cooling the delivery cylinders, this also serves to provide a maintenance point for the pump device 20 that is easily accessible by opening the water tank 34 and through which, for example, the delivery pistons can be serviced or replaced.
  • the pump structure and also the pump device are usually arranged centrally to the longitudinal axis of the chassis.
  • the central position almost necessarily results from the free space between the vehicle or body frame for installation.
  • the aim is to have a central center of gravity for the road-moving device.
  • the center of gravity of the concrete pump can be achieved, for example, by appropriately positioning other heavy machine elements (tanks, coolers). Access to the water tank of the pump device is ensured via appropriate platforms and free spaces above the water tank.
  • the pump structure is generally not important for truck-mounted concrete pumps.
  • the pump device 20 is therefore arranged off-center, ie laterally offset from the longitudinal axis L1 of the chassis (which in the exemplary embodiment shown also corresponds to the longitudinal axis of the frame structure 12).
  • the longitudinal axis L2 of the pump device 20 which runs parallel to and centrally between the delivery cylinders 30 and, in this exemplary embodiment, centrally (in plan view) through the feed funnel 22, has a clear offset or distance from the longitudinal axis L1 of the chassis ( see. Figure 2 ).
  • the housing 18 is arranged centrally to the longitudinal axis L1, so that the pump device 20 is also offset from the surrounding housing 18 or arranged off-center.
  • the pump device 20 and the feed hopper 22 move completely to one side (in the Figure 2 upward) of the thick matter pump 10, so that the corresponding side wall of the feed hopper 22 limits the width of the thick matter pump 10 on this side.
  • the width of the chassis essentially corresponds to the width of the entire pump structure 16 (i.e including feed hopper 22 and delivery line 24). This results in better access to the maintenance points of the pump structure 16 and a more compact structure of the thick matter pump 10, which leads to better clarity on the construction site.
  • the space 40 freed up by the off-center arrangement of the pump device 20 between the pump structure 20 and the delivery line 24 (cf. the hatched area 40 in the Figure 2 ), which in the present exemplary embodiment lies within the housing 18, but does not have to, for additional components of the thick matter pump 10.
  • These can be large components such as tanks, engines or storage units, or simply storage space for parts, tools or the like.
  • the off-center arrangement of the pump structure 20 according to the invention is not limited to crawler concrete pumps and trailer concrete pumps and can also be used, for example, in stationary concrete pumps.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Die vorliegende Erfindung betrifft eine Dickstoffpumpe, insbesondere Betonpumpe, nach dem Oberbegriff des Anspruchs 1.The present invention relates to a thick matter pump, in particular a concrete pump, according to the preamble of claim 1.

Zur Förderung von Dickstoffen wie Beton werden üblicherweise spezielle Dickstofffördervorrichtungen bzw. Dickstoffpumpen eingesetzt, die mittels hydraulisch angetriebener Förderzylinder den Dickstoff von einem Sammelbehälter bzw. Beschickungstrichter in eine Förderleitung pumpen. Siehe DE102019107006 A1 , die eine Betonpumpe nach dem Stand der Technik offenbart.To convey thick matter such as concrete, special thick matter conveying devices or thick matter pumps are usually used, which use hydraulically driven delivery cylinders to pump the thick matter from a collecting container or feed hopper into a delivery line. Please refer DE102019107006 A1 , which discloses a prior art concrete pump.

Aus dem Stand der Technik sind unterschiedliche Arten von mobilen und stationären Betonpumpen bekannt, welche mit einem Fahrwerk ausgestattet sein können. Derartige Betonpumpen können selbstfahrend ausgeführt sein (z.B. bei Autobetonpumpen oder Raupenbetonpumpen) oder gezogen oder anderweitig bewegt werden. So ist bei Autobetonpumpen das Pumpensystem bzw. der Pumpenaufbau auf ein handelsübliches Trägerfahrgestell montiert und mit einem Verteilermast kombiniert. Mobile Betonpumpen ohne Verteilermast umfassen typischerweise einen Pumpenaufbau, welcher die eigentliche Pumpenvorrichtung bzw. Pumpe, einen Beschickungstrichter zum Zuführen von Dickstoff sowie eine Förderleitung, in welche der Dickstoff hineingepumpt wird, umfasst und auf einem Fahrwerk montiert ist. Bei dem Fahrwerk kann es sich beispielsweise um ein Raupenfahrwerk oder eine Anhängerachse mit Rädern handeln. Darüber hinaus sind auch stationäre Betonpumpen mit Fahrwerk und darauf montiertem Pumpenaufbau bekannt.Different types of mobile and stationary concrete pumps are known from the prior art, which can be equipped with a chassis. Such concrete pumps can be self-propelled (e.g. truck-mounted concrete pumps or crawler concrete pumps) or can be pulled or otherwise moved. In the case of truck-mounted concrete pumps, the pump system or pump structure is mounted on a standard carrier chassis and combined with a distribution boom. Mobile concrete pumps without a distribution boom typically include a pump structure, which includes the actual pump device or pump, a feed hopper for feeding thick matter and a delivery line into which the thick matter is pumped, and is mounted on a chassis. With the chassis For example, it can be a crawler chassis or a trailer axle with wheels. In addition, stationary concrete pumps with a chassis and a pump structure mounted on it are also known.

Viele bekannte Betonpumpen sind hinsichtlich einer raumsparenden Bauteilanordnung meist nicht oder kaum optimiert und stellen daher entsprechend sperrige Maschinen dar. Mobile Betonpumpen ohne Verteilermast und mit Raupenfahrwerk (sog. Raupenbetonpumpen) lassen sich beispielsweise meist per Fernsteuerung oder über eine Bedienung an der Maschine selbst bewegen, sodass raumgreifende Abmaße hinderlich bezüglich der Übersichtlichkeit sind. Insbesondere bei Betonpumpen mit einem Förderleitungsabgang am Beschickungstrichter, bei denen die Förderleitung seitlich am Pumpenaufbau vorbei nach vorne verlegt ist (i.d.R. bei Raupenbetonpumpen), d.h. mit einem vorderen Förderleitungsabgang der Maschine, wird die Gesamtbreite der Betonpumpe durch den Pumpenaufbau einschließlich der Förderleitung bestimmt. Die Problematik eines sperrigen Pumpenaufbaus ergibt sich jedoch auch bei anderen Betonpumpentypen, beispielsweise bei Anhängerbetonpumpen oder einigen Stationärbetonpumpentypen.Many well-known concrete pumps are usually not or hardly optimized with regard to a space-saving component arrangement and are therefore correspondingly bulky machines. Mobile concrete pumps without a distribution boom and with a crawler chassis (so-called crawler concrete pumps), for example, can usually be moved by remote control or via an operation on the machine itself, so that Large dimensions are a hindrance to clarity. Particularly in the case of concrete pumps with a delivery line outlet on the loading hopper, in which the delivery line is routed past the pump structure to the front (usually with crawler concrete pumps), i.e. with a front delivery line outlet on the machine, the overall width of the concrete pump is determined by the pump structure including the delivery line. However, the problem of a bulky pump structure also arises with other types of concrete pumps, for example trailer concrete pumps or some types of stationary concrete pumps.

Hierbei ist oftmals auch der Zugang zu den Komponenten der Pumpenvorrichtung, insbesondere zum Wasserkasten als Wartungs- und Kontrollstelle, aber auch bei der Montage, erschwert, da sich das Bedien- bzw. Wartungspersonal über das Fahrwerk beugen muss.Access to the components of the pump device, in particular to the water tank as a maintenance and control point, but also during assembly, is often difficult because the operating or maintenance personnel have to bend over the chassis.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Dickstoffpumpe der eingangs genannten Art bereitzustellen, deren Pumpenaufbau weniger sperrig ist bzw. den eingenommenen Raum optimal ausnutzt und deren Pumpenvorrichtung für Wartungs- und Kontrollarbeiten besser zugänglich ist.The present invention is therefore based on the object of providing a thick matter pump of the type mentioned at the outset, whose pump structure is less bulky or makes optimal use of the space occupied and whose pump device is more accessible for maintenance and control work.

Erfindungsgemäß wird diese Aufgabe durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Demnach wird erfindungsgemäß eine Dickstoffpumpe, insbesondere eine Betonpumpe, vorgeschlagen, welche ein Fahrwerk und einen am Fahrwerk befestigten Pumpenaufbau mit einer Pumpenvorrichtung zur Förderung von Dickstoff, insbesondere Beton, umfasst. Erfindungsgemäß ist die Pumpenvorrichtung zur Längsachse des Fahrwerks seitlich versetzt angeordnet, wobei die Gesamtbreite der Dickstoffpumpe auf einer Seite, vorzugsweise auf beiden Seiten, durch den Pumpenaufbau begrenzt wird.According to the invention, this object is achieved by a device having the features of claim 1. Accordingly, according to the invention, a thick matter pump, in particular a concrete pump, is proposed, which has a chassis and a pump structure attached to the chassis with a pump device for conveying Thick matter, especially concrete, includes. According to the invention, the pump device is arranged laterally offset from the longitudinal axis of the chassis, with the overall width of the thick matter pump being limited on one side, preferably on both sides, by the pump structure.

Das Fahrwerk kann einen Fahrwerksrahmen bzw. eine Rahmenstruktur zur Aufnahme von Maschinenelementen wie z.B. Fahrwerkskomponenten umfassen. Das Fahrwerk kann beispielsweise ein Raupenfahrwerk mit mehreren (insbesondere zwei) Raupenfahrwerksschiffen oder ein Anhängerfahrwerk mit mindestens einer Radachse sein.The chassis can include a chassis frame or a frame structure for accommodating machine elements such as chassis components. The undercarriage can, for example, be a crawler undercarriage with several (in particular two) crawler undercarriage vessels or a trailer undercarriage with at least one wheel axle.

Die erfindungsgemäße Idee besteht also darin, die Pumpenvorrichtung außermittig auf dem Fahrwerk anzuordnen, sodass sie Längsachse der Pumpenvorrichtung von der Längsachse des Fahrwerks beabstandet ist. Die Längsachsen sind dabei seitlich versetzt und verlaufen vorzugsweise parallel zueinander. Auf der Seite der Dickstoffpumpe, die durch den Pumpenaufbau begrenzt wird, ragt der Fahrzeugrahmen nicht über die Außenkontur des Pumpenaufbaus hinaus.The idea according to the invention is therefore to arrange the pump device off-center on the chassis, so that the longitudinal axis of the pump device is spaced from the longitudinal axis of the chassis. The longitudinal axes are laterally offset and preferably run parallel to one another. On the side of the thick matter pump, which is limited by the pump structure, the vehicle frame does not protrude beyond the outer contour of the pump structure.

Die Längsachse des Fahrwerks kann der Längsachse eines Fahrwerkrahmens bzw. einer Rahmenstruktur des Fahrwerks entsprechen. Bei den Längsachsen des Fahrwerks und des Pumpenaufbaus handelt es sich insbesondere um deren Mittelachsen.The longitudinal axis of the chassis can correspond to the longitudinal axis of a chassis frame or a frame structure of the chassis. The longitudinal axes of the chassis and the pump structure are, in particular, their central axes.

Die Pumpenvorrichtung stellt die eigentliche "Pumpe" der vorliegend als "Dickstoffpumpe" bezeichneten Baumaschine dar, mittels welcher der Dickstoff gefördert bzw. gepumpt wird, und kann beispielsweise neben einer Pumpeinheit zum Ansaugen und Pumpen von Dickstoff weitere Elemente wie eine Antriebseinheit zur Energieversorgung der Pumpenvorrichtung, einen Beschickungstrichter und/oder eine Förderleitung umfassen. Um Abgrenzungsschwierigkeiten zwischen der "Betonpumpe" als eigentlicher Pumpe und somit als Teileinheit der Baumaschine einerseits und der "Betonpumpe" als Baumaschine selbst zu vermeiden, wird die eigentliche Pumpe daher vorliegend als "Pumpenvorrichtung" bezeichnet, wohingegen die Begriffe "Dickstoffpumpe" oder "Betonpumpe" für die ganze Baumaschine stehen.The pump device represents the actual "pump" of the construction machine, referred to here as a "thick matter pump", by means of which the thick matter is conveyed or pumped, and can, for example, in addition to a pump unit for sucking and pumping thick matter, other elements such as a drive unit for supplying energy to the pump device, include a feed hopper and/or a delivery line. In order to avoid demarcation difficulties between the "concrete pump" as the actual pump and thus as a sub-unit of the construction machine on the one hand and the "concrete pump" as the construction machine itself, the actual pump is therefore referred to here as a “pump device”, whereas the terms “thick matter pump” or “concrete pump” stand for the entire construction machine.

Der außermittige Einbau der Pumpenvorrichtung bewirkt, dass dessen Montage- und Kontrollstellen stark auf eine Fahrzeugseite rücken und so von der Außenseite deutlich besser zugänglich sind als bisher - die Maschinengestaltung der Dickstoffpumpe ist montage- und servicefreundlicher. Die Begrenzung der Gesamtbreite durch den Pumpenaufbau stellt zudem insbesondere sicher, dass das Wartungs- und Bedienpersonal einen direkten Zugang zu den Wartungs- und Kontrollstellen hat und die Rahmenstruktur oder das Fahrwerk diesen Zugang nicht behindert.The off-center installation of the pump device means that its assembly and inspection points are moved to one side of the vehicle and are therefore much more accessible from the outside than before - the machine design of the thick matter pump is easier to assemble and service. The limitation of the overall width by the pump structure also ensures in particular that the maintenance and operating personnel have direct access to the maintenance and control points and that the frame structure or the chassis does not hinder this access.

Die außermittige Anordnung der Pumpenvorrichtung ermöglicht durch die schmalere Gesamtmaschine auch eine bessere Zugänglichkeit zu Wartungs- und Servicestellen eines eventuell vorgesehenen Verbrennungsmotors der Dickstoffpumpe, etwa zum Filter- oder Ölwechsel. Der Motor ist insbesondere auf dieselbe Seite der Dickstoffpumpe verschoben wie die Pumpenvorrichtung. Zudem kann die sich aus der außermittigen Anordnung der Pumpenvorrichtung ergebende raumsparende Bauteilanordnung auch vorteilhaft sein beim Transport der Dickstoffpumpe, beispielsweise auf einem LKW oder in einem ISO-Seecontainer.The off-center arrangement of the pump device also enables better access to maintenance and service points of any internal combustion engine of the thick matter pump, for example for changing filters or oil, due to the narrower overall machine. In particular, the motor is moved to the same side of the thick matter pump as the pump device. In addition, the space-saving component arrangement resulting from the off-center arrangement of the pump device can also be advantageous when transporting the thick matter pump, for example on a truck or in an ISO sea container.

Des Weiteren bewirkt die außermittige Anordnung der Pumpenvorrichtung einen Zugewinn an größeren Bauräumen auf der Seite der Dickstoffpumpe, von der die Pumpenvorrichtung wegrückt - etwa nutzbar zur Unterbringung weiterer benötigter Großkomponenten des Pumpenaufbaus bzw. raumgreifender Maschinenelemente der Dickstoffpumpe wie Motor(en), Kühler oder Tank(s). Durch geschickte Bauraumnutzug lassen sich die Abmaße der gesamten Maschine weiter senken, was einen Zugewinn an Übersichtlichkeit und Sicherheit beim Verfahren der Dickstoffpumpe auf der Baustelle mit sich bringt. Auch lässt sich durch die geschickte Bauraumnutzung ggf. die Maschinenhöhe senken, was beispielsweise hinsichtlich der Übersichtlichkeit beim Fahren mit Fernbedienung vorteilhaft ist.Furthermore, the off-center arrangement of the pump device results in an increase in larger installation space on the side of the thick matter pump, from which the pump device moves away - for example usable to accommodate other required large components of the pump structure or space-consuming machine elements of the thick matter pump such as motor(s), cooler or tank ( s). Through clever use of the installation space, the dimensions of the entire machine can be further reduced, which brings with it an increase in clarity and safety when moving the thick matter pump on the construction site. The machine height can also be reduced through clever use of installation space, which is advantageous, for example, in terms of clarity when driving with a remote control.

Vorteilhafte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung.Advantageous embodiments of the invention result from the subclaims and the following description.

Obwohl die Pumpenvorrichtung außermittig, d.h. seitlich versetzt zur Längsachse des Fahrwerks angeordnet ist, kann der gesamte Pumpenaufbau im Wesentlichen mittig auf dem Fahrwerk angeordnet sein. Beispielsweise kann der Pumpenaufbau ein Gehäuse umfassen, in welchem die Pumpenvorrichtung untergebracht ist, wobei das Gehäuse mittig auf dem Fahrwerk sitzt und die Pumpenvorrichtung in Bezug auf die Längsachse des Gehäuses außermittig angeordnet ist.Although the pump device is arranged off-center, i.e. laterally offset from the longitudinal axis of the chassis, the entire pump structure can be arranged essentially centrally on the chassis. For example, the pump structure may comprise a housing in which the pump device is accommodated, the housing sitting centrally on the chassis and the pump device being arranged off-center with respect to the longitudinal axis of the housing.

Die Pumpenvorrichtung kann einen oder mehrere Förderzylinder umfassen, welche Dickstoff in eine Förderleitung pumpen und insbesondere hydraulisch angetrieben sind. Der oder die Förderzylinder verlaufen vorzugsweise parallel zur Längsachse der Pumpenvorrichtung.The pump device can include one or more delivery cylinders, which pump thick matter into a delivery line and are in particular hydraulically driven. The delivery cylinder or cylinders preferably run parallel to the longitudinal axis of the pump device.

Die Dickstoffpumpe kann als Raupendickstoffpumpe mit einem Raupenfahrwerk ausgebildet sein, welches beispielsweise zwei Fahrwerksschiffe bzw. Raupenschiffe umfassen kann. In dieser Ausgestaltung, welche sich besonders für den Baustelleneinsatz bei häufigem Wechsel der Arbeitsposition eignet, kann die Dickstoffpumpe fernsteuerbar sein. Alternativ kann die Dickstoffpumpe als Anhängerpumpe mit vorzugsweise zwei (oder auch mehr) Rädern und einer Anhängerkupplung ausgebildet sein. Hier können zusätzlich Abstützfüße zur stabilen Lagerung der Dickstoffpumpe während des Arbeitseinsatzes am Fahrwerk vorgesehen sein.The thick matter pump can be designed as a caterpillar thick matter pump with a crawler chassis, which can, for example, include two chassis ships or caterpillar ships. In this embodiment, which is particularly suitable for use on construction sites when the working position is changed frequently, the thick matter pump can be remotely controlled. Alternatively, the thick matter pump can be designed as a trailer pump with preferably two (or more) wheels and a trailer coupling. Additional support feet can be provided here on the chassis for stable storage of the thick matter pump during use.

In einer möglichen Ausführungsform ist vorgesehen, dass der Pumpenaufbau einen Beschickungstrichter zum Zuführen von Dickstoff zur Pumpenvorrichtung umfasst, wobei die Gesamtbreite der Dickstoffpumpe auf einer Seite durch den Beschickungstrichter begrenzt ist. Bei dem Beschickungstrichter handelt es sich ganz allgemein um einen Dickstoffsammelbehälter, welcher trotz seiner Benennung nicht zwangsläufig trichterförmig ausgeführt sein muss, dies aber vorzugsweise ist. Der Beschickungstrichter ist vorzugsweise mittig zur Längsachse der Pumpenvorrichtung angeordnet. Die Längsachsen der Pumpenvorrichtung und des Beschickungstrichters können hierbei zusammenfallen, wobei anzumerken ist, dass der Beschickungstrichter nicht symmetrisch sein muss. Der Beschickungstrichter ist aber vorzugsweise im groben Maßstab, d.h. im Wesentlichen symmetrisch. Allerdings können z.B. rechtslinks-Unterschiede beim Trichterrand oder bei der Anbringung von Bedienelementen bestehen. Die Gesamtbreite der Dickstoffpumpe kann auf der einen Seite durch eine Wandung des Beschickungstrichters oder durch ein mit diesem verbundenes und vorliegend zum Beschickungstrichter gezähltes Bauteil wie z.B. einem Rührwerksmotor begrenzt sein.In a possible embodiment it is provided that the pump structure comprises a feed funnel for supplying thick matter to the pump device, the overall width of the thick matter pump being limited on one side by the feed funnel. The feeding funnel is generally a thick matter collection container which, despite its name, does not necessarily have to be funnel-shaped, but is preferably so. The feed funnel is preferably arranged centrally to the longitudinal axis of the pump device. The longitudinal axes of the pump device and the feed hopper can coincide here, although it should be noted that the feed hopper does not have to be symmetrical. However, the feed hopper is preferably on a rough scale, ie essentially symmetrical. However, there may be, for example, right-left differences in the edge of the funnel or in the attachment of control elements. The overall width of the thick matter pump can be limited on one side by a wall of the feed hopper or by a component connected to it and, in this case, part of the feed hopper, such as an agitator motor.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass der Pumpenaufbau eine Förderleitung umfasst, in welche mittels der Pumpenvorrichtung Dickstoff förderbar ist. Die Förderleitung verläuft seitlich entlang der Dickstoffpumpe von hinten nach vorne und ist vorzugsweise über einen insbesondere öffenbaren Klappbogen an eine Rückwand des Beschickungstrichters angebunden bzw. mit dieser verbunden. Die Gesamtbreite der Dickstoffpumpe ist auf einer Seite durch die Förderleitung begrenzt. Bei letzterer handelt es sich insbesondere um eine Rohrleitung.In a further possible embodiment it is provided that the pump structure comprises a delivery line into which thick matter can be conveyed by means of the pump device. The delivery line runs laterally along the thick matter pump from back to front and is preferably connected to or connected to a rear wall of the feed hopper via a folding arch that can be opened in particular. The total width of the thick matter pump is limited on one side by the delivery line. The latter is in particular a pipeline.

Die Förderleitung kann auf der Seite der Dickstoffpumpe, an die durch ihre außermittige Platzierung die Pumpenvorrichtung gerückt ist, verlaufen. Bevorzugt verläuft sie aber an der gegenüberliegenden Seite der Dickstoffpumpe. Ferner kann die Förderleitung vorne einen Anschluss für eine weiterführende Dickstoffleitung, beispielsweise eine Förderschlauchleitung, aufweisen.The delivery line can run on the side of the thick matter pump to which the pump device has moved due to its off-center placement. However, it preferably runs on the opposite side of the thick matter pump. Furthermore, the delivery line can have a connection at the front for a further thick material line, for example a delivery hose line.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass die Gesamtbreite der Dickstoffpumpe auf der einen Seite durch den Beschickungstrichter und auf der anderen Seite durch die Förderleitung begrenzt ist. Der Pumpenaufbau bzw. die Pumpenvorrichtung rückt somit maximal an die Seite der Dickstoffpumpe heran, sodass das Bedien- und Wartungspersonal bequem und ohne sich über das Fahrwerk oder andere überstehende Teile der Dickstoffpumpe beugen zu müssen die Wartungsstellen der Pumpenvorrichtung erreichen kann. Ferner bestehen keine unnötigen Überstände, sondern die Bauräume sind optimal ausgenutzt, sodass sich auf der Baustelle eine bessere Übersichtlichkeit ergibt.In a further possible embodiment it is provided that the total width of the thick matter pump is limited on one side by the feed hopper and on the other side by the delivery line. The pump structure or the pump device thus moves as close as possible to the side of the thick matter pump, so that the operating and maintenance personnel can reach the maintenance points of the pump device comfortably and without having to bend over the chassis or other protruding parts of the thick matter pump. Furthermore, there are no unnecessary overhangs, but the installation space is optimally used, so that there is a better overview on the construction site.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass auf der Seite der Pumpenvorrichtung, auf der die Förderleitung verläuft, ein Tank, ein Motor und/oder ein Speicher angeordnet ist, welcher seitlich nicht über die Förderleitung hinausragt und welcher vorzugsweise zwischen der Pumpenvorrichtung und der Förderleitung angeordnet ist. Alternativ können auch andere Großkomponenten wie z.B. ein Geräte-, Teile- und/oder Werkzeugkasten der Dickstoffpumpe dort angeordnet sein. Durch die außermittige Anordnung der Pumpenvorrichtung wird Bauraum frei, insbesondere zwischen der Pumpenvorrichtung und der seitlich außen verlaufenden Förderleitung, welcher praktischerweise für die Unterbringung sperriger Komponenten der Dickstoffpumpe genutzt werden kann. Die Komponenten können in einem gemeinsamen Gehäuse mit der Pumpenvorrichtung oder in einem separaten Gehäuse bzw. separaten Gehäusen untergebracht sein.In a further possible embodiment it is provided that on the side of the pump device on which the delivery line runs, a tank, a motor and / or a storage tank is arranged, which does not protrude laterally beyond the delivery line and which preferably lies between the pump device and the delivery line is arranged. Alternatively, other large components such as a device, parts and/or tool box for the thick matter pump can also be arranged there. The off-center arrangement of the pump device frees up installation space, in particular between the pump device and the delivery line running on the outside, which can conveniently be used to accommodate bulky components of the thick matter pump. The components may be housed in a common housing with the pump device or in a separate housing or housings.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass der Pumpenaufbau auf einer Seite, vorzugsweise auf beiden Seiten, nicht über das Fahrwerk hinausragt (also keinen Überhang aufweist). Insbesondere entspricht die maximale Breite des Pumpenaufbaus der maximalen Breite des Fahrwerks, sodass auf beiden Seiten keine Überhänge durch den Pumpenaufbau bzw. die Förderleitung und den Beschickungstrichter bestehen. Die Maschinenbreite, d.h. die Breite der Dickstoffpumpe, entspricht somit der Breite des Pumpenaufbaus (inklusive Beschickungstrichter und Förderleitung).In a further possible embodiment it is provided that the pump structure does not protrude beyond the chassis on one side, preferably on both sides (i.e. does not have an overhang). In particular, the maximum width of the pump structure corresponds to the maximum width of the chassis, so that there are no overhangs on either side due to the pump structure or the delivery line and the feed hopper. The machine width, i.e. the width of the thick matter pump, corresponds to the width of the pump structure (including feed hopper and delivery line).

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass die Pumpenvorrichtung zwei an den Beschickungstrichter angebundene Förderzylinder umfasst, welche derart antreibbar sind, dass der eine Förderzylinder einen Saughub ausführt und Dickstoff aus dem Beschickungstrichter ansaugt, während gleichzeitig der andere Förderzylinder einen Pumphub ausführt und Dickstoff in die Förderleitung pumpt. Vorzugsweise sind die Förderzylinder hydraulisch angetrieben. Die Förderzylinder sind vorzugsweise an eine Vorderwand des Beschickungstrichters angebunden, welche der Rückwand, in die die Förderleitung mündet, gegenüberliegt. Im Beschickungstrichter können ferner ein oder mehrere Rührwerke zur Zwangszuführung des darin gelagerten Dickstoffs zu den Ansaugöffnungen der Förderzylinder vorgesehen sein.In a further possible embodiment it is provided that the pump device comprises two delivery cylinders connected to the feed hopper, which can be driven in such a way that one delivery cylinder carries out a suction stroke and sucks thick matter out of the feed hopper, while at the same time the other delivery cylinder carries out a pump stroke and feeds thick matter into the Delivery line pumps. The delivery cylinders are preferably hydraulically driven. The delivery cylinders are preferably connected to a front wall of the feed hopper, which is opposite the rear wall into which the delivery line opens. One or more agitators for forced feeding can also be installed in the feed hopper of the thick matter stored therein can be provided to the suction openings of the delivery cylinders.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass der Pumpenaufbau eine Rohrweiche umfasst, welche vorzugsweise am Beschickungstrichter schwenkbar gelagert ist und welche derart antreibbar ist, dass sie die Förderleitung abwechselnd mit dem jeweils einen Pumphub ausführenden Förderzylinder verbindet. Die Rohrweiche kann als S-Rohr ausgebildet sein und befindet sich vorzugsweise innerhalb des Beschickungstrichters. Sie kann mittels eines oder mehrerer hydraulischer Schwenkzylinder antreibbar bzw. hin- und herschwenkbar sein.In a further possible embodiment, it is provided that the pump structure comprises a pipe switch, which is preferably pivotally mounted on the feed hopper and which can be driven in such a way that it alternately connects the delivery line to the delivery cylinder, which each carries out a pump stroke. The pipe switch can be designed as an S-pipe and is preferably located inside the feed hopper. It can be driven or pivoted back and forth by means of one or more hydraulic swivel cylinders.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass die Pumpenvorrichtung einen Wasserkasten zur Sichtkontrolle und Wartung mindestens eines Förderzylinders der Pumpenvorrichtung umfasst, wobei die Pumpenvorrichtung derart angeordnet und ausgebildet ist, dass der Wasserkasten von außerhalb der Dickstoffpumpe einsehbar und zugänglich ist. Der Wasserkasten ist insbesondere öffenbar und bildet eine Kontroll- und Wartungsstelle der Pumpenvorrichtung, welche durch deren außermittige Anordnung im Bereich der Seite der Dickstoffpumpe angeordnet und daher leicht zugänglich ist. Über den öffenbaren Wasserkasten können z.B. Systemleckagen entdeckt oder Verschleißteile der Förderzylinder wie deren Förderkolben getauscht oder repariert werden.In a further possible embodiment it is provided that the pump device comprises a water tank for visual inspection and maintenance of at least one delivery cylinder of the pump device, the pump device being arranged and designed in such a way that the water tank can be seen and accessed from outside the thick matter pump. The water tank is in particular openable and forms a control and maintenance point of the pump device, which is arranged in the area of the side of the thick matter pump due to its off-center arrangement and is therefore easily accessible. For example, system leaks can be discovered using the openable water tank or wear parts of the delivery cylinders such as their delivery pistons can be replaced or repaired.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass die Pumpenvorrichtung zumindest teilweise in einem Gehäuse des Pumpenaufbaus angeordnet und vorzugsweise zur Längsachse des Gehäuses seitlich versetzt angeordnet ist. Das Gehäuse kann also mittig auf dem Fahrwerk sitzen, während die Pumpenvorrichtung außermittig zum Fahrwerk und zum Gehäuse angeordnet ist. Das Gehäuse sorgt für eine Schallreduzierung und einen Schutz vor Umweltbedingungen bzw. Wetter und kann als Blechgehäuse ausgebildet sein. Es kann eine oder mehrere Klappen aufweisen, um den Zugang zu einer oder mehreren Wartungs- und/oder Bedienstellen freizugeben. Ferner kann ein Lüftungsgitter zum Einsaugen oder Ausblasen von Luft für eine Kühlung vorgesehen sein.In a further possible embodiment it is provided that the pump device is at least partially arranged in a housing of the pump structure and is preferably arranged laterally offset from the longitudinal axis of the housing. The housing can therefore sit centrally on the chassis, while the pump device is arranged off-center to the chassis and the housing. The housing ensures noise reduction and protection from environmental conditions or weather and can be designed as a sheet metal housing. It may have one or more flaps to provide access to one or more maintenance and/or operating points. Furthermore, a ventilation grille can be provided for sucking in or blowing out air for cooling.

Die Dickstoffpumpe kann ferner einen insbesondere seitlich angeordneten Bedienstand zur Bedienung der Dickstoffpumpe aufweisen. Vorzugsweise ist der Bedienstand dabei so angeordnet, dass er nicht über den Pumpenaufbau, insbesondere nicht über den Beschickungstrichter oder die Förderleitung, hinausragt.The thick matter pump can also have a control station, in particular arranged laterally, for operating the thick matter pump. The control station is preferably arranged in such a way that it does not protrude beyond the pump structure, in particular not beyond the feed hopper or the delivery line.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass das Fahrwerk ein Raupenfahrwerk mit zwei Raupenfahrwerksschiffen ist.In a further possible embodiment it is provided that the undercarriage is a crawler undercarriage with two crawler undercarriage ships.

In einer weiteren möglichen Ausführungsform ist vorgesehen, dass sich der Pumpenaufbau in einen Bereich oberhalb eines oder mehrerer Raupenfahrwerksschiffe erstreckt. Durch die erfindungsgemäße Außermittigkeit des Pumpenaufbaus kann der bisweilen in der Regel ungenutzte Bauraum oberhalb des Raupenfahrwerks für den Pumpenaufbau genutzt werden.In a further possible embodiment it is provided that the pump structure extends into an area above one or more crawler ships. Due to the eccentricity of the pump structure according to the invention, the sometimes generally unused installation space above the crawler chassis can be used for the pump structure.

In einer weiteren möglichen Ausführungsform umfasst die Dickstoffpumpe eine Wartungsstelle, insbesondere einen Wasserkasten der Pumpenvorrichtung, und/oder eine Energieerzeugungseinheit, beispielsweise einen Motor (Verbrennungsmotor oder Elektromotor) und/oder eine Batterie, und/oder einen Schaltschrank und/oder eine sonstige Maschinenkomponente, beispielsweise einen Zugang für Batterietrenner, eine Fremdstarthilfe oder eine Zündung, und/oder einen Stauraum, beispielsweise einen Werkzeugkasten, einen Staukasten oder eine Funkfernsteuerungsablage, welcher / welche von einer einzigen Seite der Dickstoffpumpe aus zugänglich ist / sind, insbesondere auf einer durch den Pumpenaufbau begrenzten Seite. Dadurch kann die gesamte Maschine von nur einer Seite aus gewartet / inspiziert werden. Dies ist beispielsweise bei einem Containertransport vorteilhaft, wenn der Zugang zur verstauten Dickstoffpumpe begrenzt ist. In diesem Zusammenhang kann die Dickstoffpumpe eine Verzurreinrichtung für die Befestigung an / in einem Container umfassen.In a further possible embodiment, the thick matter pump comprises a maintenance point, in particular a water tank of the pump device, and/or an energy generation unit, for example a motor (combustion engine or electric motor) and/or a battery, and/or a control cabinet and/or another machine component, for example an access for a battery disconnector, a jump starter or an ignition, and/or a storage space, for example a toolbox, a storage box or a radio remote control tray, which is/are accessible from a single side of the thick matter pump, in particular on a side limited by the pump structure . This allows the entire machine to be serviced/inspected from just one side. This is advantageous, for example, when transporting containers when access to the stored solids pump is limited. In this context, the thick matter pump can include a lashing device for attachment to/in a container.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus dem nachfolgend anhand der Figuren erläuterten Ausführungsbeispiel. Es zeigen:

Figur 1:
ein Ausführungsbeispiel der erfindungsgemäßen Dickstoffpumpe in einer Seitenansicht; und
Figur 2:
eine Draufsicht auf einen horizontalen Schnitt durch die Dickstoffpumpe gemäß Figur 1 auf Höhe der Pumpenvorrichtung.
Further features, details and advantages of the invention result from the exemplary embodiment explained below with reference to the figures. Show it:
Figure 1:
an embodiment of the thick matter pump according to the invention in a side view; and
Figure 2:
a top view of a horizontal section through the thick matter pump Figure 1 at the level of the pump device.

Die Figur 1 zeigt ein bevorzugtes Ausführungsbeispiel der erfindungsgemäßen Dickstoffpumpe 10 in einer Seitenansicht. Ein horizontaler Schnitt durch die Dickstoffpumpe 10 auf Höhe der Linie A-A ist in der Figur 2 in einer Draufsicht gezeigt.The Figure 1 shows a preferred embodiment of the thick matter pump 10 according to the invention in a side view. A horizontal section through the thick matter pump 10 at the level of line AA is in the Figure 2 shown in a top view.

Bei der Dickstoffpumpe 10 handelt es sich in diesem Ausführungsbeispiel um eine Raupenbetonpumpe (im Sinne einer selbstfahrenden mobilen Betonpumpe ohne Verteilermast) mit zwei Raupenfahrwerksschiffen 14, welche mit einer insbesondere als Stahlrahmen ausgebildeten Rahmenstruktur 12 verbunden sind, die, ebenso wie die Raupenfahrwerksschiffe 14, Teil des Fahrwerks der Dickstoffpumpe 10 ist. Eine solche Rahmenstruktur 12 muss jedoch nicht zwingend vorgesehen sein. Auf dem Fahrwerk sitzt ein Pumpenaufbau 16 mit einem geschlossenen Gehäuse 18, einer darin angeordneten Pumpenvorrichtung 20 (welche die eigentliche Pumpe darstellt und auch als eigentliche "Betonpumpe" bezeichnet werden kann), einem hinten an der Dickstoffpumpe 10 angeordneten Beschickungstrichter 22 und einer von einer Rückwand des Beschickungstrichters 22 entlang einer Seite der Dickstoffpumpe 10 nach vorne verlaufenden Förderleitung 24. In den trichterförmigen Beschickungstrichter 22 ist über eine obere Öffnung der zu fördernde Dickstoff (hier: Beton) einfüllbar, welcher mittels der Pumpenvorrichtung 20 in die Förderleitung 24 gepumpt und zum Einsatzort transportiert wird.In this exemplary embodiment, the thick matter pump 10 is a crawler concrete pump (in the sense of a self-propelled mobile concrete pump without a distribution boom) with two crawler chassis ships 14, which are connected to a frame structure 12, in particular designed as a steel frame, which, like the crawler chassis ships 14, is part of the Chassis of the thick matter pump 10 is. However, such a frame structure 12 does not necessarily have to be provided. On the chassis sits a pump structure 16 with a closed housing 18, a pump device 20 arranged therein (which represents the actual pump and can also be referred to as the actual "concrete pump"), a feed hopper 22 arranged at the rear of the thick matter pump 10 and one of a rear wall of the feed hopper 22 along one side of the thick matter pump 10, which runs forwardly. The thick matter to be conveyed (here: concrete) can be filled into the funnel-shaped feed hopper 22 via an upper opening, which is pumped into the delivery line 24 by means of the pump device 20 and transported to the place of use becomes.

Die Pumpenvorrichtung 20, welche in der Figur 2 zu erkennen ist, umfasst zwei parallel zur Längsachse L1 des Fahrwerks verlaufende Förderzylinder 30, die mit einer Vorderwand des Beschickungstrichters 22 verbunden sind und jeweils einen axial verschiebbar gelagerten Förderkolben umfassen. Die Förderzylinder 30 sind hydraulisch über Antriebszylinder 32 derart antreibbar, dass jeweils einer der Förderzylinder 30 Beton aus dem Beschickungstrichter 22 ansaugt (Saughub), während der andere Förderzylinder 30 den zuvor angesaugten Beton in die Förderleitung 24 pumpt (Pumphub). Saug- und Pumphub wechseln sich bei jedem Förderzylinder 30 ab.The pump device 20, which in the Figure 2 can be seen, comprises two delivery cylinders 30 running parallel to the longitudinal axis L1 of the chassis, which are connected to a front wall of the feed hopper 22 and each include an axially displaceably mounted delivery piston. The delivery cylinders 30 can be driven hydraulically via drive cylinders 32 in such a way that one of the delivery cylinders 30 sucks concrete from the feed hopper 22 (suction stroke), while the other delivery cylinder 30 pumps the previously sucked concrete into the delivery line 24 (pump stroke). The suction and pump strokes alternate with each delivery cylinder 30.

Eine schwenkbar im Beschickungstrichter 22 gelagerte Rohrweiche ist derart mit den Pump- und Saughüben der Förderzylinder 30 synchronisiert, dass sie jeweils den gerade einen Pumphub ausführenden Förderzylinder 30 mit der Förderleitung 24 verbindet, welche in die der Vorderwand gegenüberliegende Rückwand des Beschickungstrichters 22 mündet. Ferner umfasst der Beschickungstrichter 22 zwei seitlich angeordnete Rührwerke 28, welche den Beton durchmischen und zu den Förderzylindern 30 bewegen. An der Unterseite des Beschickungstrichters 22 befindet sich in diesem Ausführungsbeispiel ferner eine durch eine verriegelbare Klappe verschließbare Öffnung 23 zur schnellen Entleerung des Beschickungstrichters 22.A pipe switch, which is pivotably mounted in the loading funnel 22, is synchronized with the pumping and suction strokes of the delivery cylinders 30 in such a way that it connects the delivery cylinder 30, which is currently executing a pumping stroke, with the delivery line 24, which opens into the rear wall of the loading funnel 22 opposite the front wall. Furthermore, the feed hopper 22 includes two laterally arranged agitators 28, which mix the concrete and move it to the conveyor cylinders 30. In this exemplary embodiment, on the underside of the loading hopper 22 there is also an opening 23 which can be closed by a lockable flap for quickly emptying the loading hopper 22.

Die axial beweglichen Förderkolben sind jeweils über eine Kolbenstange mit dem zugeordneten Antriebszylinder 32 verbunden. Die Vorderseiten der Förderkolben kommen mit dem Beton in Kontakt, während die dem Beton abgewandten Kammern der Förderzylinder 30 mit Wasser gefüllt sind. Zwischen den Förderzylindern 30 und den Antriebszylindern 32 ist ein gemeinsamer Wasserkasten 34 angeordnet, durch welchen die Kolbenstangen der Förderkolben verlaufen. Das Wasser des Wasserkastens 34 bewegt sich im alternierenden Förderbetrieb zwischen den beiden Förderzylindern 30 und steht mit den dem Beschickungstrichter 22 abgewandten Rückseiten der Förderkolben in Kontakt. Dies dient neben einer Kühlung der Förderzylinder auch der Bereitstellung einer durch Öffnung des Wasserkastens 34 gut zugänglichen Wartungsstelle für die Pumpenvorrichtung 20, über die beispielsweise die Förderkolben gewartet oder getauscht werden können.The axially movable delivery pistons are each connected to the associated drive cylinder 32 via a piston rod. The front sides of the delivery pistons come into contact with the concrete, while the chambers of the delivery cylinders 30 facing away from the concrete are filled with water. A common water tank 34 is arranged between the delivery cylinders 30 and the drive cylinders 32, through which the piston rods of the delivery pistons run. The water in the water tank 34 moves in alternating delivery mode between the two delivery cylinders 30 and is in contact with the backs of the delivery pistons facing away from the loading funnel 22. In addition to cooling the delivery cylinders, this also serves to provide a maintenance point for the pump device 20 that is easily accessible by opening the water tank 34 and through which, for example, the delivery pistons can be serviced or replaced.

Im Stand der Technik ist, unabhängig vom Gerätetyp und vor allem bei Raupen- und Anhängerbetonpumpen, der Pumpenaufbau und auch die Pumpenvorrichtung üblicherweise mittig zur Längsachse des Fahrwerks angeordnet.In the prior art, regardless of the device type and especially in the case of crawler and trailer concrete pumps, the pump structure and also the pump device are usually arranged centrally to the longitudinal axis of the chassis.

Bei Autobetonpumpen ergibt sich die mittige Lage fast zwingend aus dem zum Einbau freien Raum zwischen dem Fahrzeug- oder Aufbaurahmen. Zudem strebt man eine mittige Schwerpunktlage bei dem straßenfahrenden Gerät an. Den schwerpunktmäßigen Ausgleich zur Betonpumpe erreicht man beispielsweise durch entsprechende Positionierung anderer schwerer Maschinenelemente (Tanks, Kühler). Die Zugänglichkeit zum Wasserkasten der Pumpenvorrichtung wird über entsprechende Podeste zum und Freiräume über dem Wasserkasten gewährleistet. Bezüglich der Fahrzeuggesamtbreite ist der Pumpenaufbau bei Autobetonpumpen aber in der Regel nicht maßgebend.For truck-mounted concrete pumps, the central position almost necessarily results from the free space between the vehicle or body frame for installation. In addition, the aim is to have a central center of gravity for the road-moving device. The center of gravity of the concrete pump can be achieved, for example, by appropriately positioning other heavy machine elements (tanks, coolers). Access to the water tank of the pump device is ensured via appropriate platforms and free spaces above the water tank. However, when it comes to the overall width of the vehicle, the pump structure is generally not important for truck-mounted concrete pumps.

Bei Raupen- und Anhängerbetonpumpen ist durch den mittigen Aufbau jedoch die Zugänglichkeit des Wasserkastens 34 erschwert, da sich das Personal über das Fahrwerk beugen muss, um an den mittig platzierten Wasserkasten 34 zu gelangen.In the case of crawler and trailer concrete pumps, however, the central structure makes the water tank 34 more difficult to access, as the personnel have to bend over the chassis to reach the centrally placed water tank 34.

Erfindungsgemäß ist daher die Pumpenvorrichtung 20 außermittig, d.h. seitlich versetzt zur Längsachse L1 des Fahrwerks (welche im gezeigten Ausführungsbeispiel auch der Längsachse der Rahmenstruktur 12 entspricht) angeordnet. Mit anderen Worten weist die Längsachse L2 der Pumpenvorrichtung 20, welche parallel zu und mittig zwischen den Förderzylindern 30 sowie, in diesem Ausführungsbeispiel, mittig (in Draufsicht) durch den Beschickungstrichter 22 verläuft, einen deutlichen Versatz bzw. Abstand zur Längsachse L1 des Fahrwerks auf (vgl. Figur 2). Das Gehäuse 18 ist mittig zur Längsachse L1 angeordnet, sodass die Pumpenvorrichtung 20 auch zum umgebenden Gehäuse 18 versetzt bzw. außermittig angeordnet ist.According to the invention, the pump device 20 is therefore arranged off-center, ie laterally offset from the longitudinal axis L1 of the chassis (which in the exemplary embodiment shown also corresponds to the longitudinal axis of the frame structure 12). In other words, the longitudinal axis L2 of the pump device 20, which runs parallel to and centrally between the delivery cylinders 30 and, in this exemplary embodiment, centrally (in plan view) through the feed funnel 22, has a clear offset or distance from the longitudinal axis L1 of the chassis ( see. Figure 2 ). The housing 18 is arranged centrally to the longitudinal axis L1, so that the pump device 20 is also offset from the surrounding housing 18 or arranged off-center.

Somit rücken die Pumpenvorrichtung 20 und der Beschickungstrichter 22 vollständig an eine Seite (in der Figur 2 nach oben) der Dickstoffpumpe 10, sodass die entsprechende Seitenwand des Beschickungstrichters 22 die Breite der Dickstoffpumpe 10 auf dieser Seite begrenzt. Die Förderleitung 24, welche über einen öffenbaren Klappbogen 26 mit der Rückwand des Beschickungstrichters 22 verbunden ist und nach einer im Wesentlichen 180°-Biegung seitlich am Gehäuse 18 vorbei (alternativ kann sie auch innerhalb des Gehäuse 18 verlaufen) nach vorne verläuft, begrenzt die Breite der Dickstoffpumpe 10 auf der anderen Seite (in der Figur 2 unten).Thus, the pump device 20 and the feed hopper 22 move completely to one side (in the Figure 2 upward) of the thick matter pump 10, so that the corresponding side wall of the feed hopper 22 limits the width of the thick matter pump 10 on this side. The delivery line 24, which is connected to the rear wall of the feed hopper 22 via an openable folding arch 26 and, after a substantially 180 ° bend, runs laterally past the housing 18 (alternatively it can also run inside the housing 18), limits the width the thick matter pump 10 on the other side (in the Figure 2 below).

Somit gibt es keine Überstände des Fahrwerks oder der Raupenfahrwerksschiffe 14 in Bezug auf die Förderleitung 24 und den Beschickungstrichter 22 bzw. die Pumpenvorrichtung 20. Die Breite des Fahrwerks (samt Rahmenstruktur 12 und Raupenfahrwerksschiffe 14) entspricht im Wesentlichen der Breite des gesamten Pumpenaufbaus 16 (also inklusive Beschickungstrichter 22 und Förderleitung 24). Dadurch ergibt sich ein besserer Zugang zu den Wartungsstellen des Pumpenaufbaus 16 und ein kompakterer Aufbau der Dickstoffpumpe 10, was zu einer besseren Übersichtlichkeit auf der Baustelle führt.Thus, there are no protrusions of the chassis or the crawler ships 14 in relation to the delivery line 24 and the feed hopper 22 or the pump device 20. The width of the chassis (including the frame structure 12 and the crawler ships 14) essentially corresponds to the width of the entire pump structure 16 (i.e including feed hopper 22 and delivery line 24). This results in better access to the maintenance points of the pump structure 16 and a more compact structure of the thick matter pump 10, which leads to better clarity on the construction site.

Zudem lässt sich der durch die außermittige Anordnung der Pumpenvorrichtung 20 freigewordene Bauraum 40 zwischen Pumpenaufbau 20 und Förderleitung 24 (vgl. die schraffierte Fläche 40 in der Figur 2), welcher im vorliegenden Ausführungsbeispiel innerhalb des Gehäuses 18 liegt, dies aber nicht muss, für zusätzliche Komponenten der Dickstoffpumpe 10 nutzen. Dabei kann es sich um Großkomponenten wie Tanks, Motoren oder Speicher handeln, oder einfach um Stauraum für Teile, Werkzeug oder dergleichen.In addition, the space 40 freed up by the off-center arrangement of the pump device 20 between the pump structure 20 and the delivery line 24 (cf. the hatched area 40 in the Figure 2 ), which in the present exemplary embodiment lies within the housing 18, but does not have to, for additional components of the thick matter pump 10. These can be large components such as tanks, engines or storage units, or simply storage space for parts, tools or the like.

Die erfindungsgemäße außermittige Anordnung des Pumpenaufbaus 20 ist nicht auf Raupenbetonpumpen und Anhängerbetonpumpen begrenzt und kann beispielsweise auch bei Stationärbetonpumpen zum Einsatz kommen.The off-center arrangement of the pump structure 20 according to the invention is not limited to crawler concrete pumps and trailer concrete pumps and can also be used, for example, in stationary concrete pumps.

Bezugszeichenliste:List of reference symbols:

1010
DickstoffpumpeThick matter pump
1212
Rahmenstrukturframe structure
1414
RaupenfahrwerksschiffCrawler undercarriage vessel
1616
PumpenaufbauPump structure
1818
GehäuseHousing
2020
PumpenvorrichtungPump device
2222
BeschickungstrichterFeeding hopper
2323
Öffnungopening
2424
Förderleitungdelivery line
2626
KlappbogenFolding sheet
2828
RührwerkAgitator
3030
Förderzylinderdelivery cylinder
3232
AntriebszylinderDrive cylinder
3434
Wasserkastenwater box
4040
Raum für GroßkomponentenSpace for large components
L1L1
Längsachse des FahrwerksLongitudinal axis of the chassis
L2L2
Längsachse der PumpenvorrichtungLongitudinal axis of the pump device

Claims (15)

  1. A viscous material pump (10), in particular a concrete pump, comprising a chassis and a pump assembly (16), which is mounted on the chassis and has a pump apparatus (20) for conveying viscous material, a feed hopper (22) for supplying viscous material to the pump apparatus (20), and/or a delivery pipe (24) into which the viscous material is pumped, wherein the pump apparatus (20) is arranged laterally offset in relation to the longitudinal axis of the chassis,
    characterised in that
    the pump assembly (16) bounds the overall width of the viscous material pump (10) on one side laterally to the longitudinal axis of the chassis, preferably on both sides.
  2. The viscous material pump (10) according to claim 1, characterised in that the pump assembly (16) comprises a feed hopper (22) for supplying viscous material to the pump apparatus (20), wherein the overall width of the viscous material pump (10) is bounded on one side by the feed hopper (22) and wherein the feed hopper (22) is preferably arranged centrally with respect to the longitudinal axis of the pump apparatus (20).
  3. The viscous material pump (10) according to claim 1 or 2, characterised in that the pump assembly (16) comprises a delivery pipe (24) in which viscous material can be conveyed by the pump apparatus (20) and which runs forwards alongside the viscous material pump (10) and which is preferably fastened to a rear wall of a feed hopper (22) via a hinged elbow (26), wherein the overall width of the viscous material pump (10) is bounded on one side by the delivery pipe (24).
  4. The viscous material pump (10) according to claims 2 and 3, characterised in that the overall width of the viscous material pump (10) is bounded on the one side by the feed hopper (22) and on the other side by the delivery pipe (24).
  5. The viscous material pump (10) according to claim 3 or 4, characterised in that, on the side of the pump apparatus (20) along which the delivery pipe (24) runs, a tank, a motor, a cooler and/or a storage vessel is arranged which does not project laterally beyond the delivery pipe (24) and which is preferably arranged between the pump apparatus (20) and the delivery pipe (24).
  6. The viscous material pump (10) according to one of the preceding claims, characterised in that on one side, preferably on both sides, the pump assembly (16) does not project beyond the chassis.
  7. The viscous material pump (10) according to claim 6, characterised in that the maximum width of the pump assembly (16) corresponds to the maximum width of the chassis.
  8. The viscous material pump (10) according to one of the preceding claims, characterised in that the pump assembly (20) comprises two delivery cylinders (30), which are connected to a feed hopper (22) and can be driven in such a way that the one delivery cylinder (30) executes a suction stroke and sucks viscous material out of the feed hopper (22) while at the same time the other delivery cylinder (30) executes a pump stroke and pumps viscous material into the delivery pipe (24).
  9. The viscous material pump (10) according to claim 8, characterised in that the pump assembly (16) comprises a transfer tube which is preferably swivel-mounted on the feed hopper (22) and which can be driven in such a way that it connects the delivery pipe (24) in an alternating manner to whichever delivery cylinder (30) is executing a pump stroke.
  10. The viscous material pump (10) according to one of the preceding claims, characterised in that the pump apparatus (20) comprises a water box (34) for the visual inspection and maintenance of at least one delivery cylinder (30), wherein the pump apparatus (20) is arranged and designed in such a way that the water box (34) can be accessed from outside the viscous material pump (10).
  11. The viscous material pump (10) according to one of the preceding claims, characterised in that the pump apparatus (20) is arranged at least partly in a housing (18) of the pump assembly (16) and is preferably laterally offset in relation to the longitudinal axis of the housing (18).
  12. The viscous material pump (10) according to one of the preceding claims, characterised in that the chassis is a crawler chassis having two crawler chassis tracks (14).
  13. The viscous material pump (10) according to claim 12, characterised in that the pump assembly (16) extends in a region above one or more crawler chassis tracks (14).
  14. The viscous material pump (10) according to one of the preceding claims, characterised in that the viscous material pump comprises at least one of the following components:
    - a maintenance point, in particular a water box (34) of the pump apparatus (20),
    - a power generating unit, in particular a motor and/or a battery,
    - a control cabinet,
    - a machine component,
    - a storage compartment.
  15. The viscous material pump (10) according to claim 14, characterised in that the at least one component is accessible from a single side of the viscous material pump (10), in particular on a side bounded by the pump assembly (20).
EP22172479.2A 2021-06-02 2022-05-10 Viscous material pump Active EP4098870B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202021103018.6U DE202021103018U1 (en) 2021-06-02 2021-06-02 sludge pump

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Publication Number Publication Date
EP4098870A1 EP4098870A1 (en) 2022-12-07
EP4098870B1 true EP4098870B1 (en) 2024-03-20

Family

ID=83361425

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Application Number Title Priority Date Filing Date
EP22172479.2A Active EP4098870B1 (en) 2021-06-02 2022-05-10 Viscous material pump

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EP (1) EP4098870B1 (en)
DE (1) DE202021103018U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022210816A1 (en) * 2022-10-13 2024-04-18 Putzmeister Engineering Gmbh Construction machine for conveying thick material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807706A (en) * 1969-06-30 1974-04-30 Irl Daffin Associates Concrete handling arrangement
CA929413A (en) 1970-09-10 1973-07-03 I. Coles Manson Concrete pump
US4527959A (en) * 1983-05-10 1985-07-09 Whiteman Manufacturing Company Drilling fluid pump providing a uniform, controlled pressure and flow rate
DE102008047425A1 (en) 2008-09-15 2010-04-15 Putzmeister Concrete Pumps Gmbh Mobile work machine with remote control device
DE102018125163B3 (en) 2018-10-11 2019-05-16 Schwing Gmbh Mobile slurry pump
DE102019107006A1 (en) 2019-03-19 2020-09-24 Schwing Gmbh Mobile thick matter pump

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DE202021103018U1 (en) 2022-09-05

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