Vehicle mounted concrete pump

Abstract

To provide an on-vehicle type concrete pump having improved characteristics.SOLUTION: An on-vehicle type concrete pump comprises: a concrete pump system (2) formed so that the concrete pump system (2) pumps concrete; a hydraulic drive pump system (3) formed so that the hydraulic drive pump system (3) drives the concrete pump system (2), and comprising a hydraulic pump drive shaft (4); a combustion drive motor system (5) formed so that the combustion drive motor system (5) drives the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3); and a liquid-cooled type synchronous drive motor (6) formed so that the liquid-cooled type synchronous drive motor (6) drives the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3).SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] Field of use and background technology The present invention relates to a vehicle mounted concrete pump. Summary of the Invention [Problem to be solved by the invention]

[0002] The problem underlying the present invention is to provide a vehicle-mounted concrete pump having improved properties. [Means for solving the problem]

[0003] The present invention solves this problem by providing a vehicle-mounted concrete pump having the features of claim 1. Advantageous further configurations and embodiments of the invention are set out in the dependent claims. Effect of the Invention

[0004] The vehicle-mounted concrete pump according to the invention comprises a concrete pump system, a hydraulically driven pump system, a combustion-driven motor system and a liquid-cooled, in particular water-cooled or oil-cooled, synchronous drive motor. The concrete pump system is designed in particular for automatically pumping or in particular for automatically pumping concrete. The hydraulically driven pump system is designed in particular for automatically and / or hydraulically driving the concrete pump system. Furthermore, the hydraulically driven pump system comprises a hydraulic pump drive shaft. The combustion-driven motor system is designed in particular for automatically and / or mechanically driving a hydraulic pump drive shaft of the hydraulically driven pump system. The liquid-cooled synchronous drive motor is designed in particular for automatically and / or mechanically driving a particular same hydraulic pump drive shaft of the hydraulically driven pump system.

[0005] The liquid-cooled synchronous drive motor can have a relatively small volume and / or a relatively small mass or a relatively small weight. The liquid-cooled synchronous drive motor thereby enables the liquid-cooled synchronous drive motor and the combustion-driven motor system to drive, in particular, the same hydraulic pump drive shaft of a hydraulic drive pump system. In particular, the vehicle-mounted concrete pump can have only one hydraulic drive pump system, in particular with only one hydraulic pump drive shaft. In other words, the vehicle-mounted concrete pump does not have to have or does not need to have multiple hydraulic drive pump systems with multiple hydraulic pump drive shafts. The liquid-cooled synchronous drive motor thereby enables, in particular, a relatively compact and / or relatively lightweight construction of the vehicle-mounted concrete pump, with relatively few components. The vehicle-mounted concrete pump thereby for the first time enables effective work, in particular effective pumping of concrete, with relatively little or even no exhaust gas emissions and / or with a relatively low sound level or loudness level. In particular, the vehicle-mounted concrete pump can thereby be used on urban construction sites.

[0006] In particular, vehicle-mounted concrete pumps can be designated as mobile, in particular self-mobile, concrete pumps.

[0007] Additionally or alternatively, the concrete pumping system may comprise at least one piston pump, in particular a double piston pump, for pumping the concrete, in particular automatically.

[0008] Additionally or alternatively, the hydraulically driven pump system may have a plurality of hydraulically driven pumps, in particular for automatically and / or hydraulically driving the concrete pump system. The hydraulic pump drive shaft may be configured to drive the plurality of hydraulically driven pumps, in particular automatically and / or mechanically. In particular, the plurality of hydraulically driven pumps may be mechanically connected to the hydraulic pump drive shaft. solidand in particular may be mounted on a hydraulic pump drive shaft. Additionally or alternatively, the hydraulic drive pump system may be different from the concrete pump system.

[0009] Additionally or alternatively, the combustion-driven motor system may in particular have only one combustion-driven motor, in particular a diesel engine, for automatically and / or mechanically driving a hydraulic pump drive shaft of the hydraulically-driven pump system. Additionally, the combustion-driven motor system may have a vehicle transmission. Additionally or alternatively, the combustion-driven motor system may be different from the hydraulically-driven pump system.

[0010] Additionally or alternatively, the liquid-cooled synchronous drive motor can have, in particular, only one synchronous motor, in order to drive, in particular automatically and / or mechanically, the hydraulic pump drive shaft of the hydraulic drive pump system. In particular, the synchronous motor can have a reluctance effect. Additionally or alternatively, the synchronous motor can be a single-phase or three-phase current synchronous machine in motor operation, in which a constantly magnetized rotor can be synchronously entrained by a moving rotating magnetic field in the stator. Additionally, the liquid-cooled synchronous drive motor can have a liquid cooling device, in particular a water- or oil-cooling device, in order to cool the synchronous motor. A liquid cooling device can mean a cooling system, in particular a cooling circulation system, in which the coolant that mainly carries off the heat can be a liquid, in particular water or oil. Additionally or alternatively, the liquid-cooled synchronous drive motor can be different from the combustion-driven motor system and / or the hydraulic drive pump system.

[0011] Additionally or alternatively, the vehicle-mounted concrete pump may be configured such that, in particular at one time, the hydraulic pump drive shaft of the hydraulic drive pump system may be driven, in particular exclusively by the combustion-driven motor system, or in particular exclusively by the liquid-cooled synchronous drive motor, or the combustion-driven motor system and the liquid-cooled synchronous drive motor, in particular simultaneously. In addition, the vehicle-mounted concrete pump may be configured to switch, in particular automatically, between the combustion drive and / or the synchronous drive, or between electric operation and / or hybrid operation. Additionally or alternatively, the vehicle-mounted concrete pump may be referred to as a parallel-hybrid vehicle-mounted concrete pump.

[0012] In one embodiment of the invention, the vehicle-mounted concrete pump has a superstructure and a vehicle frame, which is in particular different from the superstructure. The superstructure supports the concrete pump system. The vehicle frame supports the superstructure. The liquid-cooled synchronous drive motor is partially arranged spatially between the main longitudinal supports of the superstructure and / or the vehicle frame. This allows optimal utilization of the structural space. In other words, the liquid-cooled synchronous drive motor does not have to be arranged spatially on the superstructure or does not need to be arranged spatially on the superstructure. Or the superstructure does not have to support the liquid-cooled synchronous drive motor or does not need to support it. The liquid-cooled synchronous drive motor therefore does not have to require or need to require structural space or flatness on the superstructure. In particular, the superstructure can be referred to as a loading platform, in particular in the right or left region of the vehicle-mounted concrete pump. Additionally or alternatively, the vehicle frame can be referred to as a vehicle chassis. Furthermore or alternatively, the vehicle frame can be a frame for a truck or the vehicle-mounted concrete pump can be mounted on a truck. Additionally or alternatively, the liquid-cooled synchronous drive motor may be spatially arranged entirely between the main longitudinal supports of the superstructure and / or vehicle frame, or may extend vertically downwards and / or upwards beyond the main longitudinal supports.

[0013] In a further embodiment of the invention, the vehicle-mounted concrete pump has at least one traveling drive axle. The combustion-driven motor system is designed to drive the at least one traveling drive axle. This allows the combustion-driven motor system to ensure both a traveling operation and a pumping operation of the vehicle-mounted concrete pump. In particular, the vehicle-mounted concrete pump can be designed such that, in particular, at one time, the combustion-driven motor system can drive in particular exclusively at least one traveling drive axle or in particular exclusively a hydraulic pump drive shaft of the hydraulic drive pump system. In addition to this, the vehicle-mounted concrete pump can be designed to switch between traveling operation and pumping operation, in particular automatically.

[0014] In one embodiment of the invention, the vehicle-mounted concrete pump has a distributed transmission, which is especially designed in such a way that at one time the combustion-driven motor system is coupled, especially exclusively to at least one traction drive axle or especially exclusively to a hydraulic pump drive shaft of the hydraulic drive pump system, especially automatically and / or mechanically.

[0015] In one embodiment of the invention, the combustion-driven motor system is mechanically coupled to the distributed transmission, in particular by a cardan shaft, in particular exclusively by a cardan shaft. This allows, in particular, a relatively simple coupling with relatively few components. In particular, the combustion-driven motor system may not or does not need to be hydraulically coupled to the distributed transmission.

[0016] In one embodiment of the invention, the hydraulic pump system has a plurality of hydraulic pumps. The distributor gear has a drive side and an opposite or opposite output side. The combustion drive motor system and the liquid-cooled synchronous drive motor are preferably arranged spatially completely on the drive side. Furthermore, the hydraulic pumps are preferably arranged spatially completely on the output side. This allows optimal utilization of the construction space. In particular, the hydraulic pumps may not or need not be arranged spatially on the drive side. Additionally or alternatively, the travel drive axle may be arranged spatially on the output side.

[0017] In one embodiment of the invention, the liquid-cooled synchronous drive motor is coupled to the hydraulic pump drive shaft of the hydraulic drive pump system by or via a distributed transmission, in particular through a distributed transmission and / or mechanically, in particular flange-connected directly to the distributed transmission. This makes it possible to use a distributed transmission to distribute the mechanical energy of the two drives, i.e. the combustion-driven motor system and the liquid-cooled synchronous drive motor. In particular, the vehicle-mounted concrete pump may be designed to switch between the combustion drive and / or the synchronous drive and / or the hybrid actuator, in particular automatically, by or via the distributed transmission. Additionally or alternatively, the hydraulic pump drive shaft of the hydraulic drive pump system may run through the distributed transmission, in particular from the output side to the drive side. Furthermore additionally or alternatively, the liquid-cooled synchronous drive motor may be flange-connected to the distributed transmission on the same side as the combustion-driven motor system and / or on the drive side.

[0018] In one further configuration of the invention, the liquid-cooled synchronous drive motor is mechanically coupled to the hydraulic pump drive shaft of the hydraulic drive pump system. solidand in particular the liquid-cooled synchronous drive motor is mounted on the hydraulic pump drive shaft. This allows in particular a relatively simple connection with relatively few components. In particular, the liquid-cooled synchronous drive motor does not have to be connected to the hydraulic pump drive shaft of the hydraulically driven pump system and / or to the combustion-driven motor system by or via a releasable coupling or freewheel, or does not have to be connected. Additionally or alternatively, the liquid-cooled synchronous drive motor can in particular be designed to rotate idle or passively in the combustion drive.

[0019] In a further configuration of the invention, the liquid-cooled synchronous drive motor is configured for a nominal power of at least 60 kilowatts (kW), in particular at least 80 kW. Additionally or alternatively, the liquid-cooled synchronous drive motor has a nominal power density of at least 0.4 kilowatts per kilogram (kW / kg), in particular at least 0.5 kW / kg. This allows the liquid-cooled synchronous drive motor to cover the full functionality of the vehicle-mounted concrete pump, in particular the hydraulic drive pump system and thus the concrete pump system, and to be configured both for full-load operation and for partial-load operation. In particular, the nominal power can mean a continuous power. The continuous power of the liquid-cooled synchronous drive motor may be the highest power that can be provided without time limitations during prescribed operation and without impairing the service life and safety of the liquid-cooled synchronous drive motor. Additionally or alternatively, the nominal power can be determined based on the three-phase current.

number

[0020] In a further configuration of the invention, the vehicle-mounted concrete pump has a power grid connection. The power grid connection is electrically connected to the liquid-cooled synchronous drive motor, in particular by or via an electrical converter or converter. Furthermore, the power grid connection is designed for electrical connection, in particular to a site power supply switchboard and / or to a building site power grid connection of a three-phase power grid. This allows a relatively high power requirement of the vehicle-mounted concrete pump, in particular of a liquid-cooled synchronous drive motor, to be covered by or via the building site current. If more power is required, a combustion-driven motor system can be connected. In particular, the power grid connection can be designed for providing power or electrical energy to the liquid-cooled synchronous drive motor. Additionally or alternatively, the power grid connection can have a power plug, in particular a three-phase current plug connector. Additionally or alternatively, the vehicle-mounted concrete pump, in particular the electrical components, can be designed in such a way that the pump driver himself can make the electrical connection, in particular plugging a power plug into a corresponding socket or outlet of the building site power connection. This eliminates the need or expense of having to dispatch an extra electrician to electrically connect the vehicle mounted concrete pump.

[0021] In a further embodiment of the invention, the vehicle-mounted concrete pump has an electric energy storage device, in particular an accumulator. The electric energy storage device is electrically connected to the liquid-cooled synchronous drive motor, in particular by or via an electrical converter or converter. Furthermore, the electric energy storage device is configured to provide power or electric energy to the liquid-cooled synchronous drive motor. This allows the vehicle-mounted concrete pump to be operated at least partially electrically in the absence of a building site power grid connection. If more power is required, a combustion-driven motor system can be connected. In particular, if the combustion-driven motor system can provide more power or energy than is required by the hydraulic drive pump system, in particular temporarily, the vehicle-mounted concrete pump can be configured in such a way that the electric energy storage device is charged by or via the liquid-cooled synchronous drive motor from the combustion-driven motor system as a generator.

[0022] In one embodiment of the invention, the electric energy storage device is electrically connected and configured to receive power from or by the power grid connection, which is not required by the liquid-cooled synchronous drive motor, particularly temporarily or at a first time point, or is redundant, particularly through or via said converter or converter and / or electrical converter or converter. Furthermore, the electric energy storage device is configured to provide power or electric energy required by the liquid-cooled synchronous drive motor, particularly temporarily or at a second time point different from the first time point, in addition to the power from the power grid connection. Typically, the building site power grid connection provides only a limited power or is limited to a certain power load. The vehicle-mounted concrete pump, in particular the electric energy storage device, allows the liquid-cooled synchronous drive motor to provide more power than is provided by the building site power grid connection, at least temporarily or for a while. In particular, relatively high required power or power peaks, particularly for a short period of time, of the liquid-cooled synchronous drive motor are covered in particular simultaneously by the power grid connection or the building site power grid connection and additionally by the electric energy storage device. At times when the required power output is relatively low, the electrical energy storage device can receive the unused power of the power grid connection, in other words, during overload the electrical energy storage device can be tapped and during power reserve the electrical energy storage device can be charged.

[0023] In a further embodiment of the invention, the vehicle-mounted concrete pump has a concrete distribution mast, which is in particular configured to distribute concrete pumped or pumped by the concrete pump system, and a hydraulic drive pump system configured to drive the concrete distribution mast.

[0024] Further advantages and aspects of the invention will become apparent from the appended claims and the following description of preferred embodiments of the invention, which is given below with reference to the drawings. [Brief description of the drawings]

[0025] [Figure 1] FIG. 1 is a side view showing a vehicle-mounted concrete pump according to the present invention. [Diagram 2] 2 is a top view of the superstructure and vehicle frame in the assembly area of ​​the vehicle mounted concrete pump of FIG. 1, shown in dashed lines in FIG. [Diagram 3] FIG. 3 is a circuit diagram of the vehicle-mounted concrete pump of FIG. [Figure 4] FIG. 4 is a further circuit diagram of the vehicle mounted concrete pump of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] 1 to 4 show a vehicle-mounted concrete pump 1 according to the present invention. The vehicle-mounted concrete pump 1 includes a concrete pump system 2, a hydraulic drive pump system 3, a combustion drive motor system 5, and a liquid-cooled synchronous drive motor 6. The concrete pump system 2 is configured to pump concrete. The hydraulic drive pump system 3 is configured to drive the concrete pump system 2. Furthermore, the hydraulic drive pump system 3 includes a hydraulic pump drive shaft 4. The combustion drive motor system 5 is configured to drive the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3. The liquid-cooled synchronous drive motor 6 is configured to drive the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3.

[0027] In the illustrated embodiment, the concrete pump system 2 has at least one piston pump, in particular a double piston pump, for pumping the concrete. Furthermore, in the illustrated embodiment, the hydraulically driven pump system 3 has at least one working cylinder 18, in particular two working cylinders 18, and at least one working piston, in particular two working pistons, as shown in Fig. 2. The at least one working piston is designed to drive the at least one piston pump. The hydraulic pump drive shaft 4 is designed to drive the at least one working piston.

[0028] Further, in the illustrated embodiment, the combustion driven motor system 5 includes a combustion driven motor 22 for driving the hydraulic pump drive shaft 4 of the hydraulic driven pump system 3, as shown in Figure 3. In addition, the combustion driven motor system 5 includes a vehicle transmission 23.

[0029] Furthermore, in the illustrated embodiment, the liquid-cooled synchronous drive motor 6 includes a synchronous motor 24 for driving the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3, as shown in Fig. 2. In addition, the liquid-cooled synchronous drive motor 6 includes a liquid cooling device 25 for cooling the synchronous motor 24, as shown in Fig. 3.

[0030] The vehicle mounted concrete pump 2 further includes a concrete distribution mast 16, as shown in Figure 1. The concrete distribution mast 16 is configured to distribute the pumped concrete. The hydraulic drive pump system 3 is configured to drive the concrete distribution mast 16.

[0031] Furthermore, the vehicle mounted concrete pump comprises a superstructure 7 and a vehicle frame 8, as shown in Fig. 2. The superstructure 7 supports the concrete pumping system 2. The vehicle frame 8 supports the superstructure 7. In the illustrated embodiment, the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, is spatially arranged between the main longitudinal supports 17 of the vehicle frame 8. In another embodiment, the liquid-cooled synchronous drive motor may additionally or instead be spatially arranged between the main longitudinal supports of the superstructure.

[0032] In the embodiment shown, the superstructure 7 additionally supports a concrete distribution mast 16. Furthermore, in the embodiment shown, the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3 is spatially arranged between the main longitudinal supports 17 of the vehicle frame 8.

[0033] Furthermore, the vehicle mounted concrete pump 1 has at least one travel drive axle 9. The combustion drive motor system 5, in particular the combustion drive motor 22, is configured to drive the at least one travel drive axle 9, as shown in FIG.

[0034] In the embodiment shown, the vehicle-mounted concrete pump 1 has two running drive axles 9. In alternative embodiments, the vehicle-mounted concrete pump can have only one running drive axle or at least three running drive axles. Furthermore, in the embodiment shown, at least one running drive axle 9 is the rear axle.

[0035] Furthermore, the vehicle-mounted concrete pump 1 has a distributed transmission 10. The distributed transmission 10 is configured to couple the combustion-driven motor system 5 to at least one traction drive axle 9 or to a hydraulic pump drive shaft 4 of the hydraulic drive pump system 3, as shown in FIG.

[0036] In the embodiment shown, the distributed transmission 10 is spatially arranged between the main longitudinal supports 17 of the vehicle frame 8 .

[0037] In particular, the combustion drive motor system 5 , in particular the vehicle transmission 23 , is mechanically coupled to the distributed transmission 10 , in particular by means of a cardan shaft 11 .

[0038] Furthermore, the hydraulically driven pump system 3 comprises a plurality of hydraulically driven pumps 12. The distributed transmission 10 comprises a drive side IS and an opposite output side OS. The combustion drive motor system 5, in particular the combustion drive motor 22, the vehicle transmission 23 and the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, are spatially arranged on the drive side IS. Furthermore, the hydraulically driven pumps 12 are spatially arranged on the output side OS and are in particular flange-connected directly to the distributed transmission 10.

[0039] In the illustrated embodiment, the hydraulic pump system 3 has four hydraulic pumps 12. In another embodiment, the hydraulic pump system can have only one hydraulic pump or two, three or at least five hydraulic pumps. Furthermore, in the illustrated embodiment, at least one travel drive axle 9 is spatially arranged on the output side OS. Furthermore, in the illustrated embodiment, the hydraulic pumps 12 are spatially arranged between the main longitudinal supports 17 of the vehicle frame 8. Furthermore, in another embodiment, at least one of the hydraulic pumps can be spatially arranged on the drive side. In particular, a liquid-cooled synchronous drive motor, in particular a synchronous motor, can be arranged between the hydraulic pump arranged on the drive side and the distributor transmission, in particular together with a drive shaft.

[0040] In particular, the plurality of hydraulically driven pumps 12 are configured to drive the concrete pump system 2, in particular at least one drive piston. The hydraulic pump drive shaft 4 is configured to drive the plurality of hydraulically driven pumps 12. In the embodiment shown, the plurality of hydraulically driven pumps 12 are mechanically coupled to the hydraulic pump drive shaft 4. solid , in particular a number of hydraulically driven pumps 12 mounted on the hydraulic pump drive shaft 4 .

[0041] Furthermore, the liquid-cooled synchronous drive motor 6 , in particular the synchronous motor 24 , is connected to the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3 by means of a distributed transmission 10 , in particular directly flange-connected to the distributed transmission 10 .

[0042] Furthermore, the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, is mechanically connected to the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3. solid , in particular a liquid-cooled synchronous drive motor 6 , in particular a synchronous motor 24 , which is mounted on the hydraulic pump drive shaft 4 .

[0043] In particular, a hydraulic pump drive shaft 4 of the hydraulic drive pump system 3 extends through a distributed transmission 10, in particular from an output side OS to a drive side IS.

[0044] Furthermore, the liquid-cooled synchronous drive motor 6, and in particular the synchronous motor 24, are designed to rotate idly.

[0045] In another embodiment, the liquid-cooled synchronous drive motor, in particular the synchronous motor, can be coupled to the hydraulic pump drive shaft of the hydraulically driven pump system and / or the combustion-driven motor system via a releasable coupling or freewheel between the liquid-cooled synchronous drive motor, in particular the synchronous motor, and the distributor transmission, in particular if the liquid-cooled synchronous drive motor, in particular the synchronous motor, is not designed to run idle.

[0046] Additionally or alternatively, in another embodiment, the liquid-cooled synchronous drive motor, in particular the synchronous motor, can have a hollow shaft motor, in particular it can be a hollow shaft motor. The hollow shaft motor can be mounted on a cardan shaft and can be designed to drive the cardan shaft. Additionally or alternatively, in another embodiment, the liquid-cooled synchronous drive motor, in particular the synchronous motor, in particular the hollow shaft motor, can be integrated into the vehicle transmission, if present.

[0047] In the illustrated embodiment, when the shift shaft 26 of the distributor gear 10 is shifted towards the left in Fig. 4, the combustion drive motor system 5 can drive the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3. The shaft of the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, can run free. Alternatively, the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, can additionally drive the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3. At least one traction drive axle 9 is decoupled.

[0048] In the illustrated embodiment, when the shift shaft 26 of the distributed transmission 10 is shifted towards the right in Fig. 4, the combustion drive motor system 5 can drive at least one traction drive axle 9. The liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, can drive the hydraulic pump drive shaft 4 of the hydraulic drive pump system 3. The shift shaft 26 and the upper shaft in Fig. 4, in particular the hydraulic pump drive shaft 4, are decoupled.

[0049] Furthermore, the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, is designed for a nominal power P6 of at least 60 kW, in particular at least 80 kW. In addition to this, the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, has a nominal power density PD6 of at least 0.4 kW / kg, in particular at least 0.5 kW / kg.

[0050] Furthermore, the vehicle-mounted concrete pump 1 has a power grid connection 13. The power grid connection 13 is electrically connected to the liquid-cooled synchronous drive motor 6, in particular to a synchronous motor 24, in particular by means of an electrical converter 19. Furthermore, the power grid connection 13 is designed for electrical connection to a building site power grid connection 14, in particular to a three-phase power grid.

[0051] In particular, the power grid connection 13 comprises an electric plug 20 and an electric current cable 21 .

[0052] When the power grid connection 13 or the building site power grid connection 14 in the embodiment shown supplies the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, the converter 19 converts the alternating current voltage AC into a direct current voltage DC and then into an alternating current voltage AC.

[0053] Furthermore, the vehicle-mounted concrete pump 1 comprises an electric energy storage device 15. The electric energy storage device 15 is electrically connected, in particular by means of a converter 19, to the liquid-cooled synchronous drive motor 6, in particular to the synchronous motor 24. Furthermore, the electric energy storage device 15 is formed to provide electrical power P15 to the liquid-cooled synchronous drive motor 6, in particular to the synchronous motor 24.

[0054] In the embodiment shown, the electrical energy storage device 15 powers the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, and the converter 19 converts the direct current voltage DC into an alternating current voltage AC.

[0055] In particular, the electrical energy storage device 15 is electrically connected and configured to receive, in particular through the converter 19, electrical power Pex from the power grid connection 13 that is not required by the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24. Furthermore, the electrical energy storage device 15 is configured to provide electrical power P15 required by the liquid-cooled synchronous drive motor 6, in particular the synchronous motor 24, in addition to electrical power Pin from the power grid connection 13.

[0056] In the embodiment shown, the power grid connection 13 or the building site power grid connection 14 powers or charges the electrical energy storage device 15, and the converter 19 converts the alternating current voltage AC into a direct current voltage DC.

[0057] In the embodiment shown, the vehicle-mounted concrete pump 1 comprises a power grid connection 13 and an electrical energy storage device 15. In another embodiment, the vehicle-mounted concrete pump can only comprise a power grid connection. In other words, in another embodiment, the vehicle-mounted concrete pump may not or does not have to comprise an electrical energy storage device. In particular, the vehicle-mounted concrete pump can be referred to as a storage-free parallel-hybrid vehicle-mounted concrete pump.

[0058] As the illustrated and described embodiments make clear, the present invention provides an advantageous vehicle mounted concrete pump having improved properties, in particular, for the first time a vehicle mounted concrete pump capable of effective operation with relatively little or even no exhaust gas emissions and at relatively low noise levels. The following are some aspects of the embodiment of the present invention. [Aspect 1] A vehicle-mounted concrete pump (1), The vehicle-mounted concrete pump (1), - a concrete pumping system (2), the concrete pumping system (2) being configured to pump concrete; - a hydraulically driven pump system (3) configured to drive the concrete pump system (2), the hydraulically driven pump system (3) having a hydraulic pump drive shaft (4); - a combustion driven motor system (5) configured to drive the hydraulic pump drive shaft (4) of the hydraulic driven pump system (3); and - a liquid-cooled synchronous drive motor (6), the liquid-cooled synchronous drive motor (6) being configured to drive the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3); A vehicle-mounted concrete pump (1). [Aspect 2] The vehicle-mounted concrete pump (1), - a superstructure (7) supporting said concrete pumping system (2); - a vehicle frame (8), which supports said superstructure (7); It has - the liquid-cooled synchronous drive motor (6) is partially spatially arranged between the main longitudinal supports (17) of the superstructure (7) and / or the vehicle frame (8), A vehicle-mounted concrete pump (1) according to embodiment 1. [Aspect 3] The vehicle-mounted concrete pump (1), - A vehicle-mounted concrete pump (1) as described in aspect 1 or 2, having at least one traveling drive axle (9), and the combustion-driven motor system (5) is configured to drive the at least one traveling drive axle (9). [Aspect 4] The vehicle-mounted concrete pump (1), - A vehicle-mounted concrete pump (1) as described in aspect 3, comprising a distributed transmission (10), the distributed transmission (10) being configured to in particular mechanically couple the combustion-driven motor system (5) to the at least one traction drive axle (9) or to the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3). [Aspect 5] - A vehicle-mounted concrete pump (1) as described in aspect 4, wherein the combustion-driven motor system (5) is mechanically coupled to the distribution transmission (10), in particular by a cardan shaft (11). [Aspect 6] - the hydraulically driven pump system (3) comprises a plurality of hydraulically driven pumps (12); and - the distributed transmission (10) has a drive side (IS) and an opposite output side (OS), the combustion driven motor system (5) and the liquid cooled synchronous drive motor (6) being spatially disposed on the drive side (IS), and the plurality of hydraulically driven pumps (12) being spatially disposed on the output side (OS); A vehicle-mounted concrete pump (1) according to aspect 4 or 5. [Aspect 7] - A vehicle-mounted concrete pump (1) according to any one of aspects 4 to 6, wherein the liquid-cooled synchronous drive motor (6) is mechanically coupled to the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3) by the distributor transmission (10), in particular by flange connection directly to the distributor transmission (10). [Aspect 8] - A vehicle-mounted concrete pump (1) according to any one of aspects 1 to 7, wherein the liquid-cooled synchronous drive motor (6) is mechanically immovably connected to the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3), in particular mounted on the hydraulic pump drive shaft (3). [Aspect 9] the liquid-cooled synchronous drive motor (6) is designed for a nominal power (P6) of at least 60 kW, in particular at least 80 kW, and / or - the liquid-cooled synchronous drive motor (6) has a nominal power density (PD6) of at least 0.4 kW / kg, in particular at least 0.5 kW / kg, A vehicle-mounted concrete pump (1) according to any one of the first to eighth aspects. [Aspect 10] The vehicle-mounted concrete pump (1) - a power grid connection (13) which is electrically connected to the liquid-cooled synchronous drive motor (6) in particular by means of a converter (19) and which is designed for electrical connection to a building site power grid connection (14), A vehicle-mounted concrete pump (1) according to any one of aspects 1 to 9. [Aspect 11] The vehicle-mounted concrete pump (1) - an electric energy storage device (15), in particular an accumulator, which is electrically connected to the liquid-cooled synchronous drive motor (6), in particular by means of a converter (19), and which is adapted to provide electrical power (P15) to the liquid-cooled synchronous drive motor (6), A vehicle-mounted concrete pump (1) according to any one of aspects 1 to 10. [Aspect 12] - the electrical energy storage device (15) is electrically connected and configured to receive electrical power (Pex) from a power grid connection (13) that is not required by the liquid-cooled synchronous drive motor (6), and - the electrical energy storage device (15) is configured to provide the electrical power (P15) required by the liquid-cooled synchronous drive motor (6) in addition to the electrical power (Pin) from the electrical grid connection (13), 12. A vehicle-mounted concrete pump (1) according to embodiments 10 and 11. [Aspect 13] The vehicle-mounted concrete pump (1) - a concrete distribution mast (16), the concrete distribution mast (16) being configured to distribute pumped concrete; - said hydraulically driven pump system (3) is configured to drive said concrete distribution mast (16); A vehicle-mounted concrete pump (1) according to any one of aspects 1 to 12.

Claims

1. A vehicle-mounted concrete pump (1), The vehicle-mounted concrete pump (1), a concrete pumping system (2), which is configured to pump concrete; - a hydraulically driven pump system (3) configured to drive said concrete pump system (2) and having a hydraulic pump drive shaft (4); a combustion driven motor system (5) configured to drive the hydraulic pump drive shaft (4) of the hydraulically driven pump system (3); a liquid-cooled synchronous drive motor (6), which is adapted to drive the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3); having - said liquid-cooled synchronous drive motor (6) being mechanically rigidly coupled to said hydraulic pump drive shaft (4) of said hydraulically driven pump system (3); - said liquid-cooled synchronous drive motor (6) is mounted on said hydraulic pump drive shaft (4); The vehicle-mounted concrete pump (1), - has at least one traction drive axle (9), said combustion drive motor system (5) being configured to drive said at least one traction drive axle (9), The vehicle-mounted concrete pump (1), a distributed transmission (10) adapted to couple the combustion-driven motor system (5) to the at least one traction drive axle (9) or to the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3), - a vehicle-mounted concrete pump (1), wherein the liquid-cooled synchronous drive motor (6) is mechanically coupled to the hydraulic pump drive shaft (4) of the hydraulic drive pump system (3) by means of the distributed transmission (10) and is directly flange-coupled to the distributed transmission (10).

2. The vehicle-mounted concrete pump (1), a superstructure (7) supporting said concrete pumping system (2), a vehicle frame (8) which supports said superstructure (7); It has the liquid-cooled synchronous drive motor (6) is partially spatially arranged between the main longitudinal supports (17) of the superstructure (7) and / or of the vehicle frame (8); A vehicle mounted concrete pump (1) according to claim 1.

3. A vehicle-mounted concrete pump (1) according to claim 1 or 2, characterized in that the combustion-driven motor system (5) is mechanically coupled to the distributor transmission (10) by means of a cardan shaft (11).

4. said liquid-cooled synchronous drive motor (6) is designed for a nominal power (P6) of at least 60 kW, and / or - said liquid-cooled synchronous drive motor (6) has a nominal power density (PD6) of at least 0.4 kW / kg; A vehicle mounted concrete pump (1) according to any one of claims 1 to 3.

5. The vehicle-mounted concrete pump (1) - a power grid connection (13) electrically connected to said liquid-cooled synchronous drive motor (6) and adapted for electrical connection to a building site power grid connection (14); A vehicle mounted concrete pump (1) according to any one of claims 1 to 4.

6. The vehicle-mounted concrete pump (1) - it has an electrical energy storage device (15), said electrical energy storage device (15) is electrically connected and configured to receive electrical power (Pex) from said power grid connection (13) that is not required by said liquid-cooled synchronous drive motor (6); and the electrical energy storage device (15) is electrically connected to the liquid-cooled synchronous drive motor (6) and is configured to provide the liquid-cooled synchronous drive motor (6) with electrical power (P15) required by the liquid-cooled synchronous drive motor (6) in addition to electrical power (Pin) from the power grid connection (13); A vehicle mounted concrete pump (1) according to claim 5.

7. The electrical energy storage device (15) is an accumulator. A vehicle mounted concrete pump (1) according to claim 6.

8. The electrical energy storage device (15) is electrically connected to the liquid-cooled synchronous drive motor (6) by a converter (19). A vehicle mounted concrete pump (1) according to claim 6 or 7.

9. The vehicle-mounted concrete pump (1) - a concrete distribution mast (16) configured to distribute pumped concrete, - said hydraulically driven pump system (3) is adapted to drive said concrete distribution mast (16); A vehicle mounted concrete pump (1) according to any one of the preceding claims.

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