EP4493784B1 - Engin de chantier mobile et procédé de fonctionnement de l'engin de chantier - Google Patents

Engin de chantier mobile et procédé de fonctionnement de l'engin de chantier

Info

Publication number
EP4493784B1
EP4493784B1 EP23708758.0A EP23708758A EP4493784B1 EP 4493784 B1 EP4493784 B1 EP 4493784B1 EP 23708758 A EP23708758 A EP 23708758A EP 4493784 B1 EP4493784 B1 EP 4493784B1
Authority
EP
European Patent Office
Prior art keywords
gas
construction machine
drive
unit
exchange unit
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
EP23708758.0A
Other languages
German (de)
English (en)
Other versions
EP4493784A1 (fr
EP4493784C0 (fr
Inventor
Matthias Knoll
Stefan Hackl
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Publication of EP4493784A1 publication Critical patent/EP4493784A1/fr
Application granted granted Critical
Publication of EP4493784B1 publication Critical patent/EP4493784B1/fr
Publication of EP4493784C0 publication Critical patent/EP4493784C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank

Definitions

  • the invention relates to a mobile construction machine, in particular a civil engineering machine, with a chassis, a superstructure arranged on the chassis, a construction work device arranged on the superstructure, at least with a gas-powered drive and at least one easily detachable and replaceable exchange unit for storing gas attached to the superstructure, wherein the exchange unit attached to the superstructure has a plurality of interconnected gas containers and is connected to the drive in a construction operation for the supply of gas, according to the preamble of claim 1.
  • the invention further relates to a method for operating a mobile construction machine according to the preamble of claim 10.
  • Such a construction machine is known, for example, from ITTO 0020120803 A1.
  • This document describes a carrier vehicle for a diaphragm wall cutter, which is powered by a gas engine.
  • a gas engine To supply the gas, a large number of gas cylinders are bundled together as so-called gas cylinder bundles within a frame, forming a box-like exchangeable unit.
  • the exchangeable unit is detachably mounted at the rear of the carrier vehicle. Filled exchangeable units can be fed to the carrier vehicle for quick replacement using a crane or wheel loader.
  • the exchangeable unit thus constitutes the actual tank for the energy gas used to operate the construction machine.
  • the exchangeable units are very large and can impede the movement of the construction machine.
  • the invention is based on the objective of providing a mobile construction machine and a method which enable particularly efficient operation when using a gas drive.
  • the mobile construction machine according to the invention is characterized in that a stationary unit is further fixedly arranged on the superstructure, which is designed to store a predetermined minimum quantity of gas, by which it is possible to operate the drive of the construction machine in a driving mode and/or in a construction mode without the at least one exchange unit, in order to enable, for example, a driving mode and/or a construction mode.
  • a fundamental aspect of the invention is that the mobile construction machine not only features removable, interchangeable units for storing energy gas, but also a fixed stationary unit designed to store a predetermined minimum quantity of gas.
  • This provides an internal gas tank for a minimum quantity sufficient to operate the drive system, for example, to move the machine in a typical construction site relocation mode. This ensures the machine can be transported to and from a heavy transport vehicle for longer distances.
  • the stationary unit preferably has a gas storage capacity of 100 to 2,000 liters.
  • the construction machine can be moved, for example, during transport to and from a construction site, even if at least one interchangeable unit is not yet attached or has already been removed.
  • the machine can also be moved flexibly within the construction site from one work area to another without the relatively large interchangeable units.
  • initial construction operations can preferably take place, i.e., the operation of processing equipment.
  • the invention is based on the understanding that a relatively small amount of energy is required for the operation of even large construction machines while they are in motion.
  • the energy requirement of the at least one drive increases considerably compared to when the machine is in motion, in particular many times over.
  • the invention is based on the understanding that, especially when loading or unloading the construction machine, for example onto a low-loader with the large interchangeable units removed, automatic movement of the construction machine is advantageous for a swift workflow.
  • the stationary unit with one or more gas cylinders can be protected inside the superstructure, thus ensuring they are well protected from damage, especially during loading and unloading.
  • the interchangeable units mounted on the superstructure can be easily accessible and readily replaceable. This ensures a sufficient energy supply for construction operations.
  • the stationary unit can be similar in design to or identical with the interchangeable units, but permanently installed and not easily detachable.
  • the interchangeable unit can be detachably connected.
  • a preferred embodiment of the invention consists in the at least one interchangeable unit being mounted on the rear of the superstructure, particularly in the area of counterweights.
  • the interchangeable units can at least partially assume the function of counterweights, thereby further increasing the tilting stability of the construction machine.
  • the construction work device in particular on a mast, is arranged at the front of the superstructure.
  • the construction work device can, in particular, be a drilling drive with a drilling tool, especially for creating boreholes in the ground.
  • the construction work device can also be a trench cutter, a vibratory roller, or a pile driver, such as those used particularly in civil engineering.
  • the mast is preferably adjustable and connected to the superstructure via an adjustment mechanism.
  • the upper structure itself can be mounted rigidly or rotatably on a chassis, which is preferably a tracked chassis or a wheeled chassis.
  • a central distribution device to which the stationary unit and the at least one exchangeable unit are connected, and that the central distribution device is designed to control gas distribution between the at least one exchangeable unit and the stationary unit, as well as to supply gas to the at least one drive.
  • the distribution device can comprise a piping system with various controllable valves, which can be controlled via a control unit.
  • the control unit can ensure, in particular, that after an exchangeable unit is connected to the construction machine, the stationary unit is filled with gas, while simultaneously, if necessary, gas is supplied to the at least one drive of the construction machine.
  • the distribution device with the control unit can ensure that when one exchangeable unit is emptied by the at least one other exchangeable unit, sufficient gas is available so that construction operations can continue when the emptied exchangeable unit is replaced by a filled one.
  • the chassis or carrier vehicle is typically located in one place, and essentially only the operation and movement of the superstructure and/or the construction work device takes place.
  • the distribution system and control unit can be designed to ensure short-term operation of the construction machine, for example for a few minutes, if necessary, should at least one exchange unit be empty or space is very limited.
  • the control unit can preferably be designed so that the stationary unit is not completely emptied during operation, but rather the control unit stops the operation when a minimum fill level is reached. This ensures that a minimum amount of gas is always available at the construction machine for at least limited operation.
  • Each exchange unit comprises a plurality of gas containers, in particular so-called gas cylinders, and constitutes a gas cylinder bundle.
  • gas containers in particular so-called gas cylinders
  • well-established logistics already exist on construction sites for this purpose. This ensures a reliable supply of a sufficient quantity of gas via the exchange units.
  • the individual gas containers are grouped in a preferably box-shaped frame and connected to each other via pipes.
  • Each exchange unit or gas cylinder bundle has a common connection port through which the exchange unit can be connected to a corresponding connection port on the construction machine. Furthermore, the exchange unit can have its own filling port for filling the exchange unit with gas.
  • Another preferred embodiment of the invention comprises a pressure control device for adjusting the gas pressure, in particular increasing and/or decreasing it.
  • the pressure control device preferably includes one or more throttle valves, which are particularly controllable. Especially when the gas is stored in a liquid state, a pressure reduction can be set, causing the gas in the supply lines to transition into the gaseous state required for operation.
  • the pressure control device it is particularly advantageous for the pressure control device to include a compressor.
  • a compressor allows for a targeted increase in pressure and, if necessary, a change in the state of the gas. This can be especially useful when the stationary unit is to be filled with gas from the exchange unit.
  • a gas is an energy gas which is supplied as a gaseous fuel to a drive system such as a gas engine.
  • the gas can be stored in a gaseous or liquefied state, as is common with so-called liquefied gases.
  • any gaseous fuel can be used for operation, in particular natural gas, liquefied petroleum gas (LPG), Biogas, methane, ethane or any other gas with a corresponding energy content.
  • Hydrogen has a particularly high energy content. Furthermore, hydrogen is a common industrial gas that is used in a variety of ways on construction sites and for which well-established storage and delivery logistics already exist.
  • a preferred embodiment of the invention consists in the drive being designed as a gas engine or as a fuel cell.
  • the drive can, in particular, be a gas engine which is powered in a known manner by a gas as fuel, especially natural gas, liquefied petroleum gas (LPG), or biogas.
  • the drive according to the invention can also be designed as a fuel cell in which the supplied gas, in particular hydrogen, is converted into electrical energy in an electrochemical reaction, which can be used to operate electric motors.
  • the method according to the invention is characterized in that, in a construction operation, at least one exchange unit is attached to the superstructure, from which gas is supplied to the at least one drive, and that in a driving operation and/or a construction operation, the at least one exchange unit is removed from the superstructure and gas is supplied to the at least one drive from the stationary unit.
  • the method according to the invention can be carried out in particular with one of the mobile construction machines described above.
  • the advantages described above can be achieved in this way.
  • a preferred method variant consists in supplying gas to the drive unit from at least one exchange unit and the stationary unit via a distribution device.
  • a defined gas supply to the drive unit can be achieved, particularly in a construction setting, via a control system based on a predefined control program. Gas can be supplied primarily from the connected exchange unit to power the drive unit.
  • the distribution system can be controlled so that if the container(s) of the stationary unit are empty or partially empty, they are completely filled or at least filled to a minimum level, ensuring that subsequent driving or other construction operations of the construction machine can be carried out to the desired extent even after the interchangeable unit has been removed.
  • a mobile construction machine 10 which is designed by way of example as a civil engineering machine and in particular as a drilling rig, is in Fig. 1
  • a superstructure 14 is preferably rotatably mounted on a chassis 12, which may be designed as a crawler chassis.
  • a mast 20 can be arranged on the front of the superstructure 14, which has an operator's cabin 16, via a linkage mechanism 22.
  • the mast 20 can be designed as a mast with a front linear guide 24, along which a carriage 26 with a drilling drive 28 can be vertically moved and guided by means of a feed winch 27.
  • a drilling tool 34 is preferably arranged on the underside of a Kelly bar 32.
  • the Kelly bar 32 can be driven in a rotary manner, in particular via the drilling drive 28, and is held vertically adjustable on the mast 20 by means of a cable 36.
  • Counterweights 15 and a gas supply unit 40 can be arranged at the rear of the superstructure 40.
  • a construction machine 10 as a drilling device in accordance with Fig. 1 is merely an example, whereby the construction machine 10 may also be designed in other ways, in particular with other construction work equipment 30 for civil engineering, such as a diaphragm wall cutter, a ram or a vibrator.
  • FIG. 2 A possible embodiment of a superstructure 14 for a construction machine 10 according to the invention is shown in more detail.
  • the superstructure 14, which may have an operator's cabin 16 at its front and counterweights 15 at its rear, is equipped with at least one drive 18.
  • a box-shaped exchange unit 40 with a plurality of gas containers 42, in particular so-called gas cylinders, and a stationary unit 50 are arranged on the superstructure 14, preferably at the rear.
  • the stationary unit 50 may also have a plurality of gas containers for receiving gas.
  • the interchangeable unit 40 is easily detachable and replaceable on the upper carriage 14, so that it can be replaced relatively easily and quickly by a filled interchangeable unit 40 when emptying, for example by means of a crane or a wheel loader.
  • FIG. 3 A possible connection arrangement or distribution system for connecting multiple exchange units 40 is shown schematically.
  • a distribution device 60 is provided, to which, in the illustrated example, a total of three exchange units 40 with gas cylinders can be connected via corresponding detachable line connections.
  • a stationary unit 50, permanently mounted on the superstructure, and at least one drive 18 are connected to the distribution device 60.
  • the distribution device 60 can be equipped with a control system that enables a defined supply and delivery of gas from the exchange units 40 and the stationary unit 50 to the drive 18.
  • the distribution unit 60 ensures that the actuator 18 is supplied with gas via the stationary unit 50.
  • the control unit 60 can open or close the corresponding control valves to the changeover units 40 and the stationary unit 50.
  • the distribution device 60 ensures that the drive 18 is adequately supplied with gas from the exchange units 40. Furthermore, the control system of the distribution device 60 can ensure that the stationary unit 50 is also refilled with gas from the connected exchange units 40 as needed, so that the construction machine 10 can operate autonomously, particularly for travel, when the exchange units 40 are disconnected.
  • the distribution device can also be equipped with a pressure control device, in particular throttle valves and/or a compressor, to effect a defined pressure change during the supply or distribution of gas. Hydrogen is preferably used as the gas.
  • the drive 18 can be designed as a gas engine or a fuel cell.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (11)

  1. Engin de chantier mobile, notamment engin de génie civil, avec
    - un châssis (12),
    - une partie supérieure (14) agencée sur le châssis (12),
    - un dispositif de travail (20), qui est agencé sur la partie supérieure (14),
    - au moins un entraînement (18) fonctionnant au gaz et
    - au moins une unité interchangeable (40) montée de manière facilement démontable et remplaçable sur la partie supérieure (14) pour stocker du gaz, l'unité interchangeable (40 montée sur la partie supérieure (14) présentant une pluralité de réservoirs de gaz (42) reliés entre eux par des conduites et étant reliée à l'entraînement (18) pour l'amenée de gaz lors d'une opération de construction,
    caractérisé en ce qu'
    - une unité stationnaire (50) est en outre agencée de manière fixe sur la partie supérieure (14), laquelle est réalisée pour stocker une quantité minimale prédéfinie de gaz, ce qui permet de faire fonctionner l'entraînement (18) dans un mode de déplacement et/ou lors d'une opération de construction sans l'au moins une unité interchangeable (40).
  2. Engin de chantier mobile selon la revendication 1,
    caractérisé en ce que
    l'au moins une unité interchangeable (40) est montée sur un côté arrière de la partie supérieure (14), notamment dans la zone de contrepoids (15).
  3. Engin de chantier mobile selon la revendication 1 ou 2,
    caractérisé en ce que
    le dispositif de travail (30) est agencé sur un côté avant de la partie supérieure (14), notamment sur un mât (20).
  4. Engin de chantier mobile selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'
    il est prévu un appareil de distribution central (60) auquel sont raccordés l'unité stationnaire (50) et l'au moins une unité interchangeable (40), et en ce que l'appareil de distribution central (60) est réalisé pour commander une distribution de gaz entre l'au moins une unité interchangeable (40) et l'unité stationnaire (50) ainsi que pour amener du gaz à l'au moins un entraînement (18).
  5. Engin de chantier mobile selon la revendication 4,
    caractérisé en ce que
    plusieurs unités interchangeables (40) sont raccordées en parallèle les unes aux autres à l'appareil de distribution central (60).
  6. Engin de chantier mobile selon la revendication 4 ou 5,
    caractérisé en ce que
    l'appareil de distribution (60) comprend un appareil de réglage de pression pour régler, notamment augmenter et/ou réduire, une pression du gaz.
  7. Engin de chantier mobile selon la revendication 6,
    caractérisé en ce que
    l'appareil de réglage de pression présente un compresseur.
  8. Engin de chantier mobile selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    de l'hydrogène est prévu en tant que gaz.
  9. Engin de chantier mobile selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    l'entraînement (18) comprend un moteur à gaz ou une pile à combustible.
  10. Procédé pour faire fonctionner un engin de chantier mobile (10) selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que,
    - dans une opération de construction, au moins une unité interchangeable (40) est montée sur la partie supérieure (14), à partir de laquelle du gaz est amené à l'au moins à un entraînement (18), et
    - en ce que, dans un mode de déplacement et/ou lors d'une opération de construction, l'au moins une unité interchangeable (40) est retirée de la partie supérieure (14) et du gaz est amené à l'au moins un entraînement (18) à partir de l'unité stationnaire (50).
  11. Procédé selon la revendication 10,
    caractérisé en ce que
    du gaz est amené de manière commandée à l'entraînement (18) à partir de l'au moins une unité interchangeable (40) et de l'unité stationnaire (50) par l'intermédiaire d'un appareil de distribution (60).
EP23708758.0A 2022-03-15 2023-03-01 Engin de chantier mobile et procédé de fonctionnement de l'engin de chantier Active EP4493784B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022105947.2A DE102022105947A1 (de) 2022-03-15 2022-03-15 Mobile baumaschine und verfahren zum betrieb der baumaschine
PCT/EP2023/055124 WO2023174685A1 (fr) 2022-03-15 2023-03-01 Engin de chantier mobile et procédé de fonctionnement de l'engin de chantier

Publications (3)

Publication Number Publication Date
EP4493784A1 EP4493784A1 (fr) 2025-01-22
EP4493784B1 true EP4493784B1 (fr) 2025-12-03
EP4493784C0 EP4493784C0 (fr) 2025-12-03

Family

ID=85476242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23708758.0A Active EP4493784B1 (fr) 2022-03-15 2023-03-01 Engin de chantier mobile et procédé de fonctionnement de l'engin de chantier

Country Status (3)

Country Link
EP (1) EP4493784B1 (fr)
DE (1) DE102022105947A1 (fr)
WO (1) WO2023174685A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2642816A (en) * 2024-07-15 2026-01-28 Bamford Excavators Ltd A working machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001163593A (ja) * 1999-12-08 2001-06-19 Komatsu Forklift Co Ltd ガス容器取り付け装置
DE102011106538A1 (de) * 2011-07-04 2013-01-10 Liebherr-Werk Nenzing Gmbh Arbeitsmaschine
ITTO20120803A1 (it) 2012-09-17 2014-03-18 Soilmec Spa Macchina operatrice semovente da cantiere, in particolare per le fondazioni speciali, e metodo per controllare il suo rifornimento.
KR20150108667A (ko) * 2014-03-18 2015-09-30 현대중공업 주식회사 중장비의 가스탱크 내장형 카운터 웨이트
WO2018234810A1 (fr) * 2017-06-23 2018-12-27 J.C. Bamford Excavators Ltd Système à deux carburants pour véhicules de travail

Also Published As

Publication number Publication date
DE102022105947A1 (de) 2023-09-21
EP4493784A1 (fr) 2025-01-22
WO2023174685A1 (fr) 2023-09-21
EP4493784C0 (fr) 2025-12-03

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