EP4215717B1 - Machine de construction et procédé de fonctionnement d'une machine de construction - Google Patents

Machine de construction et procédé de fonctionnement d'une machine de construction Download PDF

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Publication number
EP4215717B1
EP4215717B1 EP22152299.8A EP22152299A EP4215717B1 EP 4215717 B1 EP4215717 B1 EP 4215717B1 EP 22152299 A EP22152299 A EP 22152299A EP 4215717 B1 EP4215717 B1 EP 4215717B1
Authority
EP
European Patent Office
Prior art keywords
cable
electric motor
construction machine
winch
drive
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
EP22152299.8A
Other languages
German (de)
English (en)
Other versions
EP4215717C0 (fr
EP4215717A1 (fr
Inventor
Matthias Osterland
Marco Voigt
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
Priority to EP22152299.8A priority Critical patent/EP4215717B1/fr
Priority to CN202310036685.4A priority patent/CN116605779A/zh
Priority to US18/154,610 priority patent/US20230228153A1/en
Publication of EP4215717A1 publication Critical patent/EP4215717A1/fr
Application granted granted Critical
Publication of EP4215717C0 publication Critical patent/EP4215717C0/fr
Publication of EP4215717B1 publication Critical patent/EP4215717B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B7/023—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting the mast being foldable or telescopically retractable
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/16—Applications of indicating, registering, or weighing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/60—Derricks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/12—Driving gear incorporating electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/42—Control devices non-automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/42—Control devices non-automatic
    • B66D1/46—Control devices non-automatic electric
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/008—Winding units, specially adapted for drilling operations
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • 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
    • E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation

Definitions

  • the invention relates to a construction machine according to claim 1.
  • the invention further relates to a method for operating a construction machine according to claim 7.
  • Construction machines with a mast along which a tool is movably mounted, which is suspended on a rope for raising and lowering the tool have been known for a long time.
  • a cable winch is usually driven by a hydraulic motor, which is supplied with hydraulic fluid by a hydraulic pump.
  • the hydraulic pump is usually driven by an internal combustion engine, in particular a diesel engine.
  • the invention is based on the object of specifying a construction machine and a method for operating a construction machine, which enable particularly economical, environmentally friendly and reliable operation.
  • the construction machine according to the invention which is designed in particular as a drilling device, comprises a mast along which a tool device is movably mounted, the tool device being suspended on a rope which can be actuated to raise and lower the tool device by means of a cable winch, which is driven by an electric motor is driven as a winch drive in a drive mode, wherein the electric motor is designed to operate in a recuperation mode, in which the electric motor generates and emits electrical energy when the tool device is lowered, and a controller which is designed, depending on a predefinable setpoint, to control the electric motor in such a way that the rope operates both in the drive mode as well as in the recuperation mode of the electric motor.
  • a first aspect of the invention is to use an electric motor to drive the cable winch, which can be operated in both a drive mode and a recuperation mode.
  • This electrical energy can be delivered to an energy storage or an electrical energy consumer of the construction machine. In this way, the machine's energy consumption is reduced, which is economical and environmentally friendly.
  • the invention is not limited to the use of a recuperatively operated electric motor for the cable winch.
  • a control is provided with which the electric motor is operated both in the drive mode and in particular in the recuperation mode in such a way that a predetermined cable tension is guaranteed. For example, at certain operating times, such as when a tool suspended on a rope, such as a drilling tool, is lowered into a borehole filled with liquid, when it hits the liquid surface, the tool can be braked and then sink at a lower rate of descent.
  • the control ensures that the electric motor operated as a generator in recuperation mode is operated with a lower electromotive resistance, i.e. a lower braking resistor with reduced recuperation power, or, if necessary, with a certain retraction torque when the tool device is lowered further, so that the desired rope tension is ensured.
  • a specified rope tension in every operating state ensures that no slack rope forms on the winch or the deflection pulleys. This could otherwise cause the rope to jump out of the turns or the pulleys, resulting in an increased risk Rope wear, damage to the rope or an interruption of operation resulting in repairs to the construction machine.
  • the setpoint for the electric motor is a predetermined cable pull force. This means that a minimum cable tension can be set and specified directly via a control.
  • the controller can accordingly control the power or the electromotive resistance of the electric motor, particularly in recuperation mode.
  • a force measuring device is provided for measuring the cable pull force and that the force measuring device is connected to the controller for controlling/regulating the electric motor depending on the measured cable pull force.
  • the force measuring device With the force measuring device, the tensile force on the rope can be determined directly and used via the controller to control the electric motor. Through this feedback of the measured value, the control can be used to regulate the electric motor depending on the cable pull force.
  • the force measuring device can be designed in any suitable way. According to one embodiment of the invention, it is particularly expedient for the force measuring device to have a force measuring pin on a deflection pulley of the rope or a force measuring bracket on a winch bracket of the rope winch.
  • a direct detection of a force can be achieved, for example using a load cell or force measuring strips.
  • a uniform cable pulling force can be set for various operating situations, in particular for raising and lowering the tool device.
  • the predeterminable cable pulling force can be changed by the control.
  • a corresponding input device for an operator or an automatic change according to a predetermined control program can be provided.
  • the cable pulling force can change depending on the operating mode. For example, a different minimum cable pulling force can be provided when lowering the tool device than when lifting it.
  • the respective default value can be retrieved from a memory or entered by an operator.
  • the default value for the cable pulling force can also depend on the tool device selected and installed.
  • the construction machine can be designed in any suitable way, in which a tool device is raised and lowered on a mast using a rope.
  • the arrangement according to the invention for recuperating energy is particularly economical, particularly when the tool device is repeatedly raised and lowered along the mast. This can be useful, for example, with a ram, a vibrator or a diaphragm wall cutter or a diaphragm wall grab, such as those used in particular in civil engineering.
  • the construction machine is designed as a drilling device, on the mast of which a rotary drilling drive is adjustably mounted, which can be moved along the mast via at least one actuator.
  • the tool device can in particular be a telescopic Kelly bar with a drilling tool.
  • the inner rod of the Kelly rod can be raised and lowered together with the drilling tool via the rope.
  • the drilling tool can be designed in any way, in particular as a drilling auger or particularly preferably as a drilling bucket.
  • the invention is particularly economical, particularly in the case of discontinuous drilling with frequent retraction of the drilling tool to empty it.
  • the mast can be designed as a leader, in particular a telescopic leader.
  • the leader has a linear guide along its front, on which a work carriage is guided in a vertically movable manner as or for the tool device.
  • the invention further comprises a method for operating a construction machine with a mast along which a tool device is movably mounted, the tool device being suspended on a rope, which is actuated to raise and lower the tool device by means of a cable winch, which is driven by an electric motor as a winch is driven in a drive mode, the electric motor being designed to operate in a recuperation mode, in which the electric motor generates and emits electrical energy when the tool device is lowered, the electric motor being controlled by a controller depending on a predeterminable setpoint, so that the rope is tensioned both in the drive mode and in the recuperation mode of the electric motor.
  • the method according to the invention can be carried out in particular by the construction machine described above. The advantages described above can be achieved with the method.
  • the control allows the electromotive resistance of the electric motor to be set and changed in recuperation mode, so that a predetermined minimum value for the rope tension is ensured.
  • a preferred method variant is that the electric motor is controlled as a setpoint depending on a predeterminable cable pulling force. In this way, a minimum cable pulling force can be specified immediately.
  • the predeterminable rope force is changed by the control. This can be done via an input device directly by an operator or automatically according to a predetermined control program depending on certain operating parameters. For example, a different cable pulling force can be specified when lifting than when lowering. The specified cable pulling force can also change depending on the tool device used.
  • a particularly good process control is achieved according to an embodiment variant of the invention in that a cable pull force is measured by means of a force measuring device, the force measuring device being connected to the control, the electric motor being controlled or regulated depending on the measured cable pull force.
  • a force measuring device Using the force measuring device, an actual cable tension force on the cable can be determined.
  • This actual cable pulling force is compared with the specified target cable pulling force.
  • the control of the cable winch drive can be controlled in such a way that at least the actual cable pulling force is not less than the specified target cable pulling force, which is specified as the minimum force for a desired cable tension.
  • control can also be designed in such a way that it adjusts the actual cable pulling force to the given target cable pulling force or at least a target range for the target cable tension is adjusted.
  • a maximum cable pulling force can also be set in the control as an upper limit. If the actual cable pulling force reaches the maximum cable pulling force, the electric motor of the cable winch is controlled until the actual cable pulling force falls below the maximum cable pulling force value again.
  • the only drawing shows a side view of a construction machine 10 according to the invention with a carrier device 12.
  • the carrier device 12 comprises a crawler chassis as an undercarriage 14, on which a superstructure 16 is rotatably mounted.
  • a control 60 for the construction machine 10 is located in an operating cabin of the superstructure 16.
  • a mast 20 is adjustably mounted on the superstructure 16 via an articulation mechanism 18, which has a substantially vertical position during operation.
  • the mast 20 can be designed as a leader 21 with a linear guide 24 on its front.
  • a work carriage 38 with a rotary drilling drive 36 can be mounted so that it can move vertically along the linear guide 24.
  • the drawing shows an upper position of the rotary drill drive 36 and a lower position with broken lines.
  • a rope 40 can be guided over a mast head 22 at the upper end of the mast 20, at one end of which a preferably telescopic Kelly rod 32 with a drilling tool 34 is provided as a tool device 30.
  • the Kelly rod 32 can be guided on the work carriage 38 by a sleeve-shaped drive wheel of the rotary drill drive 36, so that a torque can be transmitted from the rotary drill drive 36 to the Kelly rod 32 via driver strips (not shown).
  • a drilling tool 34 for creating a borehole in the ground.
  • the drilling tool 34 can basically be of any design and in particular have a drilling auger or a drilling bucket.
  • the rope 40 is guided via deflection rollers 26 on the mast head 22 along the mast 20 to a cable winch 46 in the superstructure 16.
  • the cable winch 46 is driven via an electric motor 50, which can also be operated in a recuperation mode.
  • the Kelly bar 32 can be raised and lowered with the drilling tool 34 using the cable 40 via the cable winch 46. When lowering, positional energy can be converted into electrical energy by the electric motor 50 and delivered to a storage device or an electrical consumer.
  • the work carriage 38 with the rotary drilling drive 36 can be pulled upwards using another adjusting cable 29.
  • the actuator 28 can also be equipped with an electric motor, not shown, which can also be operated in recuperation mode.
  • the work carriage 38 with the rotary drill drive 36 can also be viewed as part of the tool device 30.
  • a force measuring device 62 is preferably arranged on a deflection roller 26 on the mast head 22.
  • the force measuring device 62 can be designed, for example, as a force measuring pin, through which a cable pulling force on the cable 40 can be detected.
  • the force measuring device 62 is connected to the control 60 on the superstructure 16.
  • the at least one electric motor 50 for operating the cable winch 46 and preferably also the further electric motor for operating the actuator 28 designed as a winch are controlled via the controller 60.
  • the control of the electric motor 50 by the controller 60 takes place in such a way that, depending on a predetermined setpoint for the cable pulling force, the at least one electric motor 50 is controlled in such a way that the cable 40 has a minimum voltage not only in the drive mode, but also in the recuperation mode of the electric motor 50 having.
  • an electromotive resistance of the at least one electric motor 50 can be controlled and changed by the controller 60, with the recuperation power of the electric motor 50 also changing accordingly.
  • the control 60 is designed overall so that a minimum tension of the rope 40 is guaranteed, even if this reduces the recuperation power of the electric motor 50 compared to a maximum possible value, at least for a certain period of time.
  • Sufficient rope tension ensures that no slack rope forms, for example when the drilling tool 34 is braked when it is lowered into a borehole filled with liquid. This avoids the formation of slack rope with the risk of the rope 40 jumping out of the deflection pulley 26 or a disordered winding on the rope winch 46.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Automation & Control Theory (AREA)
  • Earth Drilling (AREA)

Claims (10)

  1. Engin de chantier, en particulier appareil de forage, avec
    un mât (20), le long duquel un dispositif d'outil (30) est monté mobile, dans lequel le dispositif d'outil (30) est suspendu à un câble (40), lequel pour le levage et l'abaissement du dispositif d'outil (30) peut être actionné au moyen d'un treuil (46), lequel est entraîné par un moteur électrique (50) en tant qu'entraînement de treuil dans un mode d'entraînement,
    dans lequel le moteur électrique (50) est réalisé pour fonctionner dans un mode de récupération, dans lequel le moteur électrique (50) lors de l'abaissement du dispositif d'outil (30) produit et délivre de l'énergie électrique, et
    une commande (60), laquelle est réalisée pour commander le moteur électrique (50) en fonction d'une valeur de consigne pouvant être prédéfinie, de sorte que le câble (40) est tendu aussi bien dans le mode d'entraînement que dans le mode de récupération du moteur électrique (50).
  2. Engin de chantier selon la revendication 1,
    caractérisé en ce
    que la valeur de consigne pour le moteur électrique (50) est une force de traction de câble prédéfinie.
  3. Engin de chantier selon la revendication 2,
    caractérisé en ce
    qu'un dispositif de mesure de force (62) pour mesurer la force de traction de câble est prévu et que le dispositif de mesure de force (62) est relié à la commande (60) pour commander/réguler le moteur électrique (50) en fonction de la force de traction de câble mesurée.
  4. Engin de chantier selon la revendication 3,
    caractérisé en ce
    que le dispositif de mesure de force (62) présente un boulon de mesure de force sur une poulie de renvoi (26) du câble (40) ou une languette de mesure de force sur un support de treuil du treuil (46).
  5. Engin de chantier selon l'une quelconque des revendications 2 à 4,
    caractérisé en ce
    que la force de traction de câble pouvant être prédéfinie peut être modifiée par la commande (60).
  6. Engin de chantier selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce
    que l'engin de chantier (10) est réalisé en tant qu'appareil de forage, sur le mât (20) duquel un entraînement de forage rotatif (36) est monté mobile, lequel est déplaçable le long du mât (20) par l'intermédiaire d'au moins un entraînement de réglage (28).
  7. Procédé pour faire fonctionner un engin de chantier (10), en particulier selon l'une quelconque des revendications 1 à 6, avec un mât (20), le long duquel un dispositif d'outil (30) est monté mobile, dans lequel le dispositif d'outil (30) est suspendu à un câble (40), lequel pour le levage et l'abaissement du dispositif d'outil (30) est actionné au moyen d'un treuil (46), lequel est entraîné par un moteur électrique (50) en tant qu'entraînement de treuil dans un mode d'entraînement, dans lequel le moteur électrique (50) est réalisé pour fonctionner dans un mode de récupération, dans lequel le moteur électrique (50) lors de l'abaissement du dispositif d'outil (30) produit et délivre de l'énergie électrique,
    dans lequel le moteur électrique (50) est commandé par une commande (60) en fonction d'une valeur de consigne pouvant être prédéfinie, de sorte que le câble (40) est tendu aussi bien dans le mode d'entraînement que dans le mode de récupération du moteur électrique (50).
  8. Procédé selon la revendication 7,
    caractérisé en ce
    que le moteur électrique (50) est commandé en fonction d'une force de traction de câble prédéfinie en tant que valeur de consigne.
  9. Procédé selon la revendication 8,
    caractérisé en ce
    que la force de traction de câble pouvant être prédéfinie est modifiée par la commande (60) ou un utilisateur.
  10. Procédé selon l'une quelconque des revendications 7 à 9,
    caractérisé en ce
    qu'une force de traction de câble est mesurée au moyen d'un dispositif de mesure de force (62),
    dans lequel le dispositif de mesure de force (62) est relié à la commande (60),
    dans lequel le moteur électrique (50) est commandé ou réglé en fonction de la force de traction de câble mesurée.
EP22152299.8A 2022-01-19 2022-01-19 Machine de construction et procédé de fonctionnement d'une machine de construction Active EP4215717B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22152299.8A EP4215717B1 (fr) 2022-01-19 2022-01-19 Machine de construction et procédé de fonctionnement d'une machine de construction
CN202310036685.4A CN116605779A (zh) 2022-01-19 2023-01-10 工程机械和用于运行工程机械的方法
US18/154,610 US20230228153A1 (en) 2022-01-19 2023-01-13 Construction machine and method for operating a construction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22152299.8A EP4215717B1 (fr) 2022-01-19 2022-01-19 Machine de construction et procédé de fonctionnement d'une machine de construction

Publications (3)

Publication Number Publication Date
EP4215717A1 EP4215717A1 (fr) 2023-07-26
EP4215717C0 EP4215717C0 (fr) 2023-12-06
EP4215717B1 true EP4215717B1 (fr) 2023-12-06

Family

ID=79730349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22152299.8A Active EP4215717B1 (fr) 2022-01-19 2022-01-19 Machine de construction et procédé de fonctionnement d'une machine de construction

Country Status (3)

Country Link
US (1) US20230228153A1 (fr)
EP (1) EP4215717B1 (fr)
CN (1) CN116605779A (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8630852U1 (fr) * 1986-11-18 1988-01-14 Philipp Holzmann Ag, 6000 Frankfurt, De
DE9005485U1 (fr) * 1990-05-14 1990-07-19 Bauer Spezialtiefbau Gmbh, 8898 Schrobenhausen, De
DE102009007916A1 (de) * 2009-02-06 2010-08-19 Franki Grundbau Gmbh & Co.Kg Ramme mit Wirbelstromkupplung
DE102014109918A1 (de) * 2014-07-15 2016-01-21 Bauer Maschinen Gmbh Baumaschine und Verfahren zum Steuern einer Baumaschine
JP6796977B2 (ja) * 2016-09-23 2020-12-09 コベルコ建機株式会社 電動ウインチ装置

Also Published As

Publication number Publication date
CN116605779A (zh) 2023-08-18
EP4215717C0 (fr) 2023-12-06
EP4215717A1 (fr) 2023-07-26
US20230228153A1 (en) 2023-07-20

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