EP4148192B1 - Machine hydraulique dotée d'une flèche pivotante autour d'un axe de pivotement - Google Patents

Machine hydraulique dotée d'une flèche pivotante autour d'un axe de pivotement

Info

Publication number
EP4148192B1
EP4148192B1 EP22188901.7A EP22188901A EP4148192B1 EP 4148192 B1 EP4148192 B1 EP 4148192B1 EP 22188901 A EP22188901 A EP 22188901A EP 4148192 B1 EP4148192 B1 EP 4148192B1
Authority
EP
European Patent Office
Prior art keywords
lowering
hydraulic
load
boom
sensor
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
EP22188901.7A
Other languages
German (de)
English (en)
Other versions
EP4148192A1 (fr
Inventor
Andreas Wizgall
Manuel Berger
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.)
Kramer Werke GmbH
Original Assignee
Kramer Werke 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 Kramer Werke GmbH filed Critical Kramer Werke GmbH
Publication of EP4148192A1 publication Critical patent/EP4148192A1/fr
Application granted granted Critical
Publication of EP4148192B1 publication Critical patent/EP4148192B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/16—Platforms; Forks; Other load supporting or gripping members inclinable relative to mast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • 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
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3058—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/31552—Directional control characterised by the connections of the valve or valves in the circuit being connected to an output member and a return line
    • F15B2211/31558—Directional control characterised by the connections of the valve or valves in the circuit being connected to an output member and a return line having a single output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/41—Flow control characterised by the positions of the valve element
    • F15B2211/411—Flow control characterised by the positions of the valve element the positions being discrete
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the return line, i.e. meter-out control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/88—Control measures for saving energy

Definitions

  • the invention relates to a hydraulic machine, in particular a motor vehicle such as an excavator, wheel loader, tractor, telescopic loader or the like, with a boom pivotable about a pivot axis with respect to a frame according to the preamble of claim 1.
  • a motor vehicle such as an excavator, wheel loader, tractor, telescopic loader or the like
  • vehicles such as excavators, wheel loaders, telehandlers, snow groomers, tractors, combine harvesters, forage harvesters, forestry/hauling cranes, so-called “harvesters,” front loaders, etc. have been in use for years, e.g., in civil engineering, recycling and waste management, gardening and landscaping, as well as in forestry and agriculture.
  • loads or tools can be attached to a boom or swivel arm.
  • other tools such as load hooks, concrete buckets, sweepers, work platforms, cable winches, dozer blades, and grapples can also be used.
  • Quick-change plates are available for rapid tool changes.
  • Loading systems of telescopic loaders have a lifting arm with at least one extension stage, which is usually pivotally mounted at the rear of the vehicle. Lowering the boom or lifting arm is accomplished by a hydraulic lifting cylinder, which is controlled or actuated by the driver via a directional control valve. In addition to the directional control valve, a lowering brake valve is used for controlled lowering of the load.
  • the object of the invention is therefore to propose a hydraulic machine, in particular a motor vehicle, which, compared to the prior art, realizes an improved or more efficient mode of operation, in particular an improved pressurization or energy utilization of the hydraulic system.
  • This measure(s) will make the hydraulic system significantly more flexible during the lowering process. This allows for, among other things, a particularly energy-efficient and/or automated and/or more "smooth" or even/continuous lowering operation.
  • the lowering operation was carried out according to the switching positions of the actuators or control valves or the like set/actuated by the driver.
  • the hydraulic system could not and did not intervene automatically in the lowering operation.
  • the advantageous lowering sensor can now detect an advantageous actual lowering parameter during the lowering operation and use it for improved This enables previously unattainable improvements to the hydraulic system, particularly for energy-saving and/or more continuous boom lowering operations.
  • the senor can detect this actual state or the corresponding actual lowering parameter and use it to advantageously adapt and/or modify the lowering process or operation.
  • This opens up completely new (more automated) operating possibilities with significantly improved comfort and/or energy consumption.
  • the pressure generation unit can be operated less frequently or for a shorter period of time, which can reduce energy consumption.
  • part of the oil is not fed into the tank, but is fed directly back to the piston rod side.
  • an advantageous retrofitting of previously conventional hydraulic systems can be realized in an advantageous manner without major structural and/or economic as well as control-technical expenditure.
  • the described so-called "gravity lowering” function can also be used as in Figure 4 shown can be realized with another, switchable lowering brake valve 13 or another lowering brake unit, which in turn comprises various check valves and/or load holding valves (cf. Figure 4 ).
  • the individual, separate and switchable regeneration valve 14 can be used according to Figure 2 Compared to Figure 3
  • the relief valve 15.2 is shown in the alternative position. In this circuit, the relief valve 15.2 can also optionally be arranged on the piston crown side (not shown in detail).
  • the invention leads to particular advantages or effects if, for example, with sufficient weight force (load pressure), the loading system or the boom 1.1 can be lowered in a controlled manner without the assistance of the motor or the pump P, thereby saving energy.
  • load pressure sufficient weight force
  • control valve 12 By bypassing control valve 12 also eliminates the need for oil flow and pressure from pump P to lower the loading system or boom 1.1. This allows for the advantageous parallel operation of multiple hydraulic consumers in the hydraulic system, resulting in a higher usable pump flow rate for the other hydraulic consumers/components. Furthermore, throttling losses are avoided when operating multiple consumers at different pressure levels.
  • the advantageous variants of the invention can be easily retrofitted and thus be used as options for the customer which advantageously increases flexibility and convenience for the customer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Claims (10)

  1. Machine hydraulique (1), en particulier véhicule automobile (1) tel qu'une pelleteuse, un chargeur sur pneus, un tracteur, un chariot télescopique (1) ou analogue, présentant une flèche (1.1) pouvant pivoter par rapport à un châssis (1.6) autour d'un axe de pivotement (1.8), dans laquelle la flèche (1.1) comprend un dispositif de support de charge (1.3) destiné à supporter/fixer un support de charge (1.4) tel qu'un outil (1.4) ou analogue, en particulier une fourche (1.4), un grappin, un godet ou une nacelle, dans laquelle un vérin de levage (2.1) présentant un piston (22) et une tige (23) de piston est prévu pour le pivotement, en particulier le levage et l'abaissement, de la flèche (1.1) par rapport au châssis (1.6), dans laquelle le vérin de levage (2.1) est conçu comme un vérin à double effet (2.1) présentant une chambre (20) de piston et une chambre (21) de tige de piston, dans laquelle une unité hydraulique comprenant au moins un dispositif de génération de pression (P), en particulier une pompe hydraulique (P), pour la mise sous pression d'un(e) huile/liquide hydraulique est prévue pour l'actionnement et/ou la mise sous pression du vérin de levage (2.1), en particulier de la chambre (20) de piston et/ou de la chambre (21) de tige de piston, dans laquelle au moins un élément de commande (12) de vérin de levage, pouvant être commandé au moyen d'une unité de commande (7), en particulier une vanne unidirectionnelle (12), est prévu pour la commande du vérin de levage (2.1) et/ou pour la commutation entre un fonctionnement d'abaissement pour l'abaissement de la flèche (1.1) et/ou un fonctionnement de levage pour le levage de la flèche (1.1) et/ou un fonctionnement de maintien pour le maintien de la flèche (1.1), caractérisée en ce qu'au moins un capteur d'abaissement (6) générant un signal d'abaissement (8) est prévu pour la détection d'un paramètre d'abaissement instantané du fonctionnement d'abaissement, en ce qu'une unité de comparaison (9) de valeur instantanée-valeur de consigne générant au moins un signal de commande d'abaissement (16, 17, 18) est prévue pour la comparaison du paramètre d'abaissement instantané à un paramètre de consigne et/ou limite, où, dans le cas où le paramètre d'abaissement instantané correspond au paramètre de consigne et/ou limite, le signal de commande d'abaissement est prévu pour l'actionnement de l'unité de commande (7) et/ou du dispositif de génération de pression (P) et/ou pour la commutation de l'élément de commande (12) de vérin de levage pouvant être commandé, de telle sorte qu'au moins une mise sous pression de l'huile/du liquide hydraulique de la chambre (21) de tige de piston est prévue et en ce que, dans le fonctionnement d'abaissement de la flèche (1.1), au moins une conduite de liaison de régénération (19) est prévue/conçue entre la chambre (20) de piston et la chambre (21) de tige de piston de telle sorte que de l'huile/du liquide hydraulique peut s'écouler à partir de la chambre (20) de piston vers la chambre (21) de tige de piston, la conduite de liaison de régénération (19) comprenant au moins un élément de freinage d'abaissement (13).
  2. Machine hydraulique selon la revendication 1, caractérisée en ce que le capteur d'abaissement (6) est conçu comme capteur de pression (6) pour la détection d'une pression de l'huile/du liquide hydraulique.
  3. Machine hydraulique selon la revendication 2, caractérisée en ce que le capteur de pression (6) est agencé dans la conduite de liaison de régénération (19) ainsi qu'entre la chambre (20) de piston et l'élément de freinage d'abaissement (13) ou dans/sur la chambre (20) de piston.
  4. Machine hydraulique selon l'une des revendications susmentionnées, caractérisée en ce que le capteur d'abaissement (6) est conçu comme capteur de charge pour la détection d'une charge/sollicitation de la flèche (1.1) et/ou du support de charge (1.4) et/ou du châssis (1.6).
  5. Machine hydraulique selon l'une des revendications susmentionnées, caractérisée en ce que le capteur d'abaissement/de charge (6) est conçu comme un capteur de châssis pour la détection d'une charge/sollicitation de châssis.
  6. Machine hydraulique selon la revendication 5, caractérisée en ce que le capteur de châssis est conçu comme capteur de charge d'essieu pour la détection d'une charge/sollicitation d'essieu d'un essieu de véhicule, en particulier l'essieu arrière.
  7. Machine hydraulique selon la revendication 6, caractérisée en ce que le capteur de charge d'essieu est conçu comme une jauge de contrainte pour la détection d'une flexion/modification de longueur de l'essieu de véhicule.
  8. Machine hydraulique selon l'une des revendications susmentionnées, caractérisée en ce qu'un dispositif de commande (7) est prévu pour la commande de l'élément de freinage d'abaissement (13), le dispositif de commande étant conçu au moins partiellement séparément de l'unité de commande (7) de l'élément de commande (12) de vérin de levage pouvant être commandé de telle sorte que l'élément de freinage d'abaissement (13) peut être commandé séparément de l'élément de commande (12) de vérin de levage.
  9. Machine hydraulique selon l'une des revendications susmentionnées, caractérisée en ce qu'au moins un(e) élément/soupape de décharge (15.1, 15.2) est prévu(e), au moins une unité de dérivation (30) étant agencée entre l'élément de freinage d'abaissement (13) et l'unité de commande (12) de vérin de levage et l'élément/la vanne de décharge (15.1, 15.2) étant agencé(e) entre l'unité de dérivation (30) et un accumulateur/réservoir hydraulique (T), de telle sorte que lors du fonctionnement d'abaissement, de l'huile/du liquide hydraulique (Q3) en excès de la chambre (20) de piston peut être introduit(e) dans l'accumulateur/réservoir hydraulique (T).
  10. Véhicule automobile (1), tel qu'une pelleteuse, un chargeur sur pneus, un tracteur, un chargeur télescopique (1) ou analogue, présentant une machine hydraulique selon l'une des revendications susmentionnées.
EP22188901.7A 2021-09-08 2022-08-04 Machine hydraulique dotée d'une flèche pivotante autour d'un axe de pivotement Active EP4148192B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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DE102022126009A1 (de) * 2022-10-07 2024-04-18 Kramer-Werke Gmbh Hydraulikmaschine mit einem um eine Schwenkachse verschwenkbaren Ausleger
DE102024109912A1 (de) * 2024-04-10 2025-10-16 Bucher Hydraulics Gmbh Verfahren zum Dämpfen von Schwingungen eines Anbaugerätes an einer mobilen Arbeitsmaschine
CN119195764A (zh) * 2024-09-09 2024-12-27 三一重型装备有限公司 自移机尾及其控制方法和控制装置、可读存储介质
CN120212107B (zh) * 2025-04-11 2025-09-19 青岛九合重工机械有限公司 一种滑移装载机集成式液压传动系统及智能监测控制方法

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DE10340505B4 (de) * 2003-09-03 2005-12-15 Sauer-Danfoss Aps Ventilanordnung zur Steuerung eines Hydraulikantriebs
DE102005039251A1 (de) 2005-08-19 2007-02-22 Deere & Company, Moline Ladegerät
WO2007019712A1 (fr) 2005-08-19 2007-02-22 Bucher Hydraulics Ag Montage pour commander un cylindre d'entrainement hydraulique a double effet
US9394922B2 (en) * 2013-08-29 2016-07-19 Caterpillar Global Mining Llc Hydraulic control circuit with regeneration valve
US20180112686A1 (en) 2016-10-26 2018-04-26 Hydraforce, Inc. Hydraulic actuator system of vehicle having secondary load-holding valve with tank connection
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