EP2855945A1 - Système hydraulique - Google Patents

Système hydraulique

Info

Publication number
EP2855945A1
EP2855945A1 EP13711642.2A EP13711642A EP2855945A1 EP 2855945 A1 EP2855945 A1 EP 2855945A1 EP 13711642 A EP13711642 A EP 13711642A EP 2855945 A1 EP2855945 A1 EP 2855945A1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
pump
primary circuit
oil
circuit
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.)
Granted
Application number
EP13711642.2A
Other languages
German (de)
English (en)
Other versions
EP2855945B2 (fr
EP2855945B1 (fr
Inventor
Jan-Martin VEIT
Werner MÜNZENMAIER
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.)
Putzmeister Engineering GmbH
Original Assignee
Putzmeister Engineering 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
Family has litigation
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Application filed by Putzmeister Engineering GmbH filed Critical Putzmeister Engineering GmbH
Publication of EP2855945A1 publication Critical patent/EP2855945A1/fr
Application granted granted Critical
Publication of EP2855945B1 publication Critical patent/EP2855945B1/fr
Publication of EP2855945B2 publication Critical patent/EP2855945B2/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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/117—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other
    • F04B9/1176—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor
    • F04B9/1178—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor the movement in the other direction being obtained by a hydraulic connection between the liquid motor cylinders
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/027—Check valves
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/028—Shuttle valves
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input
    • F15B7/006—Rotary pump input
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20561—Type of pump reversible
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/26—Power control functions
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/27—Directional control by means of the pressure source
    • 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
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple 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
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31594—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having multiple pressure sources and multiple 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/4159—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source, an output member and a return line
    • 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
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/61—Secondary circuits
    • F15B2211/613—Feeding 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
    • F15B2211/70—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
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
    • 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
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
    • F15B2211/7121—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in series
    • 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
    • F15B2211/78—Control of multiple output members
    • F15B2211/781—Control of multiple output members one or more output members having priority

Definitions

  • the invention relates to a hydraulic system, preferably for activating and actuating a mobile thick matter pump, having a primary hydraulic circuit driving a first hydraulic consumer comprising at least one hydraulic drive unit comprising at least one motor-driven hydraulic pump, with a secondary circuit driving a second hydraulic consumer comprising a second hydraulic drive unit comprising at least one further motor-driven hydraulic pump, the hydraulic consumers arranged in the primary circuit and in the secondary circuit being independently pressurized with hydraulic oil from a tank in a first operating state via their hydraulic drive units.
  • Hydraulic systems of this type are used, for example, for driving and operating mobile thick matter pumps, which have arranged in the primary circuit hydraulic drive mechanism for the sludge pump and arranged in the secondary hydraulic drive and control mechanism for a trained example as articulated boom boom.
  • the drive mechanism of the slurry pump and the distributor boom is indeed operated simultaneously but independently via their respective hydraulic pumps.
  • the oil supply in the hydraulic circuits is limited by the amount of oil delivered by the associated hydraulic pumps.
  • the object of the invention is to improve the known hydraulic system of the type specified at the outset so that an increased operating speed is made possible for specific tasks within the hydraulic system for a given pump power in the various hydraulic circuits.
  • the object of the invention is primarily achieved in that in a second operating state at standstill of the first consumer at least a portion of the hydraulic oil from the primary circuit is fed to the secondary circuit for controlling the second consumer. With this measure, more oil is provided for the operation of the second consumer without increasing the speed of the motor-driven hydraulic pumps and thus achieves a higher performance, in particular a higher operating speed.
  • the first consumer arranged in the primary circuit is expediently designed as a hydraulic drive mechanism of the slurry pump, while the second consumer arranged in the secondary circuit is designed as a drive and control mechanism of a distributor mast comprising a plurality of master arms.
  • the measure according to the invention can be used, for example, for the automatic folding and unfolding of the partition. lermasts be used by oil from the main circuit of the slurry pump is fed to the mast circle, for example via a suitable valve control.
  • the hydraulic drive mechanism of the slurry pump has two connected via a respective piston rod to a delivery cylinder hydraulic drive cylinder, which at one end via a main line with the at least one arranged in the primary circuit hydraulic pump and at its other end via a swing oil line are interconnected, wherein the primary circuit and the secondary circuit are connected to each other via a connecting line, in which a first, the oil flow selectively releasing or blocking control valve is arranged.
  • a second control valve which selectively blocks or releases the oil flow to the tank is expediently arranged within the primary circuit.
  • a further embodiment provides that within the primary circuit at least a third, the oil flow to, from or between the hydraulic cylinders selectively blocking or releasing control valve is arranged.
  • a further advantageous embodiment of the invention provides that in the closed primary circuit at least one reversible and adjustable main pump and a pressure side in the primary circuit and the suction side opening into the tank feed pump is arranged.
  • a first embodiment variant provides in this case that the connecting line containing the control valve is branched off from one of the main lines of the primary circuit. In order for the main pump to be able to build up the pressure required for the boom control, in this case the main pump is actuated in such a way that the pressure side of the main pump is at the relevant main line. Accordingly, in this case, the piston of the drive cylinder connected to the main line in question has to be moved into its swinging oil passage. adjacent end position.
  • the connecting line containing the control valve is connected via a respective check valve to one of the main lines of the primary circuit. As a result, the main pump can optionally be controlled such that the pressure side is located either on one or the other main line.
  • a flow-releasing or blocking control valve may be arranged in the swing oil line between the hydraulic cylinders.
  • a further advantageous or alternative embodiment for this purpose may consist in that in the region of the end positions of the drive cylinder equipped with supply and Abspeiseventilen Hubaus GmbHsschleifen are arranged, and that in at least one of the Hubaus GmbHsschleifen designed as a shut-off valve control valve or optionally with the secondary circuit connectable directional control valve is arranged.
  • FIG. 1 to 6 are hydraulic circuit arrangements of hydraulic systems with a closed primary circuit for actuating a two-cylinder slurry pump and a secondary circuit for the control of a distribution boom;
  • Figures 7 and 8 are hydraulic circuit arrangements of hydraulic systems with open primary circuit for driving and actuating a two-cylinder slurry pump and with a secondary circuit for the control of a distribution boom.
  • the hydraulic circuits shown in the drawing are intended for thick matter pumps, which have two delivery cylinders, not shown, whose front-side openings open into a material feed container and off alternately during the pressure stroke via a diverter valve with a delivery line are connectable.
  • the delivery cylinders are driven by hydraulic drive cylinders 7, 8, which are arranged in a first primary circuit I, in push-pull.
  • the drive pistons of the drive cylinders 7, 8 are connected via a common piston rod to the delivery pistons in the delivery cylinders.
  • the drive cylinders 7, 8 form a first consumer in the primary circuit I, which also has a hydraulic drive unit comprising at least one motor-driven hydraulic pump 1, 2.
  • a secondary circuit II is provided which has a second hydraulic drive unit comprising a further motor-driven hydraulic pump 22.
  • the hydraulic consumers arranged in the primary circuit I and in the secondary circuit II can be acted upon independently of one another with hydraulic oil from a common tank 60 in a first operating state via their hydraulic drive units.
  • the primary circuit I with the drive cylinders 7,8 and the secondary circuit II with the mast control 24 may be simultaneously driven, but separately via their respective hydraulic pumps 1, 2,22.
  • a special feature of the invention is that in a second operating state at standstill of the hydraulic cylinder 7.8 comprehensive consumer at least a portion of the hydraulic oil from the primary circuit I in the secondary circuit II can be fed to control the distribution boom. With this measure, it is achieved that the extension and folding in of the distribution boom designed as a articulated mast can be carried out more quickly when the thick matter pump is at rest by supplying compressed oil from the primary circuit I.
  • the primary circuit I and the secondary circuit II are connected to each other via a connecting line 29, in which a first, the oil flow selectively releasing or blocking control valve 28 (FIGS. 1 to 4, 6 to 8) or 35 ( Figure 5).
  • a first, the oil flow selectively releasing or blocking control valve 28 FIGS. 1 to 4, 6 to 8) or 35 ( Figure 5).
  • the exemplary embodiments according to FIGS. 1 to 6 relate to hydraulic systems whose primary circuit I is designed as a closed hydraulic circuit.
  • the consumer-forming drive cylinders 7 and 8 are driven there via the main lines 17,18 via a reversible and adjustable main pump 1 in push-pull.
  • alternating flush valve 5 From the closed primary circuit I consisting of the main pump 1, main lines 17, 18, drive cylinders 7, 8 and rocker oil line 19, a corresponding quantity of oil is always discharged via the alternating flush valve 5 and the pressure limiting valve 6 into the tank 60 under atmospheric pressure. About the pressure relief valve 6 while the researchersspeisende amount of oil can be adjusted.
  • the alternating flushing valve 5 has two control lines 25, 26 connected to the main lines 17 and 18, which reciprocate the valve slide of the alternating flushing valve 5, depending on which side the high pressure is present. Via the outfeed lines 20 and 21, oil is then fed to the tank 60 via the main lines 17 or 18 from the low-pressure side.
  • a suction side connected to the tank 60 feed pump 2 is provided, via which one of the output at the Vietnamese hymnventil 5 amount of oil corresponding amount of oil through the main lines 17 and 18 connected check valves 3 and 4 again on the low pressure side of the main pump 1 is fed. Any excess amount flows via the pressure limiting valve 43 into the tank 60.
  • the piston 70 in the cylinder 7 has not yet reached its rod end position, while the piston 80 in the cylinder 8 is already in its bottom end position, oil is fed via the check valve 11, so that the piston 70 in the cylinder 7 is in its rod side End position can drive.
  • designed as a ball cock Kolbenendlagehahn 10 must be open.
  • the bottom-side check valve 1 1 corresponds on the side of the cylinder 8, the check valve 12, while the Kolbenendlagehahn 10 there corresponds to the Kolbenendla- 9.
  • Trained as a mast circle secondary circuit II includes a hydraulic pump 22, which can be configured either as a constant or variable displacement.
  • the hydraulic pump 22 is connected on the suction side to the tank 60 and on the pressure side via the pressure line 23 to the load designed as a mast control 24.
  • a control valve 28 designed as a 2/2-way valve is provided in the connecting line 29 between primary circuit I and secondary circuit II.
  • the directional control valve 28 blocks the connection between the primary circuit I. and the pressure line 23 from leaks oil-free, while in the switched position, the connection is turned on. So that the pressure required for the mast control 24 can be built up by the main pump 1, the main pump 1 is controlled so that in the case of FIG. 1 on the main line 17, the pressure side. Therefore, there must be driven the piston 70 of the drive cylinder 7 in its rod-side end position.
  • two additional check valves 30 and 31 are provided, via which a connection from the main lines 17 or 18 to the directional control valve 28 can be made.
  • the main pump 1 can be selectively controlled so that either the main line 17 or the main line 18, the pressure side. If the pressure side on the main line 18, the piston must be moved in the drive cylinder 8 in its rod-side end position.
  • an additional control valve 32 designed as a shut-off valve which, in the non-activated state, leads the oil discharged via the alternating flushing valve 5 and the pressure limiting valve 6 to the tank 60.
  • the control valve 32 is driven.
  • the connection to the tank 60 is blocked, so that no more oil can be fed to the tank 60.
  • This is the complete amount of oil of the feed pump 2 via the main pump 1 for feeding to the secondary circuit II available.
  • an additional shut-off valve 34 is provided between the throttle 16 and the check valve 13 of the Hubaus GmbH GmbH.
  • the piston 70 is located in the drive cylinder 7 in its rod-side end position and is built up due to the feed to the secondary circuit II (mast circle) pressure, oil flows from the main line 17 through the throttle 16, the connecting line 19 and the check valves 13,11 on the low pressure side 18. This oil is thus the Supply to mast circle not available.
  • the valve 34 In the non-activated state, the valve 34 is open. If the valve 34 is activated, no more oil can flow away and the complete oil quantity of the feed pump 2 is available for feeding into the secondary circuit.
  • a control valve 35 designed as a directional control valve is alternatively provided in the stroke compensation loop of the cylinder 7.
  • oil can flow via the throttle 16 and the check valve 13. If the directional control valve 35 is activated and the piston 70 is located in the drive cylinder 7 in its rod-side end position, a connection of the main line 17 via the drive cylinder 7 and the line 29 to the pressure line 23 of the secondary circuit II (mast circle) is produced. At the same time, the supply to the low-pressure side via the throttle 16 and the check valve 13 is blocked. Thus, no more oil can flow, so that the complete amount of oil of the feed pump 2 of the feed is available.
  • an additional shut-off valve 33 is provided in the swing oil line 19.
  • the shut-off valve 33 connects the drive cylinders 7 and 8, so that they can perform the conveying cycle described above. If the shut-off valve 33 is activated, the connection is blocked by the swing oil line 19, so that the pistons 70, 80 in the drive cylinders 7, 8 can no longer travel. Also, the oil balance due to the leakage in the drive cylinders 7,8 can no longer take place. As a result, pressure in the drive cylinders 7, 8 and in the main lines 17, 18 can be established by the main pump 1 in any arbitrary position of the pistons.
  • the pressure relief valve 52 which via the check valves 53 and 54 is connected to the pressure chambers between the drive cylinders 7,8 and the shut-off valve 33, prevents inadmissibly high pressures with the shut-off valve 33 closed, which could occur due to the pressure ratio in the drive cylinders 7,8.
  • an open primary circuit I for driving the concrete pump is provided in each case.
  • the main pump 44 sucks the oil directly from the tank 60 via the suction line 48.
  • a reversing valve 36 which optionally connects the main line 47 to the working line 17 '. or 18 'and the unconnected line 18' or 17 'connects to the tank 60.
  • the pistons 70,80 in the drive cylinders 7 and 8 then proceed in push-pull as described above.
  • the reversing valve 36 is actuated in the opposite direction.
  • the main pump 44 has an electrically proportional (EP) adjusting device 45.
  • valve 36 If, in the case of FIG. 7, hydraulic oil is to be supplied to the secondary circuit II (mast circuit), the valve 36 is not actuated. Thus, the connection of the main line 47 with the working lines 17 ', 18' is locked. If the directional control valve 28 is now activated, oil from the primary circuit I can be supplied to the secondary circuit II via the main line 47 and the line 29. Theoretically, the complete delivery volume of the main pump 44 can be fed to the secondary circuit II. In practice, the amount of oil supplied is adjusted via the electrically proportional quantity adjustment 45.
  • both the mast pump 22 with regulator 37 and the main pump 44 with regulator 46 are LS-controlled.
  • a directional control valve 38 is provided, via which either the load pressure of the drive cylinder 7, 8 reported via the line 41 or the load pressure of the mast control, which is reported via the line 42, is fed to the load-sensing regulator (LS) 46 of the main pump 44.
  • LS load-sensing regulator
  • the high pressure of the hydraulic pump compared with the load pressure and kept constant the difference of the two pressures via an adjusting.
  • the adjusting mechanism ensures that the oil quantity is independent of the load pressure.
  • the load pressure of the drive cylinder 7,8 is tapped via the shuttle valve 37 selectively from the working line 17 'or 18'. If the directional control valve 38 is not actuated, the load pressure of the drive cylinders 7 and 8 goes to the regulator 46 of the main pump 44. This regulates the pressure difference at the variable throttle 50, with which load pressure independent the speed of the pistons 70, 80 in the drive cylinders 7 and 8 can be adjusted. If hydraulic oil from the primary circuit I is to be fed to the secondary circuit II, the controller 46 of the main pump 44 is notified of the load pressure of the mast control by actuating the valve 38 via the line 42. This regulates load pressure independent, the pressure difference at the variable throttle 51, with which the amount of supplied hydraulic oil can be adjusted.
  • the invention relates to a hydraulic system, preferably for driving and operating a mobile slurry pump.
  • the hydraulic system comprises a primary hydraulic circuit I driving a first hydraulic consumer, which has a hydraulic drive unit comprising at least one motor-driven hydraulic pump 1, 2,44.
  • a secondary hydraulic circuit II controlling a second hydraulic consumer is provided which has a second, at least one further motor-driven hydraulic pump 22 comprising the hydraulic drive unit.
  • the hydraulic consumers 7, 8, 24 arranged in the primary circuit I and in the secondary circuit II are in a first operating state via their hydraulic drive units. Depending on each other with hydraulic oil from a common tank 60 acted upon.
  • a special feature of the invention is that in a second operating state at standstill of the first consumer 7.8 at least a portion of the hydraulic oil from the primary circuit I in the secondary circuit II is fed to drive the second load 24.
  • first consumer 7,8 is designed as a hydraulic drive mechanism of the slurry pump
  • second consumer 24 is designed as a drive and control mechanism of a plurality of Mastarmen distributors lermasts.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'invention concerne un système hydraulique destiné de préférence à commander et à actionner une pompe à matières épaisses mobile. Le système hydraulique comprend un circuit primaire commandant un premier consommateur hydraulique et comprenant un organe d'entraînement hydraulique doté d'au moins une pompe hydraulique (1, 2, 44) entraînée par un moteur. Le système comprend également un circuit secondaire II commandant un deuxième consommateur hydraulique et comportant un deuxième organe d'entraînement hydraulique doté au moins d'une autre pompe hydraulique (22) entraînée par un moteur. Dans un premier état de fonctionnement, les consommateurs hydrauliques (7, 8; 24) disposés dans le circuit primaire et dans le circuit secondaire II peuvent être alimentés en huile hydraulique à partir d'un réservoir (60) commun indépendamment l'un de l'autre et par l'intermédiaire de leurs organes d'entraînement hydrauliques. Dans un deuxième état de fonctionnement, une partie de l'huile hydraulique est amenée du circuit primaire I au circuit secondaire II pour commander le deuxième consommateur (24).
EP13711642.2A 2012-05-31 2013-03-20 Méthode pour l'opération d'un système hydraulique Active EP2855945B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012209142A DE102012209142A1 (de) 2012-05-31 2012-05-31 Hydrauliksystem
PCT/EP2013/055747 WO2013178373A1 (fr) 2012-05-31 2013-03-20 Système hydraulique

Publications (3)

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EP2855945A1 true EP2855945A1 (fr) 2015-04-08
EP2855945B1 EP2855945B1 (fr) 2018-03-14
EP2855945B2 EP2855945B2 (fr) 2023-11-01

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EP13711642.2A Active EP2855945B2 (fr) 2012-05-31 2013-03-20 Méthode pour l'opération d'un système hydraulique

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US (1) US10273984B2 (fr)
EP (1) EP2855945B2 (fr)
JP (1) JP6214639B2 (fr)
KR (2) KR20150018768A (fr)
CN (1) CN104508307B (fr)
DE (1) DE102012209142A1 (fr)
TR (1) TR201806948T4 (fr)
WO (1) WO2013178373A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018209513B3 (de) 2018-06-14 2019-10-17 Putzmeister Engineering Gmbh Hydraulikantriebssystem für eine Baustoffpumpe und Baustoffpumpe

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014117327A1 (de) * 2014-11-26 2016-06-02 Robert Bosch Automotive Steering Gmbh Lenksystem für ein Kraftfahrzeug und Verfahren zum Entlüften eines Lenksystems für ein Kraftfahrzeug
CN104832476B (zh) * 2014-12-19 2017-08-04 北汽福田汽车股份有限公司 泵送液压系统
CN104533860A (zh) * 2014-12-26 2015-04-22 三一汽车制造有限公司 一种泵送机构补油控制系统和混凝土泵送机械
DE102015224076A1 (de) * 2015-12-02 2017-06-08 Schaeffler Technologies AG & Co. KG Nachlaufeinrichtung etwa eines Kupplungsgeberzylinders mit entspannter Dichtung in Parkposition
DE102016106643A1 (de) 2016-04-11 2017-10-12 Schwing Gmbh Elektrohydraulischer Steuerkreis für einen Großmanipulator
JP2018105259A (ja) * 2016-12-27 2018-07-05 極東開発工業株式会社 生コンクリート圧送ポンプ
DE102017004634A1 (de) 2017-05-15 2018-11-15 Hydac Systems & Services Gmbh Steuervorrichtung zum Versorgen mindestens eines hydraulischen Verbrauchers
NL2019357B1 (en) * 2017-07-27 2019-02-18 Weir Minerals Netherlands Bv Pump system for handling a slurry medium
CN108035921A (zh) * 2017-11-29 2018-05-15 太原科技大学 一种泵控单出杆活塞缸的液压回路
DE102018208263A1 (de) * 2018-05-25 2019-11-28 Putzmeister Engineering Gmbh Vorrichtung zur Förderung von Dickstoff
DE102018130480A1 (de) * 2018-11-30 2020-06-04 Liebherr-Betonpumpen Gmbh Zweizylinder-Dickstoffpumpe
DE102020200261A1 (de) * 2020-01-10 2021-07-15 Putzmeister Engineering Gmbh Verfahren zum Betreiben einer Dickstoffpumpe und Dickstoffpumpe

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1952034A1 (de) 1969-10-15 1971-04-22 Linde Ag Steuereinrichtung fuer eine hydraulische Anlage und Ventil hierzu
US4073141A (en) 1977-03-17 1978-02-14 Caterpillar Tractor Co. Fluid control system with priority flow
US4369625A (en) * 1979-06-27 1983-01-25 Hitachi Construction Machinery Co., Ltd. Drive system for construction machinery and method of controlling hydraulic circuit means thereof
DE3243738A1 (de) 1982-11-26 1984-05-30 Karl Dipl.-Ing. 7000 Stuttgart Schlecht Hydro-umsteuerung bei zweizylinder-kolbenpumpe
DE3703297A1 (de) 1987-02-04 1988-08-18 Fendt & Co Xaver Hydraulikanlage zur betaetigung von arbeitsgeraeten an fahrzeugen
JPH04194405A (ja) * 1990-11-27 1992-07-14 Komatsu Ltd ロードセンシングシステムにおける複数ポンプの分・合流切換装置
DE4100988C2 (de) 1991-01-15 2001-05-10 Linde Ag Hydraulisches Antriebssystem
JP3143773B2 (ja) * 1995-06-29 2001-03-07 極東開発工業株式会社 コンクリート圧送装置
DE19542258A1 (de) * 1995-11-13 1997-05-15 Putzmeister Maschf Verfahren und Vorrichtung zur Steuerung einer Zweizylinder-Dickstoffpumpe
DE29607989U1 (de) * 1996-05-03 1996-07-25 Putzmeister Maschf Zweizylinder-Dickstoffpumpe
DE10036202A1 (de) * 2000-07-24 2002-02-07 Putzmeister Ag Dickstoffpumpe
DE10150467A1 (de) * 2001-10-16 2003-04-17 Putzmeister Ag Dickstoffpumpe mit Fördermengenregelung
DE10238614A1 (de) * 2002-08-17 2004-02-26 Claas Selbstfahrende Erntemaschinen Gmbh Ölvolumenausgleich im Ölkreislauf des hydraulischen Fahrantriebes einer selbstfahrenden Arbeitsmaschine
JP2005076781A (ja) * 2003-09-01 2005-03-24 Shin Caterpillar Mitsubishi Ltd 作業機械の駆動装置
DE102004015419A1 (de) * 2004-03-26 2005-10-13 Putzmeister Ag Vorrichtung und Verfahren zur Steuerung einer Dickstoffpumpe
KR100606203B1 (ko) * 2004-04-19 2006-07-31 주식회사 디앤에스 펌프카의 콘크리트 압송변환시스템
DE102005008217A1 (de) * 2005-02-22 2006-08-31 Putzmeister Ag Hydraulikantrieb, insbesondere für Zweizylinder-Dickstoffpumpen
DE102005035981A1 (de) * 2005-07-28 2007-02-01 Putzmeister Ag Hydraulische Schaltungsanordnung, insbesondere für den Antrieb von Betonverteilermasten
US7905088B2 (en) * 2006-11-14 2011-03-15 Incova Technologies, Inc. Energy recovery and reuse techniques for a hydraulic system
KR100900436B1 (ko) * 2007-05-21 2009-06-01 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 무한궤도형 중장비의 주행장치
DE102009029840A1 (de) 2009-06-22 2011-01-27 Liebherr-Werk Nenzing Gmbh Hydrauliksystem
CN101824915B (zh) 2010-03-26 2011-09-21 长沙中联重工科技发展股份有限公司 具有臂架应急驱动功能的混凝土布料设备
CN202001241U (zh) 2011-04-08 2011-10-05 徐工集团工程机械股份有限公司建设机械分公司 一种混凝土泵送设备及其混凝土输送液压系统
CN102400968B (zh) 2011-11-18 2014-10-15 三一汽车制造有限公司 一种液压阀、液压系统及混凝土泵送设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018209513B3 (de) 2018-06-14 2019-10-17 Putzmeister Engineering Gmbh Hydraulikantriebssystem für eine Baustoffpumpe und Baustoffpumpe

Also Published As

Publication number Publication date
EP2855945B2 (fr) 2023-11-01
KR102166576B1 (ko) 2020-10-19
US20150096290A1 (en) 2015-04-09
JP6214639B2 (ja) 2017-10-18
WO2013178373A1 (fr) 2013-12-05
US10273984B2 (en) 2019-04-30
CN104508307B (zh) 2016-12-28
DE102012209142A1 (de) 2013-12-05
EP2855945B1 (fr) 2018-03-14
TR201806948T4 (tr) 2018-06-21
JP2015518945A (ja) 2015-07-06
KR20200099214A (ko) 2020-08-21
KR20150018768A (ko) 2015-02-24
CN104508307A (zh) 2015-04-08

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