EP2029815B1 - Procede d'alignement precis d'un equipement de travail monte de maniere a pouvoir basculer sur un chevalet de levage levable ou abaissable d'une machine de travail - Google Patents

Procede d'alignement precis d'un equipement de travail monte de maniere a pouvoir basculer sur un chevalet de levage levable ou abaissable d'une machine de travail Download PDF

Info

Publication number
EP2029815B1
EP2029815B1 EP07724652.8A EP07724652A EP2029815B1 EP 2029815 B1 EP2029815 B1 EP 2029815B1 EP 07724652 A EP07724652 A EP 07724652A EP 2029815 B1 EP2029815 B1 EP 2029815B1
Authority
EP
European Patent Office
Prior art keywords
tilting cylinder
hydraulic
cylinder
hydraulic pump
working
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
EP07724652.8A
Other languages
German (de)
English (en)
Other versions
EP2029815A1 (fr
Inventor
Gustav Leidinger
Jörg Hermanns
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.)
CNH Industrial Baumaschinen GmbH
Original Assignee
CNH Industrial Baumaschinen 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 CNH Industrial Baumaschinen GmbH filed Critical CNH Industrial Baumaschinen GmbH
Publication of EP2029815A1 publication Critical patent/EP2029815A1/fr
Application granted granted Critical
Publication of EP2029815B1 publication Critical patent/EP2029815B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E02F3/434—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like providing automatic sequences of movements, e.g. automatic dumping or loading, automatic return-to-dig
    • 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
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/2041—Automatic repositioning of implements, i.e. memorising determined positions of the implement
    • 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
    • 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
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
    • 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
    • F15B2211/20507—Type of prime mover
    • F15B2211/20523—Internal combustion engine
    • 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
    • F15B2211/20584—Combinations of pumps with high and low 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
    • F15B2211/265—Control of multiple pressure sources
    • 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
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F15B2211/3133—Regenerative position connecting the working ports or connecting the working ports to the pump, e.g. for high-speed approach stroke
    • 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
    • F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
    • 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

Definitions

  • the invention relates to a method for the positional alignment of tiltable arranged on a lifting and lowering mast of a working machine working equipment, wherein the working equipment is moved by means of a tilt cylinder relative to the mast, wherein the working equipment is connected via a Gelenkhebelmechanimus with the piston rod of the tilt cylinder, said the tilting cylinder is supplied with hydraulic oil of a hydraulic pump for the working hydraulics via a directly actuated control slide, and secondary consumers of the working machine are supplied with hydraulic oil by at least one further hydraulic pump.
  • the invention relates to a work machine with a liftable and lowerable mast and with respect to the mast tiltable arranged by a tilting work equipment, the working equipment is connected via a toggle mechanism with the piston rod of the tilting cylinder and the tilting cylinder via a directly operated spool with a hydraulic pump for the working hydraulics is connected, and wherein at least one further hydraulic pump is provided, wherein the further hydraulic pump is connected via a switching valve simultaneously with the two hydraulic ports of the tilting cylinder, wherein the switching valve is actuated via a control device.
  • Mobile machines especially wheel loaders, have work equipment, which are mounted on the frame of the machine by means of a lifting and lowering mast.
  • the work equipment (especially when working with a bucket) after emptying the same in a raised position of the mast after lowering it automatically returns to a position at ground support, which without readjustment by the driver continued work, ie a new recording of material in favorable angular position of Shovel bottom, so approximately parallel to the ground, allows.
  • a work machine with the features of the preamble of claim 3 is made US-A-535620 known.
  • an additional hydraulic pump is provided, which alone serves to actuate the tilt cylinder, which is correspondingly expensive.
  • the object of the invention is to provide as simple as possible, possibly also retrofitted Rag constitutionalally designed for the tilting work equipment a working machine with a directly operated spool valve for the tilting cylinder.
  • This object is achieved in a method of the type described in the present invention, that after actuation of a trigger element by the driver, the two hydraulic connections of the cylinder designed as a differential cylinder tilting cylinder via a switch actuated by a control valve are simultaneously connected to the hydraulic pump for the auxiliary consumers and thereby the tilt cylinder is moved in the direction of the neutral position of the working equipment, wherein the position of the tilting cylinder is determined and monitored by the control device of the changeover valve, and that the control device of the changeover valve on reaching the predetermined neutral position of the tilting cylinder switches the changeover valve in a position in which the two hydraulic connections of the Tilting cylinders are shut off by the hydraulic pump for the auxiliary consumers.
  • the flow of the pump is used for the working hydraulics, but the flow rate of the pump for the secondary consumers.
  • This can e.g. either be removed in front of the hydraulic motor for the fan of the oil cooler, wherein during the short period of remindkippvorganges then the fan in the usually existing freewheeling circuit runs and experiences only a slight speed drop, or even after the fan.
  • the fan motor is then acted upon at its outlet opening with the pressure required for the tipping back of the blade, which, however, can be absorbed by the fan motor.
  • This switching valve has a circuit diagram that when switching on the feedback mechanism via the trigger element (switch) directs the flow of oil to the two ports of the tilt cylinder so that it is acted upon by the principle of a differential cylinder, ie the extension speed of the piston rod is released from that of her , determined by the flow rate of the pump to be filled volume.
  • the piston rod In the usual area ratio of piston rod to cylinder of about 1: 4 corresponding to a relative to the cylinder diameter about half the piston rod diameter, the piston rod is extended at a certain flow four times as fast as in the application of the cylinder only on the piston side. Since the flow rate of the hydraulic pump used for the secondary consumers is only about half as large as the flow rate of the hydraulic pump for the working hydraulics, thus the piston rod is extended at about twice the speed compared to the use of the pump for the working hydraulics. Thus, even after triggering of the automatic feedback system in the case of lifting frame positions below the maximum height, it is still achieved that the working equipment (for example a blade) already strikes the ground in its ground-parallel end position. Especially with wheel loaders of the aforementioned weight class (up to about 6 t), this is for a speedy workflow of great advantage in which often material is poured only on a heap, the lifting frame does not need to be raised to its uppermost position.
  • the position of the tilting cylinder is determined and monitored by the control device of the changeover valve and the control device of the changeover valve switches on reaching the predetermined neutral position of the tilting cylinder, the changeover valve in a position in which the two hydraulic connections of the tilting cylinder are shut off by the hydraulic pump for the auxiliary consumers. In this way, an exact alignment of the work equipment is ensured in the predetermined neutral position.
  • a 4/2-way valve is preferably used.
  • the invention also provides a working machine with the features of claim 3.
  • a check valve is provided in the hydraulic line between the switching valve and the hydraulic port on the Piston rod side of the tilt cylinder. This check valve ensures proper operation even if the driver at the same time actuates the control slide in the direction of tilting when the automatic return mechanism.
  • the pump can be used for the auxiliary consumers with a smaller displacement than the pump for the working hydraulics to achieve compared to previous systems still superior and meet all operating requirements increasing the adjustment speed.
  • all components forming the system can be kept small due to the lower flow rate.
  • the desired end position of the working equipment e.g., bucket
  • the shutdown takes place only via a small valve size solenoid valve.
  • Such solenoid valves have shutdown times of less than 50 ms.
  • the end position of the blade from the currently prevailing engine speed greatly influenced, since the actuating time of a here also existing solenoid valve still added to the tilting piston, which a Is multiple of that of the solenoid valve. To compensate for this, additional devices are required in known systems.
  • the tilting cylinder 7 has a piston rod 8 and a piston 9 and is opposite to the piston rod 8 End in a pivot point 10 also hinged to the frame of the wheel loader.
  • a support rod 11 is fastened which carries at its free end a control lug 12 which forms part of a tilt cylinder position determination device.
  • a component designed as a proximity switch 13 in this example is arranged as a second part of the tilting cylinder position determining device, which is in operative connection with an electronic control device 15 via an electrical signal line 14, the function of which will be explained in more detail below.
  • the tilt cylinder position determination device can also be realized in other ways. It is essential that it is able to detect that position of the tilt cylinder 8, which is the predetermined in Fig. 1 shown neutral position of the blade 4 relative to the ground 16 corresponds.
  • the working machine in this case the wheel loader, has a drive motor, for example a diesel engine 17, which drives three hydraulic units, namely a preferably adjustable hydrostatic drive 18, a hydraulic pump 19 for the working hydraulics of the wheel loader and at least one further hydraulic pump 20 for secondary consumers.
  • a drive motor for example a diesel engine 17
  • three hydraulic units namely a preferably adjustable hydrostatic drive 18, a hydraulic pump 19 for the working hydraulics of the wheel loader and at least one further hydraulic pump 20 for secondary consumers.
  • hydraulic oil is conveyed from the hydraulic aggregates 18, 19, 20 out of a tank, generally designated 21, or conveyed back into it.
  • the hydraulic pump 19 for the working hydraulics is used inter alia for a normal operation of the blade 4 by the driver via the tilting cylinder 7.
  • the pump 19 is connected via a hydraulic line 22 to a control slide 23 which can be actuated directly by the driver by means of control levers 24 is.
  • the spool valve 23 is connected via a hydraulic line 25 to the piston side 26 and via a hydraulic line 27 to the annular space 28 of the tilting cylinder 7. Further, a line 29 is provided to the tank 21.
  • the hydraulic pump 20 for the auxiliary consumers is used, for example, to supply or drive a fan motor 30 of a fan 31.
  • the hydraulic pump 20 is connected via two hydraulic lines 32 and 33 to the fan motor 30, wherein between the two hydraulic lines 32 and 33, an electromagnetic 4/2 -Wegeventil 34 is arranged.
  • an electromagnetic 4/2 -Wegeventil 34 is arranged between the two hydraulic lines 32 and 33.
  • the fan motor 30 is connected to the hydraulic pump 20.
  • a pressure relief valve 42 secures the hydraulic pump 20 from.
  • the solenoid valve 34 also has two ports 35, 36, wherein the terminal 35, a hydraulic line 37 is connected, which is in communication with the annular space 28 of the tilting cylinder 7, wherein in this line, a check valve 38 is arranged. To the terminal 36, a hydraulic line 39 is connected, which is in communication with the piston side 26 of the tilting cylinder 7.
  • the electromagnetic 4/2-way valve 34 is connected via an electrical signal line 40 to the control device 15, which in turn is in turn connected to a trigger element 41 designed as a switch.
  • the driver wants to trigger the return mechanism, he actuates the switch or the trigger element 41, whereby the control device 15, the 4/2-way valve 34 in the switching position according to Fig. 1 3 brings, in which both the oil flow of the hydraulic pump 20 and the displaced from the annular space 28 of the tilting cylinder 7, via the terminal 35 flowing oil flow together via the port 36 of Piston side 26 of the tilting cylinder 7 are supplied, so that the tilting cylinder 7 is acted upon by the principle of a differential cylinder, ie the extension speed of the piston rod 8 is determined by the released by the flow of the hydraulic pump 20 to be filled volume. In this position of the solenoid valve 34, the fan motor 30 is decoupled from the hydraulic pump 20.
  • the piston rod 8 of the tilting cylinder 7 is extended as long as the hydraulic pump 20 and thus guided the blade 4 in neutral position until it is determined by the Kippzylinderpositionsbeticians owned 12, 13 that the predetermined desired maximum extension position of the piston rod 8 and thus the desired neutral position of the blade. 4 is reached.
  • a corresponding signal is output to the control device 15, which the 4/2-way valve 34 in the in Fig. 2 shown rest position brings, so that a further oil flow to the tilting cylinder 7 is excluded from the hydraulic pump 20.
  • the automatic feedback system is not switched on.
  • the solenoid valve 34 switches the flow rate of the hydraulic pump 20 to free passage to the secondary consumer (s) (eg, fan motor 30).
  • the terminals 35, 36 of the tilt cylinder 7 are locked by the solenoid valve 34, so that upon actuation of the tilt cylinder 7 via the spool 23 by the driver (via the control lever 24) no mutual interference is given.
  • the tilting cylinder 7 is additionally applied in the direction of "tilting" by the driver during the automatic remindkippvorganges.
  • the piston rod 8 continues to drive, however, the differential action of the tilting cylinder 7 is repealed, since the annular space 28 of the tilting cylinder 7 is connected via the spool 23 to the tank 21.
  • the check valve 38 in the hydraulic line 37 prevents the flow rates of the two hydraulic pumps 19 and 20 can not flow to the annulus 28 of the tilt cylinder 7, but as intended only to the piston side 26.
  • the displaced from the annulus 28 oil flow is directly into the tank 21st directed.
  • It can be a hydraulic holding force of the tilt cylinder 7 in the size of the product of the piston surface and the pressure of Adjust the relief valve 42 so that the external load can be held in position.
  • the hydraulic pump 20 promotes the secondary consumers via the pressure relief valve 42 in the tank. If the driver then actuates the function "tilting" via the spool valve 23, the annular space 28 of the tilting cylinder 7 is released via the return passage in the spool valve 23 and the piston rod 8 extends in the desired direction.

Landscapes

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

Claims (5)

  1. Procédé d'orientation conforme d'un équipement de travail (4) agencé basculant sur une structure de levage (1) pouvant être montée et descendue d'une machine de travail, dans lequel l'équipement de travail (4) est déplacé au moyen d'un vérin de basculement (7) par rapport à la structure de levage (1), dans lequel l'équipement de travail (4) est relié à la tige de piston (8) du vérin de basculement (7) par l'intermédiaire d'un mécanisme de levage articulé (5, 6), dans lequel le vérin de basculement (7) est alimenté en huile hydraulique d'une pompe hydraulique (19) destinée à l'hydraulique de travail par l'intermédiaire d'un tiroir de distribution (23) pouvant être actionné directement et dans lequel des consommateurs auxiliaires de la machine sont alimentés en huile hydraulique par l'intermédiaire d'au moins une autre pompe hydraulique (20),
    dans lequel, après l'actionnement d'un élément de déclenchement (41) par le conducteur, les deux raccords hydrauliques (25, 27) du vérin de basculement (7) réalisé sous forme de vérin différentiel sont reliés simultanément à la pompe hydraulique (20) destinée aux consommateurs auxiliaires par l'intermédiaire d'une soupape d'inversion (34) actionnable par un dispositif de commande (15) et le vérin de basculement (7) est ainsi déplacé en direction de la position neutre de l'équipement de travail (4), dans lequel la position du vérin de basculement (7) est déterminée et est surveillée par le dispositif de commande (15) de la soupape d'inversion (34), et dans lequel, lorsque la position neutre prédéterminée du vérin de basculement (7) est atteinte, le dispositif de commande (15) de la soupape d'inversion (34) fait passer la soupape d'inversion (34) dans une position dans laquelle les deux raccords hydrauliques (25, 27) du vérin de basculement (7) sont coupés de la pompe hydraulique (20) destinée aux consommateurs auxiliaires.
  2. Procédé selon la revendication 1,
    caractérisé en ce qu'une soupape à 4/2 voies est utilisée comme soupape d'inversion (34).
  3. Machine avec une structure de levage (1) pouvant être montée et descendue et avec un équipement de travail (4) agencé basculant par rapport à la structure de levage (1) au moyen d'un vérin de basculement (7), dans laquelle l'équipement de travail (4) est relié à la tige de piston (8) du vérin de basculement (7) par l'intermédiaire d'un mécanisme de levage articulé (5, 6) et le vérin de basculement (7) est relié à une pompe hydraulique (18) destinée à l'hydraulique de travail par l'intermédiaire d'un tiroir de distribution (23) pouvant être actionné directement et dans laquelle au moins une autre pompe hydraulique (20) est prévue, dans laquelle l'autre pompe hydraulique (20) est reliée aux deux raccords hydrauliques (25, 27) du vérin de basculement (7) par l'intermédiaire d'une soupape d'inversion (34), dans laquelle la soupape d'inversion (34) est actionnable par un élément de déclenchement (41) par l'intermédiaire d'un dispositif de commande (15), dans laquelle le vérin de basculement (7) est réalisé sous forme de vérin différentiel,
    caractérisée en ce que l'autre pompe hydraulique (20) est prévue pour des consommateurs auxiliaires et en ce que l'autre pompe hydraulique (20) est reliée simultanément aux deux raccords hydrauliques (25, 27) du vérin de basculement (7) par l'intermédiaire de la soupape d'inversion (34),
    dans laquelle le vérin de basculement (7) est muni d'un dispositif de détermination (12, 13) qui est destiné à déterminer la position de vérin de basculement et qui est relié au dispositif de commande (15).
  4. Machine selon la revendication 3,
    caractérisé en ce que la soupape d'inversion (34) est réalisée sous forme de soupape à 4/2 voies.
  5. Machine selon la revendication 3 ou 4,
    caractérisée en ce qu'une soupape de non-retour (38) est prévue dans la conduite hydraulique (37) entre la soupape d'inversion (34) et le raccord hydraulique (27) du côté (28) de la tige de piston du vérin de basculement (7).
EP07724652.8A 2006-05-26 2007-04-27 Procede d'alignement precis d'un equipement de travail monte de maniere a pouvoir basculer sur un chevalet de levage levable ou abaissable d'une machine de travail Active EP2029815B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006024731A DE102006024731B3 (de) 2006-05-26 2006-05-26 Verfahren zur lagegerechten Ausrichtung einer an einem heb- und senkbaren Hubgerüst einer Arbeitsmaschine kippbar angeordeten Arbeitausrüstung sowie Arbeitsmaschine
PCT/EP2007/003722 WO2007137662A1 (fr) 2006-05-26 2007-04-27 ProcÉdÉ d'alignement prÉcis d'un Équipement de travail montÉ de maniÈre À pouvoir basculer sur un chevalet de levage levable ou abaissable d'une machine de travail

Publications (2)

Publication Number Publication Date
EP2029815A1 EP2029815A1 (fr) 2009-03-04
EP2029815B1 true EP2029815B1 (fr) 2018-11-21

Family

ID=38261455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724652.8A Active EP2029815B1 (fr) 2006-05-26 2007-04-27 Procede d'alignement precis d'un equipement de travail monte de maniere a pouvoir basculer sur un chevalet de levage levable ou abaissable d'une machine de travail

Country Status (4)

Country Link
US (1) US8146356B2 (fr)
EP (1) EP2029815B1 (fr)
DE (1) DE102006024731B3 (fr)
WO (1) WO2007137662A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023202499B3 (de) 2023-03-21 2024-06-06 Zf Friedrichshafen Ag Verfahren zum Steuern eines Radladers, Steuerung, Antriebsanordnung und Radlader

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5027705B2 (ja) 2008-03-25 2012-09-19 株式会社小松製作所 作動油供給装置および建設機械
FR2938561A1 (fr) * 2008-11-20 2010-05-21 Mailleux Dispositif de remise a niveau automatique de l'outil d'un chargeur hydraulique monte sur un tracteur
EP3334672B1 (fr) 2015-08-10 2023-10-04 Superior Industries, Inc. Systèmes et procédés de mise à niveau de convoyeur
CN106088187A (zh) * 2016-06-06 2016-11-09 郑州市小石头信息技术有限公司 铲车物料装载智能识别系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811587A (en) * 1972-07-17 1974-05-21 Case Co J I Hydraulic leveling circuit for implement
JPH0791842B2 (ja) * 1988-01-18 1995-10-09 株式会社小松製作所 バケットレベラ装置
JPH0639317B2 (ja) * 1989-09-09 1994-05-25 株式会社神戸製鋼所 移動式クレーンの変位抑制機構
DE4437300C2 (de) * 1994-07-13 1996-12-05 Orenstein & Koppel Ag Verfahren und Einrichtung zur lagegerechten Positionierung der an einem abwärts sich bewegenden Hubgerüst einer mobilen Arbeitsmaschine kippbar angeordneten Arbeitsausrüstung
WO1996002707A1 (fr) * 1994-07-13 1996-02-01 O & K Orenstein & Koppel Ag Procede et dispositif de positionnement precis d'accessoires basculants montes sur des chassis de levage a mouvement descendant d'engins de chantier
WO1996029478A1 (fr) * 1995-03-22 1996-09-26 Komatsu Ltd. Dispositif de mise a niveau pour benne de vehicules industriels
US6120237A (en) * 1998-08-25 2000-09-19 Rockland Inc. Attachment for groundworking and material handling machines and a strut assembly therefor
DE20116947U1 (de) * 2001-10-12 2002-04-04 Weidemann GmbH & Co. KG, 34519 Diemelsee Schnellauskippventil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023202499B3 (de) 2023-03-21 2024-06-06 Zf Friedrichshafen Ag Verfahren zum Steuern eines Radladers, Steuerung, Antriebsanordnung und Radlader

Also Published As

Publication number Publication date
WO2007137662A1 (fr) 2007-12-06
DE102006024731B3 (de) 2007-08-16
EP2029815A1 (fr) 2009-03-04
US8146356B2 (en) 2012-04-03
US20090107133A1 (en) 2009-04-30

Similar Documents

Publication Publication Date Title
EP1752587B1 (fr) Agencement hydraulique
DE102004012382B4 (de) Hydraulische Anordnung
EP2171285B1 (fr) Dispositif de commande hydraulique
EP1743981A1 (fr) Agencement hydraulique
DE202007005232U1 (de) Kipplaster
DE19532769A1 (de) Fluiddrucksteuerungssystem für Hydraulikbagger
EP2029815B1 (fr) Procede d'alignement precis d'un equipement de travail monte de maniere a pouvoir basculer sur un chevalet de levage levable ou abaissable d'une machine de travail
DE10393484B4 (de) Verfahren und Vorrichtung zur Steuerung einer Hydraulikpumpe für ein Arbeitsgerät eines Arbeitsfahrzeuges
EP1897847A2 (fr) Appareil de chargement
DE112017003054T5 (de) Hydraulisches ansteuersystem
EP1762535A2 (fr) Engin roulant du type muni d'un bras et procédé pour celui-ci
DE2164628A1 (de) Ueberlastabschalteinrichtung fuer hintereinandergekoppelte hydraulische hubbzw. verstellmechanismen, insbesondere bei hydraulischen ladekranen
DE2411051C2 (de) Bagger, wie Hochlöffelbagger, Schaufellader oder dgl.
DE2533673C2 (de) Hydraulisches Steuersystem
EP1507087A2 (fr) Dispositif de commande hydraulique pour une machine de travail mobile
DE2517810A1 (de) Fahrzeug
DE10063610B4 (de) Steuereinrichtung zur Steuerung einer hydraulischen Schwenkantriebsvorrichtung
EP3816095A1 (fr) Machine motrice dotée d'un cadre et d'une flèche pivotante
EP1576241B1 (fr) Dispositif de commande pour engin de chantier comportant une pelle fixee a un bras
DE3508691C1 (de) Hydraulisches Erdbaufahrzeug mit einem schwenkbaren Ausleger
DE102015118666A1 (de) Hydraulischer Neigeantrieb eines Lastaufnahmemittels eines Flurförderzeugs
EP3564448B1 (fr) Véhicule utilitaire à chargement avant
DE19547696C1 (de) Verfahren und Einrichtung zur lastabhängigen automatischen Umschaltung mindestens eines hydraulischen Schwenkmotors einer mobilen Bau- oder Arbeitsmaschine
DE4437300C2 (de) Verfahren und Einrichtung zur lagegerechten Positionierung der an einem abwärts sich bewegenden Hubgerüst einer mobilen Arbeitsmaschine kippbar angeordneten Arbeitsausrüstung
DE112016006779T5 (de) Arbeitsfahrzeug und Hydraulik-Steuerungsverfahren

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20081229

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CNH INDUSTRIAL BAUMASCHINEN GMBH

17Q First examination report despatched

Effective date: 20160108

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502007016504

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: E02F0003430000

Ipc: F15B0011024000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: E02F 3/43 20060101ALI20180626BHEP

Ipc: E02F 9/22 20060101ALI20180626BHEP

Ipc: F15B 11/024 20060101AFI20180626BHEP

Ipc: F15B 15/28 20060101ALI20180626BHEP

Ipc: F15B 11/17 20060101ALI20180626BHEP

Ipc: E02F 9/20 20060101ALI20180626BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180802

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007016504

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1067881

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181215

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20181121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190221

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190321

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190321

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190222

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007016504

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190427

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190427

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20200420

Year of fee payment: 14

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1067881

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190427

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20200424

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190427

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502007016504

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20070427

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181121

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210430

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210427

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230426

Year of fee payment: 17