EP1193211A3 - Hydraulische Hubvorrichtung - Google Patents

Hydraulische Hubvorrichtung Download PDF

Info

Publication number
EP1193211A3
EP1193211A3 EP01122968A EP01122968A EP1193211A3 EP 1193211 A3 EP1193211 A3 EP 1193211A3 EP 01122968 A EP01122968 A EP 01122968A EP 01122968 A EP01122968 A EP 01122968A EP 1193211 A3 EP1193211 A3 EP 1193211A3
Authority
EP
European Patent Office
Prior art keywords
lifting device
lowering
hydraulic lifting
valve
pressurized medium
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
EP01122968A
Other languages
English (en)
French (fr)
Other versions
EP1193211B1 (de
EP1193211A2 (de
Inventor
Ralf Mebert
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.)
Still Wagner GmbH and Co KG
Original Assignee
Still Wagner GmbH and Co KG
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 Still Wagner GmbH and Co KG filed Critical Still Wagner GmbH and Co KG
Publication of EP1193211A2 publication Critical patent/EP1193211A2/de
Publication of EP1193211A3 publication Critical patent/EP1193211A3/de
Application granted granted Critical
Publication of EP1193211B1 publication Critical patent/EP1193211B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation means
    • 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
    • F15B2211/40—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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40553—Flow control characterised by the type of flow control means or valve with pressure compensating valves
    • F15B2211/40569—Flow control characterised by the type of flow control means or valve with pressure compensating valves the pressure compensating valve arranged downstream of the flow control means
    • 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
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source 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
    • F15B2211/415—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
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in 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
    • F15B2211/46—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
    • F15B2211/70—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
    • F15B2211/7052—Single-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
    • F15B2211/75—Control of speed of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

Die Erfindung betrifft eine hydraulische Hubvorrichtung (1) für eine batterie-elektrisch betriebene Arbeitsmaschine, insbesondere Flurförderzeug, wobei die Hubvorrichtung (1) ein vertikal bewegbares Lastaufnahmemittel aufweist, das mit zumindest einem hydraulischen Hubzylinder (7) in Wirkverbindung steht, wobei der Hubzylinder (7) mittels einer Druckmittelleitung (6) mit einem im Hebenbetrieb als Pumpe und im Senkenbetrieb als Motor arbeitenden hydraulischen Aggregat (2) in Verbindung steht, das mit einer im Hebenbetrieb als Motor und im Senkenbetrieb als Generator arbeitenden elektrischen Maschine (3) in trieblicher Verbindung steht. Die Aufgabe, im Feinsteuerbereich bei geringen Senkengeschwindigkeiten ein genaue Einstellung der Senkengeschwindigkeit und bei hohen Senkengeschwindigkeiten eine effektive Energierückgewinnung zu ermöglichen, wird erfindungsgemäß dadurch gelöst, dass von der Druckmittelleitung (6) eine zu einem Behälter (5) geführte Zweigleitung (15) abzweigt, in der ein Senkenventil (16) zur Steuerung der Senkenbewegung im Feinsteuerbereich angeordnet ist. Das Senkenventil (16) ist als Proportionalventil ausgebildet und im Feinsteuerbereich in eine Durchflussstellung (16b) beaufschlagbar. Bei Erreichen einer Senkgrenzgeschwindigkeit ist ein Lasthalteventil (10) in eine Öffnungsstellung aufsteuerbar und die elektrische Maschine (3) im Generatorbetrieb betreibbar.
EP01122968A 2000-09-28 2001-09-25 Hydraulische Hubvorrichtung Expired - Lifetime EP1193211B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10048215A DE10048215A1 (de) 2000-09-28 2000-09-28 Hydraulische Hubvorrichtung
DE10048215 2000-09-28

Publications (3)

Publication Number Publication Date
EP1193211A2 EP1193211A2 (de) 2002-04-03
EP1193211A3 true EP1193211A3 (de) 2005-12-14
EP1193211B1 EP1193211B1 (de) 2007-01-24

Family

ID=7658041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122968A Expired - Lifetime EP1193211B1 (de) 2000-09-28 2001-09-25 Hydraulische Hubvorrichtung

Country Status (3)

Country Link
EP (1) EP1193211B1 (de)
AT (1) ATE352515T1 (de)
DE (2) DE10048215A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10154449A1 (de) * 2001-11-06 2003-05-15 Dambach Lagersysteme Gmbh & Co Hydraulische Hubvorrichtung insbesondere für batteriegetriebene Flurförderzeuge und Verfahren zu deren Steuerung
SE525159C2 (sv) * 2002-06-05 2004-12-14 Bt Ind Ab Förfarande för att styra sänkningsrörelsen för en trucks luftcylinder
FI123664B (fi) * 2008-02-29 2013-09-13 Metso Paper Inc Paperi- tai kartonkikoneessa käytetyn laitteiston kuormitussylinterin hydraulijärjestelmä sekä menetelmä kuormitussylinterin paineistamiseksi hydraulijärjestelmässä
RU2016136705A (ru) 2011-02-16 2018-12-11 Краун Эквайпмент Корпорейшн Погрузочно-разгрузочное транспортное средство, рассчитывающее скорость подвижного узла по скорости двигателя механизма подъёма
US9360023B2 (en) * 2013-03-14 2016-06-07 The Raymond Corporation Hydraulic regeneration system and method for a material handling vehicle
US9975426B2 (en) 2013-06-26 2018-05-22 Parker-Hannifin Manufacturing Limited Energy efficient electric vehicle control system
EP3178778B1 (de) 2015-12-10 2019-05-22 UniCarriers Europe AB Hydrauliksystem für energierückgewinnung und flurförderzeug mit diesem hydrauliksystem
US10844880B2 (en) 2017-01-17 2020-11-24 The Raymond Corporation Variable hydraulic pressure relief systems and methods for a material handling vehicle
AU2018202033B2 (en) * 2017-03-23 2023-06-01 The Raymond Corporation Systems and methods for mast stabilization on a material handling vehicle
DE102019111295A1 (de) * 2019-05-02 2020-11-05 Jungheinrich Aktiengesellschaft Hydraulikanordnung für ein Flurförderzeug
JP2022540807A (ja) * 2019-07-08 2022-09-20 ダンフォス・パワー・ソリューションズ・ツー・テクノロジー・エイ／エス 油圧システム構造及びシステム構造内で使用可能な双方向比例弁

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018156A1 (de) * 1980-02-26 1981-09-03 Oil Drive Kogyo Ltd., Tokyo Hydraulische hebevorrichtung
EP0630853A1 (de) * 1993-05-28 1994-12-28 Jungheinrich Aktiengesellschaft Hydraulische Hubvorrichtung für batteriegetriebene Flurförderzeuge oder dergleichen
EP0908413A2 (de) * 1997-10-08 1999-04-14 Still Wagner GmbH & Co. KG Fluförderzeug mit einer Lastaufnahmevorrichtung und Verfahren zum Absenken der Lastaufnahmevorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018156A1 (de) * 1980-02-26 1981-09-03 Oil Drive Kogyo Ltd., Tokyo Hydraulische hebevorrichtung
EP0630853A1 (de) * 1993-05-28 1994-12-28 Jungheinrich Aktiengesellschaft Hydraulische Hubvorrichtung für batteriegetriebene Flurförderzeuge oder dergleichen
EP0908413A2 (de) * 1997-10-08 1999-04-14 Still Wagner GmbH & Co. KG Fluförderzeug mit einer Lastaufnahmevorrichtung und Verfahren zum Absenken der Lastaufnahmevorrichtung

Also Published As

Publication number Publication date
EP1193211B1 (de) 2007-01-24
DE50111941D1 (de) 2007-03-15
EP1193211A2 (de) 2002-04-03
DE10048215A1 (de) 2002-04-11
ATE352515T1 (de) 2007-02-15

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