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EP0870929A3 - Hydraulic cable lift - Google Patents

Hydraulic cable lift Download PDF

Info

Publication number
EP0870929A3
EP0870929A3 EP98105493A EP98105493A EP0870929A3 EP 0870929 A3 EP0870929 A3 EP 0870929A3 EP 98105493 A EP98105493 A EP 98105493A EP 98105493 A EP98105493 A EP 98105493A EP 0870929 A3 EP0870929 A3 EP 0870929A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic cable
working fluid
cable lift
load
differential cylinder
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.)
Withdrawn
Application number
EP98105493A
Other languages
German (de)
French (fr)
Other versions
EP0870929A2 (en
Inventor
Georg Sebode
Dieter Klitzke
Manfred Mägerlein
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.)
Leistritz AG
Original Assignee
Leistritz AG
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 Leistritz AG filed Critical Leistritz AG
Publication of EP0870929A2 publication Critical patent/EP0870929A2/en
Publication of EP0870929A3 publication Critical patent/EP0870929A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F15B11/003—Systems with load-holding 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
    • 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
    • F15B2211/20561—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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Types And Forms Of Lifts (AREA)
  • Actuator (AREA)

Abstract

Hydroseilaufzug, umfassend eine Antriebsvorrichtung mit einem mit einem Arbeitsfluid beaufschlagbaren Differentialzylinder (1) zum Bewegen einer Last, insbesondere einer eine Zuladung aufnehmenden Kabine, wobei der Differentialzylinder (1) in einen ein Fördermittel für das Arbeitsfluid aufweisenden Fluidkreislauf eingebunden ist und zwei Arbeitsräume (23,24) aufweist, die beide in Abhängigkeit der geforderten Bewegung mit Arbeitsfluid beaufschlagbar sind.

Figure 00000001
Hydraulic cable elevator, comprising a drive device with a differential cylinder (1) which can be loaded with a working fluid, for moving a load, in particular a cabin which can carry a load, the differential cylinder (1) being integrated in a fluid circuit having a conveying means for the working fluid and two working spaces (23, 24), both of which can be acted upon with working fluid depending on the required movement.
Figure 00000001
EP98105493A 1997-04-11 1998-03-26 Hydraulic cable lift Withdrawn EP0870929A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997115224 DE19715224C2 (en) 1997-04-11 1997-04-11 Hydro rope elevator
DE19715224 1997-04-11

Publications (2)

Publication Number Publication Date
EP0870929A2 EP0870929A2 (en) 1998-10-14
EP0870929A3 true EP0870929A3 (en) 1998-11-04

Family

ID=7826268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98105493A Withdrawn EP0870929A3 (en) 1997-04-11 1998-03-26 Hydraulic cable lift

Country Status (2)

Country Link
EP (1) EP0870929A3 (en)
DE (1) DE19715224C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19958257B4 (en) * 1999-12-03 2008-04-24 Bosch Rexroth Aktiengesellschaft Semi-open hydraulic circuit
DE10228009B4 (en) * 2002-06-22 2008-05-29 Florian Prates Control unit for a hydraulic lift with counterweight compensation
DE102014111359A1 (en) * 2014-05-20 2015-11-26 Wittur Holding Gmbh Method for operating a car brake unit
WO2015177234A1 (en) * 2014-05-20 2015-11-26 Wittur Holding Gmbh Safety device for operating an elevator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2356380A1 (en) * 1973-11-12 1975-05-15 Peiner Masch Schrauben Hydraulically-operated grab - has changeover valves in supply piping controlling pipes from relief valves to tank
GB2198115A (en) * 1986-10-22 1988-06-08 Hitachi Ltd Hydraulic elevator
EP0405160A1 (en) * 1989-06-26 1991-01-02 Allweiler AG Screw rotor pump
FR2671144A1 (en) * 1990-12-28 1992-07-03 Faivre Duboz Denis Device for controlling an autonomous thrust cylinder
DE4227001A1 (en) * 1992-08-14 1994-02-17 Rexroth Mannesmann Gmbh Hydraulic drive for cam setting in IC engine - has hydraulic pump driven by reversible DC motor and separated from pump by non return valves cross linked to other feed lines.
WO1994005583A1 (en) * 1992-08-31 1994-03-17 Captine Pty. Ltd. Multiple ram assembly and recuperative drive system for hydraulic lift

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2735310A1 (en) * 1977-08-05 1979-02-15 Florian Prates Hydraulic indirect drive for lift - has ram-operated counterweight to counter-balance cage weight plus half payload
DE2921446A1 (en) * 1979-05-26 1980-11-27 Robert Alexander Maubach Hydraulically operated lift assembly - has piston completely enclosed in oil and pressure pipe connected to both cylinder ends
DE3629032C2 (en) * 1986-08-27 1994-02-03 Haushahn C Gmbh Co Hoists, especially elevators

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2356380A1 (en) * 1973-11-12 1975-05-15 Peiner Masch Schrauben Hydraulically-operated grab - has changeover valves in supply piping controlling pipes from relief valves to tank
GB2198115A (en) * 1986-10-22 1988-06-08 Hitachi Ltd Hydraulic elevator
EP0405160A1 (en) * 1989-06-26 1991-01-02 Allweiler AG Screw rotor pump
FR2671144A1 (en) * 1990-12-28 1992-07-03 Faivre Duboz Denis Device for controlling an autonomous thrust cylinder
DE4227001A1 (en) * 1992-08-14 1994-02-17 Rexroth Mannesmann Gmbh Hydraulic drive for cam setting in IC engine - has hydraulic pump driven by reversible DC motor and separated from pump by non return valves cross linked to other feed lines.
WO1994005583A1 (en) * 1992-08-31 1994-03-17 Captine Pty. Ltd. Multiple ram assembly and recuperative drive system for hydraulic lift

Also Published As

Publication number Publication date
EP0870929A2 (en) 1998-10-14
DE19715224C2 (en) 1999-04-15
DE19715224A1 (en) 1998-10-15

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