ATE265623T1 - LINEAR DRIVE WITH INTEGRATED PNEUMOHYDRAULIC PRESSURE TRANSDUCER - Google Patents

LINEAR DRIVE WITH INTEGRATED PNEUMOHYDRAULIC PRESSURE TRANSDUCER

Info

Publication number
ATE265623T1
ATE265623T1 AT01915078T AT01915078T ATE265623T1 AT E265623 T1 ATE265623 T1 AT E265623T1 AT 01915078 T AT01915078 T AT 01915078T AT 01915078 T AT01915078 T AT 01915078T AT E265623 T1 ATE265623 T1 AT E265623T1
Authority
AT
Austria
Prior art keywords
pneumatic
membrane
hydraulic
hydraulic cylinder
cylinder
Prior art date
Application number
AT01915078T
Other languages
German (de)
Inventor
De Loecht Heinrich Van
Holger Jaeschke
Original Assignee
Kontec 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 Kontec Gmbh filed Critical Kontec Gmbh
Application granted granted Critical
Publication of ATE265623T1 publication Critical patent/ATE265623T1/en

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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • F15B11/0325—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters the fluid-pressure converter increasing the working force after an 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
    • F15B2211/20—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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/625—Accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Servomotors (AREA)

Abstract

The invention relates to a linear drive (1) comprising a pneumatic cylinder (2), which contains a pneumatic piston system (5) having a hydraulic cylinder (8). A plunger (26), which is fastened to the pneumatic cylinder (2), and a hydraulic piston (28), which drives a drive rod (29), are mounted inside said hydraulic cylinder (8). A space (27) is provided between the plunger (26) and the hydraulic cylinder (8) and the volume thereof varies according to the axial position of the pneumatic piston system (5). The pneumatic piston system (5) comprises a sleeve-like membrane (9) that radially encloses the hydraulic cylinder (8). A hydraulic accumulator (32) is provided between the membrane (9) and the hydraulic cylinder (8) and communicates with the interior (34) of the hydraulic cylinder (8). In order to prevent pneumatic medium from entering the hydraulic medium via the membrane (9), the invention provides that an intermediate layer (38), which encloses the hydraulic accumulator (32), is provided inside the membrane (9), whereby a pneumatic connection (39) applies an evacuating pressure to said intermediate layer (38) which is lower than a pneumatic pressure applied to the exterior of the membrane (9).
AT01915078T 2000-03-07 2001-03-06 LINEAR DRIVE WITH INTEGRATED PNEUMOHYDRAULIC PRESSURE TRANSDUCER ATE265623T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10011002A DE10011002C2 (en) 2000-03-07 2000-03-07 Linear drive with integrated pneumohydraulic pressure intensifier
PCT/DE2001/000827 WO2001066958A1 (en) 2000-03-07 2001-03-06 Linear drive comprising an integrated pneumohydraulic pressure intensifier

Publications (1)

Publication Number Publication Date
ATE265623T1 true ATE265623T1 (en) 2004-05-15

Family

ID=7633788

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01915078T ATE265623T1 (en) 2000-03-07 2001-03-06 LINEAR DRIVE WITH INTEGRATED PNEUMOHYDRAULIC PRESSURE TRANSDUCER

Country Status (4)

Country Link
EP (1) EP1261808B1 (en)
AT (1) ATE265623T1 (en)
DE (2) DE10011002C2 (en)
WO (1) WO2001066958A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2243144B1 (en) * 2004-12-28 2007-02-16 Enrique Angel Vidal Ramo CONTROL SYSTEM OF A MECHANICAL ARM.
RU2559079C1 (en) * 2014-05-19 2015-08-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" (ТюмГНГУ) Hydraulic cylinder with outline
CN111283672A (en) * 2018-12-10 2020-06-16 北华大学 Annular section pneumatic flexible axial driver
DE102019216453A1 (en) 2019-10-25 2021-04-29 Robert Bosch Gmbh Hydrostatic cylinder with gas pressure accumulator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945353A (en) * 1956-08-23 1960-07-19 Glas Maurus Hydraulic cylinder unit
DE2258593A1 (en) * 1972-11-30 1974-06-12 Erhard Stueber COMPRESSED GAS ACTUATED CYLINDER WITH HYDRAULIC FORCE REINFORCEMENT
DE2522380A1 (en) * 1975-05-21 1976-12-02 Teves Gmbh Alfred Pressure accumulator with membrane divided container - has double dividing wall with interspace filled with fluid
DE19758159C2 (en) * 1997-01-04 1999-12-09 Heinrich Van De Loecht Linear drive with integrated pneumohydraulic pressure intensifier

Also Published As

Publication number Publication date
EP1261808A1 (en) 2002-12-04
DE50102134D1 (en) 2004-06-03
DE10011002A1 (en) 2001-09-27
DE10011002C2 (en) 2002-01-31
EP1261808B1 (en) 2004-04-28
WO2001066958A1 (en) 2001-09-13

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee