EP0701065B1 - Druckzylinder für Hochdruckhydraulik - Google Patents

Druckzylinder für Hochdruckhydraulik Download PDF

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Publication number
EP0701065B1
EP0701065B1 EP19950112898 EP95112898A EP0701065B1 EP 0701065 B1 EP0701065 B1 EP 0701065B1 EP 19950112898 EP19950112898 EP 19950112898 EP 95112898 A EP95112898 A EP 95112898A EP 0701065 B1 EP0701065 B1 EP 0701065B1
Authority
EP
European Patent Office
Prior art keywords
pressure cylinder
cylinder according
tube
pressure
fibre
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.)
Expired - Lifetime
Application number
EP19950112898
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0701065A3 (de
EP0701065A2 (de
Inventor
Werner Prof. Dr. Ing. Hufenbach
Carsten H. Dr. Ing. Müller
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.)
Innotec Consult GmbH
Lingk and Sturzebecher GmbH
Original Assignee
Innotec Consult GmbH
Lingk and Sturzebecher 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 Innotec Consult GmbH, Lingk and Sturzebecher GmbH filed Critical Innotec Consult GmbH
Publication of EP0701065A2 publication Critical patent/EP0701065A2/de
Publication of EP0701065A3 publication Critical patent/EP0701065A3/de
Application granted granted Critical
Publication of EP0701065B1 publication Critical patent/EP0701065B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1433—End caps
    • 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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1428—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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
    • F15B2215/30—Constructional details thereof
    • F15B2215/305—Constructional details thereof characterised by the use of special materials

Definitions

  • the invention relates to a printing cylinder with a fiber-reinforced Plastic tube in which an actuating piston with piston rod is guided, the pressure cylinder end components has that with a cylindrical fitting in the Pressure cylinders are fitted and those with collar training protrude beyond the impression cylinder, at least one End component has a hole in which the Piston rod is guided and the feed and the Discharge of the high pressure medium through channels in the end components takes place, the final components by Tie rods are connected in the federal training are held.
  • the invention relates to an actuator of the high pressure hydraulics, which has at least one pressure cylinder, in which at least one metallic control piston with piston rod is led.
  • an actuator is the Printing cylinders generally provided with end components, which are pushed into the pressure cylinder, via tie rods held and sealed against the pressure cylinder are.
  • one of the end components is one closed component and the other has a hole in which the piston rod is guided sealed.
  • the Piston can also have a piston rod on both sides, which are performed in both final components.
  • several pistons can also be provided in the pressure cylinder his. It can be in the actuator z. B. one act single or double acting actuator.
  • the piston of such an actuator generally has molded metallic piston rings or polymeric sliding bands, that effect leadership. Can between the piston rings a soft seal may be arranged.
  • High pressure referred to in Under the invention a hydrostatic pressure of over 100 bar, e.g. B. from 400 to 500 bar.
  • the known pressure cylinder described at the beginning after the Preamble of claim 1, of which impression cylinder the invention is based has a cylinder housing on that just from a fiber reinforced Plastic is made.
  • cylinder housing is not for that suitable for high pressures of high pressure hydraulics.
  • You would this known pressure cylinder for an actuator Use high pressure hydraulics, so would inevitably Cylinder walls deformed after a short time or bulged.
  • the impression cylinder would be very quick leaky. The result is this well-known impression cylinder not suitable for high pressure hydraulics.
  • the pressure cylinder is a component made of steel, which one corresponding to the pressure of the high pressure medium Has wall thickness. That makes the actuating cylinder one heavy aggregate.
  • the invention is based on the technical problem, one lightweight printing cylinder specifying that for the High pressure hydraulics is suitable and even at high pressures of the print medium does not bulge and remains tight. It should a pressure cylinder for an actuator can be specified, especially in airplanes, ships and others Vehicles can be used without a disturbing Weight increase would have to be accepted.
  • Preferred embodiments of the printing cylinder according to the invention are the subject of claims 2 to 4.
  • a press device with a pressure cylinder, Actuating piston and piston rod known (GB-A-2 149 855) the cylinder housing consists of a thin metal tube, that of a fiber-reinforced plastic outer tube is surrounded.
  • the pressure cylinder of the press device should also be suitable for high pressures of the medium.
  • On the Cylinder housing of the associated printing cylinder are End pieces in the form of overlapping lids, which are glued to the plastic tube.
  • This known pressure cylinder can withstand the high pressures of the Do not withstand high pressure hydraulics for long. At such high The lid-shaped glued on would inevitably press End parts blown off from the pressure cylinder, as it were.
  • Actuators which are a pressure cylinder made of a metallic Liner and a jacket made of fiber-proven plastic have are known in principle (WO 93/23675).
  • the metallic liners and the casing are not as here circular cylindrical tubes. The manufacture is therefore complex.
  • actuators are also known have a pressure cylinder made of inner tube and outer tube (WO 91/11319), both made of fiber-proven plastic consist. These actuators are for high pressure hydraulics not very suitable.
  • the invention is based on the knowledge that in one Actuator for the high pressure hydraulics of the described Construction of the pressure cylinder from a thin-walled inner tube and can consist of a fiber-reinforced plastic tube, if the requirements described in claim 1 are realized.
  • an actuator according to the invention would the high pressure medium in the outer tube, which with the End components is connected easily in the circumferential direction produce tractive forces, which High pressure medium increases the diameter of the outer tube. This would affect the tightness between the piston and the inner tube result. Surprisingly this disruptive deformation can be prevented, if in the manner described a fiber composite outer tube used with a high modulus of elasticity in the circumferential direction becomes.
  • the outer jacket is below the tie rods low preload if the high pressure medium is not pending.
  • the preload can. even without a non-positive Bond between the final components and the Inner jacket be set up so that under the pressure of the High pressure means disruptive deformation of the pressure cylinder do not occur.
  • Composite unit made of a metallic liner in the form of a circular cylindrical inner tube and one on it attached fiber-reinforced plastic tube Aggregate of these two components, regardless of whether that fiber-reinforced plastic pipe via a shrink connection or via an adhesive connection with the metallic Inner tube is connected.
  • the Composite also be given in that the outer tube the inner tube is wound directly, the different thermal expansions of the two materials, Metal on the one hand and fiber-reinforced plastic on the other, can be used specifically.
  • the result is the teaching of the invention to a printing cylinder or Actuator of very light construction, which nonetheless to absorb extremely high pressures of the high pressure medium in the Is able and can produce corresponding actuating forces.
  • the actuators constructed according to the teaching of the invention are also characterized by a long service life. she are nonetheless simply too mass-produced manufacture.
  • the printing cylinder takes axial forces due to pressure medium do not occur. These will exclusively taken up by the pull rod, the one Do not hinder deformation in the circumferential or radial direction. The preload caused by the tie rods is low. Buckling deformations of the printing cylinder are avoided. A disruptive increase in diameter as a result of The highly rigid fiber composite pipe counteracts internal pressure.
  • the federal training can be used as all-round collar and molded onto the adapters his. But there is also the possibility of the federal recesses run as fret sections and to the To form adapters. Depending on the design of the federal training one could also speak of flanges.
  • the tie rods designed as a bolt and have this Nuts on which the tractive force can be adjusted.
  • the fiber-reinforced plastic pipe is expedient in detail executed as it is from the claims 8 to 13 results.
  • the actuators shown in the figures are Actuators for high pressure hydraulics. At least you own a printing cylinder 1 in which a metallic Actuating piston 2 is guided with piston rod 3.
  • FIGS. 1 and 2 From a comparative view of FIGS. 1 and 2 one can see that as a pressure cylinder 1 a composite unit from a metallic liner in the form of a circular cylindrical Inner tube 4 and one placed thereon fiber-reinforced plastic tube 5 is executed.
  • the Plastic tube forms the outer tube.
  • the printing cylinder 1 has metallic end components 6, which with a cylindrical fitting 7 fitted into the impression cylinder 1 and are connected to it in a sealed manner.
  • the final components 6 are with federal training 8 over the Printing cylinder in front.
  • the arrangement is such that at least one end component 6 has a bore 9 in which the piston rod 3 is guided.
  • Usual seals 10 are provided. The supply and discharge of the High pressure medium takes place via channels 11 in these end components 6.
  • the two end components 6 are by tie rods 12 connected, which are held in the federal training 8. She are z. B. passed through corresponding holes 13.
  • the tie rods 12 By connecting the pressure cylinder 1 to the Final components 6 and by adjusting the tensile force the tie rods 12 is the pressure cylinder 1 against high pressure medium Deformations stabilized.
  • the Fig. 1 likes the pressure cylinder 1 under the pressure of a high pressure medium stand. It can be seen that the printing cylinder 1 does not have deformations caused by high pressure medium.
  • the Inner tube 4 is preferred in the exemplary embodiment and after Embodiment of the invention a drawn tube in the form a precision tube with a wall thickness of less than 1 mm. It was for reasons of scale in Fig. 1 with a drawn excessively thick wall.
  • the control piston 2 and / or the end components 6 exist from an alloy of the group steel alloys, aluminum alloys, Magnesium alloys, aluminum / magnesium alloys.
  • the end components 6 may with the inner tube 4th be positively connected, as in FIG. 1 is indicated.
  • the composite also acts as a seal.
  • the collar training 8 as a circumferential Running collar, the flange-like in the embodiment Has character.
  • the tie rods 12 are bolts that Have nuts 14, via which the tensile force is adjustable is.
  • the construction of the plastic pipe 5 can only be hinted at. It is so in detail designed as it corresponds to claims 9 to 14.
  • Fig. 3 was indicated that according to the teaching of Actuator constructed according to the invention also includes an actuating piston 2 have two piston rods 3 or two actuating pistons 2 can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP19950112898 1994-08-27 1995-08-17 Druckzylinder für Hochdruckhydraulik Expired - Lifetime EP0701065B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4430502 1994-08-27
DE19944430502 DE4430502C2 (de) 1994-08-27 1994-08-27 Verwendung eines Verbundaggregates aus einem Liner und einem faserverstärkten Kunststoffrohr als Druckzylinder eines Stelltriebes der Hochdruckhydraulik

Publications (3)

Publication Number Publication Date
EP0701065A2 EP0701065A2 (de) 1996-03-13
EP0701065A3 EP0701065A3 (de) 1996-12-27
EP0701065B1 true EP0701065B1 (de) 2000-03-01

Family

ID=6526745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950112898 Expired - Lifetime EP0701065B1 (de) 1994-08-27 1995-08-17 Druckzylinder für Hochdruckhydraulik

Country Status (4)

Country Link
EP (1) EP0701065B1 (da)
DE (1) DE4430502C2 (da)
DK (1) DK0701065T3 (da)
ES (1) ES2145858T3 (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004008523A1 (de) * 2004-02-20 2005-09-08 Liebherr-Aerospace Lindenberg Gmbh Druckzylinder und Kolbenstange für Aktuatoren und Stoßdämpfer und Verfahren zu deren Herstellung
WO2006055997A1 (de) * 2004-11-25 2006-06-01 HÖLZL, Margit Zylinder für hochdruckhydraulik

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645467A1 (de) * 1996-11-05 1998-05-14 Deutsch Zentr Luft & Raumfahrt Vorrichtung zur Krafteinleitung
DE19647506C2 (de) * 1996-11-16 2000-06-15 Lingk & Sturzebecher Leichtbau Kolbenstange für einen Stellkolben eines Stelltriebs
DE19649133C1 (de) * 1996-11-27 1998-03-05 Dornier Gmbh Hydraulik-Zylinder
DE19732934A1 (de) * 1997-07-31 1999-02-04 Mannesmann Rexroth Ag Hydraulischer Zylinder in Zugankerbauart, insbesondere für Kleinpressen
DE19811657A1 (de) * 1998-03-18 1999-09-23 Schaeffler Waelzlager Ohg Hydraulisch betätigbares Ausrücksystem
EP0987446A1 (de) * 1998-09-15 2000-03-22 Lingk & Sturzebecher Leichtbau GmbH Hydraulikzylinder
DE19925600A1 (de) * 1999-06-04 2000-12-14 Sbs Sondermaschinen Gmbh Leichtbau-Hydraulikzylinder mit Zugankern
DE102006047413B4 (de) * 2005-10-06 2014-01-16 Technische Universität Dresden Zylinder aus Faserverbundwerkstoff mit metallischen Flanschkomponenten sowie Verfahren zur Herstellung
NZ561410A (en) 2007-09-11 2010-04-30 Parker Hannifin Gmbh End-fittings for composite tubes, method for joining fittings to the ends of composite tubes and composite tubes incorporating end-fittings
US8695643B2 (en) 2007-11-08 2014-04-15 Parker-Hannifin Corporation Lightweight high pressure repairable piston composite accumulator with slip flange
EP2060797A3 (en) 2007-11-13 2012-11-14 Parker-Hannifin Corporation Lightweight high pressure repairable piston tie rod composite accumulator
DE102009014813B4 (de) * 2009-03-25 2014-10-23 Festo Ag & Co. Kg Linearantrieb
DE102009029299B4 (de) * 2009-09-09 2015-12-31 Leichtbau-Zentrum Sachsen Gmbh Schwingungsdämpfer
AT512703B1 (de) * 2012-04-12 2014-06-15 Neuson Hydrotec Gmbh Kolben-Zylindereinheit
DE102015211545B3 (de) * 2015-06-23 2016-11-10 Innotec Lightweight Engineering & Polymer Technology Gmbh Zylinderrohr für einen Hydraulik- oder Pneumatikzylinder
DE102017000857A1 (de) * 2017-01-31 2018-08-02 Liebherr-Components Kirchdorf GmbH Zylinder-Kolben-Vorrichtung
EP3546787B1 (en) * 2018-03-27 2021-02-24 Aida Engineering, Ltd. Gas cushion device
DE102023200931B4 (de) * 2023-02-06 2025-05-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Hydraulikzylinder, Verfahren zu seiner Herstellung und damit ausgestatteter Bohrhammer
DE102023205446A1 (de) * 2023-06-13 2024-12-19 Zf Friedrichshafen Ag Verstellbare Dämpfventileinrichtung
EP4545807A1 (en) * 2023-10-23 2025-04-30 Goodrich Actuation Systems SAS Actuator assembly

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US3286737A (en) * 1963-08-01 1966-11-22 Dowsmith Inc Wear-resistant article and method of making the same
DE6916307U (de) * 1969-04-23 1969-09-04 Kloeckner Werke Ag Druckzylinder
FR2554876B1 (fr) * 1983-11-10 1988-02-26 Peugeot Aciers Et Outillage Verin a base de materiaux composites
IT1185613B (it) * 1985-05-30 1987-11-12 Magnaghi Cleodinamica Spa Accumulatore di pressione gas-olio con struttura in materiali compositi per circuiti idraulici di velivoli
US4885981A (en) * 1988-04-08 1989-12-12 General Signal Corporation Spring return cylinder actuator
WO1991011319A1 (fr) * 1990-01-25 1991-08-08 Hitachi Construction Machinery Co., Ltd. Recipient de pression en materiau composite
US5415079A (en) * 1992-05-13 1995-05-16 Hr Textron, Inc. Composite cylinder for use in aircraft hydraulic actuator
DE9207582U1 (de) * 1992-06-04 1992-08-20 Festo KG, 7300 Esslingen Gehäuse für einen Arbeitszylinder
JPH0829265B2 (ja) * 1992-12-09 1996-03-27 崇 川合 粒体選別装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004008523A1 (de) * 2004-02-20 2005-09-08 Liebherr-Aerospace Lindenberg Gmbh Druckzylinder und Kolbenstange für Aktuatoren und Stoßdämpfer und Verfahren zu deren Herstellung
DE102004008523B4 (de) * 2004-02-20 2007-02-01 Liebherr-Aerospace Lindenberg Gmbh Verfahren zur Herstellung eines Druckzylinders und Kolbenstange für Aktuatoren oder Stoßdämpfer und Verfahren zu deren Herstellung
WO2006055997A1 (de) * 2004-11-25 2006-06-01 HÖLZL, Margit Zylinder für hochdruckhydraulik

Also Published As

Publication number Publication date
DE4430502C2 (de) 1999-08-19
DK0701065T3 (da) 2000-07-31
ES2145858T3 (es) 2000-07-16
EP0701065A3 (de) 1996-12-27
EP0701065A2 (de) 1996-03-13
DE4430502A1 (de) 1996-02-29

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