EP1588056B1 - Verfahren zum herstellen von kolbenspeichern - Google Patents

Verfahren zum herstellen von kolbenspeichern Download PDF

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Publication number
EP1588056B1
EP1588056B1 EP04702305A EP04702305A EP1588056B1 EP 1588056 B1 EP1588056 B1 EP 1588056B1 EP 04702305 A EP04702305 A EP 04702305A EP 04702305 A EP04702305 A EP 04702305A EP 1588056 B1 EP1588056 B1 EP 1588056B1
Authority
EP
European Patent Office
Prior art keywords
storage housing
longitudinal edge
lid component
cover part
housing
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
EP04702305A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1588056A1 (de
Inventor
Herbert Baltes
Walter Dorr
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.)
Hydac Technology GmbH
Original Assignee
Hydac Technology 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 Hydac Technology GmbH filed Critical Hydac Technology GmbH
Priority to EP07007946A priority Critical patent/EP1808605B1/de
Publication of EP1588056A1 publication Critical patent/EP1588056A1/de
Application granted granted Critical
Publication of EP1588056B1 publication Critical patent/EP1588056B1/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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/205—Accumulator cushioning means using gas
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
    • F15B2201/312—Sealings therefor, e.g. piston rings
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/415—Gas ports
    • F15B2201/4155—Gas ports having valve 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
    • F15B2201/00—Accumulators
    • F15B2201/60—Assembling or methods for making accumulators
    • F15B2201/605—Assembling or methods for making housings therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49394—Accumulator making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • Y10T29/49917—Overedge assembling of seated part by necking in cup or tube wall
    • Y10T29/49918—At cup or tube end

Definitions

  • the invention relates to a method for producing piston accumulators according to the feature configuration of the preamble of claim 1.
  • Piston accumulator as exemplified in the DE 2 238 211 A are shown in the broadest sense belong to the so-called hydraulic accumulators, which serve, inter alia, to hold certain volumes of pressurized fluid (hydraulic medium) of a hydraulic system and return them to the system if necessary. Since the hydraulic medium is under pressure, the hydraulic accumulators are treated like pressure vessels and must be designed for the maximum operating pressure, taking into account the acceptance standards of various installation countries. In most hydro plants today hydropneumatic (gas-loaded) memory are used with separating element, wherein the piston accumulators as a separating element serves a piston which separates a liquid space as a working space of a gas space as another working space within the storage housing of the piston accumulator. Nitrogen is regularly used as working gas and the gas-tight piston largely allows a decoupling of gas space to liquid space.
  • piston accumulator receives liquid and the gas is compressed. With decreasing pressure, the compressed gas expands, displacing the stored pressure fluid back into the hydraulic circuit.
  • the essential components of a piston accumulator are therefore as an accumulator housing an outer cylinder tube, the piston as a separating element with its sealing system and the front-side cap, which at the same time include a liquid and gas connection as cover parts.
  • the memory housing regularly two functions, namely once to stockpile the internal pressure and to ensure the other hand, the leadership of the piston within the storage enclosure.
  • the front side of the interior of the storage enclosure relative to the environment final lid parts are provided on the outer peripheral side with an external thread in a corresponding internal thread along the free longitudinal edge of the storage enclosure via a specifiable distance can be screwed.
  • the preparation of the pertinent threaded connection is time consuming, which increases the cost of manufacturing the piston accumulator accordingly.
  • safety measures must be taken to secure the inserted cover part in its position in the storage housing.
  • the invention has the object to further improve the known manufacturing process for piston accumulator that with low manufacturing costs a functionally reliable and secure connection of a cover part in the storage housing of a piston accumulator is ensured and that damage to the cover part can be avoided.
  • This object is achieved by a method having the features of claim 1 in its entirety.
  • the cover part can be set against this stop during the feed movement of the free longitudinal edge of the storage housing. Additionally or alternatively, however, it is also possible to simply insert the cover part at the free end of the storage housing and then trigger the delivery movement for the free longitudinal edge of the storage housing.
  • the Zustellterrorism can take place against the top cover, if the cover part is held in a pertinent position; but it would also be conceivable, a free delivery movement for Run the longitudinal edge, then then to move in the ready state, the cover part on the run in the storage chamber piston against the free longitudinal edge, which then makes such a clamp here.
  • a forming tool is provided which provided with Zustellschrägen the longitudinal edge of the storage housing on the cover part such that this is determined in the manner of said clamping fit in the storage enclosure.
  • the method according to the invention take in a common feed movement to the storage housing two forming tools on opposite sides before the fixing process for the respective end cover part by acting on the respective free longitudinal edge of the storage enclosure. It has proven to be very advantageous for the generation of high locking forces to deliver both free ends of the cylindrical storage enclosure alike, said acting at one end of the storage enclosure forming tool can safely support the forces from the other side during the forming process with the other forming tool be introduced into the storage enclosure.
  • the piston accumulator which is shown in FIG. 1 and belongs to the prior art, has as an accumulator housing 10 an outer cylinder tube in which a piston 12 with its outer peripheral sealing system 14 can be moved longitudinally as a separating element.
  • the piston 12 separates within the storage housing 10, two working spaces 16,18 from each other, wherein the one working space 16 of the inclusion of a working gas, in particular in the form of nitrogen, is used and the other second working space 18 forms the so-called.
  • the displacement position of the piston 12 and consequently the volume proportions of gas and fluid in the work spaces 16 and 18 vary.
  • a cover part 20, 22 is arranged with a gas connection 24 for replenishing the nitrogen working gas and with a fluid port 26 for connecting the piston accumulator to a not-shown hydro overall system.
  • the two cover parts 20,22 are each provided with an external thread 28 which is engageable with an internal thread 30 which is arranged to extend along the free longitudinal edge 32 and opens outwards into the open.
  • the respective cover part 20, 22 is provided with a seal 34 for sealing the interior of the storage housing 10 from the surroundings.
  • the attachment of the threaded sections 28,30 is associated with a certain manufacturing effort, which can be costly and expensive to manufacture the known piston accumulator.
  • an anti-twist device for the respective cover part 20, 22 is necessary in order to ensure its positional fixation within the storage housing 10.
  • a possible anti-rotation for the respective Dekkelteil 20,22 may consist in that along the threads 28,30 provides a conventional adhesive assurance or the cover part is held with a conventional retaining hole (with and without thread) in position.
  • the inventive method is characterized, inter alia, that the respective cover part, here the cover part 20, with its one lower side 36 against a stop 38 in the form of an annular surface in the interior of the storage enclosure 10 is inserted into this, wherein on the opposite side 40 of Lid portion 20 of this is determined over the free longitudinal edge 32 of the storage enclosure 10, for which purpose the longitudinal edge 32 undergoes a feed movement to the cover part 20, which will be explained in more detail below.
  • a forming tool 42 which is provided with at least one feed bevel 44, which sets the longitudinal edge 32 on the lid member 20 that this in the manner of a clamping fit in the storage housing 10 between the stop 38 and the Longitudinal edge 32 is fixed.
  • the upper side 40 of the cover part 20 is provided with a contact surface 46, which is arranged conically to the longitudinal axis 48 of the storage housing 10 extending.
  • the inclination of the pertinent contact surface 46 corresponds to the inclination of the feed bevel 44 of the forming tool 42; but here are also other obvious inclinations or slopes conceivable.
  • the feed direction for the forming tool 42 is the longitudinal axis 48 of the storage housing 10 or of the entire piston accumulator.
  • the separating element in the form of the piston 12 has been omitted in FIG. 2, just like the gas connection 24 shown in FIG. 1, which is also an integral part of the upper cover part 20 here.
  • the upper free end of the storage housing with its upper longitudinal edge 32 has a contour according to one of the representations according to Figures 3 to 6.
  • the longitudinal edge 32 is preferably provided on its side facing the cover part 20 and outwardly oriented with a conical insertion bevel 50.
  • the pertinent insertion bevel 50 facilitates the insertion of the cover part 20 in the free upper end of the storage housing 10, which will be explained in more detail below.
  • the free longitudinal edge 32 which in particular the illustration of Figures 4 and 5 shows the outside circumference and the free end of the storage enclosure 10 oriented towards be provided with a sliding bevel 52, which facilitates the longitudinal edge 32, according to its cylindrical shape the views according to Figures 3 to 6 in an zuplanned inclined position, wherein the sliding bevel 52 then slides along the feed slope 44 of the forming tool 42, provided that it is increasingly placed on the storage housing 10 in the feed direction. If the feed movement is completed with the forming tool 42, the longitudinal edge 32 is inclined to the cover part 20 along its contact surface 46 in the manner of a Festleschräge and thus holding the lid member 20 against the stop 38 in the interior of the storage enclosure 10 fixed.
  • the free longitudinal edge 32 along its free end with a supernatant over the overhead second side 40 of the cover part 20 is guided.
  • the forming tool 42 is moved away from the storage housing 10 again and then takes, for example, its upper position shown in Figure 2 a.
  • the forming process for the respective longitudinal edge 32 of the storage housing 10 is cold; but it is also a hot forming conceivable with appropriate heating of the storage housing material and preferably the forming tool 42 itself.
  • a material for the storage housing 10 with its longitudinal edge 32 is a conventional, good moldable steel material used.
  • the height of the cover part 20 is adapted in each case to the predetermined by the operation of the storage conditions.
  • the cover part 20 is at least twice as large as the length of the longitudinal edge 32 between its free end and a deflection point 54, from which the longitudinal edge 32 is placed on the lid top.
  • a particularly preferred embodiment (not shown) of the method according to the invention is in a common feed movement two forming tools 42 on opposite sides of the storage housing 10 of the fixing process for the respective end-side cover part 20,22 made simultaneously and together with substantially the same forming forces by acting on the respective free longitudinal edge 32 of the storage enclosure 10.
  • the respective opposite forming tool can simultaneously absorb the forces of the other forming tool during forming, as they occur during the forming process.
  • the pertinent embodiment can be saved on elaborate supporting devices on the respective opposite sides, where the forming tool 42 does not act. Also, such a harmonic introduction of force into the storage housing 10 occurs without the occurrence of damaging force peaks.
  • the Aufsetzwerkmaschine 56 has a receiving space 60, in which the upper end of the storage enclosure 10 is receivable, so that the Zu manufacturedschräge 58 flush with the upper edge of the longitudinal edge 32 and the rest continuously in the receiving area 62 for the actual cover part 20th , 22 in the memory housing 10 passes.
  • the storage housing 10 along its upper longitudinal edge 32 on the inner peripheral side and outwardly expanding with the insertion 50, which results in a kind of shortened slip edge over which the respective cover part 20,22 in the same way introduce and then set later.
  • the pertinent variant can be chosen if the lid seal 34 proves to be robust and should not be too vulnerable to damage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Actuator (AREA)
EP04702305A 2003-02-01 2004-01-15 Verfahren zum herstellen von kolbenspeichern Expired - Lifetime EP1588056B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07007946A EP1808605B1 (de) 2003-02-01 2004-01-15 Verfahren zum Herstellen von Kolbenspeichern

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10303988A DE10303988A1 (de) 2003-02-01 2003-02-01 Verfahren zum Herstellen von Kolbenspeichern
DE10303988 2003-02-01
PCT/EP2004/000230 WO2004067968A1 (de) 2003-02-01 2004-01-15 Verfahren zum herstellen von kolbenspeichern

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07007946A Division EP1808605B1 (de) 2003-02-01 2004-01-15 Verfahren zum Herstellen von Kolbenspeichern

Publications (2)

Publication Number Publication Date
EP1588056A1 EP1588056A1 (de) 2005-10-26
EP1588056B1 true EP1588056B1 (de) 2007-06-27

Family

ID=32730673

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07007946A Expired - Lifetime EP1808605B1 (de) 2003-02-01 2004-01-15 Verfahren zum Herstellen von Kolbenspeichern
EP04702305A Expired - Lifetime EP1588056B1 (de) 2003-02-01 2004-01-15 Verfahren zum herstellen von kolbenspeichern

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07007946A Expired - Lifetime EP1808605B1 (de) 2003-02-01 2004-01-15 Verfahren zum Herstellen von Kolbenspeichern

Country Status (6)

Country Link
US (1) US8387253B2 (enExample)
EP (2) EP1808605B1 (enExample)
JP (1) JP2006516706A (enExample)
AT (2) ATE365870T1 (enExample)
DE (3) DE10303988A1 (enExample)
WO (1) WO2004067968A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004043352A1 (de) 2004-09-08 2006-03-23 Hydac Technology Gmbh Hydrospeicher
GB2420380A (en) * 2004-11-18 2006-05-24 Parker Hannifin Plc Twin piston gas filled hydraulic actuator
DE102009021463A1 (de) * 2009-05-15 2010-11-18 Hydac Technology Gmbh Hydrospeicher
DE102015014797A1 (de) * 2015-11-14 2017-05-18 Hydac Technology Gmbh Sicherheitsvorrichtung

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734531A (en) * 1956-02-14 Hydraulic accumulators
US2748801A (en) * 1953-10-22 1956-06-05 Tommy J Mccuistion Accumulators
US3541833A (en) * 1966-04-25 1970-11-24 Jean Mercier Apparatus for forming pressure vessel ends
US3408731A (en) * 1966-04-25 1968-11-05 Mercier Jean Method of retaining cover member on pressure vessel
DE2238211A1 (de) * 1972-08-03 1974-02-14 Haenchen Kg Herbert Mit druckmittel beaufschlagbarer zylindrischer behaelter
DE3411592C2 (de) * 1984-03-29 1994-06-30 Hydac Technology Gmbh Hydropneumatischer Speicher
US4848448A (en) * 1987-12-28 1989-07-18 Mccord Heat Transfer Corporation Heat exchange assembly
JPH03101U (enExample) * 1989-05-23 1991-01-07
JPH0392679A (ja) * 1989-09-05 1991-04-17 Showa Mfg Co Ltd 圧力容器の製造方法
US5115663A (en) * 1989-11-25 1992-05-26 Honda Giken Kogyo Kabushiki Kaisha Method for forming a crankshaft
JP2531945Y2 (ja) * 1991-02-20 1997-04-09 株式会社ショーワ アキュームレータ構造
US5311910A (en) * 1991-02-20 1994-05-17 Kabushiki Kaisha Showa Seisakusho Cap attachment structure for accumulator
JPH08159102A (ja) * 1994-12-05 1996-06-18 Nok Corp アキュムレータ
JP3712321B2 (ja) * 1998-02-12 2005-11-02 カヤバ工業株式会社 アキュムレータ
JP2000071134A (ja) * 1998-08-27 2000-03-07 Nissan Diesel Motor Co Ltd エンジン組立作業におけるピストン挿入装置
EP1128073A1 (fr) * 2000-02-28 2001-08-29 Serta Procédé de fermeture de l'extrémité formant le fond ou le guide de tige du fût d'un cylindre de travail
IT1318123B1 (it) * 2000-07-05 2003-07-23 Alfamatic S R L Cilindro pneumatico, idraulico e simile, e metodo per la suarealizzazione
JP4342091B2 (ja) * 2000-08-03 2009-10-14 本田技研工業株式会社 ピストン挿入治具
US6460571B1 (en) * 2001-03-13 2002-10-08 Parker-Hannifin Corporation Crimped piston/membrane accumulator
DE10139192A1 (de) * 2001-08-16 2003-03-06 Hydac Technology Gmbh Kolbenspeicher
DE10313241A1 (de) 2003-03-25 2004-10-21 Hydac Technology Gmbh Kolbenspeicher

Also Published As

Publication number Publication date
JP2006516706A (ja) 2006-07-06
WO2004067968A1 (de) 2004-08-12
US8387253B2 (en) 2013-03-05
EP1588056A1 (de) 2005-10-26
EP1808605A1 (de) 2007-07-18
EP1808605B1 (de) 2009-04-15
ATE428861T1 (de) 2009-05-15
ATE365870T1 (de) 2007-07-15
US20060016074A1 (en) 2006-01-26
DE10303988A1 (de) 2004-08-19
DE502004009375D1 (de) 2009-05-28
DE502004004183D1 (de) 2007-08-09

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