EP0880652B1 - Cylindre de travail vissable actionne par un fluide de pression avec elements de fermeture pour accouplement du tube cylindrique - Google Patents

Cylindre de travail vissable actionne par un fluide de pression avec elements de fermeture pour accouplement du tube cylindrique Download PDF

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Publication number
EP0880652B1
EP0880652B1 EP97914049A EP97914049A EP0880652B1 EP 0880652 B1 EP0880652 B1 EP 0880652B1 EP 97914049 A EP97914049 A EP 97914049A EP 97914049 A EP97914049 A EP 97914049A EP 0880652 B1 EP0880652 B1 EP 0880652B1
Authority
EP
European Patent Office
Prior art keywords
closure part
cylinder
sealing surface
sealing
cylinder tube
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
EP97914049A
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German (de)
English (en)
Other versions
EP0880652A1 (fr
Inventor
Josef Büter
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.)
Buemach Engineering International BV
Original Assignee
Buemach Engineering International BV
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 Buemach Engineering International BV filed Critical Buemach Engineering International BV
Publication of EP0880652A1 publication Critical patent/EP0880652A1/fr
Application granted granted Critical
Publication of EP0880652B1 publication Critical patent/EP0880652B1/fr
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
    • F15B15/1438—Cylinder to end cap assemblies
    • F15B15/1442—End cap sealings

Definitions

  • the invention relates to a screwable pressure medium operated cylinder Locking parts for coupling the cylinder tube in the field of energy transmission using flowing media (liquids, gases) as pressure medium for the translational Movement of mechanisms can be used, especially in the aggressive media High pressure area is suitable.
  • Screwable pressure-operated working cylinders are known, according to DE OS 19 215 43, especially hydraulic differential or plunger, at least a piston-receiving cylinder tube provided on the bottom or head part Closure parts is provided, which is screwed onto the external thread of the cylinder tube and sealed with a ring seal on the internal thread become.
  • Screwable working cylinders according to EP 060 17 36 A1 are also known where the thread carrying the closure parts is arranged in the inner jacket of the cylinder tube is and the sealing takes place via sealing elements.
  • Screw-in working cylinders with inner cylinder tubes or are also designed Cylinder tube external thread in which the sealing by an elastomeric seal takes place, which is arranged in the annular end face of the cylinder tube or also how shown in DE 35 17 137 A 1, as an end seal of the guide closure part.
  • the document DE 1675 299 shows a pressure-operated cylinder, the a piston-receiving cylinder tube with a cylinder head for coupling the Cylinder tube and an interchangeable guide sleeve is provided. Furthermore points this document - between the means guide sleeve and cylinder head - each a bevel pretensioned by means of a thread, which by pressing the to each other conformal metallic chamfer surfaces centering the - replaced - Guide bushing enables.
  • the disadvantage of this solution is that in previously known Way to ensure the tightness between the cylinder and the cylinder head special seals made of deformable sealing materials in the sealing surfaces must be provided. In this case, the chamfer surface primarily serves only for centering and not for poetry.
  • All known screwable working cylinders fulfill the cylinder tube seal always by storing elastomeric sealing elements.
  • Pressurized linear motors in screw design require a highly qualified Manufacturing technology and are therefore expensive to manufacture. Still are they can only be used to a limited extent, especially in the aggressive media high pressure area.
  • the parts of the working cylinder are coated to be resistant to aggressive Media to be, also with regard to the action of high-tension pressure media remain susceptible to failure, additional costs arise for the production of the composite body.
  • the object of the invention is to provide a screwable pressure medium operated cylinder to develop the high pressure range, even in an aggressive atmosphere, works reliably, can be manufactured inexpensively and under extensive use of chipless manufacturing technology is easy to manufacture as well as advantages.
  • the advantages of the invention are that the working cylinder in the high pressure range is not susceptible to interference. Its production is less complex and the costly machining production is eliminated.
  • the working cylinder can be used in aggressive media, whereby the coating of the working cylinder because of the resistance to be achieved if suitable Material selection is omitted.
  • the working cylinder as a screw-press connection component the expensive welded connections and the change are eliminated worn individual components is possible without any problems.
  • a higher surface pressure the sealing surfaces are given by the special non-cutting manufacturing of the sealing surfaces. The manufacture and assembly of the components is easy, it can be inexperienced from non-specialist trained personnel.
  • a screwable pressure medium-operated working cylinder 1 which consists of closure parts - a guide closure part 2, and a bottom closure part 3 -, a cylinder tube 4 and a differential piston 5 with a piston rod 6.
  • a wiper seal 7 and a guide seal 8 provided.
  • the sealing of the thread - thread pairing 9 with external thread 9.1 and internal thread 9.2 - is done by high axial metallic pressure of sealing surfaces - one Guide closure part sealing surface 10 or bottom closure part sealing surface 11 with the bevel-shaped cylindrical tube sealing surface 12 -, due to the screwing of the Guide closure part 2 and bottom closure part 3 with the cylinder tube 4, the Thread pair 9 from the external thread 9.1 of the cylinder tube 4 and the internal thread 9.2 of the guide closure part 2.
  • the pressure is like this kept large that the guide closure part sealing surface 10, bottom closure part sealing surface 11 (not shown - see Figure 1) and the respective cylinder tube sealing surface 12, follow the axial and radial displacements in the lattice structure of the materials can without lifting off from each other when the working cylinder is loaded.
  • the cylinder tube 4 is operatively connected to the guide closure part 2 represented by an interchangeable insert 20 and the thread pairing 9, wherein in the Thread clearing 17 low-viscosity adhesive 19 can be entered if necessary can.
  • the parts involved in the pressing are made of an iron material, the Metal alloys have to correspond to the respective application.
  • each of these variants enables, for example, the conformal sealing part of the guide closure part 10 in the guide closure part 2 and bottom closure part 3 as exchangeable Form insert 20, so that the variety of designs around this number of possibilities extended.
  • the design variants each have specific advantages, which come into play depending on the individual case.
  • the non-cutting formation of the parts involved in the pressing - at least in the Close range of these sealing surfaces 10; 11; 12 and 22 due to the rolling of the thread and the sealing chamfer on the pressed parts - has the effect that the molded parts in the vicinity of the sealing surface in its material structure, due to the grid dislocations, are less elongated than the adjacent crystalline normal structure of the pressed parts have not been subjected to non-cutting shaping.
  • microcontours that remain in the guide closure part sealing surface even when rolled on 10, bottom closure part sealing surface 11, cylinder tube sealing surface 12 and inner tube jacket sealing surface 22 endanger the seal if the in these contours creep currents of the sealant under higher Stand pressure than the pressing pressures of the sealing surfaces 10; 11; 12; 22nd
  • the cavity is 16 sufficiently toleranced for the length of the cylinder tube 4.
  • the chipless production of the sealing surfaces fulfills the condition: R z ⁇ 0.4 ⁇ m
  • the modulus of elasticity of the materials that are suitable for the sealless coupling lies within the temperature range 0 ° to 200 °, in the range of 60 to 250 ⁇ 10 3 N / mm 2 ⁇ 10% of this value.
  • the limit load is given by the respective yield strength of the materials used, which in the case of this solution is between 200 N / mm 2 and 1050 N / mm 2 , depending on the quality of the material used. It is essential to keep the loads within these limits to ensure this solution principle. The following applies: - ⁇ x E ⁇ R e

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Sealing Devices (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Forging (AREA)
  • Tents Or Canopies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Claims (5)

  1. Vérin moteur actionné par un fluide sous pression, pouvant être vissé, équipé de parties de fermeture pour assurer le couplage du tube de cylindre qui est susceptible d'être mis en oeuvre dans la zone de la transmission d'énergie, au moyen de milieux en écoulement dans la zone haute pression, à titre de fluide sous pression pour assurer un déplacement en translation de mécanismes, dont le tube de cylindre (4) recevant un piston (5) est doté d'une partie de fermeture [(2), (3)], où tant la partie de fermeture [(2), (3)] qu'également le tube de cylindre (4) présentent des faces d'étanchéité [(10), (11), (12), (22)] conformes les unes par rapport aux autres et, dans leur zone proche limitrophe, chaque fois un filetage [(9), (9-1), (9-2)] ; où le pressage l'une sur l'autre des faces d'étanchéité [(10), (11), (12), (22)] s'effectue en vue d'obtenir l'étanchéité sous précontrainte au moyen du vissage de la partie fermeture [(2), (3)] avec le tube de cylindre (4), sans faire appel à des moyens d'étanchéité supplémentaires,
    les faces d'étanchéité [(10), (11), (12), (22)] présentent une inclinaison plate comprise entre 60 et 120, entre les faces d'étanchéité [(10), (11), (12), (22)] et les filetages [(9), (9.1), (9.2)], est prévu un espace libre (15) nécessaire pour assurer la précontrainte et, en outre, un espace creux (16), destiné à assurer un déplacement axial des parties de pressage {4, [(2),(3)]}, étant adjoint ; les faces d'étanchéité [(10), (11), (12), (22)] et les filetages [(9), (9.1), (9.2)] des parties de pressage {4, [(2),(3)]} étant chacun immobilisés par un façonnage effectué sans production de copeaux, par laminage, la précontrainte des faces d'étanchéité [(10), (11), (12), (22)], destinées au pressage des parties de pressage {4, [(2), (3)]}, étant d'une valeur faisant que la relaxation, se produisant suite à la pression de fonctionnement du fluide sous pression, subsiste en totalité dans la plage précontrainte élastiquement ; le module d'élasticité des matériaux des faces d'étanchéité [(10), (11)] placées en liaison fonctionnelle, dans les limites de la plage de températures de 0 à 2000C, étant dans une plage de valeurs allant de 60 à 250 x 103 N/mm2 +/_ 10 % et la charge limite étant donnée par la limite d'étirement respective des matériaux utilisés, entre 200 et 1050 N/mm2.
  2. Vérin moteur actionné par un fluide sous pression, susceptible d'être vissé, avec des parties de fermeture destinées au couplage du tube de cylindre selon la revendication 1,
    caractérisé en ce que
    la face d'étanchéité (12) de tube de cylindre et la face d'étanchéité (22) d'enveloppe de tube intérieur, aux extrémités du tube de cylindre (4), sont disposées sur l'enveloppe extérieure et intérieure de celui-ci, et la face d'étanchéité (10) de partie de fermeture de guidage afférente et la face d'étanchéité (11) de la partie de fermeture de fond de partie de fermeture de guidage (2) et de la partie de fermeture de fond (3) étant positionnées en conformité de position dans ceux-ci.
  3. Vérin moteur actionné par un fluide sous pression, susceptible d'être vissé, équipé de parties de fermeture pour le couplage du tube de cylindre selon la revendication 1 et la revendication 2,
    caractérisé en ce que
    la face d'étanchéité (10), de partie de fermeture de guidage, et la face d'étanchéité (11) de partie de fermeture de fond sont insérables dans la partie de fermeture de guidage (2) et la partie de fermeture de fond (3), dans des pièces rapportées fabriquées séparément, sous forme de pièces rapportées (20) remplaçables, qui, dans la position à conformité de position de la face d'étanchéité (12) de tube de cylindre et de la face d'étanchéité (22) d'enveloppe de tube intérieure sur le tube de cylindre, sont positionnées dans la partie de fermeture de guidage (2) et la partie de fermeture de fond (3).
  4. Vérin moteur actionné par un fluide sous pression, susceptible d'être vissé, équipé de parties de fermeture pour assurer le couplage du tube de cylindre selon la revendication 1 à la revendication 3,
    caractérisé en ce que
    le filetage extérieur (9.1), après une entaille libre (23) se transforme directement en la face d'étanchéité (12) de tube de cylindre conique.
  5. Vérin moteur actionné par un fluide sous pression, susceptible d'être vissé, équipé de parties de fermeture pour le couplage du tube de cylindre selon la revendication 1 à la revendication 4,
    caractérisé en ce que
    la profondeur de rugosité RZ = 0,4 µm n'est pas dépassée.
EP97914049A 1996-02-07 1997-01-04 Cylindre de travail vissable actionne par un fluide de pression avec elements de fermeture pour accouplement du tube cylindrique Expired - Lifetime EP0880652B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29602088U 1996-02-07
DE29602088U DE29602088U1 (de) 1996-02-07 1996-02-07 Verschraubbarer druckmittelbetätigter Arbeitszylinder mit Verschlußteilen zur Kopplung des Zylinderrohres
PCT/DE1997/000039 WO1997029287A1 (fr) 1996-02-07 1997-01-04 Cylindre de travail vissable actionne par un fluide de pression avec elements de fermeture pour accouplement du tube cylindrique

Publications (2)

Publication Number Publication Date
EP0880652A1 EP0880652A1 (fr) 1998-12-02
EP0880652B1 true EP0880652B1 (fr) 2002-08-28

Family

ID=8019113

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EP97914049A Expired - Lifetime EP0880652B1 (fr) 1996-02-07 1997-01-04 Cylindre de travail vissable actionne par un fluide de pression avec elements de fermeture pour accouplement du tube cylindrique

Country Status (13)

Country Link
US (1) US6196112B1 (fr)
EP (1) EP0880652B1 (fr)
JP (1) JP3342494B2 (fr)
CN (1) CN1088806C (fr)
AT (1) ATE223001T1 (fr)
CA (1) CA2245764C (fr)
CZ (1) CZ296713B6 (fr)
DE (2) DE29602088U1 (fr)
HK (1) HK1018497A1 (fr)
HU (1) HU220939B1 (fr)
PL (1) PL182356B1 (fr)
RU (1) RU2150615C1 (fr)
WO (1) WO1997029287A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012008998U1 (de) 2012-09-19 2014-01-09 Bümach Engineering International B.V. Arbeitszylinder
DE202012009001U1 (de) 2012-09-19 2014-01-15 Bümach Engineering International B.V. Arbeitszylinder
DE202016007691U1 (de) * 2016-12-21 2018-03-22 Bümach Engineering International B.V. Schraubarbeitszylinder

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IT1318123B1 (it) * 2000-07-05 2003-07-23 Alfamatic S R L Cilindro pneumatico, idraulico e simile, e metodo per la suarealizzazione
FR2822201A1 (fr) * 2001-03-15 2002-09-20 Nk System Nv Verin hydraulique a etancheite amelioree
DE10122512C2 (de) * 2001-05-09 2003-05-28 Hyco Pacoma Gmbh Hydraulikzylinder mit Schwenkzapfen
TWI291467B (en) 2002-11-13 2007-12-21 Millennium Pharm Inc CCR1 antagonists and methods of use therefor
FI20040942A (fi) * 2004-07-06 2006-01-07 Rocla Oyj Trukkimasto
JP5481268B2 (ja) * 2010-04-28 2014-04-23 日立オートモティブシステムズ株式会社 シリンダ装置
WO2013040770A1 (fr) * 2011-09-21 2013-03-28 长沙中联重工科技发展股份有限公司 Structure de liaison d'élément fonctionnel de cylindre d'entraînement
ITMI20120272A1 (it) 2012-02-23 2013-08-24 Cifa Spa Corpo tubolare in materiale composito e relativo procedimento di realizzazione di detto corpo tubolare
AT513321A1 (de) 2012-08-16 2014-03-15 Bosch Gmbh Robert Gewindeverbindung zum Verbinden von Hochdruckmedium führenden Komponenten
CN104482199A (zh) * 2014-11-03 2015-04-01 无锡市百顺机械厂 油缸内油缸盖防松结构
WO2023274432A1 (fr) * 2021-06-28 2023-01-05 Bümach Engineering International B.V. Cylindre de travail et son procédé de production

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012008998U1 (de) 2012-09-19 2014-01-09 Bümach Engineering International B.V. Arbeitszylinder
DE202012009001U1 (de) 2012-09-19 2014-01-15 Bümach Engineering International B.V. Arbeitszylinder
WO2014044240A1 (fr) 2012-09-19 2014-03-27 Bümach Engineering International B. V. Vérin
DE202016007691U1 (de) * 2016-12-21 2018-03-22 Bümach Engineering International B.V. Schraubarbeitszylinder
US10865815B2 (en) 2016-12-21 2020-12-15 Buemach Engineering International B.V. Screw-threaded working cylinder

Also Published As

Publication number Publication date
HK1018497A1 (en) 1999-12-24
EP0880652A1 (fr) 1998-12-02
PL182356B1 (pl) 2001-12-31
CN1088806C (zh) 2002-08-07
WO1997029287A1 (fr) 1997-08-14
US6196112B1 (en) 2001-03-06
HUP9901415A3 (en) 2000-02-28
JP3342494B2 (ja) 2002-11-11
CA2245764C (fr) 2002-10-08
JPH11506190A (ja) 1999-06-02
RU2150615C1 (ru) 2000-06-10
CZ296713B6 (cs) 2006-05-17
CN1210578A (zh) 1999-03-10
DE59708068D1 (de) 2002-10-02
PL328404A1 (en) 1999-01-18
DE29602088U1 (de) 1996-04-04
HUP9901415A1 (hu) 1999-08-30
CZ240698A3 (cs) 1999-05-12
HU220939B1 (en) 2002-06-29
CA2245764A1 (fr) 1997-08-14
ATE223001T1 (de) 2002-09-15

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