EP3417178B1 - Vérin à double effet avec deux tiges pour une presse d'extrusion - Google Patents

Vérin à double effet avec deux tiges pour une presse d'extrusion Download PDF

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Publication number
EP3417178B1
EP3417178B1 EP17702621.8A EP17702621A EP3417178B1 EP 3417178 B1 EP3417178 B1 EP 3417178B1 EP 17702621 A EP17702621 A EP 17702621A EP 3417178 B1 EP3417178 B1 EP 3417178B1
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EP
European Patent Office
Prior art keywords
cylinder
bypass
synchronous
synchronous cylinder
pressure chambers
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.)
Active
Application number
EP17702621.8A
Other languages
German (de)
English (en)
Other versions
EP3417178A1 (fr
Inventor
Hermann-Josef Klingen
Uwe Muschalik
Ekhard Siemer
Karl Herrmann CLAASEN
Valentin Gala Losada
Andreas WERSHOFEN-CROMBACH
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.)
SMS Group GmbH
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SMS Group GmbH
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Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3417178A1 publication Critical patent/EP3417178A1/fr
Application granted granted Critical
Publication of EP3417178B1 publication Critical patent/EP3417178B1/fr
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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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/021—Valves for interconnecting the fluid chambers of an actuator
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/202—Externally-operated valves mounted in or on the actuator
    • 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
    • F15B2211/7054—Having equal piston areas

Definitions

  • a hydraulic fluid connection is preferably provided with a hydraulic fluid line which pierces the cylinder lock and / or the cylinder head support of the corresponding end side.
  • the hydraulic fluid line with the hydraulic fluid connection is in fluid connection with the corresponding pressure chamber and supplies it with hydraulic fluid.
  • FIG 4 shows an alternative embodiment of a synchronous cylinder 1 according to the invention, in which, unlike in the first embodiment according to FIGS Figures 1 to 3 a bypass device 50 in the form of a bypass line 103 is arranged outside the housing and connects the pressure chambers 42 to one another via respective bypass valves 52.
  • the bypass line 103 replaces the annular gap between the outer cylinder 10 and the inner cylinder 20 according to the embodiments of FIG Figures 1 to 3 .
  • the bypass line 103 has the same technical effects as the annular gap 51 according to the embodiments of FIG Figures 1 to 3 .
  • the Figure 5 shows an embodiment of a synchronous cylinder 1 not according to the invention in a side view and one along the line AA from Figure 5 sectioned frontal view. From the front view according to Figure 5b it can be seen that four bypass lines 103a-d are arranged inside the housing of the synchronous cylinder 1 outside the outer cylinder 10. These bypass lines 103a-d replace the bypass line 103 according to FIG Figure 4 in its entirety the annular gap 51 according to the embodiments of FIG Figures 1 to 3 .
  • the bypass lines 103a-d connect in the same way as the bypass line 103 according to FIG Figure 4 the pressure chambers 42 of the synchronous cylinder 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)
  • Press Drives And Press Lines (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (11)

  1. Cylindre synchrone (1), de préférence destiné à une installation d'extrusion, qui comprend un cylindre externe (10), un cylindre interne (20) inséré dans le premier cité et disposé en position concentrique par rapport à ce dernier, un piston de travail (41) du type à action double, que l'on prévoit en coulissement dans le cylindre interne, et un mécanisme de dérivation (50) qui comprend au moins une soupape de dérivation (52) ; dans lequel le piston de travail (41) subdivise le cylindre interne (20) en deux chambres de pression (412) et peut être sollicité par les deux chambres de pression (42) avec un fluide hydraulique ; dans lequel le mécanisme de dérivation (50) est conçu d'une manière telle que l'on obtient, dans une position de dérivation de la soupape de dérivation (52), une liaison par fluide entre les deux chambres de pression (42) par l'intermédiaire d'une liaison directe, de préférence par l'intermédiaire d'au moins un conduit de dérivation, et d'une manière telle que, dans une position de travail de la soupape de dérivation (52), une telle liaison par fluide est inexistante, caractérisé en ce que le mécanisme de dérivation (50) présente deux soupapes de dérivation (52) qui sont prévues sur les côtés opposés du piston de travail (41).
  2. Cylindre synchrone (1) selon la revendication 1, caractérisé en ce que la liaison directe, de préférence le conduit de dérivation, est disposé entre le cylindre externe et le cylindre interne du cylindre synchrone (1).
  3. Cylindre synchrone (1) selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le conduit de dérivation est disposé à l'extérieur du logement du cylindre synchrone.
  4. Cylindre synchrone (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une des soupapes de dérivation (52) est mise en état de précontrainte au moyen d'un ressort (55) dans la position de dérivation ou dans la position de travail, de préférence dans la position de dérivation.
  5. Cylindre synchrone (1) selon la revendication 4, caractérisé en ce que le ressort (55) est prévu pour le repositionnement ou pour la mise en état de précontrainte de la soupape de dérivation (52) en partie ou complètement dans le cylindre externe, de préférence complètement au sein du cylindre synchrone (1) qui se termine, du côté de la tête, par l'intermédiaire de tronçons de tête (30).
  6. Cylindre synchrone (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une des soupapes de dérivation (52) peut être activée par voie hydraulique.
  7. Cylindre synchrone (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le cylindre externe (10) est fermé, au niveau de ses tronçons terminaux, respectivement avec un dispositif de fermeture de cylindre (33), le cylindre interne (20) est fixé au niveau de ses tronçons terminaux respectivement au moyen d'un support de tête de cylindre (31) par rapport au cylindre externe (10), et l'on prévoit, aux deux extrémités, respectivement un raccord pour fluide hydraulique (32') et un conduit pour fluide hydraulique (32) qui est inséré dans le dispositif de fermeture de cylindre (33) et/ou dans le support de tête cylindre (31) du côté correspondant.
  8. Cylindre synchrone (1) selon la revendication 7, caractérisé en ce que les deux supports de tête de cylindre (31) présentent respectivement un ou plusieurs conduits de dérivation (53) qui génèrent une liaison par fluide entre les chambres de pression (42) et la fente annulaire (51).
  9. Cylindre synchrone (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les soupapes de dérivation (52) entrent en contact aussi bien avec la tige de piston (40) qu'avec le support de tête de cylindre correspondant (31), en fermant la liaison par fluide entre la chambre de pression correspondante (42) et le conduit de dérivation correspondant (53) dans la position de travail et en l'ouvrant dans la position de dérivation.
  10. Mécanisme de déformation, de préférence installation de presse, installation d'extrusion ou installation de laminage à anneaux, qui comprend un ou plusieurs cylindres synchrones (1) selon l'une quelconque des revendications précédentes.
  11. Mécanisme de déformation selon la revendication 10, caractérisé en ce que l'on prévoit un ou plusieurs moteurs électriques qui sont destinés à un ajustement du cylindre synchrone (1).
EP17702621.8A 2016-02-16 2017-02-01 Vérin à double effet avec deux tiges pour une presse d'extrusion Active EP3417178B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016202357 2016-02-16
DE102016214767.6A DE102016214767A1 (de) 2016-02-16 2016-08-09 Gleichgangzylinder für Strangpressanlagen
PCT/EP2017/052135 WO2017140499A1 (fr) 2016-02-16 2017-02-01 Cylindre à pas constant pour installations d'extrusion

Publications (2)

Publication Number Publication Date
EP3417178A1 EP3417178A1 (fr) 2018-12-26
EP3417178B1 true EP3417178B1 (fr) 2021-04-14

Family

ID=59410422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17702621.8A Active EP3417178B1 (fr) 2016-02-16 2017-02-01 Vérin à double effet avec deux tiges pour une presse d'extrusion

Country Status (9)

Country Link
US (1) US10670052B2 (fr)
EP (1) EP3417178B1 (fr)
JP (1) JP6851388B2 (fr)
KR (1) KR102166035B1 (fr)
CN (1) CN108603521B (fr)
DE (1) DE102016214767A1 (fr)
ES (1) ES2880351T3 (fr)
TW (1) TW201738010A (fr)
WO (1) WO2017140499A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019007754A1 (de) * 2019-11-08 2021-05-12 Bümach Engineering International B.V. Arbeitszylinder und Verfahren zu dessen Herstellung
CN113389767B (zh) * 2021-07-23 2024-06-21 中国科学院合肥物质科学研究院 一种长冲程大缸径结构双作用式气动执行器及其控制系统
US11867072B2 (en) * 2021-12-06 2024-01-09 Woodward, Inc. On-line verifiable trip and throttle valve actuator
EP4445031A1 (fr) * 2021-12-06 2024-10-16 Woodward, Inc. Actionneur à fluide

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JPS5416078A (en) * 1977-07-06 1979-02-06 Nomura Yoshihisa Two stages speed changable plural motion cylinder
JPS5872509U (ja) * 1981-11-11 1983-05-17 オカダ鑿岩機株式会社 油圧シリンダの破損防止装置
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DE3801684A1 (de) * 1988-01-21 1989-07-27 Huperz Adalbert Hydraulik - zylinder mit formstabiler kolbenfuehrung
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Also Published As

Publication number Publication date
ES2880351T3 (es) 2021-11-24
DE102016214767A1 (de) 2017-08-17
CN108603521B (zh) 2021-06-04
US20190017522A1 (en) 2019-01-17
TW201738010A (zh) 2017-11-01
JP6851388B2 (ja) 2021-03-31
JP2019511681A (ja) 2019-04-25
WO2017140499A1 (fr) 2017-08-24
KR20180098346A (ko) 2018-09-03
US10670052B2 (en) 2020-06-02
EP3417178A1 (fr) 2018-12-26
KR102166035B1 (ko) 2020-10-15
CN108603521A (zh) 2018-09-28

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