EP0190528A1 - Pneumatische oder hydraulische Stelleinrichtung - Google Patents

Pneumatische oder hydraulische Stelleinrichtung Download PDF

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Publication number
EP0190528A1
EP0190528A1 EP85402555A EP85402555A EP0190528A1 EP 0190528 A1 EP0190528 A1 EP 0190528A1 EP 85402555 A EP85402555 A EP 85402555A EP 85402555 A EP85402555 A EP 85402555A EP 0190528 A1 EP0190528 A1 EP 0190528A1
Authority
EP
European Patent Office
Prior art keywords
closure part
piston
pneumatic
liners
cylindrical jacket
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.)
Withdrawn
Application number
EP85402555A
Other languages
English (en)
French (fr)
Inventor
Daniel Bouteille
André Vergez
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique SA
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 La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Publication of EP0190528A1 publication Critical patent/EP0190528A1/de
Withdrawn legal-status Critical Current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
    • F15B15/1428—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

Definitions

  • This mode of construction of the jacks is mainly implemented when it is desired that the nature of the internal jacket be different from that of the external jacket, so that the latter protects against impacts an internal jacket made, for example, of a material noble of thin thickness, such as stainless steel.
  • each of the supply orifices in the vicinity of the closing pieces, for example, on the wall of the cylinder or on said closing pieces.
  • the invention proposes to remedy these drawbacks or to reduce their effects insofar as, if an arrangement of the connection points is still possible, it is however excluded to do without fittings and pipes.
  • the desired result is achieved thanks to the fact that one of the closure parts receives the two orifices and supply fittings, and that one of them is connected directly by a channel to the most volume. neighbor, while the other is connected to the most distant volume by following a transfer path circulating in the interval placed between the two liners.
  • a jack V according to the invention comprises a first internal cylindrical jacket 1 and a second cylindrical jacket 2, surrounding the first.
  • the two closure parts 7, 10 are used here, and in a nonlimiting manner, to support longitudinal tie rods 13, 14, 15, see also FIG. 2, which apply these parts against the ends of at least one of the shirts; these tie rods which are advantageously placed between the two shirts could alternatively circulate outside.
  • the closure parts each have an annular groove 16, respectively 17, the cylindrical walls 18, 19, 20 of which are provided with seals, for example O-rings, in order to ensure the fluid seals towards the outside and towards the interior, in cooperation with the surfaces 24 and 5 of the liners, see FIGS. 1, 1a and 3.
  • the closure piece 10 has two channels 25, 26 which are connected to two supply fittings 27, 28 fixed on it and whose orifices preferably open on the face 10a, these fittings respectively receiving one of the two pipes of supply 29, 30.
  • a first channel 25 opens opposite an annular space 31 which results from the interval -i- separating the two liners and communicates with the first volume 8 thanks to the presence of one or more clearances 32, 32 'made at the right end of the first jacket 1, while a second channel 26 opens directly into the second volume 11, see Figures 1 and 2.
  • the longitudinal tie rods 13, 14, 15 circulate in the annular space 31, which means that the sealing means of their ends must be used.
  • support such as the seal 34 which cooperates with the head 35 and the part 10, and the non-through threaded hole 36, which cooperates with the threaded end 37.
  • Another clearance operating in the same way as the previous one, could be formed by a local recess 32 a , respectively 32 b of the first part 7 a , which connects the space 31 and the volume 8 , this embodiment a then requiring no removal of material on the right end of the first jacket la.
  • the two fittings are fixed on the same closure part 10 which is opposite to the zone 40 where any members 41 linked to the rod 4 move, see FIG. 1 .
  • cylindrical channel 25 can take an aerodynamic transition form, which will gradually connect a round section 33 of the channel 25 defined by the connector 27 to a larger section 39 taking the form of a bean as seen in Figure 5.
  • the space 31 means for controlling the passage of the fluid, see FIG. 8, where the space 31a is occupied transversely by a ring 60 sealed on the jacket l f , and having elastic sealing means 62 acting as a one-way valve in direction H 1 , by cooperating with the external jacket 2 f ; calibrated orifices 68 of the ring act as flow limiters in the direction A 2 , and limit the speed of movement of the piston in the corresponding direction.
  • screw flow adjustment means such as 63 which more or less seal a single orifice 68.
  • this valve 68 ′ could either be placed in, or cooperate with a longitudinal extension 16 g of the annular groove 16 f of the part 7 c leading to the clearance 32 c , as seen in FIG. 9 .
  • a flow adjustment screw 70 cooperates with the transfer channel 48a of a part 7 d and the non-return valve 71, which is fixed to the outside of the jacket 1 c , plugs holes 72 placed at the end of the inner jacket 1.
  • This valve 71 can advantageously be arranged all around the jacket and be held by a ring 73 serving to hoop it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP85402555A 1984-12-28 1985-12-19 Pneumatische oder hydraulische Stelleinrichtung Withdrawn EP0190528A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8419994A FR2575527B1 (fr) 1984-12-28 1984-12-28 Verin pneumatique ou hydraulique
FR8419994 1984-12-28

Publications (1)

Publication Number Publication Date
EP0190528A1 true EP0190528A1 (de) 1986-08-13

Family

ID=9311086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402555A Withdrawn EP0190528A1 (de) 1984-12-28 1985-12-19 Pneumatische oder hydraulische Stelleinrichtung

Country Status (2)

Country Link
EP (1) EP0190528A1 (de)
FR (1) FR2575527B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709173A1 (de) * 1987-03-20 1988-09-29 Knorr Bremse Ag Doppeltwirkender druckmittelzylinder
WO1991013791A1 (de) * 1990-03-06 1991-09-19 Zahnradfabrik Friedrichshafen Ag Hydraulisches zahnstangenlenkgetriebe
EP0903501A2 (de) * 1997-09-23 1999-03-24 Luciano Migliori Doppeltwirkende Hydraulikzylinder mit einseitiger Druckmittelzufuhr
CN107771251A (zh) * 2015-06-11 2018-03-06 Smc株式会社 流体压力缸
US10605275B2 (en) 2015-06-11 2020-03-31 Smc Corporation Fluid pressure cylinder
US10612570B2 (en) 2015-06-11 2020-04-07 Smc Corporation Fluid pressure cylinder
US10662982B2 (en) 2015-06-11 2020-05-26 Smc Corporation Fluid pressure cylinder
US10670053B2 (en) 2015-06-11 2020-06-02 Smc Corporation Fluid pressure cylinder
US10677270B2 (en) 2015-06-11 2020-06-09 Smc Corporation Fluid pressure cylinder

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT223083Z2 (it) * 1990-06-20 1995-06-09 Camozzi Pneumatici Spa Cilindri pneumatici con regolatore di flusso incorporato
BE1011346A3 (nl) * 1997-09-01 1999-07-06 Dhollander Jan Jozef Prudence Verbeterde hydraulische cilinder.
KR102531495B1 (ko) * 2018-09-13 2023-05-11 에스엠시 가부시키가이샤 유체압 실린더

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1280935A (fr) * 1961-01-31 1962-01-08 Armstrong Patents Co Ltd Perfectionnements aux servo-mécanismes hydrauliques

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1337675A (fr) * 1961-10-27 1963-09-13 Installation de cylindre hydraulique et pneumatique à double effet
FR1362400A (fr) * 1963-07-17 1964-05-29 Rasmussen & Co V K Perfectionnements aux cylindres pneumatiques ou hydrauliques à double effet
CH623797A5 (en) * 1978-08-08 1981-06-30 Paul Henriod Hydraulic jack
DE2939422A1 (de) * 1979-09-28 1981-04-16 Helmut Dipl.-Ing. Dr. 7064 Remshalden Wiesner Zylinderblock

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1280935A (fr) * 1961-01-31 1962-01-08 Armstrong Patents Co Ltd Perfectionnements aux servo-mécanismes hydrauliques

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709173A1 (de) * 1987-03-20 1988-09-29 Knorr Bremse Ag Doppeltwirkender druckmittelzylinder
WO1991013791A1 (de) * 1990-03-06 1991-09-19 Zahnradfabrik Friedrichshafen Ag Hydraulisches zahnstangenlenkgetriebe
EP0903501A2 (de) * 1997-09-23 1999-03-24 Luciano Migliori Doppeltwirkende Hydraulikzylinder mit einseitiger Druckmittelzufuhr
EP0903501A3 (de) * 1997-09-23 2000-06-07 Luciano Migliori Doppeltwirkende Hydraulikzylinder mit einseitiger Druckmittelzufuhr
CN107771251A (zh) * 2015-06-11 2018-03-06 Smc株式会社 流体压力缸
CN107771251B (zh) * 2015-06-11 2020-02-18 Smc株式会社 流体压力缸
US10605275B2 (en) 2015-06-11 2020-03-31 Smc Corporation Fluid pressure cylinder
US10612570B2 (en) 2015-06-11 2020-04-07 Smc Corporation Fluid pressure cylinder
US10662981B2 (en) 2015-06-11 2020-05-26 Smc Corporation Fluid pressure cylinder
US10662982B2 (en) 2015-06-11 2020-05-26 Smc Corporation Fluid pressure cylinder
US10670053B2 (en) 2015-06-11 2020-06-02 Smc Corporation Fluid pressure cylinder
US10677270B2 (en) 2015-06-11 2020-06-09 Smc Corporation Fluid pressure cylinder

Also Published As

Publication number Publication date
FR2575527B1 (fr) 1988-08-26
FR2575527A1 (fr) 1986-07-04

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Inventor name: VERGEZ, ANDRE

Inventor name: BOUTEILLE, DANIEL