EP0964165B1 - Cylindre pneumatique pour l'entrâinement d'un élément réglable - Google Patents

Cylindre pneumatique pour l'entrâinement d'un élément réglable Download PDF

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Publication number
EP0964165B1
EP0964165B1 EP99111265A EP99111265A EP0964165B1 EP 0964165 B1 EP0964165 B1 EP 0964165B1 EP 99111265 A EP99111265 A EP 99111265A EP 99111265 A EP99111265 A EP 99111265A EP 0964165 B1 EP0964165 B1 EP 0964165B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
bore
connection
cross
pressurising medium
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
EP99111265A
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German (de)
English (en)
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EP0964165A3 (fr
EP0964165A2 (fr
Inventor
Andreas Grasl
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Individual
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Individual
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Publication of EP0964165A3 publication Critical patent/EP0964165A3/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
    • 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
    • F15B15/08—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

Definitions

  • the invention relates to an air cylinder for actuation an adjustable element, in particular a smoke flap in a smoke and heat exhaust system, according to the generic term of claim 1.
  • an air cylinder is e.g. out EP-A-363 575.
  • the invention relates to both simple compressed air cylinders, in which a double-sided piston by the pressure of the Pressure fluid in one of the cylinder spaces adjacent to the piston held in one of two possible end positions is, as well as preferably a compressed air cylinder with a locking device, which reached an end position of the piston and the piston rod connected to it even in the absence Pressure holds.
  • the invention can be used with Double stroke cylinders, in which except the two end positions the piston rod at least one not fully extended position the piston rod is adjustable. The latter is through an additional locking piston controlled with a reversing valve reached, which is displaceable coaxially to the piston rod and limited a partial stroke of the piston rod (EP 0 363 575 A1).
  • Pressure medium i.e. Compressed air
  • the bolt pressure space adjacent to the cylinder space feed from two pressure medium connections.
  • the pressure medium connections can be threaded blind holes especially in a cylinder head or in an opposite one Be cylinder bottom drilled.
  • At least one of the two Blind holes can be made through a cross hole with a cylinder pressure chamber stay in contact.
  • Two with these pressure medium connections connected pressure medium connection fittings one Compressed air line can also be used for swiveling suspension of the air cylinder.
  • the cylinder head and the cylinder base on the compressed air cylinder is interchangeable , it is sufficient to connect the two pressure medium connections the cylinder head or the cylinder base to provide depending on the arrangement of the cylinder head and the cylinder bottom in the Compressed air cylinder a suspension optionally in the upper part or in the lower part of the air cylinder.
  • the pressure medium depending on its control in the two lines that over Pressure medium connection fittings in the pressure medium connections open, either from a pressure medium connection via holes in the cylinder head or cylinder bottom the neighboring one Piston chamber and optionally bolt pressure chamber are supplied or is from the other pressure medium connection via an additional one fluid-conducting connection section to the to supply distant piston chamber and bolt pressure chamber.
  • the additional pressure medium Connection section through the space between a double pipe formed as a cylinder, but this is a considerable additional mass represents.
  • one of the pressure medium connections via an additional outer line with the remote Piston chamber can be connected to the bolt pressure chamber. This however requires increased assembly effort.
  • each profile one Has through hole (DE 39 23 063 A1). Through the through holes can convey working media such as compressed air become. The connection of these through holes to pressure medium connections and to cylinder rooms is not disclosed.
  • the invention has for its object the suspension of the compressed air cylinder with supply of the pressure medium as versatile as possible, but uncomplicated, light can be assembled and designed with low mass.
  • the compressed air cylinder is thus in any longitudinal position Direction of the main longitudinal side of the air cylinder Profiles with an approximately T-shaped cross section, in particular can also be suspended in the middle of the compressed air cylinder.
  • Profiles with an approximately T-shaped cross-section are advantageous combined with a clamping profile, which both profiles embraces.
  • the clamping profile is also used for Pressure medium supply from the pressure medium connections, which the Take up the pressure medium connection fitting of a line to the Cylinder rooms and any associated with them Riegel pressure chambers. It is not necessary that the Air cylinder is designed as a double jacket cylinder, because the pressure medium transmission from the connection holes over each a cross hole in the profiles and one of the through holes in the profiles and one in each reaching transverse bore in a counter cylinder wall can.
  • the through holes in the profiles with an approximately T-shaped cross-section to the pressure medium line from one end of the compressed air cylinder to use, on which a cylinder head or a cylinder bottom in in a known manner, two blind holes, each with a thread has as a pressure medium connection.
  • two blind holes each with a thread has as a pressure medium connection.
  • it can have an annular cross section, so that it has the counter cylinder with those molded from its wall
  • This clamping profile can also be called a jacket profile.
  • the clamping profile has an approximately C-shaped cross section has, at the ends of this cross section each one of the both approaches are formed with the inner counter profiles, on the approximately T-shaped profiles of the cylinder barrel are displaceable and lockable and which are the connection bores for screwing in a pressure medium connection fitting exhibit.
  • Air cylinders are the pressure medium connection fittings the lines or head tubes with a swivel screw connection equipped with a shaft as a bearing for the pivotable mounting of the compressed air cylinder.
  • a sink is formed coaxially with the connection bore.
  • the shaft merges into a thinner threaded bush, into the threaded connection hole in the clamping profile can be screwed in.
  • a hole is through the threaded bush and guided the shaft coaxially and delivers a connection represents the line end at which the pressure medium connection fitting is appropriate.
  • a ring cutting edge from the front the coaxial bore is shaped, whereby the ring cutting edge is suitable is on the flange of the profile with approximately T-shaped Cross section to get to the plant.
  • the flange and the Ring cutting edges act sealingly together, namely in any position in the longitudinal direction of the compressed air cylinder, in which the clamping profile is clamped.
  • the clamping profile is in the desired longitudinal position Set screws easily and securely on the flange of the shoulder clamped.
  • a grub screw is used for clamping on each side of the approach of the clamping profile in Longitudinal direction on both sides of the connection hole.
  • Fig. 1 is a compressed air cylinder with end position locking shown, which consists essentially of a cylinder head 1 and a cylinder base 2, which are connected to one another via a cylinder tube 3 are connected.
  • the cylinder head, the cylinder bottom and the cylinder tube include two cylinder spaces 4 and 5, which are separated from each other by a double-sided piston 6 are.
  • On the piston 6 are each one of the other opposite sides of a piston rod 7 and a locking bar 8 attached, each through a hole in the cylinder head or cylinder bottom are displaceable.
  • One of the two end positions of the piston rod is one Groove 9 provided, and the locking bar has a groove 10.
  • a locking piston 15 and 16 in the case of the balls 11 squeezed position to be held while the balls 12 are radially movable when the ball sleeve 14 is pushed back are and release the groove 10 of the locking bar 8.
  • the Locking piston 15, 16 assigned locking pressure chambers, in which the pressure shifting the locking piston builds up designated 17, 18.
  • Each of these bar pressure spaces 17, 18 stands over the unspecified bore in the cylinder head 1 or cylinder base 2 through which the piston rod 7 or Locking rod 8 is guided with the adjacent cylinder space 4 or 5 in a fluid-conducting connection, while the bolt pressure chamber 17 or 18 is sealed to the outside.
  • the two profiles 19, 20 are diametrically opposed to one another, what the cheapest geometry for pivoting suspension of the air cylinder on two generally designated 21, 22
  • Pressure medium connection fittings means in the pressure medium lines or control tubes 23, 24 open.
  • each of the profiles 19, 20 approximately T-shaped with a web 25 or 26 and a flange 27 or 28 is formed which is tangential to the jacket of the cylinder tube 3 is oriented.
  • In the longitudinal direction of each of the Profiles 19, 20 run through holes 29 and 30, respectively.
  • Each of the through holes is at its two ends 31-34, for example by one not shown in FIG. 1 Steel ball or other means, closed.
  • Fig. 3 The design of the cylinder tube 3 with the molded profiles 19, 20 is shown in detail in Fig. 3, in which this Cylinder tube is shown separately.
  • a clamping profile which over the cylinder tube shown with the profiles 19, 20 pushed and jammed with this can be drawn out in Fig. 4 and generally with Designated 35.
  • the clamping profile is essentially C-shaped. It can be produced in that from a clamping profile strand Longitudinal direction, which is perpendicular to the plane of the drawing, is proportional short pieces are separated.
  • the clamping profile has at each end of the C-shape on an extension 36 or 37, the internally similar in shape to the associated profile 19 or 20 of the cylinder tube 3 has a counter profile 37a or 38a.
  • the counter profile is directed towards the inside of the clamping profile Side open while there is one in the opposite direction flat surface with lateral grooves that are not in detail are designated. One protrudes radially into the flat surface oriented connection bore 39, 40 with thread.
  • Ring cutting edge 47 and 48 formed on the outside of the web of approximately T-shaped profile 19 or 20 is tight when the threaded shaft 44, 44a is screwed into the shoulder 36 or 37 is.
  • each profile 19 and 20 opens a transverse bore 49, 50 in the extension of the bore 45 or 46 in the pressure medium connection fitting 21 or 22.
  • the pressure medium i.e. here compressed air
  • This Pressure is through a transverse bore 51 and 52 in the wall of the cylinder tube 3 in one of the two cylinder spaces 4 or 5 and from these into the adjacent bolt pressure chamber 17 or 18 transmitted.
  • the control of the movement of the double-sided piston 6 and its locking in end positions is conventional depending on the controlled pressures of the pressure medium in line ends 23 and 24.
  • the virtual one Swivel axis of the compressed air cylinder can be in the longitudinal direction
  • the profiles 19, 20 can be set arbitrarily and finely by using pairs of threaded pins 53, 54 and 55, 56, with which each of the two approaches 36, 37 of the clamping profile can be clamped on the cylinder tube 3, then released the clamping profile can be freely moved in the longitudinal direction.
  • the embodiment of the compressed air cylinder according to FIG. 5 differs essentially from that discussed above Embodiment according to FIGS. 1-4, characterized in that no clamping profile is provided in the embodiment according to FIG. 5 is, but that here the pressure medium supply and suspension takes place on a cylinder base 60, which together with a Cylinder head 59 and a cylinder tube 61, the exterior of a Printing cylinder forms.
  • the cylinder bottom is here with one Pair of blind holes 62, 63 arranged in one plane, around the pressure medium inside the air cylinder to guide and hang the air cylinder. It can the pressure medium connection fittings according to FIG. 1 and FIG. 2 are used, which are not shown in Fig. 5.
  • the Pressure medium supply from the blind hole 63 to the cylinder space 5 and the bolt pressure chamber 18 takes place directly through a Bore 64, which is concentric with the blind hole 63 in a designated bore for the implementation of the locking bar 8 opens.
  • the T-shaped profiles of the cylinder tube can advantageously be used in at least two different versions of the compressed air cylinder.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Jigs For Machine Tools (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)
  • Fluid-Driven Valves (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Claims (8)

  1. Vérin pneumatique pour actionner un élément réglable, notamment d'un volet de gaz de fumées dans une installation d'extraction de fumées et de chaleur, comprenant
       un piston double face, qui peut coulisser dans un tube de cylindre avec deux chambres de cylindres, entre une tête de cylindre et un fond de cylindre, sous l'effet d'un fluide de pression amené au moyen de raccords de fluide de pression,
       de préférence au moins un dispositif de verrouillage, en liaison avec une tige de piston, dans une chambre de pression de verrouillage,
       ainsi que deux raccords de fluide de pression, qui sont disposés approximativement dans un même plan de section transversale du vérin pneumatique et de manière décalée selon un espacement périphérique autour du vérin pneumatique, de préférence de manière opposée,
       chacun des raccords de fluide de pression étant respectivement relié, par l'intermédiaire d'une liaison de transfert de fluide de pression renfermant un alésage transversal, à l'une des deux chambres de cylindre et, le cas échéant, à l'une des chambres de pression de verrouillage voisines desdites chambres de cylindres,
       caractérisé    en ce qu'à l'extérieur, sur le tube de cylindre (3, 61), sont formés deux profils (19, 10, 66, 67) s'étendant dans la direction longitudinale du tube de cylindre et présentant approximativement une section transversale en forme de T avec une âme (25, 26) et une aile (27, 28), en ce que chaque profil présente un alésage de passage (29, 30) s'étendant dans la direction longitudinale et fermé de manière étanche aux deux extrémités, en ce que l'alésage de passage (29, 30) forme une partie constitutive de la liaison de transfert de fluide de pression vers les chambres de cylindre, et en ce qu'un profil de serrage (35) enserrant les profils (19, 20) et au moins un tronçon périphérique d'enveloppe ainsi qu'un tronçon longitudinal d'enveloppe du tube de cylindre (3), et contenant les raccords de fluide de pression, peut être serré sur le tube de cylindre.
  2. Vérin pneumatique selon la revendication 1, caractérisé en ce que le profil de serrage (35) comporte à l'extérieur, des appendices (36, 37) avec des profils intérieurs conjugués (36a, 37a) s'étendant dans la direction longitudinale du tube de cylindre (3, 61) et présentant une forme similaire aux profils (19, 20) avec une section transversale sensiblement en forme de T, en ce que dans le profil de serrage (35) sont percés de manière décalée dans la direction périphérique du tube de cylindre (3, 61) et de préférence dans un même plan transversal, deux alésages de raccordement (39, 40) traversants qui forment les raccords de fluide de pression et qui sont adaptés à recevoir chacun un embout fileté (44, 44a) d'un raccord de branchement de fluide de pression (21, 22), et à entrer en communication ou en liaison avec l'alésage de passage (29, 30) par l'intermédiaire d'un alésage transversal (57, 58) respectif dans l'aile (27, 28) d'un des profils (19, 20), l'alésage transversal (57, 58) dans l'aile, l'alésage de raccordement (39, 40) dans l'appendice, ainsi que l'alésage transversal (51, 52) dans la paroi de cylindre (3) qui débouche dans l'alésage de passage (29, 30) du profil (19, 20) formant des tronçons ou parties de la liaison de transfert de fluide de pression vers l'une des deux chambres de cylindre (4, 5) et l'une des chambres de pression de verrouillage (17, 18).
  3. Vérin pneumatique selon la revendication 2, caractérisé en ce que le profil de serrage présente une section transversale de forme annulaire.
  4. Vérin pneumatique selon la revendication 3, caractérisé en ce que le profil de serrage (35) présente une section transversale approximativement en forme de C, et en ce qu'à chacune des extrémités de cette section transversale, est formé l'un des deux appendices (36, 37), des profils conjugués intérieurs (36a, 37a) et des alésages de raccordement (39, 40).
  5. Vérin pneumatique selon l'une des revendications 2-4, caractérisé en ce que pour le montage pivotant du vérin pneumatique, sur chacun des appendices (36, 37) du profil de serrage (35) est formé, sur le même axe que les alésages de raccordement (39, 40), un lamage en creux (43) destiné à recevoir un tourillon (42, 42a) du raccord de branchement de fluide de pression (21, 22).
  6. Vérin pneumatique selon la revendication 1, caractérisé en ce que la tête de cylindre (59) ou le fond de cylindre (60) comprend deux trous borgnes (62, 63) avec chacun un filetage de raccordement, en guise de raccords de fluide de pression, qui, par l'intermédiaire de canaux (64) sont en liaison de transfert de fluide de pression avec respectivement l'une des chambres de cylindre (4, 5) et avec l'une des chambres de pression de verrouillage (17, 18), et en ce que l'un des profils (66) avec alésage de passage est en liaison, par l'intermédiaire d'un premier alésage transversal (69) dans la paroi de cylindre (61), avec l'un des trous borgnes (62) dans la tête de cylindre ou le fond de cylindre (60), et, par l'intermédiaire d'un second alésage transversal (68) dans la paroi de cylindre (61), avec l'une des chambres de pression ou de cylindre (4).
  7. Vérin pneumatique selon la revendication 6, caractérisé en ce qu'en saillie sur la face frontale de l'embout fileté (44, 44a) du raccord de branchement de fluide de pression (21, 22), est formé un tranchant annulaire (47, 48) qui est en mesure de venir en appui sur l'aile (27, 28) du profil (19, 20) à section transversale approximativement en forme de T, autour d'un alésage central dans le raccord de branchement de fluide de pression.
  8. Vérin pneumatique selon l'une des revendications précédentes, caractérisé en ce que le profil de serrage (35) peut être serré et fixé sur l'aile (27, 28) de l'appendice, au moyen de vis pointeau (53-56).
EP99111265A 1998-06-12 1999-06-10 Cylindre pneumatique pour l'entrâinement d'un élément réglable Expired - Lifetime EP0964165B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19826129A DE19826129C2 (de) 1998-06-12 1998-06-12 Druckluftzylinder zur Betätigung eines einstellbaren Elements, insbesondere einer Rauchabzugsklappe
DE19826129 1998-06-12

Publications (3)

Publication Number Publication Date
EP0964165A2 EP0964165A2 (fr) 1999-12-15
EP0964165A3 EP0964165A3 (fr) 2000-06-07
EP0964165B1 true EP0964165B1 (fr) 2003-11-05

Family

ID=7870644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111265A Expired - Lifetime EP0964165B1 (fr) 1998-06-12 1999-06-10 Cylindre pneumatique pour l'entrâinement d'un élément réglable

Country Status (5)

Country Link
EP (1) EP0964165B1 (fr)
AT (1) ATE253692T1 (fr)
DE (2) DE19826129C2 (fr)
ES (1) ES2205641T3 (fr)
PL (1) PL194669B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4273476B2 (ja) * 2000-02-18 2009-06-03 Ｓｍｃ株式会社 リニアアクチュエータ
DE10247809B3 (de) * 2002-10-14 2004-06-03 Rexroth Mecman Gmbh Kompakter Druckmittelzylinder mit Mittel zur Befestigung des Zylindergehäuses an einer Trägerkonstruktion
DE102004021843A1 (de) * 2004-05-04 2005-12-01 Bosch Rexroth Ag Steuerblock für einen Hydrozylinder
CN102305103B (zh) * 2011-08-17 2013-02-13 潍坊恒远油泵油嘴有限公司 一种空气动力发动机进气控制装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604075A (en) * 1946-04-17 1952-07-22 George G Naud Fluid pressure servomotor
US2761425A (en) * 1952-06-17 1956-09-04 Gen Motors Corp Reciprocatory fluid actuated device
FR2423711A1 (fr) * 1977-12-22 1979-11-16 Renault Raccord de branchement d'une canalisation sur un cylindre
FR2573490B1 (fr) * 1984-11-19 1988-08-26 Telemecanique Electrique Verin ayant un canal de transfert integre dans le cylindre
JPS61256005A (ja) * 1985-05-10 1986-11-13 Koganei Seisakusho:Kk シリンダ
AT386656B (de) * 1986-04-01 1988-09-26 Hoerbiger Pneumatic Gmbh Druckmittelbetaetigbarer arbeitszylinder
DE8812882U1 (de) * 1988-10-13 1989-02-16 Fa. Otto Grasl, 3452 Heiligeneich Druckluftzylinder mit Endlageverriegelung, insbesondere zur Betätigung von Rauchabzugsklappen
DE3923063C3 (de) * 1989-04-08 1998-06-10 Festo Ag & Co Kolben-Zylinder-Aggregat
DE4435983A1 (de) * 1994-10-08 1996-04-11 Zahnradfabrik Friedrichshafen Servozylinder, insbesondere für hydraulische Zahnstangenlenkungen

Also Published As

Publication number Publication date
DE19826129C2 (de) 2000-07-20
EP0964165A3 (fr) 2000-06-07
ES2205641T3 (es) 2004-05-01
PL333644A1 (en) 1999-12-20
DE59907595D1 (de) 2003-12-11
DE19826129A1 (de) 1999-12-23
ATE253692T1 (de) 2003-11-15
PL194669B1 (pl) 2007-06-29
EP0964165A2 (fr) 1999-12-15

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