EP0098436B1 - Pneumatischer Stellantrieb - Google Patents

Pneumatischer Stellantrieb Download PDF

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Publication number
EP0098436B1
EP0098436B1 EP83105967A EP83105967A EP0098436B1 EP 0098436 B1 EP0098436 B1 EP 0098436B1 EP 83105967 A EP83105967 A EP 83105967A EP 83105967 A EP83105967 A EP 83105967A EP 0098436 B1 EP0098436 B1 EP 0098436B1
Authority
EP
European Patent Office
Prior art keywords
housing
diaphragm plate
grooves
recesses
supporting faces
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
Application number
EP83105967A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0098436A1 (de
Inventor
Herbert Paetzel
Wilhelm V. D. Weydt
Ulrich Hannen
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.)
HP and HP Chemie-Stellglieder GmbH
Original Assignee
HP and HP Chemie-Stellglieder 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 HP and HP Chemie-Stellglieder GmbH filed Critical HP and HP Chemie-Stellglieder GmbH
Publication of EP0098436A1 publication Critical patent/EP0098436A1/de
Application granted granted Critical
Publication of EP0098436B1 publication Critical patent/EP0098436B1/de
Expired 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
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type

Definitions

  • the invention relates to a pneumatic actuator having a housing composed of a shell-like base part and a shell-like cover part, in which a membrane plate is arranged, which is connected to the side walls of the housing via a gas-tight membrane and in the housing in the direction of an attached to it, through the bottom part of the housing sealingly guided output spindle can be moved back and forth, gas supply nozzles are arranged in the bottom part and / or in the cover part and in the housing are arranged on the one hand on the membrane plate and on the other hand on the bottom part or cover part, the restoring forces generating coil springs are arranged.
  • Such pneumatic actuators are known per se (e.g. DE-A-1 911 002). They are used, for example, to drive valves, slides and other actuators.
  • the object underlying the invention was to simplify a pneumatic actuator of the type mentioned in such a way that a change in the restoring forces is possible without the coil springs arranged in the housing needing to be replaced.
  • the invention makes use of the knowledge that the change in the restoring forces can also be achieved by changing the pretension with which the coil springs are acted upon in the housing.
  • This is achieved according to the invention in that for each coil spring at least on one support side at least two contact surfaces are arranged, which have a predetermined distance from each other, whereby it is achieved that different restoring forces are already present in the idle state of the actuator, depending on. on which support surfaces one or more of the coil springs are arranged in the housing.
  • the restoring forces generated in this way at rest correspond to different points on the spring characteristic, depending on the selected contact surface.
  • a change in the restoring forces can accordingly be achieved by converting one or more springs from one bearing surface to a bearing surface located in another position without the need to replace, remove or add springs.
  • the support surfaces can be arranged in an extremely space-saving manner on the membrane plate in the housing.
  • the pneumatic actuator shown in Fig. 1 has a housing which is composed of a shell-like bottom part 1 and a shell-like cover part 2, the connection of the two housing parts 1 and 2 on the flanges 1a and 2a via screw connections 1b.
  • a diaphragm plate 3 is arranged, to which a spindle 5 is fastened via a screw connection 5a, 5b.
  • the spindle 5 is sealingly guided through the base part 1 and connected to an actuator in a manner not shown.
  • a membrane 4 is arranged, which is connected to the side walls of the housing in such a way that the outer edge of the membrane 4 is clamped between the flanges 1a and 2a. In this way, the diaphragm plate 3 can be moved up and down in the direction of the spindle 5 in the housing.
  • a gas supply nozzle 6 is arranged in the base part 1 and a gas supply nozzle 7 is arranged in the cover part 2.
  • the diaphragm plate 3 moves upwards or downwards, in each case against the restoring forces which are generated by coil springs 8 which are arranged in the housing and on the one hand on the diaphragm plate 3 and on the other hand support either on the bottom part 1 or on the cover part 2.
  • This is due to the appropriate design of the membrane plate ensured that this can be arranged in two different positions in the housing. These two layers are shown in FIG. 1 in the left and right half of the figure. In the left half of Fig.
  • the diaphragm plate 3 is arranged so that the diaphragm 4, which is fastened to the diaphragm plate by means of a screw 5c screwed into a bore 5b of the diaphragm plate 3, is located on the top and the coil springs 8 are located on the bottom part 1 support.
  • the spindle 5 is screwed into a bore 5a on the side of the diaphragm plate 3 carrying the support surfaces.
  • the diaphragm plate 3 is inserted into the housing in such a way that the diaphragm 4 is located on its side facing the bottom part 1 and is fastened together with the end of the spindle 5 to the bore 5b in the diaphragm plate 3.
  • the coil springs 8 are supported on the one hand on the diaphragm plate 3 and on the other hand on the cover part 2.
  • the circular membrane plate has, on the side on which the coil springs 8 are to be supported, circumferentially penetrating, essentially circular grooves 9 and circular recesses 10.
  • the recesses 10 have essentially circular graduations 10a on their edge.
  • the base of the recesses 10 corresponding to the base of the grooves 9 is at a greater distance from the upper surface E of the membrane plate 3 serving as a reference surface than the surface of the graduations 10a.
  • the coil spring is inserted more or less deeply in the diaphragm plate 3. From Fig. 1 it can be easily read that a coil spring 8, which rests on the bottom 9a of the grooves 9, causes a lower restoring force in the same position of the diaphragm plate 3 than if it rests on the surface 10a of the gradation of one of the recesses 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluid-Damping Devices (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
EP83105967A 1982-07-03 1983-06-18 Pneumatischer Stellantrieb Expired EP0098436B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3224905 1982-07-03
DE19823224905 DE3224905A1 (de) 1982-07-03 1982-07-03 Pneumatischer stellantrieb

Publications (2)

Publication Number Publication Date
EP0098436A1 EP0098436A1 (de) 1984-01-18
EP0098436B1 true EP0098436B1 (de) 1985-01-09

Family

ID=6167534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105967A Expired EP0098436B1 (de) 1982-07-03 1983-06-18 Pneumatischer Stellantrieb

Country Status (6)

Country Link
US (1) US4505188A (enExample)
EP (1) EP0098436B1 (enExample)
JP (1) JPS5923108A (enExample)
CA (1) CA1217099A (enExample)
DE (2) DE3224905A1 (enExample)
ES (1) ES8403579A1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557950B1 (fr) * 1984-01-10 1986-09-26 Joucomatic Sa Perfectionnements apportes aux vannes a commande par piston
JPS631902U (enExample) * 1986-06-20 1988-01-08
US4774874A (en) * 1987-03-26 1988-10-04 Carmeli Adahan Rolling diaphragm construction and piston-cylinder assembly including same particularly useful for suction or compression pumps
JPH0216805U (enExample) * 1988-07-20 1990-02-02
DE9110959U1 (de) * 1991-06-06 1991-10-31 Arca Regler GmbH, 4154 Tönisvorst Pneumatischer Membranstellantrieb
DE4305631C2 (de) * 1993-02-24 1997-03-20 Hans Bender Druckmittelgesteuerter Antrieb
USD358454S (en) 1993-07-22 1995-05-16 Arca Regler Gmbh Control valve
US5507217A (en) * 1994-09-30 1996-04-16 Indian Head Industries, Inc. Perforate diaphragm alignment system for spring brake actuators
US6957806B2 (en) * 2002-12-12 2005-10-25 The Modern Group Limited Airspring assembly
JP5973197B2 (ja) * 2012-03-23 2016-08-23 旭有機材株式会社 ピストン式作動流体圧アクチュエータ、および制御弁
DE112014007209T5 (de) * 2014-11-25 2017-08-03 Mitsubishi Electric Corporation Pneumatischer Antrieb
US10077850B2 (en) * 2016-05-03 2018-09-18 Borgwarner Inc. Reverse taper piston for pneumatic actuators

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172694A (en) * 1939-09-12 Aneroid altimetric device with a
CH84325A (de) * 1919-03-03 1920-03-01 Autoraeder Ges M B H Lager für Schraubenfedern
FR839045A (fr) * 1937-12-01 1939-03-22 Soc Fr Regulateurs Arca Perfectionnement au relais de commande à fluide
FR1041709A (fr) * 1951-04-10 1953-10-26 Perfectionnements aux dispositifs limiteurs de pression
US2883998A (en) * 1954-01-14 1959-04-28 Frances J Broughton Vacuum control valve
US2950739A (en) * 1957-03-06 1960-08-30 Chaplin Fulton Mfg Co Diaphragm motor
US2966143A (en) * 1957-07-18 1960-12-27 Powers Regulator Corp Pneumatic control system
US3241805A (en) * 1962-10-23 1966-03-22 Powers Regulator Co Valve
US3166251A (en) * 1963-10-28 1965-01-19 Sr William J Stitt Sprinkler and valve
GB1231579A (enExample) * 1967-11-01 1971-05-12
US3448659A (en) * 1967-11-16 1969-06-10 Gen Motors Corp Piloted vacuum actuator
DE1911002B2 (de) * 1969-03-04 1974-01-10 Samson Apparatebau Ag, 6000 Frankfurt Ventil od.dgl. mit umkehrbarem Druckmittelantrieb
US3866521A (en) * 1971-05-31 1975-02-18 Ernesto Juan Weber Control device
US3815471A (en) * 1972-03-30 1974-06-11 J Kobelt Self-adjusting linear actuator
US3862751A (en) * 1972-09-28 1975-01-28 Bernard L Schwaller Dual stage compressor spring
DE2257690A1 (de) * 1972-11-24 1974-05-30 Walter Beck Kg Kontroll Und Fe Hydraulisch oder druckluftbetaetigte geschlossene membran-hub-dose
DE2353168A1 (de) * 1973-10-24 1975-04-30 Gulde Regelarmaturen Kg Pneumatischer antrieb
US4046167A (en) * 1976-02-06 1977-09-06 Kawneer Company, Inc. Mechanical accumulator
DE2821676A1 (de) * 1978-05-18 1979-11-22 Gec Sunvic Regler Gmbh Pneumatisches geraet mit einer ringfoermigen druckbeaufschlagten membran
US4258611A (en) * 1979-05-14 1981-03-31 Schmelzer Corporation Vacuum motor for carburetors
GB2091807B (en) * 1981-01-26 1985-01-03 British Gas Corp Fluid operated actuator for a flow control valve

Also Published As

Publication number Publication date
ES523783A0 (es) 1984-04-01
JPS5923108A (ja) 1984-02-06
EP0098436A1 (de) 1984-01-18
DE3224905A1 (de) 1984-01-05
ES8403579A1 (es) 1984-04-01
DE3360045D1 (en) 1985-02-21
JPH0313442B2 (enExample) 1991-02-22
CA1217099A (en) 1987-01-27
US4505188A (en) 1985-03-19

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