DE2230492A1 - PNEUMATIC-HYDRAULIC PRESSURE CONVERTER - Google Patents

PNEUMATIC-HYDRAULIC PRESSURE CONVERTER

Info

Publication number
DE2230492A1
DE2230492A1 DE19722230492 DE2230492A DE2230492A1 DE 2230492 A1 DE2230492 A1 DE 2230492A1 DE 19722230492 DE19722230492 DE 19722230492 DE 2230492 A DE2230492 A DE 2230492A DE 2230492 A1 DE2230492 A1 DE 2230492A1
Authority
DE
Germany
Prior art keywords
piston
pressure converter
pneumatic
cylinder
compressed air
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.)
Pending
Application number
DE19722230492
Other languages
German (de)
Inventor
Horst Eissel
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.)
Stommel & Voos Stahlstempelfab
Original Assignee
Stommel & Voos Stahlstempelfab
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 Stommel & Voos Stahlstempelfab filed Critical Stommel & Voos Stahlstempelfab
Priority to DE19722230492 priority Critical patent/DE2230492A1/en
Publication of DE2230492A1 publication Critical patent/DE2230492A1/en
Pending legal-status Critical Current

Links

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/0725—Combined pneumatic-hydraulic systems with the driving energy being derived from a pneumatic system, a subsequent hydraulic system displacing or controlling the output element
    • 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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • F15B11/0325—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters the fluid-pressure converter increasing the working force after an approach stroke
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • 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
    • 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
    • F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press

Description

pneumatisch-hydraulischer Druckumset zer Die Erfindung betrifft einen pneumatisch-hydraulischen Druckumsetzer, wie solche aus einem pneumatisch beaufschlagten Kolben und einem koaxial zu letzterem angeordneten hydraulisch beaufschlagten Kolben bestehen, die in von einem gemeinsamen Gehäuse gebildeten, durch einen Zwischenboden voneinander getrennten Zylindern beweglich sind. pneumatic-hydraulic Druckumset zer The invention relates to a pneumatic-hydraulic pressure converter, such as those from a pneumatically operated Piston and a hydraulically actuated piston arranged coaxially to the latter exist, which are formed in by a common housing, through an intermediate floor separate cylinders are movable.

Derartige Druckumsetzer dienen zur Erhöhung des Druckes des hydraulischen Mediums. Bei bekannten Druckumsetzern wird das hydraulische Medium durch eine Druckmittelzuführungsleitung hindurch einer Verbrauchsstelle zugeführt, beispielsweise in den Zylinderraum eines Arbeitskolbens geleitet.Such pressure converters are used to increase the pressure of the hydraulic Medium. In known pressure converters, the hydraulic medium is fed through a pressure medium supply line fed through to a point of consumption, for example in the cylinder space of a Working piston directed.

Es ist Ausgabe der Erfindung, den pneumatisch -hydraulischen Druckumsetzer so weiter auszubilden, daß der hydraulisch beauEschlagte Kolben einen Arbeitskolben bzw.It is the output of the invention, the pneumatic-hydraulic pressure converter so further to train that the hydraulically actuated piston is a working piston respectively.

seine Kolbenstange eine Arbeitskolbenstange bildet. Die Lösung der Aufgabe besteht darin, daß der pneumatisch beauBschlagte Kolben im Vorlauf mit dem freien Ende seiner Kolbenstange in die mit dem hydraulischen Medium gefüllte Kammer des hydraulisch beaufschlagten Kolbens eintaucht, der mit seiner Kolbenstange aus dem Gehäuse des Druckumsetzers herausragt und hier ein Werkzeug trägt, und daß ein jeder Zylinder zwischen dem pneumatisch beaufschlagten Kolben und dem Zwischenboden bzw. zwischen dem hydraulisch beaufschlagten Kolben und dem benachbarten Deckel des Gehäuses des Druckumsetzers eine Druckluftkammer bildet.its piston rod forms a working piston rod. The solution to the The task is that the pneumatically actuated piston in advance with the free end of its piston rod in the filled with the hydraulic medium chamber of the hydraulically actuated piston is immersed, the piston rod from the housing of the pressure converter protrudes and carries a tool here, and that a each cylinder between the pneumatically actuated piston and the intermediate floor or between the hydraulically actuated piston and the adjacent cover the housing of the pressure converter forms a compressed air chamber.

Durch die Erfindung ist der Druckumsetzer zu einer pressenartigen Arbeitsvorrichtung von gedrungener Bauweise gestaltet, die relativ einfach und billig in der Herstellung ist.With the invention, the pressure converter has become a press-like one Working device designed of compact design, which is relatively simple and cheap is in the making.

In der Zeichnung ist die Erfindung an einem pneumatischhydraulischen Druckumsetzer veranschaulicht. Es zeigt: Fig. 1 den Druckumsetzer auf einem Säulengestell montiert in Ansicht und Fig. 2 ohne Säulengestell im Längsschnitt.In the drawing, the invention is based on a pneumatic-hydraulic Pressure converter illustrated. It shows: FIG. 1 the pressure converter on a column frame mounted in a view and FIG. 2 without a column frame in a longitudinal section.

Mit 1 ist das Gehäuse des Druckumsetzers bezeichnet, das am oberen Ende mittels eines Deckels 2 und am unteren Ende mittels eines Deckels 3 verschlossen ist Das Gehäuse 1 ist durch einen mit 4 bezeichneten Zwischenboden in zwei Zylinder 5,6 unterteilt. In dem Zylinder 5 ist ein pneumatisch beaufschlagter Kolben 7 und in dem Zylinder 6 ein hydraulisch beau£schlagter Kolben 8 beweglich. Der Zylinder 5 bildet zwischen dem Kolben 7 und dem Zwischenboden 4 eine Druckluftkammer. Der Zylinder 6 bildet zwischen dem Kolben 8 und dem Deckel 3 ebenfalls eine Druckluftkammer. Der Zylinder 6 ist in dem Raum zwischen dem Zwischenboden 4 und dem Kolben 8 mit hydraulischem Medium gefüllt. Zum Einfüllen des hydraulischen Mediums dienen zwei im Zwischenboden 4 befindliche Kanäle 9,10, die mittels Schraubstopfen 11,12 verschließbar sind. Der Zwishenboden 4 weist eine Stufenbohrung 13 auf, in der zwei ineinandergreifende, Dichtungsringen 14,15 als Stützen dienende Büchsen 16,17 fest eingesetzt sind.-Mit 18 ist die Kolbenstange des Kolbens 7 bezeichnet, die in der Stufenbohrung 13 bzw. in den Büchsen 16,17 geführt und mittels der Dichtungsringe 14,15 abgedichtet ist. Der Deckel 3 des Gehäuses 1 weist eine Stufenbohrung 19 auf, in der eine einem Dichtungsring 20 als Stütze dienende Büchse 21 fest eingesetzt ist. Mit 22 ist die Kolbenstange des Kolbens 8 bezeichnet, die mit ihrem freien Ende die Stufenbohrung 19 des Deckels 3 bzw. die Büchse 21 durchsetzt und mittels des.Dichtungsringes 20 und eines weiteren in der Büchse 21 befindlichen Dichtungsringes 23 abgedichtet ist. Das freie Ende der Kolbenstange 22 dient zur Aufnahme eines in der Zeichnung nicht dargestellten Werkzeuges. Mit 24 ist eine auf die Kolbenstange 22 aufgeschraubte, als Anschlag zur Begrenzung des Hubes des Kolbens 8 dienende Ringmutter bezeichnet, der eine auf die Kolbenstange 22 aufgeschraubte Kontermutter 25 zugeordnet ist. In dem Deckel 2 des Gehäuses 1 befindet sich ein in den Zylinder 5 mündender Kanal 26 und in dem Zwischenboden 4 ein in die Druckluftkammer des Zylinders 5 mündender Kanal 27. Es ist ferner in dem Deckel 3 des Gehäuses 1 ein in die Druckluftkammer des Zylinders 6 mündender Kanal 28 vorgesehen. Mit 29 ist ein Vier-Wege-Steuerschieber bezeichnet, mittels dessen die Druckluftzuleitung sowie die Druckluftableitung gesteuert werden. Der Druckumsetzer ist mit seinem Gehäuse 1 auf ein Säulengestell 30 fest aufgesetzt.1 with the housing of the pressure converter is referred to, which is at the top The end is closed by means of a cover 2 and at the lower end by means of a cover 3 The housing 1 is divided into two cylinders by means of an intermediate floor denoted by 4 5.6 subdivided. In the cylinder 5 is a pneumatically actuated piston 7 and a hydraulically actuated piston 8 is movable in the cylinder 6. Of the cylinder 5 forms a compressed air chamber between the piston 7 and the intermediate base 4. Of the The cylinder 6 also forms a compressed air chamber between the piston 8 and the cover 3. The cylinder 6 is in the space between the intermediate floor 4 and the piston 8 with hydraulic medium filled. Two are used to fill the hydraulic medium Channels 9, 10 located in the intermediate floor 4, which can be closed by means of screw plugs 11, 12 are. The intermediate floor 4 has a stepped bore 13 in which two interlocking, Sealing rings 14,15 serving as supports bushes 16,17 are firmly inserted.-With 18 the piston rod of the piston 7 is designated, which is in the stepped bore 13 or is guided in the sleeves 16,17 and sealed by means of the sealing rings 14,15. The cover 3 of the housing 1 has a stepped bore 19 in which a sealing ring 20 serving as a support sleeve 21 is firmly inserted. At 22 is the piston rod of the piston 8 denotes the stepped bore 19 of the cover with its free end 3 or the bushing 21 penetrated and by means of the sealing ring 20 and another in the sleeve 21 located sealing ring 23 is sealed. The free end the piston rod 22 serves to accommodate a not shown in the drawing Tool. At 24 is a screwed onto the piston rod 22 as a stop to limit the stroke of the piston 8 called ring nut serving, the one assigned to the piston rod 22 screwed lock nut 25 is. In the cover 2 of the housing 1 there is a channel opening into the cylinder 5 26 and in the intermediate floor 4 one opening into the compressed air chamber of the cylinder 5 Channel 27. It is also in the cover 3 of the housing 1 in the compressed air chamber of the cylinder 6 opening channel 28 is provided. At 29 there is a four-way control spool referred to, by means of which the compressed air supply and the compressed air discharge are controlled will. The pressure converter is fixed with its housing 1 on a column frame 30 put on.

Die Wirkungsweise des Druckumsetzers ist folgende.The mode of operation of the pressure converter is as follows.

Nach Einschalten des Vier-Wege-Steuerschiebers 29 wird durch die durch den Kanal 26 hindurch in den Zylinder 5 einströmende Druckluft der Kolben 7 beaufschlagt, bei dessen Vorlauf die Kolbenstange 18 in das in dem Zylinder 6 befindliche hydraulische Medium eintaucht. Hierbei wird über das hydraulische Medium erhöhter Druck auf den Kolben 8 ausgeübt, so daß dieser bzw. seine Kolbenstange 22 mit dem Werkzeug einen Arbeitshub vollFührt. Die in der Druckluftkammer des Zylinder 5 befindliche Druckluft strömt beim Vorlauf des Kolbens 7 durch den Kanal 27 hindurch aus. Es strömt Ferner die in der Druckluftkammer des Zylinders 6 befindliche Druckluft durch den Kanal 28 hindurch aus. Nach Beendigung des Arbeitshubes des Kolbens 8 bzw. dessen Kolbenstange 22 wird durch Umschalten des Vier-Wege-Steuerschiebers 29 Druckluft durch den Kanal 28 hindurch in die Druckluftkammer des Zylinders 6 sowie Druckluft durch den Kanal 27 hindurch in die Druckluftkammer des Zylinders 5 geleitet, wobei der Kolben 8 mit seiner Kolbenstange 22 und dem daran angeordneten Werkzeug sowie der Kolben 7 mit der Kolbenstange 18 in die Ausgangslage bewegt werden. Hierbei strömt die in dem Zylinder 5 oberhalb des Kolbens 7 befindliche Druckluft durch den Kanal 26 hindurch aus.After switching on the four-way control slide 29 is through the Compressed air flowing through the channel 26 into the cylinder 5 acts on the piston 7, in its advance, the piston rod 18 into the hydraulic located in the cylinder 6 Medium immersed. In this case, increased pressure is exerted on the hydraulic medium Piston 8 exercised so that this or its piston rod 22 with the tool one Working stroke fully completed. The compressed air in the compressed air chamber of the cylinder 5 flows out through the channel 27 as the piston 7 advances. It flows further the compressed air located in the compressed air chamber of the cylinder 6 through the channel 28 through. After completion of the working stroke of the piston 8 or its piston rod 22 is by switching the four-way control slide 29 compressed air through the Channel 28 through into the compressed air chamber of the cylinder 6 and compressed air through the Channel 27 passed through into the compressed air chamber of the cylinder 5, the piston 8 with its piston rod 22 and the tool arranged on it, as well as the piston 7 can be moved with the piston rod 18 into the starting position. Here the flows Compressed air located in the cylinder 5 above the piston 7 through the channel 26 through out.

Der vorbeschriebene Vorgang wiederholt sich hiernach.The above-described process is then repeated.

Claims (1)

Patentanspruch Claim Pneumatisch-hydraulischer Druckumsetzer, bestehend aus einem pneumatisch beaufschlagten Kolben und einem koaxial zu letzterem angeordneten hydraulisch beaufschlagten Kolben, die in von einem gemeinsamen Gehäuse gebildeten, durch einen Zwischenboden voneinander getrennten Zylindern beweglich sind, dadurch gekennzeichnet, daß der pneumaetisch beaufschlagte Kolben (7) im Vorlauf mit dem Freien Ende seiner Kolbenstange (18) in die mit dem hydraulischen Medium gefüllte Kammer des hydraulisch beaufschlagten Kolbens (8) eintaucht, der mit seiner Kolbenstange (22) aus dem Gehäuse (1) des Druckumsetzers herausragt und hier ein Werkzeug trägt, und daß ein jeder Zylinder ( 5 bzw. 6) zwischen dem pneumatisch beaufschlagten Kolben (7) und dem Zwischenboden (4) bzw.Pneumatic-hydraulic pressure converter, consisting of a pneumatic acted upon piston and a coaxially arranged to the latter hydraulically acted upon Pistons, which are formed by a common housing, through an intermediate bottom mutually separate cylinders are movable, characterized in that the pneumatically actuated piston (7) in advance with the free end of its piston rod (18) into the chamber of the hydraulically loaded chamber filled with the hydraulic medium Piston (8) is immersed, which with its piston rod (22) from the housing (1) of the Pressure converter protrudes and carries a tool here, and that each cylinder (5 or 6) between the pneumatically actuated piston (7) and the intermediate floor (4) or zwischen dem hydraulisch beaufschlagten Kolben (8) und dem benachbarten Deckel (3) des Gehäuses (1) des Druckumsetzers eine Druckluftkammer bildet.between the hydraulically actuated piston (8) and the adjacent one The cover (3) of the housing (1) of the pressure converter forms a compressed air chamber. L e e r s e i t eL e r s e i t e
DE19722230492 1972-06-22 1972-06-22 PNEUMATIC-HYDRAULIC PRESSURE CONVERTER Pending DE2230492A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19722230492 DE2230492A1 (en) 1972-06-22 1972-06-22 PNEUMATIC-HYDRAULIC PRESSURE CONVERTER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722230492 DE2230492A1 (en) 1972-06-22 1972-06-22 PNEUMATIC-HYDRAULIC PRESSURE CONVERTER

Publications (1)

Publication Number Publication Date
DE2230492A1 true DE2230492A1 (en) 1974-01-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722230492 Pending DE2230492A1 (en) 1972-06-22 1972-06-22 PNEUMATIC-HYDRAULIC PRESSURE CONVERTER

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535796A1 (en) * 1982-11-09 1984-05-11 Desseigne Michel Fast pneumatic return device of a pneumatic-hydraulic assembly: force multiplying actuator
US4787206A (en) * 1986-07-30 1988-11-29 Herbert Haenchen Kg Hydraulic pressure transducer
EP0579037A1 (en) * 1992-07-02 1994-01-19 TOX-PRESSOTECHNIK GmbH Hydropneumatic pressure intensifier
WO2004072486A1 (en) * 2003-02-14 2004-08-26 Wolfgang Voss Method and device for pressure amplification in cylinders, in particular hydraulic rams
WO2015171708A1 (en) * 2014-05-09 2015-11-12 Montana Hydraulics,Llc Air-to-hydraulic fluid pressure amplifier

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535796A1 (en) * 1982-11-09 1984-05-11 Desseigne Michel Fast pneumatic return device of a pneumatic-hydraulic assembly: force multiplying actuator
US4787206A (en) * 1986-07-30 1988-11-29 Herbert Haenchen Kg Hydraulic pressure transducer
EP0579037A1 (en) * 1992-07-02 1994-01-19 TOX-PRESSOTECHNIK GmbH Hydropneumatic pressure intensifier
WO2004072486A1 (en) * 2003-02-14 2004-08-26 Wolfgang Voss Method and device for pressure amplification in cylinders, in particular hydraulic rams
US7424803B2 (en) 2003-02-14 2008-09-16 Wolfgang Voss Method and device for pressure amplification in cylinders, in particular hydraulic rams
WO2015171708A1 (en) * 2014-05-09 2015-11-12 Montana Hydraulics,Llc Air-to-hydraulic fluid pressure amplifier

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