DE2757623A1 - Hydraulic drive with regulated power transmission - has DC motor for pump and short circuiting separating valve - Google Patents

Hydraulic drive with regulated power transmission - has DC motor for pump and short circuiting separating valve

Info

Publication number
DE2757623A1
DE2757623A1 DE19772757623 DE2757623A DE2757623A1 DE 2757623 A1 DE2757623 A1 DE 2757623A1 DE 19772757623 DE19772757623 DE 19772757623 DE 2757623 A DE2757623 A DE 2757623A DE 2757623 A1 DE2757623 A1 DE 2757623A1
Authority
DE
Germany
Prior art keywords
pump
piston
drive
power transmission
hydraulic drive
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Withdrawn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
DE19772757623
Other languages
German (de)
Inventor
Peter Epp
Fritz Streck
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE19772757623 priority Critical patent/DE2757623A1/en
Publication of DE2757623A1 publication Critical patent/DE2757623A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
    • B25J9/14—Programme-controlled manipulators characterised by positioning means for manipulator elements fluid
    • B25J9/144—Linear actuators
    • 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
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20561—Type of pump reversible
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • F15B2211/50527—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves using cross-pressure relief valves
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The hydraulic drive has regulated power transmission consisting of a double acting piston between chambers connected to a pump (8). The drive has low energy consumption and is protected against explosion. The pump (8) is connected to a d.c. drive motor (10). This motor can be reversed and regulated and it has a disc rotor. A short circuiting valve (16) is connected in parallel to the piston and cylinder system (1) for separating the piston and cylinder system from the regulating system.

Description

Hydraulischer Antrieb für regelbare Kraftübertragung Hydraulic drive for adjustable power transmission

Die Erfindung betrifft einen hydraulischen Antrieb der im Oberbegriff des Hauptanspruchs angegebenen, beispielsweise aus der DT-OS 25 53 748, F15B 13/09, bekannten Art. Vorzugsweise soll die Erfindung Einsatz finden als Antrieb für Bestandteile von Handhabungsautomaten.The invention relates to a hydraulic drive in the preamble of the main claim specified, for example from DT-OS 25 53 748, F15B 13/09, known type. The invention is preferably used as a drive for components of handling machines.

Der Erfindung liegt die Aufgabe zugrunde, einen hydraulischen Antrieb gemäß dem Oberbegriff des Hauptanspruchs so auszubilden, daß er explosionssicher ist und einen geringen Energiebedarf besitzt.The invention is based on the object of a hydraulic drive according to the preamble of the main claim so that it is explosion-proof and has a low energy requirement.

Die erfindungsgemäße Lösung dieser Aufgabe ist gekennzeichnet durch die Merkmale des Hauptanspruchs. Vorteilhafte Ausbildungen der Erfindung sind Gegenstand der Unteransprüche.The inventive solution to this problem is characterized by the features of the main claim. Advantageous developments of the invention are the subject of the subclaims.

Die Erfindung verwendet also in vorteilhafter Weise Bestandteile der elektronischen Steuerung oder Regelung des Geräts, von dem der hydraulische Antrieb einen Teil bildet, also beispielsweise eines Handhabungsautomaten, zugleich als wesentliche Bestandteile eines mechanischen bzw. hydraulischen Antriebs. Die Erfindung zeichnet sich durch sehr geringe Wärmeentwicklung und geringen Energiebedarf aus, da die mit der trägheitsarm ausgebildeten Gleichstrommaschine verbundene Pumpe nur zur Erzeugung von Stellbefehlen arbeitet. Der Druck in dem Antriebssystem wird durch eine zusätzliche, mit Rückschlagventilen ausgerüstete Einspeisung gewährleistet.The invention thus advantageously uses components of the electronic control or regulation of the device from which the hydraulic drive forms a part, so for example a handling machine, at the same time as essential components of a mechanical or hydraulic drive. The invention is characterized by very little heat generation and low energy consumption the end, because the pump connected to the low-inertia DC machine only to generate positioning commands works. The pressure in the drive system is increased an additional feed equipped with non-return valves is guaranteed.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Figur erläutert.In the following an embodiment of the invention is based on the Figure explained.

In der Kolben- Zylinder-Anordnung 1 befindet sich zu beiden Seiten des Kolbens 2 Je ein Druckraum 3 bzw. 4. Die Kolbenstange 5 steht in an sich bekannter und daher hier nicht beschriebener Weise in Verbindung mit einem mechanischen Antriebselement (Zahnriemen, Hebel) für Bewegungen eines Bestandteils eines Handhabungsautomaten um eine Achse.In the piston-cylinder arrangement 1 is located on both sides of the piston 2 Each pressure chamber 3 or 4. The piston rod 5 is known per se and therefore in a manner not described here in connection with a mechanical drive element (Toothed belt, lever) for movements of a component of an automatic handling machine around an axis.

Über ebenfalls an sich bekannte Lasthalteventile 6 und 7 stehen die Druckräume 3 und 4 in Verbindung mit der drehrichtungsunabhängig arbeitenden Pumpe 8, die über die Kupplung 9 mit der trägheitsarmen regelbaren Gleichstrommaschine 10 verbunden ist. In dem bevorzugten Einsatzfall der Erfindung werden der Gleichstrommaschine 10, die in der Regel nach Art eines Scheibenläufermotors aufgebaut sein wird, elektrische Antriebssignale entsprechend einem gespeicherten Programm für die Arbeitsweise des Handhabungsautomaten zugeführt. Über die Leitungen 11 und 12 erhöht die in beiden Richtungen arbeitende Pumpe 8 je nach der Drehrichtung und damit je nach dem an die Gleichstrommaschine gelangenden Antriebs signal den Druck in einem der Druckräume 3 und 4 bei gleichzeitiger Verminderung des Drucks in dem anderen Druckraum, eo daß die Kolbenstange 5 mechanische Stellbefehle überträgt.About load-holding valves 6 and 7, which are also known per se, are available Pressure chambers 3 and 4 in connection with the pump that works independently of the direction of rotation 8, via the clutch 9 with the low-inertia controllable DC machine 10 is connected. In the preferred application of the invention, the DC machine 10, which will usually be constructed in the manner of a pancake motor, electrical Drive signals according to a stored program for the operation of the Handling machines fed. About the lines 11 and 12 increases in both Directions working pump 8 depending on the direction of rotation and thus depending on the the drive reaching the direct current machine signal the pressure in one of the pressure chambers 3 and 4 with simultaneous reduction of the pressure in the other pressure space, eo that the piston rod 5 transmits mechanical control commands.

Zur Wahrung eines Mindestdrucks dient die zusätzliche Einspeisung 13 mit den beiden Rückschlagventilen 14 und 15.The additional feed serves to maintain a minimum pressure 13 with the two check valves 14 and 15.

Alle Bewegungen der Gleichstrommaschine 10 werden synchron auf die Kolben- Zylinder-Anordnung 1 übertragen. Damit ist eine Bedingung für eine reaktionsschnelle und genaue Regelung erfüllt.All movements of the DC machine 10 are synchronized with the Piston-cylinder arrangement 1 transferred. This is a condition for being responsive and exact regulation met.

Zum Programmieren eines Handhabungsautomaten ist es in vielen Systemen erforderlich, den das Werkstück bzw. Werkzeug tragenden Kopf des Automaten von Hand längs der zu speichernden Bewegungsbahn zu führen. Um hierbei den eigentlichen Antrieb, d.h. die Kolben-Zylinder-Anordnung 1, von der Regel- bzw. Steueranordnung trennen zu können, liegt parallel zur Kolben- Zylinder-Anordnung 1 das Kurzschlußventil 16, das nach Betätigung von Hand das freie Bewegen des Kolbens 2 relativ zum Zylinder der Anordnung 1 gestattet.It is used in many systems for programming a handling machine required, the head of the machine carrying the workpiece or tool by hand along the trajectory to be stored. In order to achieve the actual drive i.e., separate the piston-cylinder arrangement 1 from the control arrangement to be able to, is parallel to the piston-cylinder arrangement 1, the short-circuit valve 16, the free movement of the piston 2 relative to the cylinder after actuation by hand the arrangement 1 allowed.

Claims (3)

ANSPRüCHE Hydraulischer Antrieb für regelbare Kraftübertragung, enthaltend eine Kolben- Zyl inder-Anordnung mit Druckräumen beiderseits des Kolbens, die über Lasthalteventile mit einer Pumpe verbindbar sind, sowie mit einer einen vorgegebenen Druck sicherstellenden Einspeisung, dadurch gekennzeichnet, daß die Pumpe (8) drehrichtungsunabhängig und mit einer regelbaren Gleichstrommaschine (10) als Antrieb verbunden ist. CLAIMS Hydraulic drive for controllable power transmission, containing a piston cylinder arrangement with pressure chambers on both sides of the piston, which over Load holding valves can be connected to a pump, as well as to a predetermined one Pressure-ensuring feed, characterized in that the pump (8) is independent of the direction of rotation and is connected to a controllable DC machine (10) as a drive. 2. Antrieb nach Anspruch 1, gekennzeichnet durch eine Gleichstrommaschine (10) nach Art eines Scheibenläufermotors. 2. Drive according to claim 1, characterized by a direct current machine (10) in the manner of a disc motor. 3. Antrieb nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß parallel zu der Kolben-Zylinder-Anordnung (1) ein Kurzschlußventil (16) geschaltet ist. 3. Drive according to claim 1 or 2, characterized in that parallel a short-circuit valve (16) is connected to the piston-cylinder arrangement (1).
DE19772757623 1977-12-23 1977-12-23 Hydraulic drive with regulated power transmission - has DC motor for pump and short circuiting separating valve Withdrawn DE2757623A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772757623 DE2757623A1 (en) 1977-12-23 1977-12-23 Hydraulic drive with regulated power transmission - has DC motor for pump and short circuiting separating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772757623 DE2757623A1 (en) 1977-12-23 1977-12-23 Hydraulic drive with regulated power transmission - has DC motor for pump and short circuiting separating valve

Publications (1)

Publication Number Publication Date
DE2757623A1 true DE2757623A1 (en) 1979-06-28

Family

ID=6027073

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772757623 Withdrawn DE2757623A1 (en) 1977-12-23 1977-12-23 Hydraulic drive with regulated power transmission - has DC motor for pump and short circuiting separating valve

Country Status (1)

Country Link
DE (1) DE2757623A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513165A1 (en) * 1981-09-23 1983-03-25 Copperweld Robotics Inc MECHANICAL HANDLING APPARATUS AND METHOD FOR IMPLEMENTING SAID APPARATUS
US4696163A (en) * 1983-03-28 1987-09-29 Rexa Corporation Control valve and hydraulic system employing same
US4811562A (en) * 1986-11-03 1989-03-14 Daimler-Benz Aktiengesellschaft Adjusting drive
DE4226348A1 (en) * 1992-08-08 1994-02-10 Schleicher & Co Int Baler
EP1103727A2 (en) * 1999-11-26 2001-05-30 Hoerbiger Hydraulik GmbH Hydraulic operating device
EP1162375A2 (en) * 2000-06-06 2001-12-12 HOERBIGER FLUIDTECHNIK GmbH Actuation arrangement for swivelling parts of vehicles
DE102011086030A1 (en) * 2011-11-09 2013-05-16 Siemens Aktiengesellschaft Nozzle group control for turbines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513165A1 (en) * 1981-09-23 1983-03-25 Copperweld Robotics Inc MECHANICAL HANDLING APPARATUS AND METHOD FOR IMPLEMENTING SAID APPARATUS
US4696163A (en) * 1983-03-28 1987-09-29 Rexa Corporation Control valve and hydraulic system employing same
US4811562A (en) * 1986-11-03 1989-03-14 Daimler-Benz Aktiengesellschaft Adjusting drive
DE4226348A1 (en) * 1992-08-08 1994-02-10 Schleicher & Co Int Baler
EP1103727A2 (en) * 1999-11-26 2001-05-30 Hoerbiger Hydraulik GmbH Hydraulic operating device
EP1103727A3 (en) * 1999-11-26 2007-05-09 Hoerbiger Automatisierungstechnik Holding GmbH Hydraulic operating device
EP1162375A2 (en) * 2000-06-06 2001-12-12 HOERBIGER FLUIDTECHNIK GmbH Actuation arrangement for swivelling parts of vehicles
EP1162375A3 (en) * 2000-06-06 2004-02-04 Hoerbiger Hydraulik GmbH Actuation arrangement for swivelling parts of vehicles
DE102011086030A1 (en) * 2011-11-09 2013-05-16 Siemens Aktiengesellschaft Nozzle group control for turbines
EP2592237A3 (en) * 2011-11-09 2017-11-22 Siemens Aktiengesellschaft Nozzle group control for turbines

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