DE2336249A1 - Hydraulic power unit - has hydropump, hydraulic fluid reservoir, and power cylinder built into one assembly - Google Patents

Hydraulic power unit - has hydropump, hydraulic fluid reservoir, and power cylinder built into one assembly

Info

Publication number
DE2336249A1
DE2336249A1 DE19732336249 DE2336249A DE2336249A1 DE 2336249 A1 DE2336249 A1 DE 2336249A1 DE 19732336249 DE19732336249 DE 19732336249 DE 2336249 A DE2336249 A DE 2336249A DE 2336249 A1 DE2336249 A1 DE 2336249A1
Authority
DE
Germany
Prior art keywords
hydraulic
cylinder
reservoir
working
hydropump
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.)
Ceased
Application number
DE19732336249
Other languages
German (de)
Inventor
Manfred Klauck
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.)
HYDRAULIK ZUBEHOER GES fur
Original Assignee
HYDRAULIK ZUBEHOER GES fur
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 HYDRAULIK ZUBEHOER GES fur filed Critical HYDRAULIK ZUBEHOER GES fur
Priority to DE19732336249 priority Critical patent/DE2336249A1/en
Publication of DE2336249A1 publication Critical patent/DE2336249A1/en
Ceased 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/18—Combined units comprising both motor and pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

The fluid reservoir functionally connects the pump with the power cylinder hereby eliminating connecting pipework between pump, reservoir and power cylinder and is provided with opening to flange-on the two other elements. Further, the reservoir is fitted with a lid and a flexible diaphragm for volume compensation of the variable flow quantity of fluid flowing into or out of the reservoir according to the direction of stroke of the plunger of the power unit which is designed as a differential cylinder. The lid is provided with a venting hole to the atmosphere.

Description

5.7.1973 Akte 121.805,5.7.1973 file 121.805,

Hydraulische ArbeitseinheitHydraulic working unit

Die Erfindung betrifft eine aus einem Hydropumpenaggregat und einem Hydro- bzw. Arbeitszylinder gebildete Arbeitseinheit. In bekannter Weise bilden bei diesen Arbeitseinheiten das Hydropumpenaggregat und der Hydro- bzw. Arbeitszylinder jeweils für sich getrennte Einbaueinheiten. Dies bereitet insbesondere bei beengten Platzverhältnissen Schwierigkeiten für"deren Einbau. Außerdem sind hierbei umfangreiche Vorkehrungen zum Verlegen der Arbeitsleitungen erforderlich.The invention relates to a working unit formed from a hydraulic pump unit and a hydraulic or working cylinder. In a known manner, the hydraulic pump unit and the hydraulic or working cylinder each form in these working units separate installation units. This creates difficulties for "their", especially when space is limited Installation. In addition, extensive precautions are required for laying the working lines.

Die Aufgabe der Erfindung besteht darin, eine Arbeitseinheit zu schaffen, bei der Hydropumpenaggr.egat und Arbeitszylinder eine gemeinsame Einbaueinheit bilden.The object of the invention is to create a working unit in which the hydraulic pump unit and working cylinder form a common installation unit.

Dies wird nach der Erfindung in einfacher Weise dadurch erreicht, daß das Hydropumpenaggregat über den Hydraulikbehälter mit dem Arbeitszylinder verbunden ist. Der Hydraulikbehälter bildet somit das Verbindungselement zwischen Hydropumpenaggreqat und Arbeitszylinder. Damit ist in einfachster Weise eine kompakte Einbaueinheit von Hydropumpenaggregat und Arbeitszylinder geschaffen.According to the invention, this is achieved in a simple manner by that the hydraulic pump unit is connected to the working cylinder via the hydraulic tank. The hydraulic tank forms thus the connecting element between the hydraulic pump unit and the working cylinder. This is a compact one in the simplest possible way Installation unit created by hydraulic pump unit and working cylinder.

titi

Weitere Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Figurenbeschreibung.Further details of the invention emerge from the subclaims as well as the following description of the figures.

409886/0083409886/0083

Die einzige Figur zeigt eine Seitenansicht einer orfindungsgemäßen Arbeitseinheit, wobei der Hydraulikbehälter im Bereich der Befestigungsstellen von Hydropumpenaggr'egat und Hydrozvlinder geschnitten ist.The single figure shows a side view of an according to the invention Working unit, with the hydraulic tank in the area of the attachment points of the Hydropumpenaggr'egat and Hydrozvlinder is cut.

In der Figur ist mit 1 der Hydro- bzw. Arbeitszylinder bezeichnet und mit 2 das aus Pumpe 3 und Antriebsmotor 4 bestehende Hvdropumpenaggregat. Pumpe 3 und Antriebsmotor 4 sind über den Flansch 5 miteinander verbunden. Der Hydraulikbehälter 6 v/ei Pt deckelseitig 6a eine Ausnehmung 6b auf, Sie zur Aufnahme der Hydropumpe 3 dient und nach außen mittels des Zwischenflansches flüssigkeitsdicht abgeschlossen ist. Die weitere deckelseitige Ausnehmung 6c sowie die bodenseitige Ausnehmung 6d nehmen den Zylinderkopf la des Hydrozylinders 1 auf. Die Befestigung des Zylinderkopfes erfolgt am Boden 6e des Hydraulikbehälters 6. Neben der Aufnahmeöffnung 6d ist am Boden 6e eine v/eitere öffnung 6f vorgesehen, die mit einer Membrane 7 abgedeckt ist. Die Membrane 7 ist von einer Stützwand 8 mit Entlüftungsöffnung 8a umgeben. Die Aufgabe der Membrane dient zur Gewährleistung eines Volumenausgleichs des Hydraulikbehälters. Dieser Volumenausgleioh ist deshalb erforderlich, da der als Differentialzvlinder ausgebildete Hydrozylinder 1 in der Ausfahrbewegung eine größere Flüssigkeitsmenge kolbenseitig zugeführt erhält als er kolbenstangenseitig in den Hydraulikbehälter zurückfördert. Umaekehrt verhält es sich, wenn der Hydraulikzylinder eingezogen wird. In diesem Falle ist die aufgenommene Arbeitsflüssigkeitsmenge geringer als die abgegebene Flüssigkeitsmenge des HvdroZylinders.In the figure, 1 denotes the hydraulic or working cylinder and 2 denotes the hydraulic pump unit consisting of pump 3 and drive motor 4. Pump 3 and drive motor 4 are connected to one another via flange 5. The hydraulic tank 6 v / ei Pt cover side 6a on a recess 6b, it serves to accommodate the hydraulic pump 3 and to the outside by means of the intermediate flange is liquid-tight. The further cover-side recess 6c and the bottom-side recess 6d take the Cylinder head la of the hydraulic cylinder 1. The cylinder head is attached to the bottom 6e of the hydraulic tank 6. In addition to the receiving opening 6d, a further opening 6f, which is covered with a membrane 7, is provided on the bottom 6e. The membrane 7 is surrounded by a support wall 8 with a ventilation opening 8a surround. The purpose of the membrane is to ensure that the hydraulic tank is balanced in volume. This volume compensation is therefore necessary because the differential cylinder is designed Hydraulic cylinder 1 in the extension movement receives a larger amount of liquid supplied on the piston side than it receives on the piston rod side returned to the hydraulic tank. The reverse is true when the hydraulic cylinder is retracted. In this case, the amount of working fluid absorbed is less than the amount of fluid dispensed by the Hvdro cylinder.

409886/0083409886/0083

Die Steuerung des Hydrozylinders erfolgt mittels älnes nicht dargestellten Steuergerätes, das in bekannter Weise von einem Wegeventil gebildet ist und in die von der Pumpe und Hydraulikbehälter zum Hydrozylinder führenden Arbeitsleitungen zwischengeschaltet ist und ebenfalls am Hydraulikbehälter zu befestigen ist. Der Hydraulikbehälter braucht selbst keine Befestigungsmittel aufzuweisen, da dieser Bauteil des Hydrozylinders ist und gleichzeitig das Verbindungselement zwischen Hydrozylinder und Hydropumpenaggregat bildet. Das Hydropumpenaggregat 2 wird somit gemeinsam mit dem Hydraulikbehälter 6 von dem* Hydrozylinder getragen. Deshalb müssen für den Einbau dieser Teile keine besonderen Vorkehrungen getroffen werden. Dadurch, daß die Aufnahmeöffnungen 6c und 6e für den Hydrozylinder 1 kreisförmig ausgebildet sind, läßt sich bezogen auf die Lage der Zylinderaugen Ib und Ic das Hydropumpenaggregat in jeder Winkellage des Hydrozylinders mit letzterem befestigen, so daß für jede Einbaulage der Arbeitseinheit eine gute Anpassungsfähigkeit gewährleistet ist.The hydraulic cylinder is not controlled by means of älnes shown control device, which is formed in a known manner by a directional control valve and into which the pump and hydraulic tank working lines leading to the hydraulic cylinder are interposed and also to be attached to the hydraulic tank is. The hydraulic tank itself does not need any fasteners to have, since this is a component of the hydraulic cylinder and at the same time the connecting element between the hydraulic cylinder and hydraulic pump unit forms. The hydraulic pump unit 2 is thus together with the hydraulic tank 6 of the * hydraulic cylinder carried. Therefore, no special precautions have to be taken for the installation of these parts. In that the receiving openings 6c and 6e are circular for the hydraulic cylinder 1, can be related to the position of the cylinder eyes Ib and Ic the hydraulic pump unit in every angular position of the hydraulic cylinder with the latter, so that a good adaptability for every installation position of the working unit is guaranteed.

409886/0083409886/0083

Claims (4)

PatentansprücheClaims l./Aus einem Hydropumpenaggregat und einem Hydrozylinder gebildete Arbeitseinheit, dadurch gekennzeichnet , daß das Hydropumpenaggregat (2) über den Hydraulikbehälter (6) mit dem Hydrozylinder (1) verbunden ist.l./ From a hydraulic pump unit and a hydraulic cylinder formed working unit, characterized in that the hydraulic pump unit (2) via the Hydraulic tank (6) is connected to the hydraulic cylinder (1). 2. Arbeitseinheit nach Anspruch 1, dadurch gekennzeichnet , daß der Hydraulikbehälter (6) deckel- und bodenseitig Aussparungen (6c, 6d) zur Aufnahme des Zylinderkopfes (la) des Hydrozylinders (1) aufweist.2. Working unit according to claim 1, characterized in that the hydraulic container (6) has recesses (6c, 6d) on the cover and bottom for receiving the cylinder head (la) of the hydraulic cylinder (1). 3. Arbeitseinheit nach Anspruch 2, dadurch gekennzeichnet , daß die deckel- und bodenseitige Aussparung (6c, 6d) zur Aufnahme des Zylinderkopfes (la) Kreisform besitzt.3. Working unit according to claim 2, characterized that the cover and bottom-side recess (6c, 6d) for receiving the cylinder head (la) Has a circular shape. 4. Arbeitseinheit nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet , daß am Hydraulikbehälter (6) eine Membrane (7) zum Volumenausgleich für das Arbeitsmittel angeordnet ist.4. Working unit according to one or more of claims 1 to 3, characterized in that a membrane (7) for volume compensation on the hydraulic tank (6) is arranged for the work equipment. 409886/0083409886/0083
DE19732336249 1973-07-17 1973-07-17 Hydraulic power unit - has hydropump, hydraulic fluid reservoir, and power cylinder built into one assembly Ceased DE2336249A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732336249 DE2336249A1 (en) 1973-07-17 1973-07-17 Hydraulic power unit - has hydropump, hydraulic fluid reservoir, and power cylinder built into one assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732336249 DE2336249A1 (en) 1973-07-17 1973-07-17 Hydraulic power unit - has hydropump, hydraulic fluid reservoir, and power cylinder built into one assembly

Publications (1)

Publication Number Publication Date
DE2336249A1 true DE2336249A1 (en) 1975-02-06

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ID=5887148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732336249 Ceased DE2336249A1 (en) 1973-07-17 1973-07-17 Hydraulic power unit - has hydropump, hydraulic fluid reservoir, and power cylinder built into one assembly

Country Status (1)

Country Link
DE (1) DE2336249A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489897A1 (en) * 1980-09-10 1982-03-12 Leduc Rene Hydro Sa Self contained hydraulic actuator unit - has electric motor, hydraulic pump, and reservoir in cylindrical housing and hydraulic cylinder and valve in attached housing
EP0419810A1 (en) * 1989-09-28 1991-04-03 FAG Kugelfischer Georg Schäfer Aktiengesellschaft Power unit
WO1999034119A1 (en) * 1997-12-23 1999-07-08 Anders Sten Wedell Hydraulic unit
US6588556B2 (en) * 2000-07-26 2003-07-08 Hoerbiger Micro Fluid Gmbh Pressure medium cylinder with attached function block

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489897A1 (en) * 1980-09-10 1982-03-12 Leduc Rene Hydro Sa Self contained hydraulic actuator unit - has electric motor, hydraulic pump, and reservoir in cylindrical housing and hydraulic cylinder and valve in attached housing
EP0419810A1 (en) * 1989-09-28 1991-04-03 FAG Kugelfischer Georg Schäfer Aktiengesellschaft Power unit
WO1999034119A1 (en) * 1997-12-23 1999-07-08 Anders Sten Wedell Hydraulic unit
US6588556B2 (en) * 2000-07-26 2003-07-08 Hoerbiger Micro Fluid Gmbh Pressure medium cylinder with attached function block

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