DE202014008147U1 - Hydraulic cylinder with integrated balancing valve - Google Patents

Hydraulic cylinder with integrated balancing valve Download PDF

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Publication number
DE202014008147U1
DE202014008147U1 DE202014008147.6U DE202014008147U DE202014008147U1 DE 202014008147 U1 DE202014008147 U1 DE 202014008147U1 DE 202014008147 U DE202014008147 U DE 202014008147U DE 202014008147 U1 DE202014008147 U1 DE 202014008147U1
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DE
Germany
Prior art keywords
piston
hydraulic cylinder
valve
integrated
balancing valve
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
DE202014008147.6U
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German (de)
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.)
DURWEN MASCHB GmbH
DURWEN MASCHINENBAU GmbH
Original Assignee
DURWEN MASCHB GmbH
DURWEN MASCHINENBAU 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 DURWEN MASCHB GmbH, DURWEN MASCHINENBAU GmbH filed Critical DURWEN MASCHB GmbH
Priority to DE202014008147.6U priority Critical patent/DE202014008147U1/en
Publication of DE202014008147U1 publication Critical patent/DE202014008147U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/204—Control means for piston speed or actuating force without external control, e.g. control valve inside the piston

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

Hydraulikzylinder mit in den Kolben (1) integriertem Ventil, dadurch gekennzeichnet, daß der Kolben aus einem einzigen Werkstück (1) besteht.Hydraulic cylinder with a valve integrated in the piston (1), characterized in that the piston consists of a single workpiece (1).

Description

Die Erfindung betrifft einen Hydraulikzylinder mit einem integrierten Ausgleichsventil. Solche Hydraulikzylinder sind bereits bekannt, zum Beispiel aus der deutschen Patentschrift DE 69303478 . Bei den bisher bekannten Ausführungen eines solchen Hydraulikzylinders besteht vor allem der Kolben des Hydraulikzylinders aus einer Vielzahl von Einzelteilen, um das Ventil in den Kolben integrieren und die Konstruktion montieren zu können.The invention relates to a hydraulic cylinder with an integrated balancing valve. Such hydraulic cylinders are already known, for example from the German patent DE 69303478 , In the previously known embodiments of such a hydraulic cylinder, in particular, the piston of the hydraulic cylinder consists of a large number of individual parts in order to be able to integrate the valve into the piston and to assemble the construction.

Die vorliegende Erfindung bietet eine Lösung zur Integration des Ausgleichsventils in den Kolben des Hydraulikzylinders, bei der die Zahl der Einzelteile auf ein Minimum reduziert ist. Dies wird erreicht, indem ein Teil der Konstruktion in die Kolbenstange verlagert wird. Hierzu wird in der Kolbenstange eine Auslaßbohrung, bestehend aus einer axialen Sackbohrung und einer radialen Durchgangsbohrung, welche die Sackbohrung durchstößt, so daß das Fluid aus dem Zylinder durch die Kolbenstange und das in den Kolben integrierte Ausgleichsventil ausströmen kann. So kann der Kolben selbst aus einem Stück gefertigt werden.The present invention provides a solution for integrating the compensating valve into the piston of the hydraulic cylinder in which the number of parts is reduced to a minimum. This is accomplished by shifting part of the structure into the piston rod. For this purpose, in the piston rod an outlet bore, consisting of an axial blind bore and a radial through hole which pierces the blind bore, so that the fluid can flow out of the cylinder through the piston rod and integrated into the piston compensation valve. So the piston itself can be made in one piece.

In einer bevorzugten Ausführungsform besteht der Kolben aus einem Werkstück (1), in dem sich die Kugel (2) des Ausgleichsventils sowie der Stößel (3) zur Betätigung der Kugel (2) des Ausgleichsventils befinden. Abgeschlossen wird der Kolben (1) durch die Kolbenstange (4), in der sich eine Sackbohrung (5) und eine Querbohrung (6) als Zulauf des in den Kolben integrierten Ausgleichsventils befinden. Um den Kolben herum ist eine Dichtung (7) angebracht. Gelangt der Kolben in seine Endlage, wird durch einen Anschlag (8) der Stößel (3) betätigt, der dann die Kugel (2) in den Kolben drückt und so die Auslaßöffnung (9) freigibt.In a preferred embodiment, the piston consists of a workpiece ( 1 ), in which the ball ( 2 ) of the compensating valve and the plunger ( 3 ) for actuating the ball ( 2 ) of the equalizing valve. Completes the piston ( 1 ) through the piston rod ( 4 ), in which a blind hole ( 5 ) and a transverse bore ( 6 ) as an inlet of the compensating valve integrated in the piston. Around the piston is a gasket ( 7 ) appropriate. If the piston reaches its end position, it is stopped by a stop ( 8th ) the plunger ( 3 ), then the ball ( 2 ) pushes into the piston and so the outlet opening ( 9 ) releases.

Zeichnung 1 stellt einen Schnitt durch den Hydraulikzylinder mit Kolben, darin integriertem Ventil und Kolbenstange dar.Drawing 1 shows a section through the hydraulic cylinder with piston, integrated valve and piston rod therein.

Zeichnung 2 ist eine Explosionszeichnung mit den Einzelteilen von Kolben, Ventil und Kolbenstange.Drawing 2 is an exploded view of the parts of the piston, valve and piston rod.

Zeichnung 3 stellt einen Schnitt durch den Hydraulikzylinder mit geöffneter Auslaßöffnung des Ventils dar.Drawing 3 illustrates a section through the hydraulic cylinder with the outlet opening of the valve open.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Kolbenpiston
22
Ventilkugelvalve ball
33
Ventilstößeltappet
44
Kolbenstangepiston rod
55
SackborungSackborung
66
Querbohrungcross hole
77
Dichtungpoetry
88th
Anschlagattack
99
Auslaßöffnung des VentilsOutlet opening of the valve

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 69303478 [0001] DE 69303478 [0001]

Claims (4)

Hydraulikzylinder mit in den Kolben (1) integriertem Ventil, dadurch gekennzeichnet, daß der Kolben aus einem einzigen Werkstück (1) besteht.Hydraulic cylinder with into the piston ( 1 ) integrated valve, characterized in that the piston from a single workpiece ( 1 ) consists. Hydraulikzylinder nach Anspruch 1 dadurch gekennzeichnet, daß die Einlaßöffnung des in den Kolben integrierten Ventils mittels Bohrungen (5 und 6) durch die Kolbenstange (4) führt.Hydraulic cylinder according to claim 1, characterized in that the inlet opening of the valve integrated in the piston by means of bores ( 5 and 6 ) through the piston rod ( 4 ) leads. Hydraulikzylinder nach Anspruch 1 oder 2 dadurch gekennzeichnet, daß das Ventil bei Erreichen eines Anschlags (8) durch einen Stößel (3) automatisch betätigt wird.Hydraulic cylinder according to claim 1 or 2, characterized in that the valve upon reaching a stop ( 8th ) by a pestle ( 3 ) is automatically operated. Hydraulikzylinder nach Anspruch 1, 2 oder 3 dadurch gekennzeichnet, daß die Ventilfunktion im Kolben durch eine Kugel (2) wahrgenommen wird.Hydraulic cylinder according to claim 1, 2 or 3, characterized in that the valve function in the piston by a ball ( 2 ) is perceived.
DE202014008147.6U 2014-10-10 2014-10-10 Hydraulic cylinder with integrated balancing valve Expired - Lifetime DE202014008147U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202014008147.6U DE202014008147U1 (en) 2014-10-10 2014-10-10 Hydraulic cylinder with integrated balancing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202014008147.6U DE202014008147U1 (en) 2014-10-10 2014-10-10 Hydraulic cylinder with integrated balancing valve

Publications (1)

Publication Number Publication Date
DE202014008147U1 true DE202014008147U1 (en) 2014-11-17

Family

ID=52010832

Family Applications (1)

Application Number Title Priority Date Filing Date
DE202014008147.6U Expired - Lifetime DE202014008147U1 (en) 2014-10-10 2014-10-10 Hydraulic cylinder with integrated balancing valve

Country Status (1)

Country Link
DE (1) DE202014008147U1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69303478T2 (en) 1992-03-30 1996-11-28 Sjoerd St. Jacobiparochie Meijer HYDRAULIC DEVICE WITH SIMULTANEOUS CYLINDER

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69303478T2 (en) 1992-03-30 1996-11-28 Sjoerd St. Jacobiparochie Meijer HYDRAULIC DEVICE WITH SIMULTANEOUS CYLINDER

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R207 Utility model specification

Effective date: 20141224

R150 Utility model maintained after payment of first maintenance fee after three years
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R152 Utility model maintained after payment of third maintenance fee after eight years