DE102004017176A1 - Differential casing cylinder used as a hydraulic cylinder comprises a casing tube fixed to a hollow piston rod - Google Patents

Differential casing cylinder used as a hydraulic cylinder comprises a casing tube fixed to a hollow piston rod Download PDF

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Publication number
DE102004017176A1
DE102004017176A1 DE200410017176 DE102004017176A DE102004017176A1 DE 102004017176 A1 DE102004017176 A1 DE 102004017176A1 DE 200410017176 DE200410017176 DE 200410017176 DE 102004017176 A DE102004017176 A DE 102004017176A DE 102004017176 A1 DE102004017176 A1 DE 102004017176A1
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Germany
Prior art keywords
cylinder
oil
piston rod
differential
hollow piston
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DE200410017176
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German (de)
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Harry Gielnik
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Individual
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Individual
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Priority to DE200410017176 priority Critical patent/DE102004017176A1/en
Publication of DE102004017176A1 publication Critical patent/DE102004017176A1/en
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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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder

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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

Differential casing cylinder comprises a casing tube fixed to a hollow piston rod. Preferred Features: A pressurized oil line is not integrated in the cylinder head but in a hinged bolt. The free space between the casing tube and the cylinder tube can be hermetically sealed using sealing rings.

Description

In 1 ist ein solcher Zylinder im Halbschnitt und in der Grundstellung (Kolbenstange eingefahren) dargestellt.In 1 Such a cylinder is shown in half section and in the basic position (piston rod retracted).

In der 2 ist der gleiche Zylinder mit fast bis zum Zylinderkopf ausgefahrener Kolbenstange ebenfalls im Halbschnitt dargestellt.In the 2 is the same cylinder with almost to the cylinder head extended piston rod also shown in half section.

Im einzelnen bedeuten die Teile 1 = Zylinderboden, Teil 2 = Zylinderrohr, Teil 3 = Hohlkolbenstange, Teil 4 ist eine in die Hohlkolbenstange hinein ragende Öllanze, Teil 5 ist der eingeschraubte Zylinderkopf mit integrierter Stangendichtung, Abstreifring, Führungsbuchse und O-Ring, Teil 6 ist das Schutzrohr, Teil 7 ist eine Verschlußschraube im Kolben mit integrierten 2 Stück Stangendichtungen und einer O-Ringabdichtung, diese dichtet die Räume „K", „L" und „R" hermetisch in Richtung „D" ab.In detail, the parts mean 1 = Cylinder bottom, part 2 = Cylinder tube, part 3 = Hollow piston rod, part 4 is a projecting into the hollow piston rod in oil lance, part 5 is the screwed cylinder head with integrated rod seal, scraper ring, guide bushing and O-ring, part 6 is the protective tube, part 7 is a plug in the piston with integrated 2-piece rod seals and an O-ring seal, this hermetically seals the spaces "K", "L" and "R" in direction "D".

Teil 10 ist ein durchgehender Gelenkbolzen mit den Ringnuten Teil 11–12 und 13 zur Aufnahme der Dicht- und Stützringe.part 10 is a continuous hinge pin with the annular grooves part 11 - 12 and 13 for receiving the sealing and support rings.

Diese Dicht- und Stützringe dichten den drehbaren Gelenkbolzen Teil 10 nach außen hin ab und verhindern außerdem den Ölaustausch zwischen den Anschlüssen „D" und „Z".These sealing and support rings seal the rotatable hinge pin part 10 to the outside and also prevent the oil exchange between the terminals "D" and "Z".

„A" ist eine Ringnut im Gelenkbolzen Teil 10 mit einem Ölanschluß durch die Anschlußbohrung „Z" und reicht bis zum zentrisch im Zylinderboden Teil 1 eingebrachten Öllanzenkanal „Y"."A" is an annular groove in the hinge pin part 10 with an oil connection through the connection hole "Z" and extends to the center in the cylinder bottom part 1 introduced oil dance channel "Y".

„B" ist eine Ringnut im Gelenkbolzen Teil 10 mit Ölanschluß durch die Anschlußbohrung „D" und reicht bis zum Ölkanal „X" im Zylinderboden Teil 1 und mündet in den Bodenraum „Q"."B" is an annular groove in the hinge pin part 10 with oil connection through the connection hole "D" and extends to the oil channel "X" in the cylinder bottom part 1 and flows into the floor space "Q".

„L" ist hierbei der Ölkanal in der Öllanze Teil 4, „K" ist der Öl führende Kolbenstangenraum, „R" ist der Öl-Rückraum für den Rücklauf der Hohlkolbenstange Teil 3, „Ü" ist eine von drei Überströmbohrungen in der Hohlkolbenstange Teil 3, durch die das Öl von „K" nach „R" und auch zurück von „R" nach „K" fließt."L" here is the oil passage in the oil lance part 4 , "K" is the oil-carrying piston rod space, "R" is the oil return chamber for the return of the hollow piston rod part 3 , "Ü" is one of three overflow holes in the hollow piston rod part 3, through which the oil flows from "K" to "R" and also back from "R" to "K".

„D" und „Z" sind die beiden Anschlußbohrungen für das Drucköl um den Zylinder ein- und auszufahren."D" and "Z" are the two connection bores for the pressure oil to move the cylinder in and out.

Das Schutzrohr Teil 6 ist fest mit der Hohlkolbenstange Teil 3 verbunden und bewegt sich gleich der Kolbenstangenbewegungen und schützt die Hohlkolbenstange Teil 3 in jeder Zylinderstellung gegen äußere Einflüsse.The thermowell part 6 is fixed to the hollow piston rod part 3 connected and moves equal to the piston rod movements and protects the hollow piston rod part 3 in every cylinder position against external influences.

Funktion des Zylinders:Function of the cylinder:

Wenn der Zylinder bei „D" mit Öl beaufschlagt wird, fährt der Kolben mit integrierter Hohlkolbenstange Teil 3 so lange in Richtung Zylinderkopf Teil 5 wie der Ölstrom anhält, jedoch höchstens bis zu seinem Endanschlag.When the cylinder is pressurized with oil at "D", the piston with integrated hollow piston rod moves in part 3 as long towards the cylinder head part 5 as the flow of oil stops, but at most until its end stop.

Das Öl fließt hierbei durch die Bohrung „D" bis zur Ringnut „B", über den Ölkanal „X" in den Bodenraum „Q".The oil flows here through the hole "D" to the ring groove "B", via the oil channel "X" into the floor space "Q".

Wird der Zylinder bei „Z" mit Öl beaufschlagt, so fließt das Öl bis zur Ringnut „A", weiter durch den Ölkanal „Y" und den Ölkanal „L" weiter in den Raum „K" und durch die Überströmbohrungen „Ü" in den Kolbenrückraum „R" und befördert dadurch den Kolben mit der Hohlkolbenstange Teil 3 in die Ausgangsstellung zurück.If the cylinder is pressurized with oil at "Z", the oil flows up to the ring groove "A", continues through the oil channel "Y" and the oil channel "L" into the chamber "K" and through the overflow holes "Ü" in the piston rear space "R" and thereby promotes the piston with the hollow piston rod part 3 back to the starting position.

Claims (7)

Differential-Mantelzylinder dadurch gekennzeichnet, daß ein fest mit der Hohlkolbenstange Teil 3 verbundenes Mantelrohr Teil 6 in keiner Kolbenstangenstellung die empfindliche Hohlkolbenstange Teil 3 frei gibt und somit ständig gegen äußere Einflüsse schützt.Differential shell cylinder characterized in that a fixed to the hollow piston rod part 3 connected jacket pipe part 6 in no piston rod position the sensitive hollow piston rod part 3 free and thus constantly protects against external influences. Differential-Mantelzylinder nach Anspruch 1, dadurch gekennzeichnet, daß die Druckölleitung für den Zylinderrücklauf nicht im Zylinderkopf Teil 5 integriert ist, sondern im drehbaren Gelenkbolzen Teil 10 bei „Z" und über die Ringnut „B" durch den Ölkanal „X" bis in den Bodenraum „Q" führt.Differential cylinder according to claim 1, characterized in that the pressure oil line for the cylinder return not in the cylinder head part 5 is integrated, but in the rotatable hinge pin part 10 at "Z" and over the annular groove "B" through the oil channel "X" into the floor space "Q" leads. Differential-Mantelzylinder nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß im Zentrum des Zylinderbodens Teil 1, eine Öllanze Teil 4 fest und öldicht eingebaut ist und mit ihrem anderen Ende in die Hohlkolbenstange Teil 3 hineinkragt.Differential shell cylinder according to claims 1 and 2, characterized in that in the center of the cylinder bottom part 1 , an oil lance part 4 fixed and oil-tight is installed and with its other end in the hollow piston rod part 3 hineinkragt. Differential-Mantelzylinder nach den Ansprüchen 1,2 und 3, dadurch gekennzeichnet, daß das einfließende Drucköl von „Z" aus über die Ringnut „A" durch den Ölkanal „Y" in den Lanzenraum „L", weiter in den Raum „K", durch die Überströmbohrungen „Ü" bis in den Rückraum „R" fließt und hierbei durch die beiden Dichtringe und O-Ringe in der Verschlußschraube Teil 7 integriert, den Durchfluß zu dem Bodenraum „Q" verhindert.Differential cylinder according to claims 1,2 and 3, characterized in that the inflowing pressure oil from "Z" out of the annular groove "A" through the oil passage "Y" in the lance space "L", further in the space "K" , flows through the overflow holes "Ü" to the back space "R" and in this case by the two sealing rings and O-rings in the screw plug part 7 integrated, the flow to the floor space "Q" prevented. Differential-Mantelzylinder nach den Ansprüchen 1 bis 4 dadurch gekennzeichnet, daß auch der Freiraum zwischen dem Mantelrohr Teil 6 und Zylinderrohr Teil 2 mittels Dichtringen hermetisch abgeschlossen werden kann.Differential cylinder jacket according to claims 1 to 4, characterized in that also the free space between the tubular casing part 6 and cylinder tube part 2 can be hermetically sealed by means of sealing rings. Differential-Mantelzylinder nach den Ansprüchen 1 bis 5 dadurch gekennzeichnet, daß beide Druckölanschlüsse „D" und „Z" im drehbarem Gelenkbolzen Teil 10, gelagert im Zylinderboden Teil 1 so angeordnet sind, daß starre und äußerst feste Rohrleitungen als Öl-Zuleitungen verlegt und im Bedarfsfall auch noch zusätzlich armiert werden können.Differential cylinder according to claims 1 to 5, characterized in that both Pressure oil connections "D" and "Z" in the pivotable hinge pin part 10 , stored in the cylinder bottom part 1 are arranged so that rigid and extremely rigid pipelines laid as oil supply lines and, if necessary, can be additionally reinforced. Differential-Mantelzylinder nach den Ansprüchen 1 bis 6 dadurch gekennzeichnet, daß alle Zylinder, auch wenn diese bei ihrem Arbeitshub einen Schwenkradius von 180° ausführen müssen, ausschließlich mit starren Öl-Zuleitungen versorgt werden.Differential cylinder according to claims 1 to 6, characterized that all Cylinders, even if they have a swing radius during their stroke of 180 °, exclusively with supplied with rigid oil supply lines become.
DE200410017176 2004-03-26 2004-03-26 Differential casing cylinder used as a hydraulic cylinder comprises a casing tube fixed to a hollow piston rod Withdrawn DE102004017176A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200410017176 DE102004017176A1 (en) 2004-03-26 2004-03-26 Differential casing cylinder used as a hydraulic cylinder comprises a casing tube fixed to a hollow piston rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410017176 DE102004017176A1 (en) 2004-03-26 2004-03-26 Differential casing cylinder used as a hydraulic cylinder comprises a casing tube fixed to a hollow piston rod

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004615A1 (en) 2007-01-30 2008-07-31 Robert Bosch Gmbh Hydraulic cylinder, has rotating duct that is arranged between pressure medium connection and pressure chamber in pressure medium flow path, and swivel pin channel that penetrates swivel pin
DE102012109091A1 (en) * 2012-09-26 2014-03-27 Haane Industriedesign Gmbh Hydraulic cylinder mounted in pivotal arm of tilting and construction machines, has protective tube that includes rectangular cross-section accessed in every operating position of piston on working cylinder
DE202023000192U1 (en) 2023-01-27 2024-04-30 Bümach Engineering International B.V. Working cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004615A1 (en) 2007-01-30 2008-07-31 Robert Bosch Gmbh Hydraulic cylinder, has rotating duct that is arranged between pressure medium connection and pressure chamber in pressure medium flow path, and swivel pin channel that penetrates swivel pin
DE102012109091A1 (en) * 2012-09-26 2014-03-27 Haane Industriedesign Gmbh Hydraulic cylinder mounted in pivotal arm of tilting and construction machines, has protective tube that includes rectangular cross-section accessed in every operating position of piston on working cylinder
DE202023000192U1 (en) 2023-01-27 2024-04-30 Bümach Engineering International B.V. Working cylinder

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