DE2459560A1 - Cylinder with non rotatable piston rod - has piston rod and matching seal of polygon shape - Google Patents

Cylinder with non rotatable piston rod - has piston rod and matching seal of polygon shape

Info

Publication number
DE2459560A1
DE2459560A1 DE19742459560 DE2459560A DE2459560A1 DE 2459560 A1 DE2459560 A1 DE 2459560A1 DE 19742459560 DE19742459560 DE 19742459560 DE 2459560 A DE2459560 A DE 2459560A DE 2459560 A1 DE2459560 A1 DE 2459560A1
Authority
DE
Germany
Prior art keywords
piston rod
cylinder
section
seal
polygon shape
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
DE19742459560
Other languages
German (de)
Inventor
Geb Wolk Johanna Heller
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.)
HELLER HERIBERT
Original Assignee
HELLER HERIBERT
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 HELLER HERIBERT filed Critical HELLER HERIBERT
Priority to DE19742459560 priority Critical patent/DE2459560A1/en
Publication of DE2459560A1 publication Critical patent/DE2459560A1/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
    • 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
    • F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
    • 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
    • F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
    • F15B15/1419—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston of non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02—Cylinders designed to receive moving pistons or plungers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Actuator (AREA)

Abstract

The seal, when built-in, has a cross-section, corresponding to that of the piston rod. The gland in the cylinder head also has a corresponding cross-section. The cylinder is a hydraulic or pneumatic drive cylinder where rotary movement is to be avoided. The section is a polygonal profile, but may have rounded corners to assist the operation of the seal.

Description

Zylinder mit gegen Verdrehung gesicherter Kolbenstange Die Erfindung betrifft einen Zylinder mit gegen Verdrehung gesicherter Kolbenstange.Cylinder with piston rod secured against rotation. The invention relates to a cylinder with a piston rod secured against rotation.

Bei bestimmten konstruktiven Aufgabenstellungen beim Einbau von Hydraulik- oder Pneumatikzylindern ist die Forderung gegeben, daß sich die Kolbenstange im Zylinder nicht verdrehen darf. Dies wird üblicherweise dadurch gelöst, daß von außen angebrachte Maschinenteile (Führungsstange, Anlagefläcbe usw.) als Verdrehsicherung der Kolbenstange dienen. Diese haben jedoch den Nachteil, daß neben dem Zylinder ein zusätzlicher Platzbedarf entsteht, die Konstruktion zum Teil erheblich verteuert und auch das Aussehen der Konstrukt-ion verschlechtert wird.For certain structural tasks when installing hydraulic or pneumatic cylinders, the requirement is that the piston rod is in the Do not twist the cylinder. This is usually solved by the fact that from the outside Attached machine parts (guide rod, contact surface, etc.) as an anti-twist device serve the piston rod. However, these have the disadvantage that in addition to the cylinder an additional space requirement arises, the construction is in some cases considerably more expensive and the appearance of the construction is also deteriorated.

Der Erfindung liegt die Aufgabe zugrunde, die Kolbenstange auf einfache, sichere und wirtschaftliche Weise gegen Verdrehung im Zylinder zu sichern.The invention is based on the object of the piston rod in a simple, safe and economical way to secure against twisting in the cylinder.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kolbenstange einen nicht kreisrunden Querschnitt aufweist.This object is achieved according to the invention in that the piston rod has a non-circular cross-section.

Um die Kolbenstange gegen das Druckmedium abzudichten, ist die Dichtung so gestaltet, daß sie im eingebauten Zustand denselben Querschnitt wie die Kolbenstange aufweist. Die Führung der Kolbenstange wird durch die in gleicher eise nicht kreisrunde Nabe evtl. mit Führungsbuchse im Zylinderdeckel übernommen. Als Kolbenstangenquerschnitt ist beispielsweise ein Polygonprofil sehr gut geeignet, da hierfür geeignete Maschinen zur herstellung bereits auf dem I|arkt sind. Auch kann sich eine Dichtung an dieses Profil gut anlegen.The seal is used to seal the piston rod against the pressure medium designed so that they have the same cross-section as the piston rod when installed having. The guide of the piston rod is not circular in the same way Hub possibly taken over with guide bush in the cylinder cover. as Piston rod cross-section, for example, a polygon profile is very suitable, because suitable machines for the production are already on the market. Even a seal can fit this profile well.

Der Vorteil dieser Erfindung besteht darin, daß die Kolbenstange gegen Verdrehung gesichert ist, ohne daß irgendwelche äußere i-aschinenteile zur Sicherung erforderlich sindo nin Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.The advantage of this invention is that the piston rod against Rotation is secured without any external I-Aschinenteile to secure Required are nin embodiment of the invention is shown in the drawing and is described in more detail below.

Zs ist dargestellt in: Fig.l ein Querschnitt durch einen Zylinder Fig.9 Draufsicht auf Fig.l Die Kolbenstange(l), die in diesem Falle ein Polygon Profil aufweist, ist im Deckel des Zylinders(4) geführt, dessen Nabe dasselbe Folygon-Profil hat. Auch die Dichtung(2) ist so gestaltet, daß sie sich an die Kolbenstange(l) anlegt. Der kreisrunde Querschnitt des Kolbens(3) und des Zylinders(4) kann wie üblich beibehalten werden.Zs is shown in: Fig.l a cross section through a cylinder Fig.9 top view of Fig.l the piston rod (l), which in this case is a polygon Has profile is guided in the cover of the cylinder (4), the hub of which has the same Folygon profile Has. The seal (2) is also designed in such a way that it rests on the piston rod (l) applies. The circular cross-section of the piston (3) and the cylinder (4) can as are usually retained.

Claims (3)

Patentansprüche:Patent claims: 1. Zylinder mit gegen Verdrehung gesicherter Kolbenstange(l), dadurch gekennzeichnet, daß die Kolbenstange einen nicht kreisrunden verschnitt aufweist.1. Cylinder with piston rod secured against rotation (l), thereby characterized in that the piston rod has a non-circular cut. So Zylinder nach Anspruch 1, dadurch gekennzeichnet, daß die Dichtung(2) im eingebauten Zustand denselben Querschnitt wie die Kolbenstange(l) aufweist.So cylinder according to claim 1, characterized in that the seal (2) when installed has the same cross-section as the piston rod (l). 3. Zylinder nach Anspruch 1 und 9, dadurch gekennzeichnet, daß die Nabe im Zylinderdeckel denselben Xuerschnitt wie die Eolbenstange(l) aufweist. 3. Cylinder according to claim 1 and 9, characterized in that the The hub in the cylinder cover has the same cross-section as the piston rod (l). LeerseiteBlank page
DE19742459560 1974-12-17 1974-12-17 Cylinder with non rotatable piston rod - has piston rod and matching seal of polygon shape Pending DE2459560A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742459560 DE2459560A1 (en) 1974-12-17 1974-12-17 Cylinder with non rotatable piston rod - has piston rod and matching seal of polygon shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742459560 DE2459560A1 (en) 1974-12-17 1974-12-17 Cylinder with non rotatable piston rod - has piston rod and matching seal of polygon shape

Publications (1)

Publication Number Publication Date
DE2459560A1 true DE2459560A1 (en) 1976-06-24

Family

ID=5933610

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742459560 Pending DE2459560A1 (en) 1974-12-17 1974-12-17 Cylinder with non rotatable piston rod - has piston rod and matching seal of polygon shape

Country Status (1)

Country Link
DE (1) DE2459560A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523515A (en) * 1981-12-31 1985-06-18 Apv Company Limited Valve operating cylinder unit
EP0212299A2 (en) * 1985-08-21 1987-03-04 Carl Schenck Ag Hydraulic power actuator with a non-rotating piston rod and a hydrostatic bearing
EP0670427A1 (en) * 1994-02-05 1995-09-06 Festo KG Fluid actuated transfer unit
DE10319260A1 (en) * 2003-04-28 2004-12-02 Leonair Gmbh Damper device for buffer units in automatic conveyors and machining appliances has hollow first guide element containing non-turnable sliding second guide element with partially enclosed damper element
US9903668B2 (en) 2012-10-30 2018-02-27 Alfa Laval Corporate Ab Gasket and assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523515A (en) * 1981-12-31 1985-06-18 Apv Company Limited Valve operating cylinder unit
EP0212299A2 (en) * 1985-08-21 1987-03-04 Carl Schenck Ag Hydraulic power actuator with a non-rotating piston rod and a hydrostatic bearing
EP0212299B1 (en) * 1985-08-21 1989-10-04 Carl Schenck Ag Hydraulic power actuator with a non-rotating piston rod and a hydrostatic bearing
EP0670427A1 (en) * 1994-02-05 1995-09-06 Festo KG Fluid actuated transfer unit
DE10319260A1 (en) * 2003-04-28 2004-12-02 Leonair Gmbh Damper device for buffer units in automatic conveyors and machining appliances has hollow first guide element containing non-turnable sliding second guide element with partially enclosed damper element
US9903668B2 (en) 2012-10-30 2018-02-27 Alfa Laval Corporate Ab Gasket and assembly

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