DE1230532B - Hydraulic cylinder - Google Patents

Hydraulic cylinder

Info

Publication number
DE1230532B
DE1230532B DEH57232A DEH0057232A DE1230532B DE 1230532 B DE1230532 B DE 1230532B DE H57232 A DEH57232 A DE H57232A DE H0057232 A DEH0057232 A DE H0057232A DE 1230532 B DE1230532 B DE 1230532B
Authority
DE
Germany
Prior art keywords
ball
piston
hydraulic cylinder
cylinder
centering
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
DEH57232A
Other languages
German (de)
Inventor
Peter Reinhardt
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.)
Walter Hunger K G
Original Assignee
Walter Hunger K G
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 Walter Hunger K G filed Critical Walter Hunger K G
Priority to DEH57232A priority Critical patent/DE1230532B/en
Publication of DE1230532B publication Critical patent/DE1230532B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25Constructional features
    • B66F3/36Load-engaging elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/16Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
    • B60P1/162Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms the hydraulic system itself
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1457Piston rods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149Fluid interconnections, e.g. fluid connectors, passages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Hydraulikzylinder Zum Anheben und Absenken von Wechselpritschen auf Fahrzeugrahmen oder von Sattelaufliegern auf Hinterachsaggregaten werden unter anderem Hydraulikzylinder verwendet.Hydraulic cylinder For raising and lowering swap bodies Vehicle frames or semi-trailers on rear axle assemblies are among other things Hydraulic cylinder used.

Beim Einfahren des Fahrzeugrahmens oder des Hinterachsaggregates unter die auf Stützen abgestellten Wechselpritschen oder unter die Sattelauflieger ist ein Versatz in Längs- oder Querrichtung zueinander nicht zu vermeiden. Es sind deshalb Einführungsstücke (Zentrierplatten) an dem Aufbau angebracht, die im letzten Teil des Absenkvorganges die Wechselpritschen oder den Auflieger zentrieren. Dabei werden diese quer oder längs auf den Hydraulikzylindern verschoben.When retracting the vehicle frame or the rear axle assembly under the swap bodies placed on supports or under the semi-trailers an offset in the longitudinal or transverse direction to one another cannot be avoided. It is therefore Insertion pieces (centering plates) attached to the structure in the last part center the swap bodies or the trailer during the lowering process. Be there these moved across or lengthways on the hydraulic cylinders.

Besonders bei beladenen Wechselpritschen oder Aufliegern treten infolge der Reibung zwischen den Einführungsstücken (Zentrierplatten) und dem oberen Ende des Kolbens des Hydraulikzylinders große Querkräfte auf, die den Hubkolben belasten.This occurs particularly with loaded swap bodies or trailers the friction between the insertion pieces (centering plates) and the upper end of the piston of the hydraulic cylinder on large transverse forces that load the reciprocating piston.

Zur Zentrierung und Einführung von Wechselaufbauten bei der Aufnahme durch das Fahrzeug oder bei deren Absetzen sind verschiedene Lösungen bekannt. Man verwendet z. B. Rollen, die am oberen Ende einer mechanischen oder hydraulischen Hubvorrichtung ein Verschieben der Wechselaufbauten in nur einer Richtung ermöglichen. Wenn solche Rollen am Wechselaufbau selbst angebracht sind, dienen sie auch nur zur Einführung und Längsverschiebung auf dem aufnehmenden oder absetzenden Fahrzeug.For centering and introducing interchangeable bodies when picking up by the vehicle or when it is set down, various solutions are known. Man used e.g. B. Rollers at the top of a mechanical or hydraulic Lifting device enable the swap bodies to be moved in only one direction. If such roles are attached to the swap body itself, they only serve for introduction and longitudinal displacement on the picking up or setting down vehicle.

Es ist auch bekannt, an den Enden eines hydraulischen Hubaggregates je eine Kugel anzuordnen, die es gestatten, den Zylinder nach allen Seiten zu neigen. Diese Kugeln sind aber nicht durch das Druckmedium beaufschlagt.It is also known at the ends of a hydraulic lifting unit to arrange a ball each, which allow the cylinder to be tilted in all directions. However, these balls are not acted upon by the pressure medium.

Aufgabe der Erfindung ist es, die auftretenden Längs- und Querbewegungen beim Zentrieren des Wechselaufbaus auf die aufnehmenden Hubzylinder möglichst reibungsfrei und ohne Beanspruchung des Kolbens des Hubzylinders aufnehmen zu lassen.The object of the invention is to control the longitudinal and transverse movements that occur as frictionless as possible when centering the swap body on the lifting cylinder and without stressing the piston of the lifting cylinder.

Die Erfindung geht dabei von einem Hubzylinder aus, der am äußeren Kolbenstangenende ein Kugellager aufweist. Die reibungsfreie Aufnahme der auftretenden Seitenkräfte wird dadurch erzielt, daß diese Kugel über eine im Hubkolben befindliche Bohrung vom Druckmedium beaufschlagt wird, das sich im Zylinderraum befindet. Aus diesem Grund ist das obere Ende des Hubkolbens geteilt, um dort eine Abdichtung aufnehmen zu können.The invention is based on a lifting cylinder on the outer Piston rod end has a ball bearing. The smooth recording of the occurring Lateral forces are achieved in that this ball is located in the reciprocating piston Bore is acted upon by the pressure medium, which is located in the cylinder space. the end For this reason, the upper end of the reciprocating piston is split to create a seal to be able to record.

Beim Aufnehmen des Aufbaus und Berührung der Zentrierplatte mit der Kugel entsteht an der Kolbendruckfläche ein Druck, der der Last entspricht. Derselbe Druck beaufschlagt über die erwähnte Bohrung die Kugel. Durch Wahl des Kugeldurchmessers analog dem Kolbendurchmesser sind die wirksamen Flächen des Kolbens und der Kugel gleich. Damit ist also die Kugel druckausgeglichen, und sie kann ihre Aufgabe erfüllen, sich in dem Lager annähernd reibungsfrei zu drehen. Hierdurch wird die Zentrierplatte des Aufbaus veranlaßt, sich mit ihrer tiefsten Stelle auf die Kugel zu setzen und dadurch den Aufbau zu zentrieren.When picking up the structure and touching the centering plate with the Ball creates a pressure on the piston pressure surface that corresponds to the load. Same Pressure is applied to the ball via the hole mentioned. By choosing the ball diameter The effective areas of the piston and the ball are analogous to the piston diameter same. So the ball is pressure balanced and it can do its job, to rotate in the camp with almost no friction. This creates the centering plate of the structure causes it to sit on the ball with its deepest point and thereby centering the structure.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.An exemplary embodiment of the invention is shown in the drawing.

In einem Zylinder 1 ist der Kolben 2 geführt. Der Kopf 3 des Kolbens ist als Kugelpfanne ausgebildet, in der eine Kugel 5 gelagert ist. Auf das obere Ende des Kolbens ist eine der Kugelform angepaßte Platte 4 aufgesetzt, in der ein Dichtring 6 so eingesetzt ist, daß die Dichtwirkung am waagerechten Durchmesser der Kugel erfolgt. Der Hubkolben 2 ist mit einer Bohrung 7 versehen, über die die Kugel 5 durch den im Zylinderraum 8 herrschenden Druck beaufschlagt wird.The piston 2 is guided in a cylinder 1. The head 3 of the piston is designed as a ball socket in which a ball 5 is mounted. On the upper one At the end of the piston, a plate 4 adapted to the spherical shape is placed in which a Sealing ring 6 is inserted so that the sealing effect on the horizontal diameter the ball takes place. The reciprocating piston 2 is provided with a bore 7 through which the Ball 5 is acted upon by the pressure prevailing in the cylinder space 8.

Claims (2)

Patentansprüche: 1. Hydraulikzylinder mit einem Kugellager am äußeren Kolbenstangenende, d a d u r c h g e -kennzeichnet, daß die Kugel (5) über eine im Hubkolben (2) befindliche Bohrung (7) ständig vom Druckmedium beaufschlagt wird, das sich im Zylinderraum (8) befindet. Claims: 1. Hydraulic cylinder with a ball bearing on the outside Piston rod end, d a d u r c h g e - indicates that the ball (5) has a the bore (7) in the reciprocating piston (2) is constantly acted upon by the pressure medium, which is located in the cylinder space (8). 2. Hydraulikzylinder nach Anspruch 1, dadurch gekennzeichnet, daß die Projektion der Kugel (5) gleich groß der wirksamen Druckfläche des Kolbens (2) ist. In Betracht gezogene Druckschriften: Schweizerische Patentschrift Nr. 286 974; britische Patentschrift Nr. 506186.2. Hydraulic cylinder according to claim 1, characterized characterized in that the projection of the ball (5) is equal to the effective pressure area of the piston (2). Publications considered: Swiss patent specification No. 286,974; British Patent No. 506186.
DEH57232A 1965-09-22 1965-09-22 Hydraulic cylinder Pending DE1230532B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH57232A DE1230532B (en) 1965-09-22 1965-09-22 Hydraulic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH57232A DE1230532B (en) 1965-09-22 1965-09-22 Hydraulic cylinder

Publications (1)

Publication Number Publication Date
DE1230532B true DE1230532B (en) 1966-12-15

Family

ID=7159684

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH57232A Pending DE1230532B (en) 1965-09-22 1965-09-22 Hydraulic cylinder

Country Status (1)

Country Link
DE (1) DE1230532B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012013836A2 (en) * 2010-07-26 2012-02-02 Azol-Gas, S. L. Gas spring with pivoting cover

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB506186A (en) * 1937-12-09 1939-05-24 Walter Vernon Gledhill Improvements in means for handling loads
CH286974A (en) * 1950-12-29 1952-11-15 Amsler Alfred J & Co Hydraulic jack.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB506186A (en) * 1937-12-09 1939-05-24 Walter Vernon Gledhill Improvements in means for handling loads
CH286974A (en) * 1950-12-29 1952-11-15 Amsler Alfred J & Co Hydraulic jack.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012013836A2 (en) * 2010-07-26 2012-02-02 Azol-Gas, S. L. Gas spring with pivoting cover
WO2012013836A3 (en) * 2010-07-26 2013-04-11 Azol-Gas, S. L. Gas spring with pivoting cover

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