DE809874C - Sliding connection consisting of piston and cylinder or slide and slide grate or the like. - Google Patents

Sliding connection consisting of piston and cylinder or slide and slide grate or the like.

Info

Publication number
DE809874C
DE809874C DEP23971A DEP0023971A DE809874C DE 809874 C DE809874 C DE 809874C DE P23971 A DEP23971 A DE P23971A DE P0023971 A DEP0023971 A DE P0023971A DE 809874 C DE809874 C DE 809874C
Authority
DE
Germany
Prior art keywords
slide
sliding connection
piston
cylinder
grate
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
Application number
DEP23971A
Other languages
German (de)
Inventor
Ernst Dr Moeller
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.)
KNORR BREMSE GmbH
Knorr Bremse AG
Original Assignee
KNORR BREMSE GmbH
Knorr Bremse AG
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 KNORR BREMSE GmbH, Knorr Bremse AG filed Critical KNORR BREMSE GmbH
Priority to DEP23971A priority Critical patent/DE809874C/en
Application granted granted Critical
Publication of DE809874C publication Critical patent/DE809874C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N15/00Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions
    • F16N15/02Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions with graphite or graphite-containing compositions

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Description

Gleitverbindung, bestehend aus Kolben und Zylinder bzw. Schieber und Schieberrost o. dgl. Die Reibung zwischen aufeinander gleitenden Körpern, wie z. B, Kolben und Zylindern oder Schiebern und Schieberrosten, wird meist durch eine Fettschmierung verringert, wobei jedoch die Temperaturempfindlichkeit des Fettes sich störend bemerkbar macht. Bei Kolbenstulpen aus Gummi und den dazugehörigen Zylindern ist deshalb immer wieder versucht worden, dem Werkstoffgefüge der Gummimanschetten einen hohen Anteil von kristallinischem Graphit zu geben, so daß eine temperaturunabhängige Reibung geringen Wertes gesichert wird. Man kann jedoch nicht beliebig hohe Prozentsätze dem Gummi beimengen, weil er sonst seine elastischen Eigenschaften verliert. Andererseits wurde auch schon versucht, durch Graphitieren der Laufflächen dasselbe zu erreichen, wobei sich aber die dünnen Graphitschichten leicht abschabten, weil sie sich, selbst mit Einbrennlacken aufgebracht, doch nicht in der notwendigen Härte herstellen lassen.Sliding connection, consisting of piston and cylinder or slide and Slider grate o. The like. The friction between bodies sliding on each other, such as. B, pistons and cylinders or slides and slide grids, is usually through a Grease lubrication is reduced, however, the temperature sensitivity of the grease makes itself noticeable in a disturbing way. For piston sleeves made of rubber and the associated Cylinders have therefore been tried again and again to improve the material structure of the rubber sleeves to give a high proportion of crystalline graphite, so that a temperature-independent Low friction is secured. However, the percentages cannot be arbitrarily high add to the rubber, otherwise it will lose its elastic properties. on the other hand Attempts have also been made to achieve the same thing by graphitizing the running surfaces, but the thin graphite layers peeled off easily because they, themselves Applied with stoving enamels, but not produced with the necessary hardness.

Demgegenüber wird die Aufgabe, die Reibung zwischen Kolben und Zylinder bzw. Schieber und Schieberspiegel o. dgl. in temperaturunabhängiger und die Werkstoffeigenschaften nicht nachteilig beeinflussender Weise zu verringern, gemäß der vorliegenden Erfindung dadurch gelöst, daß eine Gleitverbindung geschaffen wird, bei der mindestens eine der beiden Gleitflächen aus' einer hochgraphithaltigen Masse ausgebildet ist. Diese Masse besteht zu 85 bis 95% aus hochwertigem Graphit, der entsprechend den Anforderungen bezüglich der Festigkeit mit einer mehr oder weniger großen Menge an Bindemitteln versetzt ist. Bei einer aus Kolben und Zylinder bestehenden Gleitverbindung wird der letztere mit einer aus einer derartigen Masse hergestellten Laufbuchse ausgekleidet. Die auf diese Weise erzeugte Buchse kann eine Lauffläche von ganz bestimmter Härte und großer Gleichmäßigkeit aufweisen und zusätzlich noch' ;n it..$oh@ungen, Nuten u. dgl. versehen werden, die zum Beherrschen verschiedener Steuervorgänge notwendig sind. Die Befestigung der Laufbuchse kann z. B. durch Einpressen oder durch Eindichten mit Lack geschehen. In gleicher Weise kann bei einer aus einem Schieber und Schieberrost bestehenden Gleitverbindung durch Herstellung des Schieberrostes aus der hochgraphitischen Masse ein Schieberspiegel von hohen Härtegraden geschaffen werden, auf dem der Schieber mit nur geringer Reibung ohne zusätzliche Schmiermittel gleitet. ' Abschließend wird noch erwähnt, daß als Werkstoff des auf der Graphitmasse gleitenden Kolbens oder Schiebers Metalle (z.;B. Stahl, Aluminium, Rotguß) und Nichtmetalle (z. B. Kunststoffe, Gummi; Leder) in Frage kommen. Dieser Werkstoff keinute seinerseits ebenfalls Graphit enthalten.In contrast, the task is the friction between piston and cylinder or slide and slide mirror or the like in temperature-independent and the material properties in a non-detrimental manner, according to the present invention solved in that a sliding connection is created in which at least one of the two sliding surfaces is made of a high graphite compound. These The mass consists of 85 to 95% of high quality graphite, which is made according to the requirements in terms of strength with a more or less large amount of binders is offset. In the case of a sliding connection consisting of a piston and cylinder the latter with one made from such a mass Lined cylinder liner. The bushing produced in this way can be a tread of a certain hardness and great evenness and additionally still ' ; n it .. $ oh @ ungen, grooves and the like are provided, which are used to master various Control operations are necessary. The attachment of the liner can, for. B. by pressing or done by sealing with varnish. In the same way, one from one Slider and sliding grate existing sliding connection by producing the sliding grate A slide mirror with a high degree of hardness was created from the highly graphitic mass be on which the slide with only low friction without additional lubricant slides. Finally it is mentioned that the material used on the graphite mass sliding piston or slide metals (e .g. steel, aluminum, gunmetal) and non-metals (e.g. plastics, rubber; leather) come into question. This material is not for its part also contain graphite.

Claims (3)

PATEN TA NS PR ICHE: i. Aus Zvlinder und Kolben bz«-. Schieberund Schieberrost o. dgl. bestehende Gleitverbindung, dadurch gekennzeichnet, daß mindestens eine der beiden Gleitflächen aus einer Masse hergestellt ist, die entsprechend dem jeweiligen Verwendungszweck aus 85 bis 95°/o Graphit und den erforderlichen Bindemitteln besteht. PATEN TA NS PR ICHE: i. From cylinder and piston bz «-. Slide and slide grate or the like existing sliding connection, characterized in that at least one of the two sliding surfaces is made of a mass which, depending on the respective purpose, consists of 85 to 95% graphite and the required binding agents. 2. Gleitverbindung nach Anspruch i, dadurch gekennzeichnet, daß die Masse durch Einpressen in ihrem Tragteil befestigt wird. 2. Sliding connection according to claim i, characterized in that that the mass is fixed by pressing in its supporting part. 3. Gleitverbindung nach Anspruch i, dadurch gekennzeichnet, daß die Masse mittels Lack in ihrem Tragteil dichtend gehalten wird.3. Sliding connection according to claim i, characterized in that the mass by means of lacquer in its support part is kept sealed.
DEP23971A 1948-12-08 1948-12-08 Sliding connection consisting of piston and cylinder or slide and slide grate or the like. Expired DE809874C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP23971A DE809874C (en) 1948-12-08 1948-12-08 Sliding connection consisting of piston and cylinder or slide and slide grate or the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP23971A DE809874C (en) 1948-12-08 1948-12-08 Sliding connection consisting of piston and cylinder or slide and slide grate or the like.

Publications (1)

Publication Number Publication Date
DE809874C true DE809874C (en) 1951-08-02

Family

ID=7369445

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP23971A Expired DE809874C (en) 1948-12-08 1948-12-08 Sliding connection consisting of piston and cylinder or slide and slide grate or the like.

Country Status (1)

Country Link
DE (1) DE809874C (en)

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