DE598485C

DE598485C -

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Publication number: DE598485C
Application number: DENDAT598485D
Authority: DE

Description

DEUTSCHES REICHGERMAN EMPIRE

AUSGEGEBEN AI
14. JUNI 1934ISSUE AI
June 14, 1934

REICHSPATENTAMTREICH PATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

M 598485 KLASSE 20 e GRUPPE M 598485 CLASS 20 e GROUP

K 12625? II/20 e Tag der Bekanntmachung über die Erteilung des Patents: 24. MaiK 12625? II / 20e Date of publication of the patent grant: May 24th

Fried. Krupp Akt.-Ges. in Essen*) Reibungsvorrichtung für großen Stoßverzehr, insbesondere für EisenbahnfahrzeugeFried. Krupp Akt.-Ges. in Essen *) Friction device for large shock absorption, especially for railway vehicles

Patentiert im Deutschen Reiche vom 17. Juli 1932 abPatented in the German Empire on July 17, 1932

Es ist bereits bekannt, bei Reibungsvorrichtungen für großen Stoßverzehr, insbesondere für Eisenbahnfahrzeuge, die Reibelemente zwischen einer Rückholfeder und einer unter der Wirkung einer Feder stehenden Spannvorrichtung einzuschalten. Diese Vorrichtungen leiden aber an dem Nachteil, daß sich die Reibflächen aneinander festfressen, so daß sie dann auch durch etwa vorhandene Lösefedern nicht in ihre Anfangslage zurückbewegt werden können. Durch die Erfindung wird dieser Nachteil dadurch vermieden, daß die Spannvorrichtung besondere, durch ein Druckstück gegen die Reibelemente gepreßte Spreizkörper aufweist. Es sind zwar schon zu diesem Zweck ausgebildete Puffer bekannt, sie weisen aber andere Mittel auf, und der Druck auf die Pufferfeder wird durch Rollen übertragen, die auch nicht als Spreizkörper wirken und insbesondere ein Festfressen der Reibflächen nicht so gut verhindern können. Die Abb. 1 bis 14 stellen fünf Ausführungsbeispiele des Erfindungsgegenstandes dar, und zwar zeigen:It is already known in friction devices for large shock absorption, in particular for railway vehicles, the friction elements between a return spring and an underneath to switch on the action of a spring tensioning device. These devices but suffer from the disadvantage that the friction surfaces seize together, so that they are then not moved back to their initial position by any release springs that may be present can be. By the invention, this disadvantage is avoided in that the clamping device special, by a Has pressure piece pressed against the friction elements expanding body. It is true known for this purpose trained buffer, but they have other means, and the Pressure on the buffer spring is transmitted by rollers, which also do not act as an expanding body act and in particular cannot prevent the friction surfaces from seizing up so well. Figs. 1 to 14 represent five exemplary embodiments of the subject matter of the invention, namely show:

Abb. ι das erste Ausführungsbeispiel im axialen Längsschnitt,Fig. Ι the first embodiment in axial longitudinal section,

Abb. 2 den Schnitt nach H-II der Abb. 1, von links gesehen,Fig. 2 the section according to H-II of Fig. 1, seen from the left,

Abb. 3 das zweite Ausführungsbeispiel im axialen Längsschnitt,Fig. 3 the second embodiment in axial longitudinal section,

Abb. 4 den Schnitt nach IV-IV der Abb. 3, von links gesehen,Fig. 4 the section IV-IV of Fig. 3, seen from the left,

Abb. 5 das dritte Ausführungsbeispiel im axialen Längsschnitt,Fig. 5 the third embodiment in axial longitudinal section,

Abb. 6 und 7 Schnitte nach VI-VI und VII-VII der Abb. 6, von links gesehen,Fig. 6 and 7 sections according to VI-VI and VII-VII of Fig. 6, seen from the left,

Abb. 8 das vierte Ausführungsbeispiel im axialen Längsschnitt,Fig. 8 the fourth embodiment in axial longitudinal section,

Abb. 9 und 10 Schnitte nach IX-IX bzw. X-X der Abb. 8, von links gesehen,Fig. 9 and 10 sections after IX-IX resp. X-X of Fig. 8, seen from the left,

Abb. 11 das fünfte Ausführungsbeispiel, ebenfalls im axialen Längsschnitt,Fig. 11 the fifth embodiment, also in an axial longitudinal section,

Abb. 12 bis 14 Schnitte XII-XII, XIII-XIII und XIV-XIV der Abb. n, von rechts gesehen. Fig. 12 to 14 sections XII-XII, XIII-XIII and XIV-XIV of Fig. n, seen from the right.

Abb. ι und 2 zeigen eine Ausführung, die lediglich einen Verzehr von Druckkräften gestattet. Die Druckstange A einer Zug- und Stoßvorrichtung für Eisenbahnfahrzeuge hat einen Bund α¹, gegen den sich unter Einwirkung einer Feder B eine Mitnehmerplatte C abstützt. Diese kommt bei entspannter Vorrichtung gleichzeitig an Anschlägen d¹ des Gehäuses D zur Anlage. Die Feder B wirkt mit ihrem anderen Ende auf ein Druckstück E, dessen keilförmige Flächen e¹ durch Rollen F mit Reibelementen G in Verbindung stehen. Die Rollen F sind in Mulden g¹ der Reibelemente G gelagert. Die Reibelemente G legen sich mit ihren Reibflächen g- gegenFig. Ι and 2 show an embodiment that only allows the consumption of compressive forces. The push rod A of a pulling and pushing device for railway vehicles has a collar α ¹ , against which a driver plate C is supported under the action of a spring B. When the device is relaxed, this comes to rest against stops d ^{1 of} the housing D at the same time. The other end of the spring B acts on a pressure piece E, the wedge-shaped surfaces e ^{1 of which are} connected to friction elements G by rollers F. The rollers F are mounted in troughs g ^{1 of} the friction elements G. The friction elements G lie against one another with their friction surfaces g

*) Von dem Patent such er ist als der Erfinder angegeben worden:*) He has been named as the inventor of the patent:

Dipl.-Ing. Heinrich Egen in Essen.Dipl.-Ing. Heinrich Egen in Essen.

Claims

Friction surfaces dr of the housing D. The base surfaces of these troughs g1 form an angle with the wedge surfaces e1 of the pressure pieces E in such a way that the rollers F are pressed firmly against the friction elements G when the spring B presses against the pressure piece E. A release spring H is connected between the pressure pieces E and the housing D, and a return spring / is provided between the friction elements G and the housing D. When the device is relieved, there is little play between the friction elements G and the driver plate C. If a force in the direction of arrow x now acts against rod A, spring B is initially tensioned. As a result, the friction surfaces g2 of the friction elements G are pressed firmly against the friction surfaces d- of the housing D. As soon as the spring B reaches its greatest tension, the driver plate C lies against the friction elements G and pushes them, overcoming the frictional forces acting between the friction elements G and the housing D, until the friction elements come into contact with the stops ds of the housing D come. At the same time, the springs H and / are also compressed. If the force acting in the direction of the arrow χ stops, the spring B first relaxes by pushing the push rod A back, then the release spring H releases the pressure piece E from the pressure of the rollers F, so that at the same time the frictional pressure between the friction elements G and the housing D also ceases. The device is now returned to the initial position by the release spring H and the return spring /. The embodiment according to Fig. 3 and 4 shows the same design as Fig. Ι and 2, but in a double arrangement of the friction devices and to absorb impact and tensile forces. The driver plates O are firmly connected to the rods P and lie against one another when the device is relaxed. Both arrangements have common friction elements Q. The springs 5 ″ arranged between the driver plates O and the pressure pieces R are designed as disc springs. When there is pressure against one of the rods P, the friction elements are displaced in the pressure direction, with the spring 5 ″ facing away from the force application point. as well as the associated pressure piece R and the associated rollers T come into action. If a tensile force acts on one of the rods P, the friction elements are displaced in the direction of the force, with the spring ^, which is initially at the point of force application, as well as the associated pressure piece R and the associated rollers T come into action. Pressure forces on both sides against the rods P are transmitted directly from one driver plate O to the other. Tensile forces acting on both sides of the rods P are only cushioned by the disc springs Λ '. In the embodiment according to FIGS. 5 to 7, the release springs 1 are arranged between the pressure pieces 2 and the lugs 3 of the friction elements 4. Furthermore, there is only a single return spring 5, the spring plate 6 of which is supported both against lugs 7 of the friction elements 4 and against stops 8 of the vehicle frame 9, so that the return spring 5 comes into action in both directions of movement of the friction elements 4. In the embodiment according to FIGS. 8 to 10, the return spring 10 is arranged in the same way as in the embodiment according to FIGS. In contrast to this exemplary embodiment, however, it is mounted laterally next to the friction surfaces 11 of the friction elements 12. Furthermore, in this exemplary embodiment, the driver plates 13 are screwed to the collars 14 of the rods 15 by means of a thread. By unscrewing the collars 14 from the driver plates 13, it is possible to compensate for any wear and tear on the interacting parts, rollers 17, pressure pieces 16, friction surface 11 of friction element 12 and friction surface 19 of housing 18. The embodiment according to FIGS. 11 to 14 has an additional spring 21 between the driver plates 20, which cushions the compressive forces acting on both sides against the rods 22 and 22 '. Instead of the rollers of the previous exemplary embodiments, the expansion bodies 25 are arranged between the pressure pieces 23 and the friction elements 24 and are mounted in depressions 26 of the friction elements 24 and in depressions 27 of the pressure pieces 23. In order to compensate for the forces acting in the expansion bodies 25, the pressure pieces 23 are designed in two parts. The two halves lie against one another with their spherical surfaces 28. Pa τ ε κ τ α ν S ρ r ü c π ε:

1. Friction device for large shock absorption, in particular for railway vehicles, in which the friction elements are switched on between a return spring and a tensioning device under the action of a spring, characterized in that the tensioning device is special, by, a pressure piece (E or 22) against the Has friction elements (G or 24) pressed expansion bodies (T ⁷ or 25).

2. Friction device after

Proverb i, characterized in that the expansion bodies are designed as pendulum supports (25).

3. Friction device according to claim τ, characterized in that the friction elements (G) are in the way of the driver plate (C) for the spring (B) influencing the clamping device, so that they are directly from the driver plate after a certain stroke of the spring (B) (C) can be influenced.

4. Apparatus according to claim 1 and 2, characterized in that the driver plates (O) two friction devices of the same type with common friction elements (Q) lie opposite one another in the rest position.

S device according to claim 4, characterized in that between the Drive plates (20) an additional spring (21) is arranged.

6. Apparatus according to claim 5, characterized in that special approaches (7) on the friction elements (4) via intermediate rings (6) when moving in each direction against a single one Place the return spring (5) clamped between the stops (8) of the housing (9).

7. Apparatus according to claim 1, 2 and 4, characterized in that the Drive plates (13) are screwed by a thread with collars (14), against which are supported by the springs of the tensioning device.

For this purpose 2 sheets of drawings