DE184812C

DE184812C -

Info

Publication number: DE184812C
Application number: DENDAT184812D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

.— M 184812 KLASSE 20/. GRUPPE.— M 184812 CLASS 20 /. GROUP

Die Erfindung bezieht sich auf eine Bremse, insbesondere für Eisenbahnfahrzeuge, deren Bremskraft entsprechend dem Ladegewicht des Fahrzeuges durch Veränderung der Bremshebellängen geregelt wird. Gemäß der Erfindung geschieht die Veränderung der Hebellängen durch Verschiebung von Keilstücken, die, unter dem Einfluß von an den Drehschemel greifenden Winkelhebeln stehend, alsThe invention relates to a brake, in particular for railway vehicles, whose Braking force according to the vehicle's load weight by changing the length of the brake lever is regulated. According to the invention, the lever lengths are changed by moving wedge pieces, standing under the influence of angle levers acting on the turntable, as

ίο Drehpunkte für die die Bremsklötze tragenden Doppelhebel dienen. Durch keilförmige Ausbildung der Doppelhebel auf diejenige Länge hin, innerhalb welcher die Keilstücke zur Anlage kommen können, wird gleichzeitig ein schnelleres Anlegen der Bremse erreicht. ίο Pivot points for those carrying the brake pads Double levers serve. By wedge-shaped design of the double lever on that The length within which the wedge pieces can come to rest is at the same time a faster application of the brake achieved.

Fig. ι zeigt die Bremse, beispielsweise an einem Drehgestell angebracht, in Seitenansicht, Fig. 2 im Grundriß und Fig. 3 in Vorderansicht. Fig. 4 zeigt einen Schnitt nach der Linie A - B der Fig. 2, Fig. 5 einen Schnitt nach Linie C-D der Fig. 2. - Fig. 6 stellt einen Bremsklotz mit Doppelhebel und Keilstück in größerem Maßstabe dar.Fig. Ι shows the brake, for example attached to a bogie, in side view, Fig. 2 in plan and Fig. 3 in front view. Fig. 4 shows a section along line A - B of Fig. 2, Fig. 5 shows a section along line CD of Fig. 2. - Fig. 6 shows a brake pad with double lever and wedge on a larger scale.

Die Bremsklötze 12 sind in bekannter Art an den Böcken 13 mittels der Gehänge 14 aufgehängt (Fig. 6). Die Böcke 13 sind auf den Querträgern 9 des Drehgestells gelagert, während die Bremsklötze die symmetrisch liegenden Bremshebel 11 umgreifen, die durch je eine Gelenklasche 15 (Fig. 2) miteinander verbunden sind.The brake pads 12 are attached to the brackets 13 by means of the hangers 14 in a known manner suspended (Fig. 6). The blocks 13 are mounted on the cross members 9 of the bogie, while the brake pads grip the symmetrically lying brake lever 11, which by a joint plate 15 (Fig. 2) are connected to one another.

Die Verbindung der Bremshebel 11 mit der Bremsanstellvorrichtung Jst in folgender Weise hergestellt:The connection of the brake lever 11 with the Brake adjusting device Jst manufactured in the following way:

An die eine der Gelenklaschen 15 greift die an die Anstellvorrichtung der Bremse angeschlossene Zugstange 21 (Fig. 2). Auf dem Längsfortsatz 16 des Querträgers 9 ist der Zapfen 17 befestigt, der den Drehpunkt für den zweiarmigen Balanzier 18 bildet. Die Zugstange 21 ist durch den Zapfen 17 hindurchgeführt. An den einen Arm des Balanziers 18 greift die Druckstange 20, die mit ihrem anderen Ende an der Zugstange 21 befestigt ist, an den anderen Balanzierarm die Druckstange 19, die mit der zweiten Gelenklasche 15 gelenkig verbunden ist. Beim Ziehen an der Zugstange 21 zwecks Anstellens der Bremse wird das eine Bremsklotzpaar unter Vermittlung der Verbindungslasche 15 und der Hebel 11 direkt angelegt und dabei die Druckstange 20 mitgenommen, die den Balanzier derart dreht, daß die Druckstange 19 auf die zweite Gelenklasche 15 wirkt und das zweite Bremsklotzpaar anlegt. Die Hebel 11 sind zweiarmige Hebel, deren Drehpunkt durch die als Schneiden wirkenden Keilstücke 36 gebildet wird (Fig. .2 und 6).One of the hinge plates 15 engages the pull rod 21 connected to the adjusting device of the brake (FIG. 2). on the longitudinal extension 16 of the cross member 9 is the pin 17 is attached, which forms the pivot point for the two-armed balancer 18. the Pull rod 21 is passed through pin 17. On one arm of the balancer 18, the push rod 20 engages with its other end is attached to the tie rod 21, to the other balancing arm the push rod 19, which is articulated to the second joint bracket 15. When pulling on the pull rod 21 for the purpose of adjusting the brake is the one pair of brake pads Mediation of the connecting tab 15 and the lever 11 applied directly and thereby the Push rod 20 carried along, which rotates the balancer in such a way that the push rod 19 acts on the second joint plate 15 and applies the second pair of brake pads. The levers 11 are two-armed levers, the pivot point of which is through the wedge pieces that act as cutting edges 36 is formed (Fig. 2 and 6).

Mit Hilfe der Keilstücke 36 können die Arme der Hebel 11 entsprechend der Last des Fahrzeuges und damit der Bremsdruck verändert werden. Zu diesem Zwecke sind die Keilstücke 36 in den Taschen 35 (Fig. 6) verschiebbar.With the help of the wedge pieces 36, the arms of the lever 11 can according to the load of the vehicle and thus the brake pressure can be changed. For this purpose, the wedge pieces 36 are in the pockets 35 (Fig. 6) movable.

Die Verschiebung geschieht mittels der gekröpften Stangen 30, auf deren Enden 31 die Keilstücke zweckmäßig einstellbar sind. Je nach der Einstellung der Keilstücke mittels des Stiftes 37 und der in der Stange vorge-The shift is done by means of the cranked rods 30, on whose ends 31 the Wedge pieces are expediently adjustable. Depending on the setting of the wedge pieces by means of of the pin 37 and the one provided in the rod

Claims

See holes 32, the braking force can be regulated according to the degree of wear of the brake pads. The wedge-shaped levers 11 and. the wedge pieces 36: can be used without modification for different car sizes. The push rods 27 (FIG. 4), which are connected to the angle levers 23, engage the cranked rods 30 by means of the crossheads 28. The angle levers are mounted on the bracket 24, which is fastened to the cross member 9. The second arms of the bell crank engage the bolt 22 carried by the pin 38. The latter is attached to the turntable 7. If the turntable 7 sinks according to the load on the vehicle, the lower arms of the angle lever 23 are rotated outward by means of the pin 38 and the linkage 27 to 31 and thus also the wedge pieces 36 are moved towards the wheels, so that the to the. Lugs 15 (Fig. 2) gripping arms of the lever 11 are extended. When the brake is applied, the brake pressure is therefore increased in accordance with the length of these lever arms. The push rods 27 can consist of two telescoping parts 27, 25, between which a resilient member, for. B. the coil spring 26 is turned on. On the one hand, this device has the purpose of avoiding damage to the angle levers 23 or the transmission linkage 27, 28, 30, 31, 36, which could occur if the vehicle is heavily loaded with the brake engaged and locked; on the other hand, the loosening of the wedge pieces is facilitated by the interposed springs. The levers 11 are wedge-shaped to the length within which the wedge pieces 36 can come to rest, so that when the wedge pieces are pushed out, the brake pads are brought closer to the wheels and the distance that the brake pads have to cover when the brake pads are positioned is reduced ; In order to limit the possibility of displacement of the wedge pieces 36 and thus not let the braking effect grow beyond a certain level, the stops 34 are provided on the cross member 9, against which the cranks 30 rest in the outermost position of the wedge pieces. Even after the cranks bump against these abutments, however, the drive device of the wedge pieces is not hindered in their on position according to the load, since with further deflection of the angle lever 23 as a result of the increase in load, the rods 27 enter the sleeves 25 with compression of the springs 26. Patent-A ν proverbs:

1. Brake, especially for railway vehicles, when used to regulate the Braking force according to the loading weight of the vehicle, the brake lever lengths variable are, characterized by wedge pieces (36), which are influenced by a linkage (23, 27, 28, 30, 31) and as a support and pivot point for the two-armed Brake lever (11) are used.

2. Brake according to claim 1, characterized in that the brake lever (11) towards the length within which the wedge pieces (36) come to rest can be designed wedge-shaped by shortening the path of the brake pads to apply the brakes faster.

3. Brake according to claim i, characterized in that in the linkage (27 to 31) a resilient organ (spring 26 or the like.) Is connected, the releasing the wedge pieces (36) supported and overstressing of the linkage (22 to 31) prevented.

4. Brake according to claim i, characterized in that the wedge pieces (36) adjustable on the ends (31) of the connecting rods (27 to 31) are.

5. Brake according to claim 1, characterized in that on the bogie cross member (9) stops (34) limiting the braking force are arranged against which crankings of the linkage (29, 30, 31) can lay.

1 sheet of drawings.