DE314689C

DE314689C -

Info

Publication number: DE314689C
Application number: DENDAT314689D
Authority: DE
Publication date: 1900-01-01

Description

Die Erfindung betrifft ein Trag- und Stützrollenlager mit gegeneinander verschwenkbaren Laufringen.The invention relates to a support and support roller bearing with mutually pivotable Races.

Die Erfindung besteht im wesentlichen darin, daß die mit einer geraden Erzeugenden hergestellten und zwischen erhaben gebogenen Laufbahnen angebrachten Rollen in zwei Reihen schräg gegeneinander angeordnet sind und gleichzeitig die innere Laufbahn in bekannter Weise um einen in der Achse des Lagers zwischen den Rollenreihen gelegenen Mittelpunkt gekrümmt ist. Dabei ist das Lager zweckmäßig so angeordnet, daß eine gerade Linie, die den Mittelpunkt der , genannten inneren kugeligen Laufbahn mit dem Mittelpunkt irgendeiner der auf dem äußeren Lagerring vorgesehenen, bogenförmigen Laufbahnen für die Rollen verbindet, durch die Berührungspunkte zwischen dieser Rolle und den Laufbahnen und zweckmäßig auch durch die Mitte der fraglichen Rolle geht. Durch diese Vereinigung verschiedener, an sich bekannter Maßnahmen werden wesentliche Vorteile erreicht. Einerseits wird das Lager in sich selbst zusammengehalten, anderseits kann das Lager einem Achsschub in der einen oder anderen Richtung ausgesetzt werden, ohne daß die Rollen einer drehenden Wirkung-apsgesetzt werden, die eine Drehung der Achsen der Rollen im Verhältnis zur Lagerachse herbeiführen könnte, welcher Ubelstand bei den bis jetzt vorgeschlagenen Rollenlagern mit gegeneinander verschwenkbaren Laufringen vorhanden ist.The invention consists essentially in the fact that those produced with a straight generating line and rollers attached between raised curved raceways are arranged in two rows at an angle to one another and at the same time the inner raceway in a known manner around one in the axis of the bearing between the center of the roller rows is curved. The camp is useful here arranged so that a straight line that forms the center of the, called inner spherical Raceway with the center of any of the arcuate ones provided on the outer bearing ring Tracks for the roles connects, through the points of contact between this role and the tracks and expedient also goes through the middle of the role in question. Through this union of different, in itself known measures, significant advantages are achieved. On the one hand, the camp becomes in itself itself held together, on the other hand, the bearing may have an axial thrust in one way or another Direction without the rollers being subjected to any turning effect which cause a rotation of the axes of the rollers in relation to the bearing axis could what Ubelstand in the previously proposed roller bearings with each other pivotable races is present.

Die· Zeichnung veranschaulicht zwei Ausführungsformen der Erfindung, und zwar zeigtThe drawing illustrates two embodiments of the invention, namely shows

Fig. ι teilweise in Seitenansicht und teilweise im Schnitt eine erste Ausführungsform und Fig. 2 deren Endansicht,Fig. Ι partially in side view and partially in section a first embodiment and Fig. 2 its end view,

Fig. 3 stellt im Schnitt eine zweite Ausführungsform undFig. 3 shows in section a second embodiment and

Fig. 4 deren Endansicht dar.Fig. 4 shows its end view.

In Fig. ι und 2 bezeichnen 1 und 2 zwei Reihen von Rollen, die zueinander versetzt zwischen einem inneren Laufring 3 und einem äußeren Laufring 4 untergebracht sind.In Fig. 1 and 2, 1 and 2 denote two Rows of rollers that are offset from one another between an inner race 3 and a outer race 4 are housed.

Der innere Laufring 3 ist mit einer kugeligen Laufbahn 5 für die Rollen versehen, wobei, diese Laufbahn eine kugelige Fläche bildet, deren Mittelpunkt 6 in der zwischen den Rollen gelegenen Mittelebene liegt, so daß ,die beiden Rollenreihen gleich große Druckwinkel aufweisen. Der äußere Laufring 4 ist:;: mit zwei Laufbaimen 8, 9, je für eine Rollenreihe, versehen. Diese Bahnen sind durch einen mittleren ■Vorsprung oder Flansch 7 getrennt. Die RollenThe inner race 3 is provided with a spherical raceway 5 for the rollers, wherein, this raceway forms a spherical surface, the center 6 of which is between the rollers located central plane, so that the two rows of rollers have the same pressure angle. The outer race 4 is:;: with two Laufbaimen 8, 9, each for a row of rollers, provided. These tracks are separated by a central projection or flange 7. The roles

Claims

are cylindrical, so that due to the raised shape of the runways point contact or approximately There is point contact between ■ the rollers and the runways. the outer runways 8, 9 are curved in section in such a way that a straight line 10 from the center 6 of the camp to the center 11 of the arc 8 or 9 through the two Points of contact between a role and the corresponding taxiways.

The rollers are spaced apart from one another by means of a cage 12

■ held, which is common to the two rows of rollers and designed in the form of a ring and is provided with recesses that receive the rollers so that they are light and with less Friction can roll between them and the cage .. The cage makes that easy too Maintaining the rollers in the correct angular position in relation to the axis of rotation, such as shown in the drawing.

In the embodiment shown in FIGS. 3 and 4, the outer runways are on the outer edges are provided with flanges 13, each row of rollers having its particular cage 12 possesses, which is designed approximately as the cage shown in Figs. 1 and 2 and similar to this works. The roles of the two rows are not offset from one another here.

In the case of the bearing shown in FIGS. 3 and 4, the projection 7 serves as a guide for the inner edges of the roles. It is evident that due to the spherical shape of the inner runway, the in the bearings according to FIGS. 1 to 4, the two rows of rollers have in common that the bearing is self-adjusting is and · also works just as well if the center planes of the raceways form an angle with each other.

The rollers can take a larger load than balls of the same diameter and work moreover with low friction, because mainly only point contact between them and the taxiways takes place.

Pa τε ντ - A ν s ρ r υ cη:

Support and support roller bearings with races that can be pivoted against one another and two Series of rollers, characterized in that the rollers have a straight generating line manufactured and mounted between raised 'curved raceways, of which the inner one located in the axis of the bearing between the rows of rollers Center is curved.

1 sheet of drawings.