Schaeffler Technologies Ag & Co .kg

Bsh Hausgerate Gmbh

Rudolf Henrichsmeyer Formaplan Gmbh & Co. Kg

Andreas Kirschner

Wolfgang Fugel

Martin Gegner

Alexander Reimchen

Albert Ostermaier

Frank Schoenstein

Samo Lemez

Bostjan Ogrizek

Matjaz Golicnik

Ales Mesko

Johanna Wiedemann

Thomas Reichel

Franz Koch

Ales Semprimoznik

Iztok Drobez

A planetary gearbox includes a planet carrier having stop faces, planet journals, planet bearings, planet gears and thrust washers. Each of the planetary gears is arranged on one of the planet journals by one of the planet bearings. Each thrust washer is arranged between the planet carrier and one of the planetary gears. Each thrust washer includes a first washer side and a second washer side facing away from the first washer side, a lower circumferential circular segment, and a wing formation arranged to rest on one of the stop faces. Each washer side includes recessed portions and raised portions, each arranged adjacent to one of the recessed portions. The recessed portions are arranged to supply a lubricant to one of the planet bearings. The wing formation extends from the lower circumferential circular segment outwardly in a tangential direction.

Planetary gearbox having a rotationally fixed thrust washer of the planet bearing

An axial bearing arrangement formed substantially of two rotating carrier components () with circular ring-shaped end faces () and an axial anti-friction bearing () arranged between the carrier components (). This axial anti-friction bearing () has a first ring-shaped angle disk (), which rests on the end face () of the first carrier component () and which is made from a thin steel sheet, and a second ring shaped angle disk (), which rests on the end face () of the second carrier component () and a needle cage (), which rolls between the axial inner sides () of the angle disks () and which is formed from a plurality of bearing needles () arranged adjacent to one another and held at equal distances to one another by a bearing cage (), and is lubricated and cooled by a lubricant flow () emitted by a shaft which passes centrally through the axial anti-friction bearing (). According to the invention, a circular ring-shaped ramp disk (), which is designed as a spring, is arranged between the first carrier component () and the first angle disk (), by which ramp disk a radial annual gap () between the first carrier component () and the first angle disk (), which results from the axial clearance of the axial anti-friction bearing () in the no-load state, can be sealed to prevent a wrong direction of the lubricant flow () and the lubricant flow () at the same time, can be systematically routed into the inside of the bearing () between the angle disks ().

Axial bearing arrangement

an axial cage () for cylindrical rolling bodies which substantially is formed of a thin-walled washer () with a W-shaped profile, the individual profile legs of which are formed by an inner radial rim () formed on the inner edge of the washer (), an outer radial rim () formed on the outer edge of the washer () and a U-shaped center crimp () connected by way of inner and outer axial profile sections () to the radial rims () and having the same radial extent as the rims (). A number of evenly spaced rectangular cage pockets () are cut from the central crimp () and the adjacent axial profile sections (), between which pockets an equal number of pocket webs () are formed connecting the rims () with one another, by which webs the cylindrical rolling bodies () are retained in the cage pockets () at uniform distances from one another and are also guided in the circumferential direction. According to the invention, this axial cage () is characterized in that the outer radial rim () is formed with an inclination (&#x3b1;) facing away from the central U-shaped crimp () and the cage pockets () have an axial length greater than the smallest axial distance between the inner sides () of the inner and the outer radial rim () such that the cage pockets () extend at least into the outer radial rim () of the axial cage () and, because of a crowned formation of the outer face sides () towards the center of the pocket on the outer radial rim () of the axial cage () at the height of the roll axes of the rolling bodies (), form a rounded thrust lug () for the outer end faces () of the rolling body ().

Axial cage for cylindrical rolling bodies

An axial cage for cylindrical rolling elements includes an annular disc, the disc having a W-shaped profile cross-section and including a radially inner rim, a radially outer rim, and a U-shaped bead connected via straight profile sections to the rims. Rectangular cage pockets are worked out of the bead and the adjoining straight sections, between which are pocket webs that connect the rims to one another and hold cylindrical rolling elements in the cage pockets. The outer rim has a crown cap-like overall shape such that it includes, in the region of each cage pocket, a constriction that extends axially into the cage pocket and is in supporting contact with an end face of the rolling elements, and, in the region of each pocket web, a section corresponding to the outer diameter of the axial cage.

Axial cage for cylindrical rolling elements

An axial bearing assembly which essentially is formed of two axial rolling bearings () between which a circular ring-shaped carrier component () is arranged. Each of the axial rolling bearings () has a first ring-shaped bearing disk () seated against one of the axial sides () of the carrier component () and a second ring-shaped bearing disk () for fastening to additional components of the surrounding construction which are arranged axially on both sides of the carrier component () and which each consist of a thin steel plate. A plurality of rolling elements () arranged next to each other additionally roll between the axial inner sides (and) of the bearing discs () and are held at a uniform spacing from each other by a respective bearing cage () and together therewith form a needle roller and cage assembly (). Additional recesses () are arranged on the inside diameter () of the circular ring-shaped carrier component (), and at the same time the first bearing discs () of both axial rolling bearings () are interconnected via a centering collar () guided through the inside diameter () of the carrier component () on the one first bearing disk (), and via outward moldings () on the centering collar () of the one first bearing disk () which are complementary to the recesses () on the carrier component (), and via inward moldings () on the inside diameter side () of the other first bearing disk () which are complementary to the outward moldings () on the centering collar (), in a manner that prevents faulty assembly, and are secured to the carrier component () in a captive and rotationally fixed manner.

Axial bearing assembly

Growing community of inventors

Aurachtal, Germany

Andreas Kirschner