Plain bearing and wind energy unit with said bearing

Details Plain bearing and wind energy unit with said bearing Plain bearing and wind energy unit with said bearing

F - Mech Eng,Light,Heat,Weapons

03

D

F03D 11/00 (2006.01) F03D 7/02 (2006.01)

Patent

CA 2395540

In a plain bearing for the transmission of high axial forces and great flexural moments with slight relative movements the one co-operating bearing component has an annular rib which engages into an annular groove provided on the other co-operating bearing component. The annular rib which can be of an outwardly convergent trapezoidal cross-section is provided with anti-friction linings on its free side faces and possibly peripheral faces. The anti-friction linings, like the co-operating bearing component in question, in particular an outer ring carrying the annular rib, can be subdivided segment-like. The segments can then be released individually from their composite assembly and maintained, in particular provided with new anti-friction linings. A preferred use of this plain bearing is the arrangement thereof between a pylon-supported machine head and the pylon head of a wind power installation.

L'invention concerne un palier à glissement pour transférer des forces axiales et des couples de flexion élevés lors de faibles mouvements relatifs. Un des éléments de ce palier présente une nervure annulaire qui vient en contact avec une rainure annulaire ménagée dans l'autre élément dudit palier. Cette nervure annulaire, qui peut présenter une section trapézoïdale convergente vers l'extérieur, est pourvue de garnitures de glissement sur ses faces latérales libres et éventuellement sur ses surfaces périphériques. Ces garnitures de glissement ainsi que l'élément de palier concerné, notamment une bague extérieure comportant la nervure annulaire, peuvent être divisés en segments. Ces segments peuvent être séparés de l'ensemble et entretenus individuellement, par exemple pour être pourvus de nouvelles garnitures de glissement. Ce palier à glissement s'utilise de préférence entre une nacelle supportée par une tour et le sommet de la tour d'une éolienne.

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