Mounting of wear members

E - Fixed Constructions – 02 – F

Patent

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Details

E02F 9/28 (2006.01)

Patent

CA 2719712

A retaining pin assembly for an excavator tooth assembly. The retaining pin assembly has opposable locating mem-bers each having a shank portion able to be slidably insertable via a respective retaining pin aperture on opposite sides of a wear member into a transversely extending mounting aperture of a mounting nose of an excavator. Each locating member also has an en-larged inwardly convergent tapered wedge portion adjacent a normally outer end. The retaining pin assembly also has a tensionable retaining member extending between the locating members from one side of the retaining pin assembly. When tension is applied to the retaining member relative contraction of the locating members occurs to urge the wear member into engagement with the mounting nose by wedging engagement between each of the wedge portions and a rear wall of respective retaining pin apertures.

L'invention concerne un ensemble goupille de retenue destiné à un ensemble dent d'excavateur. Cet ensemble comprend des éléments de positionnement opposables possédant chacun une partie de tige pouvant être insérée de manière coulissante par l'intermédiaire d'une ouverture de goupille de retenue respective sur les côtés opposés d'un élément d'usure dans une ouverture de montage s'étendant transversalement à partir d'un embout de fixation d'un excavateur. Chaque élément de positionnement comprend également une partie de bord tronconique qui converge vers l'intérieur, adjacente à une extrémité normalement à l'extérieur. L'ensemble goupille de retenue comprend également un élément de retenue pouvant être tendu s'étendant entre les éléments de positionnement d'un côté de l'ensemble goupille de retenue. Lorsque la tension est appliquée à l'élément de retenue une contraction correspondante des éléments de positionnement a lieu pour contraindre l'élément d'usure à se coupler à l'embout de fixation par calage entre chacune des parties de bord et une paroi arrière des ouvertures de goupille de retenue respectives.

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