Tooth and adaptor for dredging machine

Details Tooth and adaptor for dredging machine Tooth and adaptor for dredging machine

E - Fixed Constructions

02

F

E02F 9/28 (2006.01)

Patent

CA 2661786

The invention relates to a prong for a dredging machine, comprising a tip (11) and a nose (12) for coupling same to a fitting (20). The nose includes a lower base body (16) having a cross-section formed by at least four sides and an upper surface (120) which converges in the direction of the lower surface (123) towards the end of the nose (12) located farthest from the tip (11). The upper surface (120) is provided with an upper trapezoidal attachment (15), the upper (153) and lower (154) ends of which also converge in the direction of the end of the nose. The upper attachment (15) and the base body (16) have an equal maximum cross-section at a point from which the lower surface (123) and the upper end (153) converge in the direction of the tip. A flange having a constant or variable cross-section can be provided between the nose (12) and the tip (11). The prong is fixed to the blades of the dredger propeller using a fitting (20) having a cavity that matches the nose (12) of the prong and a pin (30) which extends through the corresponding vertical housings in the nose (12) of the prong and the fitting.

L'invention concerne une dent pour machine de dragage, présentant une pointe (11) et un bec (12) de couplage à un adaptateur (20). Le bec comprend un corps de base inférieur (16) présentant une section transversale formée d'au moins quatre côtés et dont la surface supérieure (120) converge vers la surface inférieure (123) jusqu'à l'extrémité du bec (12) la plus éloignée de la pointe (11) La surface supérieure (120) comprend un appendice supérieur trapézoïdal (15) dont les bases supérieure (153) et inférieure (154) convergent également vers l'extrémité du bec. L'appendice supérieur (15) et le corps (16) de base présentent une section transversale maximale coïncidant sur un point à partir duquel la surface inférieure (123) et la base supérieure (153) convergent en direction de la pointe. Un rebord présentant une section transversale constante ou variable peut être situé entre le bec (12) et la pointe (11). La dent est fixée aux aubes de l'hélice de la drague au moyen d'un adaptateur (20), présentant une cavité correspondant au bec (12) de la dent, et au moyen d'une broche (30) qui traverse les logements verticaux correspondants dans le bec (12) de la dent et l'adaptateur.

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