Prong and fitting for a dredging machine

Abstract

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.

Description

technical field [0001] The present invention relates to excavator teeth and adapters, in particular to teeth or wear elements connected to adapters or adapter elements forming an assembly. The purpose of this component is to deepen and clean the bottom of harbors, rivers, or channels, etc., to remove silt, stones, or sand, etc. therefrom. The adapter is connected to the blade of the propeller, thereby forming the cutter head of the excavator. [0002] An excavator or dredger allows the excavation, transport and storage of submerged material, it can be a mechanical or hydraulic device, in the case of applications on solid terrain the mechanical device utilizes cutting members, teeth or blades. [0003] The teeth and adapters of the present invention are preferably used in excavators of the type with suction heads, while excavating the submerged zone, loose material is sucked by pumps and transported to other locations by pipelines. Background technique [0004] Tooth and ad...

AI Technical Summary

Problems solved by technology

Said pins are usually removed by tapping them on the upper part and through the lower part of the tine-adapter assembly, but this often results in the pins falling into the water (since the tines are replaced on water) and thus cannot be retrieved

Similarly, because of the presence of material adhering to the lower part of the tooth-adapter assembly, it is difficult to remove the above-mentioned pins, as the material blocks the pins from exiting their receiving cavities

Also, pins are often lost when they are inserted into the body of the substance attached to the assembly and subsequently dropped into the water

[0012] -Because of the construction of the interlock setting in the prior art, the teeth are too large, resulting in a longer interlock, resulting in lower strength of the teeth, larger space occupation, longer distance from the cutter head to the blade, and eventually deterioration of the teeth and components performance

[0013] -Similarly, the adapter has no additional protection other than that provided by the teeth alone, and due to the action of the teeth produces loose matter, the adapter is affected by this loose matter, which strikes the adapter, causing its damage and wear and tear

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