Tooth pin, excavation tooth component and excavating machine

Abstract

The invention discloses a tooth pin, an excavation tooth component and an excavating machine, wherein the excavation tooth component comprises a bucket tooth, a toothholder and a connecting component; the bucket tooth and the toothholder are connected through the connecting component; the connecting component comprises the tooth pin and a block pin; pin holes that can accommodate the tooth pin are formed on the bucket tooth and the toothholder; a clamping groove and a guide groove are formed on the tooth pin; the clamping groove extends in the circumferential direction of the tooth pin; the guide groove integrally extends in the axial direction of the tooth pin from the clamping groove to one end of the tooth pin; the block pin is arranged on the toothholder; and the block pin is matched with the clamping groove so as to limit the axial movement of the tooth pin. The clamping groove and the guide groove both extending in the circumferential direction of the tooth pin are formed on the tooth pin, the block pin is arranged on the toothholder, the clamping groove formed on the tooth pin and the block pin can enter matching positions conveniently due to the adoption of the guide groove, the clamping groove and the block pin are matched so as to achieve the firm connection of the bucket tooth and the toothholder, the wearing resistance of the tooth pin is improved, and the bucket tooth and the toothholder can be disassembled and mounted conveniently.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a toothed pin, an excavating tooth assembly using the toothed pin and an excavator with the excavating tooth assembly. Background technique [0002] At present, the front of the bucket of the excavator is provided with an excavating tooth assembly. Usually, the excavating tooth assembly includes bucket teeth, tooth holders and connecting parts. , connect and fix the bucket tooth and the tooth seat through the connecting piece. When parts of the excavating tooth assembly need to be replaced, the connecting piece can be removed first to separate the bucket tooth from the tooth seat, and then the damaged part can be replaced. The connecting piece is usually designed as a reusable component. [0003] Usually, the working environment of the excavator is harsh, and the excavating tooth assembly at the front end of the excavator bucket needs to bear huge and variable forces, these ...

AI Technical Summary

Problems solved by technology

However, most of the excavating tooth assemblies of existing excavators use a combination of rubber circlips and tooth pins, and the bucket teeth are fixed by means of the arc-shaped pin holes of the tooth holders. As a result, the rubber circlips are easy to wear...

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