Dipper teeth assembly of excavator

Abstract

The invention discloses a dipper teeth assembly of an excavator, comprising dipper teeth and a tooth holder, wherein the tooth holder comprises a head embossment and a scraper pan connecting seat, the dipper teeth comprise a tail cavity containing the head embossment of the tooth holder, the head embossment of the tooth holder is inserted into the tail cavity of the dipper teeth to form a combined structure, wherein the head embossment of the tooth holder comprises a front end and a rear end, the front end is a prismatic structure, the prismatic structure comprises an upper end face and a lower end face; the rear end is a wedged structure, the wedged structure comprises an expanding end and a contract end, the expanding end is connected with the scraper pan connecting seat, the shape of the contract end is the same with the shape of the lower end face of the prismatic structure at the front end of the head embossment, and the contract end and the lower end face are tightly fitted and connected into a whole; and the inner surface of the tail cavity of the dipper teeth is matched with the head embossment of the tooth holder, thus the head embossment of the tooth holder is inserted into the tail cavity of the dipper teeth to form a stable structure. The invention has the beneficial effects that twisting of the dipper teeth is blocked and the problem of fracture failure caused because a teeth pin is stressed and the matched part of the tooth holder and the dipper teeth is stressed is solved.

Description

technical field [0001] The invention relates to an excavator component, in particular to an excavator bucket tooth assembly. Background technique [0002] The bucket of the excavator is the main executive device for excavation or loading operations, and it plays the role of cutting and loading materials. Due to the harsh working environment, the bucket needs to bear huge wear and tear. If no protection measures are taken, it will be blunted or even damaged quickly. The common way is to install bucket teeth on the working side of the bucket. By installing bucket teeth, the working end of the bucket can be protected from premature and fast wear, and the sharpness of the front end of the bucket can be increased, so as to enhance the cutting and loading capabilities of the bucket, and by replacing a part of the worn out excavation tooth assembly, Keeps the bucket working end sharp and efficient while reducing operating costs. [0003] The known excavator bucket tooth set is ge...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned problems existing in the bucket tooth assembly of the existing excavator, the present invention provides a bucket tooth assembly, which aims to eliminate the failure of the tooth pin and the force of the matching part of the bucket tooth and the tooth seat to cause its breakage and other problems.

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