Excavating tooth component, tooth holder and bucket teeth

Abstract

The invention discloses an excavating teeth component, a tooth holder and bucket teeth. The excavating tooth component comprises the tooth holder, the bucket teeth, and a locking piece. The rear part of the bucket teeth is provided with a cavity and the front end of the tooth holder is provided with a tooth holder head. The cavity of the bucket teeth and the tooth holder head are firmly combined together through the locking piece. The upper part of the tooth holder head is provided with a first transition connecting surface, a first matching surface and a third matching surface, and the lower part of the tooth holder head is provided with a second transition connecting surface, a second matching surface and a fourth matching surface. The first matching surface and the third matching surface are connected through the first transition connecting surface, and the second matching surface and the fourth matching surface are connected through the second transition connecting surface. The first matching surface and the second matching surface form a predetermined angle with a central axis of the tooth holder head respectively, and the third matching surface and the fourth matching surface are parallel to the central axis of the tooth holder head respectively. An inner surface of the cavity of the bucket teeth is provided with a plurality of matching surfaces which are contacted with the matching surfaces.

Description

technical field [0001] The invention relates to a excavating component in engineering machinery or mining machinery, in particular to a fixed connection structure between bucket teeth and tooth seats. Background technique [0002] Excavators, loaders, and mining machines in the field of construction machinery and mining machinery perform excavation or loading operations through buckets, and buckets play the role of cutting and loading materials. The bucket is subject to huge wear and tear, if no protective measures are added to its front end, it will be blunt or even damaged soon, and it is required to work efficiently for a long time, so in most cases it will be on the side of the bucket. The purpose of installing an excavating tooth assembly or a wear-resistant plate is: first, to protect the working end of the bucket from being worn prematurely and too quickly; second, to increase the sharpness of the front end of the bucket and enhance the cutting and loading capabilitie...

AI Technical Summary

Problems solved by technology

The first disadvantage is that once the spring leaf fatigues and fails during the excavation process, the bucket teeth will be lost. The second is that in order to ensure sufficient friction, the size interference between the spring leaf and the tooth seat hole is large, and the disassembly process needs to be knocked vigorously. click, inconvenient to install

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