Split bucket tooth for buckets of excavators and manufacturing method thereof

Abstract

The invention discloses a split bucket tooth for buckets of excavators and a manufacturing method thereof. The split bucket tooth for buckets of excavators is manufactured by three steps: manufacturing of tooth roots, manufacturing of tooth tops and assembling. The split bucket tooth for buckets of excavators is divided into a tooth root and a tooth top, wherein the tooth root and the tooth top are separately forged from different materials; the tooth top adopts materials, the wear resistance of which is superior to that of the materials of the tooth root; the tooth root is made from common materials such as 40Cr and 42CrMo through a common heat treatment method; the tooth top is made from wear-resistant materials such as 20CrMnTi, 38CrMoLA and GCr15 through a wear-resistant heat treatment method; the tooth root manufactured through the manufacturing method can be repeatedly used, so that the process requirement is reduced, the cost is greatly reduced and both the inner quality and surface quality can be ensured; the tooth top is light in weight (about 1 / 3 of the total weight) and the tooth top selects the wear-resistant materials and a heat treatment process capable of enhancing the wear resistance, so that the wear resistance of the tooth top is greatly improved.

Description

Technical field: [0001] The invention relates to the field of mechanical equipment manufacturing, in particular to a split bucket tooth for an excavator bucket and a manufacturing method thereof. Background technique: [0002] Excavator is an important construction machinery with a wide range of applications. In order to facilitate excavation, the buckets of traditional excavators are equipped with protruding excavation teeth (referred to as bucket teeth). During use, the bucket teeth will wear out quickly, which will affect the smooth progress of excavation. However, after the bucket teeth are worn out, they cannot be repaired, they can only be replaced, and the cost is very high. At present, all the bucket teeth on the market are integral, and the damage is mainly at the tip of the teeth. 2. When the tooth tip 2 is scrapped, it can be considered to reinstall a tooth tip 2 to continue all, so that the cost can be reduced by more than half. Furthermore, if forging is used t...

AI Technical Summary

Problems solved by technology

[0004] At present, in the patent CN102619253B disclosed in the Chinese patent literature, an excavator bucket tooth is disclosed; it includes a tooth holder with a mounting part and a bucket tooth with a pin hole and a cavity. Connected by pins, the mounting part of the tooth seat is provided with a vertically arranged strip-shaped installation groove and an installation opening is opened in the horizontal direction on the installation groove. There is an elastic part fixed in the room, and the elastic part is fixed with a clip and a part of the clip protrudes outwards and is snapped into the installation port; the patent mentions that the bucket teeth of the excavator are easy to break and are not easy to replace. problem, but only mentioned the connection method of the tooth seat and bucket teeth, and did not describe the material and process of the tooth seat and bucket teeth

[0005] At present, in the patent CN102900112A disclosed in the Chinese patent literature, a bucket of an excavator is disclosed; the patent mentions that the excavating teeth are fixedly connected with the bucket through bolts; Remove and replace without connecting the bucket. The end of the bucket is provided with a mounting hole, the tail end of the excavating tooth extends into the mounting hole, and the bolt passes through the wall of the mounting hole and the Excavating teeth, so that the excavating teeth are fixedly connected with the bucket, and the surface of the head end of the excavating teeth is provided with a hard alloy layer by welding; this patent also mentions the problem that the excavator bucket teeth are easy to break and difficult to replace, but it also provides When it comes to the connection and installation method of the tooth seat and the bucket teeth, the surface of the head end of the excavation tooth is provided with a hard alloy layer by welding, which can only prolong the service life for a short time. The material and wear resistance of the inner core of the head end of the excavation tooth are not It has not been changed, and there is no corresponding description of the material and process of the tooth seat and bucket tooth

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