High-abrasion-resistance excavator bucket tooth with external chilling reinforcing ribs

Abstract

The invention provides a high-abrasion-resistance excavator bucket tooth with external chilling reinforcing ribs. The excavator bucket tooth comprises a bucket tooth body and the external chilling reinforcing ribs arranged on the front side and the rear side of the bucket tooth body. The bucket tooth body comprises an installing region, a working region and a tooth point. The chilling reinforcing ribs are multiple cylindrical structures distributed in longitudinal columns and parallel to the length direction of the bucket tooth, a cutting bevel is arranged at the position, close to the tooth point, of each chilling reinforcing rib, the chilling reinforcing ribs are solidified preferentially in the casting and solidifying process of the bucket tooth and form a chilling effect on the bucket tooth body on the inner side to promote grain refinement of the bucket tooth, and the tissue is more uniform, so that the bucket tooth has higher rigidity and better shock resistance in the excavating process and is effectively prevented from being damaged by a hard object, and the passing performance of excavating and the abrasion resistance of the bucket tooth are improved. The bucket tooth is simple in structure, capable of improving excavating efficiency and reducing energy consumption of a machine and wide in application range, and the service life of the bucket tooth is prolonged.

Description

technical field [0001] The invention relates to an excavator accessory, in particular to a highly wear-resistant excavator bucket tooth with external chilled reinforcing ribs. Background technique [0002] Excavator bucket teeth are an important part of the excavator, and the combined bucket teeth composed of tooth seats and tooth tips are easy-to-wear parts. Stress Analysis The working surface of the bucket tooth is in contact with the excavated object, and the stress conditions are different in different working stages during a complete excavation process. When the tip of the bucket first touches the surface of the material, due to the faster speed, the tip of the bucket receives a stronger impact. If the yield strength of the bucket tooth is low, plastic deformation will occur at the tip. As the excavation depth increases, the stress on the bucket tooth will change. When the bucket teeth cut the material, the bucket teeth and the material move relative to each other, an...

AI Technical Summary

Problems solved by technology

If the material is hard rock, concrete, etc., the friction force is very high. Repeated action of this process will produce different degrees of surface wear on the working surface of the bucket teeth, and then produce deep furrows, which will affect the service life of the bucket teeth.

[0003] Bucket teeth have a short service life and frequent replacement, which not only affects work efficiency, but also wastes a lot of raw materials. Ordinary bucket teeth have low strength, poor wear resistance, and are easy to break. The production cost is high and the process is poor. The service life and excavation low ability

In order to improve work efficiency, new bucket teeth can only be replaced frequently, which greatly increases the cost of use

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