The Problem of Bucket Teeth Failure of Excavator

The bucket tooth of an excavator is an important part of the excavator, and it is also a very damaged part. How much do you know about the failure of the excavator bucket teeth?

As a professional excavator bucket teeth supplier, Yongfeng will introduce it to you.

Reasons for the Failure of Bucket Teeth of Excavators

1. As the digging depth increases, the force of the bucket teeth will change. When the bucket tooth cuts the material, the bucket tooth and the material move relative to each other, and a large positive squeezing force is generated on the surface, thereby generating a relatively large frictional force between the working surface of the bucket tooth and the material.

2. Force analysis The bucket tooth working surface is in contact with the excavated material, and the force is different at different working stages in a complete excavation process.

3. When the tip of the tooth first contacts the surface of the material, the tip of the bucket receives a strong impact due to the faster speed. If the yield strength of the tooth is low, plastic deformation will occur at the tip.

4. If the material is hard rock, concrete, etc., the friction will be great. As a result of the repeated action of this process, different degrees of surface wear are produced on the bucket tooth working surface, which in turn produces deep furrows.

Failure Form of Bucket Teeth of Excavator

The bucket teeth of the excavator undergoing different degrees of wear and impact under different working conditions will cause different degrees and different forms of failure. For example, there are obvious furrow-like scratches on the front working surface of the bucket teeth of the excavator, and the tip has a certain degree of plastic deformation.

Summary

(1) The bucket tooth material of the excavator is low-alloy wear-resistant steel, which is more suitable for bucket teeth. However, due to the lack of heat treatment, the structure of the bucket teeth of the excavator is not uniform, the insert does not play its role, and the overall wear resistance of the bucket teeth is poor, leading to early failure.

(2) It is recommended to properly normalize the castings after casting to improve the structure and performance and increase the service life of the bucket teeth of the excavator. After reasonable heat treatment of the casting, under the same working conditions, the service life of the bucket teeth of the excavator is increased by more than 2 times.

Yongfeng has the bucket teeth of high quality for sale, welcome to consult!