Analysis and Discussion of Bucket Teeth（1）

Analysis and Discussion of Bucket Teeth I
The force analysis shows that the working surface of the bucket teeth is in contact with the excavated object, and the force situation varies during different working stages of a complete excavation process. When the tooth tip first contacts the surface of the material, the bucket tooth tip is subjected to a strong impact due to its fast speed. If the yield strength of the bucket teeth is low, plastic deformation will occur at the tip. As the excavation depth increases, the force on the bucket teeth will change. When the bucket teeth cut the material, the bucket teeth move relative to the material, generating a large positive extrusion pressure on the surface, thereby generating a large friction force between the bucket teeth working surface and the material. If the material is hard rock blocks, concrete, etc., the friction force will be significant. The repeated effects of this process result in varying degrees of surface wear on the working surface of the bucket teeth, resulting in deeper furrows. The composition of the bucket teeth affects the lifespan of the bucket teeth. Of course, choosing bucket teeth is more cautious and confusing. I have also used bucket teeth, and the effect is good! The positive pressure on the front working face is significantly greater than that on the rear working face, and the front working face is severely worn. It can be determined that positive pressure and friction are the main external mechanical factors for the failure of the bucket teeth, playing a major role in the process of failure.