The largest excavator accessories distribution center of China.
1. Analysis from the aspect of force
The area of the force of the tooth is in contact with the object to be excavated, and the force is different in different working stages in a complete excavation process. When the tip of the tooth first contacts the surface of the material, the tip of the tip is subjected to a strong impact due to the faster speed. If the yield strength of the teeth is low, plastic deformation will occur at the tip. As the depth of the excavation increases, the force on the tooth will change.
2. Analysis of work situation
When the tooth cuts the material, the tooth moves relative to the material, and a large positive pressing force is generated on the surface, thereby generating a large friction force between the force receiving area of the tooth and the material. If the material is hard rock, concrete, the friction will be very large. Under the action of repeated processes, different degrees of surface wear occur on the tooth working face, which results in a furrow with a deeper depth.
