Study of the load on the teeth of the excavator bucket

Abstract

The article discusses the influence of the long and short teeth of the excavator bucket on the efficiency of work. It was studied based on the analysis of patent solutions and numerical modeling in SolidWorks Simulation. The relevance of the study has shown that it is associated with the importance of choosing the right tooth length, adapted to different types of soil. The purpose of the study is a comparative assessment of the strength characteristics of long and short teeth, the state of stress – deformation and resistance to penetration into the soil. As a methodology, it included the calculation of the anti-excavation resistance force, the analysis of patents from the United States, Europe, China and Russia, the creation of 3D models and static modeling in SolidWorks. In addition, the calculation was carried out. The main results showed that long teeth can increase their ability to penetrate dense soils, reducing the peak loads that arise in the scoop, but their bottom stresses are higher. Short teeth provide a smooth distribution of tension and last longer on medium or soft soil. The relevance of the study is reinforced by the fact that modern earthmoving machines operate in conditions of variable soil density, which requires universal solutions. Optimizing the length of the teeth allows you to reduce energy consumption, increase productivity and increase the resource of equipment. In this regard, recommendations have been made.