Design and Analysis of Hardness Improvement on Excavator Bucket Teeth

Mechanical

The Excavator bucket tooth has to bear heavy loads of materials like soil, rock and subjected to abrasion wear due to the abrasive nature of soil particles. Its tooth got damaged due to abrasive wear and impact load. This paper deals with review of Excavators bucket tooth analysis to find out its actual failure. Excavators used in mining industry have bucket teeth usually made up of hard alloys. In order to improve the anti-wear properties of these alloys coatings are provided. The purpose of the present work is to make the deformation analysis of the bucket teeth. It was observed that maximum stress occurred at the fixed joint of teeth and tongue, while the maximum wear takes place at the tip of tooth. The abrasive nature of soil is one of the reasons of tip wear. An excavator is a typical hydraulic heavy - duty human - operated machine used in general versatile construction operations, such as digging, ground leveling, carrying loads, dumping loads and straight traction. After doing such operation, there is possibility of breaking of pin in tooth adapter assembly as well as bending of tooth point. The objective of this paper is to design an excavator bucket by using SOLID WORKS software. Model is exported through IGES file format for meshing in analysis software Boundary conditions and the forces are applied at the tip of teeth of excavator bucket. Static analysis is done in ANSYS 13.0 analysis software. In this paper the stresses developed at the tip of excavator bucket teeth are calculated. Percentage error between stress Analytical result and stress ANSYS result are calculated.

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