Finite Element Analysis and Structure Optimization of the Middle Groove of Scraper Conveyor

The middle groove is the most used and consumed component of the scraper conveyor. Its strength, rigid and wear resistance play an important role in the normal operation of the scraper conveyor. In this paper, the finite element analysis of the 1350 scraper conveyor is carried out of nonlinear finite element method, and the plastic deformation of the concave and convex ends of the groove is obtained during the tension and compression process. In order to prevent the phenomenon of the concave end of the groove, the paper proposes three methods to improve the performance of the middle groove. Through analysis and comparison, an optimization method is proposed to reduce the stress value during the tension and compression process by increasing the length of dumbbell rod concave end section and the diameter of the bell mouth, thus improving the reliability of the scraper conveyor. (paper)