Analysis of Meshing Stress and Structural Optimization of Chain Wheel and Chain of Scraper Conveyor
QIN Xiaoyun
Abstract：To address the issue of chain wheel failure in coal mine scraper conveyors,the SGB420/40T scraper conveyor chain wheel was taken as the research object.Through theoretical analysis,3D modeling,and finite element simulation,the meshing force of the chain wheel and chain was analyzed.The results showed that there was a stress concentration problem at the chain wheel chain pocket position,with a maximum stress value of 245 MPa,exceeding the material yield strength,indicating that this position was prone to fatigue damage.Based on this,the structure of the chain wheel chain pocket was optimized.Through orthogonal experiment comparison,the optimal optimization scheme was determined.After optimization,the maximum stress of the chain wheel was 210.4 MPa,a decrease of 15％.Verification through engineering practice showed that after optimization,the downtime for fault maintenance during actual use was reduced to 60％of the original,and the equipment operated stably,achieving the expected application effect.
Keywords：chain wheel and chainscraper conveyormeshing modeloptimization design
Publication Date：2025-10-30
Online Publishing Date：2025-12-24(First online date of this platform, not the publication date of the document)
Pages：4( 76-79 )