关键词: 链环材料, 三体磨损, 硬度, 磨料粒度, 耐磨性能

Abstract: [Objective] In order to solve the scraper conveyor in the process of transporting coal, the scraper chain system will produce three-body wear resulting in chain ring wear inefficiency. [Processes and methods] In this study, the abrasive wear test was carried out by abrasive wear testing machine, and the abrasion characteristics and wear resistance of three kinds of scraper conveyor chain ring materials (YXKB2 steel, 54 steel, and 25MnVK steel) were analyzed by orthogonal test as well as one-way test with different factors (abrasive ratio, abrasive grain size, and hardness of the chain ring materials). [Conclusions] The test results show that the effect of abrasive ratio on the amount of material wear is the most significant, and the coupling effect of abrasive ratio and abrasive grit size is the second most significant. Under equal mass abrasive conditions, the wear of YXKB2 steel decreases with increasing abrasive grit size, but in the three-body wear process, abrasive fragmentation leads to a non-significant effect of abrasive grit size on material wear. The hardness of the three chain ring materials was positively correlated with the wear resistance. Within the range of test conditions, the wear resistance of the three materials is YXKB2 steel, 25MnVK steel, and 54 steel in descending order. This study is of guiding significance for selecting the chain ring material with the best wear resistance.