Analysis of tri-roller bearing load distribution and non-dismantling detection method for main bearings in full-face tunnel boring machines
This paper primarily analyzes the structural configuration of the triple-row rollers of the main thrust bearing in a full-face tunnel boring machine(TBM)and the loading conditions under different operational scenarios.Through computational analysis,the study elucidates the interrelation between the wear patterns of the triple-row rollers in the main bearing of a full-face TBM and the overall bearing lifespan.A valuable periodic wear detection scheme for main bearings is proposed for tunnel engineering projects.
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