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- W2386184244 abstract "Aimed at improving the self-rotation of conical bit teeth and addressing the eccentric wear and abrasion of conical bit teeth as when shearers are used to cut coal and rock,this paper begins with the analysis of self-rotation principle under different cutting states,the consideration of different conditions in which cutting tooth comes into contact with coal and rock,and the exploration of self-rotation mechanism in groove asymmetry and V-caving condition.The paper proceeds with the development of self-rotation model on parameters associated with conical bit structure,installation and,the nature of the coal and rock cutter under stress and the quantitative method of self-rotation on conical bit.The simulation of the influencing factors and theoretical conditions on the self-rotation shows that the most important factors affecting the cutter self-rotation are the nature of coal and rock and action radius of cutting tooth tip.The cutter self-rotation involves the boundary conditions;the tooth tip half-angle in the range of32°~40°,the wedge angle in the range of 38.9° ~ 50°,the action radius in the range of 8.5 ~ 10.0mm,and the friction coefficient in the range of 0.60 ~0.84.The mechanical model and research method as discussed may serve as the theoretical foundation for the complex condition of cutter rotation condition." @default.
- W2386184244 created "2016-06-24" @default.
- W2386184244 creator A5060319607 @default.
- W2386184244 date "2014-01-01" @default.
- W2386184244 modified "2023-09-27" @default.
- W2386184244 title "Self-rotation mechanical mechanism of conical bit from cutting coal condition" @default.
- W2386184244 hasPublicationYear "2014" @default.
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