【摘要】 基于散体力学的极限滑移理论，分析了悬链斗卸船机在挖取物料过程中斗刃的运动轨迹、物料的堆积表面及斗口处物料滑移线，根据所选研究对象的受力特性建立了挖料阻力的数学模型，并针对实例进行了验算．此模型模拟了实际挖料过程，反映了斗前角等因素对挖料阻力的影响，揭示了挖料阻力的变化规律，从而为悬链斗卸船机的设计提供理论依据．更多还原

【Abstract】 Based on the bulk cargo mechanics,it tries to analyse the blade’s motion locus,the bulk stack surface and the sliding curve in the blade,to set up a mathematical model according to the forced characteristic of the study object,and to do checking computation for actual example. The model simulates the digging process,reflects the influence of the bucket front angle and so on,so as to provide theoretical basis for the design of catenary chain-bucket barge unloader(CCBBU).更多还原