【摘要】 为优化设计集矿机的机构,分析了行走履带板、齿间黏附稀软底质对集矿机附着性能的影响。该文分析了集矿机的履带板、齿与稀软底质的黏附,通过建立集矿机在稀软底质上的附着力数学模型,理论研究稀软底质的物理力学参数和集矿机结构参数对其附着性能的影响。稀软底质的物理力学特性和履带板、齿材料特性等因素影响了底质的黏附,稀软底质在链环上依次分布沿前进方向逐渐减少,黏附底质使集矿机的附加重量和接地压力约增加25%。集矿机的附着力由内聚作用力、驱动力、摩擦阻力和内摩擦作用力等组成,前二者分别约占附着力的40.6%和33.8%,内摩擦作用力和摩擦阻力可忽略。履齿的有效剪切高度降低,大大降低了集矿机的附着力,集矿机的齿高应设计为15cm。履带板、齿间黏附底质降低了集矿机的附着性能。更多还原

【Abstract】 To optimize the design of seabed tracked vehicle,the influence of seabed soft sediment between the track plate and track shoe on the adhesion performance of seabed tracked vehicle was analyzed.The adhesion mechanism between seabed tracked vehicle and seabed soft sediment was analyzed and adhesion mechanics model was established.The effect of the physical and mechanical properties of seabed soft sediment and the material properties of track plate and track shoe on the adhesion performance was researched theoretically.Physical and mechanical properties of seabed soft sediment and the material properties of track plate and track shoe had affacts on the adhesion.Distribution of the sediment in the chain link along the forward direction was gradually reduced.The grounding pressure and additional weight increased by 25%.The largest effect on the adhesion was cohesive force,followed by driving force and internal friction force and friction could be neglected.The proportion of the former two were respectly 40.6% and 33.8%.The effective shear height of track shoe was lower,which greatly reduced the adhesion performance,and the hight of track shoe should be designed to be 15 cm.The adhesion performance of the seabed tracked vehicle soft seabed sediments is decreased due to the soft sediment adhered to its tracks.更多还原