铣床主轴箱参数设计

铣床作为传统机械行业最基础的加工设备,广泛应用于各种领域中,而主轴变速箱是铣床中最为重要的部分,是保证各种产品精确加工的主要组成,它为主轴的不同转速切削提供了有效的保障文章针对X6132铣床主轴箱进行剖析研究,详尽的计算了铣床主轴箱标准参数,通过参考传统主轴箱参数设计传动零部件,得出了配套齿轮参数表,达到可直接应用于生产工业零部件并符合强度等要求的目的,对其他机械加工设备及参数选择有参考意义。     

Simulation study of foundations reinforced with horizontal-vertical inclusions using particle flow code

A two-dimensional discrete element code, particle flow code (PFC2D), is employed to investigate foundations reinforced with horizontal-vertical (H-V) inclusions. The initial states and loading processes of both unreinforced and H-V reinforced foundations are simulated by PFC 2D method. The interface between particles and reinforcements, and the reinforcement mechanism of the H-V reinforced foundations are studied through stress distribution graphs, displacement vector graphs and contact force graphs. The simulation results demonstrate that the vertical elements of the H-V reinforcement keep the particles from being displaced under the applied load. The H-V reinforcement can distribute the load uniformly over a wider area, thereby improving the bearing capacity of soil foundation.