摘要 本文详细叙述了重型多轴全挂车EQ9450T液压系统的设计过程。其液压系统主要由液压悬架、三点支承、液压全轮助力转向、悬挂油管防爆破安全阀、动力机组等结构组成。对满载时的液压悬挂进行受力分析和工作压力计算,并以此为依据对液压泵进行选型和确定柴油机输出给动力机组的功率。关键词:液压悬架,三点支承,液压全轮助力转向,动力机组 AbstractThis paper described in details the course of the design in hydraulic system of heavy multi-axis full trailer of EQ9450T. the hydraulic system composed from hydraulic suspension, three point supporting, hydraulic full-wheel power steering, hanging oil pipe prevent blastin