【摘要】 近年来，各类装备正朝着高端化、绿色化方向发展，对液压系统的轻量化、集成化和绿色化提出了更高要求。油路块作为液压系统集成设计的核心部件，广泛应用于各类工业装备，实际应用中存在重量体积大、流道压损高、结构工艺复杂等问题，制约了整机装备及液压系统性能的进一步提升。为此，提出一种液压系统低压损无阀块集成化设计方法，将各类控制阀、功能附件及油路块进行一体化集成设计，采用铸造方法替代传统机加工方式，以实现管路平滑过渡、缩短流道路径等流道结构优化重构，在降低压损的同时，实现液压系统的集成化与轻量化设计。研究中，首先以硫化鞋机开合模自调控制系统为对象，介绍了液压系统的工作原理和原机系统阀组构成；进一步采用计算流体动力学(CFD)方法，对比分析原油路块阀组与集成阀组的压力云图分布及压损情况。结果表明：相较原有油路块阀组产品，设计的集成阀组空间体积减少53.76%,重量降低约74%,流道压力损失降低50%以上，并有助于简化制造工艺流程、降低生产成本，为现有工业装备的液压系统低压损集成设计提供一种新的思路和方法。更多还原

【Abstract】 In recent years, the development of various types of equipment towards high-end and green technologies has imposed higher demands for lightweight, integrated, and environmentally friendly hydraulic systems. As a core component of hydraulic system integration, manifold blocks are widely used in industrial equipment. However, practical applications face challenges such as excessive weight and volume, high flow path pressure losses and complex structural processes, which hinder further improvements in the performance of both the equipment and hydraulic systems. To address these issues, this study proposes a low-pressure-loss, valve-less integrated design method for hydraulic systems. This approach consolidates various control valves, functional accessories and manifold blocks into a unified design, replacing traditional machining methods with casting techniques to optimize flow path structures through smooth transitions and shortened flow paths. This not only reduces pressure losses but also achieves integrated and lightweight hydraulic system design. The research focuses on the automatic mold opening and closing control system of shoe vulcanizing machines. It begins by detailing the working principles of the hydraulic system and the composition of the original valve assembly. Subsequently, a comparative analysis using computational fluid dynamics(CFD) was conducted to examine the pressure distribution and pressure loss characteristics between the conventional manifold block valve assembly and the integrated valve assembly. The results demonstrate that compared to the original manifold block valve assembly in the shoe vulcanizing machine, the proposed integrated design reduces spatial volume by 53.76%, decreases weight by approximately 74% and lowers flow path pressure losses by over 50%.Additionally, this method simplifies the manufacturing processes and reduces production costs. The study provides a novel approach and methodology for the low-pressure-loss integrated design of hydraulic systems in existing industrial equipment, offering valuable insights for future advancements in this field.更多还原