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分析讨论SBBLDL25型负载传感电液比例控制多路阀的技术参数和性能指标,着重描述该阀负载传感、压力补偿和比例方向阀系统,以及实现多个执行机构复合动作的核心控制技术,以详实图片讲述了该阀的结构和技术特征,该阀集成度很高且部件排列有序,构造复杂。电比例减压阀与该阀系统匹配是电液技术结合的关键点。该阀与电子操纵、微处理器、负载敏感变量泵有机组合成为可精确控制能量、易操纵的液压系统,以满足高端汽车起重机工况的复杂、环保和安全性要求。该多路阀已批量使用在QY60～70型汽车起重机上。
Analysis and discussion of SBBLDL25 load sensing electro-hydraulic proportional control multi-way valve technical parameters and performance indicators, focusing on the valve load sensing, pressure compensation and proportional directional valve system, and to achieve a plurality of actuators complex action of the core control technology, With a detailed picture of the structure and technical characteristics of the valve, the valve is highly integrated and components arranged in an orderly, complex structure. Electro-proportional valve and the valve system to match the electro-hydraulic technology is the key point. The valve and the electronic control, microprocessor, load-sensitive variable displacement pump organically integrated into precise control of energy, easy to operate hydraulic system to meet the high-end truck crane operating conditions of complex, environmental and safety requirements. The multi-way valve has been used in batch QY60 ~ 70 type truck crane.