介绍了60 MN水压机的系统组成及工作原理,并采用机理建模的方法建立了水压机油控水系统的数学模型及控制框图。通过实验与仿真对比,分析空载大行程、重载小行程及高频小行程3种典型工况下的水压机油控水系统控制特性,并实验验证数学模型的准确性,进而研究水系统管道长度、主分配器手柄死区角度及活动横梁质量对水压机油控水系统控制性能的影响。研究表明,60 MN水压机在以上3种典型工况下具备较好的工作性能,若希望进一步提高水压机油控水系统的响应速度,可以从电液伺服系统和水系统两方面进行控制及优化设计。其中水系统的管长、主分配器死区、活动横梁质量均会对水压机油控水的控制性能产生不同程度的影响,在水压机结构优化设计时应重点考虑。 The system configuration and working principle of 60 MN hydraulic press are introduced. The mathematical model and control block diagram of hydraulic control system of hydraulic press are established by mechanism modeling method. Through the comparison of experiments and simulations, the control characteristics of hydraulic oil control system under three typical conditions of no-load large-stroke, heavy-duty small-stroke and high-frequency small-stroke are analyzed. The accuracy of the mathematical model is verified experimentally, Length, the angle of the dead zone of the main distributor handle and the quality of the movable beam on the control performance of hydraulic control system of hydraulic press. The results show that the 60 MN hydraulic press has better working performance under the above three typical conditions. If it is hoped to further improve the response speed of the hydraulic control system of hydraulic press, it can be controlled and optimized from the aspects of electro-hydraulic servo system and water system . The length of the water system, the dead zone of the main distributor and the quality of the movable beam all have different degrees of influence on the control performance of the hydraulic oil. In the optimization design of the hydraulic press, the key considerations should be given.