一种数控模锻锤用打击液压阀的电磁直驱式设计  

Design on an electromagnetic direct driving blow hydraulic valve of CNC forging hammer

作　　者：梁锦涛[1] 赵升吨[1] 朱牧之[1] 李靖祥[1] 赵永强[1,2] 

机构地区：[1]西安交通大学机械工程学院,陕西西安710049 [2]陕西理工学院机械工程学院,陕西汉中723000

出　　处：《锻压技术》2014年第10期84-89,共6页Forging & Stamping Technology

基　　金：国家自然科学基金资助项目(51305333);国家科技重大专项资助项目(2012ZX04004021));西安市科技计划资助项目(CX12176 2)

摘　　要：打击液压阀是数控全液压模锻锤的核心部件,控制着模锻锤的打击和提锤等主要动作。设计一种电磁直驱式打击液压阀,可以实现对阀芯位置的精确控制,同时省去中间传动环节和部分液压元件。首先对液压打击阀的整体结构进行设计,并设计电磁直驱部分的拓扑结构,使其具有很强的可控性和鲁棒性。根据打击阀的驱动要求计算直驱部分的结构参数,使其输出额定推力达到1000 N,额定速度为0.55 m·s-1。对直驱部分进行电磁场有限元仿真分析,消除磁路的饱和现象,并对输出推力脉动进行优化,使其平均幅值降低43.9%。配合现有的交流伺服控制,使其满足设计打击阀的直接驱动要求。Blow hydraulic valve is the core component of CNC hydraulic forging hammer, which controls the stroke and return action of the hammer. A novel electromagnetic direct driving blow hydraulic valve was presented, which can control the position of the valve core accurately, and eliminate the transmission process and simplify the hydraulic system. First, the whole structure of the hlow hydraulic valve was introduced, and then the topology structure of the direct drive part was designed, which exhibits strong controllability and robustness. The structure parameters were calculated referring to the driving requirement, and the output rated force was up to 1000N, and the rated speed was 0. 55 m · s-1 . Further, the electromagnetic finite element analysis of the direct driving part was realized, saturation phenomenon of the magnetic circuit was eliminated. Optimization of the output force ripple was performed, which reduced the ripple amplitude as 43.9%. Combining with current AC servo control, the electromagnetic direct driving part satisfies the direct driving requirement of the blow hydraulic valve.

关 键 词：模锻锤 打击液压阀 电磁直驱 有限元分析 

分 类 号：TG315.3[金属学及工艺—金属压力加工]