Transactions of Materials and Heat Treatment

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

Authors： Liang Jintao Zhao Shengdun Zhu Muzhi Li Jingxiang Zhao Yongqiang

Unit： Xi'an Jiaotong University

KeyWords： forging hammer blow hydraulic valve electromagnetic direct driving finite element analysis

ClassificationCode：

year,vol(issue):pagenumber：2014,39(10):84-88

Abstract：

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 blow 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.

Funds：

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)

梁锦涛（1984-），男，博士研究生

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