锻压技术

400 kJ对击式液压模锻锤动力学参数优化

英文标题：Kinetic parameters optimization on 400 kJ counterblow hydraulic die forging hammer

单位：1.太原科技大学 2. 太重榆液长治液压有限公司 3.安阳锻压数控设备有限公司

分类号：TS913+.3

出版年,卷(期):页码：2023,48(11):141-150

摘要：

大吨位液压模锻锤由于系统工作压力高、流量大、工作条件恶劣，导致系统振动严重、打击频次低、打击能量不精确，且回程速度较大、撞缸现象严重。以CDKA系列400 kJ对击锤为研究对象，通过动力学分析，构造了优化目标评价函数模型，选取多组值对压强P、液压缸无杆腔直径D和联动油缸直径d4这3个重要参数进行了仿真研究，并优化了对击锤高压大流量液压系统参数。结果表明：最优的参数组合为P=17 MPa、D=Φ300 mm和d4=Φ60 mm，提高了打击频次，达到55次·min-1以上，稳定了打击能量，降低了回程的最终速度，低至1.86 m·s-1，减小了振动程度。

Due to the high working pressure large flow rate and harsh working conditions of the large-tonnage hydraulic die forging hammer, the system vibrates serious, the strike frequency is low, the striking energy is inaccurate, and the return speed is relatively high, resulting in serious cylinder collision phenomenon. Therefore, for CDKA series 400 kJ counterblow hammer, the optimization target evaluation function model was constructed by dynamic analysis, and multiple sets of values were selected for simulation research on three important parameters of pressure P, rodless cavity of hydraulic cylinder D and linkage cylinder diameter d4, and the parameters of high-pressure and large-flow rate hydraulic system for counterblow hammer were optimized. The results show that the optimized parameters conbination is P=17 MPa,D=Φ300 mm，d4=Φ60 mm. The strike frequency is improved of 55 times per min, the strike energy is stabilized, the final speed of return stroke is reduced of 1.86 m·s-1, and the degree of vibration is reduced.

基金项目：

山西省专利转化专项计划项目（202202060）

作者简介：弓成司（1997-），男，硕士研究生，E-mail：gtgt2580@163.com；通信作者：刘志奇（1972-），男，博士，教授，E-mail：liuzhiqi@tyust.edu.cn

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