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d_(4)=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,d_(4)=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'',and the degree of vibration is reduced.
作者
弓成司
刘志奇
张宝成
朱文渊
Gong Chengsi;Liu Zhiqi;Zhang Baocheng;Zhu Wenyuan(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Taizhong Yuye Changzhi Hydraulic Co.,Ltd.,Taiyuan 030024,China;Anyang Forging CNC Equipment Co.,Ltd.,Anyang 456300,China)
出处
《锻压技术》
CAS
CSCD
北大核心
2023年第11期141-150,共10页
Forging & Stamping Technology
基金
山西省专利转化专项计划项目(202202060)。
关键词
对击式液压模锻锤
打击能量
打击频次
回程速度
振动
counterblow hydraulic die forging hammer
strike energy
strike frequency
speed of return stroke
vibration
