摘要
金属打包机液压缸在工作状态下往往会受到高压载荷作用,其应力集中区域主要分布在液压缸缸筒和方法兰的连接处。研究利用有限元数值模拟技术对400 t液压缸在工作状态下缸筒和方法兰连接处的受力情况进行了仿真模拟,具体分析了焊接加强筋、焊接加强筋半径、方法兰厚度以及焊缝宽度对液压缸强度的影响,最后通过理论分析和数据拟合得出较为合理的结构与尺寸。分析结果显示,液压缸与方法兰连接处添加焊接加强筋,焊接加强筋的半径为50mm为宜,方法兰厚度为170mm,焊缝的宽度为50mm,这样得出的400t液压缸整体结构更为稳定。
Hydraulic cylinder of metal baler is often subjected to high pressure load under working condition, and its stress concentration areas are mainly distributed at the junction of the cylinder barrel and the flange. In this study, the finite element numerical simulation technology is used to simulate the stress on the junction of cylinder barrel and the flange of 400 t hydraulic cylinder under working condition. And the influence of welding reinforcement, the radius of welding reinforcement, the thickness of the flange and the width of the weld seam on the strength of hydraulic cylinder are analyzed in detail. Finally, the reasonable structure and size are obtained through theoretical analysis and data fitting. The analysis results show that when the radius of the welding reinforcement is 50 mm, the thickness of the flange is 170 mm, and the width of the welding seam is 50 mm, the overall structure of the 400 t hydraulic cylinder is more stable after adding the welding reinforcement to the junction of the hydraulic cylinder and the flange.
作者
李响
魏厚先
陈永清
唐善杰
张友锋
LI Xiang;WEI Houxian;CHEN Yongqing;TANG Shanjie;ZHANG Youfeng(Hubei Key Laboratory of Hydroelectric Machinery Design and Maintenance,Three Gorges University,Yichang 443002,China;School of Machinery and Power,Three Gorges University,Yichang 443002,China;Hubei Lidi Machine Tool Co.,Ltd.,Yichang 443002,China)
出处
《机械》
2020年第3期7-13,共7页
Machinery
基金
国家自然科学基金资助项目(51305232)
湖北省教育厅科学技术研究计划重点项目(D20181206)
水电机械设备设计与维护湖北省重点实验室开放基金资助项目(2017KJX04)。
关键词
400
t液压缸
数值模拟
焊接加强筋
方法兰
焊缝宽度
400 t hydraulic cylinder
numerical simulation
welding reinforcement
flange
weld width