天津工业大学学报2024，Vol.43Issue(3)：82-88,7.DOI:10.3969/j.issn.1671-024x.2024.03.011
间隔织物双剑杆织机平行打纬机构箱体的振动分析
Vibration analysis of parallel beating up mechanism box of double rapier loom for spacer fabric
摘要
Abstract
Aiming at the problem that the parallel beating up mechanism box of double rapier loom with conjugate cam and four-bar linkage generates strong vibration with the increase of loom speed,which destroys the accuracy and reliability of beating up,the dynamic stress and vibration characteristics of the beating up mechanism and box are studied by combining theoretical analysis with virtual simulation.The dynamic static analysis equation of parallel beating up mechanism is established,and the multi-body dynamics simulation of the mechanism is carried out using ADAMS software to solve the reaction force on the box.The system model of box-spring damping-flexible foundation is built,the forced vibration of box in vertical direction is analyzed,and the method to reduce the vibration of box is explored in the simulation process.The results show that the peak value of the reaction force on the box body at the shaft hole of the swing arm is the largest,and the force on the box body is the most concentrated during the beating up and pushing process.When the cam shaft rotates at 260 r/min,the gear meshing frequency is equal to the first order natural frequency of the box,which will produce resonance.The speed should be avoided during operation.The box produces periodic vibration in the vertical direction.Increasing the number of bolts and adding dynamic shock absorbers will help to improve the vibration characteristics of the box,the amplitude decrease by 38％and 23％,respectively.关键词
双剑杆织机/平行打纬机构/支反力/动态静力分析/弹簧阻尼/减振Key words
double rapier loom/parallel beating up mechanism/support reaction force/dynamic static analysis/spring damping/damping分类
轻工纺织引用本文复制引用
杨建成,刘艳哲,黄子文,赵全鹏,刘健..间隔织物双剑杆织机平行打纬机构箱体的振动分析[J].天津工业大学学报,2024,43(3):82-88,7.基金项目
国家重点研发计划项目(2018YB1308801) （2018YB1308801）
