多臂机旋转变速机构凸轮廓线建模与重构  

Modeling and reconstruction of cam profile for dobby modulator

作　　者：肖志涛[1,2] 尹洪环 于鸿彬[2,3] 蒋秀明[2,3] 邵宏宇[4] XIAO Zhitao;YIN Honghuan;YU Hongbin;JIANG Xiuming;SHAO Hongyu(School of Electronics and Information Engineering,Tiangong University,Tianjin 300387,China;Key Laboratory of Advanced Mechatronics Equipment Technology,Tiangong University,Tianjin 300387,China;School of Mechanical Engineering,Tiangong University,Tianjin 300387,China;College of Mechanical Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津工业大学电子与信息工程学院,天津300387 [2]天津工业大学天津市现代机电装备技术重点实验室,天津300387 [3]天津工业大学机械工程学院,天津300387 [4]天津大学机械工程学院,天津300072

出　　处：《纺织学报》2020年第5期159-166,共8页Journal of Textile Research

基　　金：国家重点研发计划项目(2017YFB1104202)。

摘　　要：为提高旋转式多臂机的运动可靠性,对其旋转变速机构凸轮廓线进行建模求解,并运用粒子群算法进行凸轮廓线重构。首先,研究了旋转变速机构凸轮廓线数学模型构建方法,确定综框运动特性的多项式表达;其次,建立求解旋转变速机构凸轮廓线数学模型,获得基于综框运动特性的凸轮廓线,并建立多臂机提综机构数字样机,进行验证分析;最后,运用粒子群算法进行凸轮廓线重构方法研究,依据所构建的凸轮廓线逆向分析系统重构凸轮廓线。结果表明:提出的旋转变速机构凸轮廓线的数学求解方法,可基于粒子群算法进行凸轮廓线重构,显著提高凸轮廓线中心对称度。In order to improve the motion reliability of rotary dobby,mathematical modeling of cam profile for dobby modulators was established,and the particle swarm optimization algorithm was used to reconstruct the cam profile. Firstly,the mathematical model construction method for the cam profile was studied to determine the polynomial expression for the heald frame motion characteristics. Secondly,the mathematical model for the cam profile was established,and the cam profile based on the motion characteristics of the heald frame was obtained. The digital prototype of the dobby was used for verification analysis. Finally, the particle swarm optimization algorithm was used to study the cam profile reconstruction method,and the cam profile was reconstructed according to the cam profile reverse analysis system. The research shows that the mathematical method for solving the cam profile of the dobby modulator has led to the cam profile reconstruction,and the central symmetry of the cam profile is improved. This meets the heald frame motion characteristics and provides a new and effective way to optimize the shedding mechanism for weaving machines.

关 键 词：多臂机 粒子群 凸轮廓线 建模与重构 综框 运动特性 

分 类 号：TH112[机械工程—机械设计及理论]