高速织机中消极式开口凸轮的动力学设计  

Dynamic design of negative shedding cam in high-speed looms

作　　者：魏展[1,2] 金国光[1,2] 畅博彦[1,2] 李丹丹[1,2] 

机构地区：[1]天津工业大学机械工程学院,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

出　　处：《天津工业大学学报》2014年第2期53-56,61,共5页Journal of Tiangong University

基　　金：国家自然科学基金资助项目(51275352)

摘　　要：建立了高速织机中凸轮机构的动力学模型,并简化为单自由度弹性动力学模型;以凸轮轮廓曲线光滑无冲击为目标,构建凸轮开口机构动力学设计模型,进而推导出凸轮轮廓线设计方程.利用该方程对一个实例进行仿真设计,得出了凸轮轮廓设计曲线.得到的高次多项式曲线光滑而无冲击,满足凸轮高速运转时的动力学特性要求,验证了凸轮开口机构动力学设计模型的有效性和正确性.The dynamic model of cam mechanisms in high-speed loom is builded and simplified into a single-free-degree elastodynamics modeling. The dynamic design model of cam shedding mechanism is set up , with the aim of making the cam contour line smooth without impact, and then the design equation of the cam contour line is calculated, which is used to construct a simulation design for a case so as to form the curve the research needs. The polynomial curve obtained is smooth without impact and satisfies the need of dynamic features of cam in high-speed loom. The validity and the correctness of dynamic design model is proved by simulation results.

关 键 词：高速织机 消极式开口凸轮 动力学模型 轮廓线 动力学方程 

分 类 号：TS103.133[轻工技术与工程—纺织工程] TH112.2[轻工技术与工程—纺织科学与工程]