基于Pro/E的织机打纬系统载荷特性研究

针对织机打纬机构对主轴的载荷变化规律影响的问题,通过Pro/E建立了打纬机构的三维模型,利用其中的机构分析模块对打纬机构进行了动态仿真,以喷气织机四连杆打纬机构和剑杆织机共轭凸轮打纬机构为例,采用定性与定量相结合的方法,对比分析了打纬机构中各构件的等效转动惯量变化规律及分布规律;分析了打纬机构筘座系统惯性能克服的阻力及其变化规律。研究结果表明,筘座系统的主轴等效转动惯量约占整个打纬系统主轴等效转动惯量的75%,通过对比分析得到了两种织机的最佳打纬区域及完全惯性打纬的阻力范围,为合理设计打纬机构的结构参数提供了理论依据。

Beating-up mechanism in rapier loom based on Pro/E loading characteristic

Aiming at the changes of main shaft loading that comes from the beating-up mechanism in loom,the 3D model of beating-up mechanism was established based on Pro/E,mechanism module was used to make dynamic simulation for beating-up mechanism,four-bar beating-up mechanism in air-jet loom and conjugate CAM beating-up mechanism in rapier loom were used as an example,the qualitative and quantitative methods were used,the changes and distributions of equivalent moment of inertia on main shaft for every component in beating-up mechanism were contrasted.The resistance that inertia of sley system can overcome and its changes were analyzed.The results indicate that the ratio of equivalent moment of inertia on main shaft between sley system and beating-up system is 75％.The best beating-up range and the range of resistance that inertia beating-up can overcome for two different looms are gotten,they provide theory basis for design the structure parametes of beating-up mechanism reasonablely.