多梳栉经编机成圈运动及其机构分析与设计  

Knitting Motion Analysis and Mechanism Design for Multi-bar Warp Knitting Machine

作　　者：沈惠平[1] 李密[1] 王敏其 王水 尹洪波[1] 左双双[1] 

机构地区：[1]常州大学,常州213016 [2]常州市武进五洋纺织机械有限公司,常州213164

出　　处：《中国机械工程》2015年第11期1457-1463,1470,共8页China Mechanical Engineering

基　　金：江苏省科技成果转化专项资金资助项目(BA2013030);国家自然科学基金资助项目(51375062)

摘　　要：在吸收、掌握国外经编机机构设计精髓的基础上,对多梳栉经编机的成圈运动及其机构实现进行了深入研究。首先,介绍了成圈机构、成圈过程及其工作原理,设计出具有停歇功能的斯蒂芬森六杆传动机构,并通过共享一个不同相位角的三拐曲轴,将三个六杆传动机构与3-DOF平面八杆成圈子机构串接,设计出单主轴驱动的3-DOF平面22杆经编成圈主机构,并进行机构运动学分析;然后,根据梳栉上导纱针的排布以及成圈工艺,规划成圈运动轨迹的关键特征点,并用最小二乘法拟合出各运动轨迹的多项式函数;最后,对3-DOF平面22杆经编成圈主机构进行整体建模分析,并运用遗传算法对其进行了基于成圈运动轨迹逼近的机构参数优化设计。On the basis of understanding basic principles for mechanism design of foreign warp knitting machines,knitting motion and the mechanism for performing the motion were studied sys-tematically.Firstly,knitting mechanism,knitting processes and its working principles were introduced and Stephenson 6-link transmission mechanism with intermittent function was designed.By sharing a three-thrown crank shaft,three 6-link transmission mechanisms and 3-DOF plane 8-link knitting sub-mechanism were concatenated.A 3-DOF plane 22-link knitting main mechanism with single driving axis was designed and its kinematics property was also analyzed.Secondly,the key feature points of knitting action were planned based on the configuration of guide needles and knitting processes and the polynomial function of each trajectory was obtained by least square method.Further,the whole physi-cal model of the 3-DOF plane 22-link knitting main mechanism was analyzed and optimum design of mechanism parameters was conducted based on the knitting action trajectory approaching using genet-ic algorithm.

关 键 词：经编机 平面连杆机构 停歇机构 轨迹综合 遗传算法 

分 类 号：TH11[机械工程—机械设计及理论]