摘要
针对精梳机机械式分离罗拉传动机构振动限制车速提高的问题,提出了由双伺服电动机单向驱动分离罗拉的方案。首先,根据精梳工艺要求,对分离罗拉运动状态中的位移关键点进行优化拟合,得到满足分离罗拉运动规律的曲线。其次,基于混合驱动的思想,将运动规律合理地分配到2个动力源。最后,在Adams环境中建立虚拟样机进行仿真分析并进行实验验证。结果表明:该方案能够准确实现分离罗拉的运动规律,并且2个伺服电动机中角加速度最大值相比伺服电动机直接驱动分离罗拉方案减小72. 05%,有利于降低能源消耗;该设计不但消除了机械结构振动限制车速提高的问题,还可根据不同棉花种类的工艺对车速进行调节,增加了机构的柔性。
Aiming at the problem of the speed limit of the vibration of the mechanical detaching roller drive mechanism of the comber,the scheme of the single-drive detaching roller of the dual servo motor was proposed.First of all,according to the requirement of the combing technology,based on the idea of least square method,a curve was optimized to fit the displacement key points in the moving state of the detaching roller,and it satisfied the rule of the detaching roller motion.Secondly,based on the idea of hybrid-drive,the motion law was reasonably distributed to two power sources.Finally,virtual prototype was established in Adams environment for simulation analysis and was verified by experiment.The research results show that this scheme can accurately realize the motion law of the separation roller.The maximum angular acceleration of the two servo motors decreases by 72.05% compared with that of the single servo motor,which is beneficial to reduce energy consumption.The design eliminates the limitation in speed due to the vibration of mechanical structure.The speed can be adjusted according to different kinds of cotton,which increases the flexibility of the mechanism.
作者
杨海鹏
李新荣
吕鹏飞
王振宇
YANG Haipeng;LI Xinrong;Lv Pengfei;WANG Zhenyu(School of Mechanical Engineering,Tianjin Polytechnic University,Tianjin300387,China;Key Laboratory of Modern Mechanical and Electrical Equipment Technology,Tianjin300387,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2019年第4期122-128,共7页
Journal of Textile Research
关键词
精梳机
混合驱动
分离罗拉
传动机构
差动轮系
comber
hybrid-driven
detaching roller
drive mechanism
differential gear train
