摘要
为分析有限转角钢带系统的传动特性以及预紧张力对其输出特性的影响,建立有限转角钢带传动系统的蠕滑率和传动比数学模型,开展有限转角钢带蠕滑率和传动比的影响因素研究。在建立刚柔耦合动力学模型、钢带预紧张力计算数学模型基础上,通过多体动力学仿真软件和物理样机实验开展预紧张力对系统输出特性的影响研究。研究结果表明:钢带厚度、翻滚角、翻滚角速度与钢带传动速度比、横向位移以及摩擦轮半径是钢带蠕滑率和传动比的主要影响因素;预紧张力越大,钢带系统的输出转角偏差越小,系统输出精度越高且传动越平稳;当预紧力为11 N时,系统超调量为40%,输出角度误差为6.4%;当预紧力增加到84 N时,超调量减小到1%,输出响应时间减小为原来的20%,且输出角度误差减小到1.4%;蠕滑率、传动比和预紧张力的数学模型可为有限转角钢带传动系统研究提供理论基础和有效参考。
A mathematical model of the limited angle steel belt transmission system is established to analyze its transmission characteristics and the influence of pre-tension on its output characteristics,and the influencing factors of the limited angle steel belt creep rate and transmission ratio are studied.Based on the rigid-flexible coupling dynamics model and the mathematical model for calculating the pre-tension force of steel belt,the influence of pre-tension force on the output characteristics of the transmission system is studied through the multi-body dynamics simulation software and the physical prototype experiment.The results show that the thickness of steel belt,the rolling angle,the ratio of rolling angular velocity to steel belt transmission speed,the transverse displacement and the radius of friction wheel are the main factors affecting the creep rate and transmission ratio of steel belt.The larger the pre-tension force is,the smaller the deviation of output angle is,the higher the output precision is,and the more stable the transmission is.When the pre-tension force is 11 N,the overshoot is 40%and the output angle error is 6.4%.When the pre-tension force increases to 84 N,the overshoot decreases to 1%,the response time decreases to 20%,and the output angle error decreases to 1.4%.The mathematical model of creep rate,transmission ratio and pre-tension force can provide theoretical basis and effective reference for the research on limited angle steel belt transmission system.
作者
鲁强
高志峰
钟小兵
戴军
黄秋
胡绍云
LU Qiang;GAO Zhifeng;ZHONG Xiaobin;DAI Jun;HUANG Qiu;HU Shaoyun(Southwest Institute of Technical Physics,Chengdu 610200,Sichuan,China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2022年第3期676-685,共10页
Acta Armamentarii
基金
“十三五”装备预先研究专用技术项目(2016年)。
关键词
有限转角钢带
预紧张力
传动特性
蠕滑率
刚柔耦合
limited angle steel belt
pre-tension force
transmission characteristic
creep rate
rigid-flexible coupling
作者简介
鲁强(1990-),男,工程师,硕士。E-mail:strongerchance@163.com;通信作者:高志峰(1965-),男,研究员,硕士生导师。E-mail:739061632@qq.com。
