折弯机链轮的修形研究及其影响  

Research on Modification of Bending Machine Sprockets and Its Influence

作　　者：夏中瑞 王慧鹏 区健彬 Xia Zhongrui;Wang Huipeng;Ou Jianbin(School of Mechanical and Electrical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;Guangdong Shunde Innovative Design Institute,Foshan 528311,China)

机构地区：[1]江西理工大学机电工程学院,江西赣州341000 [2]广东顺德创新设计研究院,广东佛山528311

出　　处：《机械传动》2024年第1期159-164,共6页Journal of Mechanical Transmission

摘　　要：针对某折弯机链传动系统引起的冲击和疲劳破坏问题,对链传动的动态特性和链轮的修形进行了分析研究。从理论角度上分析了链传动的运行特点;利用RecurDyn软件建立了折弯机链传动系统的仿真模型,对其进行了动力学仿真分析和轮齿静强度分析;采用齿顶圆修形的方法,建立了短修形和长修形两种修形后的仿真模型,得到修形后从动链轮受力、啮合力、传动误差和链轮轮齿静强度的变化曲线图。研究结果表明,短修形有效降低了折弯机链传动过程中的啮合冲击力,链轮链条间啮合力峰值下降了43.64%,轮齿所受等效应力最大值降低了14.69%,有效提高了齿面强度,增加了链轮的使用寿命,相较于长修形更适用于折弯机链传动系统。In view of the impact and fatigue failure caused by the chain transmission system of a bending machine,the dynamic characteristics of the chain drive and the modification of the sprocket are analyzed and studied.First of all,the operation characteristics of the chain drive are analyzed theoretically.Then the simulation model of the bending machine chain drive system is established by using the RecurDyn software,and the dynamic simulation analysis and gear tooth static strength analysis are carried out.Finally,by using the method of tooth tip circle modification,the simulation models of short-modification and long-modification are established,and the variation curves of force,meshing force,transmission error and static strength of sprocket teeth are obtained.The research results show that the short-modification effectively reduces the meshing impact force in the meshing process of the bending machine chain transmission,the peak meshing force between the sprocket chains is reduced by 43.64%,and the maximum equivalent stress of the gear teeth is reduced by 14.69%.It effectively improves the tooth surface strength,increases the service life of the sprocket,and is more suitable for the chain transmission system of the bending machine than the long-modification.

关 键 词：链传动 动力学仿真 静强度分析 链轮 齿顶圆修形 

分 类 号：TH132.45[机械工程—机械制造及自动化] TG305[金属学及工艺—金属压力加工]