基于ADAMS的移动滚轮托架输送机关键部件(钢丝绳)动态特性分析  

DYNAMIC CHARACTERISTICS ANALYSIS OF KEY PARTS(STEEL WIRE ROPES)OF MOBILE ROLLER CARRIER CONVEYOR BASED ON ADAMS

作　　者：张东升 张猛[2] 倪雪 ZHANG DongSheng;ZHANG Meng;NI Xue(School of Construction Mechanical,Shandong Jiaotong University,Jinan 250357,China;School of Mechanical Engineering,Liaoning Engineering Technology University,Fuxin 123000,China)

机构地区：[1]山东交通学院工程机械学院,济南250357 [2]辽宁工程技术大学机械工程学院,阜新123000

出　　处：《机械强度》2020年第2期286-292,共7页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(51304102)资助。

摘　　要：以一种新型移动滚轮托架输送机结构为研究对象,通过对移动滚轮托架输送机运行理论分析,提出了对其起连接和牵拉作用的关键部件—钢丝绳运行稳定安全的要求。在Adams所建立虚拟样机模型的基础上,应用Adams/View的宏命令完成对连接滚轮托架的钢丝绳微元模型建模。通过对输送机运动系统进行动力学仿真,实现整机移动滚轮托架及钢丝绳完整运行一周。在此过程中重点对换向轮处相邻三段钢丝绳动态特性进行分析,得出钢丝绳位速度,位移变化曲线等,并得到钢丝绳微元间轴套力、钢丝绳与托架铰接力,钢丝绳与换向轮接触力等力学特性曲线。结果表明:因预紧装置的作用使钢丝绳运动趋势相同,但有微小偏差,且由于钢丝绳柔性体的振动,产生了Y轴、Z轴在平稳运输段的速度变化。在输送机换向处,钢丝绳与换向轮作用产生一定冲击作用,导致钢丝绳与轴套力、托架与钢丝绳铰接力合力产生较大变化,因此在输送机换向处需要注意采取措施,防止钢丝绳断裂。In this paper a new mobile wheel bracket conveyor structure as the research object,through theoretical analysis of mobile wheel bracket conveyor running,put forward the connection and pull role-key components of the wire rope running stable and safety requirements.On the basis of the virtual prototype model established by ADAMS,the macro model of ADAMS/View is used to model the wire rope micro model of the connecting roller bracket.Through the dynamic simulation of the conveyor’s motion system,the mobile roller bracket and the wire rope are fully run for one week.In this process,the dynamic characteristics of three adjacent sections of the wire rope at the commutator wheel are analyzed,and the speed of the wire rope position and the change curve of the displacement are obtained,and the mechanical characteristic curves of the shaft sleeve force between the wire rope,the wire rope and the bracket,the contact force of the wire rope and the reversing wheel are obtained.The results show that the movement trend of the wire rope is the same because of the effect of pre-tightening device,but there is a small deviation.And because of the vibration of the flexible body of the wire rope,the speed change of the Y axis and the Z axis in the stable transportation section is produced.In the transfer direction of the conveyor,the effect of the wire rope and the reversing wheel has a certain impact,resulting in a great change in the joint force of the wire rope and the sleeve force of the shaft,the bracket and the wire rope.Therefore,some measures should be taken to prevent the breaking of the wire rope at the transfer direction of the conveyor.

关 键 词：滚轮托架 钢丝绳 微元模型 轴套力 虚拟样机 动态特性 

分 类 号：TD528[矿业工程—矿山机电]