【作者】 何伟；

【导师】 任光胜；

【作者基本信息】 重庆大学 ， 机械制造及其自动化， 2018， 硕士

【摘要】 地铁作为最主要的城市轨道交通模式,已经成为了市民出行方式的首要选择,也是解决城市交通拥堵的重要手段。作为地铁车辆的核心部件,转向架性能关系到整个车辆的运行安全性与乘坐舒适性,在其拆解、检修维护、重新组装后需要进行综合性能试验,试验合格后才能装车运行。地铁转向架试验台属于非标设备,由于现有试验台研发时间较早,研发人员经验不足以及缺少行业标准规范指导,在实际使用过程中暴露出了一些问题,主要体现在机械结构缺陷和试验功能欠缺两个方面。本文针对这两类问题,分析了其产生的主要原因并在此基础上进行了优化设计。机械结构方面,针对支撑升降平台升降过程中存在卡顿现象,通过ANSYS Workbench软件对支撑升降平台进行有限元仿真分析,找出了在其升降过程中出现卡顿现象的原因。在不对现有试验平台结构进行大幅改动的前提下,对支撑升降平台主体框架结构和导向柱、套筒进行了优化设计。针对驱动轮轴距调整机构滑动支座移动困难现象,通过问题原因分析和车轮与驱动轮间所需压紧力的计算,重新设计了试验台驱动轮轴距调整机构以及相应的气压回路。试验功能方面,新设计了空气弹簧气密性试验功能和动力转向架主动跑合试验功能。根据空气弹簧气密性试验技术要求设计了龙门架结构、气压回路以及液压回路,并对龙门架结构强度、刚度进行了检验。通过对牵引电机空载电流的估算,重新选择了变频器功率,并对变频器BICO技术进行了研究与应用,设计了试验台驱动电机与转向架牵引电机的控制方式。最后,优化了部分数据测量采集方式,对优化后的试验台电控系统进行了梳理,重新编写了PLC控制程序。利用VB编程语言编写了OPC客户端软件应用程序,并对上位机客户端界面进行了重新设计。更多还原

【Abstract】 As the most important mode of urban rail transit,the subway has become the first choice for people to travel and is also an important means to solve urban traffic congestion.As the core component of the metro vehicle,the performance of the bogie is related to the safety and ride comfort of the whole vehicle.It needs comprehensive performance test after its disassembly,maintenance and reassembly.After the test is qualified,the vehicle can be loaded and run.The subway bogie test-bed is a non standard equipment.Due to the early research and development time of the test bench,the lack of experience of the R &D personnel and the lack of industry standard specification guidance,some problems have been exposed in the actual use process,mainly in two aspects: the defects of mechanical structure and the lack of test function.Aiming at these two problems,this paper analyzes the main causes of the above problems and optimizes the design on this basis.In the mechanical structure,in view of the existence of the carton phenomenon in the process of lifting and lifting platform,the ANSYS Workbench software is used to analyze the support lifting platform by finite element simulation,and the reasons for the emergence of the carton phenomenon in the process of lifting and lifting are found.Under the premise that the structure of the existing test platform is greatly changed,the main frame structure and the guide column and sleeve of the lifting platform are optimized.In view of the difficult movement of the sliding bearing of the driving wheel wheelbase adjustment mechanism,through the analysis of the cause of the problem and the calculation of the pressing force between the wheel and the driving wheel,the adjustment mechanism of the driving wheel wheelbase of the test rig and the corresponding pressure loop are redesigned.In terms of test function,the test function of air spring tightness test and the active running test function of the power bogie are newly designed.According to the air spring air tightness test technology,the structure of Longmen frame,the pressure loop and the hydraulic circuit are designed,and the strength and stiffness of the structure of the Longmen frame are tested.Through the estimation of the no-load current of the traction motor,the power of the inverter is re chosen,and the BICO technology of the inverter is studied and applied,and the control mode of the driving motor of the test bench and the traction motor of the bogie is designed.Finally,some data acquisition methods are optimized,and the optimized electronic control system of the test-bed is combed,and the PLC control program is rewritten.The OPC client software application program is written in VB programming language,and the client interface of the host computer is redesigned.更多还原