大吨位履带式强夯机双卷扬同步控制系统研究

发布时间：2018-04-18 00:29

本文选题：液压履带式强夯机 + 双卷扬　；参考：《长安大学》2015年硕士论文

【摘要】：液压履带式强夯机是在液压履带式起重机基础上衍生出来的新产品,适用于仓库、路基、机场及码头等地基加固处理的打夯施工作业。随着国家基础设施建设步伐的加快,强夯机作为夯击地基的主要设备而广泛受到用户的关注。目前,市场上大吨位强夯机存在有双卷扬液压提升和自由落钩下放过程的不同步问题,导致吊钩偏坠现象时有发生,而吊钩偏坠会对滑轮组的使用寿命和钢丝绳的磨损会造成很大影响,严重时甚至可能导致吊钩不能自由下放,影响工作效率等。针对以上问题,本文以某企业某型的液压履带式强夯机为研究对象,结合施工特点针对液压提升和自由落钩下放两个工序进行同步控制研究。根据强夯机液压提升系统的工作原理及特点,对原有强夯机液压提升系统进行了改进。并基于AMESim软件对双卷扬液压提升系统进行了建模仿真,仿真结果表明改进后液压提升系统的同步性有所改善,实现了预期目标;依据强夯机自由落钩下放的工作原理及特点,采用模糊PID控制策略对其下放过程进行同步控制,采用Matlab软件进行了建模仿真研究,并选择合适的控制器完成了软硬件的开发。研究结果表明:改进后的液压提升系统和采用模糊PID控制的下放系统使得双卷扬机构的同步性有了显著提升。目前,该方法已经应用于某型的强夯机上,实现了液压双卷扬的提升和下放的同步控制,在误差允许范围内满足双卷扬的同步运行要求。
[Abstract]:Hydraulic crawler dynamic compaction machine is a new product derived from hydraulic crawler crane, which is suitable for consolidation of warehouse, roadbed, airport and wharf.With the acceleration of national infrastructure construction, the dynamic compaction machine, as the main equipment of tamping foundation, has been widely concerned by users.At present, there are asynchronous problems in the process of double hoisting hydraulic lifting and free hook dropping on the large tonnage dynamic compaction machine, which leads to the phenomenon of hooks falling from time to time.The drop of hook will have a great effect on the service life of pulley group and the wear of wire rope. In serious cases the hook may not be freely lowered and the working efficiency will be affected.In view of the above problems, this paper takes a certain type of hydraulic crawler type dynamic rammer as the research object, combines the construction characteristic to carry on the synchronous control research to the hydraulic lifting and the free falling hook down two processes.According to the working principle and characteristics of the hydraulic lifting system of the dynamic rammer, the hydraulic lifting system of the original dynamic rammer is improved.The simulation results show that the synchronization of the improved hydraulic hoisting system has been improved and the expected goal has been achieved, according to the working principle and characteristics of the free hook drop down of the dynamic rammer, the simulation results show that the hydraulic lifting system is based on the AMESim software, and the simulation results show that the synchronization of the hydraulic lifting system has been improved and the expected goal has been achieved.The fuzzy PID control strategy is used to synchronize the process of decentralization, and the modeling and simulation research is carried out by using Matlab software, and the software and hardware are developed by selecting the appropriate controller.The results show that the improved hydraulic lifting system and the fuzzy PID control system make the synchronization of the double hoisting mechanism improved significantly.At present, this method has been applied to a certain type of dynamic rammer, which realizes the synchronous control of lifting and lowering of hydraulic double hoisting, and satisfies the requirements of synchronous operation of double hoisting within the range of error.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU67;TP273

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