26t全液压轮胎压路机关键控制技术研究

发布时间：2019-01-01 09:32

【摘要】：轮胎压路机是一种主要依靠自重、通过特制充气轮胎对所需压实的铺层材料进行静力碾压的机械,可用于各种材料的基础层、次基础层、填方及沥青面层的压实。近年来,随着道路施工质量要求的不断提高,尤其是表层质量要求的提高,全液压轮胎压路机以其良好的面层压实性能得到了越来越广泛的关注和应用。轮胎压路机在作业过程中,如果未采取适当的控制措施,起步和停车的惯性负载会带来路面推移、拥包及压实不均匀等问题,严重影响了作业质量。因此对轮胎压路机关键控制技术进行研究,对提高整机性能及作业质量具有重要意义。本文主要对26t全液压轮胎压路机的关键控制技术进行了研究。在对机器工作原理及作业工况分析的基础上,提出了轮胎压路机控制系统的功能要求,确定了控制系统方案,完成了对控制器、操作手柄及显示器等元件的选型,并对输入输出信号进行了引脚分配;给出了行驶控制、极限载荷控制、惯性负载控制等关键技术的控制方法及控制流程;通过对惯性负载的组成及特性进行理论分析和计算,得出了轮胎压路机起步停车时峰值加速度(减速度)的大小,并根据工作经验,给出了整机作业时平均加速度(减速度)的大小;以AMESim和MATLAB/Simulink软件为仿真平台,建立了全液压轮胎压路机行驶电液系统的仿真模型,主要对机器起步过程进行了电液联合仿真,验证了论文中控制方法的有效性。
[Abstract]:The tire roller is a kind of machine which mainly depends on self-weight and compacts the required lamination material by special inflatable tire. It can be used for compaction of base layer, secondary foundation layer, fill and asphalt surface layer of all kinds of materials. In recent years, with the continuous improvement of road construction quality requirements, especially the improvement of surface quality requirements, full hydraulic tire roller with its good surface compaction performance has been paid more and more attention and application. If the tire roller does not take proper control measures, the inertia load of starting and stopping will bring problems such as road moving, packing and compaction unevenness, which seriously affect the operation quality. Therefore, the research on the key control technology of tire roller is of great significance to improve the performance and working quality of tire roller. In this paper, the key control technology of 26 t full-hydraulic tire roller is studied. Based on the analysis of the working principle and working conditions of the machine, the functional requirements of the control system of the tire roller are put forward, the control system scheme is determined, and the selection of the controller, the operating handle and the display is completed. The input and output signals are allocated with pins. The control methods and control flow of driving control, limit load control, inertial load control and other key technologies are given. Through the theoretical analysis and calculation of the composition and characteristics of the inertial load, the magnitude of the peak acceleration (deceleration) of the tire roller when it starts to stop is obtained, and according to the working experience, The average acceleration (deceleration) of the whole machine is given. Using AMESim and MATLAB/Simulink software as the simulation platform, the simulation model of the driving electro-hydraulic system of the hydraulic tyre roller is established. The electro-hydraulic joint simulation of the starting process of the machine is carried out, and the effectiveness of the control method in the paper is verified.
【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】：U415.521

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