快速底盘圆形坑槽铣刨车铣刨装置设计及负载理论研究

发布时间：2018-04-30 10:58

本文选题：圆形坑槽铣刨设备 + 铣刨装置　；参考：《长安大学》2014年硕士论文

【摘要】：城市化的进程越来越快，市政道路和高速公路的建设逐年增加，在我国公路事业迅猛发展的同时，也面临一个关于如何快速高效地对已损坏路面进行养护的问题。沥青路面的小面积损坏即坑槽是城市道路和高速公路的主要病害之一，直接影响到交通的舒适性与安全性；而坑槽修补作业也是沥青路面经常性养护的主要作业种类之一，坑槽修补的质量和寿命决定路面的运营质量以及路面养护的总体效益。根据最新研究成果，在相同条件下，圆形坑槽修补质量大大优于方形坑槽。因此，研发一种圆形坑槽铣刨机是实现圆形坑槽修补的先决条件，满足高速公路和市政道路的小面积破损路面的修补，，以较低的成本实现较大的收益，具有重要的现实意义和良好的社会效益。本文以宋永刚教授的发明专利《沥青路面圆形坑槽铣刨设备》为研究基础，通过分析和借鉴现有铣刨装置的结构和功能原理，设计出了合理的可以开挖圆形坑槽的铣刨设备的铣刨装置，对其主要结构组成和工作原理进行了诠释。本文重点讨论了该铣刨装置的铣刨芯轴旋转结构和三级铣刨刀盘组合结构及其有关这两个结构的重要参数，并给出了其相关参数的校验过程；讨论了三级铣刨刀盘的设计和各级刀盘上刀具的布置形式，分别给出了主刀和边刀各主要角度参数以及安装角，并从刀具的磨损、选择和使用等方面进行了分析；建立了铣刨刀头及其切削路面过程的实体模型，并通过有限元分析软件ANSYS Workbench，设定不同的刀盘转速和进给速度，对铣刨刀头切削路面过程进行了显式动力学仿真，对其仿真结果进行了分析讨论；讨论了沥青路面在常温下的破坏机理，对铣刨刀具的铣削阻力进行了理论计算探析，给出了铣刨芯轴液压驱动马达的工作负载计算式。本文的研究工作为圆形坑槽铣刨装置的研发提供了一种设计参考，并给出了完整的机构设计理论和计算方法，对圆形坑槽铣刨装置的进一步功能完善和性能优化有一定的参考价值。
[Abstract]:The process of urbanization is getting faster and faster, and the construction of municipal roads and highways is increasing year by year. With the rapid development of highway in China, it is also facing a problem of how to maintain the damaged road surface quickly and efficiently. The small area damage of asphalt pavement, namely pothole, is one of the main diseases of urban road and highway, which directly affects the comfort and safety of traffic, and pothole repair is one of the main types of maintenance of asphalt pavement. The quality and life of pothole repair determine the operation quality of pavement and the overall benefit of pavement maintenance. According to the latest research results, the repair quality of circular potholes is much better than that of square potholes under the same conditions. Therefore, the research and development of a circular pit milling machine is a prerequisite to achieve circular pit repair, to meet the repair of small areas of damaged road surface of highway and municipal roads, and to achieve greater benefits at lower cost. It has important practical significance and good social benefit. Based on Professor Song Yonggang's invention patent "Asphalt pavement Circular Pit Milling and planing equipment", this paper analyzes and draws lessons from the structure and functional principle of the existing milling and planing device. A reasonable milling and planing device which can excavate circular pits is designed, and its main structure and working principle are explained. In this paper, the rotating structure of the milling core shaft and the combined structure of the three-stage milling planer and the important parameters related to the two structures are discussed in detail, and the calibration process of the related parameters is given. This paper discusses the design of the three-stage milling planer and the layout of the cutter on the cutter head, and gives the main angle parameters and the installation angle of the main knife and the edge cutter, and analyzes the wear, selection and use of the tool. The solid model of milling planer head and its cutting road surface process is established. Through the finite element analysis software ANSYS Workbench, different rotating speed and feed speed of cutter head are set up, and the explicit dynamic simulation of milling planer head cutting process is carried out. The simulation results are analyzed and discussed, the failure mechanism of asphalt pavement at room temperature is discussed, the milling resistance of milling cutter is analyzed theoretically, and the working load calculation formula of hydraulic motor driven by milling core shaft is given. The research work in this paper provides a design reference for the research and development of circular pit milling planer, and gives a complete mechanism design theory and calculation method. It has certain reference value for the further function improvement and performance optimization of circular pit milling and planing device.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U418.3

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