路面铣刨机铣刨系统分析与优化设计

发布时间：2018-06-28 15:50

本文选题：铣刨机 + 载荷波动　；参考：《长安大学》2014年硕士论文

【摘要】：现代路面养护方式中，经济性较好的作业方式就是先使用路面铣刨机铣削已损坏的路面，然后再铺设新的面层，因此路面铣刨机已成为现代路面养护机械的主要机种之一。铣刨机作为现代路面养护机械不可或缺的一部分，随着我国公路建设的快速发展其市场需求量也逐渐增大。然而，国内铣刨机的生产较晚，主要通过引进和参考国外铣刨机先进技术，，由于缺乏自主的试验和研究体系，特别是对铣刨机铣刨机理的研究不够，导致与国外产品仍存在较大的差距。为了降低铣刨机的生产成本，改善其作业性能，提高市场竞争力，对铣刨系统的研究有着重要的理论和现实意义。本文以国产某型号1m铣刨机为研究对象，对其铣刨系统进行了研究。主要研究内容包括：单把铣刀的受力分析；铣刨鼓整机的受力分析；通过MATLAB软件对铣刨鼓力学模型的仿真，研究了铣刨鼓几何参数和作业参数对铣刨鼓阻力矩的影响；通过对铣刀三维实体建模和ANSYS有限元分析，研究了铣刀作业过程中应力分布，为铣刀的受力分析和结构优化提供了理论依据。论文利用液压仿真软件AMESim建立了铣刨机铣刨液压系统模型，在验证模型正确后，对铣刨液压系统载荷的波动进行了仿真，并提出了合理选用蓄能器可有效吸收铣刨液压系统的压力波动。最后，论文针对铣刨鼓载荷波动及铣削比能耗问题，建立了铣刨鼓多目标优化设计的数学模型。通过优化使铣刨鼓的载荷波动明显降低，且铣削比能耗也明显降低，提高了铣刀的使用寿命及铣刨机的工作性能。
[Abstract]:In the modern pavement maintenance mode, the economical operation way is to use the pavement milling machine to milling the damaged road surface first, then lay the new surface layer, so the pavement milling machine has become one of the main kinds of the modern pavement maintenance machinery. As an indispensable part of modern pavement maintenance machinery, the market demand of milling planer is increasing with the rapid development of highway construction in China. However, the production of domestic milling machines is relatively late, mainly through the introduction and reference of advanced foreign milling machine technology, due to the lack of independent test and research system, especially the study of milling machine theory is not enough. As a result, there is still a big gap with foreign products. In order to reduce the production cost of milling machine, improve its performance and improve the market competitiveness, the research on milling and planing system has important theoretical and practical significance. In this paper, a 1 m milling machine made in China is taken as the research object, and its milling and planing system is studied. The main research contents are as follows: the mechanical analysis of single milling cutter, the mechanical analysis of milling drum, the simulation of milling drum mechanics model by MATLAB software, the influence of milling drum geometry parameter and operation parameter on the milling drum resistance moment; Through 3D solid modeling and ANSYS finite element analysis, the stress distribution of milling cutter is studied, which provides a theoretical basis for the mechanical analysis and structural optimization of milling cutter. The hydraulic system model of milling planing machine is established by using hydraulic simulation software AMESim. After verifying the model, the load fluctuation of milling planing hydraulic system is simulated. The reasonable selection of accumulator can effectively absorb the pressure fluctuation of milling and planing hydraulic system. Finally, aiming at the load fluctuation of milling drum and milling specific energy consumption, the mathematical model of multi-objective optimization design of milling drum is established. The load fluctuation of the milling drum and the specific energy consumption of the milling machine are obviously reduced by optimization, which improves the service life of the milling cutter and the working performance of the milling planer.
【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

【参考文献】