轮胎压路机简支式后轮驱动装置结构设计（II）

　　轮胎压路机简支式后轮驱动装置结构设计（II）
　　摘要：本文对YL25C型轮胎压路机后轮驱动装置结构设计进行了阐述。在设计过程中，提出3种比较理想的结构方案，并对3种方案进行了详细的优缺点分析，最终选定了简支式结构方案。本文对液压马达、减速机、轴承等元件的选型也做了比较详细的计算，对轴的强度进行强度计算与校核、对轴承进行寿命计算分析。运用Pro/E对所有的0部件进行建模，建模完成后进行了干涉分析、运动仿真、结构装拆顺序动画的制作。还通过Pro/e的有限元分析对轴和机架焊接件进行了有限元分析，针对机架焊接件有限元分析结果，提出机架焊接件结构改进的方案。完成了主要0件的工程图绘制和加工工艺过程分析。
　　关键词：轮胎压路机 后轮驱动装置 结构设计 Pro/E建模 有限元分析
　　The Structural Design about the Simple Supported Rear Drive of Tyre Road Roller
　　Abstrct: The paper expatiates on the structural design about the rear drive device of tyre road roller. The paper puts forward three structures during the design work, then analyzes the advantages and disadvantages of them in detail, finally chooses a simple supported type structure to use in the design. The paper does much calculation work to choose the right model of the components, such as hydraulic motor, reducer and bearing. The paper checks the strength of the shaft and the service life of the bearing by calculation and analysis. All the parts and components of the device are modeled in using Pro/E. The paper analyzes the interference among parts and components, executes the mechanical motion emulation, and works out an animation about the assembled and unassembled process of the device after the modeling work. The paper uses finite element analysis function in the Pro/E to do finite element analysis work on shaft and supported framework, then makes a structural improvement about the supported framework by using the result of finite element analysis work. The paper also works out drawings and process planning of some major parts and components.
　　Keyword: tyre roller, the rear drive device, structural design, modeling in Pro/E, finite element analysis (FEA)
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