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设计题目：基于

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Pro/E的液压挖掘机三维建模与运动仿真 系 部： ****** 专 业： ****** 班 级： ****** 学生姓名： ****** 学 号： ****** 指导教师： ******

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摘 要

工作装置是液压挖掘机的重要组成部分，为研究工作装置在挖掘机整个作业循环时间里的运动情况，运用Pro/E软件的运动仿真模块对挖掘机工作装置进行运动仿真。采用传统的运动分析方法存在工作量大、不精确和不直观等缺点。利用Pro/E对液压挖掘机反铲工作装置进行建模和装配,首先分析了挖掘机的运动过程和各工况位置,然后用Pro/ E中的Mechanism模块进行了机构运动学仿真,通过对挖掘机各连接轴的设置,找到挖掘机动臂、斗杆和铲斗的各极限位置，以及确定各部件的运动关系和时间安排。结果表明该方法简单、可靠、为挖掘机整机设计及性能评估提供一定的理论依据。

关键字：液压挖掘机；Pro/E；运动仿真

ABSTRACT

The work device is an important part of a hydraulic excavator.To start the motion process of hydraulic excavator work device in the whole operation cycle time, Pro/E sofortware is used to simulat. The traditional design methods to draw the envelope diagram have many shortcomings, such as the heavy workload,imprecision and less intuition. Pro/ E software was used to model and assemble for backhoe working equipment of the hydraulic excavator. Above all , the excavator movement process and work conditions were analyzed. Then mechanism kinematics simulation was carried on by Mechanism module in the Pro/ E software. The limit positionsof movable arm, bucket arm and bucket were found through setting joint shafts of the excavator.

Keywords：excavator；Pro/E；dynamic simulation

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目 录

摘要..............................................................................................................................Ⅰ 第1章 绪论.................................................................................................................1 1.1液压挖掘机在工程应用中的重要性....................................................................1 1.2液压挖掘机的简介................................................................................................1 1.2.1 液压挖掘机的组成...................................................................................2 1.2.2 液压挖掘机的工作循环过程...................................................................3 1.3 Pro/E软件的介绍................................................................................................3 第2章 基于Pro/E的挖掘机参数化建模.................................................................5 2.1动臂的建模............................................................................................................5 2.2 斗杆的建模...........................................................................................................7 2.3 挖斗的建模...........................................................................................................8 2.4 驾驶舱的建模......................................................................................................10 2.5动臂液压元件.......................................................................................................12 2.6挖斗液压元件.......................................................................................................13 2.7连接片的建模.......................................................................................................14 第3章 液压挖掘机的装配设计................................................................................16 3.1 装配概述..............................................................................................................16 3.2 机座的装配..........................................................................................................17 3.3 机身的装配..........................................................................................................18 3.4 动臂液压元件的装配..........................................................................................19 3.5 斗杆液压元件的装配..........................................................................................20 3.6挖斗液压元件的装配...........................................................................................21 3.7挖掘机的总体装配...............................................................................................21 第4章 液压挖掘机的运动仿真模拟........................................................................23 总结..............................................................................................................................27 致谢..............................................................................................................................28 参考文献......................................................................................................................29