装载机工作装置反转六连杆机构运动学与动力学研究

发布时间：2018-05-01 20:56

本文选题：轮式装载机 + 工作装置　；参考：《吉林大学》2011年硕士论文

【摘要】：轮式装载机是一种用途非常广泛的工程机械,可以在复杂的工作环境下进行铲装、卸载、搬运、平整散装物料等作业,还可以轻度的铲掘岩石和硬土。此外,还可用铲斗平整凹凸不平的地面和对其他机械进行牵引作业。使用不同的工作装置,轮式装载机还可以进行推土、起重和装卸木料等工作。轮式装载机工作装置的传统设计方法有类比试凑作图法和基于平移性的作图法,但是这些方法很难达到设计要求,研发周期长,工作过于繁琐,采用虚拟样机技术对轮式装载机工作装置进行设计分析是非常必要的。本文主要介绍了轮式装载机的国内外发展现状及发展趋势,介绍了本课题所要研究的轮式装载机工作装置的结构组成及工作原理,对工作装置各组成构件进行了受力分析,并对工作装置进行了运动学的理论分析。用CATIA软件建立了轮式装载机工作装置的三维实体模型,并详细的介绍了CATIA与ADAMS的接口软件MSC SimDesigner。通过MSC SimDesigner软件,将CATIA模型导入ADAMS软件之中。并在MSC SimDesigner环境下,对工作装置模型添加运动副约束与运动约束。通过试验测定工作装置原地空载怠速工况、原地空载高速工况、原地满载怠速工况、原地满载高速工况、原地空载怠速转斗工况和原地空载高速转斗工况时液压系统的压力变化情况。在ADAMS环境下建立虚拟样机模型,对轮式装载机工作装置进行动力学与运动学仿真分析,得到工作装置的的工作性能曲线,分析轮式装载机工作装置各构件铰接点的受力情况,形成了可以对工作装置运动学与运动学进行分析与校核的软件系统。
[Abstract]:Wheel loader is a kind of widely used construction machinery, which can be used in complex working environment to carry out shovel, unloading, handling, leveling of bulk materials and so on, as well as slight shoveling of rock and hard soil. In addition, the bucket can also be used to smooth the uneven ground and other machinery for traction operations. Using different working devices, wheel loader can also be used to push earth, lift and load and unload wood. The traditional design methods of the working device of wheel loader include class comparison drawing method and drawing method based on translation, but these methods are very difficult to meet the design requirements, the research and development period is long, and the work is too tedious. It is necessary to design and analyze the working device of wheel loader by using virtual prototyping technology. This paper mainly introduces the present situation and development trend of wheel loader at home and abroad, introduces the structure and working principle of the working device of wheel loader, and analyzes the force of each component of the working device. The kinematics theory of the working device is analyzed. The 3D solid model of wheel loader working device is established by using CATIA software, and the interface software MSC Simdesigner between CATIA and ADAMS is introduced in detail. Through MSC SimDesigner software, the CATIA model is imported into ADAMS software. In the environment of MSC SimDesigner, the motion pair constraint and motion constraint are added to the working device model. By testing and measuring the idle condition, the high speed working condition, the idle speed condition, the full load idle condition, the full load idle working condition, the full load idle working condition, the full load idle working condition, the high speed working condition, The pressure variation of hydraulic system under the condition of idle bucket in situ and high speed in situ. The virtual prototype model is established under ADAMS environment, and the dynamics and kinematics simulation analysis of the working device of wheel loader is carried out, the working performance curve of the working device is obtained, and the force situation of the hinge points of each component of the working device of the wheel loader is analyzed. A software system which can analyze and check the kinematics and kinematics of the working device is formed.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH243

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