新型滑移装载机动臂设计及其优化
发布时间：2018-11-22 08:11
【摘要】：近年来国际上小型工程机械发展迅猛,我国对装备制造业提出自主创新的要求,为小型工程机械的技术创新与结构优化提供了较好的契机。滑移装载机作为一种小型多功能工程机械,除了具有结构紧凑、体积小、重量轻等小型工程机械共同的优点,同时还具有全轮驱动、滑移转向、动作灵活、能够在工作现场快速挂接或者更换工作部件等优点。 本文按照整体功能模块划分、动臂结构设计、静力学分析与优化、运动仿真分析等步骤,进行新型滑移装载机动臂的设计研究。利用TRIZ理论和矩阵表,根据滑移装载机的结构特点和功能特性,创新性的对滑移装载机进行功能模块划分。调研国内外滑移装载机动臂的结构形式,对滑移装载机的动臂进行结构设计。参照大型滑移装载机的总体工作参数,计算动臂与车架各铰接点的位置和杆件尺寸,进行动臂的三维建模。 分析滑移装载机铲运工作的各种工况,确定滑移装载机的最大受力工况。计算最大受力工况下动臂的受力,比较受力计算结果,得到两种动臂结构受力最大值,进而进行静力学分析,得到相应的变形和应力图。比较两种结构的变形值和应力值,最终采用四连杆结构动臂,按照结构优化的步骤对动臂进行优化。仿真分析动臂的铲装运动,得到动臂的加速度等曲线,校验工作装置是否能够满足要求。 本课题研究基于产品特征设计方法,结合现代设计手段,利用三维软件与有限元分析软件的无缝接口,实现了动臂的结构优化,研发出性能更好的滑移装载机,同时实现了滑移装载机的模块划分,为加快滑移装载机的系列化进程提供了参考。
[Abstract]:In recent years, the rapid development of small scale construction machinery in the world, our country put forward the requirement of independent innovation to the equipment manufacturing industry, which provides a good opportunity for the technical innovation and structural optimization of small scale construction machinery. As a small multifunctional construction machinery, slippage loader has the common advantages of compact structure, small volume, light weight and so on, at the same time, it also has the advantages of full wheel drive, slip steering, flexible movement, etc. Ability to quickly hook up or replace working parts at work site. According to the steps of integral functional module division, structure design, static analysis and optimization, motion simulation analysis, the design of the new sliding loader arm is studied in this paper. Based on the TRIZ theory and matrix table, according to the structural and functional characteristics of the sliding loader, the functional modules of the sliding loader are divided creatively. This paper investigates the structure form of sliding loader arm at home and abroad, and designs the structure of sliding loader arm. According to the overall working parameters of the large sliding loader, the position of the hinge points of the arm and the frame and the size of the bar are calculated, and the three-dimensional modeling of the arm is carried out. The working conditions of slippage loader are analyzed, and the maximum load condition of slippage loader is determined. In this paper, the force of the arm under the maximum load condition is calculated, and the results of force calculation are compared, the maximum force of the two structures is obtained, and then the static analysis is carried out, and the corresponding deformation and stress diagram are obtained. The deformation value and stress value of the two structures are compared. Finally, the four-bar structure is used to optimize the manipulator according to the steps of structural optimization. The spade motion of the arm is simulated and the acceleration curve of the arm is obtained to verify whether the working device can meet the requirements. Based on the method of product feature design and modern design method, this paper uses the seamless interface between 3D software and finite element analysis software, realizes the structure optimization of the arm, and develops a sliding loader with better performance. At the same time, the module partition of slip loader is realized, which provides a reference for speeding up the serialization process of slip loader.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH243
本文编号：2348646
[Abstract]:In recent years, the rapid development of small scale construction machinery in the world, our country put forward the requirement of independent innovation to the equipment manufacturing industry, which provides a good opportunity for the technical innovation and structural optimization of small scale construction machinery. As a small multifunctional construction machinery, slippage loader has the common advantages of compact structure, small volume, light weight and so on, at the same time, it also has the advantages of full wheel drive, slip steering, flexible movement, etc. Ability to quickly hook up or replace working parts at work site. According to the steps of integral functional module division, structure design, static analysis and optimization, motion simulation analysis, the design of the new sliding loader arm is studied in this paper. Based on the TRIZ theory and matrix table, according to the structural and functional characteristics of the sliding loader, the functional modules of the sliding loader are divided creatively. This paper investigates the structure form of sliding loader arm at home and abroad, and designs the structure of sliding loader arm. According to the overall working parameters of the large sliding loader, the position of the hinge points of the arm and the frame and the size of the bar are calculated, and the three-dimensional modeling of the arm is carried out. The working conditions of slippage loader are analyzed, and the maximum load condition of slippage loader is determined. In this paper, the force of the arm under the maximum load condition is calculated, and the results of force calculation are compared, the maximum force of the two structures is obtained, and then the static analysis is carried out, and the corresponding deformation and stress diagram are obtained. The deformation value and stress value of the two structures are compared. Finally, the four-bar structure is used to optimize the manipulator according to the steps of structural optimization. The spade motion of the arm is simulated and the acceleration curve of the arm is obtained to verify whether the working device can meet the requirements. Based on the method of product feature design and modern design method, this paper uses the seamless interface between 3D software and finite element analysis software, realizes the structure optimization of the arm, and develops a sliding loader with better performance. At the same time, the module partition of slip loader is realized, which provides a reference for speeding up the serialization process of slip loader.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH243
【引证文献】
相关硕士学位论文 前1条
1 朱连双;微型挖掘机工作装置的有限寿命设计研究[D];山东大学;2013年
，本文编号：2348646
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