【摘要】：近年來國際上小型工程機械發(fā)展迅猛,我國對裝備制造業(yè)提出自主創(chuàng)新的要求,為小型工程機械的技術(shù)創(chuàng)新與結(jié)構(gòu)優(yōu)化提供了較好的契機�；蒲b載機作為一種小型多功能工程機械,除了具有結(jié)構(gòu)緊湊、體積小、重量輕等小型工程機械共同的優(yōu)點,同時還具有全輪驅(qū)動、滑移轉(zhuǎn)向、動作靈活、能夠在工作現(xiàn)場快速掛接或者更換工作部件等優(yōu)點。 本文按照整體功能模塊劃分、動臂結(jié)構(gòu)設(shè)計、靜力學(xué)分析與優(yōu)化、運動仿真分析等步驟,進(jìn)行新型滑移裝載機動臂的設(shè)計研究。利用TRIZ理論和矩陣表,根據(jù)滑移裝載機的結(jié)構(gòu)特點和功能特性,創(chuàng)新性的對滑移裝載機進(jìn)行功能模塊劃分。調(diào)研國內(nèi)外滑移裝載機動臂的結(jié)構(gòu)形式,對滑移裝載機的動臂進(jìn)行結(jié)構(gòu)設(shè)計。參照大型滑移裝載機的總體工作參數(shù),計算動臂與車架各鉸接點的位置和桿件尺寸,進(jìn)行動臂的三維建模。 分析滑移裝載機鏟運工作的各種工況,確定滑移裝載機的最大受力工況。計算最大受力工況下動臂的受力,比較受力計算結(jié)果,得到兩種動臂結(jié)構(gòu)受力最大值,進(jìn)而進(jìn)行靜力學(xué)分析,得到相應(yīng)的變形和應(yīng)力圖。比較兩種結(jié)構(gòu)的變形值和應(yīng)力值,最終采用四連桿結(jié)構(gòu)動臂,按照結(jié)構(gòu)優(yōu)化的步驟對動臂進(jìn)行優(yōu)化。仿真分析動臂的鏟裝運動,得到動臂的加速度等曲線,校驗工作裝置是否能夠滿足要求。 本課題研究基于產(chǎn)品特征設(shè)計方法,結(jié)合現(xiàn)代設(shè)計手段,利用三維軟件與有限元分析軟件的無縫接口,實現(xiàn)了動臂的結(jié)構(gòu)優(yōu)化,研發(fā)出性能更好的滑移裝載機,同時實現(xiàn)了滑移裝載機的模塊劃分,為加快滑移裝載機的系列化進(jìn)程提供了參考。
[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.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH243

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 朱連雙;微型挖掘機工作裝置的有限壽命設(shè)計研究[D];山東大學(xué);2013年

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本文編號：2348646