本文關鍵詞： 高枝鋸 機構運動學仿真 結構優(yōu)化 線彈性靜力學分析 虛擬樣機　出處：《江蘇大學》2017年碩士論文　論文類型：學位論文

【摘要】：高位樹枝修枝鋸是園林綠化的常用工具之一,隨著對城市綠化要求的不斷提高,傳統(tǒng)的高枝油鋸已不能滿足修剪高位樹枝的要求,因此設計一款體積小、重量輕、噪音小、耗能低、攜帶輕便的電動高枝鋸是十分必要的。本文針對這一現(xiàn)狀,對高枝鋸機構設計及關鍵部件優(yōu)化等問題進行研究,主要的研究內容如下:(1)首先通過對高枝鋸國內外研究現(xiàn)狀的分析,結合企業(yè)委托設計目標,指出了研究的目的及意義,并提出了高枝鋸產(chǎn)品的設計方法,規(guī)范同類產(chǎn)品的設計流程。(2)通過對傳統(tǒng)高枝鋸實際工況的分析,提出了新型高枝鋸的基本設計要求;根據(jù)對所給方案的動力學仿真結果確定了最優(yōu)機構設計目標,并利用參數(shù)化設計方法對最優(yōu)方案進行了參數(shù)化定型。(3)根據(jù)高枝鋸工況提出了高枝鋸鋸片的設計要求和設計目標,通過對鋸片進行線彈性靜力學分析,為后續(xù)的鋸片結構優(yōu)化和穩(wěn)定性分析奠定了力學基礎。(4)通過建立高枝鋸整機裝配有限元模型,并對其整個機構進行線彈性靜力學仿真,利用分析結果對高枝鋸的結構性能進行了優(yōu)化。(5)利用虛擬樣機設計技術,構建了高枝鋸鋸割樹枝工況的虛擬樣機,提出了高枝鋸虛擬樣機性能的評測指標,對本文所設計的高枝鋸工作性能進行評價,并設計了高枝鋸性能測試的實驗方案,為產(chǎn)品生產(chǎn)和測試的可行性提供了依據(jù)。
[Abstract]:High branch pruning saw is one of the common tools for garden greening. With the increasing requirement of urban greening, the traditional high branch saw can not meet the requirements of pruning high branches, so the design of a small size. It is necessary to carry a portable electric high branch saw with light weight, low noise, low energy consumption. In this paper, the mechanism design and key components optimization of high branch saw are studied. The main research contents are as follows: (1) first of all, through the analysis of domestic and international research status of high branch saw, combined with the design goal of enterprise entrustment, the purpose and significance of the research are pointed out, and the design method of high branch saw product is put forward. Based on the analysis of the actual working conditions of the traditional high branch saw, the basic design requirements of the new type high branch saw are put forward. According to the dynamic simulation results of the given scheme, the optimal design goal of the mechanism is determined. The design requirements and design objectives of the high branch saw blade are put forward according to the working conditions of the high branch saw, and the linear elastic static analysis of the saw blade is carried out by means of the linear elastic static analysis of the saw blade. For the subsequent optimization of saw blade structure and stability analysis laid a mechanical foundation. Through the establishment of a high branch saw machine assembly finite element model, and the entire mechanism of linear elastic static simulation. The structure and performance of high branch saw were optimized by using the analysis results. The virtual prototype of cutting branch of high branch saw was constructed by using virtual prototype design technology. The performance evaluation index of the virtual prototype of high branch saw is put forward, the working performance of the high branch saw designed in this paper is evaluated, and the experimental scheme of testing the performance of the high branch saw is designed. It provides the basis for the feasibility of product production and test.
【學位授予單位】：江蘇大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU986.32

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