【摘要】：液壓挖掘機(jī)是工程機(jī)械的一個(gè)重要機(jī)種,它的出現(xiàn)是工程領(lǐng)域的革命,它在減輕繁重的體力勞動(dòng),保證工程質(zhì)量,加快建設(shè)速度以及提高勞動(dòng)生產(chǎn)率方面起著十分重要的作用。挖掘機(jī)整機(jī)性能高低已成為影響工程施工進(jìn)度的關(guān)鍵,對(duì)工程施工有著重大影響。根據(jù)相關(guān)設(shè)計(jì)標(biāo)準(zhǔn)和行業(yè)的要求,對(duì)液壓挖掘機(jī)的整機(jī)進(jìn)行總體設(shè)計(jì)。確定了主要性能參數(shù),并對(duì)各主要技術(shù)參數(shù)進(jìn)行了計(jì)算和校核,使之達(dá)到設(shè)計(jì)要求。通過(guò)對(duì)挖裝機(jī)工作時(shí)典型工況的負(fù)載分析,確定挖掘機(jī)液壓系統(tǒng)主要相關(guān)參數(shù)的參數(shù)值,并以此為依據(jù),對(duì)液壓系統(tǒng)中包括主泵、行走馬達(dá)、回轉(zhuǎn)馬達(dá)等元件參數(shù)進(jìn)行設(shè)計(jì)計(jì)算,確定系統(tǒng)冷卻部分相關(guān)參數(shù)。根據(jù)國(guó)內(nèi)外相關(guān)學(xué)者對(duì)挖掘機(jī)挖裝力的分析研究,提出挖掘機(jī)各液壓缸理論挖裝力及整機(jī)理論挖裝力的定義及計(jì)算方法;闡述挖裝機(jī)進(jìn)行挖裝作業(yè)時(shí)的特殊工況,對(duì)挖掘機(jī)動(dòng)臂和斗桿進(jìn)行了強(qiáng)度計(jì)算。應(yīng)用SolidWorks三維建模軟件對(duì)反鏟工作機(jī)構(gòu)進(jìn)行實(shí)體建模,并導(dǎo)入SolidWorks Simulation中,進(jìn)行有限元結(jié)構(gòu)靜力分析,獲取其應(yīng)力應(yīng)變分布規(guī)律,為工作裝置優(yōu)化設(shè)計(jì)及結(jié)構(gòu)改進(jìn)提供了理論參考。本文對(duì)挖掘機(jī)整機(jī)及其工作裝置的研究方法和研究成果,對(duì)相關(guān)機(jī)型的設(shè)計(jì)改進(jìn)具有一定的指導(dǎo)意義。
[Abstract]:Hydraulic excavator is an important type of construction machinery. Its appearance is a revolution in engineering field. It plays a very important role in lightening heavy physical labor, ensuring engineering quality, speeding up construction speed and increasing labor productivity. The performance of excavator has become the key to the progress of engineering construction and has a significant impact on engineering construction. According to relevant design standards and industry requirements, the overall design of hydraulic excavator. The main performance parameters are determined, and the main technical parameters are calculated and checked to meet the design requirements. Based on the load analysis of typical working conditions of excavator, the main parameters of hydraulic system of excavator are determined. Based on this, the main pump and walking motor are included in hydraulic system. The parameters of the rotary motor and other components are designed and calculated to determine the relevant parameters of the cooling part of the system. According to the analysis and study of excavator's excavator loading force by relevant scholars at home and abroad, this paper puts forward the definition and calculation method of the excavator's theoretical excavating force and the whole machine's theoretical excavating force, and expounds the special working conditions of the excavator's excavating and loading operation. The strength of moving arm and bucket rod of excavator is calculated. The 3D modeling software of SolidWorks is used to model the backhoe working mechanism, and the static analysis of finite element structure is carried out in SolidWorks Simulation, and the stress and strain distribution law is obtained, which provides a theoretical reference for the optimization design and structural improvement of the working device. This paper has a certain guiding significance for the design and improvement of excavator's whole machine and its working device.
【學(xué)位授予單位】：河北科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU621

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相關(guān)期刊論文 前1條

1 何清華;張大慶;郝鵬;朱建新;;液壓挖掘機(jī)工作裝置模型及控制的試驗(yàn)研究[J];中南大學(xué)學(xué)報(bào)(自然科學(xué)版);2006年03期

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本文編號(hào)：2218442