本文選題：伸縮臂 + 變幅鉸點(diǎn)�。� 參考：《西南交通大學(xué)》2012年碩士論文

【摘要】：本文主要針對如何在惡劣的隧道施工環(huán)境下架設(shè)混凝土濕噴機(jī)機(jī)械手伸縮臂噴射頭等作業(yè)工具來替代人工作業(yè)的問題。通過深入研究流動(dòng)式起重機(jī)和混凝土濕噴機(jī)機(jī)械手伸縮臂的工作特點(diǎn),綜合分析兩者,類比技術(shù)成熟的流動(dòng)式起重機(jī)伸縮臂技術(shù)后,提出了機(jī)械手伸縮臂總成的設(shè)計(jì)方案,并由此展開對機(jī)械手伸縮臂及其俯仰機(jī)構(gòu)系統(tǒng)優(yōu)化的研究。具體工作內(nèi)容如下： 首先,本文對國內(nèi)外的伸縮臂發(fā)展做了簡要介紹,展現(xiàn)了該濕噴機(jī)機(jī)械手采用伸縮臂結(jié)構(gòu)的前景。在系統(tǒng)分析流動(dòng)式起重機(jī)伸縮臂各款結(jié)構(gòu)的基礎(chǔ)上,提出了圓角矩形截面機(jī)械手伸縮臂的設(shè)計(jì)方案。 其次,通過研究濕噴機(jī)機(jī)械手伸縮臂的各種工作狀態(tài)和載荷情況,確定了該伸縮臂9種典型的工況。由類比流動(dòng)式起重機(jī)的傳統(tǒng)理論計(jì)算和驗(yàn)證校核方法,對該伸縮臂結(jié)構(gòu)進(jìn)行了詳細(xì)的設(shè)計(jì),包括了伸縮臂布置與連接方式、構(gòu)造尺寸以及變幅鉸點(diǎn)等關(guān)鍵參數(shù)。 考慮到采用傳統(tǒng)理論計(jì)算比較粗略,在對伸縮臂的剛度、強(qiáng)度和穩(wěn)定性的計(jì)算過程中簡化過多,影響了伸縮臂的計(jì)算精度；同時(shí)采用傳統(tǒng)理論方法難以得到伸縮臂全面的計(jì)算結(jié)果,特別是滑塊處的局部應(yīng)力,故本文在傳統(tǒng)理論計(jì)算的基礎(chǔ)上,采用目前比較成熟的ANSYS Workbench作為有限元分析工具對該伸縮臂進(jìn)行有限元分析。在ANSYS Workbench軟件中建立完整的伸縮臂分析模型,并通過接觸設(shè)置、網(wǎng)格劃分、加載、約束處理、求解以及后處理等一系列有限元分析步驟,完成對該伸縮臂的力學(xué)分析。 最后,通過ANSYS Workbench軟件自身的CAD、CAE和優(yōu)化模塊之間的無縫數(shù)據(jù)傳輸功能,利用結(jié)構(gòu)優(yōu)化設(shè)計(jì)理論對該伸縮臂進(jìn)行了深入地有限元結(jié)構(gòu)優(yōu)化研究。尋找影響該伸縮臂性能的關(guān)鍵因素,在伸縮臂輕量化研究方面取得一定的成效,為同類伸縮臂結(jié)構(gòu)的研發(fā)提供了參考。
[Abstract]:This paper mainly aims at the problem of how to set up the spraying head tool of the telescopic arm of the manipulator of the wet shotcrete machine in the harsh tunnel construction environment to replace the manual work. Based on the deep study of the working characteristics of the telescopic arm of the mobile crane and the concrete wet spray machine manipulator, the design scheme of the telescopic arm assembly of the manipulator is put forward after the comprehensive analysis of the two, and the analogy of the mature technology of the telescopic arm technology of the mobile crane. The optimization of the manipulator's telescopic arm and its pitching mechanism is studied. The details of the work are as follows: Firstly, the development of telescopic arm at home and abroad is briefly introduced, and the prospect of adopting telescopic arm structure for this wet jet manipulator is presented. Based on the systematic analysis of the structures of the telescopic boom of the mobile crane, the design scheme of the telescopic arm of the circular rectangular section manipulator is proposed. Secondly, nine typical working conditions of the telescopic arm of wet jet machine manipulator are determined by studying the various working states and load conditions of the telescopic arm. Based on the traditional theoretical calculation and verification method of the analogous mobile crane, the structure of the telescopic boom is designed in detail, including the key parameters such as the arrangement and connection of the telescopic boom, the construction size and the changing hinge point, etc. Considering the rough calculation of the traditional theory, the calculation accuracy of the telescopic arm is affected by the simplification of the stiffness, strength and stability of the telescopic arm. At the same time, it is difficult to obtain the overall calculation results of the telescopic arm, especially the local stress of the slider by using the traditional theoretical method, so this paper is based on the traditional theoretical calculation. The finite element analysis of the telescopic arm is carried out by using the mature ANSYS Workbench as the finite element analysis tool. A complete analysis model of telescopic arm is established in ANSYS Workbench software, and a series of finite element analysis steps such as contact setting, mesh division, loading, constraint processing, solution and post processing are used to complete the mechanical analysis of the telescopic arm. Finally, through the seamless data transmission function between the CADU CAE and the optimization module of ANSYS Workbench software, the structure optimization of the telescopic arm is studied by using the theory of structural optimization design. The key factors affecting the performance of the telescopic arm are found, and some achievements have been made in the research of the light weight of the telescopic arm, which provides a reference for the research and development of the similar telescopic arm structure.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH213.6

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 胡仕成;田明華;黃紅波;;基于Workbench的正面吊臂架多目標(biāo)優(yōu)化設(shè)計(jì)[J];徐州工程學(xué)院學(xué)報(bào)(自然科學(xué)版);2013年02期

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本文編號(hào)：1904966