本文選題：移動(dòng)式破碎站　切入點(diǎn)：履帶行走裝置　出處：《吉林大學(xué)》2015年碩士論文

【摘要】：本論文在國(guó)家高技術(shù)研究發(fā)展計(jì)劃（863計(jì)劃）項(xiàng)目“大型露天礦采礦技術(shù)與裝備”（No.2012AA062002）的資助下開(kāi)展研究。對(duì)移動(dòng)式破碎站履帶行走裝置進(jìn)行了研究，通過(guò)將履帶架柔性化的剛?cè)狁詈蟿?dòng)力學(xué)分析，得到了四種工況下履帶架動(dòng)態(tài)的位移云圖、應(yīng)力云圖和履帶行走裝置的驅(qū)動(dòng)轉(zhuǎn)矩，通過(guò)對(duì)云圖的分析，得出了各工況下的履帶架應(yīng)力較大的危險(xiǎn)區(qū)域；提出了標(biāo)準(zhǔn)化的履帶行走裝置驅(qū)動(dòng)輪、支重輪、履帶板和導(dǎo)向輪強(qiáng)度分析方法。 通過(guò)查閱國(guó)內(nèi)外相關(guān)文獻(xiàn)，闡述了履帶行走裝置國(guó)內(nèi)外研究現(xiàn)狀，，介紹了移動(dòng)式破碎站對(duì)提高礦產(chǎn)資源開(kāi)采效率的重要作用，對(duì)履帶行走裝置的研究方法進(jìn)行了總結(jié)和對(duì)比，分析了各研究方法的優(yōu)缺點(diǎn)，基于移動(dòng)式破碎站承載的復(fù)雜性，提出了用剛?cè)狁詈蟿?dòng)力學(xué)分析方法對(duì)其履帶行走裝置進(jìn)行分析。 理論計(jì)算得出了在平路直行和坡路直行工況下履帶行走裝置的驅(qū)動(dòng)轉(zhuǎn)矩并通過(guò)解析法計(jì)算了平衡梁和支重輪所受載荷情況，為下一步的分析提供支持。基于多體動(dòng)力學(xué)仿真軟件RecurDyn和有限元分析軟件ANSYS創(chuàng)建了以履帶架為柔性體的移動(dòng)式破碎站履帶行走裝置的剛?cè)狁詈蟿?dòng)力學(xué)模型，模擬平路直行、坡路直行、原地轉(zhuǎn)向和單邊制動(dòng)轉(zhuǎn)向四種運(yùn)行工況，得到了四種工況下履帶架動(dòng)態(tài)位移、應(yīng)力云圖和驅(qū)動(dòng)轉(zhuǎn)矩，分析并解釋結(jié)果產(chǎn)生的原因。 對(duì)失效會(huì)直接影響機(jī)器的正常運(yùn)行的部件——驅(qū)動(dòng)輪、支重輪、履帶板和導(dǎo)向輪進(jìn)行強(qiáng)度分析以驗(yàn)證其強(qiáng)度是否滿足要求。將關(guān)鍵部件的有限元分析步驟進(jìn)行總結(jié)，將其作為移動(dòng)式破碎站履帶行走裝置關(guān)鍵部件強(qiáng)度分析的標(biāo)準(zhǔn)化方法，為以后的設(shè)計(jì)和制造提供了參考。 所得結(jié)論表明，文中所用的剛?cè)狁詈蟿?dòng)力學(xué)分析方法和標(biāo)準(zhǔn)化的履帶行走裝置關(guān)鍵部件強(qiáng)度分析方法能夠得出所需的結(jié)果，可以為研究人員研究履帶行走裝置提供參考。
[Abstract]:In this paper, the research is carried out under the financial support of the National High Technology Research and Development Program No. 863) project, "Mining Technology and equipment for Large-scale Open-pit Mines" No. 2012AA062002.The mobile caterpillar walking device of crushing station is studied. By analyzing the flexible rigid-flexible coupling dynamics of the track frame, the dynamic displacement cloud map, stress cloud map and driving torque of the crawler moving device are obtained under four working conditions, and through the analysis of the cloud diagram, the dynamic displacement cloud diagram, the stress cloud map and the driving torque of the crawler walking device are obtained. In this paper, the dangerous areas where the stress of the crawler frame is large are obtained, and a standardized strength analysis method for the driving wheel, the supporting wheel, the track board and the guide wheel of the crawler walking device is put forward. By referring to relevant documents at home and abroad, this paper expounds the research status of crawler walking device at home and abroad, introduces the important role of mobile crushing station in improving the mining efficiency of mineral resources, and summarizes and compares the research methods of crawler walking device. The advantages and disadvantages of each research method are analyzed. Based on the complexity of load carrying of mobile crushing station, a rigid flexible coupling dynamic analysis method is proposed to analyze the crawler moving device. The driving torque of the crawler walking device under the conditions of horizontal and sloping road is calculated theoretically, and the load on the balance beam and the supporting wheel is calculated by analytical method. Based on the multi-body dynamics simulation software RecurDyn and the finite element analysis software ANSYS, the rigid-flexible coupling dynamic model of track walking device of mobile crushing station with crawler frame as flexible body is established, and the flat path is simulated. The dynamic displacement, stress cloud diagram and driving torque of the tracked frame are obtained under four operating conditions, such as straight slope, in-situ steering and single side braking steering, and the causes of the results are analyzed and explained. The strength analysis of driving wheel, supporting wheel, track board and guide wheel, which will directly affect the normal operation of the machine, is carried out to verify whether the strength meets the requirements. The finite element analysis steps of the key components are summarized. It is used as a standardized method for strength analysis of the key components of the crawler walking device in a mobile crushing station, which provides a reference for the design and manufacture in the future. The results show that the rigid-flexible coupling dynamic analysis method and the standardized strength analysis method of the key components of the crawler walking device can obtain the required results and can provide a reference for researchers to study the crawler walking device.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TD451

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