本文關(guān)鍵詞： 吊斗鏟 回轉(zhuǎn)裝置 動力學(xué)仿真 嚙合力 有限元分析　出處：《內(nèi)蒙古科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：吊斗鏟是屬于單斗挖掘機(jī)類的露天采礦設(shè)備，適合應(yīng)用于大型以及特大型礦山挖掘作業(yè)的重型裝備。吊斗鏟的回轉(zhuǎn)機(jī)構(gòu)是其重要組成部分，在吊斗鏟整個(gè)回轉(zhuǎn)過程中，回轉(zhuǎn)運(yùn)動時(shí)間占其吊斗鏟工作循環(huán)時(shí)間的60%以上�；剞D(zhuǎn)裝置的性能直接影響吊斗鏟的整機(jī)性能和露天礦的挖掘效率。因此，本文對吊斗鏟回轉(zhuǎn)裝置的研究具有重要意義。 本文首先介紹了吊斗鏟及其回轉(zhuǎn)裝置的結(jié)構(gòu)組成，工作原理，對其運(yùn)動特性和回轉(zhuǎn)過程中的受力狀況進(jìn)行了分析。用三維軟件SolidWorks建立了正常工況和故障狀態(tài)下的幾何模型，并把其分別導(dǎo)入到ADAMS軟件中，，在ADAMS環(huán)境下對吊斗鏟進(jìn)行了一系列的設(shè)置和加載，創(chuàng)建吊斗鏟回轉(zhuǎn)裝置的虛擬樣機(jī)模型。 在動力學(xué)軟件中對吊斗鏟回轉(zhuǎn)裝置進(jìn)行齒輪傳動的接觸分析，得到其回轉(zhuǎn)循環(huán)過程中齒輪嚙合力的變化狀況和齒輪圈的受力情況。對兩種情況下仿真出的變化曲線進(jìn)行了對比分析，得出在在故障工況時(shí)比正常工況時(shí)，齒輪嚙合力曲線圖波動變化變大，齒輪間的嚙合力較大，齒輪圈的受力也相對增大，同時(shí)回轉(zhuǎn)平臺也會沒有正常情況下平穩(wěn)。之后應(yīng)用有限元分析軟件對回轉(zhuǎn)立軸和回轉(zhuǎn)小齒輪進(jìn)行了靜強(qiáng)度分析校核，獲得其應(yīng)力和變形的情況，其強(qiáng)度滿足要求，并為此類部件的結(jié)構(gòu)設(shè)計(jì)提供參考。并在有限元軟件中對回轉(zhuǎn)立軸模態(tài)分析，得到其在齒輪嚙合時(shí)產(chǎn)生的激振力不會造成回轉(zhuǎn)立軸的共振情況，并從振型圖得到回轉(zhuǎn)立軸振動情況，其中下部靠近兩端花鍵處振動較大，可能會影響小齒輪嚙合平穩(wěn)性，應(yīng)予以重視。 我國還沒有設(shè)計(jì)生產(chǎn)出此類大型設(shè)備，對吊斗鏟的相關(guān)研究也不多，我國礦藏豐富，需求量大，所以市場對這種高效率的開采設(shè)備也有極大需求，未來我國也會設(shè)計(jì)制造此類設(shè)備。以上得出的結(jié)論，為吊斗鏟在實(shí)際使用和維護(hù)方面提供了參考，豐富了此類產(chǎn)品的研究資料，為我國未來設(shè)計(jì)和生產(chǎn)此類設(shè)備提供了些微幫助。
[Abstract]:Bucket shovel is a kind of open-pit mining equipment belonging to single bucket excavator, which is suitable for heavy equipment used in large and super large mining operations. The rotary mechanism of bucket shovel is an important part of it, and during the whole rotary process of bucket, The rotary motion time accounts for more than 60% of the working cycle time of the bucket shovel. The performance of the rotary device directly affects the whole performance of the bucket shovel and the mining efficiency of the opencast mine. Therefore, this paper is of great significance to the research of the rotary device of the bucket shovel. In this paper, the structure and working principle of the bucket shovel and its rotary device are introduced, and the kinematic characteristics and the stress condition in the process of rotation are analyzed. The geometric models under normal working condition and fault state are established by using the three-dimensional software SolidWorks. It was imported into ADAMS software, and a series of setting and loading of bucket shovel was carried out under ADAMS environment, and a virtual prototype model of bucket spatula rotary device was created. In the dynamic software, the contact analysis of the gear transmission is carried out on the rotary device of the bucket shovel. The change of the gear meshing force and the force of the gear ring during the rotary cycle are obtained. The simulation curves under the two conditions are compared and analyzed, and the results show that the change of the gear meshing force in the fault condition is more than that in the normal condition. The fluctuation of gear meshing force curve becomes larger, the meshing force between gears is larger, and the force of gear ring is relatively larger. At the same time, the rotating platform will not be stable under normal conditions. After that, the static strength analysis and checking of the rotating vertical shaft and the rotary pinion are carried out by using the finite element analysis software, and the stress and deformation of the rotating platform are obtained. The strength of the platform meets the requirements. It also provides a reference for the structural design of this kind of components. The modal analysis of the rotating vertical axis is carried out in the finite element software, and it is obtained that the excitation force generated by the gear meshing will not cause the resonance of the rotary shaft. The vibration of the rotating shaft is obtained from the vibration pattern, in which the vibration of the lower part near the two ends of splines is large, which may affect the meshing stability of the pinion gears, which should be paid more attention to. China has not yet designed and produced such large-scale equipment, and there is not much research on bucket shovels. Our country is rich in mineral deposits and in great demand. Therefore, the market also has a great demand for this kind of high-efficiency mining equipment. In the future, China will also design and manufacture this kind of equipment. The above conclusions provide a reference for the practical use and maintenance of the bucket shovel, and enrich the research data of this kind of products. It provides little help for the future design and production of this kind of equipment in our country.
【學(xué)位授予單位】：內(nèi)蒙古科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD422

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