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電動擰緊工具可靠性與結(jié)構(gòu)優(yōu)化研究

發(fā)布時間:2018-10-30 19:05
【摘要】:在工業(yè)4.0智能制造時代,電動擰緊工具由于其數(shù)據(jù)可追溯性和易于網(wǎng)絡(luò)通訊管理的特點,正在逐步替代氣動擰緊工具,被廣泛用于工業(yè)生產(chǎn)中,特別是在汽車制造和航空航天制造裝配工藝中的螺栓螺母精確擰緊場合。目前國內(nèi)普遍使用的電動擰緊工具大多數(shù)是歐美品牌,成本較高且維護(hù)保養(yǎng)費用昂貴。為了降低電動擰緊工具的制造使用成本,提高產(chǎn)品的可靠性和促進(jìn)該產(chǎn)品的國產(chǎn)化進(jìn)程,需要對電動擰緊工具進(jìn)行可靠性設(shè)計研究,提出可行的優(yōu)化設(shè)計方案。本課題的研究,對于提高國內(nèi)電動擰緊工具產(chǎn)品的整體競爭力和技術(shù)水平,降低制造使用成本,將具有十分重要的科學(xué)研究意義和社會應(yīng)用價值。本課題采用多軟件協(xié)同動力學(xué)仿真和有限元分析的方法,對電動擰緊工具中的三個重要部件即伺服電機(jī)、傳感器和行星齒輪組進(jìn)行了研究,重點是針對行星齒輪組進(jìn)行優(yōu)化分析。研究中采用SolidWorks軟件三維建模,建立了典型電動擰緊工具的行星齒輪傳動系統(tǒng)模型;趧恿W(xué)分析軟件ADAMS,對行星齒輪組運行工況進(jìn)行了動力學(xué)仿真計算,模擬了電動擰緊工具的行星齒輪系統(tǒng)在工作時的狀態(tài),特別是對太陽輪和行星輪之間的受力情況進(jìn)行了較深入的分析。并通過將仿真數(shù)值結(jié)果和理論計算值相對比,判斷建立的整個虛擬樣機(jī)系統(tǒng)是否可靠。在對于行星齒輪組的應(yīng)力分析中,采用ANSYS workbench軟件,對行星輪和太陽輪的嚙合狀態(tài),行星架和整個行星齒輪系統(tǒng)的工況進(jìn)行了有限元仿真計算和靜力學(xué)分析,校核各個部件的可靠性;贏DAMS和ANSYS workbench對微型行星齒輪系統(tǒng)進(jìn)行動力學(xué)和有限元協(xié)同分析的方法,可以有效提高電動擰緊工具研發(fā)和測試的效率,節(jié)省原型樣機(jī)的測試成本,為電動擰緊工具新產(chǎn)品的研發(fā)提供實用可靠的技術(shù)評估與解決方案。
[Abstract]:In the age of industrial 4.0 intelligent manufacturing, electric tightening tools, due to their data traceability and ease of network communication management, are gradually replacing pneumatic tightening tools and are widely used in industrial production, Especially in the automobile manufacturing and aerospace manufacturing assembly process in the precise tightening of bolts and nuts. At present, most of the electric tightening tools used in China are European and American brands, high cost and expensive maintenance. In order to reduce the manufacturing cost of electric tightening tools, improve the reliability of the products and promote the process of localization, it is necessary to study the reliability design of the electric tightening tools and put forward a feasible optimal design scheme. The research of this subject will have very important scientific research significance and social application value for improving the overall competitiveness and technical level of domestic electric tightening tool products and reducing the cost of manufacture and use. In this paper, three important parts of electric tightening tool, servo motor, sensor and planetary gear group, are studied by means of multi-software collaborative dynamics simulation and finite element analysis. The emphasis is on the optimization analysis of planetary gear sets. The model of planetary gear transmission system of typical electric tightening tool is established by using SolidWorks software. Based on the dynamic analysis software ADAMS, the dynamic simulation of the planetary gear group operating condition is carried out, and the state of the planetary gear system with the electric tightening tool is simulated. In particular, the stress between the solar and planetary gears is analyzed in depth. The simulation results are compared with the theoretical results to determine the reliability of the whole virtual prototype system. In the stress analysis of planetary gear group, the finite element simulation and static analysis of the meshing state of planetary gear and solar wheel, the working condition of planetary frame and the whole planetary gear system are carried out by using ANSYS workbench software. Check the reliability of each component. Based on ADAMS and ANSYS workbench, the dynamic and finite element collaborative analysis of the micro planetary gear system can effectively improve the efficiency of the development and testing of the electric tightening tools, and save the testing cost of the prototype. To provide practical and reliable technical evaluation and solution for the development of new products of electric tightening tools.
【學(xué)位授予單位】:華東理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TS914.5

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