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  本文關(guān)鍵詞：某型電動舵機減速器的研究設(shè)計　出處：《哈爾濱工業(yè)大學》2011年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 電動舵機減速器 行星齒輪傳動 精度分析 運動仿真 有限元

【摘要】：隨著航空事業(yè)的迅猛發(fā)展,無人駕駛飛機(UAV)的出現(xiàn)引起世界各國高度重視。其中,小型無人機因為在軍事應用和民用中具有獨特優(yōu)勢,已成為熱門研究領(lǐng)域。電動舵機是控制小型無人機的核心部件,其結(jié)構(gòu)小型化、輕型化和輸出大扭矩是小型無人機技術(shù)發(fā)展的重要趨勢之一。 本課題是要針對電動舵機在小型無人機上的應用特點研制一臺小體積、大速比、大扭矩、高精度、高效率和長壽命的配套減速裝置。本文通過傳動方案設(shè)計、結(jié)構(gòu)設(shè)計、精度分析、計算機仿真和繪制工程圖紙來完成這項設(shè)計工作。 傳動裝置的體積重量、減速比、效率、壽命和輸出扭矩這幾項參數(shù)要同時滿足前述的高要求往往比較困難。根據(jù)電動舵機減速器的要求對幾種擬采用的傳動型式進行速比和效率的分析,最后確定以第一級直齒錐齒輪傳動和第二級3K(II)型行星傳動的組合作為減速器的傳動方案。對傳動方案進行了設(shè)計,并通過VB編程對其傳動的參數(shù)進行計算。 因為電動舵機實質(zhì)上是一個位置伺服系統(tǒng),減速器的回差會直接影響整個系統(tǒng)的穩(wěn)定性和靈敏度。本文詳細分析了回差的來源,分別通過最大值法和統(tǒng)計概率方法定量的計算回差,了解各種誤差對傳動精度的影響程度,通過合理的精度分配更加有效地控制回差。 減速器的結(jié)構(gòu)設(shè)計包括材料的選擇、處理工藝和強度、剛度計算等。在結(jié)構(gòu)設(shè)計的基礎(chǔ)上,用Pro/E建立減速器的虛擬樣機,應用機構(gòu)仿真模塊對減速器進行干涉檢查和運動仿真。根據(jù)干涉檢查結(jié)果調(diào)整減速器的結(jié)構(gòu),通過運動仿真結(jié)果驗證結(jié)構(gòu)設(shè)計的正確性。用ANSYS軟件對減速器主要部件的強度和模態(tài)進行有限元分析,對行星傳動的各嚙合副進行靜力學有限元分析。根據(jù)仿真結(jié)果調(diào)整減速器的結(jié)構(gòu),使設(shè)計達到優(yōu)化。 最后基于上述內(nèi)容,確定減速器結(jié)構(gòu)的所有參數(shù),繪制減速器的全套工程圖紙,完成電動舵機減速器的設(shè)計。
[Abstract]:With the rapid development of aviation, the emergence of UAV (unmanned aerial vehicle) has attracted great attention in the world. Among them, small UAV has unique advantages in military applications and civilian applications. Electric steering gear is the core component of controlling small UAV, and its structure miniaturization, lightweight and output large torque is one of the important trends in the development of small UAV technology. This subject is to develop a small volume, large speed ratio, large torque, high precision, high efficiency and long life supporting deceleration device according to the application characteristics of electric steering gear in small UAV. Structural design, accuracy analysis, computer simulation and drawing of engineering drawings to complete this design. The volume, weight, deceleration ratio and efficiency of the transmission. The parameters of life and output torque are often difficult to meet the above-mentioned high requirements simultaneously. According to the requirements of the electric steering gear reducer, the speed ratio and efficiency of several proposed transmission types are analyzed. Finally, the combination of the first straight bevel gear drive and the second stage 3K / II planetary transmission is selected as the transmission scheme of the reducer. The transmission scheme is designed. The transmission parameters are calculated by VB programming. Because the electric steering gear is essentially a position servo system, the return difference of the reducer will directly affect the stability and sensitivity of the whole system. The origin of the return error is analyzed in detail in this paper. By using the maximum value method and the statistical probability method to calculate the return error quantitatively, the influence degree of various errors on the transmission accuracy is understood, and the return error is controlled more effectively by reasonable precision allocation. The structural design of the reducer includes material selection, processing technology and strength, stiffness calculation and so on. Based on the structural design, the virtual prototype of the reducer is built with Pro/E. The structure of the reducer is adjusted according to the results of the interference inspection by using the mechanism simulation module to carry on the interference inspection and the motion simulation to the reducer. The structural design is verified by the motion simulation results. The strength and modal of the main components of the reducer are analyzed by using ANSYS software. The static finite element analysis of the meshing pairs of planetary transmission is carried out, and the structure of the reducer is adjusted according to the simulation results to optimize the design. Finally, all the parameters of the reducer structure are determined, a complete set of engineering drawings of the reducer is drawn, and the design of the electric steering gear reducer is completed.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH132.46

【引證文獻】

相關(guān)博士學位論文 前1條

1 肖前進;諧波傳動式電動舵機多級滑�？刂萍胺蔷�性補償研究[D];中國科學院研究生院（長春光學精密機械與物理研究所）;2013年

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本文編號：1375619