發(fā)布時(shí)間：2018-01-03 21:18

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

  更多相關(guān)文章： 電動(dòng)舵機(jī)減速器 行星齒輪傳動(dòng) 精度分析 運(yùn)動(dòng)仿真 有限元

【摘要】：隨著航空事業(yè)的迅猛發(fā)展,無(wú)人駕駛飛機(jī)(UAV)的出現(xiàn)引起世界各國(guó)高度重視。其中,小型無(wú)人機(jī)因?yàn)樵谲娛聭?yīng)用和民用中具有獨(dú)特優(yōu)勢(shì),已成為熱門研究領(lǐng)域。電動(dòng)舵機(jī)是控制小型無(wú)人機(jī)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(wú)人機(jī)技術(shù)發(fā)展的重要趨勢(shì)之一。 本課題是要針對(duì)電動(dòng)舵機(jī)在小型無(wú)人機(jī)上的應(yīng)用特點(diǎn)研制一臺(tái)小體積、大速比、大扭矩、高精度、高效率和長(zhǎng)壽命的配套減速裝置。本文通過(guò)傳動(dòng)方案設(shè)計(jì)、結(jié)構(gòu)設(shè)計(jì)、精度分析、計(jì)算機(jī)仿真和繪制工程圖紙來(lái)完成這項(xiàng)設(shè)計(jì)工作。 傳動(dòng)裝置的體積重量、減速比、效率、壽命和輸出扭矩這幾項(xiàng)參數(shù)要同時(shí)滿足前述的高要求往往比較困難。根據(jù)電動(dòng)舵機(jī)減速器的要求對(duì)幾種擬采用的傳動(dòng)型式進(jìn)行速比和效率的分析,最后確定以第一級(jí)直齒錐齒輪傳動(dòng)和第二級(jí)3K(II)型行星傳動(dòng)的組合作為減速器的傳動(dòng)方案。對(duì)傳動(dòng)方案進(jìn)行了設(shè)計(jì),并通過(guò)VB編程對(duì)其傳動(dòng)的參數(shù)進(jìn)行計(jì)算。 因?yàn)殡妱?dòng)舵機(jī)實(shí)質(zhì)上是一個(gè)位置伺服系統(tǒng),減速器的回差會(huì)直接影響整個(gè)系統(tǒng)的穩(wěn)定性和靈敏度。本文詳細(xì)分析了回差的來(lái)源,分別通過(guò)最大值法和統(tǒng)計(jì)概率方法定量的計(jì)算回差,了解各種誤差對(duì)傳動(dòng)精度的影響程度,通過(guò)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(jì)包括材料的選擇、處理工藝和強(qiáng)度、剛度計(jì)算等。在結(jié)構(gòu)設(shè)計(jì)的基礎(chǔ)上,用Pro/E建立減速器的虛擬樣機(jī),應(yīng)用機(jī)構(gòu)仿真模塊對(duì)減速器進(jìn)行干涉檢查和運(yùn)動(dòng)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(guò)運(yùn)動(dòng)仿真結(jié)果驗(yàn)證結(jié)構(gòu)設(shè)計(jì)的正確性。用ANSYS軟件對(duì)減速器主要部件的強(qiáng)度和模態(tài)進(jìn)行有限元分析,對(duì)行星傳動(dòng)的各嚙合副進(jìn)行靜力學(xué)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(jì)達(dá)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(dòng)舵機(jī)減速器的設(shè)計(jì)。
[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(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH132.46

【引證文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 肖前進(jìn);諧波傳動(dòng)式電動(dòng)舵機(jī)多級(jí)滑�？刂萍胺蔷�性補(bǔ)償研究[D];中國(guó)科學(xué)院研究生院（長(zhǎng)春光學(xué)精密機(jī)械與物理研究所）;2013年

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本文編號(hào)：1375619