本文選題：行星減速器 + 摩擦生熱��； 參考：《南京航空航天大學(xué)》2011年碩士論文

【摘要】：行星減速器采用動(dòng)軸線傳動(dòng),合理應(yīng)用內(nèi)、外嚙合,多個(gè)行星輪同時(shí)承受載荷,因此與普通齒輪減速器相比,在傳動(dòng)性能上具有較大優(yōu)勢(shì),在很多場(chǎng)合被用來(lái)代替定軸減速器作為增速、減速等裝置。然而,由于行星減速器結(jié)構(gòu)緊湊,散熱面積小,因此其傳動(dòng)的可靠性和效率會(huì)受到較大影響,所以,研究行星減速器工作過(guò)程中的溫度場(chǎng)分布及變化在其傳動(dòng)設(shè)計(jì)中越來(lái)越重要。 本論文主要完成以下幾個(gè)方面的工作:對(duì)行星減速器中齒輪、軸承的相對(duì)運(yùn)動(dòng)及受力情況進(jìn)行詳細(xì)分析,給出各齒輪嚙合點(diǎn)所受到的載荷及運(yùn)動(dòng)速度的計(jì)算公式,同時(shí)給出滾動(dòng)軸承滾動(dòng)體的接觸載荷及滾動(dòng)體與套圈的相對(duì)運(yùn)動(dòng)速度,用作研究減速器內(nèi)熱源分析的基礎(chǔ);通過(guò)對(duì)行星減速器內(nèi)摩擦副的研究,根據(jù)摩擦功率損失原理建立摩擦副熱源的熱流功率模型,比較各方法的優(yōu)劣性,確定各自的適用場(chǎng)合。建立高速旋轉(zhuǎn)零件的風(fēng)阻損失模型、攪油損失模型及聯(lián)軸器的生熱模型;根據(jù)傳熱學(xué)原理建立零件表面對(duì)流換熱系數(shù)的計(jì)算模型,包括齒輪表面和油氣混合物的對(duì)流換熱系數(shù),軸承內(nèi)外圈及滾動(dòng)體與潤(rùn)滑油或油氣混合物的對(duì)流換熱系數(shù)等;在此基礎(chǔ)上,分析行星減速器內(nèi)部零件之間的傳熱關(guān)系,建立減速器系統(tǒng)熱流傳遞的網(wǎng)絡(luò)模型,并用MATLAB語(yǔ)言編制交互式程序界面以及熱網(wǎng)絡(luò)求解程序,給出減速器穩(wěn)態(tài)以及瞬態(tài)溫度的分布變化規(guī)律;搭建行星減速器傳動(dòng)平臺(tái),通過(guò)對(duì)減速器實(shí)際工作中的溫度數(shù)據(jù)采集實(shí)驗(yàn),測(cè)量關(guān)鍵節(jié)點(diǎn)的溫度,經(jīng)與計(jì)算結(jié)果比較,發(fā)現(xiàn)兩者結(jié)果一致,證明了理論分析方法的合理性以及計(jì)算模型的正確性。
[Abstract]:The planetary reducer adopts the moving axis transmission, reasonably applies the internal and external meshing, and many planetary gears bear the load simultaneously. Therefore, compared with the common gear reducer, the planetary reducer has a great advantage in the transmission performance. In many cases is used to replace the fixed-axis reducer as a speed-up, deceleration and other devices. However, because of the compact structure and small heat dissipation area of the planetary reducer, the reliability and efficiency of its transmission will be greatly affected. It is more and more important to study the distribution and change of temperature field in the working process of planetary reducer. The relative motion and force of the bearing are analyzed in detail, and the calculation formulas of the load and velocity of the gear meshing point are given. At the same time, the contact load of the rolling body of the rolling bearing and the relative velocity of the rolling body and the ring are given. It is used as the basis for the analysis of the internal heat source of the reducer, and through the study of the internal friction pair of the planetary reducer, the heat flux power model of the heat source of the friction pair is established according to the principle of friction power loss, the advantages and disadvantages of each method are compared, and their respective applicable situations are determined. The wind drag loss model, oil stirring loss model and heat generation model of coupling for high speed rotating parts are established, and the calculation model of convection heat transfer coefficient on the surface of parts, including the convection heat transfer coefficient of gear surface and oil and gas mixture, is established according to the heat transfer principle. Based on the analysis of the heat transfer relationship between the inner parts of the planetary reducer and the inner parts of the planetary reducer, a network model of the heat flux transfer of the reducer system is established, and the heat transfer coefficient between the inner ring of the bearing and the rolling body and the lubricating oil or oil / gas mixture is analyzed. The interactive program interface and thermal network solution program are compiled with MATLAB language, the steady and transient temperature distribution of reducer is given, and the transmission platform of planetary reducer is built. The temperature of the key nodes is measured through the temperature data acquisition experiment in the actual work of the reducer. The comparison with the calculated results shows that the two results are in agreement with each other, which proves the rationality of the theoretical analysis method and the correctness of the calculation model.
【學(xué)位授予單位】：南京航空航天大學(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)期刊論文 前1條

1 趙大軍;隗延龍;王繼新;孫友宏;張強(qiáng);錢(qián)方;楊虎偉;;全液壓頂驅(qū)減速系統(tǒng)傳熱特性[J];吉林大學(xué)學(xué)報(bào)(地球科學(xué)版);2012年S3期

相關(guān)博士學(xué)位論文 前1條

1 樊越;航空相機(jī)光機(jī)熱分析與熱控技術(shù)研究[D];中國(guó)科學(xué)院研究生院（光電技術(shù)研究所）;2013年

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本文編號(hào)：2006961