本文選題：泵　切入點：優(yōu)化　出處：《農(nóng)業(yè)工程學(xué)報》2016年21期

【摘要】：為追求航天器用超低黏度介質(zhì)齒輪泵較好的容積率和較低的發(fā)射成本,該文在創(chuàng)建容積率和新重合度公式的基礎(chǔ)上,采用最優(yōu)化設(shè)計方法,通過泵的單位排量體積或單位排量質(zhì)量最小化,實現(xiàn)了90%的最小容積率和質(zhì)量最輕化,分析了結(jié)構(gòu)參數(shù)對優(yōu)化結(jié)果的影響。結(jié)果表明:采用齒頂重合度優(yōu)化設(shè)計后的根切重合度為 0.3429,不能保證連續(xù)傳動要求;壓力角、軸半徑、齒條刀具齒頂圓角半徑和過渡區(qū)起始角對優(yōu)化結(jié)果,分別有6.07%、7.8%、2.9%和6.4%的影響,總體上影響不大;徑向、軸向間隙的影響很大,并具有0.04、0.07 mm的影響轉(zhuǎn)折點,該轉(zhuǎn)折點為徑向、軸向間隙的取值上限提供了依據(jù)。初次針對航天用齒輪泵的優(yōu)化設(shè)計嘗試,闡明了超低黏度介質(zhì)同樣適用于齒輪泵。該研究可為提高其他行業(yè)用超低黏度液壓泵的研發(fā)提供參考。
[Abstract]:In order to achieve better bulk rate and lower launching cost of ultra-low viscosity medium gear pump for spacecraft, this paper adopts the optimization design method based on the establishment of the formula of volume rate and new coincidence degree.By minimizing the unit displacement volume or the unit displacement mass of the pump, the minimum volume ratio and the minimum mass of 90% are realized. The influence of the structural parameters on the optimization results is analyzed.The results show that the optimum design of tooth top coincidence is 0.3429, which can not guarantee the requirement of continuous transmission, and the pressure angle, shaft radius, tooth top circle radius of rack cutter and the starting angle of transition zone are optimized.The influence of 6.07% and 6.8% is small, and the radial and axial clearance have a great influence, and have the influence turning point of 0.04 ~ 0.07 mm, which provides the basis for the upper limit of radial and axial clearance.Aiming at the optimum design of spaceflight gear pump, it is shown that the ultra-low viscosity medium is also suitable for gear pump.This study can be used as a reference for the development of ultra-low viscosity hydraulic pumps used in other industries.
【作者單位】： 成都大學(xué)機械工程學(xué)院;北京衛(wèi)星制造廠;西華大學(xué)研究生部;
【基金】：北京衛(wèi)星制造廠資助項目(20804) 四川省自然科學(xué)重點資助項目(16ZA0382)
【分類號】：V423

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本文編號：1718655