本文關(guān)鍵詞：多工況滾子摩擦副彈流潤(rùn)滑實(shí)驗(yàn)裝置的設(shè)計(jì)　出處：《潤(rùn)滑與密封》2016年04期 　論文類型：期刊論文

  更多相關(guān)文章： 彈流潤(rùn)滑 線接觸 多工況實(shí)驗(yàn) 凹陷

【摘要】：為了更好地觀測(cè)滾子摩擦副在不同卷吸速度下的彈流潤(rùn)滑現(xiàn)象,開展有限長(zhǎng)線接觸彈流潤(rùn)滑油膜成膜機(jī)制的實(shí)驗(yàn)研究,對(duì)原有的線接觸光干涉實(shí)驗(yàn)裝置進(jìn)行改進(jìn),將原有的曲柄滑塊機(jī)構(gòu)設(shè)計(jì)成絲杠推桿,從而將旋轉(zhuǎn)運(yùn)動(dòng)轉(zhuǎn)變成直線運(yùn)動(dòng)。實(shí)驗(yàn)表明:改進(jìn)后的實(shí)驗(yàn)裝置可以有效地實(shí)現(xiàn)滾子卷吸運(yùn)動(dòng)速度大小和運(yùn)動(dòng)規(guī)律的變化,可以觀測(cè)到非常清晰的油膜干涉圖像,在滾子接觸區(qū)域油膜呈現(xiàn)出較為明顯的彈流特征,可為線接觸彈流的理論研究提供可靠的實(shí)驗(yàn)數(shù)據(jù)。在改進(jìn)后的實(shí)驗(yàn)裝置上,對(duì)滾子在突然加速的工況下進(jìn)行了實(shí)驗(yàn)研究,由于步進(jìn)電機(jī)的特點(diǎn),在突然加速的瞬間有極短的停頓,導(dǎo)致擠壓效應(yīng)較為明顯,油膜被封在滾子的接觸區(qū)域內(nèi)形成凹陷,出現(xiàn)封油現(xiàn)象,當(dāng)滾子卷吸速度增加時(shí),油膜厚度也會(huì)隨之增加。
[Abstract]:In order to better observe the elastohydrodynamic lubrication of roller friction pairs at different entrainment speeds, the film forming mechanism of finite line contact elastohydrodynamic lubricating oil film was studied experimentally. The original experimental device of linear contact light interference is improved, and the original crank slider mechanism is designed as a lead screw push rod. The experimental results show that the improved device can effectively change the speed and law of roller entrainment motion. A very clear image of oil film interference can be observed, and the oil film in the roller contact area shows obvious elastohydrodynamic characteristics. It can provide reliable experimental data for the theoretical study of linear contact elastohydrodynamic. In the improved experimental device, the roller is studied under the condition of sudden acceleration, because of the characteristics of stepping motor. At the moment of sudden acceleration, there is a very short pause, which leads to the obvious extrusion effect. The oil film is sealed in the contact area of the roller to form a depression, and the oil sealing phenomenon occurs, when the roller entrainment speed increases. The thickness of the oil film will also increase.
【作者單位】： 常州大學(xué)機(jī)械工程學(xué)院;
【基金】：江蘇省自然科學(xué)基金項(xiàng)目(BK2011238) 國(guó)家“十二五”重點(diǎn)科研項(xiàng)目(XXXT-125-GH-148) 江蘇省前瞻性科技聯(lián)合研究項(xiàng)目(BY2015027-09)
【分類號(hào)】：TH87
【正文快照】： )j縥縥縥縥縥縥縥，

本文編號(hào)：1431909