本文關(guān)鍵詞：零卷吸條件下滾子摩擦副彈流特性的實驗研究　出處：《潤滑與密封》2017年06期 　論文類型：期刊論文

  更多相關(guān)文章： 彈流潤滑 零卷吸速度 滾子

【摘要】：采用線接觸光彈流實驗裝置,在擺動工況下研究滾子在零卷吸速度條件下的彈流特性,探討不同周期同一載荷下滾子摩擦副在零卷吸速度時油膜厚度的變化情況,以及載荷對零卷吸速度下滾子彈流特性的影響。結(jié)果表明:在滾子轉(zhuǎn)速近零卷吸速度時,擠壓效應(yīng)起主導(dǎo)作用,油膜被封在接觸區(qū)內(nèi),形成凹陷,并且該處油膜較為稀薄;在往復(fù)運動工況下,滾子周期性運動的次數(shù)影響零卷吸速度時滾子的油膜厚度,在起動瞬間滾子中部的油膜厚度最小,隨著擺動次數(shù)的增加,滾子中部的油膜厚度逐漸增加,多次擺動后,油膜將達(dá)到相對穩(wěn)定的厚度;載荷對滾子零卷吸速度下的彈流特性影響較大,隨載荷的增大接觸區(qū)增大,滾子端部最小油膜厚度變小,滾子端部邊緣效應(yīng)增大。
[Abstract]:The elastohydrodynamic characteristics of rollers at zero entrainment velocity were studied by using a linear contact photoelastohydrodynamic experimental device under oscillating conditions. The variation of oil film thickness of roller friction pair at zero entrainment velocity under the same load with different periods is discussed. The results show that the squeezing effect plays a leading role when the roller speed is near zero entrainment speed, and the oil film is sealed in the contact area to form a depression. And the oil film is thinner; Under reciprocating motion condition, the number of periodic motion of roller affects the oil film thickness of roller with zero entrainment speed, and the oil film thickness of the middle part of roller is the smallest at the moment of starting, and increases with the increase of swing times. The thickness of the oil film in the middle of the roller increases gradually, and the oil film will reach a relatively stable thickness after several oscillations. The load has a great influence on the elastohydrodynamic characteristics of the roller at zero entrainment velocity. With the increase of the load, the minimum oil film thickness at the end of the roller becomes smaller and the edge effect of the end of the roller increases with the increase of the load.
【作者單位】： 常州大學(xué)機(jī)械工程學(xué)院;常州光洋軸承股份有限公司;
【基金】：江蘇省前瞻性科技聯(lián)合研究項目(BY2015027-09) 江蘇省自然科學(xué)基金項目(BK2011238)
【分類號】：TH117.2
【正文快照】： )j縥縥縥縥，

本文編號：1381392