常幅載荷下滑軌與滾輪壽命及可靠性研究
發(fā)布時間:2018-04-21 06:04
本文選題:角接觸球軸承 + 滑軌。 參考:《軸承》2016年10期
【摘要】:為研究某型運輸機襟翼操縱機構滾動副的磨損行為,在常幅載荷下進行疲勞磨損試驗。利用尺寸測量法測量不同循環(huán)次數下的磨損量,以滾動軸承磨損壽命計算公式計算滾動軸承理論壽命;根據疲勞磨損試驗數據,計算可靠度R=0.99時的疲勞磨損可靠壽命的點估計,并與理論壽命進行比較。結果表明:在滾動軸承與滑軌組成的摩擦副中,滑軌磨損量較大,且存在明顯磨合階段;滾動軸承的磨損量較小,隨時間基本呈線性關系,沒有明顯的磨合階段。
[Abstract]:In order to study the wear behavior of the rolling pair of flap control mechanism of a certain type of transport aircraft, fatigue wear tests were carried out under constant amplitude load. The wear quantity of rolling bearing is measured by the method of dimension measurement, the theoretical life of rolling bearing is calculated by the formula of wear life of rolling bearing, the point estimation of reliable life of fatigue wear when reliability R = 0.99 is calculated according to the data of fatigue wear test. And compared with the theoretical life. The results show that, in the friction pair composed of rolling bearing and sliding rail, the wear amount of sliding rail is larger and there is obvious running-in stage, and the wear amount of rolling bearing is small, which is linear with time, and there is no obvious running-in stage.
【作者單位】: 中國礦業(yè)大學機電工程學院;常熟理工學院機械學院;
【分類號】:V227;TH133.33
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