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研究生:高志忠
研究生(外文):Gao, Chih-Chung
論文名稱:高速球軸承在油氣潤滑系統下之性能研究
論文名稱(外文):The Performance of High-Speed Ball Bearings with Oil-Air Lubrication System
指導教授:鄭友仁
指導教授(外文):Yeau-Ren Jeng
學位類別:碩士
校院名稱:國立中正大學
系所名稱:機械工程學系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:1997
畢業學年度:85
語文別:中文
論文頁數:111
中文關鍵詞:球軸承油氣潤滑軸承預壓軸承溫昇摩擦扭矩
外文關鍵詞:ball bearingoil-air lubricationpreloadtemperature risefriction torque
相關次數:
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球軸承因具備啟動摩擦力低及旋轉偏擺量小等優點,目前已被廣泛應用於
工具機主軸、渦輪引擎及真空幫浦等高速旋轉系統。但是球軸承在高速運
轉下的動態負荷與溫昇乃為提高極限轉速的主要障礙,如何調整軸承預壓
降低軸承球與軌道環間之滑動並提升潤滑技術減少軸承發熱量將是球軸承
突破轉速限制的關鍵。油氣潤滑系統油量控制精確,散熱效率高,為一適
用於高速球軸承之潤滑裝置,但其週期性的供油方式造成了供油量的變動
,因此提高供油穩定度,維護潤滑品質將是使用油氣潤滑系統的重要課題
。本論文首先設計製作油量變動量測裝置,針對油氣潤滑系統進行供油穩
定性之量測實驗,以改變潤滑系統操作參數的方式,找出抑制供油量變動
的方法。接著設計開發軸承性能測試系統,以穩定的供油狀況進行軸承性
能測試。藉由調整供油參數、軸承轉速與預壓量及量測軸承溫昇與摩擦扭
矩的方式,判斷球軸承的最佳運轉條件。經由實驗分析,我們獲得了具體
改善油氣潤滑系統供油量變動的方法,並對使用油氣潤滑系統之球軸承提
供了適當的潤滑及預壓操作準則,有效的提升軸承運轉速度。本論文所建
立的軸承性能測試系統亦可適用於油霧、油脂等不同潤滑系統之軸承測試
,提供各種高速軸承之潤滑及預壓特性研究,對於高速潤滑技術的開發將
有實質的幫助。
The ball bearing is widely used on many high speed rotating
systems due to its low starting friction and high load capacity.
However, heat generating and dynamic loading caused by high
speed operation have been the limiting factors for increasing
the speed limit of many high speed ball bearing applications.
Therefore, how to provide proper lubrication and preload to
reduce heat generation effectively are major task for high-speed
ball bearing operation.Recently, oil-air lubrication has been
used on high-speed ball bearing because of precise oil quantity
control and high cooling efficiency. However, the fluctuation
of oil supply resulted from the periodic oil feeding is
unfavorable. In this study, the measuring equipment of
fluctuation of oil supply was established. The operation
parameters affecting stability of oil supply of oil-air
lubrication system are experimentally studied. A test rig for
high-speed ball bearings was also developed. The stable oil
supply conditions obtained from preceding experiments is applied
to bearing tests. The performance of high-speed ball bearing
under different preload, running speed and oil flow rate has
been investigated by measuring temperature rise and friction
torque of test bearing.From this study, operating conditions
that provide stable oil supply and good bearing performance were
established. The effects of bearing preload on bearing
temperature rise was also presented. It is also demonstrated
that the high-speed ball bearing test rig built in this study
provides a useful tool to develop lubrication technology for
high-speed rotating system.
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