机械工程学报
機械工程學報
궤계공정학보
Journal of Mechanical Engineering
2015年
21期
80-86
,共7页
沟曲率半径系数%特大型轴承%四点接触球轴承%静承载能力
溝麯率半徑繫數%特大型軸承%四點接觸毬軸承%靜承載能力
구곡솔반경계수%특대형축승%사점접촉구축승%정승재능력
coefficient of raceway groove curvature radius%large-size bearing%four-point contact ball bearing%static load-carrying capacity
沟曲率半径系数是轴承设计中一个重要的设计参数,对轴承的承载能力和疲劳寿命有较大影响.目前为止,特大型四点接触球轴承沟曲率半径系数的设计依靠经验取值,缺乏设计依据,由此设计出来的轴承不能保证满足承载能力的要求.给出了特大型四点接触球轴承精确静承载曲线的绘制方法,提出了根据特大型四点接触球轴承精确静承载曲线设计轴承沟曲率半径系数的方法并给出了相应的设计流程,同时还给出了此类轴承疲劳寿命的计算方法.给出的沟曲率半径系数设计方法能够精确设计特大型四点接触球轴承的沟曲率半径系数,设计出的轴承一定满足轴承承载能力的要求及较高疲劳寿命的要求.此外,该设计方法可提高轴承的设计效率,并为轴承沟曲率半径系数设计方法的发展提供理论基础.
溝麯率半徑繫數是軸承設計中一箇重要的設計參數,對軸承的承載能力和疲勞壽命有較大影響.目前為止,特大型四點接觸毬軸承溝麯率半徑繫數的設計依靠經驗取值,缺乏設計依據,由此設計齣來的軸承不能保證滿足承載能力的要求.給齣瞭特大型四點接觸毬軸承精確靜承載麯線的繪製方法,提齣瞭根據特大型四點接觸毬軸承精確靜承載麯線設計軸承溝麯率半徑繫數的方法併給齣瞭相應的設計流程,同時還給齣瞭此類軸承疲勞壽命的計算方法.給齣的溝麯率半徑繫數設計方法能夠精確設計特大型四點接觸毬軸承的溝麯率半徑繫數,設計齣的軸承一定滿足軸承承載能力的要求及較高疲勞壽命的要求.此外,該設計方法可提高軸承的設計效率,併為軸承溝麯率半徑繫數設計方法的髮展提供理論基礎.
구곡솔반경계수시축승설계중일개중요적설계삼수,대축승적승재능력화피로수명유교대영향.목전위지,특대형사점접촉구축승구곡솔반경계수적설계의고경험취치,결핍설계의거,유차설계출래적축승불능보증만족승재능력적요구.급출료특대형사점접촉구축승정학정승재곡선적회제방법,제출료근거특대형사점접촉구축승정학정승재곡선설계축승구곡솔반경계수적방법병급출료상응적설계류정,동시환급출료차류축승피로수명적계산방법.급출적구곡솔반경계수설계방법능구정학설계특대형사점접촉구축승적구곡솔반경계수,설계출적축승일정만족축승승재능력적요구급교고피로수명적요구.차외,해설계방법가제고축승적설계효솔,병위축승구곡솔반경계수설계방법적발전제공이론기출.
The coefficient of raceway groove curvature radius is an important parameter for bearing design. It has important influence on load-carrying capacity and fatigue life of bearings. Until now there is no design method for the coefficient of raceway groove curvature radius of the large-size four-point-contact ball bearing and its design depends on engineering experience, which would lead to the load-carrying capacity of the designed bearing possibly not to meet the use requirements. A precise drawing method is proposed for the static load-carrying capacity curve of large-size four-point-contact ball bearings,based on which, a new design method for the coefficient of raceway groove curvature radius of the large-size four-point-contact ball bearing is presented and the corresponding design procedure is provided. The computation method of the fatigue life for this type bearing is also proposed. By this new design method, the coefficient of raceway groove curvature radius of the large-size four-point-contact ball bearing can be designed accurately. The bearing designed by this method must meet the bearing static load –carrying capacity and its fatigue life can be improved. The bearing design efficiency will also be improved by this method. The research results can provide theory basis for developing the design method of the coefficient of raceway groove curvature radius of the large-size four-point-contact ball bearing.
