CAJ | 학술논문

在滚动轴承动力学分析理论基础上建立含轴承零件工作表面波纹度的深沟球轴承动力学数学模型，并以某型号低噪音深沟球轴承为例，对不同结构参数、工况参数及谐波参数下低噪音深沟球轴承的振动特性进行理论分析。结果表明，合理选取径向游隙、内外沟曲率半径系数及保持架兜孔间隙等参数能使轴承本身达到减振降噪目的；振动值随轴承宽度增加逐渐减小；施加一定轴向载荷能有效降低轴承振动；存在的合理转速使用范围能有效降低轴承振动；内外滚道谐波阶次等于钢球数目整数倍时，轴承振动明显加剧；外滚道激励谐波对应的激励频率为 kzfc ，内滚道激励谐波对应的激励频率为 kzfc ＋fs；偶次谐波阶次钢球表面波纹度对轴承振动有激励作用；轴承旋转套圈会激励更大的轴承振动值；瞬时载荷增加或瞬时速度提高均会致轴承振动增大。
재곤동축승동역학분석이론기출상건립함축승령건공작표면파문도적심구구축승동역학수학모형，병이모형호저조음심구구축승위례，대불동결구삼수、공황삼수급해파삼수하저조음심구구축승적진동특성진행이론분석。결과표명，합리선취경향유극、내외구곡솔반경계수급보지가두공간극등삼수능사축승본신체도감진강조목적；진동치수축승관도증가축점감소；시가일정축향재하능유효강저축승진동；존재적합리전속사용범위능유효강저축승진동；내외곤도해파계차등우강구수목정수배시，축승진동명현가극；외곤도격려해파대응적격려빈솔위 kzfc ，내곤도격려해파대응적격려빈솔위 kzfc ＋fs；우차해파계차강구표면파문도대축승진동유격려작용；축승선전투권회격려경대적축승진동치；순시재하증가혹순시속도제고균회치축승진동증대。
Based on the dynamic analysis theory of rolling bearings,a dynamic model for deep groove ball bearings considering the effects of bearing components'working surface waviness was established.Taking a type of low-noise deep groove ball bearing as an example,the bearing vibration characteristics were analyzed theoretically with various bearing structural parameters,working conditions and working surface wavinesses.The results showed that the bearing basic vibration can be reduced by selecting reasonable primary parameters,for instance,bearing radial clearance,inner and outer raceway groove curvature radius coefficients,pocket clearance of cage,and so on;the larger the bearing width,the smaller the bearing vibration;a certain axial loads can reduce effectively the bearing vibration;there is a reasonable rotating speed range for smaller bearing vibration;the severe vibration occurs when the inner and outer raceway surface waviness orders are an integer multiple of the number of balls;the exciting frequency corresponding the waviness orders of outer raceway is kzfc and that of the inner raceway is kzfc +fs;the even waviness orders of ball working surface has an exciting effect on the bearing vibration;the vibration produced by rotating ring is more severe than that of fixed ring;the bearing vibration increases greatly with increase in radial loads or rotating speed.