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1.埃夫特智能装备股份有限公司, 安徽 芜湖 241000
2.安徽工程大学 机械工程学院, 安徽 芜湖 241000
许礼进(1975— ),男,安徽安庆人,本科,高级工程师;主要研究方向为工业机器人的研发;daipeng_ahpu@163.com。
纸质出版日期:2023-04-15,
收稿日期:2022-03-10,
修回日期:2022-03-31,
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许礼进,陈青,代鹏等.外圈与轴承座配合间隙对齿轮-轴-轴承系统振动性能的影响[J].机械传动,2023,47(04):30-37.
Xu Lijin,Chen Qing,Dai Peng,et al.Effects of Fit Clearance Between the Outer Ring and the Housing on Vibration Characters of the Gear-shaft-bearing System[J].Journal of Mechanical Transmission,2023,47(04):30-37.
许礼进,陈青,代鹏等.外圈与轴承座配合间隙对齿轮-轴-轴承系统振动性能的影响[J].机械传动,2023,47(04):30-37. DOI: 10.16578/j.issn.1004.2539.2023.04.005.
Xu Lijin,Chen Qing,Dai Peng,et al.Effects of Fit Clearance Between the Outer Ring and the Housing on Vibration Characters of the Gear-shaft-bearing System[J].Journal of Mechanical Transmission,2023,47(04):30-37. DOI: 10.16578/j.issn.1004.2539.2023.04.005.
齿轮-轴-轴承系统是现代机械工业常用的传动机构。当轴承外圈与轴承座出现配合间隙时,传动系统会产生复杂的振动响应,使运行状态识别变得十分困难。建立了36自由度的齿轮-轴-配合间隙轴承系统动力学模型,该模型结合齿轮副系统和轴承系统,考虑了配合间隙引起的碰摩;并通过Hertz理论中的非线性接触和库仑摩擦模型计算了轴承外圈和轴承座之间的接触力。结果表明,当轴承外圈与轴承座之间产生配合间隙后,传动系统的时域响应受到轴承外滚道故障频率的调幅,配合间隙越大,调幅现象越严重; 由于衰减次数的增加,响应频谱上出现齿轮副和轴承的超谐波频率,传动系统的超谐波响应被激发; 随着轴承外圈配合间隙的增加,更高阶的超谐波响应会被激发。最后,通过实验验证了所建立模型和对既得结果分析的正确性。
Gear-shaft-bearing systems are commonly used in transmission mechanisms. When there are fit clearances between the bearing outer ring and the bearing housing
complex vibration responses will be generated
which makes the recognition of operating status more difficult. Thus
a 36 DOFs model of the gear-shaft-bearing system with bearing fit clearances is established. In this model
the gear pair system and the bearing system are combined
the collision force and friction force caused by the fit clearance are considered
which are calculated by the nonlinear contact in Hertz theory and Coulomb friction model. The results show that when there are fit clearances on the bearing
the amplitude modulation of the bearing outer raceway to the system time-domain response is exacerbated. The larger the fit clearance is
the more serious the amplitude modulation will be. Due to the increase in the number of attenuations
the multiple harmonic components of gear pairs and bearings are generated on the spectrum. As the bearing fit clearance is increased
the higher multiple harmonic components will be generated. Finally
the established model and the analysis of the results are verified by experiments.
齿轮-轴-轴承系统配合间隙碰摩振动响应
Gear-shaft-bearing systemFit clearanceCollision and frictionVibration response
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