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基于摩擦学理论,对轴连轴承组件生热进行了研究。针对轴连轴承组件的具体工况及结构特点,分析了轴连轴承组件的发热机理,建立了轴承组件内各部分功率损失计算模型,在此基础上得出了轴承总的生热和轴承各单元间的局部生热。以某型陀螺电机轴连轴承为例分析了不同工作转速和工作载荷对轴承总生热和各单元局部生热的影响。结果表明,轴承转速、轴向载荷对轴承生热影响较大,且钢球与保持架兜孔、保持架与外圈引导面间的滑动摩擦是轴连轴承生热的主要因素。
Based on the tribology theory, the heat generation of the shaft bearing assembly was studied. Aiming at the specific working conditions and structural characteristics of the shaft-bearing assembly, the heating mechanism of the shaft-bearing assembly is analyzed and the calculation model of the power loss of each part in the bearing assembly is established. Based on this, the total heat generation and bearing Local heat generation between cells. Take a certain type of gyroscopic motor shaft bearing as an example, the influence of different working speed and working load on bearing heat generation and local heat generation of each unit is analyzed. The results show that bearing speed and axial load greatly affect the bearing heat generation, and the sliding friction between the ball and the cage pockets and cage and outer guide is the main factor of bearing heat generation.