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- Title
纯滚动条件下滚动轴承滚球自转速度的计算.
- Authors
祁宏伟; 牛蔺楷; 谢宏浩; 肖 飞; 郑一珍; 熊晓燕
- Abstract
Aiming at the problem that the widely used formula for calculating the ball's self-rotation speed in ball bearings under pure rolling conditions was not reasonable, based on the calculation formula of the ball's self-rotation speed in Harris theory, the derivation process was re vised through kinematic analysis and the corresponding explanations were made. The correct method for calculating the ball's self-rotation speed in ball bearings under the pure rolling condition was given. For the ball's self-rotation speed in ball bearings was an important parameter for fault diagnosis and dynamic analysis of a ball bearing, based on the Gupta model, a dynamic model of rolling ball bearings with ball defects was estab lished. The rationality of the proposed method in calculating the ball's self-rotation speed was discussed by researching the time interval between im pacts and verified through experiments. The results indicate that the a) obtained by the previous calculation formula for the ball's self-rotation speed is larger than the actual self-rotation speed of the ball by o, cosa. In the process of calculating the ball's self-rotation speed in ball bearings, the effect of the translation speed of the center point of the rolling ball on the speed of the rolling ball-raceway contact point should be considered.
- Subjects
ROLLER bearings; DYNAMIC testing; MACHINE bearing testing
- Publication
Journal of Mechanical & Electrical Engineering, 2021, Vol 38, Issue 7, p823
- ISSN
1001-4551
- Publication type
Article
- DOI
10.3969/j.issn.1001-4551.2021.07.003