Investigation of the High Speed Rolling Bearing Temperature Rise With Oil-Air Lubrication
Investigation of the High Speed Rolling Bearing Temperature Rise With Oil-Air Lubrication
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DOI：
10.1115/1.4003501
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发表时间：
2011-04
影响因子：
2.5
通讯作者：
Shuyun Jiang;H. Mao
中科院分区：
文献类型：
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作者：
Shuyun Jiang;H. Mao
油气润滑系统已广泛应用于滚动轴承。但随着转速的提高，温升会急剧增加，导致球轴承的使用寿命缩短。现有文献为滚动轴承油气润滑提供了有价值的基础数据，但仍有一些油气润滑方面的问题没有得到解决。在这项研究中，一个实验装置，以调查油气润滑的高速球轴承已经开发，和性能测试的混合陶瓷和钢球轴承的广泛的操作条件下，包括油气供应管道长度，轴承预紧力，润滑间隔，油的类型，油的粘度，喷嘴设计，和转速已经进行。试验结果表明，管道长度为1.5m时，轴承温升最低。对于钢球轴承，适当的预紧力随着转速的增加而减小，而混合陶瓷球轴承的温升对轴向预紧力不敏感。每一转速下轴承都有适量的润滑油，随着转速的增加，轴承所需的润滑油量也随之增加。不同转速下的试验轴承，在100 cSt粘度的润滑油下，最低温升几乎相同;粘度越高或越低，轴承温升越大。喷嘴设计是影响球轴承温升的重要因素，而合适的喷嘴几何参数与轴承的保持架降落方式密切相关。试验轴承的温升随转速的增加而增加，在相同工况下，混合陶瓷球轴承的温升始终低于钢球轴承。
The oil-air lubrication system has been widely used for rolling ball bearing. However, as the rotation speed increases, the temperature rise will increase dramatically, resulting in shortening the service life of the ball bearing. The existing literature has offered valuable fundamental data about the oil-air lubrication of rolling bearing; however, there are still some problems that concerned the oil-air lubrication, which are not addressed. In this study, an experiment setup to investigate the oil-air lubrication for the high speed ball bearing has been developed, and performance tests of hybrid ceramic and steel ball bearings under the extensive operating conditions including oil-air supply pipe length, bearing preload, lube interval, oil type, oil viscosity, nozzle design, and rotation speed have been conducted. The test results show that the bearing has the lowest temperature rise with the pipe length of 1.5 m. For the steel ball bearing, the proper preload decreases with increasing of the rotating speed, and the temperature rise of the hybrid ceramic ball bearing is not sensitive to the axial preload. There exists a proper amount of lubricant for the bearing at each rotational speed; and a larger amount of lubricant is required for the bearing as the rotating speed increases. The tested bearings under different speeds have almost the same lowest temperature rise under the lubricant with the viscosity of 100 cSt; a higher or lower viscosity will increase the bearing temperature rises. The nozzle design is an important factor to affect the temperature rise of the ball bearing, and the suitable geometric parameter of the nozzle is closely related to the cage landing method of the bearing. The temperature rise of tested bearings increases with the increase in the rotation speed; and the hybrid ceramic ball bearing always has a lower temperature rise than that of the steel ball bearing at the same operating conditions.