Cheng Dameng, Jin Guangdi, Gao Yufei, Huang Panling, Shi Zhenyu, Tang Yuanchao
Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan 250061, China.
Shandong Chaoyang Bearing Co., Ltd., Dezhou 253200, China.
Materials (Basel). 2023 Nov 17;16(22):7219. doi: 10.3390/ma16227219.
In the grinding of bearing raceways, the coupling effect between grinding force and heat in the contact area between the grinding wheel and the workpiece causes changes in the material structure and mechanical properties of the raceway surface layer, which can lead to the formation of a grinding-affected layer. The grinding-affected layer has a significant impact on the service performance and fatigue life of bearings. In order to improve the ground surface quality of the outer-ring inner raceway of tapered roller bearings and optimize the processing parameters, this paper presents a study on the grinding-affected layer. A finite element simulation model for grinding the outer-ring inner raceway of the tapered roller bearing was established. The grinding temperature field was simulated to predict the affected-layer thickness during raceway grinding. The correctness of the model was verified through grinding experiments using the current industrial process parameters of bearing raceway grinding. The research results indicate that the highest grinding temperature of the outer-ring inner raceway of the tapered roller bearing is located near the center of the grinding arc area on the thin end edge. As the workpiece speed and grinding depth decrease, the highest grinding temperature decreases, and the dark layer thickness of the grinding-affected layer decreases or even does not occur. The research results can provide theoretical guidance and experimental reference for grinding the raceway of tapered roller bearings.
在轴承滚道磨削过程中，砂轮与工件接触区域的磨削力和热量之间的耦合效应会导致滚道表面层的材料结构和力学性能发生变化，进而可能导致磨削影响层的形成。磨削影响层对轴承的使用性能和疲劳寿命有显著影响。为了提高圆锥滚子轴承外圈 inner raceway 的磨削表面质量并优化加工参数，本文对磨削影响层进行了研究。建立了圆锥滚子轴承外圈 inner raceway 磨削的有限元仿真模型。模拟了磨削温度场以预测滚道磨削过程中的影响层厚度。通过使用当前轴承滚道磨削的工业工艺参数进行磨削实验，验证了模型的正确性。研究结果表明，圆锥滚子轴承外圈 inner raceway 的最高磨削温度位于薄端边缘磨削弧区域的中心附近。随着工件速度和磨削深度的降低，最高磨削温度降低，磨削影响层的暗层厚度减小甚至不出现。研究结果可为圆锥滚子轴承滚道的磨削提供理论指导和实验参考。 （注：原文中“outer-ring inner raceway”直译为“外圈 inner raceway”，这里的“inner raceway”不太明确具体准确含义，可能是“内滚道”之类的专业术语，整体译文结合语境尽量通顺，但部分表述可能因专业术语不太清晰而稍显生硬）
