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논문 기본 정보

자료유형
학술저널
저자정보
Yonghua Wang (Shenyang Jianzhu University) Songhua Li (Shenyang Jianzhu University) Chao Wei (Shenyang Jianzhu University) Yu Zhang (Shenyang Jianzhu University) Gefei Lin (Shenyang Jianzhu University) Dong An (Shenyang Jianzhu University) Jining Zhao (Shenyang Jianzhu University)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research Vol.25 No.4
발행연도
2024.8
수록면
643 - 659 (17page)

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초록· 키워드

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The lubrication methods and material characteristics of high-speed rolling bearings significantly impact the vibration andtemperature of motorized spindles in high-speed machine tools. This study focuses on replacing traditional metal bearingswith full ceramic ball bearings and analyzes three different types of bearings: Si3N4-Si3N4, ZrO2-Si3N4, and GCr15-GCr15. Based on the quasi-static and oil film thickness theory of bearing, the influence of rotational speed on the centrifugal forceof bearings of different materials and the oil film thickness of the raceway center of inner and outer rings was analyzed. According to different lubrication methods, the vibration and temperature rise characteristics of motorized spindle bearingsystems under high-speed working conditions are analyzed in experiment. The results indicate that Si3N4-Si3N4 bearingsexhibit lower centrifugal force and thicker oil films than the others. The experimental results show that the vibration-effectivevalue of the Si3N4-Si3N4 bearing is lower than that of the other two materials when the speed is higher. Grease lubricationslightly reduces vibration acceleration compared to oil-air lubrication. The temperature rise difference of motorized spindle ofoil-air lubricated full ceramic bearings is smaller than that of grease lubrication, and the average temperature rise differenceis 4℃. Full ceramic bearings outperform steel bearings in all aspects under the same working conditions, and the Si3N4-Si3N4bearing embodies the advantages of dynamic and thermal performance.

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