Double-layer oil film lubrication analysis method and system based on floating bushing

US12092263B1 · kind B1 · utility

Assignee

• Harbin Engineering University · CN

Inventors

• Bin Zhao · Nanhu, CN
• Huaiqian Guo · Xing'an, CN
• Wanyou Li · Xing'an, CN
• Xiqun Lu · Xing'an, CN
• Xuan MA · Beijing, CN
• Xiujiang Shi · Xing'an, CN
• Zhijun Shuai · Xing'an, CN
• Yibin Guo · Tangxia, CN
• Donghua Wang · Xing'an, CN
• Hanzhang Xu · Xing'an, CN
• Hongliang Li · Lo Wu, CN
• Lieyi Dong · Xing'an, CN

Key dates

• Filing date: Jan 11, 2024
• Grant date: Sep 17, 2024
• Expiry date: Jan 11, 2044

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T90/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed is a double-layer oil film lubrication analysis method and system based on a floating bushing. The method includes: determining a roller motion track and a floating bushing motion track according to a roller displacement and a floating bushing displacement; determining, when the motion tracks are closed end to end, minimum values of inner-layer and outer-layer oil film thickness of the floating bushing according to an oil film thickness at each moment; and determining that an abnormality exists in double-layer oil film lubrication when either of the minimum values of the inner-layer and outer-layer oil film thickness of the floating bushing is less than a preset oil film thickness threshold value. According to the present disclosure, more accurate abnormality analysis of double-layer oil film lubrication can be realized.