Scratch damage on guiding surfaces of high-speed bearings under oil cut-off condition

被引：10

作者：

Wang, Che ^{[1
]}

Zhang, Chuanwei ^{[1
]}

Bao, Maokuan ^{[1
]}

Gu, Le ^{[1
]}

Wang, Liqin ^{[1
,2
]}

Wei, Xunkai ^{[3
]}

Li, Wanrong ^{[4
]}

机构：

[1] Harbin Inst Technol, MIIT Key Lab Aerosp Bearing Technol & Equipment, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, State Key Lab Robot & Syst, Harbin 150080, Peoples R China

[3] Beijing Aeronaut Engn Technol Res Ctr, Beijing 100076, Peoples R China

[4] Beijing Power Machinery Inst, Beijing 100074, Peoples R China

来源：

ENGINEERING FAILURE ANALYSIS | 2022年 / 140卷

基金：

中国国家自然科学基金;

关键词：

Scratch damage; High -speed bearing; Thermal instability; Frictional heat; Plastic deformation; RAY PHOTOELECTRON-SPECTROSCOPY; BALL-BEARING; ALL-STEEL; TEMPERATURE; FRICTION; HYBRID; WEAR; XPS;

D O I：

10.1016/j.engfailanal.2022.106624

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The scratch damage mechanism on guiding surfaces of high-speed bearings due to impact-sliding coupling action under the oil cut-off condition was investigated. The surface topography and element composition on the scratch surfaces were tested. The impact-sliding contact behavior between the cage and outer ring was analyzed by using the finite element method. The results showed that scratch wear with obvious adhesion and oxidation occurred on the guiding surface of the outer ring. Plastic deformation was generated in near-surface layers with a depth of about 15 mu m. The thermal shear instability and tribochemical reaction were the root causes of the scratch damage on guiding surfaces. Under the oil cut-off condition, the impact-sliding contact between the cage and ring generated high temperature rise, leading to material softening and surface oxidation. Consequently, adhesion occurred with obvious plastic deformation due to the shear instability of near-surface material at impact-sliding contact.

引用

页数：10

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