Working Performance Analysis of Rolling Bearings Used in Mining Electric Excavator Crowd Reducer

1st International Workshop on Materials Science and Mechanical Engineering

材料科学;机械制造

Zhang, Y.H.^1 ; Hou, G.^1 ; Chen, G.^2 ; Liang, J.F.^2 ; Zheng, Y.M.^2

School of Mechanical Engineering, Dalian Jiaotong University, Dalian, Liaoning

116028, China^1

Branch of Gear Transmission, Taiyuan Heavy Industry Co. Ltd, Taiyuan, Shanxi

030024, China^2

关键词: Contact strength;    Contact Stress;    Electric excavators;    Internal load distribution;    Rolling bearings;    Rolling elements;    Simulation analysis;    Working performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/281/1/012038/pdf
DOI  :  10.1088/1757-899X/281/1/012038

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Refer to the statistical load data of digging process, on the basis of simulation analysis of crowd reducer system dynamics, the working performance simulation analysis of rolling bearings used in crowd reducer of large mining electric excavator is completed. The contents of simulation analysis include analysis of internal load distribution, rolling elements contact stresses and rolling bearing fatigue life. The internal load characteristics of rolling elements in cylindrical roller bearings are obtained. The results of this study identified that all rolling bearings satisfy the requirements of contact strength and fatigue life. The rationality of bearings selection and arrangement is also verified.