Finite Element Analysis of the Strength of Heavy-duty Mining Roller Bearings

Siyuan Liu ； Bin Li

《International Core Journal of Engineering》 6卷5期 (2020/05) Pp. 5-9

https://doi.org/10.6919/ICJE.202005_6(5).0002

摘要

Mining roller cones bit are generally subject to large loads. The causes of failure include tooth failure and bearing system failure. Tooth failure includes tooth loss, fracture, and wear. Bearing failure is the main cause of mining roller bit failure. More than% of the failures are caused by the failure of the bearing system. The main failure forms are: plastic deformation of the bearing surface, fatigue damage, wear, roller jam, etc. The bearing system has a very low life under huge weight-on-bit and torque. Therefore, this paper analyzes the roller cone bit bearing system under heavy load conditions to obtain its stress distribution.

關鍵字

Cone bit ； Bearing system ； Mises stress ； FOS

參考文獻

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Zhongyu Wang, Tao Jiang, Xin Chen, Ruxiao Zhang. Study on Performance of 55SiMoVA Steel for Roller Body of Roller Bit [J]. Mining Machinery, 1979 (04): 60-68.