Oil Film Pressure Characteristics of Liquid Hybrid Bearings in the CNC Lathe

doi:10.12068/j.issn.1005-3026.2017.05.018

Journal of Northeastern University:Natural Science ›› 2017, Vol. 38 ›› Issue (5): 695-699.DOI: 10.12068/j.issn.1005-3026.2017.05.018

• Mechanical Engineering • Previous Articles Next Articles

Oil Film Pressure Characteristics of Liquid Hybrid Bearings in the CNC Lathe

ZHANG Yao-man¹， YIN Xin-xian¹， LIN Xiu-li²， YOU Zhao-peng¹

1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China.

Received:2015-12-10 Revised:2015-12-10 Online:2017-05-15 Published:2017-05-11
Contact: ZHANG Yao-man
About author:-
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Abstract

Abstract:

The spindle assembly of the highly precised CNC lathe was taken as the object， and the theoretical modeling of oil film pressure and the simulation analysis method of the hybrid bearing were studied. First， the Reynolds equation and the oil film’s loading capacity equation were transformed into dimensionless forms， and then the numerical method was used to solve the equation. Accordingly， the dimensionless of oil film pressure distribution and pressure values in different regions and the distribution regularity were obtained by further solving. In addition， the characteristics of oil film pressure distribution and the pressure field in different supply pressures and spindle speeds were obtained by using the fluid dynamics analysis software.The analysis results also provided important reference for further studies on the loading capacity and hybrid bearing design . The feasibility of theoretical modeling and simulation methods were also verified by comparing the results of theoretical analysis and simulation analysis.

Key words: hybrid bearing, pressure characteristics, loading capacity, spindle speed, finite element

CLC Number:

TK502.3

ZHANG Yao-man， YIN Xin-xian， LIN Xiu-li， YOU Zhao-peng. Oil Film Pressure Characteristics of Liquid Hybrid Bearings in the CNC Lathe[J]. Journal of Northeastern University:Natural Science, 2017, 38(5): 695-699.

References

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Oil Film Pressure Characteristics of Liquid Hybrid Bearings in the CNC Lathe

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