Study on Capacity of Vertical Lathe for Heavy Hydrostatic Bearing

Abstract:

For DVT500 vertical lathe of the carrying capacity of heavy hydrostatic bearing problem, Through the simplification of the geometric model of a single oil pad to derive the effective bearing area of a single oil pad, then establish its mathematical model, for the following to prepare for the simulation of heavy hydrostatic bearing, and through the simulation of heavy hydrostatic bearing, get the input under the condition of unchanged, with the constant improvement of the speed, the change of heavy hydrostatic bearing pressure field. Results show that the feed quantity under the condition of unchanged, with the constant improvement of the speed, start from the center of the biggest oil cavity pressure peak around gradually diminishing, isobar and high oil and shape of cavity shape basically the same. Numerical calculation results reflect the inside of the bearing pressure distribution, the simulation results for the engineering practice the bearing oil cavity structure optimization design provides a theoretical basis.

• Periodical: Materials Science Forum (Volumes 800-801)
• Pages: 559-563
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.800-801.559
• Online since: July 2014
• Authors: Shi Gang Wang*, Zi Jian Qiu, Dong Sheng Li
• Keywords: Bearing Capacity, Heavy Hydrostatic Bearing, Numerical Simulation, Pressure Field

References

[1] Safar Z. S., Mote C. D. Analysis of hydrostatic thrust bearings under non-axisymmetric operation. Wear. 61 (1) (1980) 9-20.

DOI: 10.1016/0043-1648(80)90107-6

[2] J. S. Yapur, V. K. Kapur. Variable viscosity and density effects in a porous hydrostatic thrust bearing. Wear. 69 (3) (1981) 261-275.

DOI: 10.1016/0043-1648(81)90318-5

[3] Suresh Verma, Vijay Kumar, K. D. Gupta. Analysis of multirecess hydrostatic bearing operating with micropolar lubricant. Journal of Tribology. 131 (2) (2009) 021103-1-9.

DOI: 10.1115/1.3070583

[4] E. Rajasekhar Nicodemus, Satish C. Sharma. Influence of wear on the performance of multirecess hydrostatic bearing operating with micropolar lubricant. Journal of Tribology. 132 (2) (2010) 021703-1-11.

DOI: 10.1115/1.4000940

[5] A. N. Bolotov, Yu. A. Strel'nikov. Effect of high hydrostatic pressure on the external friction coefficient. Journal of Friction and Wear. 33 (3) (2012) 174-180.

DOI: 10.3103/s1068366612030038

[6] Xin Hua Hu, Ji Long Yang, Wei Jiang. Under the condition of variable viscosity of hydrostatic bearing sliding boots vice theory research. Machine with hydraulic. 2 (2003) 37-38.