Study on Characteristics of DVT500 Feedback Hydrostatic Thrust Bearing

Abstract

With the increase of the weight and volume of the processed parts, large CNC vertical lathe has become the ideal equipment for large parts. The main factor that influences the processing efficiency of CNC vertical lathe is hydrostatic thrust bearing speed. The thrust ball bearing with DVT500 CNC vertical lathe was adapted as the research object to research on motion characteristics of CNC vertical lathe hydrostatic thrust bearing, and the three-dimensional flow mathematical model and boundary condition of hydrostatic thrust bearing system were built up. Then the hydrostatic thrust bearing temperature field distribution and lubricating properties were obtained with the use of computational fluid dynamics (CFD) theory and the finite volume method combined with the segregated solver of FLUENT. The simulation results show that, using oil feedback can improve the bearing capacity and stability of thrust bearing, structure of large hydrostatic thrust bearing design and has a guiding significance to the operation reliability.