Based on the spindle of floor-type boring and milling machine center,the influence of parameters such as spindle speed and compressed air flow on the variation of temperature filed is studied by means of Simulation module in SolidWorks software.The analysis results show that the temperature in the contact area between the bearing inner ring and the ball is the highest and radiates outward,and the oil gas lubrication nozzle is close to the area.Bearing temperature increases with the increase of spindle speed.When exceeding a certain limit speed,the temperature rises abruptly,at which time parameters need to be optimized.Bearing temperature decreases with the increase of spindle speed and and increases with the increase of lubrication oil viscosity.Reasonable selection of compressed air flow and lubrication oil viscosity has great significance for bearing temperature.The circulating cooling of bush can decrease the temperature of the bearing with oil-air lubrication to a certain extent.
关键词
落地式铣镗加工中心/油气润滑/有限元分析/温度场
Key words
floor boring and milling machining center/oil-air lubrication/finite element analysis/temperature filed
维普
万方数据