The Temperature Prediction Model of Main Shaft System
The rotation of the spindle causes the accumulation of internal heat,and the transfer of heat to the spindle will deform it,which in turn will affect the rotation accuracy of the shaft system.Combined with the actual working conditions of the spindle,the heat generation model of the spindle shaft system was es-tablished.A shafting temperature rise test bench that can bear the composite force was built,and the temper-ature of the outer ring surface of the shafting bearing was detected,and the shafting heat generation was modified by combining the theoretical model.The finite element model of the spindle shafting temperature field was established,and the temperature field distribution of the spindle shafting system under the given working conditions was analyzed.Combined with the test data,the shafting heat transfer coefficient was op-timized,and the shafting temperature field prediction model was established.Comparing the experimental results and the data before and after optimization,the accuracy of the prediction model is improved by 5%,which provides a reference for the intelligent development of the spindle system.
main shaft systemtemperature fieldexperimentfinite elementprediction model
NETL
NSTL
万方数据
维普
