永磁同步电机电主轴热-结构耦合计算方法

发布时间：2018-05-25 20:02

  本文选题：永磁同步电机电主轴 + 热诱导预紧力　； 参考：《华中科技大学学报(自然科学版)》2017年02期

【摘要】：为了深入研究永磁同步电机电主轴热特性,综合考虑轴承热诱导预紧力及润滑油黏温效应等因素,并基于系统内部多参量耦合作用关系,建立永磁同步电机电主轴热-结构耦合计算方法.以某型号永磁同步电机电主轴为研究对象,进行了温升及热变形测量,试验结果与仿真计算对比表明所建立的计算方法具有足够的精度.采用该计算方法分析了永磁同步电机电主轴热特性,结果表明:电主轴转子温升较低,前后轴承受配合方式、装配位置及热诱导预紧力等因素影响,使轴芯沿轴向存在13℃左右的温差,导致电主轴轴向热伸长成为影响加工精度的主要原因.
[Abstract]:In order to deeply study the thermal characteristics of permanent magnet synchronous electromechanical spindle (PMSM), the factors such as bearing heat induced preload force and lubricating oil viscosity temperature effect are considered synthetically, and based on the coupling relation of multiple parameters in the system. The thermal-structural coupling calculation method of permanent magnet synchronous electromechanical spindle is established. Taking a permanent magnet synchronous electromechanical spindle as the research object, the temperature rise and thermal deformation measurement are carried out. The comparison between the experimental results and the simulation results shows that the proposed calculation method has sufficient accuracy. The calculation method is used to analyze the thermal characteristics of permanent magnet synchronous electromechanical spindle. The results show that the temperature rise of the motor spindle rotor is low, the front and rear bearings are affected by the matching mode, the assembly position and the heat induced preload force, etc. The axial thermal elongation of the motorized spindle is the main reason that affects the machining accuracy because of the temperature difference of about 13 鈩，

本文编号：1934496