轴承预紧力对陶瓷电主轴特性影响分析  

Based on the Bearing Pre-tightening Force Analysis on Characteristics of the Ceramic Electric Spindle

作　　者：张郊[1] 吴玉厚[1] 张丽秀[1] 李颂华[1] 

机构地区：[1]沈阳建筑大学交通与机械工程学院,沈阳110168

出　　处：《组合机床与自动化加工技术》2015年第1期49-53,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金项目(51375317);教育部创新团队支持计划项目(IRT1160)

摘　　要：基于170SD30SY无内圈陶瓷电主轴转子具有比重轻、耐磨、高弹性模量等优良的综合特性,对不同预紧力载荷下的主轴前端振动位移进行仿真分析;在ANSYS中求解因预紧力在轴承处摩擦产生的温升,并导入整个模型当中,研究整个温度场的分布;对轴承在不同预紧力工况下的使用寿命进行计算分析;依据上述仿真和计算分析,并考虑合理的工况条件下选择合理的预紧力,在该预紧力下进行了振动和温升的实验测量,与仿真进行对比,验证仿真的正确性,从而证明选取预紧力的正确性。Based on 170SD30-SY without inner ring ceramic spindle rotor has the excellent characteristics of light weight, wear resistance and high elastic modulus, simulating and analysing the vibration displacement of the front spindle under different pre-tightening force. Using ANSYS to solve the friction of the bearing temperature which is caused by pre-tightening force and import the temperature rise into the entire model in which to study the distribution of the whole temperature field. Calculating the service life of the bearing in different conditions with the pre-tightening force. Based on the above analysis and different conditions, choosing a reasonable pretightening force, at the same time, using this preload carried out to measure vibration and temperature rise experiments, comparing the results with the simulations, thus proving the correct-ness of simulations and the selected preload.

关 键 词：陶瓷电主轴 预紧力 有限元 振动 使用寿命 

分 类 号：TH16[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]