利用离心力的主轴轴承可变预紧装置研究  

Study on Automatic Variable Preload Device for Spindle Bearing by Using Centrifugal Force

作　　者：张敬[1] ZHANG Jing(Mechanical Engineering Training Center, Tianjin Vocational Institute, Tianjin 300410, Chin)

机构地区：[1]天津职业大学机械工程实训中心,天津300410

出　　处：《煤炭技术》2018年第4期293-296,共4页Coal Technology

摘　　要：提出一种基于离心力的主轴轴承可变预紧装置,该装置能够根据主轴转速的变化自动设置轴承的预紧力。包括用于预加载的主轴承,将离心力转换成轴向力的辅助轴承用于传递力和离心元件,以及提供初始预紧力的预紧弹簧;利用有限元分析仿真软件ANSYS对装置进行了接触非线性分析,获得了建立原始装置所需的设计数据;最后通过实验验证了装置运行的有效性和稳定性。The automatic variable preload device for spindle bearing by using centrifugal force is devel- that converts the centrifugal force into a force in the axial direction, and a constant pressure preload spring that applies the initial preload to the main bearing. The contact nonlinear analysis of the device is carried out by using the finite element analysis software ANSYS, and the design data of the original device is obtained. Finally, the validity and stability of the device is verified by experiments.

关 键 词：电主轴 刚度 离心力 有限元分析 接触非线性 

分 类 号：TH132[机械工程—机械制造及自动化]