【作者】 王玉金；

【导师】 赵韩； 罗继伟；

【作者基本信息】 合肥工业大学 ， 机械工程， 2004， 硕士

【摘要】 本文以混合陶瓷球轴承为研究对象，进行了高速球轴承的拟动力学分析，建立了可用于陶瓷球轴承和全钢制轴承的拟动力学分析模型，预测各种动态性能。分析模型中考虑了高速角接触球轴承特有的各种惯性力及轴承各种结构元素之间的相互作用以及润滑剂与轴承零件的相互作用和游隙的影响等，建立了拟动力学物理模型和平衡关系，形成并求解6n+8个方程。根据模型，利用VB和FORTRAN77，开发了高速陶瓷球轴承的拟动力学分析程序。该程序不仅能够计算出轴承的变形、刚度、发热率、摩擦力矩等动态性能参数，也能计算轴承内部的载荷分布、离心力、陀螺力矩等内容。以典型产品B7005C／HQ1P4为例，分析了油雾润滑情况下的轴承的各种动态性能，并用自行开发的高速电主轴进行不同转速、不同载荷、不同润滑条件和超高速下(dm·N值2.88×10~6mm·r／min)动态性能试验，通过试验确定了最佳的保持架兜孔间隙和引导间隙，为超高速机床主轴轴承设计提供了依据。更多还原

【Abstract】 Considering ceramic hybrid ball bearing as an object of study, the simulative dynamics on high speed ball bearing is analyzed; a simulated dynamics analysis model used for hybrid ball bearings and full steel made ball bearings is established, which can be used to forecast various bearing dynamic performances. Based on various inertia forces of high-speed angular contact ball bearings and the variety reciprocity among all of the structure components, a simulated dynamics physics model is established and 6n+8 equations are cited and solved out. The reciprocity between lubricant and bearing components and radial play are also considered. According to the model, with the help of VB and FORTRAN77, the simulated dynamics analysis programming for high-speed ceramic ball bearings are developed out. By which, all of the dynamic performance parameters, such as bearing’s distortion, rigidity, heating ratio and friction torque, etc., can be calculated. At the same time, the load distribution in bearing interior, centrifugal, top torque can also be calculated. As a typical example, the variety dynamic performances of B7005C/HQ1P4 bearing are analyzed under the oil mist lubrication. Using our own developed high-speed electrical spindle, the tests for bearing dynamic performances are taken under different rotation speed, different load, different lubrication and super high speed. Through the testing, the best cage pocket clearance and guide clearance are determined, which provides basis for super high speed machine tool bearings design.更多还原