| 不同载荷工况下机床主轴预紧力选取的数值分析方法 |
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| 引用本文： | 刘显军,洪军,刘志刚.不同载荷工况下机床主轴预紧力选取的数值分析方法[J].计算机辅助工程,2011,20(2):90-94. |
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| 作者姓名： | 刘显军 洪军 刘志刚 |
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| 作者单位： | 1. 中国工程物理研究院总体工程研究所,四川绵阳621900;西安交通大学机械制造系统工程国家重点实验室,西安710049
2. 西安交通大学机械制造系统工程国家重点实验室,西安,710049 |
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| 基金项目： | 国家自然科学基金(50935006)；国家高技术研究发展计划（“八六三”计划）(2009AA04Z147)；国家科技重大专项(2009ZX04001-022) |
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| 摘 要： | 为研究预紧力对机床主轴的影响,提出在不同载荷工况下机床主轴预紧力选取的数值分析方法.计算得到预紧力与轴承刚度的关系,在轴系结构有限元模型中设置不同预紧力下的轴承刚度值,通过静力学分析求解轴系变形和刚度；计算得到预紧力与轴承发热量的关系,在轴系热分析有限元模型中设置轴承热源,通过传热分析求解主轴温升.计算结果表明,该方法...
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| 关 键 词： | 机床 主轴 预紧力 刚度 温升 数值分析 |
| 收稿时间： | 3/9/2011 12:00:00 AM |
| 修稿时间： | 3/9/2011 12:00:00 AM |
Numerical analysis method on preload selection for machine tool spindle under different load conditions |
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| liuxianjun,HONGJUN and liuzhigang.Numerical analysis method on preload selection for machine tool spindle under different load conditions[J].Computer Aided Engineering,2011,20(2):90-94. |
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| Authors: | liuxianjun HONGJUN and liuzhigang |
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| Affiliation: | 1.Institute of Systems Engineering,China Academy of Engineering Physics,Mianyang 621900,Sichuan,China; 2.State Key Laboratory for Manufacturing Systems Engineering,Xi＇an Jiaotong University,Xi＇an 710049,China) |
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| Abstract: | To study the effect of preload on machine tool spindle, a numerical analysis method on preload selection for machine tool spindle under different load conditions is proposed. The relationship between preload and stiffness of bearing is obtained by calculation, the bearing stiffness under different preload is set in the finite element model of shaft system, and the deformation and stiffness of shaft system are calculated by statics analysis; the relationship between preload and calorific value of bearing is obtained by calculation, the heat sources of bearing are set in the finite element model of thermal analysis of shaft system, and the spindle temperature rise is solved by heat transfer analysis. The calculation results indicate that the method can analyze the effect of preload on spindle performance at design stage, and the appropriate preload of spindle under different load conditions can be determined according to the effect. |
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| Keywords: | machine tool spindle preload force stiffness temperature rise numerical analysis |
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