Thermally Induced Preload and Stiffness Calculation for Machine Tool Spindle Bearing

doi:10.7652/xjtuxb201502019

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Thermally Induced Preload and Stiffness Calculation for Machine Tool Spindle Bearing

更新时间：2025-07-09

- Thermally Induced Preload and Stiffness Calculation for Machine Tool Spindle Bearing
- Vol. 49, Issue 2, Pages: 111-116(2015)
- 作者机构：
  
  西安交通大学机械制造与系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201502019
  CLC： TH113;TH117
- Online First：10 February 2015，
  
  Published：2015
- 稿件说明：
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Thermally Induced Preload and Stiffness Calculation for Machine Tool Spindle Bearing[J]. 2015, 49(2): 111-116.
DOI：

Thermally Induced Preload and Stiffness Calculation for Machine Tool Spindle Bearing[J]. 2015, 49(2): 111-116. DOI： 10.7652/xjtuxb201502019.

摘要

为了研究机床主轴系统非均匀温升带来的热位移对轴承预紧力和动刚度的影响

建立了一种机床主轴系统热机耦合模型。在分析轴承摩擦损耗影响因素的基础上

确定了系统热载荷和边界条件

采用有限元方法求解了机床主轴瞬时温升和热变形

根据轴承载荷-位移关系式求解轴承的热诱导预紧力

基于改进的Jones模型计算了轴承径向刚度。最后

实验测定轴承预紧力

分析预紧力影响因素。理论计算与实验结果表明:在定位预紧下

主轴、隔圈、轴承座和轴承热位移会导致轴承预紧力和径向刚度的增加

且随着初始预紧力、转速和环境温度增加

预紧力变化幅值也增加。此外

局部冷却引起热位移的变化

从而改变轴承预紧力和径向刚度的变化规律。

Abstract

To investigate the influence of thermal displacement due to non-uniform temperature rising in machine tool spindle system under bearing preload and dynamic stiffness

a thermo-mechanical coupling model is established. The factors to influence bearing friction loss are analyzed and thermal load and boundary conditions of machine tool spindle system are calculated. And the instantaneous temperature distribution and thermal deformation of machine tool spindle are solved by FEM. According to the bearing load-displacement equation

thermal induced preload is acquired

and the radial stiffness of bearing is evaluated by improved Jones' quasi-statics model. The laws and main influence factors of thermally induced preload are tested and analyzed. The theoretical and experimental results indicate that thermal displacements of spindle

baffle

bearing housing and bearing strengthen preload and bearing stiffness of the rigidly preloaded bearing; the increasing initial preload

rotating speed and environmental temperature extend the changing preload amplitude; bearing preload and stiffness are highly sensitive to local cooling which changes thermal displacement.

关键词

Keywords

references

BOSSMANNS B, TU J F. A thermal model for high speed motorized spindles [J]. International Journal of Machine Tools & Manufacture, 1999, 39(9): 1345-1366.

XU Min, JIANG Shuyun, CAI Ying. An improved thermal model for machine tool bearing [J]. International Journal of Machine Tools Manufacture, 2007, 47(1): 53-62.

CHIN C H, JANG J Y. 3-D numerical and experimental analysis of a built-in motorized high-speed spindle with helical water cooling channel [J]. Applied Thermal Engineering, 2008, 28(17/18): 2327-2336.

LIN CHIWEI, TU J F, KAMMAM J. An integrated thermo-mechanical-dynamic model to characterize motorized machine tool spindles during very high speed rotation [J]. International Journal of Machine Tools Manufacture, 2003, 43(10): 1035-1050.

JIANG S, MAO H. Investigation of variable optimum preload for a machine tool spindle [J]. International Journal of Machine Tools Manufacture, 2010, 50(1): 19-28.

杨佐卫, 殷国富, 尚欣, 等. 高速电主轴热态特性与动力学特性耦合分析模型 [J]. 吉林大学学报: 工学版, 2011, 41(1): 100-105.

YANG Zuowei, YIN Guofu, SHANG Xin, et al. Coupling analysis model of thermal and dynamic characteristics for high-speed motorized spindle [J]. Journal of Jilin University: Engineering and Technology, 2011, 41(1): 100-105.

叙永向, 胡建辉, 胡任之, 等. 永磁同步电机转子涡流损耗计算的实验验证方法 [J]. 电工技术学报, 2007, 22(7): 150-154.

XU Yongxiang, HU Jianhui, HU Renzhi, et al. An experimental verification method of calculation for rotor eddy current losses in PMSMs [J]. Transactions of China Electrotechnical Society, 2007, 22(7): 150-154.

HARRIS T A. Rolling bearing analysis [M]. 5th ed. New York, USA: John Wiley Sons, 2001: 135-140, 190-191.

PALMGREN A. Ball and roller bearing engineering [M]. Philadelphia, USA: SKF Industries Inc., 1959: 34-41.

JONES A B. A general theory for elastically constrained ball and radial roller bearings under arbitrary load and speed conditions [J]. Journal of Basic Engineering, 1960, 82(2): 309-320.

李松生, 陈晓阳, 张钢, 等. 超高速时电主轴轴承的动态支承刚度分析 [J]. 机械工程学报, 2006, 42(11): 60-65.

LI Songsheng, CHEN Xiaoyang, ZHANG Gang, et al. Analyses of dynamic supporting stiffness about spindle bearing at extra high-speed in electric spindles [J]. Chinese Journal of Mechanical Engineering, 2006, 42(11): 60-65.

李建栋,朱永生,熊青青,等.定压预紧主轴轴向动态刚度特性研究.2014,48(10):126-130.[doi:10.7652/xjtuxb2014 10020]

张浩,张进华,朱永生,等.外隔圈不平行度对轴承性能影响的数值分析.2014,48(8):86-90.[doi:10.7652/xjtuxb2014 08015]

陈晓光,徐光华,梁霖,等.一种电流弱信号特征提取方法.2013,47(9):83-87.[doi:10.7652/xjtuxb201309014]

李纯洁,洪军,张进华,等.角接触球轴承动刚度的实验研究.2013,47(7):68-72.[doi:10.7652/xjtuxb201307013]

田久良,洪军,朱永生,等.机床主轴-轴承系统热-力耦合模型及其动态性能研究.2012,46(07):63-68.[doi:10.7652/xjtuxb201207012]

黄东洋,洪军,张进华,等.热阻网络法在轴系温度场求解中的应用.2012,46(5):63-66.[doi:10.7652/xjtuxb2012050 11]

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