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机械主轴热特性分析
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湖北省重大科技创新计划(CXZD2018000108)


Thermal Characteristics Analysis of Mechanical Spindle
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    摘要:

    以机械主轴为研究对象,运用HyperMesh、Abaqus等有限元分析软件,研究了机械主轴的热特性。通过确定热分析的边界条件、计算皮带轮以及轴承的发热量,建立了机械主轴热力学有限元模型,并通过计算得到了其稳态热、温升变化以及温度场分布情况。结果表明:仿真计算得到的温度场与实验测得的温度分布数据基本吻合,因而采用有限元方法可以较准确预测机械主轴温度变化,皮带轮处的发热在机械主轴中是不能忽略的。而热变形分析显示机械主轴的变形较小,证明该机械主轴结构设计合理。

    Abstract:

    Selected the mechanical spindle as the research object, software of HyperMesh and Abaqus based on finite element method (FEM) were used to study the thermal characteristics of the mechanical spindle. Based on determining the boundary conditions of thermal analysis and calculating the heat value of belt pulley and bearing, the steadystate thermal, and the variation of temperature as well as the distribution of temperature field were obtained through calculating the mechanical spindle’〖KG-*2〗s finite element model. Results shows that the experimental data of temperature and simulation result reach a good agreement, which means that the FEM can predict mechanical spindle temperature changes accurately,and the heat value of belt pulley in mechanical spindle can not be ignored. According to the thermal deformation analysis, the mechanical spindle has a small deformation, which proves the structural design is reasonable.

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吴超群,华伟杰,周奇,徐全军.机械主轴热特性分析[J].机床与液压,2018,46(23):156-159.
. Thermal Characteristics Analysis of Mechanical Spindle[J]. Machine Tool & Hydraulics,2018,46(23):156-159

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  • 在线发布日期: 2019-07-09
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