高速木工机械电主轴热态特性分析

Thermal Characteristic of High Speed Motorized Spindle for Wood-Working Machines

介绍了高速木工机械电主轴的特点,分析了高速木工机械电主轴单元的热变形机理.建立了某型高速木工机械电主轴热态特性有限元分析模型,利用ANSYS进行了稳态温度场分析,并利用分布加载瞬态热分析模拟了机床的实际工作情况,得到了电主轴的温度场分布情况,为有效控制电主轴的温升提供了理论依据.在分析结果的基础上,提出了改善电主轴热态特性的措施,为电主轴冷却结构设计提供了参考.

The structure characteristics of high speed motorized spindle for wood-working machines are introduced and the mechanism of thermal deformation of motorized spindle is analyzed.The finite element analysis model of high speed motorized spindle for wood-working machines thermal characteristics is built.The static temperature field is calculated using software ANSYS.The real working conditions are simulated by step loaded transient thermal analysis and the temperature rising trend is got which can be used for temperature control of motorized spindle.By the result of simulation,the main measures to improve the thermal characteristic of the high speed motorized spindle for wood-working machines are put and references to structure design of motorized spindle are offered.