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卷取辊(TUR)是非晶带材自动化生产线中的一个关键部件,卷取辊的起卷效率决定带材质量及生产效率.由于起卷过程中非晶带材运行线速度较高且受到不同的阻力,卷取辊需要提供足够的吸附力用来满足不同的阻力条件.根据带材生产工艺需求,设计出钕铁硼(Nd Fe B)永磁吸附型磁性卷取辊结构.利用有限元方法对不同起卷卷取步骤中的磁吸附特性进行分析,得到了磁性卷取辊在不同气隙下各个方向上的磁吸附力变化趋势云图和磁场分布.计算结果表明,气隙小于30 mm时,在给定的空间范围内,磁性卷取辊磁吸附力能够克服各个阻力完成起卷卷取过程.最终,通过现场实验验证了不同气隙下的最大磁吸附力与仿真结果变化趋势一致.
The take-up roller (TUR) is a key component in the automated production line of amorphous strip, which determines the strip quality and production efficiency. , The take-up roller needs to provide sufficient adsorption force to meet the different resistance conditions.According to the demand of strip production process, a NdFeB permanent magnetic adsorption type magnetic take-up roll structure is designed.Using the finite element method Methods The magnetic adsorption characteristics in different winding rewinding steps were analyzed and the trend of magnetic attraction force and magnetic field distribution of magnetic rewinding roller in all directions under different air gaps were obtained.The calculation results show that the air gap is less than 30 mm , The magnetic attraction force of the magnetic take-up roller can overcome the various resistances to complete the winding-up process within a given spatial range.Finally, the field experiments verify that the maximum magnetic attraction force under different airgaps agrees with the simulation results .