連軋管機(jī)芯棒支撐機(jī)架改造設(shè)計(jì)

Design for Modification of Mandrel Bar Steadier of Mandrel Pipe Mill

摘要: 分析了連軋管機(jī)芯棒支撐機(jī)架的同心連桿機(jī)構(gòu)；針對某連軋管機(jī)為擴(kuò)大規(guī)格范圍進(jìn)行改造后芯棒支撐機(jī)架無法適應(yīng)改造要求的情況，通過改變主動(dòng)輥支撐位置，加大主動(dòng)臂長度，對芯棒支撐機(jī)架進(jìn)行改造；并對改造前后的芯棒支撐方案進(jìn)行仿真分析。分析結(jié)果表明：改造后的芯棒支撐機(jī)架可以很好地適應(yīng)加重芯棒，滿足擴(kuò)大產(chǎn)品規(guī)格改造的要求。

Abstract: Analyzed in the paper is the concentric linkage mechanisms of the mandrel bar steadier of the mandrel pipe mill. Addressing the problem that after a product mix expansion-aiming modification of a certain mandrel pipe mill，its mandrel bar steadier fails to meet the modification requirement，the bar steadier proper is modified by means of changing the supporting position of the drive roller，and increasing the length of the drive arm. Furthermore，a simulation analysis of the pre-modification bar supporting scheme and the post-modification bar suppor-ting scheme is performed. As a result，it is revealed that the modified bar steadier is well suitable for the heavier mandrel bars so as to meet the requirements of the product mix expansion-aiming modification of the mill line.