新型LG550三輥冷軋管機(jī)的研究

Research on New Type LG550 Three-roll Cold-rolling Pipe Mill

摘要: 介紹了新型LG550三輥冷軋管機(jī)的設(shè)備組成及結(jié)構(gòu),確定了軋制工藝參數(shù),研究了主傳動系統(tǒng)擺動桿系的運動規(guī)律并得出相關(guān)參數(shù);采用有限元法模擬了軋制過程中軋制力的變化規(guī)律。分析研究表明:該新型軋管機(jī)采用二輥軋管機(jī)的變斷面孔型軋制,可精確調(diào)整軋制半徑,滿足工藝要求,適合大規(guī)格無縫鋼管的軋制。

Abstract: The equipment configuration of the new type LG550 three-roll cold-rolling pipe mill is elaborated;the rolling process parameters of the mill is determined;and the motion characteristics of the swing link mechanism of the main drive system is studied to set up relevant parameters thereof. The characteristics of rolling force variation in the rolling process is simulated by means of the infinite element method. The analysis result leads to such a conclusion that the new type cold-rolling pipe mill is capable of rolling operation with variable cross-section groove of the two-roll pipe mill,and accurately-adjusted rolling radius,having been satisfactory to the process requirements,and suitable for rolling of large-sized seamless steel pipes.