張力減徑機不同傳動系統(tǒng)剛度及響應特性對比分析

Comparative Analysis of Rigidity and Response Characteristics of Different SRM Drive Systems

摘要: 分析了張力減徑機內傳動和外傳動兩種形式軋輥機架的強度及軋制范圍，集中差速傳動、單機架傳動和單輥傳動3種典型結構傳動形式的系統(tǒng)剛度及響應特性，各種傳動形式對機架間距的影響及適用的機組范圍。對比分析認為：Φ140 mm以上機組適合采用外傳動形式的張力減徑機；對于同時設置張力減徑機和定徑機的無縫鋼管機組，采用內傳動形式的張力減徑機為宜；生產Φ140 mm以下鋼管時，選用內傳動形式為宜。

Abstract: Analyzed are the strengths and product ranges of two different stretch reducing mill（SRM） roll stands， i.e.， the internally-driven roll stand and the externally-driven roll stand， and the system rigidities and response characteristics of three typical types of drive systems，i.e.，the centralized differential drive system，the individual stand drive system and the individual roll drive system.Also analyzed are the influence on roll stand space by each of them，and the pipe mills they are separately applicable to.As a result，it is identified that the externallydriven SRM is suitable for seamless steel pipe rolling plants with OD sizes above 140 mm，while the internally-driven SRM is suitable for rolling plants to be equipped with both stretch reducing mill and sizing mill.And in case of rolling plants with OD sizes under 140mm，the internally-drive system is preferred.