???? CAD??? QQ 36296518 ??420 ??????????????θ???????????????????????????ж???θ??????????〃?????????????????????????????????θ?????????ж???????????????????с?ぁ???????????????θ????????????????????θ?????????????????????????????????????θ?????喵?????????????????????θ?????????????从???????θ???????р????ж????????φ??χ????χ???χ??????? CAD??? QQ 36296518 The Design of 420 Middle Rolling Wire Stock Mill Abstract The use of wire stock is very wide in country economy .middle rolling wire stock mill is make rough rolling billet steel more roll ,providing with raw material for fine rolling to gain various standard finish product wire rolling wire stock roll play a great role in production of wire stock ,and favorable condition for further roll of fine rolling wire stock mill. This putes draught pressure and roll torque and chooses main electric engine volume in term of the given press rules and roll putes the strength of main parts and evaluates the economy benefit of adopts the two-high rolling the burnt wood material,with the tooth profile connection shaft the analysis of all aspects of the design and calculation ,we on the performance of the equipment and the existing problems have deeper understanding ,and make the equipment in theory has been further improved. Key word:wire? Wire rod Rolling; Rolling ;Mill; Roll ???? CAD??? QQ 36296518 ?? 1??.................................................................................................. ????????? ?从?????......................................................................................................1 ????????????...................................................................................2 ???????????.............................................................................2 ???????????.............................................................................3 ??????ガ?????.................................................. ???????