f1-f7（）.docVIP

f1-f7（） F1 - F7 finishing mill group Formula 1 - F7 precision rolling mill group is used to roll the middle billet of the roughing and cutting head into the finished product specification. The middle blank thickness is 25 ~ 50 x 700 ~ 1350mm, and the finished product specification is 1.2 ~ 20x700 ~ 1350mm. 1) structure: Finishing mill finishing mill group consists of the following parts: F1, F2 finishing mill, F3 finishing mill and finishing mill of F4 row, finishing mill column F5, F6 finishing mill, F7 finishing mill, F1 - F7 transmission device, work roll roll changing device, support roll roll changing device, F1 - F7 looping and guide device, F1 - F7 fence on the piping, F1 - F7 platform and platform piping, etc. F1 ━ F7 finishing mill column is the level of four roll not reversible rolling mill, is composed of seven rolling mill, a continuous type is decorated, the distance between the frame 5500, known as F1 ━ F7 rack. Mill by frame assembly, work roll assembly, backup roll assembly, pressure device, bending roll device, balancing device, mobile plate device, transmission device, walk, piping, close to switch, etc. The transmission device consists of main motor, motor coupling, reducer, middle and indirect axle, gear base and roll joint shaft. F5 - F7 has no speed reducer. The roller changing gear is made up of transverse train, fixed track and electric trolley. The support roller changing gear is composed of fixed slip and push-pull hydraulic cylinder. The living jacket and guide device are composed of hydraulic living sleeve, work roll cooling, support roller cooling, rack cooling, entrance guide, exit guide, guide beam, cross-jet, etc. Equipment structure and function Upper supporting roller balancing device Position and function: the balancing device of upper supporting roller is installed at the top of the arch of the arch. The piston rod of the hydraulic cylinder is connected with two guide rails through the rail beam, which is distributed on the inlet