The roll adjusting device of H-beam universal mill was studied based on the kinematics of ideal constraints vice and the dynamics of collision constraint. Compared the analysis among the simulation results, under the ideal constraints conditions, the horizontal roller’s adjustment speed was static and constant at 0.691 4 mm/s; but under the condition of collision model, the horizontal roller,s adjustment speed was dynamic, and at 0.688 7 mm/s up and down relatively substantial cyclical fluctuations. The fluctuation relative to the theoretical value was 36.64% and that more in line with the actual rolling conditions. Therefore, it caused more obvious vibration and adjustment error in actual rolling process, affecting the H-beam’s dimensional accuracy and surface roughness. The most important source of the angular velocity fluctuations was the use of modified coefficients for worm. The conclusions have some reference value to design the universal mill.
GUO Nian-Qin, GUO Jing, WEN Tie-Qi. , {{custom_author.name_en}}et al.
Analysis of kinematics and dynamics on roll adjusting device of H-beam universal mill[J]. Iron and Steel, 2015, 50(3): 91-95 https://doi.org/10.13228/j.boyuan.issn0449-749x.20140354