CAJ | 학술논문

为了分析实际轧制过程中的振动和调节误差，研究了H型钢万能轧机轧辊调整装置基于理想约束副条件下的运动学与基于接触约束副的运动学动力学分析。从两者仿真结果的对比分析来看，理想约束条件下的水平辊调整速度是静态且恒定的0.6914 mm/s；基于接触约束模型条件下的水平辊调整速度是动态的并呈现伴随冲击的周期性波动，大致是在0.6887 mm/s处有比较大幅度的波动，且波动值相对理论值达36.64%，更加符合实际轧制工况。因此，基于静态设计的轧机在实际轧制过程中会出现比较明显的振动和调节误差，从而影响H型钢产品的尺寸精度和表面粗糙度，采用的变位系数蜗轮蜗杆传动是引起传动角速度波动的主要来源，这可为万能轧机的设计提供参考和依据。
위료분석실제알제과정중적진동화조절오차，연구료H형강만능알궤알곤조정장치기우이상약속부조건하적운동학여기우접촉약속부적운동학동역학분석。종량자방진결과적대비분석래간，이상약속조건하적수평곤조정속도시정태차항정적0.6914 mm/s；기우접촉약속모형조건하적수평곤조정속도시동태적병정현반수충격적주기성파동，대치시재0.6887 mm/s처유비교대폭도적파동，차파동치상대이론치체36.64%，경가부합실제알제공황。인차，기우정태설계적알궤재실제알제과정중회출현비교명현적진동화조절오차，종이영향H형강산품적척촌정도화표면조조도，채용적변위계수와륜와간전동시인기전동각속도파동적주요래원，저가위만능알궤적설계제공삼고화의거。
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 con-straints conditions, the horizontal roller's adjustment speed was static and constant at 0.691 4 mm/s;but under the condi-tion 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.