Roller Straight Process Model And Force Analysis Of Roller System Research

Curvature integral steel materials are an important material foundation for China’s modernization development.The straightening machine is an indispensable key equipment in the steel production process,which directly determines the product quality of the plate.With the development of technology,the production of green and cost-effective high-strength plates has increased.The emergence of high-strength plates has brought about a significant increase in straightening load,and the service life of the straightening roller system has become a factor affecting the continuous and stable production of medium and thick plates.It is necessary to study the force situation of the straightening equipment roll system,monitor its load changes,and improve its service life.Therefore,based on the analysis of the roll system load during the straightening process,this article developed a roll system load monitoring system for the straightening machine,and studied the force status of the roll system in three straightening process schemes,providing reference for the formulation of actual plate straightening schemes.(1)A calculation model for the support roller bearing seat was established through analysis of the straightening process and force analysis.The parallel roll gap straightening scheme,large deformation straightening scheme,and small deformation straightening scheme were calculated and analyzed separately.The results showed that the support roller under each work roller had the highest force in the middle and showed a decreasing trend towards both sides along the work roller body.(2)Using ABAQUS simulation software,establish a force simulation model for the entire roll system,analyze the force situation of the entire roll system during the straightening process,and determine the maximum force position on the support roller.The results show that the maximum force on the support roller bearing seat is 363.6 MPa,located in the middle of the work roller,and the forces on both ends decrease sequentially,consistent with the calculation model.The maximum stress position of the bearing seat is directly below the installation of the bearing,and the farther it is from the bearing,the smaller the stress.(3)Through Bluetooth wireless transmission,a set of wireless detection equipment for roller system stress is established.Using the laboratory 11 roller laboratory straightening machine as the platform,the force calibration test of the support roller is carried out,and the force detection of the support roller for three straightening schemes is carried out.The comparison error with the theoretical calculation results is within 15%.The results show that the roller system of the straightening machine exhibits peak load signals during the biting and flapping stages,which is the main cause of bearing seat damage.During the straightening process,the load tends to stabilize,and the theoretical calculation,simulation,and experimental results show good consistency,verifying the reliability of the wireless monitoring equipment and the accuracy of the support roller mechanical calculation model.