Determine The Key Structure Parameter And Cuting Process Simulation Of The Double Eccentric Swing Fling Shear

Flying shear is very important in the metallurgy industry .Its main role is to cut therunning rolled pieces into the specified lengths. The performance of the flying shear willdirectly affect the rate of production, just rate and settle the qualified rate of the steel mill.This paper studied a double eccentric rocking fly shears after rough mill in thecontinuous steel rolling production of one steel factory, analyzed the structuralcharacteristics of the double eccentric crank swing flying shears. As the shearing clipperbody with two degrees of freedom and only a original moving part, the horizontal speed ofthe blade is qualitatively derived in theory, provided the theoretical basis for optimizationof the eccentricity of the crank.The modeling of flying shear was established in ADAMS,and its kinematic simulation was analyzed as well. When the feed rate of rolling is 2 m/s,and up-down cutting blades touch the rolling and there is a great impact on the up-downcutting blades and big noise, which is the main impact on the normal production. To solvethese problems, the eccentricity crank flying shear machine was optimized, and a set ofoptimal parameters were obtained. After the analysis of flying shear based on the optimalparameters, it is found that the impact of the motion of the rolling on the blade is small,which can be negligible. The parameters of the up-down cutting blade on the optimizeddouble eccentric rocking fly shears were imported into Deform software. In the Deformsoftware, the influence of blade clearance and the blade’s slope angle on the shears forcewere analyzed, and the maximum of cut force of the blade during cutting process was alsogained. The maximum shear force and the corresponding lateral force were analyzed aswell through the simulation. The force of the crank was calculated when the shear force ofthe blade reached maximum. Before selecting the appropriate brake and clutch accordingto the force of the crank and the control theory of the brake and clutch, the control theoryof the brake and clutch was analyzed.In this paper, the kinematic simulation, optimization and finite element simulation arebased on the corresponding theory to solve practical problems. The results for thetransformation of the double eccentric crank swing flying shear provide a theoreticalguidance.