Research on a new hydraulic rolling shear shearing mechanism and its control system

摘要

According to the theory of rolling shear, a new composite connecting rod mechanism driven by cylinders is invented. The shearing mechanism moving curves and equilibrium equations are calculated to build the transfer function of unsymmetrical valve controlling unsymmetrical cylinder. The key points of the track of shearing mechanism, the pressure and position of cylinders are analysed when the rolling shear shearing the plates in different thickness by simulation. The data from the plant suggest that the new mechanism can meet the demands. Using unsymmetrical valve to control the unsymmetrical cylinder can achieve the position control for the system with high speed, massive flow and heavy load and can reduce the reversing impact.