The Manual Hydraulic Control Device Of Steel Converter Tilting Mechanism

The parallel mechanism has attracted widespread attention due to its advantages of large bearing capacity,compact structure,high rigidity,and non-cumulative position error.It has become a research hotspot and cutting-edge technology in the field of institutional science at home and abroad in recent years.The low mobility and six-DOF parallel mechanism both have their own advantages relatively.The limited DOF parallel mechanism applies increasingly in the industrial field with simple structure,decoupling easily,controlling easily and so on.The parallel mechanism used in the field of metallurgical equipment is also a new attempt.A manual hydraulic control device for the parallel tilting mechanism of steel-making converter is proposed.The device controls three hydraulic valves coordinately and drives the hydraulic cylinder of the steel-making converter to scale up proportionally.To achieve multi-directional swinging,its movement form is synchronized with the manual form.Hydraulic synchronous drive achieves the purposes of reducing the impact torque,refining high-quality steel and improve the life of the converter lining.For analyzing the force situation of this device,it is necessary to establish the spring-loaded static and dynamic mathematical model of this device.The structural design of the manual hydraulic control device was carried out.The CAD variable geometry method was used to draw the working space,and the reasonable structure size was set.The inverse mathematical model was obtained by vector method.Using the independent variable method establishs the mathematical model of kinematics.Jacobian matrix and Hessian matrix are obtained respectively.Static and dynamic models are obtained by the principle of virtual work.The force of the linear spring in the branch is analyzed,and the static and dynamic mathematical model with spring action is established and validated by constructing the virtual prototype in MATLAB.The manual hydraulic control device was subjected to force analysis.The hydraulic system between the manual hydraulic control device and the converter tilting mechanism is designed.The physical prototype of the main body of the manual hydraulic control device is set up,and the motion control is realized.