Structure Analysis And Optimization Of Axial Rolling Assembly Of Radial-axial Ring Rolling Mill

Radial-axial ring rolling mill is a kind of plastic processing equipment, radial and axialrolling force is applied to the hot ring member at the same time, which enables the ringmember to generate successive local plastic deformation. Radial-axial ring rolling mill is acomplex structure, high degree of automation, large heavy-duty CNC equipment. It usuallyuse the horizontal fuselage structure to rolling the large ring.In this paper, a model radial-axial ring rolling mill as an object of study, using ANSYSto analyze axial rolled institutions assembly, for thermal analysis of the taper roller, UsingANSYS Workbench optimize rack. The main contents are as follows:Firstly, when create the model, it is necessary to conduct a study of the shape of thecontact surface between the tapered roller and the ring member. By consulting literature,create equations of the contact surface and identify the factors that affect the shape of thecontact surface.Secondly, using Solid Works to establish the various parts of the model and getintegration assembly of the axial rolling institutions of radial-axial ring rolling mill.Thirdly, import the model into ANSYS, Using Solid92unit to mesh the model andestablish21contact pairs. Analysis of the force of axial rolling, using the theoreticalknowledge of mechanics to calculate the thrust of axial rolling institutions depressed cylinderand balanced cylinder, and then applied to the model constraints and force. Deformation anglewas defined and put forward the method how to solve the deformation angle. Using ANSYS,Finite element analysis model was established through processing contact and constraints andloads，then axial rolling assembly was analyzed and got the distribution map of axial rollingassembly and its parts. The result shows that deformation angle is only0.041°and themaximum stress of various components is less than the yield limit, so ring rolling mill is safe.Fourthly, Using ANSYS APDL language rotating the temperature load applied on thecone roller, temperature load turned105laps around the taper roller cone. The cone rollertemperature field and thermal stress field finite element analysis to obtain cloud pictures ofcone roller temperature field and thermal stress cloud. The analysis results show that the taper roller temperature will eventually reach a steady state, the maximum temperature reached367℃is no longer rising, the maximum thermal stress occurs at the location of the tapered rollerand the bearing contact, the maximum heat stress is far less than the yield limit, the hightemperature of the ring member The cone roller meet the strength requirements.Fifthly, topology optimization on the rack, the rack weight reduction of11.8%.Usingoptimized results re-modeling the rack. The re-optimized model was analyzed. The resultsshow that the optimized rack stiffness and strength still meet the requirements.In summary, the stiffness strength analysis and optimization of the axial rolling bodies ofradial-axial ring rolling mill is important, this is a guiding significance for the design of thering rolling machine.