Analysis of the Influence of Wire Tension in Prestressed Wire Winding Devices

Abstract

In view of the preload problem of the preload of the ultra-high pressure mold by the prestressed wire winding device, a new type of wire tension adjustment mechanism is designed to change the tension of the steel wire to adjust the prestress size of the mold. The mechanical model analysis of the generation of steel wire tension is carried out, and the axial stress change of steel wire under different pressures, different speeds and different diameters is analyzed by finite element soft-ware. The results show that the axial stress of the steel wire has a nonlinear relationship with the speed of the steel wire, and with the increase of the speed of the steel wire, the axial stress of the steel wire first increases, reaches the peak, and then decreases and eventually tends to be stable; The axial stress of the steel wire is proportional to the hydraulic cylinder pressure and inversely proportional to the diameter of the wire.