The influence of the reinforcement of the chisel-shaped area of the ploughshare on the change in the geometric parameters of radial wear during operation

Abstract

The formation of radial wear is a decisive factor in the removal of shares from service, i.e. this type of wear refers to the characteristics of the limiting state of the part. It is noted that the dynam-ics of its formation and development in a certain way affects the development of technical processes for the restoration of plowshares. However, the process of wear, in this case, cannot be considered fully studied, therefore the work is devoted to the study of the above issue. Experienced plowshares were used for research: as delivered; with a reinforced chisel-shaped part with elliptical rollers; with a reinforced chisel-shaped part with rollers perpendicular to the field edge; with a reinforced chisel-shaped part, rollers perpendicular to the field cut and surfacing of the buried part for a length of about 100 mm. As a result of experiments, the dependences of the change in the width of radial wear in the function of operating time and changes in the depth of radial wear in the process of plowing were obtained. An explanation of the process of wear during the formation of radial wear is given for all investigated technological options. It was revealed that the change in the geometric pa-rameters of radial wear (width and depth) in the process of origin and development has a single character and is the same for all technological variants of hardening with surfacing reinforcement, while the greatest resistance to the formation of this defect is provided by reinforcement by forming beads perpendicular to the trajectory of soil movement with surfacing the deepening part to a length of 100 mm.