Research of parameters of the technology of restoration of parts by plastic deformation

Abstract

Nowadays, there is a need to improve the technical maintenance system of agro-industrial enterprises. Increasing the service life of machines is a priority task of the technical maintenance industry. Developing progressive technologies for repairing machinery is a priority task for our country.

Achieving a high level of reliability and durability of equipment is possible only through a comprehensive solution to the tasks of the technical maintenance industry. Modern high-performance and resource-saving technologies for restoring equipment life, repairing machines and restoring worn parts are needed.

The use of plastic deformation methods in the processes of manufacturing and repairing machine parts allows for high-quality and effective shaping. Plastic deformation processes in the restoration of worn parts have limited application.There is a need for research into the application of plastic deformation in the restoration of specific parts.

Gear pumps are an important part of hydraulic systems of machines. The main malfunctions of hydraulic system units are: a drop in volumetric efficiency, deterioration of control, and violations of unit adjustments. Wear of pump bushings leads to a drop in volumetric efficiency, deterioration of control, and violations of unit adjustments. Wear of pump bushings leads to a drop in volumetric efficiency, deterioration of control, and disruption of unit regulation. It is necessary to develop an optimal technology for bushing restoration.

The paper presents an analysis of the operating conditions of oil pumps and the characteristic defects and wear of bushings. It shows that worn bushings can be restored. Working tools have been developed to carry out the process of settling worn bushings.

To carry out the process of sedimentation of worn bushings, working tools were developed. We substantiated the modes of restoration of bushings and proposed a heat treatment mode.  Аrtificial aging for 6 hours at a temperature of 180°C. It was concluded that plastic deformation could be used to restore bushings.

Keywords: pump, resource, bushing, recovery, durability, wear, volume, plastic deformation, distribution, sedimentation.