Research of the influence of the quality of repair and restoration works on the efficiency of urban passenger transport

Abstract

This article presents the results of a study of the work of urban passenger transport (UPT) in the conditions of densely populated cities of the Republic of Kazakhstan, in particular Astana and Karaganda. As well as the state of the repair and restoration production of bus fleets (BF) and its impact on the quality of the organization and efficiency of the UPT. As a result of the study, it was revealed that one of the malfunctions, which is cyclical in nature, is the wear of the hub lugs of the rear axle of the chassis of buses, in particular IVECO buses, which make up a large proportion of rolling stock. It is established that the malfunction of the chassis assembly negatively affects the level of technical readiness and the coefficient of access to the rolling stock line, as well as the level of traffic safety on the roads.

The technology of repair and restoration of worn parts of the hub of the rear axle of the chassis of IVECO buses in the conditions of the BF was investigated. It was revealed that the existing technology of hub repair in the BF by restoring the lugs is imperfect, and therefore the inter-repair mileage is not large enough.

To solve this problem, it is necessary to develop a new technology for repairing and restoring worn hub lugs, which ensures high hardness and wear resistance of the restored surfaces.