Assessment of the impact of the structural and technological uniformity of the working equipment of road construction machines on the technical and economic indicators of their repair

Abstract

Using the example of the technological process of repairing hydraulic hammers, the article discusses the issues of formalization of the first stage of technological preparation of production – the analysis of structural and technological uniformity of products. The coefficient of structural and technological uniformity is proposed, its semantic content is revealed and the calculation method is given. Experimental data on the technological processes of repairing hydraulic hammers of seventy models, the grouping of products according to structural and technological features and the assessment of the coefficients of their structural and technological uniformity are presented. The transformation of the technological processes of hydraulic hammer repair with an increase in production volumes is considered. The complexity of repairs for production programs from current to increased by 4 times is calculated. The reduction of labor intensity is justified due to the specialization of workplaces (limiting the number of hydraulic hammer models repaired at one workplace) and the use of more productive technological equipment. Two-factor power-law dependences of the coefficients of structural and technological uniformity of hydraulic hammers on their mass and the repair production program are obtained.