Evaluation of the structural and technological uniformity of hydraulic hammers during their repair

The article discusses methods for assessing the structural and technological uniformity of hydraulic hammers, the need for which arises during the technological preparation of multi-nomenclature production. In the complex of technologists' works, the standards of the unified system of technological preparation of production (ESTPP) provide for a constructive and technological classification, including the systematization of products according to the main features of both constructive and technological similarity. Product classification is the first step in creating unified technological processes.

Unlike other stages of the TPP, these works do not have a formalized methodological support, but are based on the experience and intuition of specialists. The article attempts to quantify the properties of the structural and technological uniformity of products. The coefficient of structural and technological uniformity of products proposed by the authors makes it possible to assess the feasibility of expanding the product range, taking into account the use of unified technological processes. It is shown that the known coefficient of reduction of products in terms of labor intensity is a special case of the coefficient proposed in this article, when the structural and technological uniformity of products is not taken into account.

The values of the coefficients of structural and technological uniformity were calculated for the most common models of domestic hydraulic hammers based on the actual data of the current production. The scientific novelty of the presented results consists in the fact that the authors proposed and justified a quantitative assessment of the properties of the structural and technological uniformity of products, which contributes to the methodological support of the most difficult stage of the TPP - the classification of products according to the signs of constructive and technological similarity.

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