TECHNOLOGY OF CENTRALIZED REPAIR OF HYDRAULIC HAMMERS ACCORDING TO TECHNICAL CONDITION
The article is devoted to the formation of technological routes for centralized repair according to the technical condition (CRTC) of hydraulic hammers at the enterprise of the Moscow company "Tradition-K", which is a leading company in the field of production of hydraulic hammers and carries out branded repairs of manufactured equipment. The need to implement the CRTC is due to the fact that the enterprise carries out repairs according to the technical condition, but it incurs a large expenditure of time and money to determine the technical condition of the repaired products. In the presence of the customer, a preliminary inspection of the repair object is performed and a defect report is compiled. After disassembly, the components of the product are loaded into a container and sent to the warehouse of the repair fund, where the customer’s representative is expected to agree on the scope, content of repair work, cost estimates and the selling price for the company's services. The variety of the content of the performed repairs introduces uncertainty in the planning of the loading of technological equipment, performers, material and technical support of production and prevents the increase in the serial production and the use of progressive industrial repair technology. The main direction of improving production in this case is increasing its serial production. The theoretical basis for solving this problem is the routing technology of parts repair proposed by Koshkin K.T.. The article analyzes the advantages of this technology, as well as the reasons that prevent its use in the case under consideration. The conclusion is made about the expediency of using CRTC, in the development and industrial application of which the authors of this article participated. The results of systematization and processing of information on the identified defects, the composition and content of work on the repair of hydraulic hammers, which was obtained over the past three years, are presented. 73 repairs of the Delta F-5 hydraulic hammer were identified, for which the calculation was made. The analysis of the correlation between the jointly replaced parts showed that for the Delta F-5 hydraulic hammers only one pair of parts is closely connected: the firing pin and the sleeve. The interconnection of parts frees from the need to defect both parts and allows combining the work on their replacement into one work. The obtained results limited such possibilities and did not allow to significantly reducing the studied set of repair works. Subsequent studies made it possible to combine 73 repairs into 5 technological routes. The main result of solving this problem is the achievement of the possibility of fundamental changes in technology and the organization of production, which is expressed in an increase in its serial production and is accompanied by an increase in labor productivity and the quality of repairs.