Assessment of repair parts processability axial piston hydraulic drive mobile machines

Abstract

The statistical evaluation of technical condition the resources limiting parts hydromachines axial piston hydraulic transmissions. A quantitative assessment of suitable parts without repair and with his carryingand unusable parts, which are the main components in identifying, evaluating repair technological of parts is defined. The main and additional operations of repair work and their labor input which influence an indicator of repair technological effectiveness of a detail are considered, at the same time it is established that labor input of additional operations causes his decrease. Considering that repair technological effectiveness of details is caused by technical training of specialized repair shop which includes the choice and introduction of the main technological process repair of details, security of production division with the capital equipment and the equipment qualified by workers calculations of coefficients economic feasibility of repair a detail, complexity of the equipment, qualification of works are carried out. It is established that the coefficient of economic feasibility repair of a detail is formed taking into account the cost of a new detail and cost of her repair which depends on the accepted way renewal of a working surface, at the same time reduction of prime cost increases coefficient expediency of repair a detail and an assessment of its repair technological effectiveness. Calculations of coefficient complexity the equipment are carried out taking into account the analysis of cost the capital equipment which is used at production of a detail and its repair. Its value has ambiguous influence on indicators of repair technological effectiveness a detail. So, his increase characterizes the low cost of the equipment which is involved in repair production which positively influences repair technological effectiveness of a detail. At the same time reduction cost of the repair equipment is substantially caused by its insufficient quantity, and simplicity of the realized designs, and leads to growth of labor input of repair work, so and cost repair which influences reduction coefficient of expediency repair of a detail. Calculations coefficient qualification of works have indicated expediency of providing production divisions with mechanics not below the fifth category that will also increase repair technological effectiveness of details, at the same time existence in a technological chain of workers with the lowest category causes her reduction.