As an important part of the engine, the forging of the main and auxiliary connecting rod is very important to the normal operation of the main and auxiliary mechanism of the locomotive. This paper will evaluate the performance of the main and auxiliary link forging in the main and auxiliary mechanism of locomotive.
Mechanical property evaluation
Strength and stiffness: When the main and auxiliary connecting rod forgings bear the complex load of the engine, they must have sufficient strength and stiffness to prevent breakage and deformation. The evaluation of its mechanical properties should pay attention to the key indexes such as yield point, tensile strength and fatigue strength.
Wear resistance: The main and auxiliary connecting rod forgings will have friction with adjacent parts during use, and good wear resistance can extend its service life. When evaluating wear resistance, factors such as hardness, surface treatment and lubrication conditions of the material should be paid attention to.
Impact resistance: the engine will be affected by various external impact loads during the working process, and the main and auxiliary connecting rod forgings should have good impact resistance to ensure its stability during use.
Dynamic performance evaluation
Force transmission performance: The main function of the main and auxiliary connecting rod forging is to transmit torque and force, and its force transmission performance directly affects the overall performance of the engine. When evaluating the force transfer performance, the stress distribution, deformation and torque transfer efficiency should be paid attention to.
Motion coordination: In the main and auxiliary mechanism of the locomotive, the motion coordination of the main and auxiliary connecting rod forging is crucial to ensure the normal operation of the engine. When evaluating motion coordination, we should pay attention to the parameters such as trajectory, speed and acceleration of the connecting rod in the working process.
Job stability evaluation
Thermal stability: the engine will produce a lot of heat during the working process, and the main and auxiliary connecting rod forging should have good thermal stability to adapt to the high temperature environment and maintain stable mechanical properties. When evaluating thermal stability, we should pay attention to the high temperature strength, thermal expansion coefficient and thermal fatigue resistance of the material.
Corrosion resistance: oil, gas and other media inside the engine may have a corrosive effect on the main and auxiliary connecting rod forging. Therefore, when evaluating its performance, attention should be paid to the corrosion resistance of the material and the effectiveness of anti-corrosion measures.
Environmental adaptability: When the engine works in a variety of harsh environments (such as high temperature, high humidity, plateau, etc.), the main and auxiliary connecting rod forging should have good environmental adaptability to ensure its stability and reliability during use.
Economic evaluation
Cost effectiveness: The cost of the main and auxiliary connecting rod forging includes material cost, processing cost, research and development cost and many other aspects. The evaluation of its economy should pay attention to the rationality of manufacturing cost and selling price, as well as the size of enterprise profit margin.
Maintenance and repair: The main and auxiliary connecting rod forgings need regular maintenance and repair during use. The evaluation of its maintenance cost should pay attention to factors such as maintenance cycle, repair cost and spare parts supply.
Sustainability: With the improvement of environmental protection awareness, the sustainability of main and auxiliary link forgings should also be evaluated. This includes an assessment of the source of raw materials, energy consumption and emissions during production, and the impact of products on the environment after their life cycle.
To sum up, it is a comprehensive evaluation process to evaluate the performance of the main and auxiliary connecting rod forgings in the main and auxiliary mechanism of locomotive. Enterprises should fully consider the requirements of mechanical properties, dynamic properties, working stability and economy when carrying out product design, production and marketing to ensure that the main and auxiliary connecting rod forgings have good performance and improve the stability and reliability of the whole machine.
