Key Components Of Loader Working Device Of Dynamic Analysis And Fatigue Analysis

loader is widely used in highway, railway, construction, water and electricity, port and mine engineering machinery, with fast working speed, high efficiency, flexibility, easy operation and so on. However, the working environment of the loader is poor, and the working condition is changeable, which affects the strength, stiffness and dynamic characteristics of the loader, easy to cause damage to parts, and even parts of the fracture, the loader working device has a serious impact on the service life, especially for the loader cylinder has a serious impact on the service life, So it is important to calculate the service life of loader working device, especially the service life of the cylinder.Finite element analysis and fatigue life analysis is the main means of modern design method, stochastic computer technology rapid development, computer aided design has become the main means and methods of contemporary product design, to reduce the product development cycle, improve the quality of products, extend product life has important significance. In this paper, through the structural analysis of the working device of loader, a detailed introduced working principle and structure characteristics of the machine working device of loader, and the combination of loader working machine bucket of a loader for mechanical analysis and calculation of the loader working mechanical condition, And according to the loading the real dimensions of the machine through the establishment of 3D modeling software Pro/E loading machine working device of the 3D model for the subsequent mechanical analysis pave the way; secondly, according to the theory of multi body dynamics binding dynamics analysis software ADAMS of the working device of loader for kinematic and dynamic analysis, obtained the loading shovel tip trajectory and loading the kinematic and dynamic characteristics of machine parts and components of the hinge point that loading curve of the time history of the mechanics of the location of the machine; Again, according to the theory of finite element analysis and the finite element analysis software ANSYS of loading machine key components of static analysis of cylinder of maximum stress and to verify the strength conditions; then, according to the dynamic vibration theory combined with finite element analysis software ANSYS, obtained loading modal characteristics of the key parts of the machine, and calculated the natural frequency for the subsequent loading machine cylinder design of the vibration dynamics to lay the foundation; Finally, according to the theory of fatigue analysis, combined with the fatigue reliability analysis software MSC fatigue loading machine key components of cylinder were fatigue life reliability analysis, that loading machine cylinder life nephogram and fatigue strength characteristics, verifies the reliability fatigue life of organs and key spare parts and accessories cylinder loading.In summary, based on the analysis of computer aided engineering technology, the structural characteristics, kinematics, dynamics, finite element statics, modal analysis and fatigue reliability life of loader working device were analyzed. The results of the analysis, to improve the loading machine product quality, improve product quality, relationship product development cycle and reduce the cost, increase of the loaded machine service life is of important significance. The analysis is of high academic value and practical significance, for enterprises in the future of loading machine product development has certain guiding value.