.zy8800/22/45d Type Hydraulic Supports Finite Element Analysis And Strength Optimization

As one of the three big equipment of the high efficiency and yield of coal excavating, hydraulic support's use life and reliability is very important. The damage of hydraulic support's parts will directly affect the reliability and life of hydraulic support.ZY8800/22/45D this issue in order to cover the two-column hydraulic support, for example, their analysis of the condition. Through three at home and abroad hydraulic support comparative analysis of the test standards, developed a "ZY8800/22/45D type of hydraulic support test norms," ZY8800/22/45D type hydraulic support for finite element analysis of the conditions set by the force of the border provides a theoretical Basis. SolidWorks was adopted to establish the 3D mechanical model of the ZY8800/22/45D type hydraulic support. based on the use of COSMOS of support for the finite element analysis, simulation support in the different tests., Structure optimization according to the various parts of the displacement and stress distribution, to find support and overall Structural stress the danger zone as well as the mechanical stiffness of the structure of the weak parts. DBT and imported through the same type of support were compared to determine the structure of different support strength of steel materials ratio, so that the force support and strength have improved in the support reduced the weight and manufacturing costs at the same time, It is not only satisfed the capability requirement, but also ruduced the cost and shorten design and manufacture cycle and reduce costs reasonable.By optimizing the structure after the manufacture of prototype stood at 400,000,000 pressure test aircraft (1.5 times the national standard),The use of coal mine normal, safe and reliable, thus ensuring the normal work of the coal mining area, to meet the technical requirements of the contract. Through the study of the subject, drew the following conclusions:1 The highest intensity of support for the distribution of the performance of local, regional presence, was "stress concentration". As a result, from the cost savings, no set of support use of high-strength steel plate, but the key part of the force strength to impose higher or thicker sheet metal processing; 2 All the conditions, the column in the vicinity of the nest high stress. Department ear board due to contact local area result, the stress and shear stress are larger, the column in the vicinity of the nest and ear board should focus on strengthening the local area to consider;3 These three conditions of to reverse the top beam / focus on both ends of the base load, load level and the top side of the beam bending guard / reverse the base ofworse than those. In the two-columns cover-powered support in the analysis should be based on the actual use of support s to focus on these types of case analysis.Although the research is to the ZY8800/22/45D type hydraulic support , the method of 3D model establishing and the FEM can be popularized to the other hydraulic supports. The conclusion and the research method of this paper have certain engineering worthiness.