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Joint Shredder aka harvester is a versatile, high automation, high efficiency tree cutting machinery, logging operations in the mountains, the Joint Shredder shows unmatched advanced. Thus, the development of multi-functional, and applicability good joint working efficiency significantly Shredder must focus on the research and development of the domestic forestry machinery industry in the future, at the same time has a huge application market. The status and prospects of the development of the plantation area in China, to accelerate the development of multifunctional automated logging machinery suitable for China's national conditions, forest situation, especially the United Logging is understandable necessity. The working device throughout the United Shredder core, its design is reasonable or not directly affect the overall performance and operating efficiency. This article through the analysis of a large number of domestic and foreign References finishing site visits, combined with the real machine, a theoretical analysis of the United Logging device (manipulator part) use mechanical theory and mechanical design, using SolidWorks software United Logging The Machine virtual design, made a working device parts sports simulation and finite element analysis. Not only can reduce the physical prototype, prototype, test, and making the original difficult to express in a two-dimensional drawings and design movement relative position and interference becomes very intuitive and easy to modify, and can greatly simplify the design and development of process and shorten the development cycle, reduce development costs, improve product design quality. In this thesis, relying on the \technical and physical prototype based on the analysis and study of the joint Shredder device (main manipulator part), work methods and principles; the Virtual Design the computer virtual design and simulation technology, joint Shredder computer platform, motion simulation analysis; using the finite element theory combined with the structural analysis of finite element analysis software on the device (main manipulator part), and make structural design optimization based on the analysis results; consolidated As research content, and give full play to the advantages of CAE technology, to obtain the corresponding experimental parameters, design technical reference for the future development of a comprehensive research and development and similar forestry machinery and equipment.
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