Working Mechamism Performance And Modal Analysis Of2PGCS-710×2750Classifying Crusher

Crushing operation is very important both in mineral processing,chemical industry and building materials industry, particularly in the coal industry, crushing effect directly affects the stability and technology system, and related to the sales of coal and the subsequent process of investment directly. However, breaking bad working environment, eighty years ago China’s crushing machinery compared with foreign advanced technology has high energy consumption, low efficiency, broken granularity is not up to the requirements of the. In recent years, with the development of domestic grading crusher technology, research on the basic principle, innovation broken tooth design, structure form, tooth arrangement have been close and abroad, but have to be further improved. This paper studied on the above aspects, with hope for the crusher technology classification can provide some references.Based on the model in the research and development of2PGCS-710×2750type classification crushing machine as the research object, in contrast,analysis and summarized in recent years common grading crusher tooth shape, layout, put forward is not easy to damage, small deformation, the stress concentration of optimal crusher tooth structure and has the advantages of simple structure, the bearing roller tooth arrangement scheme of small damage; combined with different properties, the process of metal wear resistant materials, such as wear resistance, hardness, heat treatment and machining process, the selection of wear resistant materials and new type crushing teeth. Use SolidWorks to establish the three-dimensional model of the machine an important component of tooth cap type chickpea tooth and spiral tooth roller, using ANSYS Workbench finite element analysis was carried out on it, the corresponding stress and strain nephogram, draws some conclusion machine has reasonable structural design, and according to the analysis reflects the strength weak points the improved scheme, based on the analysis of structure improvement, improve the strength of the structure was established by SolidWorks model;2PGCS-710×2750type classification crusher3D model machine, carried out using ANSYS mode analysis of the crushing roller and the whole machine, the first6natural frequencies and vibration mode, grasp the basic modal frequency of roller and the whole machine, and provides some references for the selection of suitable crusher crushing roller speed crushing of different hardness materials and motor parameters appropriate to effectively avoid the resonance frequency.