| With the rapid development of national economy of our country, the demand and mining of mineral resources increase continually, meanwhile, tailings appear more and more, but they cannot be separated effectively further by a good device, leading to that a large number of tailings discarded in each mine, which goes against the strategy for sustainable development of our country. Therefore, people continue to strengthen more efforts in developing mineral equipments, in which context, a new type of fine-grained re-sorting equipment came out. At present, this machine has been put on small production, and achieves good separation indexes; also, it has great application prospects. Nevertheless, something unreasonable of the machine’s structure in application, such as high transportation cost, inconvenience of installation and maintenance and so on, restrict the promotion and application of this equipment.The subject comes from a research project developed independently by teachers in my university, which aims at practical problems of the machine in its manufacturing, transportation and maintenance, and related research work were carried out. Base on spot survey and consulting a large literature, a modular improved design program was put forward. Then, we built the three-dimensional model by powerful design software Solid Edge, had been simplified, the model was exchange to a Parasolid file and inputted into the finite element analysis software ANSYS. In this software, some work for the model, including meshing, loading and constraining were done. Lastly, the software begin to solve and analyze in post processing, which can analyze whether the developed program is reasonable. We conducted a static analysis on stress and deformation with the maximum load for the developed rack, and the results showed that the deformation is small, which means that the structural rigidity meets the requirements, the maximum stress and intensity is less than the allowable ones. We also conducted a static analysis on the rack, extracted the first nine natural frequencies and mode shapes under its free model, and Understood its inherent characteristics, that is, eccentric balance wheel excitation frequency is less than and far from its first-order natural frequency, which proves that the improved the design is reasonable.In this thesis, the problems of vibrating cone concentrator hanging in the actual production were improved and designed, we built the three-dimensional model and conducted static and dynamic analysis to check the improved design program, and gained some research results. The improved program was approved and adopted by the subject team, and solved engineering practical problems. Improved suspension vibration cone concentrator has been put into industrial production, which has effective solved the problems that installation and maintenance was inconvenient and the transportation cost is high previously. The research in this paper provides a technical basis for further improvement of the hanging structure vibrating cone concentrator, which possesses great value in engineering applications. |
