이차전지 원료 해쇄용 GRINDING DISC ASS’Y 구조해석에 대한 연구

Abstract

Globally, as population growth and economic development continue, resource consumption is increasing rapidly. As an alternative to electric vehicles was suggested as the environmental pollution problem emerged, the number of registered electric vehicles in Korea increased by more than 137 times compared to 2013. Secondary batteries are expected to expand into various markets such as small IT devices and electric vehicles, and the most important part of electric vehicles is the battery (secondary battery). Therefore, in this study, to analyze the stability of the CSM (Classifier Separator Mill) grinding disc that crushes secondary battery raw materials, structural analysis and vibration analysis of the 1st to 4th grinding discs and the final model were performed. Analyzed by simulation. The change of bending by the weight of the Grinding Disc is at least 0.065μm and maximum 0.075μm, and the change by the standard gravity is judged to be very low. The strain is at least 0.00031μm/μm and maximum 0.00078μm/μm, and even if the number of HAMER increases, the change by the weight is judged to be insignificant. When the Grinding Disc rotates at a maximum of 6000rpm, the deformation and deformation rate of the first to third models are similar, but the fourth model (HAMER 10EA) is more than three times and the final model (HAMER 12EA) is about four times. However, the maximum deformation is 28.21μm, which is considered to be insignificant when the change is 6000rpm. Six modes of natural Frequency analysis of the 1st~4th order and final model of the grinding disc appeared to be bent or twisted.