Kinetics Research On Spindle Of Inertia Cone Crusher

Inert cone crusher is a new material crushing equipment developed in normal cone crusher.Its unique structural characteristics make it realizes advanced material selective crushing.With the rapid development of national economy,a lot of raw materials need to be broken every year.However,inert cone crusher has many advantages including big crushing ratio,big crushing strength,low energy consumption,product size uniform and so on,therefore it has been widely used.Virtual prototypical technology can generate the virtual model of the equipment on the computer,and carry out dynamic and adjustment and optimization of working parameters.This new way needn't manufacture the physical prototype and test the prototype time and time again and make the design of production partly or even completely depart from the dependence on physical prototype.It has great significance to shorten the design cycle,to reduce the design cost and to improve the competitive power of enterprise.With GYP600 inertia cone crusher as the research object,its kinematics analysis was implemented and its movement characteristics under the stable working condition was understood.Then the maximum crushing force of the crusher was calculated.Utilizing the maximum crushing force,the maximum force on the spindle from exciter that was caused by the maximum crushing force and formula of the spindle stress was obtained.Then the models of broken parts of the main spindle were established.ADAMS was used to make virtual simulation for the broken parts of the inertia cone crusher's spindle and the stress of the spindle was obtained and was compared with the result of theoretical calculation.In order to obtain dynamic performance,ANSYS was used to set up a finite element model of the spindle so as to make its structure statics analysis.Statics analysis showed that the main deformation was in the vicinity of the tangent of eccentric exciter's inner cylindrical surface and the spindle's outer cylindrical surface,got it's the maximum deformation and the maximum equivalent stress and verified it whether meet the strength requirements.Fatigue life of the spindle was carried out with DesignLife software to verify it whether meet the fatigue strength requirements.Modal analysis obtained the natural frequency and the corresponding mode shapes of spindle.The results show that the rotation of the vibrator frequency is much smaller than the natural frequency of the spindle,and it will not produce the resonance phenomenon.Thus,the spindle is safe and reliable.Using the harmonic response analysis,the vibration mode of the inertial cone crusher under working condition was obtained.The above analysis results provides some basis for the design of inertia cone crusher.