Finite Element Analysis And Optimization Of Inertia Cone Crusher

After the reform and opening up, China has been in rapid development. The development of the economics is very fast, skyscrapers tower over the land. With the acceleration of urbanisation process, cement and concrete has surrounded our lives. Demands in fields which is related to material crushing is growing everyday. As a big country of mineral producing, crushing various of materials is an important process in industrial field. About 12% of the electrical energy is used in the process of materials crushing. However, there is only 15% of the electrical energy is used to crush materials. Most of the remaining energy were used in the mill. More incredible is that the mill’s efficiency is only 1%. So the concept "More crushing and less grinding" is more popular. Inertia cone crusher is the representative models which can achieve the requirements. It is based on material layer broken.Taking advantage of the defects of material and intense nutation movement, crushing capacity of inertia cone crusher is greatly strengthened. Joining the high frequency vibration makes the product granularity of inertial cone crusher more uniform, crushing material ejected in time suppresses the generation of over crushing effectively. In the technological process of some concentrating mills, the requirement of product granularity needs to be achieved by mill. Due to the emergence of inertial cone crusher, the mill is replaced directly. It can clearly be seen that inertial cone crusher can truly realize the request of less grinding and more crushing.Taking GYP 1500 inertial cone crusher as an example, we analyze the key working parts-- main shaft, inner cone, inner cone lining board. Make parametric modeling by the Pro/E software and achieve three-dimensional entity model. By understanding the development of the theory of crushing, and analyze in-depth crushing principle of inertial cone crusher, we obtain acting force distribution of inner cone and inner cone lining board. Finite element load is analyzed by using ANSYS software. When the inertial cone crusher is working, the condition of its working part is bad. Crushing material has a certain randomness and directly on the lining board,then the stress of the lining board will become complicated. Owing to the above reason, the analysis of the load is very important. Secondly, the dynamic modal is analyzed, based on the modal theory and key components of the first ten order natural frequency and vibration mode extracted in the end. To avoid resonance, the working frequency of the inertial cone crusher and extraction of natural frequency are contrasted. Finally, the crushing cavity shape and the reason of the liner wear are analyzed.Optimize the model to make the stress values on the lining board minimum is in order to make the working efficiency of the crushing cavity achieve the optimal.The result shows the force and variational trend of the key components of inertial cone crusher, and provide a certain basis for further optimization of the structure and the large-scale development of the product.