Simulation Optimization And Structure Improvement Of PEX150×750 Fine Crusher

The jaw crusher is a commonly used crushing and processing equipment in the process of crushing and grinding of solid minerals.Because of its simple structure,reliable work,easy manufacture and convenient maintenance,it is widely used in mining,mineral processing,building materials and environmental engineering.With the continuous depletion of mineral resources,the marginal grade of useful minerals that can be mined continues to decline,which puts forward higher requirements for mineral processing equipment and mineral processing technology.At present,the design of the jaw crusher is still focused on the experience method,and there are many unreasonable aspects in the design process.With the application of virtual prototyping technology and finite element technology to production practice,the manufacturing cycle of crusher can be reduced,and the design of unreasonable parts can be improved to improve product performance.This article takes PEX150 x 750 fine jaw crusher crusher as an example,The main research contents are as follows:(1)Calculation of the parameters of PEX150×750 finer crusher.This paper introduces the structure and working principle of the crusher,analyzed and calculated the structure and working parameters of the PEX150×750 fine jaw crusher,and obtains the value or the approximate range of the relevant parameters,which is the next step of the crusher.Simulation optimization and structure improvement provide the basis.(2)The kinematics simulation and optimization of PEX150×750 finer crusher are carried out.The kinematics theory analysis was performed on any point on the Movable jaw through the schematic diagram of the movement structure of the crusher.The PEX150×750 fine jaw crusher simulation optimization provides theoretical support.The virtual prototype model of the crusher is established by using ADAMS software,The kinematics simulation analysis of the model is carried out,and mass center velocity of the inlet and discharge ports of the Movable jaw are obtained,The law of acceleration movement and the optimization of the crusher were optimized.The optimized crusher production capacity increased from 12.77m3/h to 16.1m3/h,and the production capacity increased by 26.07%.(3)Finite element analysis and structural improvement of the key mechanism of jaw crusher are carried out.The finite element analysis software ANSYS Workbench was used for the static analysis of the moving mechanism of the key mechanism of the crusher.The distribution law of the stress and deformation of the moving jaw body was obtained.The analysis results provided the reference for the optimization design and the improvement scheme is put forward according to the mechanical properties of the crusher,The performance has proposed an improvement plan,and the improved maximum stress value of moving jaws has increased from 50.973 MPa to 97.314 MPa.The maximum deformation was increased from 0.068 mm to 0.119 mm,but all of them were within the allowable value of the normal work of the component and the force is uniform after the improvement of the structure.The mass of the improved Movable jaw decreased from 429.47 kg to 396.11 kg,and the mass decreased by 7.77 %.The improved Movable jaw optimized weight loss effect is good.