Design And Optimization Of High-speed Car Loader

At present,China is moving forward towards the two-hundred-year goals,modernization continues to advance in depth,the infrastructure of various industries continue to increase speed.However,no significant technological innovation has been made in the shipment technology at the end of various grain crops,cement and other production lines.Although bulk transport is proposed in most industries,it is still difficult to be applied in practice.At present,the majority of domestic to bag transport-based.This method has the disadvantages of high labor cost,low efficiency and poor adaptability.Therefore,after the comprehensive comparison of domestic and foreign loading technology,this paper puts forward a full-automatic high-speed loading machine,which meets the advantages of high efficiency,full-automatic and strong practicability.In this paper,the key mechanism of the car loader is designed and optimized,and the strength of the important parts is checked by the finite element method,which has higher feasibility and practical significance for improving the functional performance of the high-speed car loader,it provides a theoretical guidance for the practical production debugging of the follow-up equipment.The main contents are as follows:A new type of 10-bar mechanism pushing package device is proposed by combining the domestic and foreign pushing package schemes and the topological diagram and kinematic chain of single-degree-of-freedom mechanism.At the same time,kinematics analysis and Adams kinematics simulation of ten-bar mechanism are carried out,and the curves of displacement,velocity and acceleration with time are analyzed.The results show that the displacement in x direction,velocity and acceleration meet the design requirements,and the displacement in y direction exceeds the allowable error.The optimal design of the mechanism is carried out by using MATLAB optimization function,and the optimal bar length parameters of the mechanism are obtained.The kinematic simulation results show that the displacement error in x direction and y direction decrease by 55% and 64.7% respectively,which meet the design requirements.The dynamic analysis of the optimized backward pushing package device is carried out,the dynamic static matrix equation is established to provide the theoretical basis for the dynamic simulation,and the dynamic simulation of the mechanism is carried out in Adams,the output thrust curve of the mechanism and the force curve of the pin shaft at each hinge point are obtained,which verifies that the output thrust and the mechanical properties of the pin shaft can meet the design requirements.At the same time,in order to ensure that the loader can work efficiently and stably under complex working conditions,the strength analysis of its important parts is carried out,and the limit working conditions of its important parts are obtained.At the same time,using the ANSYS Workbench to carry on the statics analysis to the swing packing device frame,the drawing packing device,the stress and the distortion of the device under the limit working condition were analyzed.The test results show that all the important parts can work safely and stably.The first six natural frequencies are selected as the object of modal analysis for the frame of the pendulum packaging device.The test results show that the resonance does not occur in the working process of the equipment by comparing the inherent frequency of the frame with the excitation frequency of the system.