| The dump truck as a transport bulk goods with unloading machinery,high efficiency,low labor intensity,decades of rapid development and popularization at home and abroad.Since the lifting mechanism of dump truck is a key component of the main load bearing loading and transportation process,plays an important role in the safety and reliability of the equipment directly affects the life of dump truck,dump truck lifting mechanism improve the performance and stability is an urgent need to solve the problem.Research shows that the space position,loading and unloading performance and stability of the joint material lifting mechanism of dump truck,and the factors affecting the quality of parts.Therefore,study on the lifting mechanism of dump truck,has a very important significance to improve the performance and stability of loading and unloading.In this paper,EQ3093 type dump truck lifting mechanism as the research object,the related research,the main research contents include:1,In view of the EQ3093 of lifting mechanism of dump truck before pushing type structure features and working principle,mathematical model is established in this paper;2,According to the structure and position parameters of lifting mechanism of dump truck lifting mechanism,the establishment of three-dimensional model in Solidworks software,and virtual assembly and interference inspection of its;3,The no interference requirements of the assembly model in.X_T format into the software,the kinematics and dynamics simulation analysis,through the simulation analysis,to determine whether the design results are reasonable;4,Using ANSYS Workbench finite element analysis of the triangular arm lifting mechanism,the four kinds of stress strain distribution under different conditions;complete topology optimization of the triangular arm according to the analysis results,to meet the strength and stiffness conditions,the triangular arm lightweight design objective;5,On the basis of the optimization of the lifting mechanism,the influence of the manufacturing precision and the installation error on the lifting mechanism is considered,The optimal design of its stability is obtained,and the optimization resultsare consistent with the actual situation to meet the reliability requirements of the lifting mechanism.In this paper,through a variety of software to complete the analysis and Simulation of triangular arm topology optimization design of lifting mechanism of dump truck,to meet the strength and stiffness under the premise of quality triangle arm reduced from27.182 kg to 17.78 kg before optimization,the quality of the initial model is reduced to65.411%,to achieve the requirements of lightweight design.Finally add the manufacture precision and the installation error of the random error,complete the robust optimization design of lifting mechanism of dump truck,the optimization results are more reasonable and reliable. |
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