The Analysis And Optimization Of Precision Spraying Equipment Chassis Structure

Comparing with the traditional way of spraying, the target precision spraying technique can reduce the dosage of more than 90%, in this way, we can also save cost and greatly reduce the pollution of the environment. Precision spraying equipment performance is the key to affect the quality of spraying, the dynamic and static performance of spraying equipment chassis is the foundation of efficient operation.This paper focuses on the analysis and optimization of precision spraying equipment chassis structure.The first, precision spraying equipment chassis structure model is established by SolidWorks software, according to the characteristics of the chassis structure, chassis structure and existing problems are analyzed. The corresponding boundary constraint and load distribution was imposed on the chassis structure mesh model by ANSYS workbench software, then the finite element static analysis (six kinds of working conditions) and dynamic modal analysis (four kinds of working conditions) have been carried out on it. It provides us the stress nephogram, the total deformation nephogram, the modal natural frequency curve and the vibration mode diagram of chassis structure, through analysis, it is found that the support plate on the base plate does not meet the rigid requirements of the structure, and it is prone to resonance phenomenon in the low order. Then, according to the above analysis result, optimize design of chassis structure is started by adding structure or size modification, after static and dynamic analysis of the optimized structure, the maximum displacement of optimized chassis support plate structure is 2.1647mm, reduce the 25 times than before, optimized chassis structure stress keep within 81.006MPa, the maximum stress value is one thirtieth lower than before. The optimized chassis performance is verified.Finally, the precision spraying equipment chassis’s kinematics simulation analysis of acrossing the gully,overing the barrier and climbing up and down the sloup were finished by ADAMS software. The displacement curves, speed curves and acceleration curves of the chassis centroid were drawn under two kinds of working conditions. Through analysis, we know that sports chassis ride comfort is mainly affected by the horizontal direction collision force and the vertical direction gravity, according to the simulation results, making a discussion on the chassis structure kinematics simulation program.