SU Yi feng, YAN Shi rong

 

(School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China)

 

 

Abstract: Aiming at researching effect factors to the working efficiency of sweeper, working parameters, including brushes rotating speed, cleaning speed and the air volume of centrifugal fan were discussed, a kinematics model of the brush was founded in ADAMS to simulate the motion trail of brush in the case of different brushes  rotating speed and cleaning speed. Then a set of brushes rotating speed and cleaning speed which generated the best motion trail was selected to be initial reference for subsequent optimizing. In addition, Matlab fitting tool was applied to figure out the relationship among brushes rotating speed, cleaning speed and working efficiency by making use of three data sets with variable air volume, and the formula was proposed which was then optimizied by fmincon function in Matlab. The results indicate that when the air volume is 8235m3/h, rotating speed 106r/min and cleaning speed 6.38km/h, the best working efficiency can be realized. In this situation, noise and energy consumption of sweeper can be reduced availably. It will provide a reference for determining sweepers working parameters.

 

Key words: working efficiency; brushes rotating speed; cleaning speed; Matlab optimization