According to the actual operating conditions of HSX6 type coal washer bucket elevator

and the force analysis of its system is carried out

the multi-degree of freedom dynamics model and mathematical model are established.Meanwhile

the simulation and analysis of the lifting mechanism are carried out by using MATLAB/simulink software

the stretching force change regulation of a key component-the scraping belt in a cycle is got

then it is compared and analyzed with values in field test

and the results are basically the same.Based on the conclusions above

a further calculation of the maximum stretching force of scraping belt in different speed is carried out

the change regulation between scraping belt speed and its maximum stretching force is obtained

and a theoretical basis for design of coal washer bucket elevator is provided.