Abstract: In order to study the vibration characteristics and the matching of motion parameters of the combined shaker， a three-dimensional model of the combined shaker was established by Solidworks， and kinematics simulation analysis was carried out by ADAMS. Through the virtual design and simulation of GDZS2460/2 upper and lower unit combined vibrating screen， it is obtained that the amplitude of the upper unit vibrating screen is 4.67 mm， the working frequency is 16.18 Hz， the inclination angle of the screen surface is 23°， and the amplitude of the lower unit screen is 9.16 mm， the working frequency is 12.16 Hz， and the inclination angle of the screen surface is 20°. Reasonable matching of the parameters of upper and lower unit sieves can make the material moving and layering faster in the upper unit and loosening and penetrating in the lower unit， so as to improve the processing capacity and screening efficiency of the combined vibration sieves， better meet different production needs， solve the problem of difficult screening of wet fine particles， and improve the service life.

Key words: Combined vibrating screen, Kinematics simulation, Parameter matching