The Analysis of the Trajectories Based on the Basic Parameters of the Double Eccentric Wheel Drive Mechanism

The eccentric wheel plays an important role in the realization of mechanism motion aspects.According to the basic principle of mechanical motion,the law of motion of the double eccentric wheel drive is derived.The motion equation is derived according to the characteristics of eccentric.The comprehensive analysis of the system trajectory is conducted.The basic parameters(eccentricity,deviation angle,etc)of double eccentric on the influence of the trajectory are studied.The characteristic of the double eccentric wheel mechanism is analyzed as the unidirectional intermittent motion mechanism.The relationship between the characteristic of the unidirectional intermittent motion and the design of parameters is revealed.It is proved that the double eccentric instead of two degrees of freedom drive is feasible.The synchronization of system is effectively solved.Eccentricity e1 and e2 is related to eccentric diameter R1 and R2.Horizontal movement stroke h is related to eccentricity e2.The larger e2 gets,the largerh gets,and it will produce the greater impact.The relationship of motion parameters and load characteristics should be considered in the design.Under the premise of meeting the movement,a smaller value is taken as possible eccentricity.It provides theoretical support for selection for engineering design.