浅谈旁路机构自由度对机构运动轨迹的影响

The Influence of the Freedom of Bypass Mechanism on the Motion Path of the Mechanism

机构的运动需要构件来组成,构件通过相应的约束,能够组成独立的运动机构,而机构的从动件运动轨迹取决于机构的自由度。一个复杂的运动机构中,我们可以根据机构的自由度得出:如果原始机构的运动轨迹已经确定后,再给原始机构新增一个自由度为零且新增机构的机座与原始机座相同时,则新增机构不改变对原始机构的运动轨迹,但新增机构可以作为原始机构的原动件,对原始机构进行驱动;此种新增机构本文定义为旁路机构;旁路机构在现实机构中得到广泛的应用。

In the movement of the mechanism,the movement of the mechanism needs to be composed of components.The components can form an independent movement mechanism through corresponding constraints.The freedom degree in the mechanism is the movement track of the components.A complex motion mechanism,we can according to the mechanism of trajectory concluded:such as the trajectories of an original institutions have been determined,and give the original mechanism of a new degree of freedom is zero,the new institutions don’t change the trajectory of the original institutions,but new institutions as original mechanism of the moving parts,the original mechanism drive.This kind of new mechanism is defined as bypass mechanism.Bypass mechanism has been widely used in practical institutions.