A new kind of swing movable tooth transmission mechanism with double internal tooth profile
or double external tooth profile is designed.Its structural stetch is given and the principle of movement is introduced.Then two types of parametric equations of the center track of movable tooth joint element which mesh with center gear are obtained
and the theory study on the envelope curve of the track is carried out
and the center gear tooth profile curve equation is obtained
the characteristics
the merits and shortages of the mechanism are introduced.