Abstract: Aiming at the problem of a shortage both in strength and stiffness of the line gear in the traditional mechanical transmission field,combined with the characteristics of the space curve meshing of the line gear,a kind of staggered axial gear transmission mechanism with high-strength and large transmission ratio is designed,which can be used to the traditional machinery.The experimental results show that this kind of line gear with high-strength structure obtained by 3D printing equipment,has high shape-accuracy and high dimension-accuracy,which can perform meshing transmission continuously and stably.

Key words: high-strength, large transmission ratio, staggered shaft, line gear