Abstract: Based on the research, a new kind of sprockey developed in order to eliminate the arches of the pallets on a sintering machine, which in an original idea an solving the arch problem, In the light of axiom of the condition for uniformaty and acceleration of motion, the tooth-outline cure is taking shape and new forms of teeth of the sprocket are coming into being, Besides, the equation for the tooth-outline curve of the sprocket is derived and the corresponding drawing of the tooth forms is made by a computer, which establishes the theoretical foundation for an orderly accelerative and uniform logical motions The tooth form fo the sprocket based on this theory can eliminate the additional inertia force of the pallet line and lessen the arches of pallets, therefore, reduce the airleak rate.

Key words: Compound tooth form, Pallet, Sintering machine, Uniform motion